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Rosemont Copper Mine - APP Applications Vol 3

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					Aquifer Protection Permit Application
                           Volume 3


            Rosemont Copper Company




                          February 2009
Aquifer Protection Permit Application
Rosemont Copper Company
Volume 3


Prepared for:




4500 Cherry Creek South Drive, Suite #1040
Denver, Colorado 80246
(303) 300-0138
Fax (303) 300-0135


For Submission to:




1110 West Washington Street
Phoenix, Arizona 85007
(602) 771-4385
Fax (602) 771-4674


Prepared by:




3031 West Ina Road
Tucson, Arizona 85741
(520) 297-7723
Fax (520) 297-7724
Tetra Tech Project No. 114-320794


February 2009
                   APPENDIX E

CONCEPTUAL GROUNDWATER MODEL
ERROL L. MONTGOMERY & ASSOCIATES, INC.
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                                     TECHNICAL MEMORANDUM


       DATE :           November 30, 2007

       TO:              Janine Derby, U.S. FOREST SERVICE

       FROM:            James S. Davis

       cc:              Jamie Sturgess, ROSEMONT COPPER COMPANY

       SUBJECT:         CONCEPTUAL GROUNDWATER MODEL, ROSEMONT PROJECT
                        (FS MPO Comments – Item Nos. 2, 5, 8, and 10 [GW-2, GW-4, GW-7, and
                        GW-8])


               In your letter dated October 19, 2007, you requested the following information:

               Item 2 [GW-2]: “…a description of the potential for a post-mining pit lake with the
                               geochemical characteristics that could be expected.”

               Item 5 [GW-4]: “A conceptual groundwater model based on current information.”

               Item 8 [GW-7]: “Information on existing groundwater levels, direction of flow, gradient,
                               transmissivity and pump testing.”

               Item 10 [GW-8]: “Vertical characterization of groundwater quality, including
                               characterization of different geologic units at different depths, such as
                               fractures alluvial subflow and alluvial aquifers.”

       We have addressed these items using currently available data and information. However, additional
       data and analyses will be required to more completely define the groundwater system in the
       Rosemont Project area. These additional data and analyses, which will need to be obtained during the
       EIS process, are also addressed herein.




                                                •         •
                         ERROL L. MONTGOMERY & ASSOCIATES, INC.                                         2




                               HYDROGEOLOGIC CONDITIONS


         The Rosemont Project is located in the northern Santa Rita Mountains, and is situated partly
inside and partly outside the Tucson Active Management Area (AMA) as defined by Arizona
groundwater law. The Cienega Creek drainage area, which includes Davidson Canyon, is located
outside the Tucson AMA, east of the crest of the Santa Rita Mountains and east of the Rosemont
Project area. The upper Cienega basin occurs east from the Santa Rita Mountains and the Rosemont
Project area. The upper Santa Cruz basin is located west and north of the Santa Rita Mountains,
inside the Tucson AMA. Hydrogeologic conditions in the vicinity of the Rosemont Project are
described by Hargis and Harshbarger (1976). Hydrogeologic conditions for the Cienega Creek and
Davidson Canyon areas are described in reports issued by Pima Association of Governments (1998,
2000, and 2003).


GEOLOGIC FRAMEWORK

         Geologic formations that crop out in the Rosemont Project area include alluvial deposits
along the ephemeral wash channels, Quaternary to Tertiary basin-fill deposits, Tertiary intrusive
granitic rocks, Tertiary rhyolite and andesite, Mesozoic to Paleozoic sedimentary rocks, and
Precambrian quartz monzonite. Rocks of Mesozoic age include volcanic rocks and well-lithified
conglomerates, sandstones, and mudstones. The Mesozoic rock units have been cut by complex
faulting and fracture systems that generally trend northwest and northeast. Sedimentary rock strata of
Paleozoic age are generally exposed in the west part of the project area, near the ridgeline of the
Santa Rita Mountains. The Paleozoic rocks include limestones, dolomites, and quartzites which were
uplifted, faulted, and intruded by granitic rocks during the Laramide orogeny (Hargis and
Harshbarger, 1976). East of the Santa Rita ridgeline, the steeply-dipping Paleozoic rocks are overlain
by the more gently-dipping Mesozoic rock units. Quartz monzonite of Precambrian age is exposed
west of, and extends beneath, the Paleozoic rocks. A geologic map of the study area is shown on
Figure 1. The principal geologic units in the Rosemont area are described as follows:

        •   Alluvium of Holocene (Recent) age which occurs as permeable, unconsolidated
            sediments along the floodplains of the ephemeral washes
        •   Basin-fill deposits of Quaternary and Tertiary age, which are poorly permeable near the
            Rosemont site and moderately permeable toward the deeper parts of the Cienega basin
        •   Pantano Formation of Tertiary age, consisting of poorly permeable mudflow deposits
        •   Mesozoic (Cretaceous) sedimentary rocks, including:
            o Salero Canyon Formation consisting chiefly of poorly permeable, well-cemented
                conglomerate and mudstone
            o Turney Ranch Formation consisting of poorly permeable quartzitic sandstone and red
                siltstone
            o Shellenberger Canyon Formation consisting of poorly permeable sandstone, arkosic
                sandstone, limestone, and siltstone
            o Apache Canyon Formation consisting of poorly permeable silty limestone, shale,
                siltstone, and arkosic sandstone
            o Willow Canyon Formation consisting chiefly of poorly permeable felspathic
                sandstones and arkosic conglomerate with minor mudstone, silty limestone strata,
                and andesite flows
                         ERROL L. MONTGOMERY & ASSOCIATES, INC.                                       3




            o   Glance Conglomerate consisting of a pebble to boulder conglomerate, locally
                containing marble and quartzite
        •   Paleozoic sedimentary rocks, including:
            o Rainvalley Formation (Permian) consisting of gray limestone with minor sandstone
                and siltstone
            o Concha Limestone (Permian) consisting of light- to medium-gray limestone with
                abundant chert nodules, grading to sandy and dolomitic near the base of the
                formation
            o Sherrer Formation (Permian) consisting chiefly of light-gray to pink silty quartzose
                sandstone
            o Epitaph Formation (Permian) consisting chiefly of light- to medium-gray limestone,
                marble, dolomite with local gypsum or anhydrite
            o Colina Limestone (Permian) consisting chiefly of dark gray to black limestone,
                marble, and dolomite
            o Earp Formation (Permian-Pennsylvanian) consisting of green, red, and tan siltstone,
                sandstone, and minor limestone or marble and dolomite
            o Horquilla Limestone (Pennsylvanian) consisting of white to light-gray silty limestone
                and dolomite with shale interbeds
            o Escabrosa Limestone (Mississippian) consisting of white to light-gray marble with
                dolomitic limestone present in the lower portion
            o Martin Limestone (Devonian) consisting of light-gray to light blue-gray dolomitic
                marble, tan sandstone, and shale
            o Abrigo Formation (Cambrian) consisting of light-tan to gray laminated limestone
                with siltstone interbeds
            o Bolsa Quartzite (Cambrian) consisting of gray to white quartzite or quartzose
                sandstone, arkosic sandstone, and quartzose conglomerate
        •   Continental Granodiorite (Precambrian) brown to light-gray granodiorite to quartz
            monzonite

The relative configuration and disposition of rock units in the pit area are shown on the east-west and
north-south geologic cross-section shown on Figure 2.


OCCURRENCE AND MOVEMENT OF GROUNDWATER

        Limited quantities of groundwater occur in the faults and fractures of the consolidated
Mesozoic and Paleozoic basement rocks of the Santa Rita Mountains. In general, groundwater in the
shallow Holocene alluvium along the ephemeral wash channels is believed to occur temporarily
during or following substantial and prolonged storm events. Moderate quantities of groundwater
occur in the basin-fill deposits in upper Cienega basin to the east of the Rosemont Project.

Holocene Alluvium

        The Holocene alluvium generally consists of unconsolidated sand and gravel deposits along
the ephemeral wash channels. When groundwater is present in these deposits, it occurs under
unconfined conditions. Groundwater that is intermittently present in these deposits provides short-
term storage of water which infiltrates following runoff from storm events. The stored water
provides a temporary source of water to floodplain vegetation. The groundwater not taken up by the
                          ERROL L. MONTGOMERY & ASSOCIATES, INC.                                        4




vegetation gradually dissipates by infiltrating downward to recharge the underlying bedrock units and
by flowing laterally downstream in the Holocene alluvium. Thickness of the Holocene alluvium
located along Scholefield and Barrel Canyon washes are believed to range from a few feet to several
tens of feet, generally increasing in the downstream direction. Because the amount of water stored in
the Holocene alluvium is both limited and temporally variable, it does not provide a substantial or
reliable source of water supply to wells. Even wells which penetrate both Holocene alluvium and
underlying bedrock obtain most of their yield from the bedrock (Hargis and Harshbarger, 1976).

Basin-Fill Deposits

         Groundwater occurs in the Quaternary to Tertiary basin-fill deposits [Gila Conglomerate] in
the southern part of the study area. Hargis and Harshbarger (1976) speculated that wells completed
in these deposits might be capable of producing up to 100 gallons per minute (gpm). However, wells
(D-18-15)36daa[PC-4], (D-18-16)31cbb[AH-8], and (D-18-16)31bbc[PC-3] which are located in the
southern part of the proposed pit area and which penetrate the full thickness of the basin-fill deposits,
have sustained yields of 1 to 2.5 gpm or less. These relatively low yields strongly suggest that the
basin-fill deposits near the mine are well-cemented and poorly permeable. This is consistent with
recent pumping test results (Montgomery & Associates, 2007) which indicate that aquifer
transmissivity and hydraulic conductivity of these deposits are very small. Therefore, potential well
production or pit inflow from this unit is expected to be very small.

Mesozoic and Paleozoic Sedimentary Rocks

         Groundwater in the Mesozoic and Paleozoic sedimentary rocks occurs chiefly in joints,
fractures, and faults. Groundwater in the Mesozoic rocks probably occurs under semi-confined to
confined conditions. Groundwater in the Paleozoic rocks probably occurs chiefly under confined
conditions. Water levels (hydrostatic head) in drillholes and wells penetrating Paleozoic rocks in and
near the proposed pit area are commonly higher than in the Mesozoic rocks by a few feet to several
tens of feet. In a few cases, water levels in the Paleozoic rocks were above land surface, causing the
drillholes or wells to flow or seep. The elevated hydraulic head in the Paleozoic rocks is a result of
their high western elevations along the Santa Rita ridgeline. Because the majority of drillholes
installed during the 1970s have since been abandoned or destroyed, recent water level contours for
the Paleozoic rocks have not been prepared. Further investigation of groundwater levels in the
Paleozoic rock units will be conducted as described in the Proposed Groundwater Investigations
section of this memorandum.

         The principal rock units in and surrounding the pit area include the Paleozoic rocks that will
make up the west pit wall, the Willow Canyon Formation, and the Glance Conglomerate. The
Paleozoics rocks, which will generally comprise the base and west wall of the pit, are not expected to
yield substantial quantities of groundwater to the pit due to the generally low hydraulic conductivity
of the rock matrix. The Willow Canyon Formation, which will comprise much of the east wall of the
pit, may yield small quantities of groundwater to the pit. The Glance Conglomerate, which will
comprise a relatively small portion of the north pit wall, may initially yield moderate to large
quantities of groundwater to the pit, but will be quickly dewatered due to its relatively small volume
compared with the vertically and laterally extensive Willow Canyon Formation. Additional drilling
and testing are recommended to better define aquifer parameters and the groundwater flow system.
                         ERROL L. MONTGOMERY & ASSOCIATES, INC.                                           5




Groundwater Levels and Groundwater Movement

        Based on water level measurements obtained in approximately 50 drill holes during the
period from 1975 through 1982, depth to groundwater in the Rosemont Project area, with a few
exceptions, ranged from about 20 to 110 feet below land surface (Hargis and Harshbarger, 1976;
Hargis & Montgomery, 1982). Most of these drillholes have been since abandoned or destroyed,
although a few were converted to stock or domestic wells. Recent water level measurements in
21 stock, domestic, and test wells by Montgomery & Associates in 2006 and 2007 and by ADWR in
2005 are summarized in Table 1. These data suggest that groundwater levels in 2007 are generally
higher than in 1975. Because precipitation in 1975 was generally much lower than average,
groundwater recharge was probably also lower than average. Water levels in wells in the Rosemont
Project area will be regularly monitored prior to and during mining operations in accordance with the
Groundwater Monitoring Plan for the Rosemont Project.

        Contours of groundwater level altitude in 2007 are shown on Figure 3. Altitude of
groundwater level in the study area ranged from more than 5,100 feet above mean sea level (msl) in
the western part of the study area to less than 4,400 feet msl in the northeast part. The direction of
groundwater flow in the bedrock areas appears to be strongly influenced by topography. However,
the general direction of groundwater flow in the western part of the study area is toward the east, but
gradually transitions to the northeast in the eastern part of the study area.

Well Yields

         Most domestic and stock wells in the Rosemont Project area obtain groundwater from the
Mesozoic rock units. Sustainable well yields from most of these wells range from less than 1 to of a
few gpm. Only three wells in the mine area produce more than a few gpm. Well (D-18-16)29cda
[G-35] reportedly produced 64 gpm when it was originally drilled in 1963. However, based on recent
testing by BJ Drilling Company in 2007, such a pumping rate is probably not sustainable for long
periods of pumping. The sustained yield from this well is about 20 gpm or less (Bob Jackson, verbal
communication, 2007). Wells (D-18-13)30cba[PC-1] and (D-18-13)30cdc[PC-2], which were
recently installed to evaluate hydrogeologic conditions in the pit area, have pumping rates in excess
of 50 gpm. These well production rates may be associated with the presence of a large fracture or
fault and/or with the presence of the Glance Conglomerate. The time duration for which these
pumping rates are sustainable is unknown, but is probably limited due to the limited volumes of
groundwater in storage in both the Glance Conglomerate and fracture or fault zones. Records of
reported well yields from other wells penetrating the basin-fill deposits south of the mine area are
very limited, but suggest sustainable pumping rates may be in the range of 1 to 15 gpm.


AQUIFER PARAMETERS

         Aquifer hydraulic properties that control groundwater movement and yield to wells include
transmissivity and storage coefficient. Transmissivity is defined as the rate of flow through a vertical
section of an aquifer 1 foot wide and extending the full saturated thickness of the aquifer under a
1:1 hydraulic gradient (Theis, 1935). Units for transmissivity are gallons per day per foot width of
aquifer (gpd/ft). Transmissivity is a measure of the ability of an aquifer to transmit groundwater, and
is equal to the product of hydraulic conductivity and saturated thickness of the aquifer. Storage
                         ERROL L. MONTGOMERY & ASSOCIATES, INC.                                         6




coefficient is defined as the volume of water an aquifer releases from or takes into storage per unit
surface area of the aquifer per unit change in head (Lohman, 1972).

         In the south part of the pit area, well (D-18-16)31cbb[AH-8] penetrates only the basin-fill
deposits. Wells (D-18-16)31bbc[PC-3] and (D-18-15)36daa[PC-4] penetrate both the basin-fill
deposits and the underlying Willow Canyon Formation. Computed transmissivities from these wells
range from 6 to 40 gpd/ft (Montgomery & Associates, 2007). Based on a basin-fill deposits thickness
of 470 feet, assuming all water production is derived from the basin-fill deposits aquifer, computed
hydraulic conductivity would range from 0.013 to 0.077 gallons per day per square foot (gpd/ft2)of
aquifer. However, because wells PC-3 and PC-4 penetrate large sequences of both Willow Canyon
Formation and basin-fill deposits, the small computed aquifer parameters confirm the small potential
yield of both units. Based on a combined saturated thickness for both rock units of 1,200 to
1,400 feet, average hydraulic conductivity of the two units ranges from 0.004 to 0.033 gpd/ft2.
Computed storage coefficient is on the order of 3 x 10-4.

         Farther south and east from the mine, toward the deeper parts of the Cienega basin, the basin-
fill deposits may be less cemented and therefore more permeable than in the pit area. However,
results of a pumping test conducted at well (D-17-18)17cdd2[EE-2], located approximately 12 miles
northeast of the mine area in the Cienega basin, indicate transmissivity of the basin-fill deposits is
about 10 gpd/ft (Montgomery & Associates, 1985). Based on an aquifer thickness of about 500 feet,
computed hydraulic conductivity is 0.02 gpd/ft2.

        In the north part of the pit area, well (D-18-16)30cdc[PC-2] penetrates the Willow Canyon
Formation, the Epitaph Formation, and possibly the Glance Conglomerate. Well (D-18-16)30cdd
[A-885] probably penetrates the same units, although information on well depth and construction is
not available. Computed transmissivities for these wells range from about 300 to 450 gpd/ft
(Montgomery & Associates, 2007). Computed hydraulic conductivity ranges from about 0.2 to
0.3 gpd/ft2. Computed storage coefficient is about 8 x 10-4.

        Farther north in the pit area, well (D-18-16)30cba[PC-1] penetrates the Willow Canyon
Formation and probably the Glance Conglomerate. Computed transmissivity for this well is about
27,000 gpd/ft and may be larger. However, this relatively large transmissivity is believed to be
associated with the well intercepting a fault or large fracture system that will be fairly quickly
dewatered. Therefore, the operative transmissivity for long periods of pumping are expected to be a
few to several hundred gpd/ft, similar to that calculated for wells PC-2 and A-885.


GROUNDWATER RECHARGE

         Hargis and Harshbarger (1976) indicate that recharge to the groundwater system in the
Rosemont area occurs from snowmelt and runoff on the western slopes of the Santa Rita Mountains
where the vertical faces and contacts of the Paleozoic units outcrop. Recharge to the groundwater
system in Holocene alluvium along the principal washes and canyon bottoms is probably minimal
due to the presence of saturated bedrock at the base of the channels and the lack of apparent recharge
mounds along the channels (Hargis and Harshbarger, 1976). Due to the generally limited capacity for
storage of water in the wash alluvium and generally low permeability and storage capacity of the
underlying bedrock units, the rate of recharge to the groundwater system is believed to be very small.
                         ERROL L. MONTGOMERY & ASSOCIATES, INC.                                       7




SPRINGS AND SEEPS

         Hargis and Harshbarger (1976) identified six springs or seeps in the vicinity of the Rosemont
Project. Elevation of these springs is generally in the range of 4,680 to 5,200 feet msl. The locations
of these springs are shown on Figure 3. These springs occur where fractures and joints in the
Cretaceous and Paleozoic Rock units intercept deep canyons. In 1975, these springs reportedly
produced water throughout the year at rates of less than 0.01 cubic feet per second (cfs), except
Rosemont Spring which reportedly produced about 0.01 cfs. Where flow is sufficient, some of the
springs are used as sources of stock water. Due to the extreme drought conditions that have
predominated since 1996, recent discharge rates from these springs are smaller than observed in 1975
and many of them are dry. Spring monitoring data obtained by Hargis and Harshbarger in 1975 and
by Montgomery & Associates in 2006 and 2007 are summarized in Table 2.

         Two additional springs, Questa and Barrel Springs, were identified in the east and northeast
parts of the study area (Figure 3). Elevations of these springs are 4,601 and 4,270, respectively.
Questa Spring occurs where Davidson Canyon wash exits the basin-fill deposits and encounters the
poorly permeable Pantano Formation. Barrel Springs occurs where Barrel Wash encounters a poorly-
permeable andesitic flow unit of the Salero Formation. In 2007, observed discharge rates from these
springs were less than 0.01 cfs. Spring monitoring data obtained by Montgomery & Associates in
2007 are summarized in Table 2.

        These springs and seeps will be regularly inspected and monitored prior to and during mine
operations in accordance with the Groundwater Monitoring Plan for the Rosemont Project.
Monitoring will include both measurement of flow rates, documentation of site conditions, and, when
flow rates are sufficient, documentation of chemical water quality.


CHEMICAL QUALITY OF GROUNDWATER

        Available data on the chemical quality of groundwater in the study area were obtained by
Hargis & Harshbarger in 1975, Hargis & Montgomery in 1982, and Montgomery & Associates in
2006 and 2007. These data indicate that samples obtained from wells range from a calcium-
bicarbonate to sodium-bicarbonate type, whereas samples obtained from springs is a calcium-
bicarbonate type. Total dissolved solids concentrations of the groundwater samples obtained from
wells and springs generally ranges from about 300 to 600 milligrams per liter (mg/L). Results of
laboratory analyses of water samples obtained from wells are summarized in Tables 3 and 4. Results
of laboratory analyses of water samples obtained from springs are summarized in Tables 5 and 6.

       Further investigation of groundwater chemical quality will be conducted as described in the
Proposed Groundwater Investigations section of this memorandum. In addition, chemical quality of
groundwater will be regularly monitored at proposed monitor wells and springs prior to and during
mining operations, as described in the Groundwater Monitoring Plan for the Rosemont Project.


PIT LAKE

        Following cessation of dewatering, groundwater will discharge to the Rosemont pit, chiefly
from the Willow Canyon Formation and other bedrock formations, chiefly along the east pit wall.
                         ERROL L. MONTGOMERY & ASSOCIATES, INC.                                        8




The rate of groundwater inflow is uncertain at this time and will require additional well drilling and
testing, followed by development of a numerical groundwater flow model to reliably quantify pit
inflow rates. As described in the Proposed Groundwater Investigations section of this memorandum,
plans to drill and test the additional wells and to develop a groundwater flow model during the EIS
process are currently being developed.

          Due to the small permeability of bedrock formations in the mine area, pit inflow rates are
expected to be small, probably on the order of a few tens to a few hundred gpm. Following cessation
of mining and pit dewatering operations, groundwater will flow into the pit until the east pit lake level
rises to the level of the basin-fill deposits in the east pit wall, at which point groundwater level
gradient will become less steep, and groundwater inflow will begin to decrease. However,
groundwater flow toward the pit will likely continue in perpetuity, decreasing as the level of the pit
lake rises. As the pit lake grows in size and surface area, it is expected that the increasing rate of
evaporation from the lake surface will eventually equal the rate of pit inflows, and the pit lake will
reach a relative level of equilibrium and lake level will stabilize. Such a state of relative equilibrium
between pit inflow and outflow may not be reached for several decades or longer. It is expected that
the level of the lake will remain below the regional groundwater level, such that the pit will provide
passive containment of pit lake water and will prevent discharge of pit lake water to the groundwater
system. However, groundwater flow modeling of the area must be conducted to confirm the ultimate
size, surface area, and degree of passive containment of the pit lake.

         In consideration of the general chemical quality of groundwater in the mine area and the large
acid neutralization capacity of the carbonate and other rock units that would comprise the pit walls,
the pH of the pit water is expected to remain nearly neutral and, as such, the metals content of the
water is expected to be very low. Because of the relatively large rate of evaporation from the pit lake,
the total dissolved solids content of the water will increase over time. However, groundwater flow
and geochemical modeling must be conducted to reliably estimate the long-term size and chemical
quality of pit lake water.
                          ERROL L. MONTGOMERY & ASSOCIATES, INC.                                         9




                       PROPOSED GROUNDWATER INVESTIGATIONS


        Additional hydrologic investigations have been designed to obtain the data needed to assess
potential impacts of mine dewatering to the groundwater resources of the study area. These
investigations will include:

    •   Characterization of regional groundwater conditions
    •   Characterization of mine area groundwater conditions
    •   Groundwater flow modeling
    •   Pit lake flow and geochemical modeling



REGIONAL GROUNDWATER CONDITIONS

         Existing wells and data will be used to further characterize the regional groundwater system
in the vicinity of the proposed Rosemont Mine. Logs for wells installed in study area, including
portions of upper Cienega Creek basin and Davidson Canyon will be reviewed and analyzed.
Pumping test results for some of the newer wells will be used to better define hydraulic properties in
the basin. If available, results from aquifer tests will be analyzed to assist with characterizing aquifer
properties in the area surrounding the mine.

         Depth to water will be measured in wells located in the study area to confirm or modify
earlier interpretations of groundwater flow direction. Outlying groundwater monitoring wells, as
shown on Figure 3, will be installed and tested.



MINE AREA GROUNDWATER CONDITIONS

         Groundwater conditions have been partially characterized via installation and testing of four
wells in the proposed pit area (Montgomery & Associates, 2007). Groundwater conditions in the
mine area will be further characterized to assist with mine permitting and design. Hydraulic
properties of subsurface materials in the mine area will be estimated through installation and testing
of additional characterization wells and piezometers, and through installation and testing of proposed
groundwater monitor wells in and around the mine area (Figure 3). Samples of groundwater
obtained during these investigations will be submitted to an Arizona-certified analytical laboratory to
establish baseline water quality using standardized tests approved by the U.S. Environmental
Protection Agency and Arizona Department of Environmental Quality. The mine area
characterization program consists of the following components:

        •   Planned groundwater monitor wells will be tested for determination of aquifer hydraulic
            properties and chemical quality of groundwater
        •   Planned additional characterization wells will be used for determination of aquifer
            hydraulic and vertical characterization of both water levels (hydrostatic head) and
            chemical quality of groundwater
                         ERROL L. MONTGOMERY & ASSOCIATES, INC.                                      10




Planned Drilling, Testing, and Monitoring

         Additional groundwater monitor wells, as shown on Figure 3, will be installed during
proposed hydrogeologic investigations of the mine area. Drilling, testing, and monitoring of these
proposed wells is presented in the preliminary Groundwater Monitoring Plan for the Rosemont
Project, as discussed in the technical memorandum dated November 5, 2007.

         Additional drilling and testing of wells and piezometers in and around the proposed pit area
will improve understanding of hydrogeologic conditions and the groundwater flow system. Three or
four hydrogeologic characterization wells, approximately 2,000 feet deep, will be installed in or
adjacent to the pit area. Four or five depth-specific groundwater samples will be obtained during well
drilling to characterize groundwater quality with depth. Rising head tests may be conducted in the
wells during drilling to estimate hydraulic conductivity.

        Three small-diameter piezometers will be constructed in a triangular pattern around each
characterization well, at distances of 50 to 100 feet from the well. Vibrating-wire pressure
transducers will be installed and grouted-in at four or five selected depths in each piezometer
borehole for monitoring of hydraulic head with depth. Pumping tests will be conducted at each
characterization well, during which time, the hydraulic head response in the pumped well and at each
transducer in the piezometers will be monitored. Hydraulic head response during drawdown and
recovery phases will subsequently be analyzed to determine aquifer hydraulic conductivity and
storage properties.



GROUNDWATER AND GEOCHEMICAL MODELING

         Planned groundwater modeling will include development of a numerical groundwater flow
model for reliable prediction of groundwater inflow to the pit (dewatering requirements), and pit
conditions after mine closure, including pit water balance, and ultimate pit lake level and water
quality. Data obtained from field hydrogeologic investigations will provide the basis for model
development. Modeled inflows will include direct precipitation, runoff, and groundwater inflow.
Modeled outflows will include evaporation and potential groundwater outflow. Stage-volume-area
relationships for the ultimate pit will be determined from the mine plan.

          Initial plans are to represent the aquifer as equivalent porous medium (EPM). Results of
hydraulic testing and initial model investigations will determine if this EPM approach is appropriate.
If not, the modeling approach may need to be revised.

         The model approach will be chiefly numerical, although some analytical/spreadsheet
modeling may be done to develop and confirm some input parameters for the numerical model. The
regional and pit model can be developed using either MODFLOW-SURFACT or FEFLOW software.
The proposed approach allows the scale dependency of the processes simulated, at both regional and
pit scales, to be represented more accurately through the use of either a telescopic mesh refinement or
local scale grid refinement in the area of the pit. The pit can be simulated using a variety of
approaches in MODFLOW (large hydraulic conductivity, large storage coefficient, or the lake
packages LAK2 or LAK3) and an equivalent approaches in FEFLOW. Model development will
                         ERROL L. MONTGOMERY & ASSOCIATES, INC.                                       11




include calibration to observed, steady-state groundwater conditions, and sensitivity analyses to
evaluate model reliability. After model calibration and sensitivity analyses are complete, the model will
be utilized to predict the amount of drawdown attributable to mine dewatering, future groundwater
inflow to the pit during and following mining operations, and the ultimate pit lake level following mine
closure to demonstrate the extent to which the pit will remain a non-discharging hydrologic sink or a
through-flowing system over the long term.

        Groundwater modeling will consist of the following tasks:

        1. A steady-state model of natural groundwater conditions will be constructed to establish
           initial conditions for subsequent transient simulations. Model parameters will be
           adjusted as necessary so that results are consistent with the conceptual hydrologic model
           and observed water levels.

        2. A transient groundwater model will be constructed to simulate drawdown caused by mine
           dewatering. Results will demonstrate that the groundwater model is a reliable simulator
           and will be used as initial conditions for predictive simulations.

        3. Aquifer response to mine dewatering will be predicted using the model. Post-closure
           recovery of groundwater levels in the mine pit and wellfield will also be predicted.

         Following completion of the groundwater flow modeling, a geochemical model package will be
used to evaluate and predict the chemical quality of pit lake water over time. If it appears that the pit
will not be a hydrologic sink in the long term, the geochemical model will be used to simulate potential
impacts from the pit lake on groundwater quality, and to evaluate options for mitigating such impacts.

        If the groundwater flow model results indicate that the mine pit lake would cause fluid
discharge to the aquifer, geochemistry data for the pit lake water will be incorporated into a
groundwater transport model to simulate migration of pit water into the aquifer. The transport model
would be used to define potential drawdown impacts to the groundwater system. The areal extent of the
model may need to be expanded, depending on potential migration of the pit lake water into the aquifer.
                        ERROL L. MONTGOMERY & ASSOCIATES, INC.                                    12




                                     REFERENCES CITED


Drewes, H., 1971, Geologic map of the Sahuarita quadrangle, southeast of Tucson, Pima
       County, Arizona: U.S. Geological Survey Miscellaneous Geologic Investigations Map
       I-613.

Finnell, T.L., 1971, Preliminary geologic map of the Empire Mountains quadrangle, Pima
         County, Arizona: U.S. Geological Survey Open File Report 71-106.

Hargis & Montgomery, 1981, Hydrology and geology of the Rosemont addendum area: prepared
       for Anamax Mining Company, July 19, 1981.

_____, 1982, Summary of hydrologic monitoring program, Empire Ranch and Rosemont areas,
        Arizona: prepared for Anamax Mining Company, May 12, 1982.

Hargis, D.R., and Harshbarger, J.W., 1976, Hydrology of the Rosemont area, Pima County,
        Arizona: Preliminary Draft of Part 1, prepared for Anamax Mining Company, October 15,
        1976.

Lohman, S.W., 1972, Ground-water hydraulics: U.S. Geological Survey Professional Paper 708.

Montgomery, Errol L., & Associates, 1985, Water adequacy report, Stage one development,
      Empirita Ranch area, Pima County, Arizona: Preliminary report, January 24, 1985.

_____, 2007, Results of drilling, construction, and testing of four pit characterization wells,
        Rosemont Project, Rosemont Copper Company, Pima County, Arizona: draft report
        prepared for Rosemont Copper Company, September 6, 2007.

Pima Association of Governments, 1998, Summary and evaluation of Cienega Creek surface
       water and groundwater monitoring program, Final Report: prepared for Pima County
       Flood Control District, February 1998.

_____, 2000, Lower Cienega basin source water study, Final Project Report: prepared for Pima
        County, October 2000.

_____, 2003, Geologic influences on the hydrology of lower Cienega Creek: prepared for Pima
        County, December 2003.

Theis, C.V., 1935, The relation between the lowering of the piezometric surface and the rate and
        duration of discharge of a well using groundwater storage: American Geophysical Union
        Transactions, Vol. 16, pp. 519-524.

University of Arizona, 1977, An environmental inventory of the Rosemont area in southern
       Arizona, Volume I: The present environment: Edited by Davis, R., and Callahan, J.R.
                                                                   TABLE 1. GROUNDWATER LEVEL DATA
                                                             FOR WELLS AND DRILL HOLES IN THE ROSEMONT AREA
                                                                          PIMA COUNTY, ARIZONA

                                                                                                              Water    Water Level
                                     ADWR                      Depth to      Measuring      Measuring         Level     Change
                   Well           Registration    Date of       Water       Point Height Point Altitude Altitude       1975-2006      Data
                                                                        a
 Well Location  Identifier          Number     Measurement   (feet, bmp)     (feet, als)b   (feet, msl)
                                                                                                        c
                                                                                                           (feet, msl)    (feet)     Sourced                    Remarks
(D-18-15)36aaa A-841               55-527004     8/13/1975           45.60             0.0         5,187.6     5,142.0       ---        H
                                                 12/4/1980           43.58             0.0         5,187.6     5,144.0      2.0        HM
                                                 1/13/1982           44.00             0.0         5,187.6     5,143.6      1.6        HM
                                                 12/4/2006            0.00             0.0         5,187.6     5,187.6     45.6       M&A      Seeping at land surface
(D-18-15)36daa    PC-4             55-214173     5/10/2007          117.23             3.2         5,118.2     5,001.0       ---      M&A      Well installed April 2007
                                                 5/17/2007          125.69             3.2         5,118.2     4,992.5       ---      M&A
                                                 5/29/2007          139.08             3.2         5,118.2     4,979.1       ---      M&A
                                                 6/25/2007          121.20             3.2         5,118.2     4,997.0       ---      M&A
(D-18-16)21abc    HV-2             55-907489     8/21/2007            9.05            1.50         4,490.0     4,481.0       ---      M&A      Well installed August 2007
                                                 9/18/2007           10.95            1.50         4,490.0     4,479.1       ---      M&A
(D-18-16)21acb1 DH-1455            55-634309    11/24/1971           54.00                ?        4,547.0     4,493.0       ---      GWSI     Located west of Hidden Valley Ranch
                                  (55-804886)   11/13/1975           44.10                ?        4,547.0     4,502.9       ---        H
                                                 12/5/1980           54.26                ?        4,547.0     4,492.7    -10.2        HM
                                                 1/18/1982           44.98                ?        4,547.0     4,502.0     -0.9        HM
                                                 4/29/2006           46.67             0.8         4,547.0     4,500.3     -2.6       M&A
                                                11/15/2006           36.91             0.8         4,547.0     4,510.1      7.2       M&A
                                                 6/25/2007           36.50             0.8         4,547.0     4,510.5      7.6       M&A
                                                 9/18/2007           36.91             0.8         4,547.0     4,510.1      7.2       M&A
(D-18-16)21acb2 HV-1               55-907488     8/21/2007              ---           1.00         4,550.0      ---          ---      M&A      Well installed August 2007
                                                 9/18/2007           55.32            1.00         4,550.0     4,494.7       ---      M&A
(D-18-16)21ada    Stock Well           ---       4/29/2006           23.15             2.3         4,474.0     4,450.9       ---      M&A
                                                11/15/2006              ---             ---        4,474.0      ---          ---      M&A      Unable to measure - Access port blocked
                                                 6/25/2007              ---             ---        4,474.0      ---          ---      M&A      Unable to measure - Access port blocked
(D-18-16)21dcd     ---                 ---       3/31/1982            37.4              ---        4,560.0     4,522.6       ---      GWSI     Location reported as (D-18-16)21ddc
                                                12/14/1987            34.5              ---        4,560.0     4,525.5       ---      GWSI     Location reported as (D-18-16)21ddc
                                                 2/14/2005            38.2              ---        4,560.0     4,521.8       ---      GWSI     Location reported as (D-18-16)21ddc
                                                 4/29/2006           40.17            0.55         4,560.0    4,519.83       ---      M&A      Unused - Equipped
                                                11/15/2006           41.14            0.55         4,560.0    4,518.86       ---      M&A      Unused - Equipped
                                                 6/25/2007           41.85            0.55         4,560.0    4,518.15       ---      M&A      Unused - Equipped
(D-18-16)22dbc     ---                 ---       3/31/1982            79.8              ---        4,508.0    4,428.20       ---      GWSI
                                                12/14/1987            73.7              ---        4,508.0    4,434.30       ---      GWSI
                                                 2/14/2005            80.5              ---        4,508.0    4,427.50       ---      GWSI
(D-18-16)29cda    G-35             55-608630     7/11/1963            0.00                ?        4,765.0     4,765.0       ---        H      Flowing at land surface
                                                 11/7/1975           55.30                ?        4,765.0     4,709.7       ---        H
                                                 4/29/2006          209.67            0.65         4,765.0     4,555.3   -154.4       M&A      Recently pumped - Still recovering
                                                  5/6/2006          142.53            0.65         4,765.0     4,622.5    -87.2       M&A      Recently pumped - Still recovering
                                                 2/14/2007           34.64            0.65         4,765.0     4,730.4     20.7       M&A
                                                 2/27/2007           29.33            0.65         4,765.0     4,735.7     26.0       M&A
                                                 6/25/2007           90.04            0.65         4,765.0     4,675.0    -34.7       M&A      Recently pumped - Still recovering



       1232/07/Tbl1_HistoricWLS.xls/30Nov2007                                         Page 1 of 3
                                                                        TABLE 1. GROUNDWATER LEVEL DATA
                                                                  FOR WELLS AND DRILL HOLES IN THE ROSEMONT AREA
                                                                               PIMA COUNTY, ARIZONA

                                                                                                                  Water       Water Level
                                    ADWR                            Depth to        Measuring    Measuring        Level        Change
                      Well        Registration   Date of             Water         Point Height Point Altitude Altitude       1975-2006      Data
                                                                             a
 Well Location      Identifier      Number     Measurement        (feet, bmp)       (feet, als)b (feet, msl)
                                                                                                            c
                                                                                                               (feet, msl)      (feet)      Source
                                                                                                                                                  d
                                                                                                                                                                     Remarks
(D-18-16)30cba    PC-1             55-906272    5/13/2007               125.78              2.8        5,263.8     5,138.0        ---        M&A     Well installed April 2007
                                                5/23/2007               126.37              2.8        5,263.8     5,137.4        ---        M&A
                                                5/29/2007               126.49              2.8        5,263.8     5,137.3        ---        M&A
                                                 6/3/2007               126.39              2.8        5,263.8     5,137.4        ---        M&A
                                                 6/8/2007               126.41              2.8        5,263.8     5,137.4        ---        M&A
                                                6/25/2007               126.50              2.8        5,263.8     5,137.3        ---        M&A
(D-18-16)30cdc    PC-2             55-214214      2/XX/07                  0.00            3.03        5,118.0     5,118.0        ---        M&A     Well installed February 2007 - Flowing
                                                5/13/2007                  0.00            3.03        5,118.0     5,118.0        ---        M&A     WL above land surface - Sealed (7.0 psi)
                                                5/21/2007                  0.00            3.03        5,118.0     5,118.0        ---        M&A     WL above land surface - Sealed (7.0 psi)
                                                5/30/2007                  0.00            3.03        5,118.0     5,118.0        ---        M&A     WL above land surface - Sealed
                                                6/25/2007                  0.00            3.03        5,118.0     5,118.0         ---       M&A     WL above land surface - Sealed
(D-18-16)30cdd    A-886 (?)              ---    11/15/2006                30.30            1.15        5,077.0     5,046.7         ---       M&A     Unused - Capped
                                                 5/14/2007                26.55            1.15         5,077.0    5,050.5         ---       M&A     Unused - Capped
                                                 5/21/2007                27.12            1.15         5,077.0    5,049.9         ---       M&A     Unused - Capped
                                                 5/25/2007                25.65            1.15         5,077.0    5,051.4         ---       M&A     Unused - Capped
                                                 6/25/2007                25.70            1.15         5,077.0    5,051.3         ---       M&A     Unused - Capped
(D-18-16)31bbc     PC-3             55-214212    5/31/2007              150.64             3.84         5,115.8    4,965.2         ---       M&A     Well installed April 2007
                                                  6/8/2007              152.40             3.84         5,115.8    4,963.4         ---       M&A
                                                 6/25/2007              149.62               1.3        5,113.3    4,963.7         ---       M&A
(D-18-16)31bbd     AR-2050               ---    11/16/2006                45.38              2.8        5,110.0    5,064.6         ---       M&A     Piezometer
                                                  5/9/2007                52.36              2.8        5,110.0    5,057.6         ---       M&A     Piezometer
                                                 5/30/2007                54.55              2.8        5,110.0     5,055.5        ---       M&A     Piezometer
                                                 5/31/2007                52.80              2.8        5,110.0     5,057.2        ---       M&A     Piezometer
                                                  6/3/2007                55.35              2.8        5,110.0     5,054.7         ---      M&A     Piezometer
                                                  6/8/2007                56.80              2.8        5,110.0     5,053.2         ---      M&A     Piezometer
                                                 6/26/2007                57.28              2.8        5,110.0     5,052.7         ---      M&A     Piezometer
(D-18-16)31cbb     AH-8             55-532115     5/6/2006               107.60              0.6        4,933.7     4,826.1         ---      M&A     Unused - Equipped
                                                11/16/2006               107.50              0.6        4,933.7     4,826.2         ---      M&A     Unused - Equipped
                                                   5/9/2007              108.03              0.6        4,933.7     4,825.7         ---      M&A     Unused - Equipped
                                                 5/17/2007               108.24              0.6        4,933.7     4,825.5         ---      M&A     Unused - Equipped
                                                   6/8/2007              108.32              0.6        4,933.7     4,825.4         ---      M&A     Unused - Equipped
                                                 6/25/2007               107.96              0.6        4,933.7     4,825.7         ---       M&A    Unused - Equipped
(D-18-16)32bdc     Gayler           55-564306     -- / -- /1966            94.00               ?       4,860.58     4,766.6         ---      Driller
                                                 8/11/1975                 93.88             0.7       4,860.58     4,766.7         ---        H
                                                  4/29/2006                59.86             0.1       4,860.58     4,800.7       34.0        M&A    Unused - Equipped
                                                 11/15/2006                64.72             0.1       4,860.58     4,795.9       29.2        M&A    Unused - Equipped
                                                  6/25/2007                >155'             0.1       4,860.58      ---             ---      M&A    Unused - Equipped




       1232/07/Tbl1_HistoricWLS.xls/30Nov2007                                                Page 2 of 3
                                                                     TABLE 1. GROUNDWATER LEVEL DATA
                                                               FOR WELLS AND DRILL HOLES IN THE ROSEMONT AREA
                                                                            PIMA COUNTY, ARIZONA

                                                                                                             Water      Water Level
                                      ADWR                       Depth to      Measuring    Measuring        Level       Change
                        Well        Registration   Date of        Water       Point Height Point Altitude Altitude      1975-2006      Data
                                                                          a
    Well Location     Identifier      Number     Measurement   (feet, bmp)     (feet, als)b (feet, msl)
                                                                                                       c
                                                                                                          (feet, msl)     (feet)      Source
                                                                                                                                            d
                                                                                                                                                               Remarks
(D-18-16)32ccb      DH-1537          55-608627    11/13/1975            9.5            0.9          4,931.0   4,921.5        ---        H
                                                   3/31/1982          78.54             ---         4,931.0   4,852.5      -69.0       GWSI
                                                  12/14/1987          55.04             ---         4,931.0   4,876.0      -45.5       GWSI
                                                   2/14/2005           37.6             ---         4,931.0   4,893.4      -28.1       GWSI
                                                    5/6/2006          38.12            0.9          4,931.0   4,892.9      -28.6       M&A      Unused - Equipped
                                                  11/15/2006          38.44            0.9          4,931.0   4,892.6      -28.9       M&A      Unused - Equipped
                                                   6/25/2007          38.03            0.9          4,931.0   4,893.0      -28.5       M&A      Unused - Equipped
(D-18-16)34bda      DH-1497                ---      8/7/1975          133.4             ---         4,775.6   4,642.2        ---         H
                                                   1/19/1982         132.23             ---         4,775.6   4,643.4       1.2         HM
                                                   3/31/1982          131.0             ---         4,775.6   4,644.6       2.4        GWSI
                                                  12/15/1987          129.4             ---         4,775.6   4,646.2       4.0        GWSI
                                                   2/14/2005          130.1             ---         4,775.6   4,645.5       3.3        GWSI
(D-19-16)04dbb      DH-1541                ---    11/12/1975          407.8             ---         5,180.0   4,772.2         ---        H
                                                   1/14/1982         409.51             ---         5,180.0   4,770.5       -1.7        HM
                                                   3/29/1982          407.8             ---         5,180.0   4,772.2        0.0       GWSI     Location reported as (D-19-16)04dbd
                                                  12/11/1987          405.5             ---         5,180.0   4,774.5        2.3       GWSI     Location reported as (D-19-16)04dbd
                                                   2/14/2005          405.3              ---        5,180.0   4,774.7        2.5       GWSI     Location reported as (D-19-16)04dbd


a
  feet, bmp = feet below measuring point
b
  feet, als = feet above land surface
c
  feet, msl = feet above mean sea level
d
  Data Source:       H = Hargis and Harshbarger (1976)
                     HM = Hargis & Montgomery (1981, 1982)
                     M&A = Errol L. Montgomery & Associates
                     GWSI = Groundwater Site Inventory Database, Arizona Dept. of Water Resources




         1232/07/Tbl1_HistoricWLS.xls/30Nov2007                                         Page 3 of 3
                                                         TABLE 2. MONITORING DATA FOR SPRINGS
                                                            IN THE ROSEMONT PROJECT AREA
                                                                  PIMA COUNTY, ARIZONA


                                                                                     Specific
                                                                                    Electrical
                                                            Spring       Spring    Conductance       Water
                                                          Elevation     Discharge    of Water  Water Temp     Data
Spring Location Spring Identifier               Date     (feet, msl)c     (cfs) b
                                                                                       (µS)  c
                                                                                                pH   (ºC)d   Sourcee                Remarks
(D-18-16)14cab Barrel                        11/1/2007       4,270         <0.01        660     7.5   21.2    M&A      Small seep
(D-18-16)16ccc Scholefield No. 1            11/13/1975      4,680          <0.01        680     7.1   12.8     H
               (SC-1)                        6/25/2007      4,680             0.0        ---     ---   ---    M&A      No flow - ground dry
                                             11/1/2007      4,680             0.0        ---     ---   ---    M&A      No flow - ground dry
(D-18-16)17adb     Scholefield No. 2        11/13/1975      4,800          <0.01        600     6.9   15.6     H
                   (SC-2)                                   4,800             0.0        ---     ---   ---    M&A      No flow - ground moist
(D-18-16)17caa     Scholefield No. 3        11/13/1975      5,200          <0.01        560     7.5   12.8     H
                   (SC-3)                                   5,200             0.0        ---     ---   ---    M&A      No flow - ground dry
(D-18-16)19cdd     McCleary No. 2            11/7/1975      5,100           ?           900      --- 11.1      H
                   (MC-2)                   11/15/2006      5,100             0.0        ---     ---   ---    M&A      No flow - ground moist
                                             6/25/2007      5,100             0.0        ---     ---   ---    M&A      No flow - ground moist
                                            10/31/2007      5,100             0.0        ---     ---   ---    M&A      No flow - ground moist
(D-18-16)27ddd     Questa                   10/31/2007      4,601          <0.01      1,610     8.7  18.9     M&A      Small pond present
(D-18-16)30abc     McCleary No. 1            8/11/1975      4,980              ---      660      --- 18.9      H
                   (MC-1)                    11/7/1975      4,980          <0.01        680     7.3  13.9      H
                                            11/16/2006      4,980          <0.01         ---     ---   ---    M&A      Flowing - trickle
                                             12/7/2006      4,980             0.0        ---     ---   ---    M&A      Ground moist
                                             6/25/2007      4,980             0.0        ---     ---   ---    M&A      No flow - ground dry
                                            10/31/2007      4,980          <0.01       710      7.2  17.8     M&A      Small seep
(D-18-16)32bbc     Rosemont Spring          11/13/1975      4,920           0.01       470      7.2  19.4      H
                                            10/31/2007      4,920          <0.01       510      7.5  12.9     M&A      Estimated flow 1 to 2 gpm


a
  feet, msl = feet above mean sea level.
b
  cfs = cubic feet per second
c
  µS = microsiemens at 25º Celsius
d
  ºC = degrees Celsius
e
  Data Source:      H = Hargis and Harshbarger (1976)
                    M&A = Errol L. Montgomery & Associates



    1232/02/Tbl2_SpringData.xls/30Nov2007
                                TABLE 3. RESULTS OF LABORATORY CHEMICAL ANALYSES FOR COMMON CONSTITUENTS AN3
                                              ROUTINE PARAMETERS FOR GROUNDWATER SAMPLES FROM
                                                 WELLS AND BOREHOLES, ROSEMONT PROJECT AREA
                                                             PIMA COUNTY, ARIZONA


                                                                                                                                                               Field
                                                        ………………………...……..........COMMON CONSTITUENTS (mg/L)a……………….....…....….………...                                             pH
                                     SAMPLE                                                                                                                     EC                          TEMP
                                                                                                                                                                        b
       WELL IDENTIFIER                DATE        LAB ID    Ca     Mg       Na       K      CO3     HCO3      Cl      SO4     NO3/NO2    F      TDS          (µmho/cm)      Field    Lab    (ºC)c
(D-18-15)36aaa[A841]                 12/07/06   L60282-01   93.4   13.6     8.7     2.2     <20      234     11.0      60       0.07     0.5           370        545       7.41     8.1    17.1
(D-18-15)36daa[PC-4]                 05/18/07   L62751-01   59.6   17.9    32.9     4.1     <20      264     12.0       50*     0.63     0.4*          320        560       7.76     8.1    21.5
(D-18-16)21abd[HV-2]                 09/18/07   L65117-02   98.8    6.4    93.9     1.3     <20      259     49.0     110       4.88     0.9           520        840       6.97     8.2    21.7
(D-18-16)21acb[HV-1]                 09/18/07   L65117-01   85.4   12.3    95.3     2.0     <20      285     19.0     180      <0.02     0.4           590        860       7.47     8.2    23.1
                                     11/13/75       ---      85     3.4     96      4.6     <20      281     10.6      44       <0.5     2.8           377        570        7.4      ---    20
(D-18-16)21bda[DH-1455]
                                     01/18/82       ---      ---    ---     ---     ---      ---      ---     ---      ---       ---     ---         ---          600        7.3      ---    17
(D-18-16)29bbd[P-899]                01/18/82       ---      ---    ---     ---     ---      ---      ---     ---      ---       ---     ---         ---          760       7.35      ---    22
                                     11/13/75       ---     49.0    3.2    111      4.7       0     146.0    14.9     228       5.95     0.8           500        740        7.5      ---   20.6
(D-18-16)29cda[G-35]                 01/18/82       ---      ---    ---     ---     ---      ---      ---     ---      ---       ---     ---         ---          690       7.45      ---    22
                                     12/07/06   L60282-02   44.3    2.3    106      1.6     <20       95      6.0     240      <0.02     0.4           458        670       8.19     8.2      ---
(D-18-16)30cba[PC-1]                 05/25/07   L62859-01   82.2    9.5    10.7     1.9     <20      212      8.0       30*    0.69      0.8           300        469       7.75     8.3    22.0
(D-18-16)30cdc[PC-2]                 05/16/07   L62687-01    87    20.6    20.3     2.6     <20      194     11.0     170      0.38      1.2           410        613       7.72     8.1    23.7
(D-18-16)31bbc[PC-3]                 06/01/07   L62992-01   192    33.4    56.3     5.0     <20      123      5.0     610      0.09      1.2        1,040       1,220       7.66     8.0    24.2
                                     11/13/75       ---      41     7.9     62      4.7       0      226     12.8     55       17.1     0.67           330        530        7.4      ---   18.3
(D-18-16)32bdc[Gayler]
                                     01/19/82       ---      ---    ---     ---     ---      ---      ---     ---      ---       ---     ---         ---          540       7.65      ---    16

a
    COMMON CONSTITUENTS, in milligrams per liter
       Ca = Calcium         K = Potassium                                         Cl = Chloride                      F = Fluoride                                       < = Less than
       Mg = Magnesium       CO3 = Carbonate                                       SO4 = Sulfate                      TDS = Total Dissolved Solids                      --- = No value reported
       Na = Sodium          HCO3 = Bicarbonate (as HCO3)                          NO3/NO2 = Nitrate + Nitrite (as N)
b
    EC (µmho/cm) = Electrical conductance, in microsiemens (field measurement)

c
    TEMP (ºC) = Water temperature, in degrees Celsius




    1232/07/Tbl3_CommonConstit.xls/30Nov2007
                                                                           TABLE 4. RESULTS OF LABORATORY CHEMICAL ANALYSES FOR
                                                                             TRACE CONSTITUENTS IN GROUNDWATER SAMPLES FROM
                                                                               WELLS AND BOREHOLES, ROSEMONT PROJECT AREA
                                                                                            PIMA COUNTY, ARIZONA




                              SAMPLE                         …..………..………………………...…….……………….……….……...…...TRACE CONSTITUENTS (mg/L)a……..………………….……...………….………...………...………...……..
   WELL IDENTIFIER              DATE         LAB ID       Al      As      B     Ba      Be      Cd     Cr    CN    Co     Cu    Fe     Hg     Mn   Mo       Ni    Pb      Sb      Se      Tl      U     Zn
(D-18-15)36aaa[A841]           12/07/06   L60282-01    <0.03 0.001        ---  0.063 <0.0001 <0.0001 <0.01 <0.005 <0.01 <0.01  2.67 <0.0002 0.159  0.02  <0.01 <0.0002 <0.0004 0.0004 <0.0001 0.0019 0.02
(D-18-15)36daa[PC-4]          05/18/07    L62751-01      0.04* 0.0023    ---  0.183 <0.0001 <0.0001 <0.01 <0.005 <0.01 <0.01   0.96 <0.0002 0.565  0.03* <0.01 0.0002* 0.0005* 0.0006 <0.0001 0.0064 0.61
(D-18-16)21abd[HV-2]          09/18/07    L65117-02      0.1    0.0011   ---   0.05 <0.0001 <0.0001 <0.01    ---  <0.01 <0.01  1.16 <0.0002 0.075 0.01   <0.01 0.0005 <0.0004 0.0016 <0.0001 0.0130 0.01
(D-18-16)21acb[HV-1]          09/18/07    L65117-01     0.51 0.0033      ---  0.077 <0.0001 <0.0001 <0.01    ---  <0.01 <0.01  0.84 <0.0002 0.069 0.04   <0.01 0.0049 0.0014 0.0003 <0.0001 0.0040 0.08
(D-18-16)21bda[DH-1455]       11/13/75         ---              <0.01  0.11      ---     ---     ---   ---    ---   --- <0.01 <0.05 <0.001 <0.01  <0.1      --- 0.008      ---   0.09     ---     --- 0.11
                              11/13/75        ---               <0.01  0.24      ---    ---     ---    ---   ---    --- <0.01  0.12  <0.001 0.11  <0.1     ---  0.002     ---   0.02     ---     ---  0.24
(D-18-16)29cda[G-35]
                              12/07/06    L60282-02    <0.03 0.0194      ---  0.017 <0.0001 <0.0001 <0.01 <0.005 <0.01 <0.01 <0.02 <0.0002 0.068  0.08   <0.01 0.0002* <0.0004 0.0004 <0.0001 0.0327 0.05
(D-18-16)30cba[PC-1]          05/25/07    L62859-01     0.03* 0.0028     ---  0.015 <0.0001 0.0002* <0.01 <0.005 <0.01 <0.01 <0.02 <0.0002 0.046  0.03* <0.01 0.0002* <0.0004 0.0018 <0.0001 0.0016 0.35
(D-18-16)30cdc[PC-2]          05/16/07    L62687-01    <0.03 0.0154     ---   0.010* <0.0001 0.0002* <0.01 <0.005 <0.01 <0.01 <0.02 <0.0002 0.053 0.13   <0.01 0.0001* 0.0009* 0.0044 <0.0001 0.0040 0.39
(D-18-16)31bbc[PC-3]          06/01/07    L62992-01    <0.03 0.0038     ---   0.058 <0.0001 <0.0001 <0.01 <0.005 <0.01 <0.01   0.43 <0.0002 0.671 0.13   <0.01 0.0001* <0.0004 0.0006 <0.0001 0.0159 0.56
(D-18-16)32bdc[Gayler]        11/13/75        ---               <0.01  0.11     ---     ---     ---   ---    ---   ---  <0.01 <0.05 <0.001 <0.01  <0.1     ---   0.01     ---  <0.01     ---     ---  0.11


a
    TRACE CONSTITUENTS, in milligrams per liter
        Al = Aluminum                     Cd = Cadmium                        Cu = Copper               Mo = Molybdenum             Se = Selenium                  < = Less than
        As = Arsenic                      Cr = Cromium                        Fe = Iron                 Ni = Nickel                 Tl = Thallium                 --- = No value reported
        B = Boron                         CN = Cyanide                        Hg = Mercury              Pb = Lead                   U = Uranium
        Ba = Barium                       Co = Cobalt                         Mn = Manganese            Sb = Antimony               Zn = Zinc
        Be = Beryllium

* = Detected concentration is between the minimum detection limit and practical quantitation limit




             1232/07/Tbl4_TraceConstit.xls/30Nov2007
                             TABLE 5. RESULTS OF LABORATORY CHEMICAL ANALYSES FOR COMMON CONSTITUENTS AND
                                               ROUTINE PARAMETERS FOR WATER SAMPLES FROM
                                                    SPRINGS IN ROSEMONT PROJECT AREA
                                                          PIMA COUNTY, ARIZONA


                                                                                                                      Field
                                          ………………………...……..........COMMON CONSTITUENTS (mg/L)a……………….....…....….………...            pH
                                    SAMPLE                                                                             EC                                               TEMP
                                                                                                                            b
             SPRING IDENTIFIER       DATE   Ca  Mg    Na         K    CO3  HCO3    Cl    SO4 NO3/NO2    F     TDS (µmho/cm) Field Lab                                    (ºC)c
         (D-18-16)16ccc[SC-1]       11/13/75     98     12.4     38       3.3     <20      421     13.8       18       <0.5      0.70     433   620       7.1     ---    12.8

         (D-18-16)17adb[SC-2]       11/13/75     87     13.2     30       2.7     <20      363        9.6     28       1.67      0.96     393   640       6.9     ---    15.6

         (D-18-16)17caa[SC-3]       11/13/75     67      21      45       2.5     <20      359     15.9       37       0.81      0.77     410   590       7.5     ---    12.8

         (D-18-16)19ccd[MC-2]       11/07/75     ---     ---      ---     ---      ---      ---       ---     ---          ---    ---     ---   900        ---    ---    11.1

         (D-18-16)30abc[MC-1]       11/07/75     85      22      26       2.9     <20      314     12.7       84      2.54       0.88     453   680       7.3     ---    13.9
         (D-18-16)32bbc
                                    11/13/75     73      9.4     13.0     4.2     <20      272     20.5       <5       0.8       0.5      283   480       7.2     ---    19.4
         [Rosemont Spring]


         a
             COMMON CONSTITUENTS, in milligrams per liter
                 Ca = Calcium      K = Potassium                        Cl = Chloride                       F = Fluoride                              < = Less than
                 Mg = Magnesium CO3 = Carbonate                         SO4 = Sulfate                      TDS = Total Dissolved Solids               --- = No value reported
                 Na = Sodium    HCO3 = Bicarbonate (as HCO3)            NO3/NO2 = Nitrate + Nitrite (as N)

         b
             EC (µmho/cm) = Electrical conductance, in micromhos per centimeter (field measurement)
         c
             TEMP (ºC) = Water temperature, in degrees Celsius




1232/07/Tbl5_CommonConstit.xls/30Nov2007
                                                                    TABLE 6. RESULTS OF LABORATORY CHEMICAL ANALYSES FOR
                                                                     SELECTED TRACE CONSTITUENTS IN WATER SAMPLES FROM
                                                                               SPRINGS IN ROSEMONT PROJECT AREA
                                                                                     PIMA COUNTY, ARIZONA




                            SAMPLE              …..………..………………………...…….……………….……….……...…...TRACE CONSTITUENTS (mg/L)a……..………………….……...………….………...………...………...……..
    SPRING IDENTIFIER        DATE         Al        As    B  Ba   Be    Cd  Cr   CN     Co     Cu     Fe    Hg     Mn     Mo  Ni   Pb    Sb  Se     Tl    U       Zn
(D-18-16)16ccc[SC-1]        11/13/75      ---     <0.01   <0.01     ---    ---     ---   ---     ---    ---      <0.01   <0.05    <0.001 <0.01     <0.1   ---   0.004      ---     0.01    ---   ---   0.05

(D-18-16)17adb[SC-2]        11/13/75      ---     <0.01   <0.01     ---    ---     ---   ---     ---    ---      <0.01   0.07    <0.001 <0.01      <0.1   ---   0.002      ---    <0.01    ---   ---   0.09

(D-18-16)17caa[SC-3]        11/13/75      ---     <0.01   <0.01     ---    ---     ---   ---     ---    ---      <0.01   <0.05   <0.001 <0.01      <0.1   ---   <0.001     ---    <0.01    ---   ---   0.02

(D-18-16)30abc[MC-1]        11/07/75      ---     0.01    0.02      ---    ---     ---   ---     ---    ---      0.03    0.05      ---     <0.01   <0.1   ---   0.002      ---    <0.01    ---   ---   0.07
(D-18-16)32bbc
                            11/13/75      ---     <0.01   0.02      ---    ---     ---   ---     ---    ---      <0.01   0.07     <0.001    1.2    <0.1   ---   0.006      ---    <0.01    ---   ---   0.02
[Rosemont Spring]

a
    TRACE CONSTITUENTS, in milligrams per liter
         Al = Aluminum                 Cd = Cadmium               Cu = Copper                  Mo = Molybdenum                   Se = Selenium                    < = Less than
         As = Arsenic                  Cr = Cromium               Fe = Iron                    Ni = Nickel                       Tl = Thallium                   --- = No value reported
         B = Boron                     CN = Cyanide               Hg = Mercury                 Pb = Lead                         U = Uranium
         Ba = Barium                   Co = Cobalt                Mn = Manganese               Sb = Antimony                     Zn = Zinc
         Be = Beryllium




        1232/07/Tbl6_TraceConstit.xls/30Nov2007
                                                                                                                                                                                                                                                                                                                                              RP-7



                                 Cb        Dm
                                                            PPe                                                                                                                                                                                                                                                                                                                                             Ksu
                                                                                                                                                                                                                                                                                                                                                                                                                                                       EXPLANATION                                           Well Symbols
                                                                                                                                                                                                                                                                                                                                      Ksu                                                                                                     Ks
                                                                                                          Pr                                                                                                                                                       Scholefield Spring
                                                                                                                                                                     Ks
                                                            Qal
                                                                                                                                                                                                                                                                                                                                                             Tsp                                                                                                   Powerline                                          Existing Pit Characterization Well
                                             Cb                                                                   Pcn
                          Dm         Ca
                                                                                                                               Pr
                                PCc Cb
                                       d
                                                                                   Psl
                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Roads                                              Other Existing Water Well or Borehole
                         m Ca                                           Qal                                                                                                                                                                                                                               21abd[HV-2]
                                                                                                                                                                                                                                                                                                             4,474                                                                                                             Kt
                                  d
                                             Cb        Ph
                                                                                                                                                                                                                                                                                                                                                                                                                                         Ks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Rosemont Fee Land                                  Existing Piezometer
                                                                                                                                                                                                                                                                                                                                                                   Tsp
                                                                                                                                                                                                                                                                         21bda[DH-1455]
                           pCc                           Ph                                                                                                                                                           Ksu                                                    4,510                                      21ada
                                                                                                                                                                                                                                                                                                                        4,451                                                                                                                                      Rosemont Patented Mining Claims                    Proposed Shallow Groundwater Monitor Well
                                                                                                                                                                                                                                                                                                                                                     Tsp
                                                                                                                                                                                                                                    Approximate Extent of                    21acb[HV-1]                                                                                                                     Ks
                                      Ca
                                                                                                                                                                                                                                      Waste Rock and
                                                                                                                                                                                                                                                                                4,495
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Proposed Groundwater Monitor Well
                                           Me Ca
                                                                                                                                                Kw                                                                                  Tailing Disposal Area                                                                                                                                                                                          A       A'
                                                                                                                        Qal
                                                                                                                                                                                                                                                                                                                                                                                    Kt
                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Line of Cross-Section                              Proposed Deep Groundwater Monitor Well
                                                                                                                                                                                                                                                                                                                                Tsp
                                                                                              Tql
                                                                  Cb                                                                                                                                  Ksu                                                                                                                                                                                        Ks
                                             pCc
                                                                      Qal                                                                                                                                                                                                                                                                            22dbc
                                                                              Ca                                                                                                                                                                                                                                                                     4,428
                                                                                                                                                                                                                                                                                                                                Tsp
                                                                       Cb
                                                                                                                                                                                                                                                                                                                                                                           Ks                                                       Kt

                                                                              d                                         Pr
                                                                                                                                                      MC-2
                                                                                                                                                                     Approximate
                                                                                                                                                                                                                                                                                                                                                                                                                    23dcc1,2
                                                                                                                                                                                                                                                                                                                                                                                                                                                       Geologic Units
                                                                                                         QTg                                                           Extent of                                                                                                                          Qal
                                                                                                                                                                                                                                                                                                                                                                                                                      4,359
                                                                                                                                         RP-1                                                                                                                                                                   21dcd
                                                                                                    d
                                                                                                                                                                    Plant Boundary                   Kw                                                                                                         4,518                                                                                       Qal
                                                                                                                                                           Kw
                                                                                                                                                                                Kw                                                                                                            RP-2C
                                                                                                                                                                                                                                                                                                                                                                                                                                                           d        Disturbed                                 Pr       Rainvalley Formation
                                                                                                                         Qal                                                                                                                                                                                  RP-2A                   Tsp
                                                                                         Ca                                                                                                Ka
                                                   Tgr                                                                                                          MC-1
                                                                                                                                                                                               29bbd[P-899]
                                                                                                                                                                                                                             Ksu
                                                                                                                                                                                                                                                                                        Qal
                                                                                                                                                                                                                                                                                                      RP-2B
                                                                                                                                                                                                                                                                                                                                                                                                                                                         Qal       Recent Alluvium including stream and       Pcn      Concha Limestone
                                                                                         Ca
                                                                                            Psl
                                                                                                                               Kw
                                                                                                                                                                                                  4,824                                                                                                                                                                                                                                                            talus deposits and piedmont gravels
                                                                                  PCc
                                                                                         Pe
                                                                                            Psl
                                                                                                           Pcn                                                                                                                                                                                 Ksu                                                                                                                                                       Qtg        Basin-Fill Deposits                      Ps/Psl    Scherrer Formation
                                                      pCc                                                                                                      Kw         QTg Qal
                                                                                   Cb
                                                                                     Ca
                                                                      pCc                                                                                                                                            Ksu                                                                                                                                                                                                                                 Tsp        Pantano Formation                         Pe       Epitaph Formation
                                                                                                                                                                                                          TKa                                                                                                                                                                                         Ksu

                                                                                                         Qal                                                           Kw

                                                                            Qal
                                                                                                                             PC-1
                                                                                                                             5,137                                   QTg
                                                                                                                                                                                          Kw                           QTg
                                                                                                                                                                                                                                                                                                                                                                           Tsp                                                                           Twt        Welded Tuff                               Pc       Colina Limestone
                                                                                                                                                     QTg                                                                                                                  Twt
                                                            Cb
                                                                                                                                                                                                                Ka
                                       Qal                                                                                                                                                                                                                                                                                                                                                                                               Kw             Tgr/Tga    Grandiorite Quartz Monzonite (Tgr)
                                                                                              Kw                                     PC-2                                                                                  29cda[G-35]                                       Qal                                                                                                                                                                                   and Aplite (Tga)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              PPe      Earp Formation
                                                      Cb                                                                                        30cdd[A-886]
                                                                                                                                     5,118                                                       d                            4,765
                                                                                   QTg                                                             5,053
                                                         Qal                                                     Kw                                                                                                                   Ksu
                                                                 Ca                           QTg         Tql                  QTg
                                                                                                                                                                                                                                                                                                                                                                                 Questa Spring                                                            Tql       Quartz Latite Porphyry                    Ph       Horquilla Limestone
                                      Cb                                                                        Tql                                                                                                                                                                                                                                                      RP-6
                                                                       Pcn                  Kw       Tql                                                                                                                                 Twt
                                                                                                                                    Ka
                                                                                                                                                                                                                             Ka
                                                                                                          36aaa[A-841]                                                                               Ka                                                                                                                                                                                                                                                  Ksu        Salero Formation, Undivided               Me       Escabrosa Limestone
                                                                                                             5,116                                                                                                                                                                                                                                                                                                       Ks
                                                                                         QTg                                                                                                                                                                                                                                                                                                                                        Ka
                                                                                                                               AR-2050
                                                                                                                                5,046
                                                           Me
                                                                                              Kw
                                                                                                                                                                                     Kw
                                                                                                                                                                                                                                                            RP-3                                                                                                                                                                                          Kt        Turney Ranch Formation                    Dm       Martin Formation
                                                                                                   Tql
                                             Qal                                                                      PC-3                                                                Rosemont Spring
                                                                                                                                                                                                                                                                                                                                                                           QTg
                                                                                                                      4,965          QTg
                                                                                  Pe
                                                                                              Qal
                                                                                                                                                                                                          Ka                                                                                                                                                                                                                                  Ka          Ks        Shellenberger Canyon Formation            Ca       Abrigo Formation
                                                                                                                                                                                                                                                                                                                                            34bda[DH-1497]
                                                                                                                  31cbb[AH-8]                                                                                                                                                                                                                   4,645
                                                                                                                     5,054                                                                     32bdc[Gayler]
                                                                                   Pcn
                                                                                                         PC-4                                                                                      4,811
                                                                                                                                                                                                                                                                                                                                                                                                                                                          Ka        Apache Canyon Formation                   Cb       Bolsa Quartzite
                                                                                                         5,116
                                                                  Pe                                                                                       Ka
                                                                                                                                                                                                                              RP-4A                                                                                                                                                                                                                       Kw        Willow Canyon Formation                   pCc      Continental Granodiorite
                                                                                                                                                                                                                               RP-4B
                                                                                   Pe
                                                                       Pcn                                                                                                                                                                                                                                                                                                                                                                              Kg/Kgb
                                                                                                                                                                                                                                                                                                                                                                                                                                                                    Glance Conglomerate (Kg) and
                                   Cb           Qal
                                                                                   Psl         Qal
                                                                                                                                                                                                                                                                                                                                                                                                                                                                    Basalt Flow (Kgb)
                                                                                                                         Approximate                                                       32ccb[DH-1537]
                            PCc                                                                                                                                                                4,893
                                                                                                                          Extent of
                                                                                                                         Ulitmate Pit
                                                                                       Pe


                                                                        Kg

                                                                                                                                                                          QTg


                                                                                                                                                                                                                                                                                                     83


                                                      Ph

                                                                              Ka
                                                                                                                                                                                                                             RP-5
                                  Kg
                                                                                                                                                                                                                                                                                   4dbb[DH-1541]
                          Ca                                                                                                                                                                                                                                                           4,775
                                                                                    Kg

                                                                                                                                                                                                                                                                                                                                                                                                                  QTg


                          Cb
                                                                                                                                                                                                                                                             QTg


                                                                              Kg

                                                            Kw
                                                                                                                                                                                                                                                                                                                                                                                                                                                               0        1,500     3,000      4,500   6,000                    GEOLOGIC MAP
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Feet
                                  PCc
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           2007




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      December 5, 2007                Figure 1




TUC-GIS\1232.01\NAD83_UTM_maps\PropertyControl\Geology_DETAIL\05Dec2007
                                                                                                                                                                                                                                                                                                                                                    EXPLANATION
                                                                                                                                                                                                                                                                                                                                                              Powerline
                                                                                                                                                                                                                                                                                                                                                              Roads
                                                                                                                                                                                                                                                                                                                                                               Rosemont Claim Boundary
                                                                                                                                                                                                                                                                                                                                                               Rosemont Patented Mining Claims
                                                                                                                                                                                                                                                                                                                                                               Rosemont Fee Land

                                                                                                                                                                                             E SC-2
                                                                                                                                                                                                                                                                                                                                                               Coronado National Forest Boundary

                                                                                                                                                                                   E    SC-3
                                                                                                                                                                                                                                                                                              RP-7
                                                                                                                                                                                                                                                                                                                          E    Barrel Spring
                                                                                                                                                                                                                                                                                                                                                               Santa Rita Experimental Range Boundary
                                                                                                                                                                                                                                                                                          !
                                                                                                                                                                                                                                                                                          (                                                         4,000      Groundwater Level Altitude Contour, in feet msl

                                                                                                                                                                                                    Scholefield Spring   E                                                                                                                          AR-2050
                                                                                                                                                                                                                                                                                                                                                               General Direction of Groundwater Movement
                                                                                                                                                                                                                                                                                                                                                     5,046
                                                                                                                                                                                                                                                                         21ada                                                                                  Water Level Altitude, 2005-2007
                                                                                                                                                                                                                                                         2
                                                                                                                                                                                                                                                         %               4,451
                                                                                                                                                                                                                                                   21abd[HV-2]       2
                                                                                                                                                                                                                                                                     %
                                                                                                                                                                                                                                          2
                                                                                                                                                                                                                                          %
                                                                                                                                                                                                                         21bda[DH-1455]
                                                                                                                                                                                                                             4,510        2
                                                                                                                                                                                                                                          %           4,474

                                                                                                                                                                                                                               21acb[HV-1]

                        Sa
                                                                                                                                                                                                                                  4,495                                                                                                             Land Ownership Categories
                           nt
                              a                                                                                                                                                                                                                                                               4,4
                                  Ri
                                    ta
                                         Ro
                                                                                                                                                                                                                                                                                                  00                                                          Bureau of Land Management
                   Helv
                       etia
                              Roa
                                              ad                                                                                     Approximate                                                                                                                                         2
                                                                                                                                                                                                                                                                                         %
                                                                                                                                                                                                                                                                                          22dbc
                                                                                                                                                                                                                                                                                                                                                              Forest Land
                                                                                                                             E
                                     d                                                                                  MC-2           Extent of
                                                                                                                                                                                                                                                                                          4,428
                                                                                                                        5,100       Plant Boundary                                                                                                           21dcd
                                                                                                                                                                                                                                                                                                                                         23dcc1,2
                                                                                                                                                                                                                                                                                                                                           4,359

                                                                                                                  !
                                                                                                                  (
                                                                                                                      RP-1
                                                                                                                                                                                                                                                         2
                                                                                                                                                                                                                                                         %
                                                                                                                                                                                                                                                             4,518
                                                                                                                                                                                                                                                                                                                                      2
                                                                                                                                                                                                                                                                                                                                      %                       Private Land
                                                                                                                                                                                                                                                  ?!!
                                                                                                                                                                                                                                                    <
                                                                                                                                                                                                                                                  ! ( RP-2A
                                                                                                                                        E
                                                                                                                                        MC-1                                                                                              RP-2C
                                                                                                                                                              29bbd[P-899]
                                                                                                                                                                                                                                                                                                                                                              State Trust Land
                       Experimental Range




                                                                                                                                        4,980                    4,824                                                                            RP-2B

                                                                                                                                                                      2
                                                                                                                                                                      %                                                                                                                      4,5
                                                                                                                                                                                                                                                                                                   00

                                                                                                                                                                                                                                                                                                                                                    Well Symbols
                           Santa Rita




                                                                                                                                                                                                                                                                          4,6
                                                                                                                                                                                                                                                                              00
                                                                                                                                                                                                                                                                                                                                                       *
                                                                                                                                                                                                                                                                                                                                                       #      Existing Pit Characterization Well
                                                                                                            PC-1 #
                                                                                                                 *                                                                                                           Approximate Extent of
                                                                                                           5,137
                                                                                                                                                                                                                               Waste Rock and
                                                                                                                                                                                                                             Tailing Disposal Area
                                                                                                                   PC-2
                                                                                                                                                                          29cda[G-35]
                                                                                                                                                                                                                                                                                                                                                       2
                                                                                                                                                                                                                                                                                                                                                       %      Other Existing Water Well or Borehole
                                                                                                                                                                                    2
                                                                                                                                                                                    %
                                                                                                                                                                             4,765


                                                                                                                                                                                                                                                                                                             E
                                                                                                                   5,118
                                                                                                   36aaa[A-841]        # 2
                                                                                                                       * %                                                                                                                             4,7                                                     Questa Spring
                                                                                   Approximate                                                                                                                                                             00                                           RP-6                                           !
                                                                                                                                                                                                                                                                                                                                                       .      Existing Piezometer
                                                                                    Extent of       2
                                                                                                    %
                                                                                                      5,116     30cdd[A-886]
                                                                                                                   5,053                                                                                                                                                                                   !
                                                                                                                                                                                                                                                                                                           (
                                                                                   Ulitmate Pit                                                                                                                                                                                                                                                        <
                                                                                                                                                                                                                                                                                                                                                       !
                                                                                                             AR-2050                                                                                                  RP-3                                                                                                                                    Proposed Shallow Groundwater Monitor Well
                                                                                                              5,046                                                                                               !
                                                                                                                                                                                                                  (
                                                                                                            #
                                                                                                            *
                                                                                                            !
                                                                                                            .
                                                                                                          PC-3
                                                                                                          4,965                                                E
                                                                                                                                                    Rosemont Spring

                                                                                                                                                                                                 0
                                                                                                                                                                                                                                                                                        2
                                                                                                                                                                                                                                                                                        %
                                                                                                                                                                                                                                                                                   34bda[DH-1497]
                                                                                                                                                                                                                                                                                                                                                       (
                                                                                                                                                                                                                                                                                                                                                       !      Proposed Groundwater Monitor Well
                                                                                                        31cbb[AH-8]
                                                                                                           5,054
                                                                                                                                                                            2
                                                                                                                                                                            %                4,80                                                                                      4,645                                                           ?
                                                                                                                                                                                                                                                                                                                                                       !      Proposed Deep Groundwater Monitor Well
                                                                                                  PC-4                                                        32bdc[Gayler]

                                                                                                    # 2
                                                                                                    * %




                                                                                                                                                4,90
                                                                                                  5,116                                                           4,811


                                                                                                                                                                                         !
                                                                                                                                                                                         ( RP-4A




                                                                                                                                                    0
                                                                                                                                                                                         ?
                                                                                                                                                                                         ! RP-4B

                                                                                                                                                                2
                                                                                                                                                                %
                                                                                                                                                                32ccb[DH-1537]
                                                                                                                                                                    4,893




                                                                                                                                                                                                                                              £
                                                                                                                                                                                                                                              ¤
                                                                                                           5,100



                                                                                                                                5,000


                                                                                                                                                                                                                                                  83


                                                                                                                                                                                                                                                                                                                                                                       0   1,000 2,000 3,000 4,000

                                                                                                                                                                                         !
                                                                                                                                                                                         (
                                                                                                                                                                                             RP-5
                                                                                                                                                                                                                                          2
                                                                                                                                                                                                                                          %
                                                                                                                                                                                                                                                                                                                                                                                 Feet
                                                                                                                                                                                                                                  4dbb[DH-1541]
                                                                                                                                                                                                                                      4,775




                                                                                                                                                                                                                                                                                                                                                        Augusta Resource Corporation

                                                                 Box Canyon Road
                                                                                                                                                                                                                                                                                                                  Las Cienegas                                      GROUNDWATER LEVEL
                                                                                                                                                                                                                                                                                                                                                                        CONTOURS
                                                                                                                                                                                                                                                                                                                  Conservation
                                                                                                                                                                                                                                                                                                                      Area


                                                                                                                                                                                                                                                                                                                                                        November 27, 2007                             Figure 3




TUC-GIS\1232.01\NAD83_UTM_maps\WL_Altitude_Dec2007\WL_Altitude\28Nov2007
                     APPENDIX F

                     2006 – 2008
GROUNDWATER LEVEL MEASUREMENTS
                                                    TABLE 1. SUMMARY OF GROUNDWATER LEVEL MEASUREMENTS FOR WELLS, PIEZOMETERS, AND DRILL HOLES
                                                                            ROSEMONT PROJECT AREA, PIMA COUNTY, ARIZONA
                                                                                                       Page 1 of 24



                                                                 WELL COORDINATES
                                                                      (NAD83)

                                                                                                         LAND                                                                       MEASURING          WATER
                                                    REPORTED                              ADWR        SURFACE                        DEPTH TO        MEASURING        DEPTH TO          POINT          LEVEL
            WELL                  WELL             WELL DEPTH   UTM-EAST UTM-NORTH     REGISTRATION   ALTITUDE          DATE OF       WATER         POINT HEIGHT       WATER         ALTITUDE        ALTITUDE       DATA
          LOCATION             IDENTIFIER             (feet)     (meters)  (meters)      NUMBER       (feet, msl)     MEASUREMENT   (feet, bmp) a     (feet, als) b   (feet, bls)    (feet, msl) c   (feet, msl)   SOURCEd

      (D-17-16)16cba                ---                ---       526,499   3,535,537        ---        3,685.00          4/1/1982     104.50             0.00           104.50        3,685.00        3,580.50      GWSI
                                                                                                                        9/22/2008      95.53             3.42            92.11        3,685.00        3,589.47       V
                                                                                                                       10/17/2008      98.09             3.42            94.67        3,685.00        3,586.91       V
                                                                                                                       11/12/2008     100.46             3.42            97.04        3,685.00        3,584.54       V
                                                                                                                        12/5/2008     101.20             3.42            97.78        3,685.00        3,583.80       V
                                                                                                                        1/12/2009      >103              3.42           >99.58        3,685.00       >3,585.42

      (D-17-16)34aac                ---               205        529,330   3,531,325        ---        4,162.00          4/1/1982      61.40             0.00           61.40         4,162.00        4,100.60      GWSI
                                                                                                                       12/16/1987      51.50             0.00           51.50         4,162.00        4,110.50      GWSI
                                                                                                                        1/18/1995      52.00             0.00           52.00         4,162.00        4,110.00      GWSI
                                                                                                                        10/2/2008      12.68             0.48           12.20         4,162.48        4,149.80       V
                                                                                                                       11/12/2008      12.80             0.48           12.32         4,162.48        4,149.68       V
                                                                                                                        12/5/2008      12.87             0.48           12.39         4,162.48        4,149.61       V
                                                                                                                        1/15/2009      12.95             0.48           12.47         4,162.48        4,149.53      M&A

      (D-17-16)35bba                ---                ---       529,899   3,531,458        ---           ---           1/15/2009       dry               ---             ---             ---            ---        M&A

      (D-18-15)23abc             Old Dick              ---       520,828   3,524,790        ---        4,440.05        6/25/2008       94.00             0.95           93.05         4,440.95        4,346.95       V
                                                                                                                        7/31/2008      92.81             0.95           91.86         4,440.95        4,348.14       V
                                                                                                                        8/29/2008      91.62             0.95           90.67         4,440.95        4,349.33       V
                                                                                                                        9/25/2008      92.37             0.95           91.42         4,440.95        4,348.58       V
                                                                                                                       10/17/2008      92.68             0.95           91.73         4,440.95        4,348.27       V
                                                                                                                       11/12/2008      92.10             0.95           91.15         4,440.95        4,348.85       V
                                                                                                                       12/12/2008      93.24             0.95           92.29         4,440.95        4,347.71       V
                                                                                                                        1/12/2009      91.94             0.95           90.99         4,440.95        4,349.01      M&A

      (D-18-15)25dbd1              PC-7               1,986      522,666   3,522,436     55-908873     5,433.95        7/30/2008      289.29             0.75           288.54        5,432.80        5,146.16      M&A
                                                                                                                        8/15/2008     290.62             2.65           287.97        5,434.70        5,146.73      M&A
                                                                                                                        8/19/2008     290.62             2.65           287.97        5,434.70        5,146.73      M&A
                                                                                                                        8/30/2008     290.88             2.65           288.23        5,434.70        5,146.47      M&A
                                                                                                                         9/4/2008     290.82             2.65           288.17        5,434.70        5,146.53      M&A
                                                                                                                        9/29/2008     290.92             2.65           288.27        5,434.70        5,146.43      M&A
                                                                                                                       10/17/2008     291.16             2.65           288.51        5,434.70        5,146.19      M&A
                                                                                                                       10/23/2008     291.31             2.65           288.66        5,434.70        5,146.04      M&A
                                                                                                                        12/4/2008     292.56             2.65           289.91        5,434.70        5,144.79      M&A
                                                                                                                       12/13/2008     293.05             2.65           290.40        5,434.70        5,144.30      M&A
                                                                                                                       12/19/2008     293.32             2.65           290.67        5,434.70        5,144.03      M&A
                                                                                                                       12/29/2008     292.88             2.65           290.23        5,434.70        5,144.47      M&A
                                                                                                                         1/8/2009     292.71             2.65           290.06        5,434.70        5,144.64      M&A
                                                                                                                        1/21/2009     292.66             2.65           290.01        5,434.70        5,144.69      M&A

      (D-18-15)35abc               1445               195        520,646   3,521,673        ---        5,530.01         6/23/2008     123.00             0.19           122.81        5,530.20        5,407.20        V
                                                                                                                        7/28/2008     123.29             0.19           123.10        5,530.20        5,406.91        V
                                                                                                                        8/22/2008     123.70             0.19           123.51        5,530.20        5,406.50        V
                                                                                                                        9/26/2008     123.00             0.19           122.81        5,530.20        5,407.20        V




1232/07/Tbl10_SumWLmeasurementsRPA.xls/10Feb2009
                                                    TABLE 1. SUMMARY OF GROUNDWATER LEVEL MEASUREMENTS FOR WELLS, PIEZOMETERS, AND DRILL HOLES
                                                                            ROSEMONT PROJECT AREA, PIMA COUNTY, ARIZONA
                                                                                                       Page 2 of 24



                                                                 WELL COORDINATES
                                                                      (NAD83)

                                                                                                         LAND                                                                       MEASURING          WATER
                                                    REPORTED                              ADWR        SURFACE                        DEPTH TO        MEASURING        DEPTH TO          POINT          LEVEL
            WELL                  WELL             WELL DEPTH   UTM-EAST UTM-NORTH     REGISTRATION   ALTITUDE          DATE OF       WATER         POINT HEIGHT       WATER         ALTITUDE        ALTITUDE       DATA
          LOCATION             IDENTIFIER             (feet)     (meters)  (meters)      NUMBER       (feet, msl)     MEASUREMENT   (feet, bmp) a     (feet, als) b   (feet, bls)    (feet, msl) c   (feet, msl)   SOURCEd

      (D-18-15)35abc           1445 (cont.)           195        520,646   3,521,673        ---        5,530.01        10/20/2008     122.55             0.19           122.36        5,530.20        5,407.65       V
                                                                                                                       11/18/2008     123.80             0.19           123.61        5,530.20        5,406.40      M&A
                                                                                                                       12/22/2008     125.60             0.19           125.41        5,530.20        5,404.60      M&A
                                                                                                                       12/29/2008     126.01             0.19           125.82        5,530.20        5,404.19      M&A
                                                                                                                       12/30/2008     126.05             0.19           125.86        5,530.20        5,404.15      M&A
                                                                                                                         1/8/2009     126.47             0.19           126.28        5,530.20        5,403.73      M&A
                                                                                                                        1/20/2009     126.95             0.19           126.76        5,530.20        5,403.25      M&A

      (D-18-15)36aaa              A-841               700        522,979   3,521,902     55-527004     5,187.60         8/13/1975      45.60             0.00           45.60         5,187.60        5,142.00       H
                                                                                                                        12/4/1980      43.58             0.00           43.58         5,187.60        5,144.02      HM
                                                                                                                        1/13/1982      44.00             0.00           44.00         5,187.60        5,143.60      HM
                                                                                                                        12/4/2006       0.00             0.00            0.00         5,187.60        5,187.60      M&A
                                                                                                                        12/7/2006       0.00             0.00            0.00         5,187.60        5,187.60      M&A
                                                                                                                        1/15/2008      DRY               0.00             ---         5,187.60           ---        M&A
                                                                                                                        2/12/2008        ---             0.00             ---         5,187.60           ---        M&A

      (D-18-15)36abc1              PC-8               2,205      522,327   3,521,582     55-908875     5,387.95        7/30/2008      195.88             1.79           194.09        5,389.74        5,195.65      M&A
                                                                                                                         8/6/2008     195.86             1.79           194.07        5,389.74        5,195.67      M&A
                                                                                                                         8/8/2008     195.85             1.79           194.06        5,389.74        5,195.68      M&A
                                                                                                                        8/30/2008     195.99             1.79           194.20        5,389.74        5,195.54      M&A
                                                                                                                         9/4/2008     195.93             1.79           194.14        5,389.74        5,195.60      M&A
                                                                                                                        9/11/2008     195.90             1.79           194.11        5,389.74        5,195.63      M&A
                                                                                                                        9/19/2008     196.08             1.79           194.29        5,389.74        5,195.45      M&A
                                                                                                                       10/18/2008     196.63             1.79           194.84        5,389.74        5,194.90      M&A
                                                                                                                       10/23/2008     196.67             1.79           194.88        5,389.74        5,194.86      M&A
                                                                                                                        12/3/2008     197.02             1.79           195.23        5,389.74        5,194.51      M&A
                                                                                                                        12/9/2008     196.97             1.79           195.18        5,389.74        5,194.56      M&A
                                                                                                                       12/19/2008     197.08             1.79           195.29        5,389.74        5,194.45      M&A
                                                                                                                       12/29/2008     197.27             1.79           195.48        5,389.74        5,194.26      M&A
                                                                                                                         1/8/2009     197.20             1.79           195.41        5,389.74        5,194.33      M&A
                                                                                                                        1/20/2009     197.31             1.79           195.52        5,389.74        5,194.22      M&A

      (D-18-15)36daa               PC-4               1,500      523,003   3,521,024     55-214173     5,230.04         5/10/2007     117.23             3.20           114.03        5,233.24        5,119.21      M&A
                                                                                                                        5/17/2007     125.69             3.20           122.49        5,233.24        5,110.75      M&A
                                                                                                                        5/29/2007     139.08             3.20           135.88        5,233.24        5,097.36      M&A
                                                                                                                        6/25/2007     121.20             3.20           118.00        5,233.24        5,115.24      M&A
                                                                                                                        11/1/2007     112.51             3.20           109.31        5,233.24        5,123.93      M&A
                                                                                                                        1/15/2008     112.65             3.20           109.45        5,233.24        5,123.79      M&A
                                                                                                                        2/12/2008     113.28             3.20           110.08        5,233.24        5,123.16      M&A
                                                                                                                        3/15/2008     114.05             3.20           110.85        5,233.24        5,122.39      M&A
                                                                                                                        3/19/2008     114.26             3.20           111.06        5,233.24        5,122.18       V
                                                                                                                        4/24/2008     115.80             3.20           112.60        5,233.24        5,120.64       V
                                                                                                                        5/16/2008     116.80             3.20           113.60        5,233.24        5,119.64       V
                                                                                                                        6/19/2008     122.50             3.20           119.30        5,233.24        5,113.94       V
                                                                                                                        7/21/2008     119.10             3.20           115.90        5,233.24        5,117.34       V




1232/07/Tbl10_SumWLmeasurementsRPA.xls/10Feb2009
                                                    TABLE 1. SUMMARY OF GROUNDWATER LEVEL MEASUREMENTS FOR WELLS, PIEZOMETERS, AND DRILL HOLES
                                                                            ROSEMONT PROJECT AREA, PIMA COUNTY, ARIZONA
                                                                                                        Page 3 of 24



                                                                 WELL COORDINATES
                                                                      (NAD83)

                                                                                                          LAND                                                                       MEASURING          WATER
                                                    REPORTED                              ADWR         SURFACE                        DEPTH TO        MEASURING        DEPTH TO          POINT          LEVEL
            WELL                  WELL             WELL DEPTH   UTM-EAST UTM-NORTH     REGISTRATION    ALTITUDE          DATE OF       WATER         POINT HEIGHT       WATER         ALTITUDE        ALTITUDE       DATA
          LOCATION             IDENTIFIER             (feet)     (meters)  (meters)      NUMBER        (feet, msl)     MEASUREMENT   (feet, bmp) a     (feet, als) b   (feet, bls)    (feet, msl) c   (feet, msl)   SOURCEd

      (D-18-15)36daa           PC-4 (cont.)           1,500      523,003   3,521,024     55-214173      5,230.04        7/29/2008      119.53             3.20           116.33        5,233.24        5,116.91      M&A
                                                                                                                         8/25/2008     120.80             3.20           117.60        5,233.24        5,115.64       V
                                                                                                                          9/4/2008     120.79             3.20           117.59        5,233.24        5,115.65      M&A
                                                                                                                        10/30/2008     122.91             3.20           119.71        5,233.24        5,113.53      M&A
                                                                                                                         12/3/2008     124.13             3.20           120.93        5,233.24        5,112.31      M&A
                                                                                                                        12/19/2008     124.79             3.20           121.59        5,233.24        5,111.65      M&A
                                                                                                                        12/29/2008     125.12             3.20           121.92        5,233.24        5,111.32      M&A
                                                                                                                          1/8/2009     125.28             3.20           122.08        5,233.24        5,111.16      M&A
                                                                                                                         1/21/2009     125.72             3.20           122.52        5,233.24        5,110.72      M&A

      (D-18-16)14dac                ---              115(?)      530,772   3,525,510    55-633729(?)    4,215.00        2/18/2008        5.66             0.00            5.66         4,215.00        4,209.34      M&A
                                                                                                                         3/18/2008       6.58             0.00            6.58         4,215.00        4,208.42       V
                                                                                                                         4/24/2008       7.88             0.00            7.88         4,215.00        4,207.12       V
                                                                                                                         5/20/2008       9.00             0.00            9.00         4,215.00        4,206.00       V
                                                                                                                         6/16/2008       9.95             0.00            9.95         4,215.00        4,205.05       V
                                                                                                                         7/31/2008       2.21             0.00            2.21         4,215.00        4,212.79       V
                                                                                                                         8/26/2008       2.70             0.00            2.70         4,215.00        4,212.30       V
                                                                                                                         9/18/2008       1.92             0.00            1.92         4,215.00        4,213.08       V
                                                                                                                        10/27/2008       2.00             0.00            2.00         4,215.00        4,213.00       V
                                                                                                                        11/13/2008       2.08             0.00            2.08         4,215.00        4,212.92       V
                                                                                                                        12/12/2008       2.95             0.00            2.95         4,215.00        4,212.05       V
                                                                                                                         1/12/2009       2.20             0.00            2.20         4,215.00        4,212.80      M&A

      (D-18-16)15aaa               RP-7               250        529,460   3,526,589     55-908889      4,285.49        7/27/2008       39.19             -0.42          39.61         4,285.07        4,245.88      M&A
                                                                                                                          8/6/2008      41.07             -0.42          41.49         4,285.07        4,244.00      M&A
                                                                                                                         9/15/2008      36.27             -0.42          36.69         4,285.07        4,248.80      M&A
                                                                                                                        10/30/2008      36.65             -0.42          37.07         4,285.07        4,248.42      M&A
                                                                                                                         12/4/2008      36.96             -0.42          37.38         4,285.07        4,248.11      M&A
                                                                                                                        12/19/2008      37.18             -0.42          37.60         4,285.07        4,247.89      M&A
                                                                                                                        12/30/2008      37.20             -0.42          37.62         4,285.07        4,247.87      M&A
                                                                                                                          1/9/2009      37.25             -0.42          37.67         4,285.07        4,247.82      M&A
                                                                                                                         1/21/2009      37.40             -0.42          37.82         4,285.07        4,247.67      M&A

      (D-18-16)15adb          Mulberry Stock           ---       529,212   3,526,209         ---        4,347.47         7/3/2008       64.80             0.70           64.10         4,348.17        4,283.37      M&A
                                                                                                                         9/18/2008      50.53             0.70           49.83         4,348.17        4,297.64       V
                                                                                                                        10/31/2008      >105              0.70             ---         4,348.17           ---         V
                                                                                                                        11/13/2008      88.48             0.70           87.78         4,348.17        4,259.69       V
                                                                                                                         12/4/2008      54.90             0.43           54.47         4,347.90        4,293.00      M&A
                                                                                                                        12/12/2008      54.31             0.40           53.91         4,347.90        4,293.59       V
                                                                                                                        12/19/2008      53.28             0.40           52.88         4,347.90        4,294.62      M&A
                                                                                                                        12/30/2008      52.75             0.40           52.35         4,347.90        4,295.15      M&A
                                                                                                                          1/9/2009      52.30             0.40           51.90         4,347.90        4,295.60      M&A
                                                                                                                         1/12/2009      52.40             0.69           51.71         4,347.90        4,295.50      M&A
                                                                                                                         1/21/2009      52.05             0.69           51.36         4,347.90        4,295.85      M&A




1232/07/Tbl10_SumWLmeasurementsRPA.xls/10Feb2009
                                                    TABLE 1. SUMMARY OF GROUNDWATER LEVEL MEASUREMENTS FOR WELLS, PIEZOMETERS, AND DRILL HOLES
                                                                            ROSEMONT PROJECT AREA, PIMA COUNTY, ARIZONA
                                                                                                       Page 4 of 24



                                                                 WELL COORDINATES
                                                                      (NAD83)

                                                                                                         LAND                                                                       MEASURING          WATER
                                                    REPORTED                              ADWR        SURFACE                        DEPTH TO        MEASURING        DEPTH TO          POINT          LEVEL
            WELL                  WELL             WELL DEPTH   UTM-EAST UTM-NORTH     REGISTRATION   ALTITUDE          DATE OF       WATER         POINT HEIGHT       WATER         ALTITUDE        ALTITUDE       DATA
          LOCATION             IDENTIFIER             (feet)     (meters)  (meters)      NUMBER       (feet, msl)     MEASUREMENT   (feet, bmp) a     (feet, als) b   (feet, bls)    (feet, msl) c   (feet, msl)   SOURCEd

      (D-18-16)15dbc               RP-6               360        528,799   3,525,495     55-908888     4,461.00        7/27/2008      120.52             -0.36          120.88        4,460.64        4,340.12      M&A
                                                                                                                        9/15/2008     117.45             -0.36          117.81        4,460.64        4,343.19      M&A
                                                                                                                        9/18/2008     117.49             -0.36          117.85        4,460.64        4,343.15       V
                                                                                                                       10/28/2008     177.44             -0.36          177.80        4,460.64        4,283.20       V
                                                                                                                       10/30/2008     117.21             -0.36          117.57        4,460.64        4,343.43      M&A
                                                                                                                       11/13/2008     117.65             -0.36          118.01        4,460.64        4,342.99       V
                                                                                                                        12/4/2008      136.4              0.62          135.78        4,461.62        4,325.22      M&A
                                                                                                                       12/12/2008     139.32              0.62          138.70        4,461.62        4,322.30       V
                                                                                                                       12/19/2008     131.28              0.62          130.66        4,461.62        4,330.34      M&A
                                                                                                                       12/22/2008     128.22              0.62          127.60        4,461.62        4,333.40      M&A
                                                                                                                       12/30/2008     127.14              0.62          126.52        4,461.62        4,334.48      M&A
                                                                                                                         1/9/2009     126.29              0.62          125.67        4,461.62        4,335.33      M&A
                                                                                                                        1/13/2009     126.18              0.62          125.56        4,461.62        4,335.44      M&A
                                                                                                                        1/20/2009     125.57              0.62          124.95        4,461.62        4,336.05      M&A

      (D-18-16)20dbc1             HC-4A               640        525,545   3,524,038     55-909049     4,973.19        7/27/2008       78.27             -0.54          78.81         4,972.65        4,894.38      M&A
                                                                                                                         8/8/2008       76.4             -0.54          76.94         4,972.65        4,896.25      M&A
                                                                                                                         9/4/2008      75.36             -0.54          75.90         4,972.65        4,897.29      M&A
                                                                                                                        9/15/2008      75.33             -0.54          75.87         4,972.65        4,897.32      M&A
                                                                                                                       10/30/2008      74.82             -0.54          75.36         4,972.65        4,897.83      M&A
                                                                                                                        12/4/2008      74.65             -0.54          75.19         4,972.65        4,898.00      M&A
                                                                                                                       12/19/2008      74.75             -0.54          75.29         4,972.65        4,897.90      M&A
                                                                                                                       12/30/2008      74.70             -0.54          75.24         4,972.65        4,897.95      M&A
                                                                                                                         1/9/2009      74.70             -0.54          75.24         4,972.65        4,897.95      M&A
                                                                                                                        1/21/2009      74.69             -0.54          75.23         4,972.65        4,897.96      M&A

      (D-18-16)20dbc2             HC-4B               1,000      525,539   3,524,031     55-909050     4,973.79         7/27/2008     334.27             -0.38          334.65        4,973.41        4,639.14      M&A
                                                                                                                         8/8/2008     328.45             -0.38          328.83        4,973.41        4,644.96      M&A
                                                                                                                         9/4/2008     320.83             -0.38          321.21        4,973.41        4,652.58      M&A
                                                                                                                        9/15/2008     318.11             -0.38          318.49        4,973.41        4,655.30      M&A
                                                                                                                       10/30/2008     302.68             -0.38          303.06        4,973.41        4,670.73      M&A
                                                                                                                        12/4/2008      294.3             -0.38          294.68        4,973.41        4,679.11      M&A
                                                                                                                       12/19/2008     292.50             -0.38          292.88        4,973.41        4,680.91      M&A
                                                                                                                       12/30/2008     291.86             -0.38          292.24        4,973.41        4,681.55      M&A
                                                                                                                         1/9/2009     291.75             -0.38          292.13        4,973.41        4,681.66      M&A
                                                                                                                       1/21/2009      291.12             -0.38          291.50        4,973.41        4,682.29      M&A

      (D-18-16)21abd               HV-2               300        527,498   3,524,802     55-907489     4,488.50         8/21/2007      9.05              1.50           7.55          4,490.00        4,480.95      M&A
                                                                                                                        9/18/2007      10.95             1.50            9.45         4,490.00        4,479.05      M&A
                                                                                                                        11/1/2007      16.30             1.50           14.80         4,490.00        4,473.70      M&A
                                                                                                                        1/18/2008      14.80             1.50           13.30         4,490.00        4,475.20      M&A
                                                                                                                        2/14/2008      14.80             1.50           13.30         4,490.00        4,475.20      M&A
                                                                                                                        3/18/2008      14.58             1.50           13.08         4,490.00        4,475.42       V
                                                                                                                        4/24/2008      14.64             1.50           13.14         4,490.00        4,475.36       V
                                                                                                                        5/16/2008      15.76             1.50           14.26         4,490.00        4,474.24       V




1232/07/Tbl10_SumWLmeasurementsRPA.xls/10Feb2009
                                                    TABLE 1. SUMMARY OF GROUNDWATER LEVEL MEASUREMENTS FOR WELLS, PIEZOMETERS, AND DRILL HOLES
                                                                            ROSEMONT PROJECT AREA, PIMA COUNTY, ARIZONA
                                                                                                       Page 5 of 24



                                                                 WELL COORDINATES
                                                                      (NAD83)

                                                                                                         LAND                                                                       MEASURING          WATER
                                                    REPORTED                              ADWR        SURFACE                        DEPTH TO        MEASURING        DEPTH TO          POINT          LEVEL
            WELL                  WELL             WELL DEPTH   UTM-EAST UTM-NORTH     REGISTRATION   ALTITUDE          DATE OF       WATER         POINT HEIGHT       WATER         ALTITUDE        ALTITUDE       DATA
          LOCATION             IDENTIFIER             (feet)     (meters)  (meters)      NUMBER       (feet, msl)     MEASUREMENT   (feet, bmp) a     (feet, als) b   (feet, bls)    (feet, msl) c   (feet, msl)   SOURCEd

      (D-18-16)21abd           HV-2 (cont.)            300       527,498   3,524,802     55-907489     4,488.50        6/16/2008       52.99             1.50           51.49         4,490.00        4,437.01       V
                                                                                                                        7/24/2008      32.31             1.50           30.81         4,490.00        4,457.69       V
                                                                                                                        8/21/2008       9.11             1.50            7.61         4,490.00        4,480.89       V
                                                                                                                        9/18/2008       8.96             1.50            7.46         4,490.00        4,481.04       V
                                                                                                                       10/29/2008      11.97             1.50           10.47         4,490.00        4,478.03       V
                                                                                                                       10/30/2008      13.00             1.50           11.50         4,490.00        4,477.00      M&A
                                                                                                                       11/13/2008      13.53             1.50           12.03         4,490.00        4,476.47       V
                                                                                                                        12/4/2008      13.13             1.50           11.63         4,490.00        4,476.87      M&A
                                                                                                                        12/9/2008      13.40             1.50           11.90         4,490.00        4,476.60      M&A
                                                                                                                       12/15/2008      13.76             1.50           12.26         4,490.00        4,476.24       V
                                                                                                                       12/20/2008      13.78             1.50           12.28         4,490.00        4,476.22      M&A
                                                                                                                       12/30/2008      13.85             1.50           12.35         4,490.00        4,476.15      M&A
                                                                                                                         1/9/2009      13.86             1.50           12.36         4,490.00        4,476.14      M&A
                                                                                                                        1/12/2009      13.82             1.50           12.32         4,490.00        4,476.18      M&A
                                                                                                                        1/20/2009      13.75             1.50           12.25         4,490.00        4,476.25      M&A

      (D-18-16)21acb               HV-1                522       527,110   3,524,608     55-907488     4,549.00        8/21/2007          ---            1.00              ---        4,550.00           ---        M&A
                                                                                                                       9/18/2007        55.32            1.00            54.32        4,550.00        4,494.68      M&A
                                                                                                                       11/1/2007       238.85            1.00           237.85        4,550.00        4,311.15      M&A
                                                                                                                       1/18/2008        55.57            1.00            54.57        4,550.00        4,494.43      M&A
                                                                                                                       2/14/2008        63.05            1.00            62.05        4,550.00        4,486.95      M&A
                                                                                                                       3/18/2008        63.61            1.00            62.61        4,550.00        4,486.39       V
                                                                                                                       4/24/2008        64.61            1.00            63.61        4,550.00        4,485.39       V
                                                                                                                       5/16/2008      >240.00            1.00              ---        4,550.00        <4,310.0       V
                                                                                                                       6/19/2008      >240.00            1.00              ---        4,550.00        <4,310.0       V
                                                                                                                       7/24/2008      >240.00            1.00              ---        4,550.00        <4,310.0       V
                                                                                                                        8/20/2008     >240.01            1.00              ---        4,550.00        <4,310.1       V
                                                                                                                        9/18/2008      224.59            1.00           223.59        4,550.00        4,325.41       V
                                                                                                                       10/29/2008       68.36            1.00            67.36        4,550.00        4,481.64       V
                                                                                                                       11/13/2008       60.14            1.00            59.14        4,550.00        4,489.86       V
                                                                                                                       12/15/2008       55.92            1.00            54.92        4,550.00        4,494.08       V
                                                                                                                        1/12/2009       55.37            1.00            54.37        4,550.00        4,494.63      M&A

      (D-18-16)21ada       Hidden Valley Stock        50 (?)     527,812   3,524,734        ---        4,471.70        4/29/2006       23.15             2.30           20.85         4,474.00        4,450.85      M&A
                                                                                                                       11/15/2006        ---              ---             ---         4,474.00           ---        M&A
                                                                                                                        6/25/2007        ---              ---             ---         4,474.00           ---        M&A
                                                                                                                        11/1/2007        ---              ---             ---         4,474.00           ---        M&A
                                                                                                                        1/18/2008        ---              ---             ---         4,475.00           ---        M&A

      (D-18-16)21bda             DH-1455              1,000      527,103   3,524,624     55-634309     4,546.20        11/24/1971      54.00              ---           54.00         4,547.00        4,493.00      GWSI
                                                                                        (55-804886)                    11/13/1975      44.10              ---           44.10         4,547.00        4,502.90        H
                                                                                                                        12/5/1980      54.26              ---           54.26         4,547.00        4,492.74       HM
                                                                                                                        1/18/1982      44.98              ---           44.98         4,547.00        4,502.02       HM
                                                                                                                        4/29/2006      46.67             0.80           45.87         4,547.00        4,500.33      M&A
                                                                                                                       11/15/2006      36.91             0.80           36.11         4,547.00        4,510.09      M&A




1232/07/Tbl10_SumWLmeasurementsRPA.xls/10Feb2009
                                                    TABLE 1. SUMMARY OF GROUNDWATER LEVEL MEASUREMENTS FOR WELLS, PIEZOMETERS, AND DRILL HOLES
                                                                            ROSEMONT PROJECT AREA, PIMA COUNTY, ARIZONA
                                                                                                       Page 6 of 24



                                                                 WELL COORDINATES
                                                                      (NAD83)

                                                                                                         LAND                                                                       MEASURING          WATER
                                                    REPORTED                              ADWR        SURFACE                        DEPTH TO        MEASURING        DEPTH TO          POINT          LEVEL
            WELL                  WELL             WELL DEPTH   UTM-EAST UTM-NORTH     REGISTRATION   ALTITUDE          DATE OF       WATER         POINT HEIGHT       WATER         ALTITUDE        ALTITUDE       DATA
          LOCATION             IDENTIFIER             (feet)     (meters)  (meters)      NUMBER       (feet, msl)     MEASUREMENT   (feet, bmp) a     (feet, als) b   (feet, bls)    (feet, msl) c   (feet, msl)   SOURCEd

      (D-18-16)21bda         DH-1455 (cont.)          1,000      527,103   3,524,624     55-634309     4,546.20        6/25/2007       36.50             0.80           35.70         4,547.00        4,510.50      M&A
                                                                                        (55-804886)                     9/18/2007      36.91             0.80           36.11         4,547.00        4,510.09      M&A
                                                                                                                        11/1/2007      41.64             0.80           40.84         4,547.00        4,505.36      M&A
                                                                                                                        1/18/2008      39.87             0.80           39.07         4,547.00        4,507.13      M&A
                                                                                                                        2/14/2008      39.95             0.80           39.15         4,547.00        4,507.05      M&A
                                                                                                                        3/18/2008      40.92             0.80           40.12         4,547.00        4,506.08       V
                                                                                                                        4/24/2008       41.4             0.80           40.60         4,547.00        4,505.60       V
                                                                                                                        5/16/2008      43.17             0.80           42.37         4,547.00        4,503.83       V
                                                                                                                        6/19/2008      45.11             0.80           44.31         4,547.00        4,501.89       V
                                                                                                                        7/24/2008      50.38             0.80           49.58         4,547.00        4,496.62       V
                                                                                                                        8/20/2008      43.95             0.80           43.15         4,547.00        4,503.05       V
                                                                                                                        9/19/2008      43.39             0.80           42.59         4,547.00        4,503.61       V
                                                                                                                       10/29/2008      41.01             0.80           40.21         4,547.00        4,505.99       V
                                                                                                                       11/13/2008      40.53             0.80           39.73         4,547.00        4,506.47       V
                                                                                                                       12/15/2008      39.92             0.80           39.12         4,547.00        4,507.08       V
                                                                                                                        1/12/2009      39.35             0.80           38.55         4,547.00        4,507.65      M&A

      (D-18-16)21dcd                ---                ---       527,503   3,523,526        ---        4,559.45        3/31/1982       37.4               ---             ---         4,560.00        4,522.60      GWSI
                                                                                                                       12/14/1987       34.5              ---             ---         4,560.00        4,525.50      GWSI
                                                                                                                        2/14/2005       38.2              ---             ---         4,560.00        4,521.80      GWSI
                                                                                                                        4/29/2006      40.17             0.55           39.62         4,560.00        4,519.83      M&A
                                                                                                                       11/15/2006      41.14             0.55           40.59         4,560.00        4,518.86      M&A
                                                                                                                        6/25/2007      41.85             0.55           41.30         4,560.00        4,518.15      M&A
                                                                                                                        11/1/2007      42.27             0.55           41.72         4,560.00        4,517.73      M&A
                                                                                                                        1/15/2008      42.38             0.55           41.83         4,560.00        4,517.62      M&A
                                                                                                                        2/12/2008      42.43             0.55           41.88         4,560.00        4,517.57      M&A
                                                                                                                        3/18/2008       42.5             0.55           41.95         4,560.00        4,517.50       V
                                                                                                                        4/21/2008      42.65             0.55           42.10         4,560.00        4,517.35       V
                                                                                                                        5/16/2008      42.76             0.55           42.21         4,560.00        4,517.24       V
                                                                                                                        6/16/2008      42.81             0.55           42.26         4,560.00        4,517.19       V
                                                                                                                        7/21/2008      36.15             0.55           35.60         4,560.00        4,523.85       V
                                                                                                                        8/20/2008       33.9             0.55           33.35         4,560.00        4,526.10       V
                                                                                                                        9/18/2008       33.5             0.55           32.95         4,560.00        4,526.50       V
                                                                                                                       10/20/2008      33.81             0.55           33.26         4,560.00        4,526.19       V
                                                                                                                       11/11/2008      34.19             0.55           33.64         4,560.00        4,525.81       V
                                                                                                                       12/10/2008      34.10             0.55           33.55         4,560.00        4,525.90       V
                                                                                                                        1/13/2009      34.90             0.55           34.35         4,560.00        4,525.10      M&A

      (D-18-16)22dbc             DH-1494              600        528,679   3,523,958        ---        4,507.30         8/7/1975       86.5               ---             ---         4,508.00        4,421.50        H
      (east of Rest Area)                                                                                               12/8/1980      93.78              ---             ---         4,508.00        4,414.22       HM
                                                                                                                        1/19/1982      83.53              ---             ---         4,508.00        4,424.47       HM
                                                                                                                        3/31/1982       79.8              ---             ---         4,508.00        4,428.20      GWSI
                                                                                                                       12/14/1987       73.7              ---             ---         4,508.00        4,434.30      GWSI
                                                                                                                        2/14/2005       80.5              ---             ---         4,508.00        4,427.50      GWSI
                                                                                                                        2/18/2008       82.6             0.70           81.90         4,508.00        4,425.40      M&A




1232/07/Tbl10_SumWLmeasurementsRPA.xls/10Feb2009
                                                    TABLE 1. SUMMARY OF GROUNDWATER LEVEL MEASUREMENTS FOR WELLS, PIEZOMETERS, AND DRILL HOLES
                                                                            ROSEMONT PROJECT AREA, PIMA COUNTY, ARIZONA
                                                                                                       Page 7 of 24



                                                                 WELL COORDINATES
                                                                      (NAD83)

                                                                                                         LAND                                                                       MEASURING          WATER
                                                    REPORTED                              ADWR        SURFACE                        DEPTH TO        MEASURING        DEPTH TO          POINT          LEVEL
            WELL                  WELL             WELL DEPTH   UTM-EAST UTM-NORTH     REGISTRATION   ALTITUDE          DATE OF       WATER         POINT HEIGHT       WATER         ALTITUDE        ALTITUDE       DATA
          LOCATION             IDENTIFIER             (feet)     (meters)  (meters)      NUMBER       (feet, msl)     MEASUREMENT   (feet, bmp) a     (feet, als) b   (feet, bls)    (feet, msl) c   (feet, msl)   SOURCEd

      (D-18-16)22dbc         DH-1494 (cont.)          600        528,679   3,523,958        ---        4,507.30        3/18/2008       81.32             0.70           80.62         4,508.00        4,426.68       V
      (east of Rest Area)                                                                                               4/29/2008       81.9             0.70           81.20         4,508.00        4,426.10       V
                                                                                                                        5/19/2008      82.56             0.70           81.86         4,508.00        4,425.44       V
                                                                                                                        6/16/2008       82.8             0.70           82.10         4,508.00        4,425.20       V
                                                                                                                        7/21/2008      82.32             0.70           81.62         4,508.00        4,425.68       V
                                                                                                                        8/26/2008      81.75             0.70           81.05         4,508.00        4,426.25       V
                                                                                                                        9/29/2008      82.78             0.70           82.08         4,508.00        4,425.22       V
                                                                                                                       10/23/2008      82.95             0.70           82.25         4,508.00        4,425.05       V
                                                                                                                       11/11/2008      83.00             0.70           82.30         4,508.00        4,425.00       V
                                                                                                                       12/15/2008      82.97             0.70           82.27         4,508.00        4,425.03       V
                                                                                                                        1/12/2009      82.85             0.70           82.15         4,508.00        4,425.15      M&A

      (D-18-16)23dba               RP-8               250        530,575   3,524,114     55-908890     4,375.67        9/15/2008       91.38             -0.28          91.66         4,375.39        4,284.01      M&A
                                                                                                                        9/18/2008      91.45             -0.28          91.73         4,375.39        4,283.94       V
                                                                                                                       10/28/2008      90.20             -0.28          90.48         4,375.39        4,285.19       V
                                                                                                                       11/13/2008      89.93             -0.28          90.21         4,375.39        4,285.46       V
                                                                                                                       11/14/2008      89.65             -0.28          89.93         4,375.39        4,285.74      M&A
                                                                                                                        12/4/2008      89.25             -0.28          89.53         4,375.39        4,286.14      M&A
                                                                                                                       12/12/2008      89.48             -0.28          89.76         4,375.39        4,285.91       V
                                                                                                                       12/22/2008      88.94             -0.28          89.22         4,375.39        4,286.45      M&A
                                                                                                                       12/30/2008      88.84             -0.28          89.12         4,375.39        4,286.55      M&A
                                                                                                                         1/9/2009      88.72             -0.28          89.00         4,375.39        4,286.67      M&A
                                                                                                                        1/12/2009      88.80             -0.28          89.08         4,375.39        4,286.59      M&A
                                                                                                                        1/21/2009      88.53             -0.28          88.81         4,375.39        4,286.86      M&A

      (D-18-16)23dcc2                ---              600        530,391   3,523,668     55-633731     4,371.98        11/1/2007       14.10             1.42           12.68         4,373.40        4,359.30      M&A
                                                                                                                        1/17/2008      16.95             1.42           15.53         4,373.40        4,356.45      M&A
                                                                                                                        2/12/2008      17.72             1.42           16.30         4,373.40        4,355.68      M&A
                                                                                                                        3/20/2008      18.23             1.42           16.81         4,373.40        4,355.17       V
                                                                                                                        4/29/2008      18.75             1.42           17.33         4,373.40        4,354.65       V
                                                                                                                        5/19/2008      19.92             1.42           18.50         4,373.40        4,353.48       V
                                                                                                                        6/18/2008      23.92             1.42           22.50         4,373.40        4,349.48       V
                                                                                                                        7/22/2008       9.57             1.42            8.15         4,373.40        4,363.83       V
                                                                                                                        8/28/2008      11.30             1.42            9.88         4,373.40        4,362.10       V
                                                                                                                        9/18/2008      11.11             1.42            9.69         4,373.40        4,362.29       V
                                                                                                                       10/27/2008      12.62             1.42           11.20         4,373.40        4,360.78       V
                                                                                                                       11/13/2008      13.49             1.42           12.07         4,373.40        4,359.91       V
                                                                                                                       12/12/2008      14.32             1.42           12.90         4,373.40        4,359.08       V
                                                                                                                        1/12/2009      15.31             1.42           13.89         4,373.40        4,358.09      M&A

      (D-18-16)24dca                 ---               ---       532,111   3,523,835        ---        4,440.00        10/27/2008      7.56              1.50           6.06          4,441.50        4,433.94       V
                                                                                                                       11/18/2008       9.45             1.50            7.95         4,441.50        4,432.05       V
                                                                                                                       12/16/2008      29.31             1.50           27.81         4,441.50        4,412.19       V
                                                                                                                        1/15/2009      30.02             1.50           28.52         4,441.50        4,411.48      M&A




1232/07/Tbl10_SumWLmeasurementsRPA.xls/10Feb2009
                                                    TABLE 1. SUMMARY OF GROUNDWATER LEVEL MEASUREMENTS FOR WELLS, PIEZOMETERS, AND DRILL HOLES
                                                                            ROSEMONT PROJECT AREA, PIMA COUNTY, ARIZONA
                                                                                                       Page 8 of 24



                                                                 WELL COORDINATES
                                                                      (NAD83)

                                                                                                         LAND                                                                       MEASURING          WATER
                                                    REPORTED                              ADWR        SURFACE                        DEPTH TO        MEASURING        DEPTH TO          POINT          LEVEL
            WELL                  WELL             WELL DEPTH   UTM-EAST UTM-NORTH     REGISTRATION   ALTITUDE          DATE OF       WATER         POINT HEIGHT       WATER         ALTITUDE        ALTITUDE       DATA
          LOCATION             IDENTIFIER             (feet)     (meters)  (meters)      NUMBER       (feet, msl)     MEASUREMENT   (feet, bmp) a     (feet, als) b   (feet, bls)    (feet, msl) c   (feet, msl)   SOURCEd

      (D-18-16)27adb             DH-1490              600        529,212   3,523,010        ---        4,510.00         8/7/1975       45.00             0.00           45.00         4,510.00        4,465.00       H
                                                                                                                        12/8/1980      45.21             0.00           45.21         4,510.00        4,464.79      HM
                                                                                                                        1/19/1982      45.24             0.00           45.24         4,510.00        4,464.76      HM
                                                                                                                        2/18/2008      49.90             0.00           49.90         4,510.00        4,460.10      M&A
                                                                                                                        3/17/2008      50.20             0.00           50.20         4,510.00        4,459.80       V
                                                                                                                        4/23/2008      49.65             0.00           49.65         4,510.00        4,460.35       V
                                                                                                                        5/16/2008      50.80             0.00           50.80         4,510.00        4,459.20       V
                                                                                                                        6/18/2008      51.20             0.00           51.20         4,510.00        4,458.80       V
                                                                                                                        7/25/2008      49.93             0.00           49.93         4,510.00        4,460.07       V
                                                                                                                        8/28/2008      47.88             0.00           47.88         4,510.00        4,462.12       V
                                                                                                                        9/18/2008      46.25             0.00           46.25         4,510.00        4,463.75       V
                                                                                                                       10/21/2008      46.72             0.00           46.72         4,510.00        4,463.28       V
                                                                                                                       11/13/2008      47.42             0.00           47.42         4,510.00        4,462.58       V
                                                                                                                       12/12/2008      47.85             0.00           47.85         4,510.00        4,462.15       V
                                                                                                                        1/12/2009      48.04             0.00           48.04         4,510.00        4,461.96      M&A

      (D-18-16)27ddc               RP-9               250        529,215   3,521,929     55-908891     4,644.14        7/27/2008       91.75             -0.59          92.34         4,643.55        4,551.80      M&A
                                                                                                                        9/15/2008      34.16             -0.59          34.75         4,643.55        4,609.39      M&A
                                                                                                                        9/18/2008      34.23             -0.59          34.82         4,643.55        4,609.32       V
                                                                                                                       10/21/2008      34.18             -0.59          34.77         4,643.55        4,609.37       V
                                                                                                                       11/13/2008      34.36             -0.59          34.95         4,643.55        4,609.19       V
                                                                                                                       11/14/2008      34.12             -0.59          34.71         4,643.55        4,609.43      M&A
                                                                                                                        12/4/2008      34.02             -0.59          34.61         4,643.55        4,609.53      M&A
                                                                                                                       12/15/2008      34.33             -0.59          34.92         4,643.55        4,609.22       V
                                                                                                                       12/22/2008      33.91             -0.59          34.50         4,643.55        4,609.64      M&A
                                                                                                                       12/30/2008      33.96             -0.59          34.55         4,643.55        4,609.59      M&A
                                                                                                                         1/9/2009      33.95             -0.59          34.54         4,643.55        4,609.60      M&A
                                                                                                                        1/13/2009      34.00             -0.59          34.59         4,643.55        4,609.55      M&A
                                                                                                                        1/21/2009      33.93             -0.59          34.52         4,643.55        4,609.62      M&A

      (D-18-16)28aba1             RP-2A                30        527,460   3,523,501     55-909051     4,540.26        7/27/2008       19.55             -0.49          20.04         4,539.77        4,520.22      M&A
                                                                                                                        9/15/2008      24.43             -0.49          24.92         4,539.77        4,515.34      M&A
                                                                                                                        9/18/2008      24.81             -0.49          25.30         4,539.77        4,514.96       V
                                                                                                                       10/20/2008      26.88             -0.49          27.37         4,539.77        4,512.89       V
                                                                                                                       10/30/2008      27.17             -0.49          27.66         4,539.77        4,512.60      M&A
                                                                                                                        12/3/2008      28.29             -0.49          28.78         4,539.77        4,511.48      M&A
                                                                                                                       12/10/2008      28.75             -0.49          29.24         4,539.77        4,511.02       V
                                                                                                                       12/19/2008      28.59             -0.49          29.08         4,539.77        4,511.18      M&A
                                                                                                                       12/29/2008      28.56             -0.49          29.05         4,539.77        4,511.21      M&A
                                                                                                                         1/9/2009      28.58             -0.49          29.07         4,539.77        4,511.19      M&A
                                                                                                                        1/13/2009      28.68             -0.49          29.17         4,539.77        4,511.09      M&A
                                                                                                                        1/21/2009      28.76             -0.49          29.25         4,539.77        4,511.01      M&A

      (D-18-16)28aba2             RP-2B               200        527,459   3,523,511     55-909052     4,539.45         7/27/2008      30.8              -0.45          31.25         4,539.00        4,508.20      M&A
                                                                                                                        9/15/2008      26.36             -0.45          26.81         4,539.00        4,512.64      M&A




1232/07/Tbl10_SumWLmeasurementsRPA.xls/10Feb2009
                                                    TABLE 1. SUMMARY OF GROUNDWATER LEVEL MEASUREMENTS FOR WELLS, PIEZOMETERS, AND DRILL HOLES
                                                                            ROSEMONT PROJECT AREA, PIMA COUNTY, ARIZONA
                                                                                                       Page 9 of 24



                                                                 WELL COORDINATES
                                                                      (NAD83)

                                                                                                         LAND                                                                       MEASURING          WATER
                                                    REPORTED                              ADWR        SURFACE                        DEPTH TO        MEASURING        DEPTH TO          POINT          LEVEL
            WELL                  WELL             WELL DEPTH   UTM-EAST UTM-NORTH     REGISTRATION   ALTITUDE          DATE OF       WATER         POINT HEIGHT       WATER         ALTITUDE        ALTITUDE       DATA
          LOCATION             IDENTIFIER             (feet)     (meters)  (meters)      NUMBER       (feet, msl)     MEASUREMENT   (feet, bmp) a     (feet, als) b   (feet, bls)    (feet, msl) c   (feet, msl)   SOURCEd

      (D-18-16)28aba2         RP-2B (cont.)           200        527,459   3,523,511     55-909052     4,539.45        9/18/2008       27.26             -0.45          27.71         4,539.00        4,511.74       V
                                                                                                                       10/20/2008      30.08             -0.45          30.53         4,539.00        4,508.92       V
                                                                                                                       10/30/2008      30.64             -0.45          31.09         4,539.00        4,508.36      M&A
                                                                                                                       11/11/2008      31.45             -0.45          31.90         4,539.00        4,507.55       V
                                                                                                                       11/14/2008      31.35             -0.45          31.80         4,539.00        4,507.65      M&A
                                                                                                                        12/3/2008      31.71             -0.45          32.16         4,539.00        4,507.29      M&A
                                                                                                                       12/10/2008      32.05             -0.45          32.50         4,539.00        4,506.95       V
                                                                                                                       12/19/2008      32.00             -0.45          32.45         4,539.00        4,507.00      M&A
                                                                                                                       12/29/2008      32.09             -0.45          32.54         4,539.00        4,506.91      M&A
                                                                                                                         1/9/2009      32.05             -0.45          32.50         4,539.00        4,506.95      M&A
                                                                                                                        1/13/2009      32.32             -0.45          32.77         4,539.00        4,506.68      M&A
                                                                                                                        1/21/2009      32.37             -0.45          32.82         4,539.00        4,506.63      M&A

      (D-18-16)28aba3             RP-2C               520        527,461   3,523,520     55-909053     4,538.94        7/27/2008       43.72             -0.54          44.26         4,538.40        4,494.68      M&A
                                                                                                                        9/15/2008      28.39             -0.54          28.93         4,538.40        4,510.01      M&A
                                                                                                                        9/18/2008      28.60             -0.54          29.14         4,538.40        4,509.80       V
                                                                                                                       10/20/2008      30.81             -0.54          31.35         4,538.40        4,507.59       V
                                                                                                                       10/30/2008      31.47             -0.54          32.01         4,538.40        4,506.93      M&A
                                                                                                                       11/11/2008      31.26             -0.54          31.80         4,538.40        4,507.14       V
                                                                                                                       11/14/2008      32.29             -0.54          32.83         4,538.40        4,506.11      M&A
                                                                                                                        12/3/2008      33.05             -0.54          33.59         4,538.40        4,505.35      M&A
                                                                                                                       12/10/2008      32.43             -0.54          32.97         4,538.40        4,505.97       V
                                                                                                                       12/19/2008      33.57             -0.54          34.11         4,538.40        4,504.83      M&A
                                                                                                                       12/29/2008      33.73             -0.54          34.27         4,538.40        4,504.67      M&A
                                                                                                                         1/9/2009      33.90             -0.54          34.44         4,538.40        4,504.50      M&A
                                                                                                                        1/13/2009      34.01             -0.54          34.55         4,538.40        4,504.39      M&A
                                                                                                                        1/21/2009      34.09             -0.54          34.63         4,538.40        4,504.31      M&A

      (D-18-16)29bbd              P-899               3,200      524,939   3,523,178     55-608629     4,823.00        12/8/1980        0.00              ---             ---         4,824.40        4,824.40      HM
                                                                                                                       10/31/2007       0.00              ---             ---         4,824.40        4,824.40      M&A
                                                                                                                        1/17/2008       0.00              ---             ---         4,825.40        4,825.40      M&A
                                                                                                                        2/13/2008       0.00              ---             ---         4,826.40        4,826.40      M&A
                                                                                                                        3/19/2008       0.00              ---             ---         4,826.40        4,826.40       V
                                                                                                                        4/21/2008       0.00              ---             ---         4,826.40        4,826.40       V
                                                                                                                        5/16/2008       0.00              ---             ---         4,826.40        4,826.40       V
                                                                                                                        6/17/2008       0.00              ---             ---         4,826.40        4,826.40       V
                                                                                                                        7/25/2008       0.00              ---             ---         4,826.40        4,826.40       V
                                                                                                                        8/25/2008       0.00              ---             ---         4,826.40        4,826.40       V
                                                                                                                        9/26/2008       0.00              ---             ---         4,826.40        4,826.40       V
                                                                                                                       10/29/2008       0.00              ---             ---         4,827.40        4,827.40       V
                                                                                                                       11/12/2008       0.00              ---             ---         4,827.40        4,827.40       V
                                                                                                                       12/15/2008       0.00              ---             ---         4,827.40        4,827.40       V
                                                                                                                        1/13/2009       0.00              ---             ---         4,827.40        4,827.40      M&A




1232/07/Tbl10_SumWLmeasurementsRPA.xls/10Feb2009
                                                    TABLE 1. SUMMARY OF GROUNDWATER LEVEL MEASUREMENTS FOR WELLS, PIEZOMETERS, AND DRILL HOLES
                                                                            ROSEMONT PROJECT AREA, PIMA COUNTY, ARIZONA
                                                                                                      Page 10 of 24



                                                                 WELL COORDINATES
                                                                      (NAD83)

                                                                                                         LAND                                                                      MEASURING          WATER
                                                    REPORTED                              ADWR        SURFACE                       DEPTH TO        MEASURING        DEPTH TO          POINT          LEVEL
            WELL                  WELL             WELL DEPTH   UTM-EAST UTM-NORTH     REGISTRATION   ALTITUDE        DATE OF        WATER         POINT HEIGHT       WATER         ALTITUDE        ALTITUDE       DATA
          LOCATION             IDENTIFIER             (feet)     (meters)  (meters)      NUMBER       (feet, msl)   MEASUREMENT    (feet, bmp) a     (feet, als) b   (feet, bls)    (feet, msl) c   (feet, msl)   SOURCEd

      (D-18-16)29bda          TTBH-08-08C              ---       525,398   3,523,031        ---        4,738.31       7/24/2008        0.00             -0.35           0.35         4,737.96        4,737.96       V
                                 (C-13)                                                                                8/28/2008       0.58             -0.35           0.93         4,737.96        4,737.38       V
                                                                                                                       9/29/2008       1.50             -0.35           1.85         4,738.96        4,737.46       V
                                                                                                                      10/23/2008       5.78             -0.35           6.13         4,739.96        4,734.18       V
                                                                                                                      11/12/2008       8.34             -0.35           8.69         4,739.96        4,731.62       V
                                                                                                                      12/17/2008       8.25             -0.35           8.60         4,739.96        4,731.71       V
                                                                                                                       1/13/2009       8.00             -0.35           8.35         4,740.00        4,732.00      M&A

      (D-18-16)29ccb1             HC-3A                53        524,808   3,522,153     55-909043     4,842.96        6/16/2008      20.28             -0.20          20.48         4,842.76        4,822.48      M&A
                                                                                                                        7/1/2008      21.12             -0.20          21.32         4,842.76        4,821.64      M&A
                                                                                                                       7/27/2008       19.9             -0.20          20.10         4,842.76        4,822.86      M&A
                                                                                                                       7/29/2008       19.9             -0.20          20.10         4,842.76        4,822.86      M&A
                                                                                                                       9/15/2008      19.79             -0.20          19.99         4,842.76        4,822.97      JCM
                                                                                                                       9/18/2008      19.89             -0.20          20.09         4,842.76        4,822.87       V
                                                                                                                      10/30/2008      19.73             -0.20          19.93         4,842.76        4,823.03      M&A
                                                                                                                       12/3/2008      19.70             -0.20          19.90         4,842.76        4,823.06      M&A
                                                                                                                      12/19/2008      19.68             -0.20          19.88         4,842.76        4,823.08      M&A
                                                                                                                      12/29/2008      19.69             -0.20          19.89         4,842.76        4,823.07      M&A
                                                                                                                        1/9/2009      19.68             -0.20          19.88         4,842.76        4,823.08      M&A
                                                                                                                       1/21/2009      19.69             -0.20          19.89         4,842.76        4,823.07      M&A

      (D-18-16)29ccb2             HC-3B               394        524,814   3,522,160     55-908881     4,841.98       6/16/2008       39.9              -0.38          40.28         4,841.60        4,801.70      M&A
                                                                                                                        7/1/2008      38.95             -0.38          39.33         4,841.60        4,802.65      M&A
                                                                                                                       7/27/2008      38.13             -0.38          38.51         4,841.60        4,803.47      M&A
                                                                                                                       7/29/2008       38.3             -0.38          38.68         4,841.60        4,803.30      M&A
                                                                                                                        9/4/2008      56.04             -0.38          56.42         4,841.60        4,785.56      M&A
                                                                                                                       9/15/2008      41.79             -0.38          42.17         4,841.60        4,799.81      M&A
                                                                                                                       9/18/2008      39.92             -0.38          40.30         4,841.60        4,801.68       V
                                                                                                                      10/30/2008      31.65             -0.38          32.03         4,841.60        4,809.95      M&A
                                                                                                                       12/3/2008      29.10             -0.38          29.48         4,841.60        4,812.50      M&A
                                                                                                                      12/19/2008      28.12             -0.38          28.50         4,841.60        4,813.48      M&A
                                                                                                                      12/29/2008      27.56             -0.38          27.94         4,841.60        4,814.04      M&A
                                                                                                                        1/9/2009      26.89             -0.38          27.27         4,841.60        4,814.71      M&A
                                                                                                                       1/21/2009      26.36             -0.38          26.74         4,841.60        4,815.24      M&A

      (D-18-16)29ccb3             HC-3C               1,000      524,819   3,522,162     55-908882     4,840.64       6/16/2008       41.53             -0.23          41.76         4,840.41        4,798.88      M&A
                                                                                                                        7/1/2008       39.5             -0.23          39.73         4,840.41        4,800.91      M&A
                                                                                                                       7/27/2008      38.35             -0.23          38.58         4,840.41        4,802.06      M&A
                                                                                                                       7/29/2008      38.31             -0.23          38.54         4,840.41        4,802.10      M&A
                                                                                                                        9/4/2008       56.1             -0.23          56.33         4,840.41        4,784.31      M&A
                                                                                                                       9/15/2008      42.25             -0.23          42.48         4,840.41        4,798.16      M&A
                                                                                                                       9/18/2008      40.09             -0.23          40.32         4,840.41        4,800.32       V
                                                                                                                      10/30/2008      30.71             -0.23          30.94         4,840.41        4,809.70      M&A
                                                                                                                       12/3/2008      27.71             -0.23          27.94         4,840.41        4,812.70      M&A
                                                                                                                      12/19/2008      26.75             -0.23          26.98         4,840.41        4,813.66      M&A




1232/07/Tbl10_SumWLmeasurementsRPA.xls/10Feb2009
                                                    TABLE 1. SUMMARY OF GROUNDWATER LEVEL MEASUREMENTS FOR WELLS, PIEZOMETERS, AND DRILL HOLES
                                                                            ROSEMONT PROJECT AREA, PIMA COUNTY, ARIZONA
                                                                                                      Page 11 of 24



                                                                 WELL COORDINATES
                                                                      (NAD83)

                                                                                                         LAND                                                                      MEASURING          WATER
                                                    REPORTED                              ADWR        SURFACE                       DEPTH TO        MEASURING        DEPTH TO          POINT          LEVEL
            WELL                  WELL             WELL DEPTH   UTM-EAST UTM-NORTH     REGISTRATION   ALTITUDE        DATE OF        WATER         POINT HEIGHT       WATER         ALTITUDE        ALTITUDE       DATA
          LOCATION             IDENTIFIER             (feet)     (meters)  (meters)      NUMBER       (feet, msl)   MEASUREMENT    (feet, bmp) a     (feet, als) b   (feet, bls)    (feet, msl) c   (feet, msl)   SOURCEd

      (D-18-16)29ccb3         HC-3C (cont.)           1,000      524,819   3,522,162     55-908882     4,840.64       12/29/2008      26.13             -0.23          26.36         4,840.41        4,814.28      M&A
                                                                                                                        1/9/2009      25.47             -0.23          25.70         4,840.41        4,814.94      M&A
                                                                                                                       1/21/2009      24.89             -0.23          25.12         4,840.41        4,815.52      M&A

      (D-18-16)29cda               G-35               508        525,449   3,522,203     55-608630     4,764.35       4/29/2006      209.67             0.65           209.02        4,765.00        4,555.33      M&A
                                                                                                                        5/6/2006     142.53             0.65           141.88        4,765.00        4,622.47      M&A
                                                                                                                       2/13/2007      44.84             0.65            44.19        4,765.00        4,720.16      M&A
                                                                                                                       2/14/2007      34.69             0.65            34.04        4,765.00        4,730.31      M&A
                                                                                                                       2/27/2007      29.33             0.65            28.68        4,765.00        4,735.67      M&A
                                                                                                                       6/25/2007      90.04             0.65            89.39        4,765.00        4,674.96      M&A
                                                                                                                      10/31/2007       0.00             0.65            -0.65        4,765.00        4,765.00      M&A
                                                                                                                       1/15/2008     117.42             0.65           116.77        4,765.00        4,647.58      M&A
                                                                                                                       2/12/2008      126.5             0.65           125.85        4,765.00        4,638.50      M&A
                                                                                                                       3/17/2008      49.14             0.65            48.49        4,765.00        4,715.86       V
                                                                                                                       3/17/2008      49.14             0.65            48.49        4,765.00        4,715.86       V
                                                                                                                       4/29/2008     256.31             0.65           255.66        4,765.00        4,508.69       V
                                                                                                                        5/2/2008     193.46             0.65           192.81        4,765.00        4,571.54      M&A
                                                                                                                        5/8/2008     279.83             0.65           279.18        4,765.00        4,485.17      M&A
                                                                                                                       5/16/2008     204.28             0.65           203.63        4,765.00        4,560.72       V
                                                                                                                       5/22/2008     183.52             0.65           182.87        4,765.00        4,581.48      M&A
                                                                                                                       6/23/2008     211.05             0.65           210.40        4,765.00        4,553.95      M&A
                                                                                                                       7/28/2008     354.29             0.65           353.64        4,765.00        4,410.71       V
                                                                                                                       8/26/2008       86.9             0.65            86.25        4,765.00        4,678.10       V
                                                                                                                        9/4/2008      60.53             0.65            59.88        4,765.00        4,704.47      M&A
                                                                                                                      10/30/2008      24.15             0.65            23.50        4,765.00        4,740.85      M&A
                                                                                                                       12/3/2008     108.88             0.65           108.23        4,765.00        4,656.12      M&A
                                                                                                                      12/19/2008         0              0.65            -0.65        4,765.00        4,765.00      M&A
                                                                                                                      12/29/2008         0              0.65            -0.65        4,765.00        4,765.00      M&A
                                                                                                                      12/30/2008         0              0.65            -0.65        4,765.00        4,765.00      M&A
                                                                                                                        1/9/2009         0              0.65            -0.65        4,766.00        4,766.00      M&A
                                                                                                                       1/21/2009         0              0.65            -0.65        4,766.00        4,766.00      M&A

      (D-18-16)30bab1             HC-5A               540        523,686   3,523,492     55-908883     5,136.94       7/27/2008      53.88              -0.24          54.12         5,136.70        5,082.58      M&A
                                                                                                                       7/29/2008      53.75             -0.24           53.99        5,136.70        5,082.71      M&A
                                                                                                                        8/8/2008      53.61             -0.24           53.85        5,136.70        5,082.85      M&A
                                                                                                                        9/4/2008      53.41             -0.24           53.65        5,136.70        5,083.05      M&A
                                                                                                                       9/15/2008      53.48             -0.24           53.72        5,136.70        5,082.98      M&A
                                                                                                                      10/30/2008      53.98             -0.24           54.22        5,136.70        5,082.48      M&A
                                                                                                                       12/4/2008     103.54              0.20          103.34        5,137.14        5,033.80      M&A
                                                                                                                      12/19/2008      91.36              0.20           91.16        5,137.14        5,045.98      M&A
                                                                                                                      12/22/2008      80.30              0.20           80.10        5,137.14        5,057.04      M&A
                                                                                                                      12/30/2008      70.40              0.20           70.20        5,137.14        5,066.94      M&A
                                                                                                                        1/9/2009      65.21              0.20           65.01        5,137.14        5,072.13      M&A
                                                                                                                       1/20/2009      62.35              0.20           62.15        5,137.14        5,074.99      M&A




1232/07/Tbl10_SumWLmeasurementsRPA.xls/10Feb2009
                                                    TABLE 1. SUMMARY OF GROUNDWATER LEVEL MEASUREMENTS FOR WELLS, PIEZOMETERS, AND DRILL HOLES
                                                                            ROSEMONT PROJECT AREA, PIMA COUNTY, ARIZONA
                                                                                                      Page 12 of 24



                                                                 WELL COORDINATES
                                                                      (NAD83)

                                                                                                         LAND                                                                      MEASURING          WATER
                                                    REPORTED                              ADWR        SURFACE                       DEPTH TO        MEASURING        DEPTH TO          POINT          LEVEL
            WELL                  WELL             WELL DEPTH   UTM-EAST UTM-NORTH     REGISTRATION   ALTITUDE        DATE OF        WATER         POINT HEIGHT       WATER         ALTITUDE        ALTITUDE       DATA
          LOCATION             IDENTIFIER             (feet)     (meters)  (meters)      NUMBER       (feet, msl)   MEASUREMENT    (feet, bmp) a     (feet, als) b   (feet, bls)    (feet, msl) c   (feet, msl)   SOURCEd

      (D-18-16)30bab2             HC-5B               1,000      523,691   3,523,484     55-908885     5,136.54       7/27/2008      107.13             -0.24          107.37        5,136.30        5,028.93      M&A
                                                                                                                        8/8/2008     128.98             -0.24          129.22        5,136.30        5,007.08      M&A
                                                                                                                        9/4/2008     105.36             -0.24          105.60        5,136.30        5,030.70      M&A
                                                                                                                       9/15/2008     102.76             -0.24          103.00        5,136.30        5,033.30      M&A
                                                                                                                      10/30/2008      98.14             -0.24           98.38        5,136.30        5,037.92      M&A
                                                                                                                       12/4/2008      99.92             -0.24          100.16        5,136.30        5,036.14      M&A
                                                                                                                      12/19/2008     103.22             -0.24          103.46        5,136.30        5,032.84      M&A
                                                                                                                      12/22/2008     101.96             -0.24          102.20        5,136.30        5,034.10      M&A
                                                                                                                      12/30/2008     100.54             -0.24          100.78        5,136.30        5,035.52      M&A
                                                                                                                        1/9/2009      99.50             -0.24           99.74        5,136.30        5,036.56      M&A
                                                                                                                       1/20/2009      98.90             -0.24           99.14        5,136.30        5,037.16      M&A

      (D-18-16)30bda          AR-2065 (C-1)         1,000 (?)    523,873   3,522,993        ---        5,072.95       8/25/2008        0.0              3.94           -3.94         5,076.89        5,080.83       V
                                                                                                                       9/29/2008        0.0             3.94           -3.94         5,076.90        5,080.84       V
                                                                                                                      10/23/2088        9.4             3.94            5.46         5,077.90        5,072.44       V
                                                                                                                      11/12/2008       0.83             3.94           -3.11         5,077.90        5,081.01       V
                                                                                                                      12/17/2008      20.49             3.94           16.55         5,077.90        5,057.41       V
                                                                                                                       1/15/2009      21.23             3.94           17.29         5,077.90        5,056.67      M&A

      (D-18-16)30bcc               PC-6               2,000      523,194   3,522,830     55-908872     5,354.95        9/4/2008      210.18             2.12           208.06        5,357.07        5,149.01      M&A
                                                                                                                       9/18/2008     210.25             2.12           208.13        5,357.07        5,148.94      M&A
                                                                                                                       10/6/2008     210.66             2.12           208.54        5,357.07        5,148.53      M&A
                                                                                                                      10/17/2008     210.46             2.12           208.34        5,357.07        5,148.73      M&A
                                                                                                                      10/23/2008     210.41             2.12           208.29        5,357.07        5,148.78      M&A
                                                                                                                      10/30/2008     210.41             2.12           208.29        5,357.07        5,148.78      M&A
                                                                                                                       12/4/2008     211.74             2.12           209.62        5,357.07        5,147.45      M&A
                                                                                                                      12/19/2008     212.54             2.12           210.42        5,357.07        5,146.65      M&A
                                                                                                                      12/30/2008     212.05             2.12           209.93        5,357.07        5,147.14      M&A
                                                                                                                        1/9/2009     211.92             2.12            209.8        5,358.07        5,148.27      M&A
                                                                                                                       1/21/2009     211.91             2.12           209.79        5,358.07        5,148.28      M&A

      (D-18-16)30cad1              PC-5               2,001      523,745   3,522,451     55-908870     5,140.70       6/23/2008        1.3              3.20           -1.90         5,143.90        5,145.80      M&A
                                                                                                                       7/30/2008       1.08             1.84           -0.76         5,142.54        5,143.30      M&A
                                                                                                                        8/8/2008       0.98             1.84           -0.86         5,142.54        5,143.40      M&A
                                                                                                                       8/11/2008       1.06             1.84           -0.78         5,142.54        5,143.32      M&A
                                                                                                                       8/30/2008       1.04             1.84           -0.80         5,142.54        5,143.34      M&A
                                                                                                                        9/4/2008       0.94             1.84           -0.90         5,142.54        5,143.44      M&A
                                                                                                                       9/24/2008       0.96             1.84           -0.88         5,142.54        5,143.42      M&A
                                                                                                                      10/18/2008       1.34             1.84           -0.50         5,142.54        5,143.04      M&A
                                                                                                                      10/30/2008       1.36             1.84           -0.48         5,142.54        5,143.02      M&A
                                                                                                                       12/4/2008      23.90             1.94           21.96         5,142.64        5,120.68      M&A
                                                                                                                      12/13/2008      24.20             2.59           21.61         5,143.29        5,121.68      M&A
                                                                                                                      12/19/2008       6.40             2.59            3.81         5,143.29        5,139.48      M&A
                                                                                                                      12/22/2008       4.55             2.59            1.96         5,143.29        5,141.33      M&A
                                                                                                                      12/29/2008       4.19             2.59            1.60         5,143.29        5,141.69      M&A




1232/07/Tbl10_SumWLmeasurementsRPA.xls/10Feb2009
                                                    TABLE 1. SUMMARY OF GROUNDWATER LEVEL MEASUREMENTS FOR WELLS, PIEZOMETERS, AND DRILL HOLES
                                                                            ROSEMONT PROJECT AREA, PIMA COUNTY, ARIZONA
                                                                                                      Page 13 of 24



                                                                 WELL COORDINATES
                                                                      (NAD83)

                                                                                                         LAND                                                                      MEASURING          WATER
                                                    REPORTED                              ADWR        SURFACE                       DEPTH TO        MEASURING        DEPTH TO          POINT          LEVEL
            WELL                  WELL             WELL DEPTH   UTM-EAST UTM-NORTH     REGISTRATION   ALTITUDE        DATE OF        WATER         POINT HEIGHT       WATER         ALTITUDE        ALTITUDE       DATA
          LOCATION             IDENTIFIER             (feet)     (meters)  (meters)      NUMBER       (feet, msl)   MEASUREMENT    (feet, bmp) a     (feet, als) b   (feet, bls)    (feet, msl) c   (feet, msl)   SOURCEd

      (D-18-16)30cad1          PC-5 (cont.)           2,001      523,745   3,522,451     55-908870     5,140.70       1/8/2009         3.94             2.59            1.35         5,143.29        5,141.94      M&A
                                                                                                                      1/20/2009        3.91             2.59            1.32         5,143.29        5,141.97      M&A

      (D-18-16)30cba               PC-1               1,020      523,425   3,522,568     55-906272     5,272.53       5/13/2007      125.78             1.80           123.98        5,274.33        5,148.55      M&A
                                                                                                                       5/23/2007     126.37             1.80           124.57        5,274.33        5,147.96      M&A
                                                                                                                       5/29/2007     126.49             1.80           124.69        5,274.33        5,147.84      M&A
                                                                                                                        6/3/2007     126.39             1.80           124.59        5,274.33        5,147.94      M&A
                                                                                                                        6/8/2007     126.41             1.80           124.61        5,274.33        5,147.92      M&A
                                                                                                                       6/25/2007     126.50             1.80           124.70        5,274.33        5,147.83      M&A
                                                                                                                       11/1/2007     127.35             1.80           125.55        5,274.33        5,146.98      M&A
                                                                                                                       1/15/2008     127.60             1.80           125.80        5,274.33        5,146.73      M&A
                                                                                                                       2/12/2008     127.87             1.80           126.07        5,274.33        5,146.46      M&A
                                                                                                                       3/15/2008     127.77             1.80           125.97        5,274.33        5,146.56      M&A
                                                                                                                       3/19/2008     126.75             1.80           124.95        5,274.33        5,147.58       V
                                                                                                                       4/21/2008     125.93             1.80           124.13        5,274.33        5,148.40       V
                                                                                                                       5/16/2008     127.85             1.80           126.05        5,274.33        5,146.48       V
                                                                                                                       6/19/2008     128.50             1.80           126.70        5,274.33        5,145.83       V
                                                                                                                       7/21/2008     127.95             1.80           126.15        5,274.33        5,146.38       V
                                                                                                                        8/8/2008     129.33             2.44           126.89        5,274.97        5,145.64      M&A
                                                                                                                       8/20/2008     129.65             1.80           127.85        5,274.33        5,144.68       V
                                                                                                                        9/4/2008     129.42             2.44           126.98        5,274.97        5,145.55      M&A
                                                                                                                      10/18/2008     129.70             2.44           127.26        5,274.97        5,145.27      M&A
                                                                                                                      10/23/2008     129.79             2.44           127.35        5,274.97        5,145.18      M&A
                                                                                                                       12/4/2008     130.53             2.44           128.09        5,274.97        5,144.44      M&A
                                                                                                                      12/19/2008     131.17             2.44           128.73        5,274.97        5,143.80      M&A
                                                                                                                      12/30/2008     131.33             2.44           128.89        5,274.97        5,143.64      M&A
                                                                                                                        1/9/2009     131.36             2.44           128.92        5,274.97        5,143.61      M&A
                                                                                                                       1/21/2009     131.37             2.44           128.93        5,274.97        5,143.60      M&A

      (D-18-16)30cdc               PC-2               1,503      523,520   3,522,142     55-214214     5,120.41       3/20/2007        0.00             3.03             ---         5,123.44        5,123.44      M&A
                                                                                                                      5/13/2007        0.00             3.03             ---         5,123.44        5,123.44      M&A
                                                                                                                      5/21/2007        0.00             3.03             ---         5,123.44        5,123.44      M&A
                                                                                                                      5/30/2007        0.00             3.03             ---         5,123.44        5,123.44      M&A
                                                                                                                      6/25/2007        0.00             3.03             ---         5,123.44        5,123.44      M&A
                                                                                                                      11/1/2007        0.00             3.03             ---         5,123.44        5,123.44      M&A
                                                                                                                      1/15/2008        0.00             3.03             ---         5,123.44        5,123.44      M&A
                                                                                                                      2/12/2008        0.00             3.03             ---         5,123.44        5,123.44      M&A
                                                                                                                      3/19/2008        0.00             3.03             ---         5,123.44        5,123.44       V
                                                                                                                      4/21/2008        0.00             3.03             ---         5,123.44        5,123.44       V
                                                                                                                       5/8/2008        0.00             3.03             ---         5,123.44        5,123.44      M&A
                                                                                                                      5/16/2008        0.00             3.03             ---         5,123.44        5,123.44       V
                                                                                                                      5/22/2008        0.00             3.03             ---         5,123.44        5,123.44      M&A
                                                                                                                      6/19/2008        0.00             3.03             ---         5,123.44        5,123.44       V
                                                                                                                      6/23/2008        0.00             3.03             ---         5,123.44        5,123.44      M&A
                                                                                                                      6/24/2008        0.00             3.03             ---         5,123.44        5,123.44      M&A




1232/07/Tbl10_SumWLmeasurementsRPA.xls/10Feb2009
                                                    TABLE 1. SUMMARY OF GROUNDWATER LEVEL MEASUREMENTS FOR WELLS, PIEZOMETERS, AND DRILL HOLES
                                                                            ROSEMONT PROJECT AREA, PIMA COUNTY, ARIZONA
                                                                                                      Page 14 of 24



                                                                 WELL COORDINATES
                                                                      (NAD83)

                                                                                                         LAND                                                                      MEASURING          WATER
                                                    REPORTED                              ADWR        SURFACE                       DEPTH TO        MEASURING        DEPTH TO          POINT          LEVEL
            WELL                  WELL             WELL DEPTH   UTM-EAST UTM-NORTH     REGISTRATION   ALTITUDE        DATE OF        WATER         POINT HEIGHT       WATER         ALTITUDE        ALTITUDE       DATA
          LOCATION             IDENTIFIER             (feet)     (meters)  (meters)      NUMBER       (feet, msl)   MEASUREMENT    (feet, bmp) a     (feet, als) b   (feet, bls)    (feet, msl) c   (feet, msl)   SOURCEd

      (D-18-16)30cdc           PC-2 (cont.)           1,503      523,520   3,522,142     55-214214     5,120.41       7/25/2008        0.00             3.03             ---         5,123.44        5,123.44       V
                                                                                                                       8/22/2008       0.00             3.03             ---         5,123.44        5,123.44       V
                                                                                                                       9/10/2008      -31.93            3.03             ---         5,123.44        5,155.37      M&A
                                                                                                                       9/18/2008      -34.78            3.03             ---         5,123.44        5,158.22      M&A
                                                                                                                      10/18/2008      -34.63            3.03             ---         5,123.44        5,158.07      M&A
                                                                                                                      10/23/2008      -34.21            3.03             ---         5,123.44        5,157.65      M&A
                                                                                                                      10/30/2008      -34.33            3.03             ---         5,123.44        5,157.77      M&A
                                                                                                                       12/4/2008      -32.20            3.03             ---         5,123.44        5,155.64      M&A
                                                                                                                      12/19/2008      -31.44            3.03           -34.47        5,123.44        5,154.88      M&A
                                                                                                                      12/29/2008      -32.68            3.03           -35.71        5,123.44        5,156.12      M&A
                                                                                                                        1/9/2009      -32.84            3.03           -35.87        5,123.44        5,156.28      M&A
                                                                                                                       1/20/2009      -33.02            3.03           -36.05        5,123.44        5,156.46      M&A

      (D-18-16)30cdd              A-886               108        523,683   3,522,088        ---        5,075.85       11/15/2006      30.30             1.15           29.15         5,077.00        5,046.70      M&A
                                                                                                                       5/14/2007      26.55             1.15           25.40         5,077.00        5,050.45      M&A
                                                                                                                       5/21/2007      27.12             1.15           25.97         5,077.00        5,049.88      M&A
                                                                                                                       5/25/2007      25.65             1.15           24.50         5,077.00        5,051.35      M&A
                                                                                                                       6/25/2007      25.70             1.15           24.55         5,077.00        5,051.30      M&A
                                                                                                                      10/31/2007      24.34             1.15           23.19         5,077.00        5,052.66      M&A
                                                                                                                       1/15/2008      23.42             1.15           22.27         5,077.00        5,053.58      M&A
                                                                                                                       2/12/2008      23.05             1.15           21.90         5,077.00        5,053.95      M&A
                                                                                                                       3/19/2008      22.87             1.15           21.72         5,077.00        5,054.13       V
                                                                                                                       4/21/2008      22.57             1.15           21.42         5,077.00        5,054.43       V
                                                                                                                       4/30/2008      22.52             1.15           21.37         5,077.00        5,054.48      M&A
                                                                                                                        5/8/2008      22.62             1.15           21.47         5,077.00        5,054.38      M&A
                                                                                                                       5/16/2008      22.93             1.15           21.78         5,077.00        5,054.07       V
                                                                                                                       5/22/2008      22.80             1.15           21.65         5,077.00        5,054.20      M&A
                                                                                                                       6/19/2008      23.75             1.15           22.60         5,077.00        5,053.25       V
                                                                                                                       6/23/2008      23.78             1.15           22.63         5,077.00        5,053.22      M&A
                                                                                                                       7/21/2008      22.18             1.15           21.03         5,077.00        5,054.82       V
                                                                                                                       7/29/2008      21.22             1.15           20.07         5,077.00        5,055.78      M&A
                                                                                                                       8/25/2008      20.25             1.15           19.10         5,077.00        5,056.75       V
                                                                                                                        9/4/2008      19.89             1.15           18.74         5,077.00        5,057.11      M&A
                                                                                                                      10/23/2008      19.14             1.15           17.99         5,077.00        5,057.86      M&A
                                                                                                                      10/30/2008      18.97             1.15           17.82         5,077.00        5,058.03      M&A
                                                                                                                       12/4/2008      18.72             1.15           17.57         5,077.00        5,058.28      M&A
                                                                                                                      12/19/2008      18.65             1.15           17.50         5,077.00        5,058.35      M&A
                                                                                                                      12/29/2008      18.42             1.15           17.27         5,077.00        5,058.58      M&A
                                                                                                                        1/8/2009      18.03             1.15           16.88         5,078.00        5,059.97      M&A
                                                                                                                       1/20/2009      17.74             1.15           16.59         5,078.00        5,060.26      M&A

      (D-18-16)31bbb               "9-7"              2,541      523,202   3,521,850     55-608631     5,137.36       10/2/2008       16.54             2.64           13.90         5,140.00        5,123.46       V
                                                                                                                      10/23/2008      17.98             2.64           15.34         5,140.00        5,122.02       V
                                                                                                                      11/18/2008      17.93             2.64           15.29         5,140.00        5,122.07       V
                                                                                                                      12/16/2008      17.62             2.64           14.98         5,140.00        5,122.38       V
                                                                                                                       1/15/2009      16.95             2.64           14.31         5,140.00        5,123.05      M&A




1232/07/Tbl10_SumWLmeasurementsRPA.xls/10Feb2009
                                                    TABLE 1. SUMMARY OF GROUNDWATER LEVEL MEASUREMENTS FOR WELLS, PIEZOMETERS, AND DRILL HOLES
                                                                            ROSEMONT PROJECT AREA, PIMA COUNTY, ARIZONA
                                                                                                      Page 15 of 24



                                                                 WELL COORDINATES
                                                                      (NAD83)

                                                                                                         LAND                                                                      MEASURING          WATER
                                                    REPORTED                              ADWR        SURFACE                       DEPTH TO        MEASURING        DEPTH TO          POINT          LEVEL
            WELL                  WELL             WELL DEPTH   UTM-EAST UTM-NORTH     REGISTRATION   ALTITUDE        DATE OF        WATER         POINT HEIGHT       WATER         ALTITUDE        ALTITUDE       DATA
          LOCATION             IDENTIFIER             (feet)     (meters)  (meters)      NUMBER       (feet, msl)   MEASUREMENT    (feet, bmp) a     (feet, als) b   (feet, bls)    (feet, msl) c   (feet, msl)   SOURCEd



      (D-18-16)31bbc               PC-3               1,360      523,290   3,521,599     55-214212     5,117.32       5/31/2007      150.64             3.84           146.80        5,121.16        4,970.52      M&A
                                                                                                                        6/8/2007     152.40             3.84           148.56        5,121.16        4,968.76      M&A
                                                                                                                       6/25/2007     149.62             1.30           148.32        5,118.62        4,969.00      M&A
                                                                                                                       11/1/2007     148.67             1.30           147.37        5,118.62        4,969.95      M&A
                                                                                                                       1/15/2008     148.39             1.30           147.09        5,118.62        4,970.23      M&A
                                                                                                                       2/12/2008     148.16             1.30           146.86        5,118.62        4,970.46      M&A
                                                                                                                       3/15/2008     147.46             1.30           146.16        5,118.62        4,971.16      M&A
                                                                                                                       3/19/2008     147.86             1.30           146.56        5,118.62        4,970.76       V
                                                                                                                       4/24/2008     147.31             1.30           146.01        5,118.62        4,971.31       V
                                                                                                                       5/16/2008     145.81             1.30           144.51        5,118.62        4,972.81       V
                                                                                                                       6/19/2008     127.30             1.30           126.00        5,118.62        4,991.32       V
                                                                                                                       7/21/2008     146.45             1.30           145.15        5,118.62        4,972.17       V
                                                                                                                       7/29/2008     146.28             1.30           144.98        5,118.62        4,972.34      M&A
                                                                                                                       8/20/2008     144.80             1.30           143.50        5,118.62        4,973.82       V
                                                                                                                        9/4/2008     144.80             1.30           143.50        5,118.62        4,973.82      M&A
                                                                                                                      10/30/2008     144.20             1.30           142.90        5,118.62        4,974.42      M&A
                                                                                                                       12/3/2008     143.36             1.30           142.06        5,118.62        4,975.26      M&A
                                                                                                                      12/19/2008     143.15             1.30           141.85        5,118.62        4,975.47      M&A
                                                                                                                      12/29/2008     142.90             1.30           141.60        5,118.62        4,975.72      M&A
                                                                                                                        1/8/2009     142.61             1.30           141.31        5,118.62        4,976.01      M&A
                                                                                                                       1/21/2009     142.52             1.30           141.22        5,118.62        4,976.10      M&A

      (D-18-16)31bbd             AR-2050              1,000      523,309   3,521,601        ---        5,112.73       11/16/2006      45.38             2.80           42.58         5,115.53        5,070.15      M&A
                                                                                                                        5/9/2007      52.36             2.80           49.56         5,115.53        5,063.17      M&A
                                                                                                                       5/30/2007      54.55             2.80           51.75         5,115.53        5,060.98      M&A
                                                                                                                       5/31/2007      52.80             2.80           50.00         5,115.53        5,062.73      M&A
                                                                                                                        6/3/2007      55.35             2.80           52.55         5,115.53        5,060.18      M&A
                                                                                                                        6/8/2007      56.80             2.80           54.00         5,115.53        5,058.73      M&A
                                                                                                                       6/26/2007      57.28             2.80           54.48         5,115.53        5,058.25      M&A
                                                                                                                       11/1/2007      64.05             2.80           61.25         5,115.53        5,051.48      M&A
                                                                                                                       1/15/2008      65.47             2.80           62.67         5,115.53        5,050.06      M&A
                                                                                                                       2/12/2008      66.42             2.80           63.62         5,115.53        5,049.11      M&A
                                                                                                                       3/15/2008      67.52             2.80           64.72         5,115.53        5,048.01      M&A
                                                                                                                       3/18/2008      66.83             2.80           64.03         5,115.53        5,048.70       V
                                                                                                                       4/24/2008      69.95             2.80           67.15         5,115.53        5,045.58       V
                                                                                                                       5/16/2008      69.65             2.80           66.85         5,115.53        5,045.88       V
                                                                                                                       6/19/2008      74.00             2.80           71.20         5,115.53        5,041.53       V
                                                                                                                       7/21/2008      73.08             2.80           70.28         5,115.53        5,042.45       V
                                                                                                                       7/29/2008      71.62             2.80           68.82         5,115.53        5,043.91      M&A
                                                                                                                       8/20/2008      71.10             2.80           68.30         5,115.53        5,044.43       V
                                                                                                                        9/4/2008      70.66             2.80           67.86         5,115.53        5,044.87      M&A
                                                                                                                      10/30/2008      72.28             2.80           69.48         5,115.53        5,043.25      M&A
                                                                                                                       12/3/2008      73.33             2.80           70.53         5,115.53        5,042.20      M&A
                                                                                                                      12/19/2008      73.50             2.80           70.70         5,115.53        5,042.03      M&A
                                                                                                                      12/29/2008      73.40             2.80           70.60         5,115.53        5,042.13      M&A
                                                                                                                        1/8/2009      73.42             2.80           70.62         5,116.53        5,043.11      M&A
                                                                                                                       1/21/2009      73.92             2.80           71.12         5,116.53        5,042.61      M&A




1232/07/Tbl10_SumWLmeasurementsRPA.xls/10Feb2009
                                                    TABLE 1. SUMMARY OF GROUNDWATER LEVEL MEASUREMENTS FOR WELLS, PIEZOMETERS, AND DRILL HOLES
                                                                            ROSEMONT PROJECT AREA, PIMA COUNTY, ARIZONA
                                                                                                      Page 16 of 24



                                                                 WELL COORDINATES
                                                                      (NAD83)

                                                                                                         LAND                                                                          MEASURING          WATER
                                                    REPORTED                              ADWR        SURFACE                           DEPTH TO        MEASURING        DEPTH TO          POINT          LEVEL
            WELL                  WELL             WELL DEPTH   UTM-EAST UTM-NORTH     REGISTRATION   ALTITUDE        DATE OF            WATER         POINT HEIGHT       WATER         ALTITUDE        ALTITUDE       DATA
          LOCATION             IDENTIFIER             (feet)     (meters)  (meters)      NUMBER       (feet, msl)   MEASUREMENT        (feet, bmp) a     (feet, als) b   (feet, bls)    (feet, msl) c   (feet, msl)   SOURCEd

      (D-18-16)31cbb               AH-8               700        523,196   3,521,056     55-532115     5,160.00        5/6/2006          107.60             0.60           107.00        5,160.60        5,053.00      M&A
                                                                                                                      11/16/2006         107.50             0.60           106.90        5,160.60        5,053.10      M&A
                                                                                                                        5/9/2007         108.03             0.60           107.43        5,160.60        5,052.57      M&A
                                                                                                                       5/17/2007         108.24             0.60           107.64        5,160.60        5,052.36      M&A
                                                                                                                        6/8/2007         108.32             0.60           107.72        5,160.60        5,052.28      M&A
                                                                                                                       6/25/2007         107.96             0.60           107.36        5,160.60        5,052.64      M&A
                                                                                                                      10/31/2007         106.43             0.60           105.83        5,160.60        5,054.17      M&A
                                                                                                                       1/15/2008         106.13             0.60           105.53        5,160.60        5,054.47      M&A
                                                                                                                       2/12/2008         106.05             0.60           105.45        5,160.60        5,054.55      M&A
                                                                                                                       3/19/2008         106.11             0.60           105.51        5,160.60        5,054.49       V
                                                                                                                       4/24/2008         106.18             0.60           105.58        5,160.60        5,054.42       V
                                                                                                                        5/8/2008         105.94             0.60           105.34        5,160.60        5,054.66      M&A
                                                                                                                       5/16/2008         106.15             0.60           105.55        5,160.60        5,054.45       V
                                                                                                                       5/22/2008         106.00             0.60           105.40        5,160.60        5,054.60      M&A
                                                                                                                       6/19/2008         106.40             0.60           105.80        5,160.60        5,054.20       V
                                                                                                                       6/23/2008         106.27             0.60           105.67        5,160.60        5,054.33      M&A
                                                                                                                       7/21/2008         107.15             0.60           106.55        5,160.60        5,053.45       V
                                                                                                                       7/29/2008         106.00             0.60           105.40        5,160.60        5,054.60      M&A
                                                                                                                       8/25/2008         106.15             0.60           105.55        5,160.60        5,054.45       V
                                                                                                                        9/4/2008         105.66             0.60           105.06        5,160.60        5,054.94      M&A
                                                                                                                      10/30/2008         105.78             0.60           105.18        5,160.60        5,054.82      M&A
                                                                                                                       12/3/2008         105.81             0.60           105.21        5,160.60        5,054.79      M&A
                                                                                                                      12/19/2008         105.87             0.60           105.27        5,160.60        5,054.73      M&A
                                                                                                                      12/29/2008         105.92             0.60           105.32        5,160.60        5,054.68      M&A
                                                                                                                        1/8/2009         105.79             0.60           105.19        5,161.60        5,055.81      M&A
                                                                                                                       1/20/2009         105.87             0.60           105.27        5,161.60        5,055.73      M&A

      (D-18-16)32bdc1             Gayler              560        525,188   3,521,229     55-564306     4,860.58        -- / -- /1966     94.00              0.00           94.00         4,860.58        4,766.58      Driller
                                                                                                                        08/11/75         93.88              0.70           93.18         4,860.58        4,766.70        H
                                                                                                                       4/29/2006         59.86              0.10            59.76        4,860.58        4,800.72      M&A
                                                                                                                      11/15/2006         64.72              0.10            64.62        4,860.58        4,795.86      M&A
                                                                                                                       6/25/2007          >155'             0.10              ---        4,860.58           ---        M&A
                                                                                                                      10/31/2007          49.27             0.10            49.17        4,860.58        4,811.31      M&A
                                                                                                                       1/15/2008          42.56             0.10            42.46        4,860.58        4,818.02      M&A
                                                                                                                       2/12/2008          41.83             0.10            41.73        4,860.58        4,818.75      M&A
                                                                                                                       3/17/2008          42.71             0.10            42.61        4,860.58        4,817.87        V
                                                                                                                       4/28/2008          42.75             0.10            42.65        4,860.58        4,817.83        V
                                                                                                                       4/30/2008          42.35             0.10            42.25        4,860.58        4,818.23      M&A
                                                                                                                        5/8/2008          43.65             0.10            43.55        4,860.58        4,816.93      M&A
                                                                                                                       5/16/2008          41.74             0.10            41.64        4,860.58        4,818.84        V
                                                                                                                       5/22/2008           45.6             0.10             45.5        4,860.58        4,814.98      M&A
                                                                                                                       6/16/2008          98.28             0.10            98.18        4,860.58        4,762.30        V
                                                                                                                       6/23/2008         129.35             0.10           129.25        4,860.58        4,731.23      M&A
                                                                                                                        7/9/2008         174.29             0.10           174.19        4,860.58        4,686.29      M&A
                                                                                                                       7/10/2008         119.11             0.10           119.01        4,860.58        4,741.47      M&A
                                                                                                                       7/21/2008          57.12             0.10            57.02        4,860.58        4,803.46        V
                                                                                                                       7/29/2008           51.7             0.10             51.6        4,860.58        4,808.88      M&A




1232/07/Tbl10_SumWLmeasurementsRPA.xls/10Feb2009
                                                    TABLE 1. SUMMARY OF GROUNDWATER LEVEL MEASUREMENTS FOR WELLS, PIEZOMETERS, AND DRILL HOLES
                                                                            ROSEMONT PROJECT AREA, PIMA COUNTY, ARIZONA
                                                                                                      Page 17 of 24



                                                                 WELL COORDINATES
                                                                      (NAD83)

                                                                                                         LAND                                                                      MEASURING          WATER
                                                    REPORTED                              ADWR        SURFACE                       DEPTH TO        MEASURING        DEPTH TO          POINT          LEVEL
            WELL                  WELL             WELL DEPTH   UTM-EAST UTM-NORTH     REGISTRATION   ALTITUDE        DATE OF        WATER         POINT HEIGHT       WATER         ALTITUDE        ALTITUDE       DATA
          LOCATION             IDENTIFIER             (feet)     (meters)  (meters)      NUMBER       (feet, msl)   MEASUREMENT    (feet, bmp) a     (feet, als) b   (feet, bls)    (feet, msl) c   (feet, msl)   SOURCEd

      (D-18-16)32bdc1         Gayler (cont.)          560        525,188   3,521,229     55-564306     4,860.48       8/22/2008       37.85             0.10           37.75         4,860.58        4,822.73       V
                                                                                                                        9/4/2008      47.46             0.10           47.36         4,860.58        4,813.12      M&A
                                                                                                                        10/30/08      47.29             0.10           47.19         4,860.58        4,813.29      M&A
                                                                                                                       12/3/2008      47.76             0.10           47.66         4,860.58        4,812.82      M&A
                                                                                                                      12/19/2008      54.85             0.10           54.75         4,860.58        4,805.73      M&A
                                                                                                                      12/29/2008      51.91             0.10           51.81         4,860.58        4,808.67      M&A
                                                                                                                        1/8/2009      69.69             0.10           69.59         4,861.58        4,791.89      M&A
                                                                                                                       1/20/2009      55.73             0.10           55.63         4,861.58        4,805.85      M&A

      (D-18-16)32bdc2            Gayler2               ---       525,178   3,521,231        ---        4,860.60       4/30/2008      43.24              0.40           42.84         4,861.00        4,817.76      M&A
                                                                                                                       5/20/2008      45.30             0.40            44.90        4,861.00        4,815.70       V
                                                                                                                       6/16/2008     122.67             0.40           122.27        4,861.00        4,738.33       V
                                                                                                                       7/21/2008      61.53             0.40            61.13        4,861.00        4,799.47       V
                                                                                                                       8/22/2008      51.00             0.40            50.60        4,861.00        4,810.00       V
                                                                                                                       9/26/2008      49.90             0.40            49.50        4,861.00        4,811.10       V
                                                                                                                      10/20/2008      60.25             0.40            59.85        4,861.00        4,800.75       V
                                                                                                                      11/11/2008      76.88             0.40            76.48        4,861.00        4,784.12       V
                                                                                                                      12/10/2008      91.60             0.40            91.20        4,861.00        4,769.40       V
                                                                                                                      12/29/2008       ---               ---             ---            ---             ---        M&A
                                                                                                                       1/13/2009      50.63             0.40            50.23        4,861.00        4,810.37      M&A

      (D-18-16)32ccb             DH-1537              1,300      524,822   3,520,542     55-608627     4,930.10       11/13/1975       9.5               0.90            8.6         4,931.00        4,921.50       H
                                                                                                                       3/31/1982        ---               ---           78.54        4,931.00        4,852.46      GWSI
                                                                                                                      12/14/1987        ---               ---           55.04        4,931.00        4,875.96      GWSI
                                                                                                                       2/14/2005        ---               ---            37.6        4,931.00        4,893.40      GWSI
                                                                                                                        5/6/2006      38.12              0.90           37.22        4,931.00        4,892.88      M&A
                                                                                                                      11/15/2006      38.44              0.90           37.54        4,931.00        4,892.56      M&A
                                                                                                                       6/25/2007      38.03              0.90           37.13        4,931.00        4,892.97      M&A
                                                                                                                      10/31/2007      37.58              0.90           36.68        4,931.00        4,893.42      M&A
                                                                                                                       1/15/2008      37.45              0.90           36.55        4,931.00        4,893.55      M&A
                                                                                                                       2/12/2008      37.40              0.90            36.5        4,931.00        4,893.60      M&A
                                                                                                                       3/17/2008      37.28              0.90           36.38        4,931.00        4,893.72       V
                                                                                                                       4/28/2008      37.45              0.90           36.55        4,931.00        4,893.55       V
                                                                                                                        5/2/2008      37.60              0.90            36.7        4,931.00        4,893.40      M&A
                                                                                                                        5/8/2008      37.32              0.90           36.42        4,931.00        4,893.68      M&A
                                                                                                                       5/16/2008      37.50              0.90            36.6        4,931.00        4,893.50       V
                                                                                                                       6/16/2008      37.59              0.90           36.69        4,931.00        4,893.41       V
                                                                                                                       6/23/2008      37.40              0.90            36.5        4,931.00        4,893.60      M&A
                                                                                                                       7/21/2008      37.38              0.90           36.48        4,931.00        4,893.62       V
                                                                                                                       7/29/2008      37.35              0.90           36.45        4,931.00        4,893.65      M&A
                                                                                                                       8/22/2008      37.30             -0.18          37.475        4,931.00        4,893.70       V
                                                                                                                        9/4/2008      37.07             -0.18          37.245        4,931.00        4,893.93      M&A
                                                                                                                      10/30/2008      35.03             -0.18          35.205        4,931.00        4,895.97      M&A
                                                                                                                      11/14/2008      36.98              0.90           36.08        4,931.00        4,894.02      M&A
                                                                                                                       12/3/2008      36.89              0.90           35.99        4,931.00        4,894.11      M&A
                                                                                                                        1/8/2009      36.79              0.90           35.89        4,931.00        4,894.21      M&A




1232/07/Tbl10_SumWLmeasurementsRPA.xls/10Feb2009
                                                    TABLE 1. SUMMARY OF GROUNDWATER LEVEL MEASUREMENTS FOR WELLS, PIEZOMETERS, AND DRILL HOLES
                                                                            ROSEMONT PROJECT AREA, PIMA COUNTY, ARIZONA
                                                                                                      Page 18 of 24



                                                                 WELL COORDINATES
                                                                      (NAD83)

                                                                                                         LAND                                                                      MEASURING          WATER
                                                    REPORTED                              ADWR        SURFACE                       DEPTH TO        MEASURING        DEPTH TO          POINT          LEVEL
            WELL                  WELL             WELL DEPTH   UTM-EAST UTM-NORTH     REGISTRATION   ALTITUDE        DATE OF        WATER         POINT HEIGHT       WATER         ALTITUDE        ALTITUDE       DATA
          LOCATION             IDENTIFIER             (feet)     (meters)  (meters)      NUMBER       (feet, msl)   MEASUREMENT    (feet, bmp) a     (feet, als) b   (feet, bls)    (feet, msl) c   (feet, msl)   SOURCEd

      (D-18-16)32caa1             RP-4A               550        525,486   3,520,871     55-908886     5,020.96       7/27/2008      181.49             -0.25          181.74        5,020.71        4,839.22      M&A
                                                                                                                       9/15/2008     181.42             -0.25          181.67        5,020.71        4,839.29      M&A
                                                                                                                       9/18/2008     181.44             -0.25          181.69        5,020.71        4,839.27       V
                                                                                                                      10/28/2008     181.58             -0.25          181.83        5,020.71        4,839.13       V
                                                                                                                      10/30/2008      181.2             -0.25          181.45        5,020.71        4,839.51      M&A
                                                                                                                      11/11/2008     180.35             -0.25          180.60        5,020.71        4,840.36       V
                                                                                                                      11/14/2008     181.02             -0.25          181.27        5,020.71        4,839.69      M&A
                                                                                                                       12/3/2008     181.10             -0.25          181.35        5,020.71        4,839.61      M&A
                                                                                                                      12/10/2008     181.54             -0.25          181.79        5,020.71        4,839.17       V
                                                                                                                      12/19/2008     181.20             -0.25          181.45        5,020.71        4,839.51      M&A
                                                                                                                      12/29/2008     181.35             -0.25          181.60        5,020.71        4,839.36      M&A
                                                                                                                        1/8/2009     181.27             -0.25          181.52        5,020.71        4,839.44      M&A
                                                                                                                       1/13/2009     181.41             -0.25          181.66        5,020.71        4,839.30      M&A
                                                                                                                      1/20/2009      181.28             -0.25          181.53        5,020.71        4,839.43      M&A

      (D-18-16)32caa2             RP-4B               1,000      525,484   3,520,862     55-908887     5,021.26       7/27/2008      199.12             -0.41          199.53        5,020.85        4,821.73      M&A
                                                                                                                       9/15/2008     196.74             -0.41          197.15        5,020.85        4,824.11      M&A
                                                                                                                       9/18/2008     196.72             -0.41          197.13        5,020.85        4,824.13       V
                                                                                                                      10/28/2008     196.08             -0.41          196.49        5,020.85        4,824.77       V
                                                                                                                      10/30/2008     195.66             -0.41          196.07        5,020.85        4,825.19      M&A
                                                                                                                      11/11/2008     194.63             -0.41          195.04        5,020.85        4,826.22       V
                                                                                                                      11/14/2008     195.31             -0.41          195.72        5,020.85        4,825.54      M&A
                                                                                                                       12/3/2008     195.10             -0.41          195.51        5,020.85        4,825.75      M&A
                                                                                                                      12/10/2008     195.47             -0.41          195.88        5,020.85        4,825.38       V
                                                                                                                      12/19/2008     195.00             -0.41          195.41        5,020.85        4,825.85      M&A
                                                                                                                      12/27/2008     194.89             -0.41          195.30        5,020.85        4,825.96      M&A
                                                                                                                        1/8/2009     194.75             -0.41          195.16        5,020.85        4,826.10      M&A
                                                                                                                       1/13/2009     194.81             -0.41          195.22        5,020.85        4,826.04      M&A
                                                                                                                      1/20/2009      194.70             -0.41          195.11        5,020.85        4,826.15      M&A

      (D-18-16)33bbc1             RP-3A               440        526,328   3,521,634     55-909054     4,821.35       7/27/2008       69.78             -0.36          70.14         4,820.99        4,751.21      M&A
                                                                                                                       9/15/2008      69.25             -0.36          69.61         4,820.99        4,751.74      M&A
                                                                                                                       9/18/2008      69.29             -0.36          69.65         4,820.99        4,751.70       V
                                                                                                                      10/27/2008      69.18             -0.36          69.54         4,820.99        4,751.81       V
                                                                                                                      10/30/2008      68.93             -0.36          69.29         4,820.99        4,752.06      M&A
                                                                                                                      11/11/2008       69.2             -0.36          69.56         4,820.99        4,751.79       V
                                                                                                                       12/4/2008      69.13             -0.36          69.49         4,820.99        4,751.86      M&A
                                                                                                                      12/10/2008       70.7             -0.36          71.06         4,820.99        4,750.29       V
                                                                                                                      12/13/2008      70.74             -0.36          71.10         4,820.99        4,750.25      M&A
                                                                                                                      12/19/2008      70.01             -0.36          70.37         4,820.99        4,750.98      M&A
                                                                                                                      12/22/2008      70.83             -0.36          71.19         4,820.99        4,750.16      M&A
                                                                                                                      12/29/2008      70.84             -0.36          71.20         4,820.99        4,750.15      M&A
                                                                                                                        1/8/2009      70.66             -0.36          71.02         4,820.99        4,750.33      M&A
                                                                                                                       1/13/2009      70.66             -0.36          71.02         4,820.99        4,750.33      M&A
                                                                                                                       1/21/2009      70.38             -0.36          70.74         4,820.99        4,750.61      M&A




1232/07/Tbl10_SumWLmeasurementsRPA.xls/10Feb2009
                                                    TABLE 1. SUMMARY OF GROUNDWATER LEVEL MEASUREMENTS FOR WELLS, PIEZOMETERS, AND DRILL HOLES
                                                                            ROSEMONT PROJECT AREA, PIMA COUNTY, ARIZONA
                                                                                                      Page 19 of 24



                                                                 WELL COORDINATES
                                                                      (NAD83)

                                                                                                         LAND                                                                      MEASURING          WATER
                                                    REPORTED                              ADWR        SURFACE                       DEPTH TO        MEASURING        DEPTH TO          POINT          LEVEL
            WELL                  WELL             WELL DEPTH   UTM-EAST UTM-NORTH     REGISTRATION   ALTITUDE        DATE OF        WATER         POINT HEIGHT       WATER         ALTITUDE        ALTITUDE       DATA
          LOCATION             IDENTIFIER             (feet)     (meters)  (meters)      NUMBER       (feet, msl)   MEASUREMENT    (feet, bmp) a     (feet, als) b   (feet, bls)    (feet, msl) c   (feet, msl)   SOURCEd

      (D-18-16)33bbc2             RP-3B               600        526,332   3,521,643     55-909056     4,821.46       7/27/2008      101.31             -0.53          101.84        4,820.93        4,719.62      M&A
                                                                                                                       9/15/2008      97.36             -0.53           97.89        4,820.93        4,723.57      M&A
                                                                                                                       9/18/2008      97.34             -0.53           97.87        4,820.93        4,723.59       V
                                                                                                                      10/27/2008      97.15             -0.53           97.68        4,820.93        4,723.78       V
                                                                                                                      10/30/2008      96.75             -0.53           97.28        4,820.93        4,724.18      M&A
                                                                                                                      11/11/2008      96.97             -0.53           97.50        4,820.93        4,723.96       V
                                                                                                                       12/4/2008     243.83              0.43          243.40        4,821.89        4,578.06      M&A
                                                                                                                      12/12/2008      195.6              0.43          195.17        4,821.89        4,626.29       V
                                                                                                                      12/13/2008     182.73              0.43          182.30        4,821.89        4,639.16      M&A
                                                                                                                      12/19/2008     146.80              0.43          146.37        4,821.89        4,675.09      M&A
                                                                                                                      12/22/2008     136.66              0.43          136.23        4,821.89        4,685.23      M&A
                                                                                                                      12/29/2008     122.51              0.43          122.08        4,821.89        4,699.38      M&A
                                                                                                                        1/8/2009     111.53              0.43          111.10        4,821.89        4,710.36      M&A
                                                                                                                       1/13/2009     108.63              0.43          108.20        4,821.89        4,713.26      M&A
                                                                                                                       1/20/2009     105.81              0.43          105.38        4,821.89        4,716.08      M&A

      (D-18-16)34bda             DH-1497              850        528,705   3,521,480        ---        4,775.10        8/7/1975         ---              ---            133.4        4,775.60        4,642.20        H
                                                                                                                       12/8/1980        ---              ---           132.18        4,775.60        4,643.42       HM
                                                                                                                       1/19/1982        ---              ---           132.23        4,775.60        4,643.37       HM
                                                                                                                       3/31/1982        ---              ---            131.0        4,775.60        4,644.60      GWSI
                                                                                                                      12/15/1987        ---              ---            129.4        4,775.60        4,646.20      GWSI
                                                                                                                       2/14/2005        ---              ---            130.1        4,775.60        4,645.50      GWSI
                                                                                                                       2/18/2008      131.5             0.50           130.97        4,775.60        4,644.13      M&A
                                                                                                                       3/17/2008      131.5             0.50           130.95        4,775.60        4,644.15        V
                                                                                                                       4/23/2008      131.6             0.50           131.05        4,775.60        4,644.05        V
                                                                                                                       5/16/2008      129.7             0.50           129.18        4,776.60        4,646.92        V
                                                                                                                       6/18/2008      131.8             0.50           131.26        4,776.60        4,644.84        V
                                                                                                                       7/25/2008      131.5             0.50           131.01        4,776.60        4,645.09        V
                                                                                                                       8/28/2008      131.6             0.50           131.05        4,776.60        4,645.05        V
                                                                                                                       9/19/2008      131.5             0.50           131.03        4,776.60        4,645.07        V
                                                                                                                      10/21/2008      131.4             0.50           130.90        4,776.60        4,645.20        V
                                                                                                                      11/13/2008      131.6             0.50           131.10        4,776.60        4,645.00        V
                                                                                                                      12/15/2008      131.6             0.50           131.12        4,776.60        4,644.98        V
                                                                                                                       1/13/2009      131.4             0.50           130.93        4,776.60        4,645.17      M&A

      (D-19-16)1bab1              HC-1A               440        522,015   3,520,122     55-908879     5,649.80       9/19/2008      220.22             -0.35          220.57        5,649.45        5,429.23       V
                                                                                                                      10/20/2008     220.25             -0.35          220.60        5,649.45        5,429.20       V
                                                                                                                      11/11/2008      220.4             -0.35          220.75        5,649.45        5,429.05       V
                                                                                                                      11/14/2008     220.05             -0.35          220.40        5,649.45        5,429.40      M&A
                                                                                                                       12/3/2008     230.85             -0.35          231.20        5,649.45        5,418.60      M&A
                                                                                                                      12/19/2008      237.2             -0.35          237.55        5,649.45        5,412.25      M&A
                                                                                                                      12/22/2008     232.44             -0.35          232.79        5,649.45        5,417.01      M&A
                                                                                                                      12/29/2008     229.78             -0.35          230.13        5,649.45        5,419.67      M&A
                                                                                                                        1/8/2009     227.86             -0.35          228.21        5,649.45        5,421.59      M&A
                                                                                                                       1/20/2009     226.69             -0.35          227.04        5,649.45        5,422.76      M&A




1232/07/Tbl10_SumWLmeasurementsRPA.xls/10Feb2009
                                                    TABLE 1. SUMMARY OF GROUNDWATER LEVEL MEASUREMENTS FOR WELLS, PIEZOMETERS, AND DRILL HOLES
                                                                            ROSEMONT PROJECT AREA, PIMA COUNTY, ARIZONA
                                                                                                      Page 20 of 24



                                                                 WELL COORDINATES
                                                                      (NAD83)

                                                                                                         LAND                                                                      MEASURING          WATER
                                                    REPORTED                              ADWR        SURFACE                       DEPTH TO        MEASURING        DEPTH TO          POINT          LEVEL
            WELL                  WELL             WELL DEPTH   UTM-EAST UTM-NORTH     REGISTRATION   ALTITUDE        DATE OF        WATER         POINT HEIGHT       WATER         ALTITUDE        ALTITUDE       DATA
          LOCATION             IDENTIFIER             (feet)     (meters)  (meters)      NUMBER       (feet, msl)   MEASUREMENT    (feet, bmp) a     (feet, als) b   (feet, bls)    (feet, msl) c   (feet, msl)   SOURCEd

      (D-19-16)1bab2              HC-1B               1,000      522,016   3,520,113     55-908880     5,649.93       7/27/2008      221.44             -0.59          222.03        5,649.34        5,427.90      M&A
                                                                                                                       9/15/2008     220.09             -0.59          220.68        5,649.34        5,429.25      M&A
                                                                                                                       9/19/2008     220.01             -0.59          220.60        5,649.34        5,429.33       V
                                                                                                                      10/20/2008     221.99             -0.59          222.58        5,649.34        5,427.35       V
                                                                                                                      11/11/2008     220.14             -0.59          220.73        5,649.34        5,429.20       V
                                                                                                                      12/19/2008     237.19              0.15          237.04        5,650.08        5,412.89      M&A
                                                                                                                      12/22/2008     232.68              0.15          232.53        5,650.08        5,417.40      M&A
                                                                                                                      12/29/2008     230.15              0.15          230.00        5,650.08        5,419.93      M&A
                                                                                                                        1/8/2009     228.26              0.15          228.11        5,650.08        5,421.82      M&A
                                                                                                                       1/13/2009     227.67              0.15          227.52        5,650.08        5,422.41      M&A
                                                                                                                       1/20/2009     227.15              0.15          227.00        5,650.08        5,422.93      M&A

      (D-19-16)02ccd        Oaktree Windmill          262        529,798   3,518,925     55-634318     4,890.00       11/10/1972      196.6             0.00           196.60        4,890.00        4,693.40      GWSI
                                                                                                                       3/24/1982      201.0             0.00           201.00        4,890.00        4,689.00      GWSI
                                                                                                                      12/11/1987      199.9             0.00           199.90        4,890.00        4,690.10      GWSI
                                                                                                                       2/14/2005      199.9             0.00           199.90        4,890.00        4,690.10      GWSI
                                                                                                                       1/17/2008      204.3             2.89           201.42        4,892.89        4,688.58      M&A
                                                                                                                       2/12/2008      204.5             2.89           201.62        4,892.89        4,688.38      M&A
                                                                                                                       3/18/2008      204.7             2.89           201.81        4,892.89        4,688.19       V
                                                                                                                       4/21/2008      204.6             2.89           201.72        4,892.89        4,688.28       V
                                                                                                                       5/19/2008      204.6             2.89           201.66        4,893.89        4,689.34       V
                                                                                                                       6/16/2008      205.5             2.89           202.56        4,893.89        4,688.44       V
                                                                                                                       7/23/2008      204.7             2.89           201.79        4,893.89        4,689.21       V
                                                                                                                       8/21/2008      204.4             2.89           201.49        4,893.89        4,689.51       V
                                                                                                                       9/19/2008      204.6             2.89           201.73        4,893.89        4,689.27       V
                                                                                                                      10/28/2008      204.8             2.89           201.95        4,893.89        4,689.05       V
                                                                                                                      11/18/2008      204.8             2.89           201.93        4,893.89        4,689.07       V
                                                                                                                      12/15/2008      205.0             2.89           202.08        4,893.89        4,688.92       V
                                                                                                                       1/13/2009      204.5             2.89           201.62        4,893.89        4,689.38      M&A

      (D-19-16)04dbb             DH-1541              700        527,310   3,519,422        ---        5,180.00       11/12/1975       ---               ---           407.8         5,180.00        4,772.20        H
                                                                                                                       12/8/1980       ---               ---           409.88        5,180.00        4,770.12       HM
                                                                                                                       1/14/1982       ---               ---           409.51        5,180.00        4,770.49       HM
                                                                                                                       3/29/1982       ---               ---            407.8        5,180.00        4,772.20      GWSI
                                                                                                                      12/11/1987       ---               ---            405.5        5,180.00        4,774.50      GWSI
                                                                                                                       2/14/2005       ---               ---            405.3        5,180.00        4,774.70      GWSI
                                                                                                                       2/12/2008     408.21             1.35           406.86        5,180.00        4,771.79      M&A
                                                                                                                       3/17/2008     407.02             1.35           405.67        5,180.00        4,772.98        V
                                                                                                                       4/21/2008     406.08             1.35           404.73        5,180.00        4,773.92        V
                                                                                                                       5/16/2008     406.32             1.35           404.97        5,181.00        4,774.68        V
                                                                                                                       6/16/2008     406.25             1.35           404.90        5,181.00        4,774.75        V
                                                                                                                       7/21/2008     406.98             1.35           405.63        5,181.00        4,774.02        V
                                                                                                                       8/21/2008     406.31             1.35           404.96        5,181.00        4,774.69        V
                                                                                                                       9/19/2008     406.00             1.35           404.65        5,181.00        4,775.00        V
                                                                                                                      10/31/2008     406.21             1.35           404.86        5,181.00        4,774.79        V
                                                                                                                      11/11/2008     405.60             1.35           404.25        5,181.00        4,775.40        V
                                                                                                                      12/10/2008     406.32             1.35           404.97        5,181.00        4,774.68        V
                                                                                                                       1/13/2009       ---               ---              ---           ---             ---        M&A




1232/07/Tbl10_SumWLmeasurementsRPA.xls/10Feb2009
                                                    TABLE 1. SUMMARY OF GROUNDWATER LEVEL MEASUREMENTS FOR WELLS, PIEZOMETERS, AND DRILL HOLES
                                                                            ROSEMONT PROJECT AREA, PIMA COUNTY, ARIZONA
                                                                                                       Page 21 of 24



                                                                 WELL COORDINATES
                                                                      (NAD83)

                                                                                                          LAND                                                                      MEASURING          WATER
                                                    REPORTED                               ADWR        SURFACE                       DEPTH TO        MEASURING        DEPTH TO          POINT          LEVEL
            WELL                  WELL             WELL DEPTH   UTM-EAST UTM-NORTH      REGISTRATION   ALTITUDE        DATE OF        WATER         POINT HEIGHT       WATER         ALTITUDE        ALTITUDE       DATA
          LOCATION             IDENTIFIER             (feet)     (meters)  (meters)       NUMBER       (feet, msl)   MEASUREMENT    (feet, bmp) a     (feet, als) b   (feet, bls)    (feet, msl) c   (feet, msl)   SOURCEd



      (D-19-16)6aad1              HC-2A               740       3,524,537   3,519,926     55-909047     5,000.22       7/27/2008       49.38             -0.24          49.62         4,999.98        4,950.60      M&A
                                                                                                                         8/8/2008      47.54             -0.24          47.78         4,999.98        4,952.44      M&A
                                                                                                                         4/9/2008      45.82             -0.24          46.06         4,999.98        4,954.16      M&A
                                                                                                                        9/15/2008       45.7             -0.24          45.94         4,999.98        4,954.28      M&A
                                                                                                                       10/30/2008      45.13             -0.24          45.37         4,999.98        4,954.85      M&A
                                                                                                                        12/3/2008      44.95             -0.24          45.19         4,999.98        4,955.03      M&A
                                                                                                                       12/19/2008      45.03             -0.24          45.27         4,999.98        4,954.95      M&A
                                                                                                                       12/29/2008      44.98             -0.24          45.22         4,999.98        4,955.00      M&A
                                                                                                                         1/8/2009      44.92             -0.24          45.16         4,999.98        4,955.06      M&A
                                                                                                                        1/20/2009      44.97             -0.24          45.21         4,999.98        4,955.01      M&A

      (D-19-16)6aad2              HC-2B               1,000     3,524,537   3,519,926     55-909048     5,000.55        7/27/2008     107.28             -0.35          107.63        5,000.20        4,892.92      M&A
                                                                                                                         8/8/2008     107.11             -0.35          107.46        5,000.20        4,893.09      M&A
                                                                                                                         9/4/2008     106.35             -0.35          106.70        5,000.20        4,893.85      M&A
                                                                                                                        9/15/2008     106.52             -0.35          106.87        5,000.20        4,893.68      M&A
                                                                                                                       10/30/2008     106.57             -0.35          106.92        5,000.20        4,893.63      M&A
                                                                                                                        12/3/2008     106.55             -0.35          106.90        5,000.20        4,893.65      M&A
                                                                                                                       12/19/2008     106.70             -0.35          107.05        5,000.20        4,893.50      M&A
                                                                                                                       12/29/2008     106.80             -0.35          107.15        5,000.20        4,893.40      M&A
                                                                                                                         1/8/2009     106.67             -0.35          107.02        5,000.20        4,893.53      M&A
                                                                                                                        1/20/2009     106.76             -0.35          107.11        5,000.20        4,893.44      M&A

      (D-19-16)6cca                RP-5               600        523,376    3,518,970     55-909058     5,229.68        7/24/2008     196.04             -0.27          196.31        5,229.41        5,033.37      M&A
                                                                                                                         9/4/2008     193.97             -0.27          194.24        5,229.41        5,035.44      M&A
                                                                                                                        9/15/2008     194.02             -0.27          194.29        5,229.41        5,035.39      M&A
                                                                                                                        9/18/2008     194.23             -0.27          194.50        5,229.41        5,035.18      M&A
                                                                                                                       10/30/2008     194.29             -0.27          194.56        5,229.41        5,035.12      M&A
                                                                                                                        12/3/2008     194.24             -0.27          194.51        5,229.41        5,035.17      M&A
                                                                                                                       12/19/2008     194.21             -0.27          194.48        5,229.41        5,035.20      M&A
                                                                                                                       12/29/2008     194.52             -0.27          194.79        5,229.41        5,034.89      M&A
                                                                                                                         1/8/2009     194.37             -0.27          194.64        5,229.41        5,035.04      M&A
                                                                                                                        1/20/2009     194.51             -0.27          194.78        5,229.41        5,034.90      M&A

      (D-19-16)10aaa                E-6                ---       529,422    3,518,737        ---        4,942.00       2/12/2008      247.5              1.00           246.50        4,943.00        4,695.50      M&A
                                                                                                                        3/18/2008     247.45             1.00           246.45        4,943.00        4,695.55       V
                                                                                                                        4/21/2008     247.57             1.00           246.57        4,943.00        4,695.43       V
                                                                                                                        5/19/2008     247.37             1.00           246.37        4,943.00        4,695.63       V
                                                                                                                        6/16/2008     247.45             1.00           246.45        4,943.00        4,695.55       V
                                                                                                                        7/23/2008     247.51             1.00           246.51        4,943.00        4,695.49       V
                                                                                                                        8/21/2008     247.30             1.00           246.30        4,943.00        4,695.70       V
                                                                                                                        9/19/2008     246.48             1.00           245.48        4,943.00        4,696.52       V
                                                                                                                       10/29/2008     247.58             1.00           246.58        4,943.00        4,695.42       V
                                                                                                                       11/18/2008     247.58             1.00           246.58        4,943.00        4,695.42       V
                                                                                                                       12/15/2008     247.83             1.00           246.83        4,943.00        4,695.17       V
                                                                                                                        1/13/2009     247.44             1.00           246.44        4,943.00        4,695.56      M&A




1232/07/Tbl10_SumWLmeasurementsRPA.xls/10Feb2009
                                                    TABLE 1. SUMMARY OF GROUNDWATER LEVEL MEASUREMENTS FOR WELLS, PIEZOMETERS, AND DRILL HOLES
                                                                            ROSEMONT PROJECT AREA, PIMA COUNTY, ARIZONA
                                                                                                      Page 22 of 24



                                                                 WELL COORDINATES
                                                                      (NAD83)

                                                                                                         LAND                                                                      MEASURING          WATER
                                                    REPORTED                              ADWR        SURFACE                       DEPTH TO        MEASURING        DEPTH TO          POINT          LEVEL
            WELL                  WELL             WELL DEPTH   UTM-EAST UTM-NORTH     REGISTRATION   ALTITUDE        DATE OF        WATER         POINT HEIGHT       WATER         ALTITUDE        ALTITUDE       DATA
          LOCATION             IDENTIFIER             (feet)     (meters)  (meters)      NUMBER       (feet, msl)   MEASUREMENT    (feet, bmp) a     (feet, als) b   (feet, bls)    (feet, msl) c   (feet, msl)   SOURCEd

      (D-19-16)14bdd             Windmill             260        530,088   3,516,422     55-634317     4,805.00       3/25/1982       99.0              0.00           99.00         4,805.00        4,706.00      GWSI
                                                                                                                      12/11/1987       97.1             0.00            97.10        4,805.00        4,707.90      GWSI
                                                                                                                       2/14/2005       96.5             0.00            96.50        4,805.00        4,708.50      GWSI
                                                                                                                       2/18/2008      96.56             0.30            96.26        4,805.30        4,708.74      M&A
                                                                                                                       3/17/2008     165.63             0.30           165.33        4,805.30        4,639.67       V
                                                                                                                       4/21/2008      99.75             1.50            98.25        4,806.50        4,706.75       V
                                                                                                                       5/16/2008     101.23             1.50            99.73        4,807.50        4,706.27       V
                                                                                                                       6/16/2008      99.80             1.50            98.30        4,807.50        4,707.70       V
                                                                                                                       7/21/2008      99.48             1.50            97.98        4,807.50        4,708.02       V
                                                                                                                       8/26/2008      99.80             1.50            98.30        4,807.50        4,707.70       V
                                                                                                                       9/29/2008      99.77             1.50            98.27        4,807.50        4,707.73       V
                                                                                                                      10/21/2008     103.11             1.50           101.61        4,807.50        4,704.39       V
                                                                                                                      11/11/2008     100.46             1.50            98.96        4,807.50        4,707.04       V
                                                                                                                      12/10/2008      99.10             1.50            97.60        4,807.50        4,708.40       V
                                                                                                                       1/13/2009        ---              ---              ---           ---             ---        M&A

      (D-19-16)15aba                ---               300        528,964   3,516,986        ---        4,900.00       1/30/1952      206.55             0.00           206.55        4,900.00        4,693.45      GWSI
                                                                                                                        2/6/1975      204.7             0.00           204.70        4,900.00        4,695.30      GWSI
                                                                                                                       1/14/1976      212.7             0.00           212.70        4,900.00        4,687.30      GWSI
                                                                                                                      11/22/1976      215.1             0.00           215.10        4,900.00        4,684.90      GWSI
                                                                                                                        1/2/1977      215.1             0.00           215.10        4,900.00        4,684.90      GWSI
                                                                                                                      12/13/1977      215.0             0.00           215.00        4,900.00        4,685.00      GWSI
                                                                                                                       12/4/1979      222.9             0.00           222.90        4,900.00        4,677.10      GWSI
                                                                                                                       12/9/1980      231.7             0.00           231.70        4,900.00        4,668.30      GWSI
                                                                                                                        1/5/1983      205.0             0.00           205.00        4,900.00        4,695.00      GWSI
                                                                                                                       12/8/1983      204.1             0.00           204.10        4,900.00        4,695.90      GWSI
                                                                                                                      12/11/1984      204.3             0.00           204.30        4,900.00        4,695.70      GWSI
                                                                                                                       1/30/1987      234.5             0.00           234.50        4,900.00        4,665.50      GWSI
                                                                                                                       2/16/1989      203.9             0.00           203.90        4,900.00        4,696.10      GWSI
                                                                                                                      11/30/1989      207.0             0.00           207.00        4,900.00        4,693.00      GWSI
                                                                                                                      12/11/1990      202.4             0.00           202.40        4,900.00        4,697.60      GWSI
                                                                                                                       1/21/1992      202.7             0.00           202.70        4,900.00        4,697.30      GWSI
                                                                                                                        1/4/1993      202.8             0.00           202.80        4,900.00        4,697.20      GWSI
                                                                                                                       12/9/1993      202.5             0.00           202.50        4,900.00        4,697.50      GWSI
                                                                                                                      11/16/1994      202.0             0.00           202.00        4,900.00        4,698.00      GWSI
                                                                                                                       12/5/1995      202.5             0.00           202.50        4,900.00        4,697.50      GWSI
                                                                                                                       11/8/1996      202.4             0.00           202.40        4,900.00        4,697.60      GWSI
                                                                                                                       11/4/1997      202.5             0.00           202.50        4,900.00        4,697.50      GWSI
                                                                                                                      10/26/1998      202.1             0.00           202.10        4,900.00        4,697.90      GWSI
                                                                                                                      11/16/1999      202.3             0.00           202.30        4,900.00        4,697.70      GWSI
                                                                                                                      11/28/2000      202.5             0.00           202.50        4,900.00        4,697.50      GWSI
                                                                                                                       11/6/2001      202.5             0.00           202.47        4,900.00        4,697.53      GWSI
                                                                                                                       11/5/2002      203.1             0.00           203.10        4,900.00        4,696.90      GWSI
                                                                                                                      10/28/2003      202.6             0.00           202.60        4,900.00        4,697.40      GWSI
                                                                                                                      10/25/2004      203.2             0.00           203.20        4,900.00        4,696.80      GWSI
                                                                                                                       2/14/2005      203.4             0.00           203.40        4,900.00        4,696.60      GWSI
                                                                                                                       1/10/2006      203.6             0.00           203.60        4,900.00        4,696.40      GWSI
                                                                                                                       1/16/2007      203.4             0.00           203.40        4,900.00        4,696.60      GWSI




1232/07/Tbl10_SumWLmeasurementsRPA.xls/10Feb2009
                                                    TABLE 1. SUMMARY OF GROUNDWATER LEVEL MEASUREMENTS FOR WELLS, PIEZOMETERS, AND DRILL HOLES
                                                                            ROSEMONT PROJECT AREA, PIMA COUNTY, ARIZONA
                                                                                                      Page 23 of 24



                                                                 WELL COORDINATES
                                                                      (NAD83)

                                                                                                         LAND                                                                      MEASURING          WATER
                                                    REPORTED                              ADWR        SURFACE                       DEPTH TO        MEASURING        DEPTH TO          POINT          LEVEL
            WELL                  WELL             WELL DEPTH   UTM-EAST UTM-NORTH     REGISTRATION   ALTITUDE        DATE OF        WATER         POINT HEIGHT       WATER         ALTITUDE        ALTITUDE       DATA
          LOCATION             IDENTIFIER             (feet)     (meters)  (meters)      NUMBER       (feet, msl)   MEASUREMENT    (feet, bmp) a     (feet, als) b   (feet, bls)    (feet, msl) c   (feet, msl)   SOURCEd



      (D-19-16)16cbb         Hilltop Windmill          ---       526,276   3,516,320        ---        5,049.50       3/20/2008      358.12             0.50           357.62        5,050.00        4,691.88       V
                                                                                                                       4/21/2008     359.18             0.50           358.68        5,050.00        4,690.82       V
                                                                                                                       5/19/2008     358.52             0.50           358.02        5,050.00        4,691.48       V
                                                                                                                       6/16/2008     358.52             0.50           358.02        5,050.00        4,691.48       V
                                                                                                                       7/21/2008     358.95             0.50           358.45        5,050.00        4,691.05       V
                                                                                                                       9/29/2008      358.1             0.50           357.60        5,050.00        4,691.90       V
                                                                                                                      10/31/2008     358.31             0.50           357.81        5,050.00        4,691.69       V
                                                                                                                      11/12/2008        ---             0.50             ---            ---             ---         V
                                                                                                                      12/16/2008     357.92             0.50           357.42        5,050.00        4,692.08       V
                                                                                                                       1/15/2009     360.11             0.50           359.61        5,050.00        4,689.89      M&A

      (D-19-16)16ddb                ---               260        527,460   3,515,841     55-603466     4,931.00       3/29/1982      229.3              0.00           229.30        4,931.00        4,701.70      GWSI
                                                                                                                      12/14/1987      227.7             0.00           227.70        4,931.00        4,703.30      GWSI
                                                                                                                       2/14/2005      226.5             0.00           226.50        4,931.00        4,704.50      GWSI
                                                                                                                       2/18/2008     228.46             1.20           227.26        4,932.20        4,703.74      M&A
                                                                                                                       3/17/2008     228.68             1.20           227.48        4,932.20        4,703.52       V
                                                                                                                       4/21/2008     228.75             1.20           227.55        4,932.20        4,703.45       V
                                                                                                                       5/16/2008     227.98             1.20           226.78        4,933.20        4,705.22       V
                                                                                                                       6/16/2008     228.71             1.20           227.51        4,933.20        4,704.49       V
                                                                                                                       7/21/2008     227.98             1.20           226.78        4,933.20        4,705.22       V
                                                                                                                       8/26/2008     228.85             1.20           227.65        4,933.20        4,704.35       V
                                                                                                                       9/29/2008     228.65             1.20           227.45        4,933.20        4,704.55       V
                                                                                                                      10/31/2008     228.85             1.20           227.65        4,933.20        4,704.35       V
                                                                                                                      11/12/2008     228.91             1.20           227.71        4,933.20        4,704.29       V
                                                                                                                      12/16/2008     228.88             1.20           227.68        4,933.20        4,704.32       V
                                                                                                                       1/15/2009     229.05             1.20           227.85        4,933.20        4,704.15      M&A

      (D-19-16)17ddd                ---               301        526,183   3,515,603     55-603564     5,004.70       2/18/2008      284.62             0.30           284.32        5,005.00        4,720.38      M&A
                                                                                                                       3/17/2008     294.66             0.30           294.36        5,005.00        4,710.34       V
                                                                                                                       4/25/2008     293.74             0.30           293.44        5,005.00        4,711.26       V
                                                                                                                       5/16/2008     293.82             0.30           293.52        5,005.00        4,711.18       V
                                                                                                                       6/16/2008     294.75             0.30           294.45        5,005.00        4,710.25       V
                                                                                                                       7/24/2008     294.58             0.30           294.28        5,005.00        4,710.42       V
                                                                                                                       8/26/2008     294.68             0.30           294.38        5,005.00        4,710.32       V
                                                                                                                       9/29/2008     296.25             0.30           295.95        5,005.00        4,708.75       V
                                                                                                                      10/31/2008     294.84             0.30           294.54        5,005.00        4,710.16       V
                                                                                                                      11/12/2008     295.59             0.30           295.29        5,005.00        4,709.41       V
                                                                                                                      12/16/2008     294.82             0.30           294.52        5,005.00        4,710.18       V
                                                                                                                       1/15/2009     295.03             0.30           294.73        5,005.00        4,709.97      M&A

      (D-19-16)18ddb                ---               1,180      524,294   3,515,885     55-544411     5,180.00       2/18/2008      456.4              0.00           456.40        5,180.00        4,723.60      M&A
                                                                                                                      3/17/2008      455.27             0.00           455.27        5,180.00        4,724.73       V
                                                                                                                      4/25/2008      455.32             0.00           455.32        5,180.00        4,724.68       V
                                                                                                                      5/19/2008      455.12             0.00           455.12        5,180.00        4,724.88       V
                                                                                                                      6/16/2008      455.28             0.00           455.28        5,180.00        4,724.72       V
                                                                                                                      7/21/2008      454.68             0.00           454.68        5,180.00        4,725.32       V
                                                                                                                      8/28/2008      454.74             0.00           454.74        5,180.00        4,725.26       V




1232/07/Tbl10_SumWLmeasurementsRPA.xls/10Feb2009
                                                    TABLE 1. SUMMARY OF GROUNDWATER LEVEL MEASUREMENTS FOR WELLS, PIEZOMETERS, AND DRILL HOLES
                                                                            ROSEMONT PROJECT AREA, PIMA COUNTY, ARIZONA
                                                                                                                     Page 24 of 24



                                                                      WELL COORDINATES
                                                                           (NAD83)

                                                                                                                       LAND                                                                             MEASURING          WATER
                                                    REPORTED                                       ADWR             SURFACE                              DEPTH TO        MEASURING        DEPTH TO          POINT          LEVEL
            WELL                  WELL             WELL DEPTH       UTM-EAST UTM-NORTH          REGISTRATION        ALTITUDE         DATE OF              WATER         POINT HEIGHT       WATER         ALTITUDE        ALTITUDE       DATA
          LOCATION             IDENTIFIER             (feet)         (meters)  (meters)           NUMBER            (feet, msl)    MEASUREMENT          (feet, bmp) a     (feet, als) b   (feet, bls)    (feet, msl) c   (feet, msl)   SOURCEd

      (D-19-16)18ddb             --- (cont.)          1,180           524,294      3,515,885       55-544411          5,180.00        9/29/2008            454.25            0.00           454.25        5,180.00        4,725.75       V
                                                                                                                                      10/31/2008           454.09            0.00           454.09        5,180.00        4,725.91       V
                                                                                                                                      11/12/2008           453.55            0.00           453.55        5,180.00        4,726.45       V
                                                                                                                                      12/16/2008           453.68            0.00           453.68        5,180.00        4,726.32       V
                                                                                                                                       1/15/2009           456.76            0.00           456.76        5,180.00        4,723.24      M&A

      (D-19-16)21bab                 ---              326             526,601      3,515,478       55-603465         4,985.00         3/30/1982            281.40            0.50           280.90        4,985.50        4,704.10      GWSI
                                                                                                                                       7/24/2008           280.85            0.50           280.35        4,985.50        4,704.65       V
                                                                                                                                       8/26/2008            280.7            0.50           280.20        4,985.50        4,704.80       V
                                                                                                                                       9/29/2008            280.7            0.50           280.20        4,985.50        4,704.80       V
                                                                                                                                      10/31/2008           283.86            0.50           283.36        4,985.50        4,701.64       V
                                                                                                                                      11/12/2008           281.04            0.50           280.54        4,985.50        4,704.46       V
                                                                                                                                      12/16/2008           280.84            0.50           280.34        4,985.50        4,704.66       V
                                                                                                                                       1/15/2009           281.13            0.50           280.63        4,985.50        4,704.37      M&A


      a                                                         d
        feet,bmp = feet below measuring point                       Data Source: H = Harshbarger & Hargis (1976)
      b
        feet, als = feet above land surface                                      HM = Hargis & Montgomery (1981, 1982)
      c
        feet, msl = feet above mean sea level                                    M&A = Errol L. Montgomery & Associates
      --- Not available                                                          GWSI = Groundwater Site Inventory Database, Arizona Dept. of Water Resources
                                                                                 V = Verdad Group LLC




1232/07/Tbl10_SumWLmeasurementsRPA.xls/10Feb2009
                APPENDIX G

           WELL INVENTORY
WITHIN A TWO (2) MILE RADIUS
                                                                         INVENTORY OF WELL RECORDS AND CONSTRUCTION INFORMATION WITHIN TWO (2) MILES

                                                                                        ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                                CASING                                  NON-PUMPING WATER LEVEL
                                ADWR                                                                                                                    ALTITUDE
                                 WELL                                                                  DEPTH                             PERFORATED     OF LAND                                              PUMPING
   CADASTRAL        WELL       REGISTRY                                                    DATE       DRILLED      DIAMETER    DEPTH      INTERVAL      SURFACE       DEPTH         DATE        ALTITUDE      RATE     WATER
    LOCATION      REGISTRY     NUMBER                           OWNER                   COMPLETED     (ft, bls)a    (inches)    (feet)      (ft, bls)   (ft, amsl)b   (ft, bls)   MEASURED      (ft, amsl)    (gpm)c   USEd        LOGSe                REMARKS
(D-16-15) 22bbb      35          33978  METROPOLITAN UTILITY                             12/10/1975      892           ---        ---           ---          ---        383       12/10/1975         ---        ---     OE           D                     ---
(D-16-15) 22bbb     GWSI         UW-1    CITY OF TUCSON                                  12/10/1975     892           ---        ---          ---         2990         382.9      12/10/1975     2607.1         ---      U      C, E, G, T, V               ---
(D-16-15) 22bcc       35         UW-2                              ---                      ---          ---          ---        ---          ---           ---         381           ---          ---          ---      S           ---                    ---
(D-16-15) 22cbb    55,GWSI      604336   PIMA COUNTY PARKS                                  ---         420           8         420           ---         2992         390.1       2/1/1979       2602          ---    MUN           ---                    ---
(D-16-15) 23bbb       35        33969    METROPOLITAN UTILITY                            9 /9 /1975     1055          ---        ---          ---           ---         412        9 /9 /1975      ---          ---     OE            D                     ---
(D-16-15) 23bbb     GWSI         UW-3    CITY OF TUCSON                                   9/9/1975      1055          ---        ---          ---         3035           ---          ---          ---          ---    MUN     C, E, G, J, V, Z             ---
(D-16-15) 23ccc    55,GWSI      502181   CITY OF TUCSON                                  7/15/1982      1003          16       0-1000      480-980        3050         451.4       2/9/2006      2598.6        636     MUN            D                     ---
                                                                                                                      32        0-40         ---
(D-16-15) 23ddd    55,GWSI      202883   CITY OF TUCSON/TUCSON WATER                     3/25/2005      980                                               3110         500.7       4/12/2005     2609.3         ---    MUN            D                     ---
                                                                                                                      20       0-980       540-960
(D-16-15) 26ddd       35        40031    METROPOLITAN UTILITIES MANAGEMENT AGENCY        2 /19/1976     1117          ---        ---         ---            ---         440       2 /19/1976       ---          ---     OE            D                     ---
(D-16-15) 26ddd     GWSI         UW-4    CITY OF TUCSON                                  2/19/1976      1117         7.88       0-24          ---         3145         440.2       2/19/1976     2704.8         ---      U      C, E, J, T, V               ---
(D-16-15) 27ccc     GWSI        616071   ARIZONA STATE LAND DEPT                            ---         830           ---        ---          ---         3013         399.8       1/16/1995     2613.2         ---    MUN         D, G, J                  ---
(D-16-15) 27ccc       35         UW-5    CORONA DE TUCSON INC                            2 /1 /1963     840           12        0-840      410-820          ---         383        3 /9 /1963      ---          ---       I           D                     ---
(D-16-15) 28ddd       35        33977    METROPOLITAN UTILITY                            1 /1 /1976     1015          ---        ---          ---           ---          ---          ---          ---          ---      ---          D                     ---
(D-16-15) 28ddd     GWSI         UW-6    CITY OF TUCSON                                  3/19/1976      1015          ---        ---          ---         3006           ---          ---          ---          ---      U     C, E, G, J, T, V             ---
(D-16-15) 28ddd       35         UW-7                              ---                      ---         830           ---        ---          ---           ---          ---          ---          ---          ---      ---        D, J                    ---
(D-16-15) 33bbb     GWSI         UW-8    CORONA DE TUCSON                                 1/1/1963      825           ---        ---          ---         2956           ---          ---          ---          ---      ---         ---                    ---
(D-16-15) 34aaa       55        616072   AZ STATE LAND DEPT,                                ---         733           12         ---          ---           ---         457           ---          ---         360     MUN           ---          DUPLICATE 619865
(D-16-15) 34aaa    55,GWSI      619865   CITY OF TUCSON                                   1/1/1963      703           12        0-702       242-?         3074         477.2       2/8/2006      2596.8        425     MUN          D, J          DUP-616072
(D-16-15) 34aaa       35         UW-8    SPRING VALLEY WATER CO                          1 /31/1963     704           12         ---       460-702          ---         258       1 /31/1963       ---          ---      D          J, D                    ---
(D-16-15) 36cad   55,GWSI,35    616073   ARIZONA STATE LAND DEPT                          1/1/1927      620           6          ---          ---         3205        576.15       2/1/1978       2629          3       D, S          D                     ---
(D-16-16) 21acc       55        520871   INGRAM, J.D.,                                      ---          ---          ---        ---          ---           ---          ---          ---          ---          ---      D           ---                    ---
(D-16-16) 21bdc       35        UW-10                              ---                      ---          ---          ---        ---          ---           ---         591           ---          ---          ---      S           ---                    ---
(D-16-16) 21bdc     GWSI         UW-9    BUTTIS, BO                                      11/1/1946      629           6         0-623         ---         3262          572        12/8/1987      2690          ---      U            D                     ---
(D-16-16) 21cab       55        562697   STEWART TITLE &                                    ---          ---          ---        ---          ---           ---          ---          ---          ---          ---      D           ---                    ---
(D-16-16) 22ddd       55        530779   SW GAS CORP,                                    3/18/1991      228           ---        ---          ---           ---          ---          ---          ---          ---    NONE           D           CAPPED
(D-16-16) 27aac       35        UW-11                              ---                   1 /1 /1959     868           12        0-225         ---           ---         250        1 /1 /1959      ---          ---    MUN          D, G                    ---
(D-16-16) 27ab        55        616074   AZ STATE LAND DEPT,                              1/1/1962      840           10         840         ---            ---         440        1/1/1962        ---          ---      ---         ---                    ---
                                                                                                                      12        0-217        ---
(D-16-16) 27abd   55,GWSI,35    625704   VAIL WATER COMPANY                              7/29/1959      868                                               3360         325.9       1/19/2005     3034.1        70        D          D, G          27aba in 55 and 35
                                                                                                                       8       162-825     225-825
(D-16-16) 27cab       55        541391   BOSTICK, TERRY,                                    ---          ---          ---         ---        ---            ---          ---          ---          ---          ---      D           ---                    ---
(D-16-16) 27ccb       55        573950   SALMON, RUSSELL                                 5/23/1999      380           1          20           ---           ---          ---          ---          ---          ---      D            D                     ---
(D-16-16) 34bbb       55        209095   PARDO, LAWRENCE                                    ---          ---          ---        ---          ---           ---          ---          ---          ---          ---      D           ---                    ---
(D-16-16) 34ccb       55        550089   GASHO, JOHN JR,                                    ---          ---          ---        ---          ---           ---          ---          ---          ---          ---      D           ---                    ---
(D-16-16) 34dad    GWSI,35      72923    DAVIS, J E                                      9 /3 /1979     500           6          ---          ---         3475         250.8      12/23/1981     3224.2         ---      D            D                     ---
(D-16-16) 34dbc       55        558235   LIX, JOE,                                        8/4/1996      800           8         800           ---           ---         245        8/4/1996        ---          ---      D            D                     ---
(D-16-16) 34dcb       55        598594   MENDIAZ, RUBEN A                                   ---          ---          ---        ---          ---           ---          ---          ---          ---          ---      D           ---                    ---
(D-16-16) 34ddb       55        527528   PLANTE, GREGORY, J                                 ---          ---          ---        ---          ---           ---          ---          ---          ---          ---      D           ---                    ---
(D-17-15) 02aaa    GWSI,35      UW-12    TUCSON GAS & ELECT                               9/1/1969      307           ---        ---          ---         3180           ---          ---          ---          ---     OE            G                     ---
(D-17-15) 02dcd    GWSI,35      UW-13    SPRING VALLEY WATER                             9/20/1962      849          8.62       0-849      550-849        3194         555.1       1/18/2007     2638.9         ---      D          D, G                    ---
(D-17-15) 10abc       55        217381   PIMA COUNTY WASTEWATER MANAGEMENT                  ---          ---          ---        ---          ---           ---          ---          ---          ---          ---    MON           ---                    ---
(D-17-15) 10abc       55        217382   PIMA COUNTY WASTEWATER MANAGEMENT                  ---          ---          ---        ---          ---           ---          ---          ---          ---          ---    MON           ---                    ---
(D-17-15) 10acc       55        212409   PIMA COUNTY WASTEWATER MANAGEMENT DEPARTMENT    9/28/2006      650           5         0-644         ---           ---         490        9/28/2006       ---         34        D            D                     ---
(D-17-15) 10bad       55        520124   PIMA COUNTY WASTEWATER MANAGEMENT DEPARTMENT    6/27/1988      650           20        0-550         ---           ---         473        6/27/1988       ---         27      MON            D                     ---
(D-17-15) 10bad       55        520137   PIMA COUNTY WASTEWATER,                          7/6/1988      569           20        0-569         ---           ---         473        7/6/1988        ---         21      MON            D                     ---
(D-17-15) 10dbb       55        503557   PHILLIPS PETROLEUM,                                ---          ---          ---        ---          ---           ---          ---          ---          ---          ---    MON            D                     ---




                                                                                                                   Page 1 of 22
                                                                          INVENTORY OF WELL RECORDS AND CONSTRUCTION INFORMATION WITHIN TWO (2) MILES

                                                                                        ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                               CASING                                  NON-PUMPING WATER LEVEL
                                ADWR                                                                                                                   ALTITUDE
                                 WELL                                                                 DEPTH                             PERFORATED     OF LAND                                             PUMPING
   CADASTRAL        WELL       REGISTRY                                                   DATE       DRILLED      DIAMETER    DEPTH      INTERVAL      SURFACE       DEPTH          DATE      ALTITUDE      RATE     WATER
    LOCATION      REGISTRY     NUMBER                            OWNER                 COMPLETED     (ft, bls)a    (inches)    (feet)      (ft, bls)   (ft, amsl)b   (ft, bls)   MEASURED     (ft, amsl)    (gpm)c   USEd      LOGSe         REMARKS
(D-17-15) 13aba      55         550929  LANGFORD, FRANK,                                9/22/1995       450            8       0-450           ---          ---        355        9/22/1995        ---        ---     D          D              ---
(D-17-15) 13aca       55        550813   TIBBS, GINGER,                                  9/28/1995     464           8        0-464          ---           ---         330        9/28/1995      ---          ---      D        D                 ---
(D-17-15) 13baa       55        550812   CARROLL, ARTHUR,                                9/21/1995     462           8        0-462          ---           ---         335        9/21/1995      ---          ---      D        D                 ---
(D-17-15) 13bcd       35        UW-14                              ---                   1/1/1956      947           6          ---          ---           ---         701        1/1/1956       ---          ---      D        D                 ---
(D-17-15) 13bda       55        217253   GB GROUP LLC                                       ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      ---      ---               ---
(D-17-15) 13bda       55        550815   COOPER, CHRIS,                                  9/28/1995     463            8       0-463          ---           ---         360        9/28/1995      ---          ---      D        D                 ---
                                                                                                                      8       0-947
(D-17-15) 13bdc     GWSI        801279   THE ABRAMS GROUP                                9/1/1956      947                                   ---         3400        614.44       5/16/2007    2785.56        ---      U        D                 ---
                                                                                                                      6       772-?
(D-17-15) 13bdc       55        801279   ABRAMS, STANLEY                                 9/1/1956      947           ---        ---          ---           ---         641        9/1/1956       ---          ---       I       ---               ---
(D-17-15) 13dba       55        550814   CARROLL, GEORGE, D                              9/29/1995     464           8        0-464          ---           ---         335        9/29/1995      ---          ---      D        D                 ---
(D-17-15) 23aad       55        577400   JOHN E JACOBSEN                                 1/13/2000     720           5        0-720          ---           ---         598        1/13/2000      ---         10        D        D                 ---
(D-17-15) 23abb       55        561632   HERMENS, JOSEPHINE, D                           4/5/1997      730           8        0-730          ---           ---         560        4/5/1997       ---          ---      D        D                 ---
(D-17-15) 23abd       55        208371   GERARD & SONS CUSTOM HOMES INC                     ---        850           5        0-840          ---           ---          ---          ---         ---          ---     D, S      D                 ---
(D-17-15) 23adb       55        206094   GERARD & SONS CUSTOM HOMES INC                  3/5/2005      975           8        0-975          ---           ---         578        3/5/2005       ---          6        D        D                 ---
(D-17-15) 23add       55        547650   WIDDOWS, ROGER,                                 2/8/1995      800           8        0-200          ---           ---          ---          ---         ---          ---      D        D                 ---
(D-17-15) 23add       55        548473   WIDDOWS, ROGER,                                 5/6/1995      800           8        0-800          ---           ---         570        5/6/1995       ---          ---      D        D                 ---
(D-17-15) 23caa       55        574087   LESLIE & PENNY FRANKLIN                         5/27/1999     800           5        0-800          ---           ---         425        5/27/1999      ---          ---      D        D                 ---
(D-17-15) 23daa       55        203396   ALFRED BREAW                                    3/28/2005     760           5        0-760          ---           ---         579        3/28/2005      ---          ---      D        D                 ---
(D-17-15) 23daa       55        203428   BILL ABEYTA                                     1/13/2005     720           5        0-720          ---           ---         590        1/13/2005      ---          ---      D        D                 ---
(D-17-15) 23dbb       55        215782   GERARD & SONS CUSTOM HOMES INC                  6/7/2007      960           5        0-930          ---           ---         750        6/7/2007       ---          ---      D        D                 ---
(D-17-15) 26ada       55        555730   SCHULTY, JOE,                                      ---         ---          ---        ---          ---           ---          ---          ---         ---          ---     D, S      ---               ---
(D-17-15) 26bac       55        555892   SCHULTY, JOE,                                      ---         ---          ---        ---          ---           ---          ---          ---         ---          ---     D, S      ---               ---
(D-17-15) 26bb        55        87672    ROBINSON, R                                        ---        500           ---        ---          ---           ---          ---          ---         ---          ---      D        ---               ---
(D-17-15) 26bbc       55        562010   RACKLIFFE, STEVE,                              10/10/1997     790           6        0-790          ---           ---         600       10/10/1997      ---          ---      D        D                 ---
(D-17-15) 26bca       55        513668   MOORE, MICKEY,                                  3/14/1986     500           ---        ---          ---           ---          ---          ---         ---          ---      D        D      CAPPED
(D-17-15) 26bca       55        514434   GABLER, LEROY & E.,                             5/27/1986     850           5        0-850          ---           ---         710        5/27/1986      ---         10        D        D                 ---
(D-17-15) 26bca     GWSI        UW-15                              ---                      ---         ---          ---        ---          ---         3500         684.6       12/2/1987    2815.4         ---      D        ---               ---
(D-17-15) 26bcc       55        206074   GORDON & KATHLEEN LEETZOW                          ---         ---          ---        ---          ---           ---          ---          ---         ---          ---     D, S      ---               ---
(D-17-15) 26bcc    55,GWSI      522092   GORDON & KATHLEEN LEETZOW                       9/30/1988     850           8        0-850          ---         3495          690        9/30/1988      ---          5        D        D                 ---
(D-17-15) 26bdb       55        559236   KERRY, ROBERT, A                                   ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D        ---               ---
(D-17-15) 35bab       55        564550   CATHLEEN & STEPHEN MCGRATH                      9/21/1997     920           5        0-920          ---           ---         560        9/21/1997      ---          5        S        D                 ---
(D-17-15) 35bac       55        564551   SUSAN ARMITAGE                                     ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D        ---               ---
(D-17-15) 35bda       55        212184   SHELDON D CLARK                                    ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D        ---               ---
(D-17-15) 35bda       55        564297   MICHAEL FRATE                                      ---        950           5        0-950          ---           ---         145           ---         ---          ---      D        D                 ---
(D-17-15) 35bdc       55        564296   GOLOS, DON,                                        ---         ---          8        0-1055         ---           ---         530           ---         ---          ---      S        ---               ---
(D-17-15) 36bda     GWSI        UW-16                              ---                      ---         ---          6          ---          ---         3890         261.3       1/18/2005    3628.7         ---      U        ---               ---
(D-17-15) 36cb        55        641673   CORONADO NATIONAL FOREST,                          ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      S        ---               ---
(D-17-16) 03bac    55,GWSI      502918   LE GAULT, J A                                   7/21/1982     700           6        0-700          ---         3483          550        7/21/1982      ---          5        D        D      03bdc in 55
(D-17-16) 03bad    55,GWSI      635041   SHELTON, P K                                   10/12/1979     450           6         440           ---         3487           ---          ---         ---          ---      D        ---    03 in 55
(D-17-16) 03bba       55        541421   ISLAS, BENJAMIN, M                             11/24/1993     1000          8          22           ---           ---         490       11/24/1993      ---          7      D, S, I    D                 ---
(D-17-16) 03dab       55        526684   SUN MOBILE, LLC,                               12/27/1989     410           6         410           ---           ---         180       12/27/1989      ---         12        D        D      ABANDONED
(D-17-16) 03dab       55        556088   SUN MOBILE,                                     4/19/1996     1150          8          ---         ---            ---          ---          ---         ---          ---      D        D      ABANDONED
                                                                                                                     6         0-18         ---
(D-17-16) 03dbb   55,GWSI,35    634449   PETZOLD, T J                                   10/16/1979     700                                               3515          643       12/23/1981     2872          ---      D        D                 ---
                                                                                                                     4        0-700       680-700
(D-17-16) 03dcb       55        515325   GARRONE, LOUIS JR.,                             10/6/1986     860           8          20          ---            ---         590        10/6/1986      ---          5        D        D                 ---
(D-17-16) 03dcc       55        546684   ANDRESANO, RALPH,                               3/3/1995      410           8         410           ---           ---         360        3/3/1995       ---          6        D        D                 ---




                                                                                                                  Page 2 of 22
                                                                        INVENTORY OF WELL RECORDS AND CONSTRUCTION INFORMATION WITHIN TWO (2) MILES

                                                                                      ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                             CASING                                  NON-PUMPING WATER LEVEL
                               ADWR                                                                                                                  ALTITUDE
                                WELL                                                                DEPTH                             PERFORATED     OF LAND                                             PUMPING
   CADASTRAL         WELL     REGISTRY                                                  DATE       DRILLED      DIAMETER    DEPTH      INTERVAL      SURFACE       DEPTH         DATE       ALTITUDE      RATE     WATER
    LOCATION       REGISTRY   NUMBER                            OWNER                COMPLETED     (ft, bls)a    (inches)    (feet)      (ft, bls)   (ft, amsl)b   (ft, bls)   MEASURED     (ft, amsl)    (gpm)c   USEd    LOGSe          REMARKS
                                                                                                                     8        0-14
(D-17-16) 03dda       35        69703  THOMPSON, W M                                  11/13/1978      400                                390-400          ---        325       11/13/1978        ---        ---     D        D               ---
                                                                                                                     6        0-14
(D-17-16) 04aca       55       534715   AVERY, OTTO, M                                    ---         ---           ---        ---         ---           ---          ---          ---         ---          ---      D      ---                  ---
(D-17-16) 04caa       55       578186   CARMICHAEL, CAROL                                 ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---                  ---
(D-17-16) 04cab       55       577942   IRMISCHER, DIETER AND KARLA                    2/18/2000     720           5         720           ---           ---         495        2/18/2000      ---          5        D      D                    ---
(D-17-16) 09aca       55       548569   SAUL, KENNETH, J                               4/6/1995      350           8        0-350          ---           ---         265        4/6/1995       ---          ---      D      D                    ---
(D-17-16) 09acb       55       548550   JOHN S AND DARLENE C LEGENDRE                  4/4/1995      700           8          ---          ---           ---         285        4/4/1995       ---          ---      D      D                    ---
(D-17-16) 09acb       55       553918   DAVID HAWKINS                                     ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---                  ---
(D-17-16) 09acb       55       599979   CRYSTIE STEVENS                                   ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---                  ---
(D-17-16) 09bcd       55       204870   FAITH BRENNAN                                  9/30/2004     350           ---      0-350          ---           ---         225        9/30/2004      ---         10        D      D                    ---
(D-17-16) 09bcd       55       568184   JOHN LAZZERONI                                    ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---                  ---
(D-17-16) 09cab       55       541617   BELTRAN, JORGE, F                                 ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---                  ---
(D-17-16) 09cba       55       586088   JAMES CHAMBERS                                    ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---                  ---
(D-17-16) 09cda       55       523167   WILLIAM F YOUNG                                9/29/1989     587           6         0-45          ---           ---          ---          ---         ---         12        D      D                    ---
(D-17-16) 09cdc       55       553481   THOMAS W REILLY                                2/10/1996     1100          8         0-20          ---           ---          ---          ---         ---          5        D      D                    ---
(D-17-16) 09cdc       55       598888   JILL M CARRARA                                 5/18/2004     705           5        0-705          ---           ---         360        5/18/2004      ---          ---      D      D                 ---
                                                                                                                                                                                                                                   09ddd in 55
(D-17-16) 09cdc1   55,GWSI     532168   MUELLER, JON,                                  6/26/1991     500          6.25       0-50          ---         3607         259.1       1/28/2005    3347.9         ---      D      D
                                                                                                                                                                                                                                   Pumping Watr Level
(D-17-16) 09cdc2    GWSI       UW-17                             ---                      ---         ---          ---       ?-20         ---          3601          147        1/28/2005     3454          ---      D      ---               ---
                                                                                                                                        220-240
(D-17-16) 10aaa    GWS,35I     629283   SANTA RITA WATER CO                            2/28/1979     825           6        0-480                      3560         23.1        1/16/1995    3536.9         ---    OE, U    D                    ---
                                                                                                                                        280-300
(D-17-16) 10abb       55       620415   VALLEY WATER ASSOC,                            9/28/1979     600           6        0-600         ---            ---         225        9/28/1979      ---         11        D      ---                  ---
(D-17-16) 10abb       55       629283   SANTA RITA WATER # 1,                          2/23/1979     825           6        0-480          ---           ---         120        2/23/1979      ---         10        D      ---                  ---
(D-17-16) 10abb       55       629284   SANTA RITA WATER #2,                           2/28/1979     525           6        0-480          ---           ---         120        2/28/1979      ---         10        D      ---                  ---
(D-17-16) 10abb       35       73755    Virgil SMITH                                   5/2/1979      500           8         0-20          ---           ---         225        5/2/1979       ---          ---      D      D                    ---
(D-17-16) 10bdb       55       85682    SWEEPE, R O                                       ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---                  ---
(D-17-16) 12ddb    GWSI,35     UW-18                             ---                      ---        700           ---      ?-480          ---         3725           ---          ---         ---          ---     IND     G                    ---
(D-17-16) 13acd    GWSI,35     UW-19                             ---                   3/1/1960      196           ---      ?-775          ---         3722           71        3/11/1960     3651          ---    OE, U    ---                  ---
(D-17-16) 14bbd    55,GWSI     616162   AZ STATE LAND DEPT                                ---        150           8        0-150          ---         3704           ---          ---         ---          5       S, U    ---    Well is dry
(D-17-16) 14bca       35       UW-20                             ---                      ---         ---          8          ---          ---           ---          53           ---         ---          ---     OE      ---           Abandoned
(D-17-16) 15aaa       55       616163   AZ STATE LAND DEPT                                ---        420           8        0-420          ---           ---          ---          ---         ---          5        S      ---                  ---
(D-17-16) 16cba     GWSI       UW-21                             ---                      ---         ---          3          ---          ---         3685         104.5       4/1/1982     3580.5         ---      U      ---                  ---
(D-17-16) 16cbb     GWSI       UW-22                             ---                      ---         ---           3         ---          ---         3682           ---          ---         ---          ---      U      ---                  ---
                                                                                                                    8       0-366        60-230
(D-17-16) 16cdc     GWSI       533756   GA. MARBLE OF ARIZONA                          12/8/1991     366                                               3730         41.7        1/27/2005    3688.3         ---      U      D                    ---
                                                                                                                    6       230-?       230-366
(D-17-16) 17bda       55       586229   ALLEN H TAYLOR                                    ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---                  ---
(D-17-16) 21a         55       200940   WRH PROPERTIES LLC                                ---        107           ---        ---          ---           ---          92           ---         ---          ---    NONE     D                    ---
(D-17-16) 21aaa       55       502233   DOME WELL CORPORATION                          5/7/1982      560           6        0-560          ---           ---         460        5/7/1982       ---          ---      D      D                    ---
(D-17-16) 21aaa       55       502234   SPRIETSMA, J                                      ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---                  ---
(D-17-16) 21aaa       55       556836   DOME WELL CORPORATION                         10/25/1996     640           8        0-640          ---           ---          13       10/25/1996      ---         10        D      D                    ---
(D-17-16) 21aad       55       502235   SPRIETSMA, J                                      ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---                  ---
(D-17-16) 21abb       55       200879   WRH PROPERTIES LLC                            12/22/2003     600           5        0-600          ---           ---         387       12/22/2003      ---          ---      D      D                    ---
(D-17-16) 21acd       55       501596   COKELY, J                                         ---        340           4        0-340          ---           ---         240           ---         ---          ---      D      D                    ---
(D-17-16) 21ada       55       213192   BRYAN RAMSEY                                      ---        600           8        0-600          ---           ---         170           ---         ---          ---      D      D                    ---
(D-17-16) 21ada       55       517687   ROOT, THOMAS, M                               10/23/1987     500           8        0-500          ---           ---          60       10/23/1987      ---         18        D      D                    ---
(D-17-16) 21ada       55       520602   GERHARD, GENE & GAIL,                             ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---                  ---
(D-17-16) 21ada       55       520856   GIBBLE, DAN,                                      ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---                  ---
(D-17-16) 21ada       55       524815   GIPPLE, DANIEL,                                   ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---                  ---




                                                                                                                Page 3 of 22
                                                                       INVENTORY OF WELL RECORDS AND CONSTRUCTION INFORMATION WITHIN TWO (2) MILES

                                                                                     ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                            CASING                                  NON-PUMPING WATER LEVEL
                              ADWR                                                                                                                  ALTITUDE
                               WELL                                                                DEPTH                             PERFORATED     OF LAND                                             PUMPING
   CADASTRAL        WELL     REGISTRY                                                  DATE       DRILLED      DIAMETER    DEPTH      INTERVAL      SURFACE       DEPTH         DATE       ALTITUDE      RATE     WATER
    LOCATION      REGISTRY   NUMBER                            OWNER                COMPLETED     (ft, bls)a    (inches)    (feet)      (ft, bls)   (ft, amsl)b   (ft, bls)   MEASURED     (ft, amsl)    (gpm)c   USEd    LOGSe          REMARKS
(D-17-16) 21ada      55       544197  GARY L RIGGS                                    7/7/1994       380            8       0-380           ---          ---        185        7/7/1994         ---        15      D        D               ---
(D-17-16) 21adc      55       599463   NEIL MICHAEL THRALL                            4/17/2004     300           7        0-300          ---           ---         160       4/17/2004       ---         12       D, S    D                    ---
(D-17-16) 21add      55       213538   BOBBY G PETERS                                 8/30/2007     500           7         0-20          ---           ---         250       8/30/2007       ---          ---      D      D                    ---
(D-17-16) 21add      55       216912   BOBBY G PETERS                                    ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---                  ---
(D-17-16) 21add      55       517253   PERKINS, WALT,                                 5/15/1986     450           5        0-440          ---           ---         220       5/15/1986       ---          4        D      D                    ---
(D-17-16) 21bab      55       533756   WRH PROPERTIES LLC                             12/8/1991     366           8        0-366          ---           ---         43        12/8/1991       ---         25       IND     D                    ---
(D-17-16) 21bba      55       555148   WRH PROPERTIES LLC                             3/17/1996      ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE     D      ABANDONED
(D-17-16) 21bcd    GWSI       UW-23                             ---                      ---         ---          3          ---          ---         3835           ---          ---         ---          ---      U      ---                  ---
(D-17-16) 21bda      55       598334   BILLY L FRY                                       ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---                  ---
(D-17-16) 21daa      55       514605   BAVENDER, JOHN, A                              6/24/1986     480           8        0-480          ---           ---         320       6/24/1986       ---         10        D      D                    ---
(D-17-16) 21dac      55       514739   ZAKERWSKI, GRANGER,                            7/19/1986     440           6        0-440          ---           ---         286       7/19/1986       ---          ---      D      D                    ---
(D-17-16) 21dac      55       515919   FELZIEN, LARRY, L                              1/21/1987     450           6        0-450          ---           ---         100       1/21/1987       ---          ---      D      D                    ---
(D-17-16) 21dbd      55       596605   MICHAEL S CARSON                                  ---        410           5        0-410          ---           ---          87           ---         ---          ---      D      D                    ---
(D-17-16) 21dda      55       502414   LINCARLYN WATER ASS.,                          7/6/1982      507           6        0-507          ---           ---         200        7/6/1982       ---         12        D      D      CAPPED
(D-17-16) 21ddc      55       502421   CHARLENE WALKER                                4/18/1982     430           5        0-430          ---           ---         60        4/18/1982       ---          ---      D      D                    ---
(D-17-16) 21ddd      55       204995   THOMAS WILLIAM HAMPSON                            ---        265           5        0-215          ---           ---          50           ---         ---         18        D      D                    ---
(D-17-16) 21ddd      55       518914   CHARLENE WALKER                               10/30/1987     500           8        0-500          ---           ---         85        10/30/1987      ---         10        D      D                    ---
(D-17-16) 21ddd      55       519185   SINGLER, BOB,                                     ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---                  ---
(D-17-16) 21ddd      55       521901   M & M DAVID OVERMYER,                          8/20/1988     335           6        0-335          ---           ---          80       8/20/1988       ---         15        D      D                    ---
(D-17-16) 21ddd      55       532422   SINGLER, ROBERT, P                             8/6/1991      743           4        0-745          ---           ---         550        8/6/1991       ---          5        D      D                    ---
(D-17-16) 26aaa      55       596764   RICHARD ROLLAND                                2/22/2002     740           5        0-740          ---           ---         400       2/22/2002       ---          ---      D      D                    ---
(D-17-16) 26aac      55       543058   SIMPSON, JAMES,                                4/12/1994     400           8        0-400          ---           ---          50       4/12/1994       ---         35        D      D                    ---
(D-17-16) 26ada      55       207892   MICHAEL & STACIE BOYD                             ---        400           5        0-200          ---           ---         200           ---         ---          ---      D      D                    ---
(D-17-16) 26bad      55       212194   BETH AUDREY ROBERTS                               ---        600           5        0-600          ---           ---         170           ---         ---          ---      D      D                    ---
(D-17-16) 26bad      55       599795   PAUL CRAWFORD CAMERON                             ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      ---    ---                  ---
(D-17-16) 26bdd    GWSI       UW-24                             ---                      ---         ---          6          ---          ---         4000           ---          ---         ---          ---      U      ---    Well is dry
(D-17-16) 26caa      55       87299    PERSELLIN, D                                   2/27/1981     700           4        0-700          ---           ---         550       2/27/1981       ---          ---      D      ---                  ---
(D-17-16) 26cca    GWSI       UW-25                             ---                      ---         ---          3          ---          ---         4140         93.5       12/16/1987    4046.5         ---      U      ---                  ---
(D-17-16) 26cdd      55       523676   BOYKO, DAVID, A                                   ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---                  ---
(D-17-16) 26daa      55       561530   HAGAN, TIM,                                    3/20/1997     445           8        0-445          ---           ---         230       3/20/1997       ---          ---      D      D                    ---
(D-17-16) 26daa      55       562975   HALL, LESLIE ANN,                                 ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---                  ---
(D-17-16) 26daa      55       570475   LESLIE ANN HALL                                   ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---                  ---
(D-17-16) 26dab      55       562009   MCDONALD, RONALD,                                 ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---                  ---
(D-17-16) 26dab      55       569631   MATT FEDEROFF                                  6/27/1999     400           8        0-400          ---           ---         145       6/27/1999       ---          ---      D      D                    ---
(D-17-16) 26dda      55       556154   RALPH V JR & LINDA S SCHMIDT                   5/21/1997     600           8          ---          ---           ---         165       5/21/1997       ---          ---      D      D                    ---
(D-17-16) 26ddc      55       543847   BOYKO, DAVID,                                  4/22/1995     550           6         0-24          ---           ---          55       4/22/1995       ---          5        D      D                    ---
(D-17-16) 27cac      55       587332   DONNA ALLRED-FISHER                           11/28/2001     730           5        0-730          ---           ---         675       11/28/2001      ---         15        D      D                    ---
(D-17-16) 27dbc    GWSI       UW-26                             ---                      ---         ---          4          ---          ---         4245         211.2       4/1/1982     4033.8         ---      U      ---                  ---
(D-17-16) 28aaa      55       210783   TOM POST                                       3/21/2006     1100          6        0-1100         ---           ---         600       3/21/2006       ---          ---     D, I    D                    ---
(D-17-16) 28aaa      55       535375   SCHULTE, JOE,                                  9/23/1992     550           8        0-550          ---           ---         450       9/23/1992       ---          ---     D, I    D                    ---
(D-17-16) 28aac      55       200350   HOWARD BRAUNER                                    ---        665           5        0-665          ---           ---         160           ---         ---          ---      D      D                    ---
(D-17-16) 28aac      55       544323   BARTLETT, GORDON, R                            3/13/1995     900           8         0-20          ---           ---         540       3/13/1995       ---          ---      D      D                    ---
(D-17-16) 28aad      55       519189   TOM POST                                      12/18/1987     470           8        0-245          ---           ---         325       12/18/1987      ---         10        D      D                    ---
(D-17-16) 28aad      55       598561   R.V. COOKENMASTER                                 ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---                  ---




                                                                                                               Page 4 of 22
                                                                        INVENTORY OF WELL RECORDS AND CONSTRUCTION INFORMATION WITHIN TWO (2) MILES

                                                                                      ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                             CASING                                  NON-PUMPING WATER LEVEL
                              ADWR                                                                                                                   ALTITUDE
                               WELL                                                                 DEPTH                             PERFORATED     OF LAND                                             PUMPING
   CADASTRAL        WELL     REGISTRY                                                   DATE       DRILLED      DIAMETER    DEPTH      INTERVAL      SURFACE       DEPTH          DATE      ALTITUDE      RATE     WATER
    LOCATION      REGISTRY   NUMBER                            OWNER                 COMPLETED     (ft, bls)a    (inches)    (feet)      (ft, bls)   (ft, amsl)b   (ft, bls)   MEASURED     (ft, amsl)    (gpm)c   USEd    LOGSe       REMARKS
(D-17-16) 28abb      55       560671  MONTHER ALHOSAH                                 2/27/1997       701            5       0-701           ---          ---        260        2/27/1997        ---        ---     D        D            ---
(D-17-16) 28acb      55       590889   EDGARDO LAGUILLO                                5/17/2002     655           5        0-425          ---           ---         122        5/17/2002      ---          ---      D      D             ---
(D-17-16) 28ada      55       202323   LAWRENCE GENTRY                                    ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---           ---
(D-17-16) 28add      55       594731   GORDON & PATRICIA BARTLETT                         ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---           ---
(D-17-16) 28bbb      55       519921   GEORGE & BARBARA CISNEROS                       1/4/1988      200           8         0-20          ---           ---          ---          ---         ---         11        D      D             ---
(D-17-16) 28bda      55       200346   DANIEL KING                                    11/13/2003     745           5        0-745          ---           ---         35        11/13/2003      ---          5        D      D             ---
(D-17-16) 28bda      55       575301   DENNIS MICHAEL BLUME                            7/10/1999     240           4        0-240          ---           ---         100        7/10/1999      ---          ---      D      D             ---
(D-17-16) 28bdc      55       519943   BRIDGE, JEFFREY,                                1/15/1988     520           8        0-520          ---           ---         120        1/15/1988      ---          ---      D      D      ABANDONED
(D-17-16) 28bdc      55       524490   BRIDGE, JEFFREY,                                   ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---           ---
(D-17-16) 28bdc      55       525782   GOLPER, RONNA,                                  9/27/1989     315           6        0-215          ---           ---          90        9/27/1989      ---          ---      D      D             ---
(D-17-16) 28bdc      55       526911   JAWORSKI, DAVID,                                   ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---           ---
(D-17-16) 28bdc      55       528533   HALE, CARROL R,                                 8/16/1990     560           8         0-20          ---           ---         460        8/16/1990      ---          5        D      D             ---
(D-17-16) 28caa      55       504079   EDGARDO LAGUILLO                                11/7/1982     300           5        0-300          ---           ---          40        11/7/1982      ---         20        D      D             ---
(D-17-16) 28ddb      55       556359   MOMANDEYER PARTNERS LLC                        10/20/1996     553           6        0-553          ---           ---         130       10/20/1996      ---          ---      D      D             ---
(D-17-16) 29aac      55       545753   STEWART, JAMES,                                12/27/1994     765           6        0-765          ---           ---         165       12/27/1994      ---          ---      D      D             ---
(D-17-16) 29aca      55       203758   SCOTT & TRACY RYCKMAN                              ---        1200          7         0-23          ---           ---         185           ---         ---          ---      D      D             ---
(D-17-16) 29aca      55       580397   FLOYD STUMP                                     5/12/2000     1100          6         0-24          ---           ---         503        5/12/2000      ---          4        D      D             ---
(D-17-16) 29adb      55       560676   JANET HOLMES                                       ---        700           5        0-700          ---           ---         106           ---         ---          5        D      D             ---
(D-17-16) 29bab      55       548428   CHARLES J JR & DOLORES LAWRIE HIGGINS           5/11/1995     780           8          ---          ---           ---         380        5/11/1995      ---          ---     D, S    D             ---
(D-17-16) 29bad      55       544120   WALTER L & MARY K COVEN REVOCABLE TRUST         7/20/1994     820           6        0-820          ---           ---         470        7/20/1994      ---          5        D      D             ---
(D-17-16) 29bbb      55       528639   HICKS, DANIEL,                                  8/7/1990      365           8        0-365          ---           ---         140        8/7/1990       ---          1       D, I    D             ---
(D-17-16) 29bbc      55       572392   EDWARD J BUDKA                                     ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      ---    ---           ---
(D-17-16) 29bbc      55       572421   DALE THOMPSON                                   3/22/1999     420           5        0-420          ---           ---          72        3/22/1999      ---          ---      D      D             ---
(D-17-16) 29bbd      55       526275   CASSIDY, WAYNE, A                               5/10/1990     200           8        0-200          ---           ---          55        5/10/1990      ---          6        D      D             ---
(D-17-16) 29bca      55       594455   KYLE AND DARLENE ROBINSON                          ---        303           5        0-303          ---           ---          78           ---         ---          ---      D      D             ---
(D-17-16) 29bcb      55       514763   JASON SINCLAIR                                  7/20/1986     401           6        0-401          ---           ---         240        7/20/1986      ---          5        D      D             ---
(D-17-16) 29bcd      55       541927   LARKIN, DAVID,                                  3/8/1994      800           6        0-800          ---           ---         700        3/8/1994       ---          ---      D      D             ---
(D-17-16) 29bda      55       541613   STUMP, FLOYD,                                   2/22/1994     800           6        0-800          ---           ---          ---          ---         ---          5        D      D             ---
(D-17-16) 29caa      55       560197   FLOYD STUMP                                     1/20/1997     785           6          ---          ---           ---          30        1/20/1997      ---          ---      D      D             ---
(D-17-16) 29caa      55       581530   WILLIAM TOWLE                                   10/2/2000     1050          6         0-48          ---           ---          65        10/2/2000      ---          7        D      D             ---
(D-17-16) 29cab      55       560198   WILLIAM THRALL                                  2/1/1997      802           6          ---          ---           ---         200        2/1/1997       ---          3        D      D             ---
(D-17-16) 29cad      55       560199   RICHARD AND ANITA RUTHERFORD                       ---        760           6         0-21          ---           ---          35           ---         ---          0        D      D             ---
(D-17-16) 29cbb      55       595879   RAMSEY, F O                                     12/3/2002     400           5        0-390          ---           ---          60        12/3/2002      ---         16        D      D             ---
(D-17-16) 29cbc      55       561938   MATTHEWS, BELLE,                                11/2/1997     710           7        0-710          ---           ---         240        11/2/1997      ---          5        D      D             ---
(D-17-16) 29ccb      55       575271   JAMES WINSKY                                       ---        900           8         0-20          ---           ---          50           ---         ---         10        D      D             ---
(D-17-16) 29cdd      55       560722   SANTA RITA MOUNTAIN ESTATES WATER CORP             ---         ---          ---        ---          ---           ---          ---          ---         ---         12        D      ---           ---
(D-17-16) 29dab      55       592408   DAVID KNIGHT                                    6/11/2002     602           5        0-600          ---           ---         300        6/11/2002      ---          ---      D      D             ---
(D-17-16) 29dba      55       581454   STEPHEN HOPKINS                                 8/10/2000     1025          6         0-24          ---           ---         304        8/10/2000      ---          5        D      D             ---
(D-17-16) 29dbb      55       546362   HOPKINS & SORIANO, R,                           1/24/1995     800           6        0-800          ---           ---          ---          ---         ---          ---      D      D             ---
(D-17-16) 29ddc      55       575346   JAMES WINSKY                                       ---        800           8        0-170          ---           ---          50           ---         ---          ---      D      D             ---
(D-17-16) 30aaa      55       593426   RICHARD & PEGGY FORREST                        12/30/2002     260           5        0-260          ---           ---          70       12/30/2002      ---          ---      D      D             ---
(D-17-16) 30aad      55       555034   RONALD C GRIMES                                 3/8/1996      400           8        0-400          ---           ---         120        3/8/1996       ---          ---      D      D             ---
(D-17-16) 30aad      55       584078   THOMAS JOHNSTON                                12/22/2000     800           6         0-24          ---           ---         112       12/22/2000      ---          ---      D      D             ---
(D-17-16) 30abb      55       804938   KLASE, MARK & A. LAUREN                            ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---           ---




                                                                                                                Page 5 of 22
                                                                        INVENTORY OF WELL RECORDS AND CONSTRUCTION INFORMATION WITHIN TWO (2) MILES

                                                                                      ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                             CASING                                  NON-PUMPING WATER LEVEL
                              ADWR                                                                                                                   ALTITUDE
                               WELL                                                                 DEPTH                             PERFORATED     OF LAND                                               PUMPING
   CADASTRAL        WELL     REGISTRY                                                   DATE       DRILLED      DIAMETER    DEPTH      INTERVAL      SURFACE       DEPTH         DATE         ALTITUDE      RATE     WATER
    LOCATION      REGISTRY   NUMBER                             OWNER                COMPLETED     (ft, bls)a    (inches)    (feet)      (ft, bls)   (ft, amsl)b   (ft, bls)   MEASURED       (ft, amsl)    (gpm)c   USEd      LOGSe         REMARKS
(D-17-16) 30aca      55       535376  SCHULTE, JOE,                                    9/7/1992      1000            8      0-1000           ---          ---        420        9/7/1992           ---        ---    D, S        D              ---
(D-17-16) 30acb      55       528760   SCHULTE, JOE,                                      ---         ---          ---        ---          ---           ---          ---           ---          ---          ---     D, S      ---              ---
(D-17-16) 30acb      55       535377   SCHULTZ, JOE,                                  10/10/1992     250           8        0-250          ---           ---         100        10/10/1992       ---          ---      D        D                ---
(D-17-16) 30ada      55       549677   OCHOTORENA, RAYMOND,                            5/11/1995     700           8         0-20          ---           ---         365        5/11/1995        ---          ---      D        D                ---
(D-17-16) 30adb      55       545610   JONATHAN A HESS                                 12/1/1994     720           8        0-720          ---           ---         385        12/1/1994        ---          ---      D        D                ---
(D-17-16) 30adc      55       545491   STEVE PETERSON                                  9/3/1994      730           8        0-730          ---           ---         590         9/3/1994        ---          ---      D        D                ---
(D-17-16) 30add      55       528761   BEDSAUL, DEL & MARG,                            8/2/1990      625           8         0-20          ---           ---          ---           ---          ---          ---    D, S, I    D                ---
(D-17-16) 30add      55       542296   WINSKY, JAMES, A                                8/22/1994     630           8        0-630          ---           ---         286        8/22/1994        ---          ---     D, S      D                ---
(D-17-16) 30bac      55       526612   BEECK, HERM,                                       ---         ---          ---        ---          ---           ---          ---           ---          ---          ---      D        ---              ---
(D-17-16) 30bac      55       530545   BEECK, HERM,                                    3/8/1991      430           8        0-330          ---           ---          72         3/8/1991        ---          ---      D        D                ---
(D-17-16) 30bac      55       576685   TOM MONEY                                      12/21/1999     500           5        0-475          ---           ---         112        12/21/1999       ---          5        D        D                ---
(D-17-16) 30bbd      55       572454   STREHLE JOSEPH                                  4/3/1999      325           5        0-320          ---           ---          75         4/3/1999        ---          2        D        D                ---
(D-17-16) 30bcd      55       597827   RODNEY A DOWNS                                     ---         ---          ---        ---          ---           ---          ---           ---          ---          ---     D, S      ---              ---
(D-17-16) 30bda      55       804910   HAFERKAMP, ROD & MARY                           1/1/1930       60           20        0-35          ---           ---          35         1/1/1930        ---          ---      S        ---              ---
(D-17-16) 30bdc      55       552141   LUIKART, CARL, D                                12/5/1995     320           5        0-300          ---           ---         160        12/5/1995        ---         10        D        D                ---
(D-17-16) 30bdd      55       591787   JACK & LENORE HILSON                            7/12/2002     590           5        0-590          ---           ---          98        7/12/2002        ---          ---      D        D                ---
(D-17-16) 30caa      55       514612   CLARKE, RICHARD, S                              3/26/1987      45           5         0-45          ---           ---          18        3/26/1987        ---          7        D        D      ABANDONED
(D-17-16) 30caa      55       546430   KATZ, KALMAN, R                                12/18/1994     800           8        0-800          ---           ---         320        12/18/1994       ---          5        D        D                ---
(D-17-16) 30cad      55       528994   MARTIN, DAVID H,                                   ---         ---          ---        ---          ---           ---          ---           ---          ---          ---     D, I      ---              ---
(D-17-16) 30cad      55       533398   MARTIN, DAVID, H                                11/4/1991     500           4        0-500          ---           ---          99        11/4/1991        ---          7      NONE       D                ---
(D-17-16) 30ccc      55       557277   JOSEPH T WILLIAMS                               8/20/1996     395           8        0-395          ---           ---         125        8/20/1996        ---          ---      D        D                ---
(D-17-16) 30dbb      55       560043   WEST, RICHARD, A                                2/20/1997     795           8        0-795          ---           ---         160        2/20/1997        ---          5        D        D                ---
(D-17-16) 30dbc      55       563111   SCHWENN, EDMUND, D                              8/22/1997     770           5        0-375          ---           ---         149        8/22/1997        ---          5        D        D                ---
(D-17-16) 30dbd      55       526409   CLICK, SCOTT & KIM,                            11/17/1989     520           8         0-20          ---           ---         180        11/17/1989       ---         10        D        D                ---
(D-17-16) 30dca      55       579454   WALTER & LYNN SEXTON                            6/7/2000      700           5        0-700          ---           ---          87         6/7/2000        ---          ---      D        D                ---
(D-17-16) 30dcb      55       543497   WESTENBURG, CHUCK,                              8/26/1995     1025          6        0-1025         ---           ---         280        8/26/1995        ---          ---      D        D                ---
(D-17-16) 30dcb      55       804937   DOWNS TRUST, ROD                                8/15/2007     795           6        0-795          ---           ---          ---           ---          ---          ---      D        D                ---
(D-17-16) 30ddd      55       544747   ERNECOFF, JIM,                                     ---         ---          ---        ---          ---           ---          ---           ---          ---          ---      D        ---              ---
(D-17-16) 30ddd      55       577061   JAMES A WINSKY                                 12/22/1999     900           8         0-20          ---           ---          ---           ---          ---          ---      D        D                ---
(D-17-16) 35bba    GWSI       UW-27                              ---                      ---         ---          3          ---          ---         4162           52        1/18/1995       4110          ---      U        ---              ---
(D-17-17) 07bcb      55       512958   PIMA COUNTY                                        ---         ---          ---        ---          ---           ---          ---           ---          ---          ---      S        ---              ---
(D-17-17) 07cba      55       632478   PIMA COUNTY                                        ---         ---          4          ---          ---           ---          ---           ---          ---         12        S        ---              ---
                                                                                                                   8        0-440
(D-17-17) 07cdb   55,GWSI     512957   PIMA COUNTY                                    11/13/1985     440                                360-440        3685           75        11/13/1985       ---          ---      S        D      07cda in 55
                                                                                                                   6          ---
(D-17-17) 08cca      55       547898   ED M & VIRGINIA LAYTON                          3/3/1995      560           8         0-20          ---           ---          ---           ---          ---          ---      D        D                ---
(D-17-17) 18ccd      55       558407   NIEMAN, MICHAEL, J C                            7/3/1996      420           8        0-420          ---           ---         110         7/3/1996        ---          ---      D        D                ---
(D-17-17) 18dbd      55       514176   ANDRADA PROPERTIES,                             8/3/1986      388           8        0-388          ---           ---          40         8/3/1986        ---          ---      D        D                ---
(D-17-17) 18ddb      55       506913   KITTLE, J S                                    12/29/1983     500           ---        ---          ---           ---          ---           ---          ---          ---      D        D      CAPPED
(D-17-17) 18ddd      55       506914   KITTLE, J S                                    12/30/1983     500           ---        ---          ---           ---          ---           ---          ---          ---      D        D      CAPPED
(D-17-17) 19aca    GWSI       UW-28    LAYTON                                             ---         ---          ---        ---          ---         3880           ---           ---          ---          ---      D        ---              ---
(D-17-17) 19bda    GWSI       UW-29                              ---                      ---         ---          ---      ?-230          ---         3865           ---           ---          ---          ---      ---      ---              ---
(D-17-17) 19dba      55       559565   ANDRADA PROPERTY OWNER ASSOCIATES               7/28/1997     200           8        0-200          ---           ---          58        7/28/1997        ---         30        D        D                ---
(D-17-17) 19dba      55       804905   ANDRADA PROPERTIES,                                ---         45           ---        ---          ---           ---          5        ############      ---          ---      D        ---              ---
(D-17-17) 19dbb      55       545055   ANDRADA PROPERTIES,                                ---         ---          ---        ---          ---           ---          ---           ---          ---          ---     I, S      ---              ---
(D-17-17) 19dbb      55       804904   ANDRADA PROPERTIES,                                ---         40           8         0-15          ---           ---          5        ############      ---         30        D        ---              ---




                                                                                                                Page 6 of 22
                                                                         INVENTORY OF WELL RECORDS AND CONSTRUCTION INFORMATION WITHIN TWO (2) MILES

                                                                                       ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                              CASING                                  NON-PUMPING WATER LEVEL
                                ADWR                                                                                                                  ALTITUDE
                                 WELL                                                                DEPTH                             PERFORATED     OF LAND                                             PUMPING
   CADASTRAL        WELL       REGISTRY                                                 DATE        DRILLED      DIAMETER    DEPTH      INTERVAL      SURFACE       DEPTH         DATE       ALTITUDE      RATE     WATER
    LOCATION      REGISTRY     NUMBER                          OWNER                  COMPLETED     (ft, bls)a    (inches)    (feet)      (ft, bls)   (ft, amsl)b   (ft, bls)   MEASURED     (ft, amsl)    (gpm)c   USEd    LOGSe         REMARKS
(D-17-17) 30ccc      55         804744  ANDRADA RANCH LTD,                               ---            ---          ---        ---           ---          ---          ---        ---            ---        ---     S        ---            ---
(D-17-17) 30ccc       55        804804   AZ STATE LAND DEPT,                               ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      S      ---               ---
(D-17-17) 31aab    GWSI,35      UW-30                              ---                  1/1/1972       ---          6          ---          ---         4000        122.24      11/8/1972     3877.76        ---      D      ---               ---
(D-17-17) 31aba       55        638771   BURHANS, D L                                   5/12/1976     250           5         0-250      220-250          ---         128       5/13/1976       ---         30        D      ---               ---
                                                                                                                    6          0-20        ---
(D-17-17) 31abb       35        73958    Gerald A MARTIN                                4/13/1979     250                                                 ---         116       4/13/1979       ---          ---      D      D                 ---
                                                                                                                    4         0-250      230-250
(D-17-17) 31abd       55        502893   HENRY, RICHARD,                               11/26/1982     300           4         0-300        ---            ---         105       11/26/1982      ---         10        D      D                 ---
(D-17-17) 31acb       55        631146   CARBONE, F A                                   10/1/1980     365           5         0-365         ---           ---         120       10/1/1980       ---          8        D      ---               ---
                                                                                                                    6         0-10
(D-17-17) 31acb       35        84107    Frank CARBONE                                 10/29/1980     360                                   ---           ---         100       10/29/1980      ---          ---      D      D                 ---
                                                                                                                    4        10-385
(D-17-17) 31add    GWSI,35      UW-31                              ---                  2/1/1973      112           8         0-200        50-?         4160         53.36      6/12/1973     4106.64        ---      D      G      casing depth 0-50 in 35
(D-17-17) 31b         55        640181   ROBERT BLAKELY                                    ---        280           6          ---          ---           ---         175           ---         ---         34       D, S    ---               ---
(D-17-17) 31baa     55,35       602142   ROMANOSKI, P E                                10/27/1971     154           8          ---          ---           ---         112       10/27/1971      ---          ---      D      ---               ---
(D-17-17) 31bba   55,GWSI,35    630150   THAYER, J A                                    1/1/1957       37           1          0-37        ---          3918         23.2        3/2/2000      3895         10        D      ---               ---
                                                                                                                    3         0-125        ---
(D-17-17) 31bbb   55,GWSI,35    630151   THAYER, J A                                    1/1/1960      126                                               3972          126        3/1/1977       ---          ---      S      D                 ---
                                                                                                                    2        125-126     125-126
(D-17-17) 31bbb       35        UW-32                              ---                     ---         ---          4           ---        ---            ---          ---          ---         ---          ---      D      ---               ---
(D-17-17) 31bbc       55        556602   THAYER, RUTH, T                               10/16/1996     123           5         0-42          ---           ---          13       10/16/1996      ---         10        D      D                 ---
(D-17-17) 31bca       55        804906   ADAMS, JOYCE                                      ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---               ---
(D-17-17) 31bca    GWSI,35      807949   MATTHEW MCKENZIE                               5/24/1975     200           4         0-200         ---         3960           ---          ---         ---          ---      D      D                 ---
(D-17-17) 31bdb       55        599377   DAVID LAZARUS                                     ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---               ---
(D-17-17) 31bdd       55        558883   KUHN, FRED, P                                  9/18/1996     425           5         0-100         ---           ---          ---          ---         ---          7        D      D                 ---
(D-17-17) 31caa       55        599214   MICHAEL BURTON                                    ---        580           5         0-580         ---           ---         115           ---         ---          5        D      D                 ---
(D-17-17) 31caa       55        633661   WHITEFIELD, JAMES,                             6/3/1973      320           4         0-250         ---           ---          50        6/3/1973       ---          5        D      ---               ---
(D-17-17) 31caa   55,GWSI,35    633662   MICHAEL BURTON                                 6/1/1973      440           4         0-400         ---         4080           90        1/1/1974       ---          ---     D, S    D                 ---
(D-17-17) 31caa       55        633663   JOSEPH NIKRASCH III                            6/6/1973      250           4         0-200         ---           ---          ---          ---         ---          5        D      ---               ---
(D-17-17) 31caa       35        26675    C WILLIS                                      12/23/1973     375           4         0-375         ---           ---         100       2/15/1974       ---          ---      D      D                 ---
(D-17-17) 31cbc       55        565869   JOSEPH NIKRASCH III                            1/6/1998      440           4         0-440         ---           ---         280        1/6/1998       ---         12        D      D                 ---
(D-17-17) 31ccb       55        553915   LAVERY, GLENN,                                    ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---               ---
(D-17-17) 31ccb       55        565608   PAUL & GERI SMITH                              6/5/1998      500           6         0-21          ---           ---         108        6/5/1998       ---          ---      D      D                 ---
(D-17-17) 31ccc       55        556326   BRENDAN MADDOCK                                   ---        220           6         0-24          ---           ---          ---          ---         ---          ---      D      D                 ---
(D-17-17) 31cda       55        598664   ROBERT KEITH LOFFI                                ---        500           6         0-21          ---           ---          85           ---         ---          ---      D      D                 ---
(D-17-17) 31cdb       55        526591   ROGER & PATRICIA REEVES                       11/26/1990     275           5         0-21          ---           ---          60       11/26/1990      ---          5        D      D                 ---
(D-17-17) 31daa       55        573484   FLOYD STUMP                                       ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      ---    ---               ---
(D-17-17) 31dac       55        573482   FLOYD STUMP                                       ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      ---    ---               ---
(D-17-17) 31dad       55        573483   FLOYD STUMP                                       ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      ---    ---               ---
(D-17-17) 31dbb       55        572786   REX STUMP                                         ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---               ---
(D-17-17) 31dcb       55        572840   DAN BALDWIN                                    7/2/1999      503           5         0-500         ---           ---          ---          ---         ---          5        D      D                 ---
(D-17-17) 31dcb       55        573485   WILLIAM SLANAKER                               5/12/1999     200           5         0-200         ---           ---          23       5/12/1999       ---         15        D      D                 ---
(D-17-17) 31dcd     55,35       636323   NIELSEN, M L                                   1/1/1928       24           ---        ---          ---           ---          12       4/21/1970       ---          ---      D      D                 ---
(D-18-15) 02ac      GWSI        UW-33    W L JOHNSON                                       ---         ---          ---        -20          ---         3800           ---          ---         ---          ---      D      ---               ---
(D-18-15) 10bcd    GWSI,35      UW-34                              ---                     ---         ---          ---        ---          ---         3690           61        2/1/1970      3629          ---      ---    ---               ---
(D-18-15) 10cab    GWSI,35      UW-35                              ---                     ---         ---          ---        ---          ---         3705           67        2/1/1970      3638          ---      ---    ---               ---
(D-18-15) 10cbc    GWSI,35      UW-36                              ---                     ---         ---          ---        0-5          ---         3730           ---          ---         ---          ---      ---    ---               ---
(D-18-15) 10cda    GWSI,35      UW-37                              ---                     ---         ---          ---        ---          ---         3775           35        2/1/1970      3740          ---      ---    ---               ---
(D-18-15) 11          55        533262   PFIZER INC,                                    11/2/1991     170           ---        ---          ---           ---          ---          ---         ---          ---    NONE     D                 ---
(D-18-15) 12bab       55        804864   CORONADO NATIONAL FOREST,                         ---         ---          ---        ---          ---           ---          ---          ---         ---         35        S      ---               ---




                                                                                                                 Page 7 of 22
                                                                         INVENTORY OF WELL RECORDS AND CONSTRUCTION INFORMATION WITHIN TWO (2) MILES

                                                                                       ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                              CASING                                  NON-PUMPING WATER LEVEL
                               ADWR                                                                                                                   ALTITUDE
                                WELL                                                                 DEPTH                             PERFORATED     OF LAND                                             PUMPING
   CADASTRAL         WELL     REGISTRY                                                   DATE       DRILLED      DIAMETER    DEPTH      INTERVAL      SURFACE       DEPTH         DATE       ALTITUDE      RATE     WATER
    LOCATION       REGISTRY   NUMBER                      OWNER                       COMPLETED     (ft, bls)a    (inches)    (feet)      (ft, bls)   (ft, amsl)b   (ft, bls)   MEASURED     (ft, amsl)    (gpm)c   USEd     LOGSe       REMARKS
(D-18-15) 12dab       55       634355  ROSEMONT COPPER COMPANY                         11/20/1976      920            4       0-250           ---          ---        130       11/20/1976        ---        ---    S, D       ---          ---
(D-18-15) 12dac       55       804863   CORONADO NATIONAL FOREST,                          ---         ---          ---        ---          ---           ---          ---          ---         ---         35        S       ---             ---
(D-18-15) 13acb       55       804861   CORONADO NATIONAL FOREST,                          ---         ---          ---        ---          ---           ---          ---          ---         ---         35        S       ---             ---
(D-18-15) 13bdb       55       804862   CORONADO NATIONAL FOREST,                          ---         ---          ---        ---          ---           ---          ---          ---         ---         35        S       ---             ---
(D-18-15) 14          55       533261   PFIZER INC,                                    10/23/1991     172           ---        ---          ---           ---          ---          ---         ---          ---    NONE      D               ---
(D-18-15) 14aa        55       568132   GEORGIA MARBLE CO. OF AZ                           ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE      ---             ---
(D-18-15) 14aac       55       804901   SPECIALTY MINERALS,                            12/31/1971     250           8        0-100          ---           ---          10       12/31/1971      ---         60      MIN, D    ---             ---
(D-18-15) 14aac1   GWSI,35     UW-38                               ---                  5/28/1971     203           8        0-160          ---         4200           30        5/28/1971     4170          ---      D       D               ---
(D-18-15) 14aac2   GWSI,35     UW-39                               ---                  6/3/1971      230           ---        ---          ---         4200           60        6/3/1971      4140          ---      ---     D               ---
(D-18-15) 14caa       55       507937   ANAMAX MINING CO,                               5/24/1984     1014          20         ---          ---           ---          ---          ---         ---          ---    NONE      D      ABANDONED
(D-18-15) 14caa       55       511196   ANAMAX MINING CO,                               7/9/1985      1014          20         ---          ---           ---          ---          ---         ---          ---    NONE      D      ABANDONED
(D-18-15) 15baa1   GWSI,35     UW-40                               ---                     ---         ---          ---        ---          ---         3835           ---          ---         ---          ---      ---     ---             ---
(D-18-15) 15baa2    GWSI       UW-41    SANTA RITA RANCH                                   ---         ---          ---        ---          ---         3840         73.8       10/27/1981    3766.2         ---      S       ---             ---
(D-18-15) 15bab    GWSI,35     UW-42                               ---                     ---         ---          ---        ---          ---         4100           ---          ---         ---          ---      ---     ---             ---
(D-18-15) 15bac       55       501989   LEBRECHT, ROYDEN,                               2/7/1982      305           4        0-200          ---           ---         150        2/7/1982       ---          ---     D, S     D               ---
(D-18-15) 15bac       55       501990   LEBRECHT, ROYDEN,                               2/10/1982     185           4        0-173          ---           ---         140        2/10/1982      ---          ---      D       D               ---
(D-18-15) 15bac       55       634354   LEBRECHT, ROYDEN,                                  ---         ---          ---        ---          ---           ---          ---          ---         ---          ---     S, D     ---             ---
(D-18-15) 15bac    GWSI,35     UW-43                               ---                     ---         ---          ---      ?-160          ---         3880           20        1/1/1970      3860          ---      ---     ---             ---
(D-18-15) 15bac1    GWSI       UW-44                               ---                     ---         ---          10         ---          ---         3905           ---          ---         ---          ---     D, S     ---             ---
(D-18-15) 15bac2    GWSI       UW-45                               ---                     ---         ---           6         ---          ---         3910         74.6        2/25/2005    3835.4         ---      U       ---             ---
                                                                                                                     6
(D-18-15) 15bac3    GWSI       UW-46                               ---                     ---         ---                     ---          ---         3890         87.7        2/25/2005    3802.3         ---      U       ---             ---
                                                                                                                     4
(D-18-15) 15bba    GWSI,35     UW-47                               ---                     ---         ---          ---       0-20          ---         3835           81        1/1/1970      3754          ---      ---     ---             ---
(D-18-15) 15cac    GWSI,35     UW-48                               ---                     ---         ---          ---        ---          ---         4020           64        1/1/1970      3956          ---      ---     ---             ---
(D-18-15) 15cbd     GWSI       UW-49                               ---                     ---         ---          4          ---          ---         3999         66.04       12/8/1987    3932.96        ---      U       ---             ---
(D-18-15) 15cca       55       507936   ANAMAX MINING CO,                                  ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE      ---             ---
(D-18-15) 15cca       55       511197   LEBRECHT, ROYDEN,                                  ---         ---          ---      0-710          ---           ---          ---          ---         ---          ---    NONE      D      CAPPED
(D-18-15) 15ccb    GWSI,35     UW-50                               ---                     ---         ---          ---        ---          ---         4000           90        1/1/1970      3910          ---      ---     ---             ---
(D-18-15) 15cda    GWSI,35     UW-51                               ---                     ---         ---          ---        ---          ---         4070           ---          ---         ---          ---      ---     ---             ---
(D-18-15) 15cdb    GWSI,35     UW-52                               ---                     ---         ---          ---        ---          ---         4050           72        1/1/1970      3978          ---      ---     ---             ---
(D-18-15) 15ddb       55       507938   ANAMAX MINING CO,                                  ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE      ---             ---
(D-18-15) 15ddb       55       511053   ANAMAX MINING CO,                                  ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE      ---             ---
(D-18-15) 22a         55       641672   CORONADO NATIONAL FOREST,                          ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      S       ---             ---
(D-18-15) 22abb    GWSI,35     UW-53                               ---                     ---         ---          ---        ---          ---         4120           59           ---         ---          ---      ---     ---             ---
(D-18-15) 22abc     GWSI       UW-54    RANCH SANTA RITA                                5/1/1970      110           8          ---          ---         4155         77.2        3/3/2005     4077.8         ---      D       G               ---
(D-18-15) 22abc       35       UW-55    USDA FOREST SERVICE                             1/1/1970      110           ---        ---          ---           ---          71        1/1/1970       ---          ---      S       D               ---
(D-18-15) 22abd       55       635396   SANTA RITA RANCH INC,                           1/1/1969       97           8         0-40          ---           ---          85        1/1/1969       ---          3        S       ---             ---
(D-18-15) 22adb     GWSI       804754   ROYANNA MOORE                                      ---        165           8          ---          ---         4230         83.9        2/25/2005    4146.1         ---      U       ---             ---
(D-18-15) 22adb       55       804754   MOORE, ROYANNA, L                               2/28/1966     165           8        0-165          ---           ---          ---          ---         ---         14       D, S     ---             ---
(D-18-15) 22bc        55       804858   BUSHBOOM ET AL, JOE                             4/20/1977     350           8         0-40          ---           ---          80        4/20/1977      ---          5        D       ---             ---
(D-18-15) 22cbb       55       524072   HAWKINS, JOHN & B.,                             4/4/1989      680           8         0-21          ---           ---         600        4/4/1989       ---          ---     D, S     D               ---
(D-18-15) 22cbb       55       804893   HAWKINS, JOHN & B,                              1/30/1978     500           6         0-40          ---           ---          ---          ---         ---          1        D       ---             ---
(D-18-15) 22cbb     GWSI       805420   J.N. HAWKINS                                    1/1/1976      500           8         0-40          ---         4110         200.3       2/25/2005    3909.7         ---     D, S     ---             ---
(D-18-15) 22cdb       55       602351   SNOW, J B                                       5/9/1973      178           8          ---          ---           ---         165        5/9/1973       ---          ---      D       ---             ---
(D-18-15) 22cdb      35,55     640317   PALLANES, F L                                   1/1/1977      600           8        0-600          ---           ---          90        1/1/1977       ---          5        D       D               ---




                                                                                                                 Page 8 of 22
                                                                        INVENTORY OF WELL RECORDS AND CONSTRUCTION INFORMATION WITHIN TWO (2) MILES

                                                                                            ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                                   CASING                                  NON-PUMPING WATER LEVEL
                              ADWR                                                                                                                         ALTITUDE
                               WELL                                                                       DEPTH                             PERFORATED     OF LAND                                            PUMPING
   CADASTRAL        WELL     REGISTRY                                                          DATE      DRILLED      DIAMETER    DEPTH      INTERVAL      SURFACE       DEPTH         DATE      ALTITUDE      RATE     WATER
    LOCATION      REGISTRY   NUMBER                            OWNER                        COMPLETED    (ft, bls)a    (inches)    (feet)      (ft, bls)   (ft, amsl)b   (ft, bls)   MEASURED    (ft, amsl)    (gpm)c   USEd    LOGSe         REMARKS
(D-18-15) 22cdb      35        47820  K SNOW                                                  1/1/1987      178            8         ---           ---          ---         165       1/1/1987        ---        ---     ---      D              ---
(D-18-15) 22daa      55       574003   MID AMERICA ASSOC FOR AUTISTIC TRAINING & RESEARCH       ---         ---           8       0-850          ---           ---          ---          ---        ---          ---      D      D                ---
                                                                                                                          6       0-265
(D-18-15) 22dca   55,GWSI     523832   SALIDO, RENE, C                                       3/25/1989     265                                215-265        4340         58.8       1/18/1995    4281.2        22       D, S    D                ---
                                                                                                                          4        0-21
(D-18-15) 22dca      55       527979   SALIDO, RENE, C                                       6/10/1990     605           ---      0-605         ---            ---         260       6/10/1990      ---          8        D      D                ---
                                                                                                                         10       0-215         ---
(D-18-15) 22dcd   55,GWSI     524634   SALIDO, RENE, C                                       6/11/1989     215                                               4350         61.1       1/18/1995    4288.9        25       D, S    D      22dca in 55
                                                                                                                          8        0-?        180-215
(D-18-15) 23         55       507935   ROSEMONT COPPER COMPANY                               6/9/1984       91            3       0-190         ---            ---          ---          ---        ---          ---    NONE     D      CAPPED
(D-18-15) 23         55       511539   ROSEMONT COPPER COMPANY                                  ---          6           6        0-171          ---           ---          ---          ---        ---          ---    NONE     D      CAPPED
(D-18-15) 23bac      55       514398   ANAMAX MINING CO,                                     6/19/1986     805           10       0-805          ---           ---          ---          ---        ---          ---    NONE     D      ABANDONED
(D-18-15) 23bbd      55       635398   SANTA RITA RANCH INC,                                 1/1/1978      400           6         0-20          ---           ---          20        1/1/1978      ---         10        S      ---              ---
(D-18-15) 23bcc      55       532148   DIETZMAN, STAN,                                       7/9/1991      145           6        0-145          ---           ---          80        7/9/1991      ---          5        D      D                ---
(D-18-15) 23bd       55       635397   SANTA RITA RANCH INC,                                 1/1/1978      400           6         0-20          ---           ---          25        1/1/1978      ---         25        S      ---              ---
(D-18-15) 23ccc      55       573043   MID AMERICA ASSOC FOR AUTISTIC TRAINING & RESEARCH       ---         ---          8        0-750          ---           ---          ---          ---        ---          ---      D      D                ---
(D-18-15) 23ccc      55       597589   MID AMERICA ASSOC FOR AUTISTIC TRAINING & RESEARCH       ---        990           9         0-20          ---           ---          ---          ---        ---          ---      D      D                ---
(D-18-15) 24         55       507934   ASARCO INC,                                           6/6/1984       20           3        0-240          ---           ---          ---          ---        ---          ---    NONE     D      ABANDONED
(D-18-15) 24         55       511198   ANAMAX MINING CO,                                     7/13/1985       5           ---        ---          ---           ---          ---          ---        ---          ---    NONE     D      ABANDONED
(D-18-15) 24cbc      55       634353   ROSEMONT COPPER COMPANY                               2/17/1982     315           8         0-20          ---           ---          20       2/17/1982      ---          ---      S      ---              ---
(D-18-15) 24ccc      55       511052   ANAMAX MINING CO,                                     6/26/1985     460           ---        ---          ---           ---          ---          ---        ---          ---    NONE     D      CAPPED
(D-18-15) 25         55       804914   ROSEMONT RANCH, LLC                                      ---         ---          ---        ---          ---           ---          ---         ---         ---          ---    OME      ---              ---
(D-18-15) 25         55       804921   ROSEMONT RANCH, LLC                                      ---        2198          ---        ---          ---           ---          ---         ---         ---          ---    OME      ---              ---
(D-18-15) 25         55       804924   ROSEMONT RANCH, LLC                                      ---         ---          ---        ---          ---           ---          ---         ---         ---          ---    NONE     ---              ---
(D-18-15) 25         55       804939   ROSEMONT COPPER COMPANY                                  ---         ---          ---        ---          ---           ---          ---         ---         ---          ---    OME      ---              ---
(D-18-15) 25         55       804960   ROSEMONT COPPER COMPANY                                  ---         ---          ---        ---          ---           ---          ---         ---         ---          ---    OME      ---              ---
(D-18-15) 25d        55       525265   ASARCO INC,                                           8/9/1989       76           ---      0-1230         ---           ---          ---          ---        ---          ---    NONE     D      ABANDONED
(D-18-15) 25dac      55       507743   ROSEMONT COPPER COMPANY                               5/12/1984      ---          ---        ---          ---           ---          ---          ---        ---          ---    NONE     D                ---
(D-18-15) 25dac      55       804961   ROSEMONT COPPER COMPANY                                  ---         ---          ---        ---          ---           ---          ---         ---         ---          ---    MON      ---              ---
(D-18-15) 25dba      55       804944   ROSEMONT COPPER COMPANY                                  ---         ---          ---        ---          ---           ---          ---         ---         ---          ---    MON      ---              ---
(D-18-15) 25dba      55       804945   ROSEMONT COPPER COMPANY                                  ---         ---          ---        ---          ---           ---          ---         ---         ---          ---    MON      ---              ---
(D-18-15) 25dca      55       527003   ROSEMONT COPPER COMPANY                               8/31/1990     410           4         0-50          ---           ---          ---          ---        ---          ---    NONE     D      CAPPED
(D-18-15) 25dca      55       530680   ASARCO INC,                                           8/3/1991       ---          ---        ---          ---           ---          ---          ---        ---          ---    NONE     D      ABANDONED
(D-18-15) 25dca      55       804911   ROSEMONT RANCH, LLC                                      ---         ---          ---        ---          ---           ---          ---         ---         ---          ---    NONE     ---              ---
(D-18-15) 25ddc      55       521852   ASARCO INC,                                           10/5/1988      ---          ---        ---          ---           ---          ---          ---        ---          ---    NONE     D      ABANDONED
(D-18-15) 26bdb      55       635389   SANTA RITA RANCH INC,                                 1/1/1978       ---          ---        ---          ---           ---          ---          ---        ---          ---      S      ---              ---
(D-18-15) 27aad   55,GWSI     510181   BIRKHOLZ, R                                           2/6/1985      970           8         0-20          ---         4525         271.6      1/18/1995    4253.4         ---      D      D                ---
(D-18-15) 27bbb      55       201898   WESTON & JESSICA LANSKY                                  ---        400           7        0-400          ---           ---          ---          ---        ---          ---     D, I    D                ---
(D-18-15) 27bbb      55       204292   WESTON & JESSICA LANSKY                                  ---         ---          ---        ---          ---           ---          ---          ---        ---          ---      ---    ---              ---
(D-18-15) 27bbd      55       555604   BLANCO, JAVIER,                                       8/15/1996     600           ---        ---          ---           ---         125       8/15/1996      ---          ---      D      D                ---
(D-18-15) 27bbd      55       561858   JAVIER BLANCO                                         1/8/1997      600           8        0-600          ---           ---          ---          ---        ---          ---      D      D      ABANDONED
(D-18-15) 27bbd      55       578265   JAVIER & LAURA BLANCO                                 5/19/2000     700           10        0-32          ---           ---          ---          ---        ---          ---      D      D                ---
(D-18-15) 34abb      55       804872   CORONADO NATIONAL FOREST,                                ---         ---          ---        ---          ---           ---          ---         ---         ---         35        S      ---              ---
(D-18-15) 34acd      55       508426   ANAMAX MINING CO,                                     1/8/1987      605           6          ---          ---           ---          ---          ---        ---          ---    NONE     ---    ABANDONED
(D-18-15) 34adc      55       804868   CORONADO NATIONAL FOREST,                                ---         ---          ---        ---          ---           ---          ---         ---         ---         35        S      ---              ---
(D-18-15) 34adc      55       804870   CORONADO NATIONAL FOREST,                                ---         ---          ---        ---          ---           ---          ---         ---         ---         35        S      ---              ---
(D-18-15) 34adc      55       804871   CORONADO NATIONAL FOREST,                                ---         ---          ---        ---          ---           ---          ---         ---         ---         35        S      ---              ---
(D-18-15) 34add      55       86600    ASARCO INC,                                           1/1/1980      500           6          ---          ---           ---          ---          ---        ---          ---     MIN     ---              ---




                                                                                                                      Page 9 of 22
                                                                        INVENTORY OF WELL RECORDS AND CONSTRUCTION INFORMATION WITHIN TWO (2) MILES

                                                                                      ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                             CASING                                  NON-PUMPING WATER LEVEL
                              ADWR                                                                                                                   ALTITUDE
                               WELL                                                                 DEPTH                             PERFORATED     OF LAND                                             PUMPING
   CADASTRAL        WELL     REGISTRY                                                  DATE        DRILLED      DIAMETER    DEPTH      INTERVAL      SURFACE       DEPTH         DATE       ALTITUDE      RATE     WATER
    LOCATION      REGISTRY   NUMBER                       OWNER                      COMPLETED     (ft, bls)a    (inches)    (feet)      (ft, bls)   (ft, amsl)b   (ft, bls)   MEASURED     (ft, amsl)    (gpm)c   USEd      LOGSe       REMARKS
(D-18-15) 34add      55       804869  CORONADO NATIONAL FOREST,                         ---            ---          ---        ---           ---          ---          ---        ---            ---        35      S          ---          ---
(D-18-15) 34baa   55,GWSI     635385   SANTA RITA RANCH INC,                           1/1/1940      500           6          ---          ---         4641         24.4       1/13/1995     4616.6         5       D, U      ---           ---
(D-18-15) 34baa    GWSI       UW-56                            ---                        ---         ---          ---        ---          ---         4640         355.8      12/8/1987     4284.2         ---     D, S      ---           ---
(D-18-15) 34daa      55       501985   ASARCO INC,                                        ---        350           7         0-20          ---           ---          ---          ---         ---          ---      S        D             ---
(D-18-15) 34daa      55       634283   LAZY Y-I RANCH LLC                              1/20/1981     145           8         0-20          ---           ---         100       1/20/1981       ---         10        S        ---           ---
(D-18-15) 34daa      55       804867   CORONADO NATIONAL FOREST,                          ---         ---          ---        ---          ---           ---          ---          ---         ---         35        S        ---           ---
(D-18-15) 34dab      55       501987   ANAMAX MINING CO,                               1/7/1987      360           7         0-20          ---           ---          ---          ---         ---          ---      S        D      ABANDONED
(D-18-15) 34dad      55       804866   CORONADO NATIONAL FOREST,                          ---         ---          ---        ---          ---           ---          ---          ---         ---         35        S        ---           ---
(D-18-15) 34dba      55       508424   ANAMAX MINING CO,                                  ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE       ---           ---
(D-18-15) 34dba      55       511055   ASARCO INC,                                     6/11/1985      ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE       D      ABANDONED
(D-18-15) 35bcc      55       804865   CORONADO NATIONAL FOREST,                          ---         ---          ---        ---          ---           ---          ---          ---         ---         35        S        ---           ---
(D-18-15) 35bd       55       635399   SANTA RITA RANCH INC,                           1/1/1978      400           6          ---          ---           ---         150        1/1/1978       ---          5        S        ---           ---
(D-18-15) 35bd       55       635400   SANTA RITA RANCH INC,                           1/1/1978      400           6          ---          ---           ---         150        1/1/1978       ---          5        S        ---           ---
(D-18-15) 36         55       804912   ROSEMONT RANCH, LLC                                ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE       ---           ---
(D-18-15) 36         55       804913   ROSEMONT RANCH LLC                                 ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE       ---           ---
(D-18-15) 36         55       804918   ROSEMONT RANCH, LLC                                ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    OME        ---           ---
(D-18-15) 36a        55       525264   ASARCO INC,                                     9/5/1989      1450          ---      0-1450         ---           ---          ---          ---         ---          ---    NONE       D      ABANDONED
(D-18-15) 36a        55       527004   ROSEMONT COPPER COMPANY                         7/17/1990     1382          ---        ---          ---           ---          ---          ---         ---          ---    NONE       D             ---
(D-18-15) 36aab      55       521851   ASARCO INC,                                     9/15/1988      41           ---        ---          ---           ---          ---          ---         ---          ---    NONE       D      ABANDONED
(D-18-15) 36abc      55       804946   ROSEMONT COPPER COMPANY                            ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON        ---           ---
(D-18-15) 36abc      55       804947   ROSEMONT COPPER COMPANY                            ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON        ---           ---
(D-18-15) 36adb      55       536024   ASARCO INC,                                        ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE       ---           ---
(D-18-15) 36cad      55       532893   ASARCO INC,                                     8/31/1991      ---          ---        ---          ---           ---          ---          ---         ---         200     NONE       D      ABANDONED
(D-18-15) 36cbb      55       214173   ROSEMONT COPPER COMPANY                         6/12/2007     1506          5        0-1503         ---           ---         123       6/12/2007       ---          ---    MON        D             ---
(D-18-15) 36dab      55       531129   ASARCO INC,                                        ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE       ---           ---
(D-18-16) 01abc      55       533123   STUMP, REX,                                     9/3/1992      400           4        0-400          ---           ---         200        9/3/1992       ---          1        D        D             ---
(D-18-16) 01abd      55       500821   PINION, J                                       9/18/1981     320           4        0-320          ---           ---         200       9/18/1981       ---          ---      D        D             ---
(D-18-16) 01bad      55       553324   STUMP, REX,                                        ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D        ---           ---
(D-18-16) 01bbb      55       541788   DEAN, MITCH,                                   12/30/1993     300           6        0-300          ---           ---          70       12/30/1993      ---          ---      D        D             ---
(D-18-16) 01bbc      55       536696   CORE, JAMES, A                                  2/22/1993     624           4        0-417          ---           ---          45       2/22/1993       ---         12        D        D             ---
(D-18-16) 01bbc      55       560106   FRANK & DELIA PEEBLES                          11/27/1996     486           8        0-486          ---           ---         136       11/27/1996      ---          7        D        D             ---
(D-18-16) 01bca      55       209815   BARBARA & ETHAN HOLLY                          11/30/2005     850           5        0-850          ---           ---         240       11/30/2005      ---          ---      D        D             ---
(D-18-16) 01bca      55       534108   PERKINS, KATHLEEN, A                            9/29/1992     600           4        0-300          ---           ---         110       9/29/1992       ---          6        D        D             ---
(D-18-16) 01bcb      55       213944   PATTI BOWES                                        ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D        ---           ---
(D-18-16) 01bcb      55       482123   PATTI BOWES                                    12/31/2005     310           7         0-20          ---           ---          ---          ---         ---          ---      D        ---           ---
(D-18-16) 01bcc      55       504537   ROBERT T SUHAY                                 12/20/1982     341           6        0-500          ---           ---          80       12/20/1982      ---         11        D        D      ABANDONED
(D-18-16) 01bcc      55       564188   ROBERT T SUHAY                                     ---        500           6        0-497          ---           ---         345           ---         ---          ---      D        D             ---
(D-18-16) 01bdd      55       502953   ROBERTS, J L                                       ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D        ---           ---
(D-18-16) 01cad      55       209832   MICHAEL J WILKINSON                                ---        475           5        0-475          ---           ---         380           ---         ---          ---      D        D             ---
(D-18-16) 01ccb      55       507533   PENA, MICHAEL,                                 10/12/1984     600           6        0-600          ---           ---         450       10/12/1984      ---          ---      D        D             ---
(D-18-16) 01ccb      55       522095   ROBERT & JEAN WELCH & HAMILTON                 10/29/1988     660           6        0-660          ---           ---          ---          ---         ---          7        D        D             ---
(D-18-16) 01ccc      55       85675    MANUEL & MARTHA VASQUEZ                         9/27/1980     120           6        0-120          ---           ---          60       9/27/1980       ---          ---      D        ---           ---
(D-18-16) 01ccc      55       580115   DARRELL DOWNEY                                  4/7/2000      600           8         0-20          ---           ---         500        4/7/2000       ---          ---      D        D             ---
(D-18-16) 01ccd      55       804933   FREEDOM WELL GROUP                              5/25/2007     1040          5        0-1040         ---           ---         756       5/25/2007       ---         10      D, I, S    D             ---




                                                                                                                Page 10 of 22
                                                                       INVENTORY OF WELL RECORDS AND CONSTRUCTION INFORMATION WITHIN TWO (2) MILES

                                                                                     ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                            CASING                                  NON-PUMPING WATER LEVEL
                               ADWR                                                                                                                 ALTITUDE
                                WELL                                                               DEPTH                             PERFORATED     OF LAND                                             PUMPING
   CADASTRAL         WELL     REGISTRY                                                DATE        DRILLED      DIAMETER    DEPTH      INTERVAL      SURFACE       DEPTH         DATE       ALTITUDE      RATE     WATER
    LOCATION       REGISTRY   NUMBER                           OWNER                COMPLETED     (ft, bls)a    (inches)    (feet)      (ft, bls)   (ft, amsl)b   (ft, bls)   MEASURED     (ft, amsl)    (gpm)c   USEd    LOGSe         REMARKS
(D-18-16) 01dba       55       217841  LEKAWA, RAYMOND                                 ---            ---          ---        ---           ---          ---          ---        ---            ---        ---     D        ---            ---
(D-18-16) 01dcd       55       549065   MANHERZ, JOHN, E                              8/23/1995     800           ---        ---          ---           ---          ---          ---         ---          ---      D      D      ABANDONED
(D-18-16) 01dcd       55       549219   MANHERZ, JOHN, E                              5/23/1995     630           6         0-24          ---           ---          ---          ---         ---          ---      D      D      ABANDONED
(D-18-16) 01dcd       55       553087   MANHERZ, JOHN, E                             12/12/1995     620           8         0-20          ---           ---          ---          ---         ---          ---      D      D                 ---
(D-18-16) 01dcd       55       553877   MANHERZ, JOHN, E                              5/4/1996      500           5         0-20          ---           ---         425        5/4/1996       ---         18        D      D                 ---
(D-18-16) 05          55       804968   ROSEMONT COPPER COMPANY                          ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE     ---               ---
(D-18-16) 05bab       55       592405   ROBERT MAY                                       ---        550           6         0-23          ---           ---         370           ---         ---          5        D      D                 ---
(D-18-16) 07abb       55       511551   ANAMAX MINING CO,                             7/25/1985      ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE     D      CAPPED
(D-18-16) 07abb       55       514397   ANAMAX MINING CO,                             8/24/1986     1080          20       0-1080         ---           ---          ---          ---         ---          ---    NONE     D      ABANDONED
(D-18-16) 07cca       55       508069   ANAMAX MINING CO,                             6/19/1984     1910          ---        ---          ---           ---          ---          ---         ---          ---    NONE     D      ABANDONED
(D-18-16) 07dda       55       804876   CORONADO NATIONAL FOREST,                        ---         ---          ---        ---          ---           ---          ---          ---         ---         35        S      ---               ---
(D-18-16) 11adb       55       616214   AZ STATE LAND DEPT                               ---        150           8        0-150          ---           ---          ---          ---         ---          5        S      ---               ---
(D-18-16) 12aab      55,35     634422   ALLAN BENSON                                  8/10/1979     225           6        0-225          ---           ---         170       8/10/1979       ---         15        D      ---               ---
(D-18-16) 12abb       55       562865   HECTOR ARRIAGA                                   ---        300           4        0-300          ---           ---         100           ---         ---          ---      D      D                 ---
(D-18-16) 12ada       55       211142   RANDALL OBERHOFF                              5/29/2006     300           5        0-300          ---           ---         124       5/29/2006       ---          ---      D      D      CAPPED
(D-18-16) 12ada       55       519879   CHARLES S WOODFORD                            1/5/1988      280           8        0-280          ---           ---         210        1/5/1988       ---         24        D      D                 ---
(D-18-16) 12adc       55       210076   WILLIAM G ARNOLD (TRUSTEE)                       ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---               ---
(D-18-16) 12adc       55       214604   WILLIAM G ARNOLD (TRUSTEE)                    4/25/2007     325           6        0-325          ---           ---         200       4/25/2007       ---          ---      D      D                 ---
(D-18-16) 12bab       55       804934   MCCAIN, CHUCK & JILL                             ---         ---          ---        ---          ---           ---          ---          ---         ---          ---     D, I    ---               ---
(D-18-16) 12bba       55       567704   BOB ADAM                                      7/2/1998      650           ---        ---          ---           ---          ---          ---         ---          ---      D      D                 ---
(D-18-16) 12bbd1   GWSI,35     UW-57    CHUCK MCCAIN                                     ---        116           8          ---          ---         4089         20.7        4/1/1982      4068          ---      D      ---    casing diam. 6 in 55
(D-18-16) 12bbd2    GWSI       UW-58    CHUCK MCCAIN                                     ---         ---          6          ---          ---         4090         30.2       1/28/2005     4059.8         ---      D      ---               ---
(D-18-16) 12bcb       55       516286   BURRIS, W TIM,                                1/8/1987      360           4          ---          ---           ---          30        1/8/1987       ---          ---      D      D                 ---
(D-18-16) 12bdb       55       544866   BOUCHARD, PIERRE, L                           9/9/1994      500           6        0-500          ---           ---         270        9/9/1994       ---          ---      D      D                 ---
(D-18-16) 12bdc       55       596592   ROGER DEAN TANNER                             2/9/2002       ---          5        0-840          ---           ---         485        2/9/2002       ---          ---      D      D                 ---
(D-18-16) 12caa       55       570877   STEPHEN M THOMPSON                           12/16/1998     700           8        0-640          ---           ---         233       12/16/1998      ---          ---      D      D                 ---
(D-18-16) 12cac       55       557302   NELSON, ROBERT, P                             8/17/1996     320           6        0-320          ---           ---         235       8/17/1996       ---          ---     D, S    D                 ---
(D-18-16) 12cad       55       400285   STEVEN & IRISH WASHBURN                          ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---    ABANDONED
(D-18-16) 12cad       55       586402   STEVEN & IRISH WASHBURN                       5/15/2001     505           5        0-505          ---           ---         370       5/15/2001       ---          7        D      D                 ---
(D-18-16) 12cbc       55       568492   PATRICK & CAROL MACK                          6/16/1998     400           5        0-400          ---           ---         150       6/16/1998       ---         20        D      D                 ---
(D-18-16) 12cbd       55       583735   MICHAEL CHUK                                  12/7/2000     720           5        0-720          ---           ---         120       12/7/2000       ---          ---      D      D                 ---
(D-18-16) 12ccb       55       504751   CARREINZA, B                                  2/10/1983     320           4        0-320          ---           ---         100       2/10/1983       ---          ---      D      D                 ---
(D-18-16) 12cda       55       584992   JENNIFER A WHITE                              4/1/2001      765           6        0-765          ---           ---         173        4/1/2001       ---          ---      D      D                 ---
(D-18-16) 12cdb       55       577060   MARC FLYNN                                    10/8/1999     720           5        0-720          ---           ---         540       10/8/1999       ---         12        D      D      ABANDONED
(D-18-16) 12cdb       55       580027   MARC FLYNN                                    3/10/2000     700           5        0-700          ---           ---         360       3/10/2000       ---          5        D      D                 ---
(D-18-16) 12cdb       55       583554   JEFF ALMOND                                   2/14/2001     820           8         0-20          ---           ---          ---          ---         ---          ---      D      D      ABANDONED
(D-18-16) 12cdb       55       585819   JEFF ALMOND                                      ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---               ---
(D-18-16) 12d         55       638004   PUTT, DAVID & JILL,                           7/1/1979      350           8        0-300          ---           ---         275        7/1/1979       ---          5        D      ---               ---
(D-18-16) 12dab       55       544181   MORRIS, RAY,                                 10/19/1994     460           6        0-460          ---           ---         211       10/19/1994      ---          ---      D      D                 ---
(D-18-16) 12dab       55       594343   JACK AND LINDA PENNINGTON                     12/5/2002     240           5        0-220          ---           ---         158       12/5/2002       ---         12        D      D                 ---
(D-18-16) 12dac       55       541459   SHINSKY, GREG,                                4/5/1994      400           8        0-400          ---           ---         260        4/5/1994       ---         18        D      D                 ---
(D-18-16) 12dad       55       544418   WESTERVELT, HELEN, W                         11/22/1994     443           8        0-443          ---           ---         370       11/22/1994      ---         10        D      D                 ---
(D-18-16) 12dba       55       586498   STEVE & KIM CARSON                            9/30/2001     500           6        0-500          ---           ---         345       9/30/2001       ---          ---      D      D                 ---
(D-18-16) 12dbd       55       503332   EAGLEN, L                                     7/29/1982     350           6        0-350          ---           ---         190       7/29/1982       ---          8        D      D                 ---




                                                                                                               Page 11 of 22
                                                                         INVENTORY OF WELL RECORDS AND CONSTRUCTION INFORMATION WITHIN TWO (2) MILES

                                                                                       ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                              CASING                                  NON-PUMPING WATER LEVEL
                                ADWR                                                                                                                  ALTITUDE
                                 WELL                                                                DEPTH                             PERFORATED     OF LAND                                             PUMPING
   CADASTRAL        WELL       REGISTRY                                                  DATE       DRILLED      DIAMETER    DEPTH      INTERVAL      SURFACE       DEPTH          DATE      ALTITUDE      RATE     WATER
    LOCATION      REGISTRY     NUMBER                            OWNER                COMPLETED     (ft, bls)a    (inches)    (feet)      (ft, bls)   (ft, amsl)b   (ft, bls)   MEASURED     (ft, amsl)    (gpm)c   USEd    LOGSe         REMARKS
(D-18-16) 12ddc      55         638529  SCHELL, A G                                    7/19/1979       600            4       0-600           ---          ---        400        7/19/1979        ---        15      D        ---            ---
(D-18-16) 12ddd       55        560423   FRIEDMAN, ALAN, R                              4/4/1997      361           5        0-336          ---           ---         235        4/4/1997       ---         16        D      D                ---
(D-18-16) 13a         55        804848   MALDONADO, JUAN,                               12/8/1977     400           3        0-380          ---           ---         300        12/8/1977      ---         25       D, S    ---              ---
(D-18-16) 13aab       55        216622   HIDDE & MARSHA BROUWER                            ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---              ---
(D-18-16) 13baa       55        513895   HARRIS, ROBERT, W                             10/11/1986     324           8        0-324          ---           ---         275       10/11/1986      ---         11        D      D                ---
(D-18-16) 13baa   55,GWSI,35    650156   BEATTY, BRIAN PATRICK                          6/1/1972      545           6         0-20          ---         4280          200        6/14/1972     4080          7        D      D                ---
(D-18-16) 13bad     55,35       639912   MCDONOUGH, E J                                 5/12/1980     260           6        0-260          ---           ---         110        5/12/1980      ---         10        D      D                ---
(D-18-16) 13bbb       55        521083   WATERS, BUDDY, C                              10/28/1993     600           8        0-320          ---           ---         570       10/28/1993      ---          7        D      D                ---
(D-18-16) 13bdd       55        804907   CAMPBELL, MARK S                                  ---        420           7        0-260          ---           ---         206           ---         ---         15        D      ---              ---
(D-18-16) 13cca       55        557256   KONRATH, EDWIN JR, J                           10/9/1996     208           6         0-23          ---           ---          36        10/9/1996      ---         10        D      D                ---
(D-18-16) 14cab       55        804957   ROSEMONT COPPER COMPANY                           ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON      ---              ---
(D-18-16) 14cab     GWSI        UW-59                             ---                      ---         ---          ---        ---          ---         4275           ---          ---         ---          ---      S      ---              ---
(D-18-16) 14ddd       55        633729   AZ STATE LAND DEPT,                               ---        115           ---        ---          ---           ---          ---          ---         ---          ---     S, D    ---              ---
(D-18-16) 15dba       55        804897   ROSEMONT COPPER COMPANY                       12/31/1930     600           6         0-40          ---           ---          45       12/31/1930      ---          1        S      ---              ---
(D-18-16) 15dbc       55        804956   ROSEMONT COPPER COMPANY                           ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON      ---              ---
(D-18-16) 16          55        511540   ANAMAX MINING CO,                             10/10/1986     580           3          ---          ---           ---          ---          ---         ---          ---    NONE     D      ABANDONED
(D-18-16) 16ccb       55        508073   ANAMAX MINING CO,                             10/11/1986     1965          3          ---          ---           ---          ---          ---         ---          ---    NONE     D      ABANDONED
(D-18-16) 16ccb       55        511541   ANAMAX MINING CO,                                 ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE     ---              ---
(D-18-16) 17dab       55        508074   ANAMAX MINING CO,                                 ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE     ---              ---
(D-18-16) 19bca       55        558405   ROSEMONT COPPER COMPANY                           ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      S      ---              ---
(D-18-16) 19caa       55        804877   CORONADO NATIONAL FOREST,                         ---         ---          ---        ---          ---           ---          ---          ---         ---         35        S      ---              ---
(D-18-16) 19cb        55        642734   CORONADO NATIONAL FOREST,                         ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      S      ---              ---
(D-18-16) 20          55        804967   ROSEMONT COPPER COMPANY                           ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE     ---              ---
(D-18-16) 20aca       55        804878   CORONADO NATIONAL FOREST,                         ---         ---          ---        ---          ---           ---          ---          ---         ---         35        S      ---              ---
(D-18-16) 20dbc       55        804975   ROSEMONT COPPER COMPANY                           ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON      ---              ---
(D-18-16) 20dbc       55        804976   ROSEMONT COPPER COMPANY                           ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON      ---              ---
(D-18-16) 21aac       55        518793   LAZY Y-I RANCH LLC                             8/22/1987     305           4        0-300          ---           ---         110        8/22/1987      ---          ---    NONE     D                ---
(D-18-16) 21aba       55        518792   LAZY Y-I RANCH LLC                             8/31/1987     505           6        0-500          ---           ---         75         8/31/1987      ---          ---    NONE     D                ---
(D-18-16) 21abc       55        205052   ROSEMONT RANCH LLC                                ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---              ---
(D-18-16) 21abc       55        804936   AUGUSTA RESOURCES CORPORATION                     ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      S      ---              ---
(D-18-16) 21acb    55,GWSI      634309   ROSEMONT COPPER COMPANY                       11/24/1971     1000          8         0-10          ---         4546         52.5       12/15/1987    4493.5        10       S, D    ---    21bda in 55
(D-18-16) 21acb       55        804935   AUGUSTA RESOURCES CORPORATION                     ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      S      ---              ---
(D-18-16) 21adb       55        518791   LAZY Y-I RANCH LLC                             8/20/1987     306           8        0-323          ---           ---         110        8/20/1987      ---          ---    NONE     D                ---
(D-18-16) 21bda       55        804886   CORONADO NATIONAL FOREST,                         ---         ---          ---        ---          ---           ---          ---          ---         ---         35        S      ---              ---
(D-18-16) 21ddc     GWSI        UW-60    ANAMAX MINING CO                                  ---         ---          8         0-20          ---         4550         38.2        2/14/2005    4511.8         ---      U      ---              ---
(D-18-16) 22abb       55        504724   ANAMAX MINING CO,                             10/20/1986     255           8         0-19          ---           ---          ---          ---         ---          ---      S      D      ABANDONED
(D-18-16) 22acd     GWSI        UW-61    ANAMAX MINING CO                                  ---         ---          8          ---          ---         4480           ---          ---         ---          ---      U      ---              ---
(D-18-16) 22bab       55        804879   CORONADO NATIONAL FOREST,                         ---         ---          ---        ---          ---           ---          ---          ---         ---         35        S      ---              ---
(D-18-16) 22bac       55        504725   ROSEMONT COPPER COMPANY                        2/25/1983     220           8        0-220          ---           ---          66        2/25/1983      ---          ---      S      D                ---
(D-18-16) 22daa       55        804880   CORONADO NATIONAL FOREST,                         ---         ---          ---        ---          ---           ---          ---          ---         ---         35        S      ---              ---
(D-18-16) 22dac       55        508070   ANAMAX MINING CO,                                 ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE     ---              ---
(D-18-16) 22dac       55        508071   ANAMAX MINING CO,                              7/21/1984     595           5          ---          ---           ---          ---          ---         ---          ---    NONE     D      ABANDONED
(D-18-16) 22dac       55        508072   ANAMAX MINING CO,                              7/27/1984     142           10         ---          ---           ---          ---          ---         ---          ---    NONE     D      ABANDONED
(D-18-16) 22dad       55        525266   ASARCO INC,                                    9/8/1989      1399          4        0-1398         ---           ---          ---          ---         ---          ---    NONE     D      ABANDONED




                                                                                                                 Page 12 of 22
                                                                      INVENTORY OF WELL RECORDS AND CONSTRUCTION INFORMATION WITHIN TWO (2) MILES

                                                                                    ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                           CASING                                  NON-PUMPING WATER LEVEL
                               ADWR                                                                                                                ALTITUDE
                                WELL                                                              DEPTH                             PERFORATED     OF LAND                                             PUMPING
   CADASTRAL         WELL     REGISTRY                                               DATE        DRILLED      DIAMETER    DEPTH      INTERVAL      SURFACE       DEPTH          DATE      ALTITUDE      RATE     WATER
    LOCATION       REGISTRY   NUMBER                          OWNER                COMPLETED     (ft, bls)a    (inches)    (feet)      (ft, bls)   (ft, amsl)b   (ft, bls)   MEASURED     (ft, amsl)    (gpm)c   USEd    LOGSe       REMARKS
(D-18-16) 22dbc      GWSI      UW-62   ANAMAX MINING CO                               ---            ---           8        0-40           ---        4508         80.5       2/14/2005     4427.5        ---     U        ---          ---
(D-18-16) 23dba       55       804958   ROSEMONT COPPER COMPANY                         ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON      ---           ---
(D-18-16) 23dcc       55       539633   ROSEMONT COPPER COMPANY                      7/21/1993     400           6        0-400          ---           ---          ---          ---         ---          ---      S      D             ---
(D-18-16) 23dcc       55       633731   ROSEMONT COPPER COMPANY                      8/5/1993      600           4        0-580          ---           ---          90        8/5/1993       ---          1       S, D    ---           ---
(D-18-16) 24adb     GWSI       UW-63    LONNIE DAVIDSON                              1/1/1971       70           6          ---          ---         4560         31.77      12/14/1987    4528.23        ---      S      ---           ---
(D-18-16) 24bcc       55       804900   DAVISON, MAE OLDEN,                         12/31/1974      80           6         0-80          ---           ---          35       12/31/1974      ---         25        D      ---           ---
(D-18-16) 24bcd       55       804898   PHELPS DODGE CORP,                          12/31/1930      20           10         ---          ---           ---          6        12/31/1930      ---          1        S      ---           ---
(D-18-16) 24bdc1    GWSI       806381   PHELPS DODGE                                    ---         22           48        0-15          ---         4390          5.8       12/14/1987    4384.2         ---      S      ---           ---
(D-18-16) 24bdc2    GWSI       806383   LONNIE DAVISON                                  ---         98           8         0-15          ---         4395         32.02       3/31/1982    4362.98        ---      D      ---           ---
(D-18-16) 24dcc       55       804899   DAVISON, MAE OLDEN,                         12/31/1975      70           4         0-50          ---           ---          30       12/31/1975      ---          1        S      ---           ---
(D-18-16) 26add       55       532814   ROSEMONT COPPER COMPANY                      9/13/1991     350           4        0-300          ---           ---          17        9/13/1991      ---          1        S      D             ---
(D-18-16) 26cb        55       503047   URDEA, O W                                      ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---           ---
(D-18-16) 27adb       55       508621   ANAMAX MINING CO,                            7/17/1984     730           6          ---          ---           ---          ---          ---         ---          ---    NONE     D      ABANDONED
(D-18-16) 27adb       55       804884   CORONADO NATIONAL FOREST,                       ---         ---          ---        ---          ---           ---          ---          ---         ---         35        S      ---           ---
(D-18-16) 27cdb1    GWSI       UW-64    ANAMAX MINING CO                                ---         ---          8          ---          ---         4720           ---          ---         ---          ---      U      ---           ---
(D-18-16) 27cdb2    GWSI       UW-65    ANAMAX MINING CO                                ---         ---          8         0-20          ---         4720           ---          ---         ---          ---      U      ---           ---
(D-18-16) 27cdb3    GWSI       UW-66    ANAMAX MINING CO                                ---         ---          3          ---          ---         4720         101.4       3/31/1982    4618.6         ---      U      ---           ---
(D-18-16) 27ddb       55       508427   ANAMAX MINING CO,                            7/13/1984     1000          8          ---          ---           ---          ---          ---         ---          ---    NONE     D      ABANDONED
(D-18-16) 27ddc       55       804959   ROSEMONT COPPER COMPANY                         ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON      ---           ---
(D-18-16) 27ddd     GWSI       UW-67                           ---                      ---         ---          ---        ---          ---         4605           ---          ---         ---          ---      S      ---           ---
(D-18-16) 28          55       804964   ROSEMONT COPPER COMPANY                         ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE     ---           ---
(D-18-16) 28aba       55       804977   ROSEMONT COPPER COMPANY                         ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON      ---           ---
(D-18-16) 28aba       55       804978   ROSEMONT COPPER COMPANY                         ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON      ---           ---
(D-18-16) 28aba       55       804979   ROSEMONT COPPER COMPANY                         ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON      ---           ---
(D-18-16) 29          55       804963   ROSEMONT COPPER COMPANY                         ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE     ---           ---
(D-18-16) 29adc       55       207382   ROSEMONT RANCH LLC                              ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---           ---
(D-18-16) 29bbc       55       804883   CORONADO NATIONAL FOREST,                       ---         ---          ---        ---          ---           ---          ---          ---         ---         35        S      ---           ---
(D-18-16) 29bbd       55       608629   ROSEMONT COPPER COMPANY                      1/1/1976      3200          ---        ---          ---           ---          ---          ---         ---          ---      S      ---           ---
(D-18-16) 29bda       55       804970   ROSEMONT COPPER COMPANY                         ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON      ---           ---
(D-18-16) 29ccb       55       804950   ROSEMONT COPPER COMPANY                         ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON      ---           ---
(D-18-16) 29ccb       55       804951   ROSEMONT COPPER COMPANY                      4/30/2008     394           5        0-390          ---           ---          23        4/30/2008      ---          ---    MON      D             ---
(D-18-16) 29ccb       55       804972   ROSEMONT COPPER COMPANY                         ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON      ---           ---
(D-18-16) 29cda       55       608630   ROSEMONT COPPER COMPANY                      7/11/1963     535           8        0-204          ---           ---          ---          ---         ---         64        S      ---           ---
(D-18-16) 30          55       804915   ROSEMONT RANCH, LLC                             ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    OME      ---           ---
(D-18-16) 30          55       804920   ROSEMONT RANCH, LLC                             ---        2079          ---        ---          ---           ---          ---          ---         ---          ---    OME      ---           ---
(D-18-16) 30          55       804925   ROSEMONT, LLC                                   ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE     ---           ---
(D-18-16) 30          55       804962   ROSEMONT COPPER COMPANY                         ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE     ---           ---
(D-18-16) 30bab       55       804952   ROSEMONT COPPER COMPANY                         ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON      ---           ---
(D-18-16) 30bab       55       804953   ROSEMONT COPPER COMPANY                         ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON      ---           ---
(D-18-16) 30bba       55       214203   ROSEMONT COPPER COMPANY                         ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON      ---           ---
(D-18-16) 30bcc       55       214211   ROSEMONT COPPER COMPANY                         ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON      ---           ---
(D-18-16) 30bcc       55       804943   ROSEMONT COPPER COMPANY                         ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON      ---           ---
(D-18-16) 30bda       55       804971   ROSEMONT COPPER                                 ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON      ---           ---
(D-18-16) 30cac       55       804881   CORONADO NATIONAL FOREST,                       ---         ---          ---        ---          ---           ---          ---          ---         ---         35        S      ---           ---




                                                                                                              Page 13 of 22
                                                                           INVENTORY OF WELL RECORDS AND CONSTRUCTION INFORMATION WITHIN TWO (2) MILES

                                                                                         ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                                CASING                                  NON-PUMPING WATER LEVEL
                               ADWR                                                                                                                     ALTITUDE
                                WELL                                                                   DEPTH                             PERFORATED     OF LAND                                             PUMPING
   CADASTRAL         WELL     REGISTRY                                                    DATE        DRILLED      DIAMETER    DEPTH      INTERVAL      SURFACE       DEPTH         DATE       ALTITUDE      RATE     WATER
    LOCATION       REGISTRY   NUMBER                      OWNER                         COMPLETED     (ft, bls)a    (inches)    (feet)      (ft, bls)   (ft, amsl)b   (ft, bls)   MEASURED     (ft, amsl)    (gpm)c   USEd      LOGSe         REMARKS
(D-18-16) 30cad       55       804941  ROSEMONT COPPER COMPANY                             ---            ---          ---        ---           ---          ---          ---        ---            ---        ---    MON         ---            ---
(D-18-16) 30cad       55       804942   ROSEMONT COPPER COMPANY                              ---         ---          ---        ---          ---           ---          ---          ---         ---          ---     MON       ---              ---
(D-18-16) 30cbb       55       804932   AUGUSTA RESOURCE (ARIZONA) CORP.                  6/12/2007     1020          4        0-1020         ---           ---         124       6/12/2007       ---          ---     MON       D                ---
(D-18-16) 30cca       55       507742   ANAMAX MINING CO,                                 6/29/1984     680           20         ---          ---           ---          ---          ---         ---          ---    NONE       D      ABANDONED
(D-18-16) 30cca       55       511195   ANAMAX MINING CO,                                 8/7/1985       ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE       D      ABANDONED
(D-18-16) 30cdc       55       214214   ROSEMONT COPPER COMPANY                           6/12/2007     1503          4        0-1503         ---           ---          ---          ---         ---          ---     MON       D                ---
(D-18-16) 30dda       55       804882   CORONADO NATIONAL FOREST,                            ---         ---          ---        ---          ---           ---          ---          ---         ---         35        S        ---              ---
(D-18-16) 31          55       804966   ROSEMONT COPPER COMPANY                              ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE       ---              ---
(D-18-16) 31aad       55       214212   ROSEMONT COPPER COMPANY                           6/12/2007     1360          4        0-1360         ---           ---          ---          ---         ---          ---     MON       D                ---
(D-18-16) 31ab        55       642735   CORONADO NATIONAL FOREST,                            ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      S        ---              ---
(D-18-16) 31bbb       55       608631   ROSEMONT COPPER COMPANY                           4/7/1976      2541          2        0-1300         ---           ---          ---          ---         ---          ---      S        ---              ---
(D-18-16) 31bbd       55       535046   ROSEMONT COPPER COMPANY                           9/2/1992       ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE       D      ABANDONED
(D-18-16) 31bca       55       530681   ASARCO INC,                                       9/16/1991      ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE       D                ---
(D-18-16) 31bca       55       535045   ASARCO INC,                                       7/10/1992      ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE       D      ABANDONED
(D-18-16) 31cbb       55       532115   ROSEMONT COPPER COMPANY                           8/21/1991     700           4        0-700          ---           ---         120       8/21/1991       ---          1        S        D                ---
(D-18-16) 31ccc1    GWSI       UW-68    ANAMAX MINING CO                                     ---         ---          6          ---          ---         5416         243.4      3/31/1982     5172.6         ---      U        ---              ---
(D-18-16) 31ccc2    GWSI       UW-69    ANAMAX MINING CO                                     ---         ---          6          ---          ---         5416         236.7      3/31/1982     5179.3         ---      U        ---              ---
(D-18-16) 32          55       804965   ROSEMONT COPPER COMPANY                              ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE       ---              ---
(D-18-16) 32baa       55       214213   ROSEMONT COPPER COMPANY                              ---         ---          ---        ---          ---           ---          ---          ---         ---          ---     MON       ---              ---
(D-18-16) 32bdc       55       564306   ROSEMONT COPPER COMPANY                           1/17/1998     560           5        0-560          ---           ---          62       1/17/1998       ---          ---      D        D                ---
(D-18-16) 32bdc       55       634308   ROSEMONT COPPER COMPANY                           1/1/1966      500           8        0-303          ---           ---          94        1/1/1966       ---         10       S, D      ---              ---
(D-18-16) 32caa       55       804954   ROSEMONT COPPER COMPANY                              ---         ---          ---        ---          ---           ---          ---          ---         ---          ---     MON       ---              ---
(D-18-16) 32caa       55       804955   ROSEMONT COPPER COMPANY                              ---         ---          ---        ---          ---           ---          ---          ---         ---          ---     MON       ---              ---
(D-18-16) 32cab     GWSI       804885   USFS                                                 ---         ---          ---        ---          ---         4875           ---          ---         ---          ---      S        ---              ---
(D-18-16) 32cac       55       804885   CORONADO NATIONAL FOREST,                            ---         ---          ---        ---          ---           ---          ---          ---         ---         35        S        ---              ---
(D-18-16) 32cad       55       214204   ROSEMONT COPPER COMPANY                              ---         ---          ---        ---          ---           ---          ---          ---         ---          ---     MON       ---              ---
(D-18-16) 32ccb       55       608627   ROSEMONT COPPER COMPANY                           1/31/1978     1300          9        0-1287         ---           ---         100       1/31/1978       ---          ---    S, IND     ---              ---
(D-18-16) 32ccb    55,GWSI     633728   GAYLER, A                                            ---        500           6        0-500          ---         4921         37.6       2/14/2005     4883.4         5      S, D, U    ---    32cbb in 55
(D-18-16) 32ccc     GWSI       UW-70    ANAMAX MINING CO                                     ---         ---          6          ---          ---         4959         51.96      3/31/1982     4907.04        ---      U        ---              ---
(D-18-16) 32dbb       55       804889   ROSEMONT COPPER COMPANY                           2/16/1977     1060          4        0-1048         ---           ---         170       2/16/1977       ---          ---      ---      ---              ---
(D-18-16) 33bbc       55       804980   ROSEMONT COPPER COMPANY                              ---         ---          ---        ---          ---           ---          ---          ---         ---          ---     MON       ---              ---
(D-18-16) 33bbc       55       804981   ROSEMONT COPPER COMPANY                              ---         ---          ---        ---          ---           ---          ---          ---         ---          ---     MON       ---              ---
(D-18-16) 33cac       55       804888   ROSEMONT COPPER COMPANY                          10/15/1970     1208          6        0-337          ---           ---         182       10/15/1970      ---          ---      ---      ---              ---
(D-18-16) 33daa       55       511543   ANAMAX MINING CO,                                 8/9/1985       ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE       D      CAPPED
(D-18-16) 33daa       55       514385   ANAMAX MINING CO,                                 8/13/1986     1430          20       0-1430         ---           ---          ---          ---         ---          ---    NONE       D      ABANDONED
(D-18-16) 34bda     GWSI       UW-71                           ---                           ---         ---          6          ---          ---         4760           ---          ---         ---          ---      U        ---              ---
(D-18-16) 35aab       55       512837   FRENCH, LARRY, S                                 11/30/1985     240           8        0-240          ---           ---         120       11/30/1985      ---         15        D        D                ---
(D-18-17) 05aab       55       639375   ADAMS, J W                                        4/1/1972      285           4        0-285          ---           ---          70        4/1/1972       ---         20        D        ---              ---
(D-18-17) 05aad       55       518784   HOFFMAN, PHILIP,                                  8/17/1987     385           4        0-385          ---           ---         200       8/17/1987       ---          ---      D        D                ---
(D-18-17) 05add       55       500822   HOFFMAN, P D                                      9/12/1981     440           4        0-400          ---           ---         300       9/12/1981       ---          ---      D        D                ---
(D-18-17) 05bab       55       804940   PETERSON, NATHAN                                     ---         ---          ---        ---          ---           ---          ---          ---         ---          ---     D, S      ---              ---
(D-18-17) 05bbb       55       526444   CRAIG P DREHER                                    1/23/1990     300           5         0-20          ---           ---          4        1/23/1990       ---          ---      D        D                ---
(D-18-17) 05bbc      35,55     603097   STUMP, F                                          6/10/1979     368           5         0-14          ---           ---         300       6/10/1979       ---          ---      D        D                ---
(D-18-17) 05bbd       55       632965   PUGH, BERT A JR.,                                 1/1/1971      318           4        0-300          ---           ---         170        1/1/1971       ---          1        D        ---              ---




                                                                                                                   Page 14 of 22
                                                                         INVENTORY OF WELL RECORDS AND CONSTRUCTION INFORMATION WITHIN TWO (2) MILES

                                                                                       ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                              CASING                                  NON-PUMPING WATER LEVEL
                                ADWR                                                                                                                  ALTITUDE
                                 WELL                                                                DEPTH                             PERFORATED     OF LAND                                             PUMPING
   CADASTRAL        WELL       REGISTRY                                                 DATE        DRILLED      DIAMETER    DEPTH      INTERVAL      SURFACE       DEPTH         DATE       ALTITUDE      RATE     WATER
    LOCATION      REGISTRY     NUMBER                           OWNER                 COMPLETED     (ft, bls)a    (inches)    (feet)      (ft, bls)   (ft, amsl)b   (ft, bls)   MEASURED     (ft, amsl)    (gpm)c   USEd      LOGSe       REMARKS
(D-18-17) 05bcb      55         205970  SHIRLEY BREAZEALE                                ---            ---          ---        ---           ---          ---          ---        ---            ---        ---     D          ---          ---
(D-18-17) 05bcb       55        804919   BREAZEALE, SHIRLEY                                ---        900           5        0-900          ---           ---         374          ---          ---          ---      D        D               ---
(D-18-17) 05bda       55        208364   STEVEN E NASON                                    ---         ---          ---        ---          ---           ---          ---          ---         ---          ---     D, S      ---             ---
(D-18-17) 05bda       55        804928   NASON, STEVEN E.                               7/13/2006     400           ---      0-400          ---           ---         188       7/13/2006       ---          ---      D        D               ---
(D-18-17) 05bdb       35        44541    ROBERT C FICKETT                               12/1/1971     318           5        0-274          ---           ---          70       12/1/1971       ---          ---      D        D               ---
(D-18-17) 05bdc       55        598527   STEVEN E NASON                                    ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D        ---             ---
(D-18-17) 05bdc       35        44216    WILLIAM J COOK                                 1/1/1977      300           4        0-300          ---           ---         260        1/1/1977       ---          ---      D        D               ---
(D-18-17) 05bdd       55        85718    STEWART TITLE T.1460                              ---         ---          ---        ---          ---           ---          ---          ---         ---          ---     D, S      ---             ---
(D-18-17) 05bdd       55        632966   STEVE E NASON                                  2/1/1977      300           4          ---          ---           ---          70        2/1/1977       ---          ---      D        ---             ---
(D-18-17) 05caa       55        804929   GARY NORRIS / DAVID MAHER                      7/18/2006     1005          5        0-1005         ---           ---         538       7/18/2006       ---         12        D        D               ---
(D-18-17) 05cab       55        518013   HARNESS, J B                                   11/9/1987     340           4          ---          ---           ---          90       11/9/1987       ---          ---      D        D               ---
(D-18-17) 05cab     35,55       623306   HARNESS, J B                                   1/23/1980     311           4        0-311          ---           ---         118       1/23/1980       ---          ---      D        D               ---
(D-18-17) 05cab     35,55       623307   HARNESS, J B                                  12/16/1971     218           5        0-218          ---           ---         78        12/16/1971      ---          ---      D        D               ---
(D-18-17) 05cbd       55        208340   PIME MAYFAIR INC PSP                              ---         ---          ---        ---          ---           ---          ---          ---         ---          ---     D, S      ---             ---
(D-18-17) 05cdc       55        206416   JOSEPH S & PHYLLIS L PETO                         ---        800           5        0-800          ---           ---         160           ---         ---          ---      D        D               ---
(D-18-17) 06          55        804892   ZEAGLER, R.V. JR.,                             2/1/1980      240           6        0-200          ---           ---          40        2/1/1980       ---          5        D        ---             ---
(D-18-17) 06          55        804895   FEARING/BAKER, JOHN/SUSAN                         ---        275           6          ---          ---           ---          ---          ---         ---          ---      D        ---             ---
(D-18-17) 06aab       55        504708   MICHOD, R                                     12/19/1982     404           6        0-404          ---           ---         105       12/19/1982      ---          5        D        D               ---
(D-18-17) 06aba    GWSI,35      30648    GEORGE BENEDICT                               11/29/1975     250           6         0-20          ---         4240          150       11/29/1975      ---          ---      D        D               ---
(D-18-17) 06abc     35,55       602225   PREFLING, R L                                  9/7/1978      150           6         0-10          ---           ---          40        9/7/1978       ---          3        D        D      CAPPED
(D-18-17) 06abd       55        804891   ZEAGLER, R.V. JR.,                             12/1/1974     250           6        0-200          ---           ---         150       12/1/1974       ---          5        D        ---             ---
(D-18-17) 06acc       55        516181   GARY STEVEN & LILLIAN HANNER                   1/6/1987      600           6        0-600          ---           ---         100        1/6/1987       ---         10        D        D               ---
(D-18-17) 06bbb       55        213314   TRES FUERZAS LLC                               9/13/2006     500           5        0-500          ---           ---         106       9/13/2006       ---         16        D        D               ---
(D-18-17) 06bbb       55        526247   NICHOLAS BESSIE                               11/21/1989     168           5         0-20          ---           ---          67       11/21/1989      ---          3        D        D               ---
(D-18-17) 06bbb       55        804903   BESSIE, NICHOLAS                              12/31/1979      51           ---        ---          ---           ---          28       12/31/1979      ---          0        D        ---             ---
(D-18-17) 06bdb       55        639768   NEFF, J A                                      6/10/1975     205           6         0-75          ---           ---          75       6/10/1975       ---          2        D        ---             ---
(D-18-17) 06bdd       55        804896   HANNER, GARY STEVEN & LILLIAN                     ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D        ---             ---
(D-18-17) 06ca        55        801214   MC CLUE, G                                     10/1/1934      10           ---        ---          ---           ---          ---          ---         ---          ---      ---      ---             ---
(D-18-17) 06cdd       55        84990    PORTNOY                                           ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D        ---             ---
(D-18-17) 06dbb       35        39659    JOHN D REGELMAN                                7/18/1977      80           ---        0-5          ---           ---          70       7/18/1977       ---          ---      D        D               ---
(D-18-17) 06dda       55        504438   MICHOD, R                                     12/10/1982     805           8         0-17          ---           ---          ---          ---         ---          ---      D        D               ---
(D-18-17) 06ddd       55        634675   MICHOD, R E                                    9/24/1979     175           4        0-175         ---            ---          95       9/24/1979       ---          7        D        ---             ---
                                                                                                                    6         0-20         ---
(D-18-17) 06ddd       35        82086    RICK MICHOD                                    9/22/1979     200                                                 ---          43       9/24/1979       ---          ---      D        D               ---
                                                                                                                    4        0-200       180-200
(D-18-17) 07bdd       55        555565   TENPENNY, DAVID,                               4/26/1996     330           8        0-330         ---            ---         265       4/26/1996       ---          ---      D        D               ---
(D-18-17) 07cab       55        573276   STEPHEN ROODHUYZEN                             8/3/1999      420           8        0-400          ---           ---         135        8/3/1999       ---          ---      D        D               ---
(D-18-17) 07cad       55        599181   JOHN MANHERZ                                   7/18/2003     300           6        0-300          ---           ---         310       7/18/2003       ---         10        D        D               ---
(D-18-17) 07cba       55        585901   RUSSELL E LOBAUGH                                 ---        325            5       0-310         ---            ---         111           ---         ---         10        D        D               ---
                                                                                                                     6        0-20         ---
(D-18-17) 07cbb   55,GWSI,35    630559   GREGORY L JONES                                8/26/1978     350                                               4340          107       9/15/1978       ---          ---    D, S, I    D               ---
                                                                                                                     4       0-350       310-350
(D-18-17) 07cbc       55        522494   DOWNEY, LEXTON,                                   ---         ---          ---        ---         ---            ---          ---          ---         ---          ---      D        ---             ---
(D-18-17) 07ccc       55        211822   KENNETH E PAUL JR                              8/11/2006     810           6        0-810          ---           ---         760       8/11/2006       ---          ---      D        D               ---
(D-18-17) 07ccc       55        599621   KENNETH & DEBRA PAUL JR                           ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D        ---             ---
(D-18-17) 07cdd       55        550306   SKINNER, SHANE, J                                 ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D        ---             ---
(D-18-17) 07cdd       55        550307   SKINNER, SHANE, J                              9/16/1995     527           4        0-526          ---           ---         320       9/16/1995       ---          ---      D        D               ---
(D-18-17) 07cdd       55        562602   BRODERICK, PAUL,                               6/30/1997     700           8        0-690          ---           ---         520       6/30/1997       ---          ---      D        D               ---




                                                                                                                 Page 15 of 22
                                                                       INVENTORY OF WELL RECORDS AND CONSTRUCTION INFORMATION WITHIN TWO (2) MILES

                                                                                     ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                            CASING                                  NON-PUMPING WATER LEVEL
                              ADWR                                                                                                                  ALTITUDE
                               WELL                                                                DEPTH                             PERFORATED     OF LAND                                             PUMPING
   CADASTRAL        WELL     REGISTRY                                                 DATE        DRILLED      DIAMETER    DEPTH      INTERVAL      SURFACE       DEPTH         DATE       ALTITUDE      RATE     WATER
    LOCATION      REGISTRY   NUMBER                            OWNER                COMPLETED     (ft, bls)a    (inches)    (feet)      (ft, bls)   (ft, amsl)b   (ft, bls)   MEASURED     (ft, amsl)    (gpm)c   USEd     LOGSe       REMARKS
(D-18-17) 07ddb     GWSI      UW-72                              ---                   ---            ---           3         ---           ---        4570           ---        ---            ---        ---     U         ---          ---
(D-18-17) 08aba      55       576744    JAMES SEVIER                                  9/17/1999     800           5        0-800          ---           ---         665       9/17/1999       ---          ---      D       D             ---
(D-18-17) 08aba      55       578940    JAMES W SEVIER                                   ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D       ---           ---
(D-18-17) 08bb       55       650911    MONTGOMERY, C E                               1/1/1958      550           6          ---          ---           ---         100        1/1/1958       ---         30       D, I     ---           ---
(D-18-17) 17caa      55       572678    GARY HUFFINE                                     ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D       ---           ---
(D-18-17) 17cdd      55       635918    HUOT, R J                                     10/9/1978     300           4        0-300          ---           ---          80       10/9/1978       ---          2        D       ---           ---
(D-18-17) 17cdd      55       804758    HOUT, ROBERT & ROSE,                          1/1/1924       20           ---        ---          ---           ---          5         1/1/1924       ---          5        D       ---           ---
(D-18-17) 17cdd      55       804763    CHAP, ROBERT,                                 9/1/1978      170           4        0-170          ---           ---          60        9/1/1978       ---         13       D, S     ---           ---
(D-18-17) 17dda      55       510114    KENNY D. DALTON                               1/25/1985     140           7        0-140          ---           ---         87        1/25/1985       ---          2        D       D             ---
(D-18-17) 17dda      55       521042    BURKHART, CHARLES, L                             ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D       ---           ---
(D-18-17) 17ddd      55       510167    HILLMAN, RICHARD, W                           1/28/1985     240           7        0-240          ---           ---         175       1/28/1985       ---          6        D       D             ---
(D-18-17) 18cca      55       648601    BOSTICK, J                                    1/1/1918      750           ---        ---          ---           ---         450        1/1/1918       ---         25        D       ---           ---
(D-18-17) 18ddd      55       535628    BRANGER, JOHN & T.,                              ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D       ---           ---
(D-18-17) 19dad      55       518185    VELASQUEZ, R J                               10/15/1987     320           6        0-320          ---           ---          30       10/15/1987      ---          ---     D, S     D             ---
(D-18-17) 31acd      55       532704    TAFOYA, ONOFRE,                              10/15/1991     550           8        0-550          ---           ---         312       10/15/1991      ---          ---     D, I     D             ---
(D-18-17) 32dac      55       616220    AZ STATE LAND DEPT                            1/1/1919      226           6        0-210          ---           ---         101        1/1/1919       ---         10        S       ---           ---
(D-18-17) 32dba   55,GWSI     634321    BLM-PHOENIX DISTRICT                             ---        226           6          ---          ---         4520         110.9      11/5/2002     4409.1        15        S       ---           ---
(D-18-17) 32ddb      35       UW-73                             ---                      ---         ---          6          ---          ---           ---          93           ---         ---          ---      S       ---           ---
(D-19-15) 01aaa    GWSI       UW-74     ANAMAX MINING CO                                 ---         ---          6          ---          ---         5360         178.4      3/31/1982     5181.6         ---      U       ---           ---
(D-19-15) 01bab      55       804948    ROSEMONT COPPER COMPANY                          ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON       ---           ---
(D-19-15) 01bab      55       804949    ROSEMONT COPPER COMPANY                          ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON       ---           ---
(D-19-15) 01bbb      55       558406    ROSEMONT COPPER COMPANY                          ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      S       ---           ---
(D-19-15) 10bbb      55       559874    ROBINSON CATTLE,                             12/19/1996     175           8        0-175          ---           ---          30       12/19/1996      ---          7       S, D     D             ---
(D-19-15) 11cb       55       641584    CORONADO NATIONAL FOREST,                        ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      S       ---           ---
(D-19-15) 14da       55       641586    CORONADO NATIONAL FOREST,                        ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      S       ---           ---
(D-19-15) 23ac       55       641585    CORONADO NATIONAL FOREST,                     1/1/1966       ---          ---        ---          ---           ---          ---          ---         ---          ---      S       ---           ---
(D-19-15) 24         55       532758    ARIMETCO INC,                                    ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE      ---           ---
(D-19-15) 24ccc      55       517280    ROBERT L SEADORF                              7/7/1987      250           8         0-21          ---           ---          39        7/7/1987       ---          ---      D       D             ---
(D-19-15) 24dcc      55       641643    CORONADO NATIONAL FOREST,                        ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      S       ---           ---
(D-19-15) 25         55       529888    SUNSHINE MINING CO,                           1/1/1991       ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE      D      ABANDONED
(D-19-15) 25         55       532759    ARIMETCO INC,                                    ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE      ---           ---
(D-19-15) 36         55       804916    ROSEMONT RANCH, LLC                              ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    OME       ---           ---
(D-19-15) 36         55       804922    ROSEMONT RANCH, LLC                              ---        2198          ---        ---          ---           ---          ---         ---          ---          ---    OME       ---           ---
(D-19-15) 36         55       804926    ROSEMONT RANCH, LLC                              ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE      ---           ---
(D-19-15) 36bb       55       647493    STRATMAN, S                                   7/10/1931      60           ---        ---          ---           ---          10       7/10/1931       ---         20        S       ---           ---
(D-19-15) 36bbb    GWSI       UW-75                             ---                      ---         ---          ---      ?-240          ---         5320          9.1        3/1/2005     5310.9         ---      S       ---           ---
(D-19-15) 36cac      35       XX060     PAUL SULGER                                   1/1/1930       30           ---        ---          ---           ---          ---          ---         ---          ---     MIN      D             ---
(D-19-15) 36daa      35       XX060     PAUL SULGER                                   1/1/1920       40           ---        ---          ---           ---          ---          ---         ---          ---      D       D             ---
(D-19-15) 36dab    GWSI       UW-76                             ---                      ---         ---          ---        ---          ---         5199          6.8        3/1/2005     5192.2         ---      U       ---           ---
(D-19-15) 36dad      55       600033    SULGER, P                                        ---         30           ---        ---          ---           ---          22           ---         ---         100     D, MIN    ---           ---
(D-19-15) 36dca     55,35     600032    SULGER, P                                     1/1/1910      350           60         ---          ---           ---         340           ---         ---         100     D, MIN    D             ---
(D-19-16) 02ccc      35       UW-77                             ---                      ---         ---          12         ---          ---           ---         196           ---         ---          ---      S       ---           ---
(D-19-16) 02ccd      55       616249    AZ STATE LAND DEPT                            1/2/1900      262           6          ---          ---           ---         200        1/2/1900       ---          7        S       ---           ---
(D-19-16) 02ccd   55,GWSI     634318    BLM-PHOENIX DISTRICT                             ---        262           6          ---          ---         4890         199.9      2/14/2005     4690.1        15        S       ---           ---




                                                                                                               Page 16 of 22
                                                                          INVENTORY OF WELL RECORDS AND CONSTRUCTION INFORMATION WITHIN TWO (2) MILES

                                                                                        ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                               CASING                                  NON-PUMPING WATER LEVEL
                                ADWR                                                                                                                   ALTITUDE
                                 WELL                                                                 DEPTH                             PERFORATED     OF LAND                                             PUMPING
   CADASTRAL        WELL       REGISTRY                                                   DATE       DRILLED      DIAMETER    DEPTH      INTERVAL      SURFACE       DEPTH         DATE       ALTITUDE      RATE     WATER
    LOCATION      REGISTRY     NUMBER                             OWNER                COMPLETED     (ft, bls)a    (inches)    (feet)      (ft, bls)   (ft, amsl)b   (ft, bls)   MEASURED     (ft, amsl)    (gpm)c   USEd      LOGSe         REMARKS
(D-19-16) 03acd      55         646558  BARCHAS, CECILE, M                               1/1/1960       318           ---        ---           ---          ---          ---        ---            ---        ---     S          ---            ---
(D-19-16) 03da        55        641583   CORONADO NATIONAL FOREST,                          ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      S        ---              ---
(D-19-16) 04cac       55        804873   CORONADO NATIONAL FOREST,                          ---         ---          ---        ---          ---           ---          ---          ---         ---         35        S        ---              ---
(D-19-16) 04cdb    55,GWSI      501988   ROSEMONT COPPER COMPANY                         2/25/1982     825           4        0-810       700-810        5320          617       3/29/1982      4703          ---      S        ---              ---
(D-19-16) 04dba       55        504726   ANAMAX MINING CO,                               3/7/1983      951           8        0-951          ---           ---         498        3/7/1983       ---          ---      S        D      ABANDONED
(D-19-16) 04dbc       55        508432   ANAMAX MINING CO,                               7/3/1984       ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE       D      ABANDONED
(D-19-16) 04dbc       55        511542   ANAMAX MINING CO,                              11/26/1986      39           8          ---          ---           ---          ---          ---         ---          ---    NONE       D      ABANDONED
(D-19-16) 04dbd     GWSI        UW-78    VICTORIO LAND & CATTLE                             ---        700           5        0-905          ---         5115         405.3      2/14/2005     4709.7         ---      U        ---              ---
(D-19-16) 05caa       55        804874   CORONADO NATIONAL FOREST,                          ---         ---          ---        ---          ---           ---          ---          ---         ---         35        S        ---              ---
(D-19-16) 05cbc       55        804890   ASARCO INC,                                     1/25/1978     2591          7         0-10          ---           ---         480       1/25/1978       ---          ---      ---      ---              ---
(D-19-16) 05dac     GWSI        UW-79    VICTORIO LAND & CATTLE                          1/1/1980      700           4         0-20          ---         5290         471.1      3/29/1982     4818.9         ---      U        ---              ---
(D-19-16) 06          55        804969   ROSEMONT COPPER COMPANY                            ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE       ---              ---
(D-19-16) 06aac       55        804973   ROSEMONT COPPER COMPANY                            ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON        ---              ---
(D-19-16) 06aac       55        804974   ROSEMONT COPPER COMPANY                            ---         ---          ---        ---         ---            ---          ---          ---         ---          ---    MON        ---              ---
                                                                                                                     12         0-?         ---
(D-19-16) 06add     GWSI        UW-80    VICTORIO LAND & CATTLE                             ---        905                                               5130         497.3      3/29/1982     4632.7         ---      U        ---              ---
                                                                                                                      4        0-20       605-905
(D-19-16) 06bcc       55        804887   CORONADO NATIONAL FOREST,                          ---         ---          ---        ---         ---            ---          ---          ---         ---         35        S        ---              ---
(D-19-16) 06cbd       55        508620   ANAMAX MINING CO,                               8/6/1984      1480          ---        ---          ---           ---          ---          ---         ---          ---    NONE       D      ABANDONED
(D-19-16) 06cbd       55        508622   ANAMAX MINING CO,                                  ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE       ---              ---
(D-19-16) 06cbd       55        511555   ANAMAX MINING CO,                               8/7/1985      1480          ---        ---          ---           ---          ---          ---         ---          ---    NONE       D      ABANDONED
(D-19-16) 06cca       55        804982   ROSEMONT COPPER COMPANY                            ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON        ---              ---
(D-19-16) 06cca       55        804983   ROSEMONT COPPER COMPANY                            ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    MON        ---              ---
(D-19-16) 06ddc       55        804875   CORONADO NATIONAL FOREST,                          ---         ---          ---        ---          ---           ---          ---          ---         ---         35        S        ---              ---
(D-19-16) 07aaa       55        501991   ROSEMONT COPPER COMPANY                         2/18/1982     905           4        0-904          ---           ---         700       2/18/1982       ---          ---      S        D                ---
(D-19-16) 08aaa    GWSI,35      603467   VICTORIO LAND & CATTLE                          1/1/1942      554           6        0-490          ---         5160         356.9      12/15/1987     4803          ---      S        D                ---
(D-19-16) 08aaa       55        603467   BRADY, SR KATHLEEN,                             1/1/1942      554           6        0-540          ---           ---         450        1/1/1942       ---         15        S        ---              ---
(D-19-16) 09bac       55        522685   ERANGER, RICHARD,                               2/2/1989      540           6        0-540          ---           ---         436        2/2/1989       ---         10      D, S, I    D                ---
(D-19-16) 09bbb       55        518794   LAUDERBACH, DENNIS,                             8/29/1987     707           6        0-680          ---           ---         490       8/29/1987       ---          ---    NONE       D                ---
(D-19-16) 09bbc     GWSI        UW-75                              ---                      ---         ---          ---      ?-554          ---         5130         425.2      12/15/1987    4704.8         ---      U        ---              ---
(D-19-16) 09bca       55        505113   HOOPER, STANLEY,                                5/4/1983      500           6        0-500          ---           ---         440        5/4/1983       ---         10        D        D                ---
(D-19-16) 09bda       55        518533   BRUCE DOUGLAS & JUDY BRYDON                    12/10/1987     555           6        0-555          ---           ---         415       12/10/1987      ---         10        D        D                ---
(D-19-16) 09caa       55        517036   GOODMAN & NEIGHORST,                            3/9/1987      420           6        0-420          ---           ---         358        3/9/1987       ---          ---      D        D                ---
(D-19-16) 09dac       55        206843   DAMON RODRIQUEZ                                 6/11/2005     400           6        0-400          ---           ---         230       6/11/2005       ---          ---      D        D                ---
(D-19-16) 09dba       55        504197   IDE, R                                         10/27/1982     430           8        0-414          ---           ---         350       10/27/1982      ---          8        D        D                ---
(D-19-16) 09dba       55        804908   BROWNING, WILLIAM & ZERILDA                        ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      ---      ---              ---
(D-19-16) 09dbb       55        517980   REICHARDT, BRYCE & MAYRENE                      7/3/1987      420           6        0-420          ---           ---         360        7/3/1987       ---          ---      D        D                ---
(D-19-16) 09dbb   55,GWSI,35    603468   HAROLD CAUTHEN                                  1/1/1942      404           6        0-394          ---         5040         356.1      12/15/1987    4683.9        30        S        ---    09caa in 55 and 35
(D-19-16) 09dcb       55        514147   CHARLES & JANIS HAMMOND                         5/2/1986      460           6        0-640          ---           ---         360        5/2/1986       ---         22        D        D                ---
(D-19-16) 10cca   55,GWSI,35    603469   CORONADO INV INC,                               1/1/1940      386           6        0-326          ---         4997         286.6      12/15/1987     4710         32        S        ---              ---
(D-19-16) 10ccc       55        545415   BLUE OAKS CORPORATION                          10/21/1994     465           6        0-465          ---           ---         211       10/21/1994      ---          ---       I       D                ---
(D-19-16) 10ccd       55        524808   DUNN, DONALD & Y,                               6/15/1989     416            8        0-416         ---           ---         290       6/15/1989       ---         30        D        D                ---
                                                                                                                     11        0-20          ---
(D-19-16) 11bbb   55,GWSI,35    608633   BLM-SAFFORD DISTRICT                            10/6/1974     1510                                              4942         245.1      2/14/2005     4696.9         ---    S, OE      D                ---
                                                                                                                      9       20-490       90-490
(D-19-16) 11bbb       55        608633   BLM-SAFFORD DISTRICT                            10/6/1974     1510          10        0-490         ---           ---         244       10/6/1974       ---         98        S        ---              ---
(D-19-16) 12aac     55,35       608608   BLM-SAFFORD DISTRICT                            7/31/1974     1500          10       0-488        88-488          ---         86        7/31/1974       ---         293     S, OE      D                ---
(D-19-16) 14bdd    55,GWSI      634317   BLM-SAFFORD DISTRICT                               ---        260           6          ---          ---         4805         96.5       2/14/2005     4708.5        15        S        ---              ---




                                                                                                                  Page 17 of 22
                                                                        INVENTORY OF WELL RECORDS AND CONSTRUCTION INFORMATION WITHIN TWO (2) MILES

                                                                                      ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                             CASING                                  NON-PUMPING WATER LEVEL
                              ADWR                                                                                                                   ALTITUDE
                               WELL                                                                 DEPTH                             PERFORATED     OF LAND                                             PUMPING
   CADASTRAL        WELL     REGISTRY                                                   DATE       DRILLED      DIAMETER    DEPTH      INTERVAL      SURFACE       DEPTH         DATE       ALTITUDE      RATE     WATER
    LOCATION      REGISTRY   NUMBER                             OWNER                COMPLETED     (ft, bls)a    (inches)    (feet)      (ft, bls)   (ft, amsl)b   (ft, bls)   MEASURED     (ft, amsl)    (gpm)c    USEd       LOGSe         REMARKS
(D-19-16) 15ab       55       646556  BARCHAS, CECILE, M                               1/1/1960        ---          ---        ---           ---          ---          ---        ---            ---         5      D, S         ---            ---
(D-19-16) 15ab       55       646557   BARCHAS, CECILE, M                              1/1/1960      200           ---        ---          ---           ---          ---         ---          ---          3        D, S       ---              ---
(D-19-16) 15aba   GWSI,35     UW-81                              ---                      ---        300           6        0-331          ---         4900         203.4      1/16/2007     4696.6         ---      D, U       ---              ---
(D-19-16) 15cac      55       205541   REBECCA E STRAHLE                               1/12/2005     350           7        0-340          ---           ---         215       1/12/2005       ---          ---       D         D                ---
(D-19-16) 15cad     55,35     640272   THURBER, H B                                    1/1/1970      403           8        0-403        20-403          ---         198        1/1/1970       ---         15        D, S       D      15cbd in 35
(D-19-16) 15cd       55       650399   MORRISON, C E                                   7/1/1961      270           4        0-270          ---           ---         225        7/1/1961       ---         10         D         ---              ---
(D-19-16) 15cdd      55       647425   ROYBALL, F N                                    1/1/1946      310           6        0-310          ---           ---         240        1/1/1946       ---          1         D         ---              ---
(D-19-16) 16bba      55       522084   BERTSCH, DALE, R                               10/17/1988     540           8         0-22          ---           ---         350       10/17/1988      ---          ---       D         D                ---
(D-19-16) 16bcc   55,GWSI     603463   UNITED BANK OF ARIZONA                          1/1/1942      472           8        0-446          ---         5045          450        1/1/1942       ---         15        S, D       D      16cbb in 55 and 35
(D-19-16) 16ccc   GWSI,35     603464   MICHAEL S MILROY                                1/1/1939      301           8          ---          ---         5005          283        1/1/1939       ---          ---      D, S       D                ---
(D-19-16) 16cdc      35       47242    LOWREY RANCH CO                                 1/1/1939      360           8          ---          ---           ---         283        1/1/1939       ---          ---       S         D                ---
(D-19-16) 16ddb   GWSI,35     603466   VICTORIO LAND & CATTLE                          1/1/1939      260           8          ---          ---         4931         226.5      2/14/2005     4704.5         ---       S         D                ---
(D-19-16) 16ddb      35       UW-82                              ---                   1/1/1934      365           ---        ---          ---           ---         200        1/1/1934       ---          ---       S         ---              ---
(D-19-16) 16ddc      55       511515   BAKER, JULIA BAIRD,                             6/21/1985     365           8        0-365          ---           ---         285       6/21/1985       ---         20         D         D                ---
(D-19-16) 16ddd      55       531344   GARRETT, THOMAS, L                              4/9/1991      398           8        0-398          ---           ---         330        4/9/1991       ---          ---     D, I, S     D                ---
(D-19-16) 16ddd      55       603466   UNITED BANK OF AZ,                             12/31/1939     260           8        0-245          ---           ---         230       12/31/1939      ---         25         S         ---              ---
(D-19-16) 17bab      55       549932   FOREST SVC SURFACE,                                ---         ---          ---        ---          ---           ---          ---          ---         ---          ---     MIN, D      ---              ---
(D-19-16) 17bdb   GWSI,35     UW-83                              ---                      ---         ---          ---        ---          ---         5080         209.1      11/9/1972     4870.9         ---       S         ---              ---
(D-19-16) 17bdc      55       641587   CORONADO NATIONAL FOREST,                          ---         ---          ---        ---          ---           ---          ---          ---         ---          ---       S         ---              ---
(D-19-16) 17bdc      55       642125   BOWMAN, R B                                     1/1/1950      420           6          ---          ---           ---         390        1/1/1950       ---          ---       S         ---              ---
(D-19-16) 17ddd      55       603464   MILROY, MICHAEL, S                             12/31/1939     301           8        0-301          ---           ---         260       12/31/1939      ---         30        S, D       ---              ---
(D-19-16) 18bdc      55       556411   ASARCO INC,                                        ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      S, C       ---              ---
(D-19-16) 18cca      55       204116   ROBERT BOWMAN                                   8/17/2004     500           5        0-500          ---           ---         133       8/17/2004       ---          ---       D         D                ---
(D-19-16) 18cca   GWSI,35     UW-84                              ---                      ---         ---          6        0-350          ---         5160         54.8       11/9/1972     5105.2         ---       D         ---              ---
(D-19-16) 18ccd      55       642124   BOWMAN, R B                                     1/1/1955      360           6          ---          ---           ---          ---          ---         ---          ---      S, D       ---              ---
(D-19-16) 18dbd      55       552407   UNITED STATES, USDA FOREST SERVICE                 ---         ---          ---        ---          ---           ---          ---          ---         ---         31      MIN, D, S    ---              ---
(D-19-16) 18ddb      55       544411   YELLOW ROCK CORP,                               5/8/1995      1180          8        0-1180         ---           ---         446        5/8/1995       ---          ---     MIN, D      D                ---
(D-19-16) 19         55       637250   URQUIDES, J R                                   6/1/1979      133           6        0-130          ---           ---         100        6/1/1979       ---         12         D         ---              ---
(D-19-16) 19ccc      35       64325    JOSE URQUIDES                                   6/6/1978      100           6         0-80          ---           ---          35        6/6/1978       ---          ---       D         D                ---
(D-19-16) 19cda      55       562190   URQUIDES, JOSE,                                 5/5/1997      260           8        0-260          ---           ---          36        5/5/1997       ---          ---      D, S       D                ---
(D-19-16) 19dc    GWSI,35     UW-85                              ---                      ---         24           48         ---          ---         5200         22.1       9/24/1941     5177.9         ---       S         ---              ---
(D-19-16) 21aac      55       804811   FILLMAN, HOPE, D                                4/30/1979     450           6        0-450          ---           ---          32       4/30/1979       ---          ---      D, S       ---              ---
(D-19-16) 21aac      35       66744    HOPE D FILLMAN                                  3/24/1979     450           6        0-450       250-450          ---         321       3/24/1979       ---          ---       D         D                ---
(D-19-16) 21aad      55       530379   DURKIN, MARTIN, E                               2/9/1991      400           7        0-400          ---           ---         300        2/9/1991       ---         15         D         D                ---
(D-19-16) 21abb      55       804812   BURLESON & PRUETT                              12/31/1925     382           6          ---          ---           ---         347       12/31/1925      ---         35        D, S       ---              ---
(D-19-16) 21abb      35       66745    HOPE D FILLMAN                                  1/1/1925      382           6          ---          ---           ---         347        6/3/1978       ---          ---       S         D                ---
(D-19-16) 21acc   55,GWSI     629668   H W PRUETT                                         ---        511           8        0-511          ---         5082         380.6      12/16/1987    4701.4         8        D, S       ---              ---
(D-19-16) 21ada      55       533560   JOSE/GREGORY MARTINEZ/HOLLMAN                   11/6/1991     415           6        0-415          ---           ---         281       11/6/1991       ---         15         D         D                ---
(D-19-16) 21adc      55       544137   BYRON, DON,                                     3/28/1995     460           6        0-460          ---           ---         325       3/28/1995       ---          ---       D         D                ---
(D-19-16) 21bab   55,GWSI     603465   MILROY, MICHAEL, S                             12/31/1939     360           8        0-326          ---         4985         281.4      3/30/1982      4704         35        S, D       ---    21bba in 55
(D-19-16) 21bba   55,GWSI     603457   MILROY, MICHAEL, S                              6/30/1957     527           8        0-527          ---         5010          305       6/30/1957       ---         400       D, S       ---    21bbb in 55
(D-19-16) 21bbd      35       47244    LOWREY RANCH CO                                 1/1/1957      527           8          ---          ---           ---         305        1/1/1957       ---          ---       S         D                ---
(D-19-16) 21ddc      55       501829   CORONADO INV INC,                                  ---         ---          ---        ---          ---           ---          ---          ---         ---          ---       D         ---              ---
(D-19-16) 21ddc      55       565705   WATT & WENDY WEBB                               1/6/1998      440           6        0-420          ---           ---         360        1/6/1998       ---          ---       D         D                ---




                                                                                                                Page 18 of 22
                                                                        INVENTORY OF WELL RECORDS AND CONSTRUCTION INFORMATION WITHIN TWO (2) MILES

                                                                                      ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                             CASING                                  NON-PUMPING WATER LEVEL
                                ADWR                                                                                                                 ALTITUDE
                                 WELL                                                               DEPTH                             PERFORATED     OF LAND                                             PUMPING
   CADASTRAL        WELL       REGISTRY                                                 DATE       DRILLED      DIAMETER    DEPTH      INTERVAL      SURFACE       DEPTH          DATE      ALTITUDE      RATE     WATER
    LOCATION      REGISTRY     NUMBER                         OWNER                  COMPLETED     (ft, bls)a    (inches)    (feet)      (ft, bls)   (ft, amsl)b   (ft, bls)   MEASURED     (ft, amsl)    (gpm)c   USEd    LOGSe         REMARKS
(D-19-16) 21ddd      55         506279  WADE A & ALISON O BUNTING                     9/18/1983       360            6       0-360           ---          ---        270        9/18/1983        ---        28      D        D              ---
(D-19-16) 22abc       55        650023   PAULIN, R W                                   1/1/1951      365           6        0-365          ---           ---         265        1/1/1951       ---         10        D      ---               ---
(D-19-16) 22abd       55        205739   ROBERT EDWARD MUNGER JR                       7/12/2005     420           7        0-420          ---           ---         249        7/12/2005      ---          ---      D      D                 ---
(D-19-16) 22abd       35        68242    R W PAULIN                                    1/1/1951      365           6          ---          ---           ---         265        6/18/1978      ---          ---      D      D                 ---
(D-19-16) 22acb       55        203748   BARCHAS FAMILY LLC                               ---        420           7        0-420          ---           ---         268           ---         ---          ---      D      D                 ---
(D-19-16) 22add       55        210725   KENNETH ROSSON                                5/16/2006     360           7        0-360          ---           ---         221        5/16/2006      ---          ---      D      D      CAPPED
(D-19-16) 22bac       55        551716   PORTER, DAN, B                                6/21/1996     419           8        0-419          ---           ---         330        6/21/1996      ---          ---      D      D                 ---
(D-19-16) 22bad       55        548210   ESCALANTE, FRANK, W                           3/13/1995     400           6        0-400          ---           ---         260        3/13/1995      ---          ---      D      D                 ---
(D-19-16) 22bbc       55        206466   GREG HOLLMAN                                     ---        440           6        0-440          ---           ---         300           ---         ---          ---      D      D                 ---
(D-19-16) 22bcb       55        202504   ROBERT & NANCY LORENSTEN                         ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---               ---
(D-19-16) 22bcc       55        212788   CYNTHIA E BOWER                               6/11/2007     460           7        0-460          ---           ---         280        6/11/2007      ---          ---      D      D                 ---
(D-19-16) 22bda       55        543131   DRAVES, RICHARD, A                            6/4/1994      400           5        0-400          ---           ---         300        6/4/1994       ---          ---      D      D                 ---
(D-19-16) 22ccb       55        517037   WAGONER, JAMES, M                             3/17/1987     380           8        0-380          ---           ---         300        3/17/1987      ---         10        D      D                 ---
(D-19-16) 22cd        55        646129   FELDMANN, L J                                    ---        320           6        0-320          ---           ---         260           ---         ---          8       D, S    ---               ---
(D-19-16) 22cda       55        208702   TIMOTHY S AXELROD                             5/19/2006     380           7        0-380          ---           ---         250        5/19/2006      ---          ---      D      D      CAPPED
(D-19-16) 22db        55        646555   SMITH & OTT, BARBRA & PETER                   1/1/1960      342           ---        ---          ---           ---          ---          ---         ---          5        D      ---               ---
(D-19-16) 22dba       55        595178   PETER & BARBARA OTT                           6/28/2003     360           7        0-360          ---           ---         270        6/28/2003      ---          5        D      D                 ---
(D-19-16) 22ddb       55        210956   STEVEN LEE ALLEN                                 ---        320           5        0-320          ---           ---         231           ---         ---          ---      D      D                 ---
(D-19-16) 23bbb       55        624509   BABB, W D                                     7/1/1979      350           6        0-350          ---           ---         260        7/1/1979       ---         20        D      ---               ---
(D-19-16) 23bbb       55        637237   BIDEGAIN, PETE, B                             1/2/1978      350           6        0-350          ---           ---         146        1/2/1978       ---         15        ---    ---               ---
(D-19-16) 23bbb       35        76984    WILLIAM D BABB                                5/15/1979     350           6        0-350       250-350          ---         260        5/15/1979      ---          ---      D      D                 ---
(D-19-16) 23bca       55        572718   KAY J ACCORDINO                               3/26/1999     290           6        0-290          ---           ---         240        3/26/1999      ---         10        D      D                 ---
(D-19-16) 23ccc       55        515892   BRASWELL, J D                                    ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---               ---
(D-19-16) 23dac       55        517130   BIDEGAIN, PETE, B                             3/19/1987     360           6        0-360          ---           ---         280        3/19/1987      ---          ---      D      D                 ---
(D-19-16) 24cda    55,GWSI      634316   BLM-SAFFORD DISTRICT                             ---        203           5        0-510          ---         4804         103.7       2/14/2005    4700.3        15        S      ---               ---
(D-19-16) 25c         55        641825   PERRY, J F                                    7/18/1977     450           6        0-450          ---           ---         100        7/18/1977      ---         32       D, S    ---               ---
(D-19-16) 25c         55        641826   FELLOWS, FRED, R                             12/11/1979     590           6        0-590          ---           ---         100       12/11/1979      ---         30       D, S    ---               ---
(D-19-16) 25c         55        649521   KEIM JR, G H                                  6/7/1980      260           6        0-240          ---           ---          90        6/7/1980       ---         25        D      ---               ---
(D-19-16) 25c         55        804894   BYFIELD, JULIA                                8/14/1968     580           6        0-580          ---           ---          80        8/14/1968      ---         35       D, S    ---               ---
(D-19-16) 25caa       55        566141   JOHN & CHERAUX HAMPTON                        3/12/1998     296           8        0-296          ---           ---          74        3/12/1998      ---          ---      D      D                 ---
(D-19-16) 25caa    GWSI,35      UW-86                             ---                     ---         ---          6          ---          ---         4790         105.1      11/13/1972    4684.9         ---      S      ---               ---
(D-19-16) 25cbc       55        541417   GORDON & DENISE PURVIS                        11/8/1993     195           8        0-195          ---           ---         145        11/8/1993      ---         20       D, S    D                 ---
(D-19-16) 25ccb       55        645549   KELLY, JAMES,                                 1/1/1930      120           ---       0-20          ---           ---         110        1/1/1930       ---          ---     S, D    ---               ---
(D-19-16) 25ccb       55        645550   KELLY, JAMES,                                 1/1/1930      130           ---       0-20          ---           ---         120        1/1/1930       ---          ---     S, D    ---               ---
(D-19-16) 25ccc       35        83831    GEORGE KEIM                                   5/12/1980     300           6        0-240       200-240          ---         180        5/12/1980      ---          ---      D      D                 ---
(D-19-16) 25ccd       55        556481   SOUTHWEST GAS CORP,                           12/4/1996     235           6        0-230          ---           ---          ---          ---         ---          ---    NONE     D      CATHODIC
(D-19-16) 25cdc   55,GWSI,35    649521   KEIM JR, G H                                  6/7/1980                    6        0-240       200-240        4818         96.8        11/4/1981     4721         25       D, S    D      25c in 55; 25ccc in 35
(D-19-16) 25cdc     GWSI        649521   GEORGE KEIM                                   5/12/1980     300           6          ---       200-240        4818         96.8        11/4/1981     4721          ---     D, S    D                 ---
(D-19-16) 25dab       55        207509   REX E & CAROL M WILLOUGHBY                       ---        200           6        0-200          ---           ---          97           ---         ---         15        D      D                 ---
(D-19-16) 26bad    55,GWSI      634315   BLM-SAFFORD DISTRICT,                            ---        256           5        0-290          ---         4867         152.1       2/14/2005    4714.9         5        S      ---               ---
(D-19-16) 27abb       55        506538   JOAN G RASH                                  10/25/1983     415           6        0-415          ---           ---         320       10/25/1983      ---         10        D      D                 ---
(D-19-16) 27abc       55        215358   KATHY DAILY                                   5/2/2007      345           6        0-345          ---           ---         240        5/2/2007       ---          ---      D      D                 ---
(D-19-16) 27acc       55        512717   SMITH, MICHAEL,                               11/4/1985     340           6        0-340          ---           ---         240        11/4/1985      ---          ---      D      D                 ---
(D-19-16) 27acd       55        804909   BRADLEY, DAVID                                   ---         ---          ---        ---          ---           ---          ---          ---         ---          ---     ---     ---               ---




                                                                                                                Page 19 of 22
                                                                           INVENTORY OF WELL RECORDS AND CONSTRUCTION INFORMATION WITHIN TWO (2) MILES

                                                                                         ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                                CASING                                  NON-PUMPING WATER LEVEL
                                 ADWR                                                                                                                   ALTITUDE
                                  WELL                                                                 DEPTH                             PERFORATED     OF LAND                                             PUMPING
   CADASTRAL         WELL       REGISTRY                                                   DATE       DRILLED      DIAMETER    DEPTH      INTERVAL      SURFACE       DEPTH          DATE      ALTITUDE      RATE     WATER
    LOCATION       REGISTRY     NUMBER                             OWNER                COMPLETED     (ft, bls)a    (inches)    (feet)      (ft, bls)   (ft, amsl)b   (ft, bls)   MEASURED     (ft, amsl)    (gpm)c   USEd      LOGSe         REMARKS
(D-19-16) 27add       55         512791  SRADER, DARREL,                                 11/8/1985       300            6       0-300           ---          ---        223        11/8/1985        ---        10      D          D              ---
                                                                                                                        8       0-336
(D-19-16) 27bac    55,GWSI,35    603470   CORONADO INV INC,                               1/1/1939      350                                   ---         4955         234.8      12/16/1987    4720.2        15        S        ---    27bad in 55 and 35
                                                                                                                        6      290-350
(D-19-16) 27bbb        55        557121   BAKER REVOCABLE TRUST                           9/7/1996      380             6       0-380         ---           ---         281        9/7/1996       ---         11        D        D                 ---
(D-19-16) 27bcc        55        508811   REFF, M                                         1/23/1985     390           6         0-390         ---           ---         275        1/23/1985      ---         10        D        D                 ---
(D-19-16) 27bdb        55        519820   CHAMBERS, WESS, P                              12/13/1987     360           6         0-360         ---           ---         258       12/13/1987      ---         33        D        D                 ---
(D-19-16) 27ddb        55        804931   HABER TRUST KAI HABER TRUSTEE                   1/28/2007     415           5         0-413         ---           ---         280        1/28/2007      ---          ---      D        D                 ---
(D-19-16) 28cb      GWSI,35      UW-87                              ---                      ---        350           4          ---          ---         5000        326.11       9/1/1941     4673.89        ---      S        ---               ---
(D-19-16) 28dbc    55,GWSI,55    603462   VICTORIO LAND & CATTLE                          1/1/1940      275           8         0-259         ---         4956         226.4      12/16/1987    4729.6        25        S        D      28dca in 55 and 35
(D-19-16) 28dc         55        642736   CORONADO NATIONAL FOREST,                       1/1/1930       ---          ---        ---          ---           ---          ---          ---         ---          ---      S        ---               ---
(D-19-16) 29ddb     55,GWSI      634314   GREATERVILLE PARTNERSHIP,                          ---        320           4         0-275         ---         4873         322.6       2/16/2005    4550.4        15        S        ---               ---
(D-19-16) 30dac        55        634312   GREATERVILLE PARTNERSHIP,                          ---         65           ---        ---          ---           ---          30           ---         ---         10        S        ---               ---
(D-19-16) 30dac        55        634313   GREATERVILLE PARTNERSHIP,                          ---         65           ---        ---          ---           ---          30           ---         ---         10        S        ---               ---
(D-19-16) 31           55        804917   ROSEMONT RANCH, LLC                                ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    OME        ---               ---
(D-19-16) 31           55        804923   ROSEMONT RANCH, LLC                                ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    OME        ---               ---
(D-19-16) 31           55        804927   ROSEMONT RANCH, LLC                                ---         ---          ---        ---          ---           ---          ---          ---         ---          ---    NONE       ---               ---
(D-19-16) 31aaa        55        634311   CORONADO NATIONAL FOREST,                          ---        320           4          ---          ---           ---          ---          ---         ---         15        S        ---               ---
(D-19-16) 31aac        55        579631   CORONADO NATIONAL FOREST                        3/27/2000     470           6         0-470         ---           ---         296        3/27/2000      ---          6        D        D                 ---
(D-19-16) 31cca        55        509557   SULGER, P                                       1/1/1985      260           6         0-260         ---           ---          20        1/1/1985       ---          ---    D, MIN     D                 ---
(D-19-16) 31dcb        35        84777    PAUL SULGER                                     1/1/1955       80           ---        ---          ---           ---          ---          ---         ---          ---      D        D                 ---
(D-19-16) 31dcd        55        600034   SULGER, P                                          ---        100           4         0-100         ---           ---          30           ---         ---        1000     D, MIN     ---               ---
(D-19-16) 34abc1   55,GWSI,35    631402   CISTERCIAN NUNS                                    ---        212           8         0-205         ---         4830         125.5       2/16/2005    4704.5        30        D        D                 ---
(D-19-16) 34abc2   55,GWSI,35    631401   SANTA RITA ABBEY INC                            2/23/1978     500           6         0-500      160-500        4830         121.4       2/16/2005    4708.6        30        D        D      34aba in 55, 34aca in 35
(D-19-16) 34ba      GWSI,35      UW-88                              ---                      ---        230           8         0-120      120-205        4900          126           ---         ---          ---      S        D                 ---
(D-19-16) 34bbd    55,GWSI,35    604553   SANTA RITA ABBEY INC                               ---        225           10        0-225         ---         4875         159.9       2/16/2005    4715.1         3        S        D                 ---
(D-19-16) 34bbd        55        604554   SANTA RITA ABBEY INC                            1/1/1925      107           8         0-107         ---           ---          87        1/1/1925       ---          5        S        ---               ---
(D-19-16) 34bbd        55        643205   SANTA RITA ABBEY INC                               ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      S        ---               ---
(D-19-16) 34bbd        35        UW-89                              ---                      ---         ---          10         ---          ---           ---         155           ---         ---          ---      S        ---               ---
(D-19-16) 34bdd        35        76115    BETTIE A BECK                                   2/12/1925     107           8         0-107         ---           ---          88        4/22/1979      ---          ---      S        D                 ---
(D-19-16) 34daa        55        642737   SANTA RITA ABBEY INC                               ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      S        ---               ---
(D-19-16) 34daa      GWSI        UW-90    CISTERCIAN NUNS                                    ---         ---          ---        ---          ---         4797         87.4        2/16/2005    4709.6         ---      U        ---               ---
(D-19-16) 35bc       GWSI        UW-91                              ---                      ---         ---          ---       ?-500         ---         4800         69.22       9/1/1941     4730.78        ---     D, S      ---               ---
(D-19-16) 35bc         35        UW-92                              ---                      ---         65           ---        ---          ---           ---          69           ---         ---          ---     OE        ---               ---
(D-19-16) 35cab        55        593149   RONALD S GERSON                                    ---        200           6         0-200         ---           ---         110           ---         ---          ---      D        D                 ---
(D-19-16) 35cad        55        541289   BAILEY FOSTER                                  10/29/1993     140           6         0-140         ---           ---          75       10/29/1993      ---         25        D        D                 ---
(D-19-16) 35cba        55        592200   BRADLEY A HABER                                    ---        200           6         0-200         ---           ---         115           ---         ---          ---      D        D                 ---
(D-19-16) 35cbb        55        557925   RONALD S GERSON                                 9/28/1996     200           8         0-200         ---           ---         120        9/28/1996      ---          ---      D        D                 ---
(D-19-16) 35ccc        55        804902   DIXON, MARGARET, A                             12/31/1917     133           6          ---          ---           ---          68       12/31/1917      ---         20      I, S, D    ---               ---
(D-19-16) 35daa     GWSI,35      UW-93                              ---                      ---         ---          6          ---          ---         4749           30        11/6/1972     4719          ---      S        ---               ---
(D-19-16) 35dad     55,GWSI      634310   BLM-SAFFORD DISTRICT,                           9/1/1936      143           6          ---          ---         4740         29.9        2/15/2005    4710.1        15        S        D                 ---
(D-19-16) 35dad        35        UW-94                              ---                   1/1/1936      101           6          ---          ---           ---          31        1/1/1936       ---          ---      S        D                 ---
(D-19-16) 36cb      GWSI,35      UW-95                              ---                   9/1/1941      175           12        0-26         26-?         4725         23.83       9/20/1941    4701.17        ---     IND       D                 ---
(D-19-16) 36cbc        55        616250   AZ STATE LAND DEPT                                 ---        154           12         ---          ---           ---          38           ---         ---          ---      ---      ---    CAPPED
(D-19-17) 06bab        55        634287   BLM-PHOENIX DISTRICT,                              ---        290           6          ---          ---           ---          ---          ---         ---         15        S        ---               ---
(D-19-17) 06bbd        55        616251   AZ STATE LAND DEPT                                 ---        291           6         0-291         ---           ---         175           ---         ---          4        S        ---               ---




                                                                                                                   Page 20 of 22
                                                                            INVENTORY OF WELL RECORDS AND CONSTRUCTION INFORMATION WITHIN TWO (2) MILES

                                                                                          ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                                 CASING                                  NON-PUMPING WATER LEVEL
                               ADWR                                                                                                                      ALTITUDE
                                WELL                                                                    DEPTH                             PERFORATED     OF LAND                                             PUMPING
   CADASTRAL          WELL    REGISTRY                                                     DATE        DRILLED      DIAMETER    DEPTH      INTERVAL      SURFACE       DEPTH          DATE      ALTITUDE      RATE     WATER
    LOCATION       REGISTRY NUMBER                           OWNER                       COMPLETED     (ft, bls)a    (inches)    (feet)      (ft, bls)   (ft, amsl)b   (ft, bls)   MEASURED     (ft, amsl)    (gpm)c   USEd      LOGSe         REMARKS
(D-19-17) 08bcb    55,GWSI,35  634285  BLM-SAFFORD DISTRICT,                                ---           211            6         ---           ---        4592        119.1       1/16/2007     4472.9         5      S          ---            ---
                                                                                                                         9        0-80           ---
(D-19-17) 08bcc      55,35      608610   BLM-SAFFORD DISTRICT                              9/10/1974     1460                                                ---         129        9/10/1974      ---         298     S, OE      D                ---
                                                                                                                         7      80-1110     310-1110
(D-19-17) 17bba        35       UW-96                                 ---                     ---         ---           13         ---           ---         ---          ---          ---         ---          ---      ---      ---              ---
(D-19-17) 17bbd    55,GWSI,35   608628   BLM-SAFFORD DISTRICT                              4/21/1970     845           12        0-331         ---         4539          -28       11/29/2006     4567         250     S, OE     G, D    17bba in 35
(D-19-17) 18aaa      GWSI       UW-97    ANAMAX MINING CO                                     ---         ---          ---        ---          ---         4558           ---          ---         ---          ---      S        ---              ---
(D-19-17) 18aca        55       207870   BUREAU OF LAND MANAGEMENT                            ---        610           8         0-610         ---           ---          64           ---         ---          ---     D, S      D                ---
(D-19-17) 18acd     55,GWSI     634301   BUREAU OF LAND MANAGEMENT                            ---        220           6          ---          ---         4640           ---          ---         ---          5       D, S      ---    18aca in 55
(D-19-17) 18adb        55       634302   BUREAU OF LAND MANAGEMENT                            ---         65           6         0-63          ---           ---          ---          ---         ---         15       D, S      ---    ABANDONED
(D-19-17) 18dab    55,GWSI,35   650502   DUKMAN, DAVID                                     3/8/1972                                                        4645          150        11/9/1973     4495          3        D        D                ---
(D-19-17) 18dab      GWSI       650502   G C SWEET                                         11/9/1973     350           8          ---       260-330        4645          150        11/9/1973     4495          ---      D        D                ---
(D-19-17) 18dab        55       650502   DUKMAN, DAVID                                     3/8/1972      320           8         0-320         ---           ---         250        3/8/1972       ---          3        D        ---              ---
(D-19-17) 18dab        35       UW-98    G C SWEET                                         11/9/1973     350            9        0-350      200-330          ---         150        11/9/1973      ---          ---      D        D                ---
                                                                                                                       11        0-17
(D-19-17) 19bac      55,35      608607   BLM-SAFFORD DISTRICT                              7/19/1974     1500                                                ---         157        7/19/1974      ---         137     S, OE      D                ---
                                                                                                                        9
                                                                                                                        9       17-504
                                                                                                                                 0-36       100-1100
                                                                                                                                               ---
(D-19-17) 20acb        55       608609   BLM-SAFFORD DISTRICT                              8/14/1974     1865                                                ---          35        8/14/1974      ---         300     S, OE      D      20bda in 35
                                                                                                                       7        36-1000     200-1000
(D-19-17) 29ddd        55       525175   WAGNER, FRED & IDA,                               7/29/1989     400           8         0-20          ---           ---         190        7/29/1989      ---         10        D        D                ---
(D-19-17) 31aa         55       637615   JAMES STODDARD                                    1/1/1967      150           6         0-150         ---           ---          70        1/1/1967       ---          3       S, D      ---              ---
(D-19-17) 31aaa        55       211598   JONAS & HEATHER IRBINSKAS                         6/29/2006     485           6         0-485         ---           ---         370        6/29/2006      ---          ---      D        D                ---
(D-19-17) 31aaa        55       543511   MIMMSC FRANK, W                                   4/21/1994     480           6         0-360         ---           ---         100        4/21/1994      ---         14        D        D                ---
(D-19-17) 31aab        55       202077   NANCY L RAFTERY                                      ---        450           7         0-450         ---           ---          79           ---         ---          ---      D        D                ---
(D-19-17) 31aac        55       211474   TIM STORER                                        8/10/2006     465           6         0-465         ---           ---          ---          ---         ---          ---      D        D                ---
(D-19-17) 31acc        55       584533   BRITT & CYNTHIA DAVIS                             3/1/2001      480           6         0-480         ---           ---          31        3/1/2001       ---          ---      D        D                ---
(D-19-17) 31ada        55       200835   THOMAS R BURKETT                                     ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D        ---              ---
(D-19-17) 31adb        55       535895   RICHARD D DARLING                                 7/21/1992     400           6         0-400         ---           ---         40         7/21/1992      ---         12       D, S      D                ---
(D-19-17) 31baa        55       637613   CARL & TERESA BENSON                              8/1/1968      585           6         0-585         ---           ---          75        8/1/1968       ---         12       S, D      ---              ---
(D-19-17) 31bba        55       217831   THEURET, JACK R. & BETH C.                           ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D        ---              ---
(D-19-17) 31bbb        55       556011   THEURET, JACK, B                                  6/26/1996     620           6         0-620         ---           ---          70        6/26/1996      ---         25        D        D                ---
(D-19-17) 31bbc        55       557505   THEURET, JACK, B                                     ---         ---          ---        ---          ---           ---          ---          ---         ---          ---      D        ---    ABANDONED
(D-19-17) 31bbc        55       576129   THOMAS PESCOD                                     8/4/2000      545           6         0-545         ---           ---         500        8/4/2000       ---         25        D        D                ---
(D-19-17) 31ca1     GWSI,35     UW-99                                 ---                  1/1/1940      180           6          ---          ---         4650         40.67       4/15/1941    4609.33        ---    OE, U      ---              ---
(D-19-17) 31ca2      GWSI       UW-100                                ---                     ---         42                      ---          ---         4635         38.38       4/15/1941    4596.62        ---       I       ---              ---
(D-19-17) 31caa     55,GWSI     608626   BLM-SAFFORD DISTRICT                              1/1/1967      550           12         ---          ---         4655          6.6        2/17/2005    4648.4        450      I, S      ---    31dbb in 55
(D-19-17) 31cbd        55       606763   RAY & CATHY HARM                                  6/30/1976     553           8         0-553         ---           ---          39        6/30/1976      ---         80       D, S      ---              ---
(D-19-17) 31cbd1    55,GWSI     628025   RAY & CATHY HARM                                  1/1/1940      200            8        0-100        ---          4660         38.5        2/17/2005    4621.5        20       D, S      ---              ---
                                                                                                                       11         0-80        ---
(D-19-17) 31cbd2    GWSI,35     606763   RAY HARM                                          6/30/1976     553                                               4662         22.4        2/17/2005    4639.6         ---     I, D      D                ---
                                                                                                                        9        0-553      438-533
(D-19-17) 31dbb        55       636223   BLM-SAFFORD DISTRICT,                                ---         60           48          ---        ---            ---          ---          ---         ---          5       I, S      ---              ---
(D-19-17) 31dbb      GWSI       UW-101   EMPIRE RANCH                                         ---         ---          ---         ---         ---         4601         31.3        2/17/2005    4569.7         ---      U        ---              ---
                                                                                                                       18         0-20
(D-19-17) 32abc        35       UW-102   GAC PROP INC OF ARIZONA                           2/15/1972     990                                   ---           ---          16        2/15/1972      ---          ---    MUN        D                ---
                                                                                                                       12        2-250
(D-19-17) 32abd     55,GWSI     608621   BLM-SAFFORD DISTRICT                              2/15/1972     1165          12        0-990      250-980        4602          43        12/16/1987     4559         700     D, T, S   D, G              ---
(D-19-17) 32abd        55       804930   BOISVERT, LOUIS OR CYRILLA                        12/8/2006     235           5         0-232         ---           ---          40        12/8/2006      ---          ---     IND       D                ---
(D-19-17) 32ac         55       650871   LUDWIG, R                                            ---         ---          6          ---          ---           ---          25           ---         ---         15       S, D      ---              ---
(D-19-17) 32acc        55       553868   KEENUM, ROBIN,                                    2/21/1996     100           6         0-100         ---           ---          38        2/21/1996      ---         13        D        D                ---
(D-19-17) 32adc        35       UW-103   GAC PROP OF ARIZONA                               1/1/1972      1150          12         ---          ---           ---          12        1/1/1972       ---          ---    MUN        G                ---
(D-19-17) 32b          55       609749   DOUGLAS, B                                        9/1/1968      200           6         0-160         ---           ---          40        9/1/1968       ---         20      I, S, D    ---              ---
(D-19-17) 32bbb        55       514875   IRGINSKAS, JONAS,                                 3/4/1987      380           6         0-380         ---           ---          63        3/4/1987       ---          ---      D        D                ---




                                                                                                                    Page 21 of 22
                                                                                       INVENTORY OF WELL RECORDS AND CONSTRUCTION INFORMATION WITHIN TWO (2) MILES

                                                                                                              ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                                                       CASING                                  NON-PUMPING WATER LEVEL
                                  ADWR                                                                                                                                         ALTITUDE
                                   WELL                                                                                       DEPTH                             PERFORATED     OF LAND                                             PUMPING
   CADASTRAL        WELL         REGISTRY                                                                      DATE          DRILLED      DIAMETER    DEPTH      INTERVAL      SURFACE       DEPTH         DATE       ALTITUDE      RATE     WATER
    LOCATION      REGISTRY       NUMBER                                 OWNER                                COMPLETED       (ft, bls)a    (inches)    (feet)      (ft, bls)   (ft, amsl)b   (ft, bls)   MEASURED     (ft, amsl)    (gpm)c   USEd    LOGSe   REMARKS
(D-19-17) 32bbc      55           200837  DANNY SMITH                                                           ---              ---          ---        ---           ---          ---          ---        ---            ---        ---     D        ---      ---
(D-19-17) 32bbc      55            514990     SMITH, R. DANIEL,                                                 3/3/1987        380          6        0-380          ---           ---          62        3/3/1987       ---          ---      D      D        ---
(D-19-17) 32bbc      55            537321     SMITH, MELINDA, V                                                    ---          ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---      ---
(D-19-17) 32bbc      55            545035     SMITH, DANIEL,                                                       ---          ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---      ---
(D-19-17) 32bbd      55            211349     MELINDA SMITH                                                    6/28/2006        405          6        0-406          ---           ---         295       6/28/2006       ---          ---      D      D        ---
(D-19-17) 32bbd      55            213667     FLOYD OR TRACEY MENSING                                         12/15/2006        126          6        0-126          ---           ---          35       12/15/2006      ---          ---      D      D        ---
(D-19-17) 32bcc      55            521482     DOUGLAS A SPOSITO                                                6/19/1988        360          6        0-360          ---           ---          31       6/19/1988       ---          ---      D      D        ---
(D-19-17) 32bda      55            583266     KIM A GOUGH                                                      2/22/2001        280          6        0-280          ---           ---          39       2/22/2001       ---         25        D      D        ---
(D-19-17) 32bdb      55            545032     SMITH, MELINDA, A                                                    ---          ---          ---        ---          ---           ---          ---          ---         ---          ---      D      ---      ---
(D-19-17) 32bdc      55            86632      ARTHUR C & HELENE A WHITE                                        12/8/1981        340          10       0-320          ---           ---          35       12/8/1981       ---          ---      I      ---      ---
(D-19-17) 32bdd   55,GWSI          631639     BURCH, M T                                                           ---          280          6        0-280          ---         4610           40           ---         ---         20       D, I    ---      ---
(D-19-17) 32cb       55            597280     DOUGLAS A SPOSITO                                                    ---          340          7        0-340          ---           ---          29           ---         ---          ---      D      D        ---
(D-19-17) 32dba      55            537203     BOISVERT, LOUIS & C.,                                             2/4/1993        160          8        0-160          ---           ---          70        2/4/1993       ---         10        D      D        ---
(D-19-17) 32dbd      55            637612     KEVIN & BONNIE IMAN                                               1/1/1906        55           30        0-50          ---           ---          45        1/1/1906       ---          5       S, D    ---      ---
(D-19-17) 32dbd      55            637614     KEVIN & BONNIE IMAN                                               7/1/1968        190          8        0-190          ---           ---          50        7/1/1968       ---         10       S, D    ---      ---
(D-19-17) 32dbd    GWSI           UW-104      STODDARD RANCH                                                       ---          ---          ---      ?-553          ---         4603           ---          ---         ---          ---      D      ---      ---
(D-19-17) 32dca      55            524194     NESS, ROBERT,                                                    4/20/1989        160          8        0-160          ---           ---          35       4/20/1989       ---          ---     D, S    D        ---
(D-19-17) 32dcc      55            531221     KARL, WALTER, J                                                  3/14/1991        154          6        0-154          ---           ---          40       3/14/1991       ---         16       D, S    D        ---
(D-19-17) 32dcd      55            539902     KAVATHAS, NICK,                                                  7/16/1993        160          6        0-160          ---           ---          40       7/16/1993       ---         15       D, S    D        ---

                          Notes:
                          --- no available data
                            a
                                ft, bls = feet below land surface                                           IND = Industrial
                            b
                                ft, amsl = feet above mean sea level                                        MIN = Mining
                            c
                                gpm = gallons per minute                                                    C = Commercial
                            d
                                Water Use:                                                                  MON = Monitor
                                    D = Domestic                                                            MUN = Municipal
                                    S = Stock                                                               OE = Other - exploration
                                    I = Irrigation                                                          T = Test
                            e
                                Logs:                                                                       NONE = None
                                    D = Driller's                                                           U = Unused
                                    G = Lithologic (Geologist's)
                                Data Sources: ADWR "55" and "35" Well Registries, and Groundwater Site Inventory Database




                                                                                                                                          Page 22 of 22
                         APPENDIX H

      TABLES OF CONSTRUCTION DETAILS
FOR NEWLY INSTALLED MONITORING WELLS
                    AND PIEZOMETERS
                                 TABLE 1. SUMMARY OF WELL CONSTRUCTION DETAILS FOR PC WELLS AND PZ PIEZOMETERS CONSTRUCTED IN 2007 AND 2008

                                                                               ROSEMONT PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                          Borehole                         Casing
                                 ADWR                                      Land Surface                    Total                                                     Perforated        Depth of Grouted     Surface
Well/Piezometer     Well       Registration     UTM-Y         UTM-X            Altitude       Date      Depth Drilled Diameter    Depth       Diameter    Depth       Interval       Pressure Transducerd     Seal
   Location       Identifier     Number         (feet)a       (feet)a       (feet, amsl)b   Completed      (feet)     (inches)    (feet)      (inches)    (feet)       (feet)c            (feet, bls)e       (feet)

(D-18-16)30cba      PC-1        55-906272     1717253.7      11556840          5,261         4/3/2007      1,021        10         0 - 42        6        0 - 40     200 - 1,020              ---            0 - 40
                                                                                                                         6       42 - 1,021      4       0 - 1,020


(D-18-16)30cdc      PC-2        55-214214     1717565.4      11555443          5,115        2/25/2007      1,506        10         0-65          6        0 - 62     200 - 1,260              ---            0 - 62
                                                                                                                         6       63-1,505        4       0 - 1,260


(D-18-16)31bbc      PC-3        55-214212     1716810.8      11553661          5,112        3/25/2007      1,365        10         0 - 65        6        0 - 62     200 - 1,360              ---            0 - 62
                                                                                                                         6       64 - 1,365      4       0 - 1,360


(D-18-15)36daa      PC-4        55-214173     1715869.2      11551775          5,220        4/28/2007      1,510        10         0-45          6        0 - 40   200 - 1,500f               ---            0 - 40
                                                                                                                         6       40-1,510        4       0 - 1,500


(D-18-16)30cad1     PC-5        55-908870     11,556,596.7   1,718,323.7      5,143.9       6/16/2008      2,010       14¾         0 - 40       10¾       0 - 40       109 - 901              ---            0 - 40
                                                                                                                       9 7/8     40 - 2,010     5½       0 - 2,000    946 - 1,477             ---
                                                                                                                                                                     1,521 - 2,001            ---


(D-18-16)30cad2     PZ-5        55-908871     11,556,554.8   1,718,367.9      5,144.5       6/27/2008      1,900       12¼         0 - 40      7 5/8      0 - 40          ---                 ---            0 - 40
                                                                                                                        6¾       40 - 1,900     2½       0 - 1,900        ---                600
                                                                                                                                                                          ---               1,150
                                                                                                                                                                          ---               1,800


(D-18-16)30bcc      PC-6        55-908872     11,557,840.8   1,716,515.8      5,357.1       8/31/2008      2,010       14¾         0 - 31       10¾       0-31         220 - 485              ---            0 - 31
                                                                                                                       9 7/8     31 - 2,000     5½       0-2,000       525 - 969              ---
                                                                                                                                                                     1,013 - 1,464            ---
                                                                                                                                                                     1,509 - 2,000            ---


(D-18-15)25dbd1     PC-7        55-908873     11,556,549.7   1,714,782.9      5,434.7       7/13/2008      2,010       14¾         0 - 60       10¾       0 - 60       109 - 569              ---            0 - 60
                                                                                                                       9 7/8     60 - 2,010     5½       0 - 2,000     613 - 878              ---
                                                                                                                                                                      920 - 1,402             ---
                                                                                                                                                                     1,447 - 1,986            ---




                                                                                                  Page 1 of 2
                                 TABLE 1. SUMMARY OF WELL CONSTRUCTION DETAILS FOR PC WELLS AND PZ PIEZOMETERS CONSTRUCTED IN 2007 AND 2008

                                                                               ROSEMONT PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                            Borehole                       Casing
                                 ADWR                                      Land Surface                    Total                                                     Perforated        Depth of Grouted     Surface
Well/Piezometer     Well       Registration     UTM-Y         UTM-X            Altitude       Date      Depth Drilled Diameter     Depth      Diameter    Depth       Interval       Pressure Transducerd     Seal
   Location       Identifier     Number         (feet)a       (feet)a       (feet, amsl)b   Completed      (feet)     (inches)     (feet)     (inches)    (feet)       (feet)c            (feet, bls)e       (feet)

(D-18-15)25dbd2     PZ-7        55-908874     11,556,559.1   1,714,833.5      5,436.6       8/15/2008      1,900         12¼       0 - 20       7 5/8     0 - 21          ---                 ---            0 - 21
                                                                                                                          6¾     21 - 1,900      2½      0 - 1,900        ---                485
                                                                                                                                                                          ---                800
                                                                                                                                                                          ---               1,245
                                                                                                                                                                          ---               1,680
                                                                                                                                                                          ---               1,810


(D-18-15)36abc1     PC-8        55-908875     11,553,748.3   1,713,672.6      5,389.7       5/14/2008      2,220        14¾        0 - 60       10¾       0 - 50       197 - 794              ---            0 - 50
                                                                                                                        9 7/8    60 - 2,220     5½       0 - 2,200    860 - 1,890             ---
                                                                                                                                                                     1,962 - 2,205            ---


(D-18-15)36abc2     PZ-8        55-908876     11,553,636.4   1,713,610.1      5,419.2       5/31/2008      2,010         12¼       0 - 60       7 5/8     0 - 60          ---                450             0 - 60
                                                                                                                          6¾     60 - 2,010      2½      0 - 2,000        ---               1,150
                                                                                                                                                                          ---               1,650
                                                                                                                                                                          ---               1,924


                                        Notes:
                                         --- Not applicable
                                           a
                                              UTM = Universal Transverse Mercator projection (NAD83 feet)
                                           b
                                              feet, amsl = feet above mean sea level
                                           c
                                              PC wells are screened with 5½-inch slotted steel pipe; slots are ⅛ by 3 inches, 24 slots per foot
                                           d
                                              PZ wells are cased with 2½-inch BQ steel pipe with transducers attached to outside of pipe and pressure grouted in hole
                                           e
                                              feet, bls = feet below land surface
                                            f
                                              20-foot sections of perforated casing are alternated with 20-foot sections of blank casing in this interval




                                                                                                 Page 2 of 2
                                                          TABLE 2. SUMMARY OF WELL CONSTRUCTION DETAILS FOR HC WELLS CONSTRUCTED IN 2008

                                                                                   ROSEMONT PROJECT, PIMA COUNTY, ARIZONA

                                      ADWR                                                                           Total             Borehole                            Casing
                                    Registration      UTM-Y         UTM-X       Wellhead Altitude     Date        Depth Drilled   Diameter   Depth        Diameter    Depth     Perforated Interval   Surface Seal
 Well Location    Well Identifier     Number          (feet)a       (feet)a       (feet, amsl)b     Completed        (feet)       (inches)    (feet)      (inches)    (feet)          (feet)             (feet)

(D-19-15)1bab1        HC-1A          55-908879     11,548,955.9 1,712,646.7          5,649.8        7/24/2008         440           15        0 - 20        10       0 - 20             ---              0 - 20
                                                                                                                                    9½       20 - 440        4       0 - 440         260 - 440

(D-19-15)1bab2        HC-1B          55-908880     11,548,926.3 1,712,650.4          5,649.9        7/22/2008         1000          15        0 - 20        10       0 - 20             ---              0 - 20
                                                                                                                                    9½       20 - 980        4       0 - 980         480 - 700
                                                                                                                                                                                     760 - 980

(D-19-16)6aad1        HC-2A          55-909047     11,548,313.3 1,720,920.8          5,000.2        6/26/2008         740           17        0 - 80        10       0 - 80             ---              0 - 80
                                                                                                                                    9½       80 - 740        4       0 - 740         120 - 740

(D-19-16)6aad2        HC-2B          55-909048     11,548,324.1 1,720,887.7          5,000.6        6/22/2008        1,000          17        0 - 80        10        0 - 80            ---              0 - 80
                                                                                                                                    9½      80 - 1,000       4       0 - 1,000      780 - 1,000

(D-18-16)29ccb1       HC-3A          55-909043     11,555,619.4 1,721,810.4          4,843.0        5/29/2008          53           17½       0 - 10        10        0 - 10            ---              0 - 10
                                                                                                                                     8¾       10 - 53        4        0 - 50          10 - 50

(D-18-16)29ccb2       HC-3B          55-908881     11,555,643.9 1,721,831.1          4,842.0        4/30/2008         394           17½       0 - 20        10       0 - 20             ---              0 - 20
                                                                                                                                     8¾      20 - 640       4        0 - 390         180 - 380
                                                                                                                                     5½     640 - 1,007

(D-18-16)29ccb3       HC-3C          55-908882     11,555,650.2 1,721,848.2          4,840.6        5/21/2008        1,000          17½       0 - 80        10        0 - 80            ---              0 - 80
                                                                                                                                     8¾     80 - 1,000      4        0 - 1000        440 - 620
                                                                                                                                                                                    700 - 1,000

(D-18-16)20dbc1       HC-4A          55-909049     11,561,804.1 1,724,230.2          4,973.2        6/22/2008         640            14       0 - 20        10       0 - 20             ---              0 - 20
                                                                                                                                    9 7/8    20 - 640        4       0 - 640         100 - 640

(D-18-16)20dbc2       HC-4B          55-909050     11,561,782.8 1,724,208.5          4,973.8        6/10/2008        1,000           14       0 - 21        10        0 - 21            ---              0 - 21
                                                                                                                                    9 7/8   21 - 1,020       4       0 - 1,000      680 - 1,000

(D-18-16)30bab1       HC-5A          55-908883     11,560,013.9 1,718,130.0          5,136.9        5/21/2008         540            15       0 - 20        10       0 - 20             ---              0 - 20
                                                                                                                                      9      20 - 540        4       0 - 540         100 - 540

(D-18-16)30bab2       HC-5B          55-908885     11,559,986.9 1,718,147.0          5,136.5        5/16/2008        1,000           15       0 - 20        10       0 - 20             ---              0 - 20
                                                                                                                                      9     20 - 1,000       4       0 - 960         580 - 960
                               Notes:
                                a
                                  UTM = Universal Transverse Mercator projection (NAD83 feet)
                                b
                                  feet, amsl = feet above mean sea level
                              --- Not applicable




                                                                                                    Page 1 of 1
                                                                 TABLE 3. SUMMARY OF WELL CONSTRUCTION DETAILS FOR RP WELLS CONSTRUCTED IN 2008

                                                                                           ROSEMONT PROJECT, PIMA COUNTY, ARIZONA

                                                                                                                         Borehole                        Casing
                                    ADWR                                    Land Surface                Total
                                  Registration     UTM-Y        UTM-X           Altitude     Date    Depth Drilled Diameter   Depth       Diameter    Depth       Perforated Interval Surface Seal
 Well Location    Well Identifier   Number         (feet)a      (feet)a      (feet, amsl)b Completed    (feet)     (inches)    (feet)     (inches)    (feet)            (feet)           (feet)

(D-18-16)28bab1      RP-2A        55-909051      11,560,042.8 1,730,511.1      4,540.3      7/18/2008     30          15       0 - 10       10        0 - 10             ---             0 - 10
                                                                                                                     9 7/8     10 - 30       4        0 - 30           10 - 30                       4,530.3   4,510.3

(D-18-16)28bab2      RP-2B        55-909052      11,560,074.4 1,730,509.9      4,539.5      7/14/2008     200         15       0 - 20       10       0 - 20               ---            0 - 20
                                                                                                                     9 7/8    20 - 200       4       0 - 200           80 - 200                      4,459.5   4,339.5

(D-18-16)28bab3      RP-2C        55-909053      11,560,105.7 1,730,516.6      4,538.9      7/17/2008     520         15       0 - 20       10       0 - 20              ---             0 - 20
                                                                                                                     9 7/8    20 - 500       4       0 - 500          240 - 500                      4,298.9   4,038.9

(D-18-16)33bbc1      RP-3A        55-909054      11,553,916.9 1,726,797.8      4,821.4      6/30/2008     440         14       0 - 20       10       0 - 20              ---             0 - 20
                                                                                                                     9 7/8    20 - 440       4       0 - 440          100 - 440                      4,721.4   4,381.4

(D-18-16)33bbc2      RP-3B        55-909056      11,553,946.2 1,726,811.7      4,821.5      6/27/2008     600         14       0 - 20       10       0 - 20              ---             0 - 20
                                                                                                                     9 7/8    20 - 600       4       0 - 600          460 - 600                      4,361.5   4,221.5

(D-18-16)32cad1      RP-4A        55-908886      11,551,414.5 1,724,034.5      5,021.0      6/6/2008      550         15       0 - 20       10       0 - 20              ---             0 - 20
                                                                                                                      9½      20 - 550      4        0 - 550          160 - 540                      4,861.0   4,481.0

(D-18-16)32cad2      RP-4B        55-908887      11,551,385.1 1,724,027.6      5,021.3      6/3/2008     1,000        15       0 - 20       10         0 - 20            ---             0 - 20
                                                                                                                      9½     20 - 1,000     4        0 - 1,000       580 - 1,000                     4,441.3   4,021.3

 (D-19-16)6cca        RP-5        55-909058      11,545,177.2 1,717,111.9      5,229.7      6/30/2008     600         15       0 - 20       10       0 - 20              ---             0 - 20
                                                                                                                      9½      20 - 600       4       0 - 600          200 - 600                      5,029.7   4,629.7

(D-18-16)15dcb        RP-6        55-908888      11,566,585.4 1,734,903.9      4,461.0      7/2/2008      360         15       0 - 20       10       0 - 20              ---             0 - 20
                                                                                                                      9½      20 - 360      4        0 - 360          200 - 360                      4,261.0   4,101.0

(D-18-16)15aaa        RP-7        55-908889      11,570,174.4 1,737,073.2      4,285.5      7/15/2008     250         15       0 - 20       10       0 - 20              ---             0 - 20
                                                                                                                      9½      20 - 260       4       0 - 250          102 - 250                      4,183.5   4,035.5

(D-18-16)23dba        RP-8        55-908890      11,562,054.8 1,740,731.0      4,375.7      7/11/2008     250         15       0 - 20       10       0 - 20              ---             0 - 20
                                                                                                                      9½      20 - 250       4       0 - 250          102 - 250                      4,273.7   4,125.7

(D-18-16)27ddc        RP-9        55-908891      11,554,884.8 1,736,270.1      4,644.1      7/13/2008     250         15       0 - 20       10       0 - 20              ---             0 - 20
                                                                                                                      9½      20 - 250       4       0 - 250          102 - 250                      4,542.1   4,394.1

                             Notes:
                              --- Not applicable
                                a
                                  UTM = Universal Transverse Mercator projection (NAD83 feet)
                                b
                                  feet, amsl = feet above mean sea level




                                                                                                          Page 1 of 1
            APPENDIX I

             2007 – 2008
SPRING MONITORING DATA
                                                                            TABLE 1. MONITORING DATA FOR SPRINGS AND SEEPS
                                                                                        ROSEMONT PROJECT AREA
                                                                                          PIMA COUNTY, ARIZONA
                                                                                                Page 1 of 8


                                                          UTM Coordinates
                                                             (NAD83)
 Spring or Seep                                     UTM-East      UTM-North        Date of                                             Data
                                                                                                                                            a
   Location              Spring Identifier          (meters)       (meters)      Measurement             Approximate Flow             Source                                    Remarks

(D-18-15)12dba      Sycamore Spring                   522,558        3,527,449    1/17/2008    Dry                                    M&A       Could not find water
                                                                                  3/19/2008    Dry                                    V         Located spring site, but dry.
                                                                                  3/19/2008    Dry                                    V         Located spring site, but dry.
                                                                                  4/22/2008    Dry                                    V
                                                                                  5/20/2008     ---                                   V         Wet - Seep
                                                                                  6/19/2008    Dry at surface, but dug sump is full   V         Puddle downstream from dug sump
                                                                                  7/30/2008    Flowing 1 gpm                          V         Creek flowing also. Sample ID: GF7301 & GF7302
                                                                                  8/25/2008    Flowing 1 gpm                          V         Creek flowing, starting near spring
                                                                                  9/26/2008    Flowing 1 gpm                          V         Creek flowing
                                                                                  10/21/2008   Dug sump is full                       V         Damp spots downsteam from box, Sample ID: mew10211
                                                                                  11/12/2008   Dug sump is full                       V         No flow
                                                                                  12/17/2008   Flowing 0.2 gpm                        V
                                                                                  1/22/2009    0.85 gpm                               V

(D-18-15)13aab      SS-2                                                          1/17/2008    Dry                                    M&A       Could not find water
                                                                                  3/19/2008    Dry                                    V         Could not find water
                                                                                  4/22/2008    Dry                                    V         Could not find water
                                                                                  5/20/2008    Dry                                    V         Could not find water
                                                                                  6/19/2008    Dry                                    V         Could not find water
                                                                                  7/30/2008    Dry                                    V         Could not find water
                                                                                  8/25/2008    ---                                    V         Not visited - No visible evidence of spring or seep

(D-18-15)24dcc      Peligro Adit                      521,945        3,523,686    6/25/2008    ~0.1 gpm                               V         Seep - Gravity-fed to stock tank via PVC pipe
                                                                                  7/23/2008    Seep                                   V         Seep - Gravity-fed to stock tank via PVC pipe
                                                                                  8/29/2008    Seep                                   V         Seep - Gravity-fed to stock tank via PVC pipe
                                                                                  9/23/2008    Drip                                   V         Seep - Gravity-fed to stock tank via PVC pipe
                                                                                  10/17/2008   Drip                                   V         Seep - Gravity-fed to stock tank via PVC pipe
                                                                                  11/12/2008   Drip                                   V         Seep - Gravity-fed to stock tank via PVC pipe
                                                                                  12/12/2008   Drip                                   V         Seep - Gravity-fed to stock tank via PVC pipe
                                                                                  1/12/2009    8-10 drips/sec                         V + M&A   No photo




    1232/07/Tbl11_MonitoringDataSprings_Seeps/12Feb2009
                                                                            TABLE 1. MONITORING DATA FOR SPRINGS AND SEEPS
                                                                                        ROSEMONT PROJECT AREA
                                                                                          PIMA COUNTY, ARIZONA
                                                                                                Page 2 of 8


                                                          UTM Coordinates
                                                             (NAD83)
 Spring or Seep                                     UTM-East      UTM-North        Date of                                   Data
                                                                                                                                  a
   Location              Spring Identifier          (meters)       (meters)      Measurement             Approximate Flow   Source                                Remarks

(D-18-16)14cab      Barrel Spring                     529,752        3,525,673    11/1/2008    See Remarks                  M&A       Ground wet for about 15'-20' from source
                                                                                  1/18/2008    See Remarks                  M&A       Ground wet for about 15'-20' from source
                                                                                  2/14/2008    Dry                          M&A
                                                                                  3/18/2008    Dry                          V
                                                                                  4/24/2008    Dry                          V
                                                                                  5/20/2008    Dry                          V
                                                                                  6/19/2008    Dry                          V
                                                                                  7/24/2008    Stream flowing               V         Could not distinguish flow from spring/stream
                                                                                  8/28/2008    Stream flowing               V         Could not distinguish flow from spring/stream
                                                                                  9/29/2008    Stream flowing               V         Could not distinguish flow from spring/stream
                                                                                  10/23/2008   Stream flowing               V         Could not distinguish flow from spring/stream
                                                                                  11/18/2008   Stream flowing 1 cfs         V         Could not distinguish flow from spring/stream
                                                                                  12/17/2008   Spring flowing ~0.2 gpm      V         6' long basin - Barrel Creek flowing west of spring
                                                                                  1/22/2009    No Flow                      V         5' long basin

(D-18-16)16ccc      Scholefield Spring (SC-1)         526,499        3,525,220    6/25/2007    No flow                      M&A
                                                                                  11/1/2007    No flow                      M&A
                                                                                  1/18/2008    No flow                      M&A
                                                                                  2/14/2008    No flow                      M&A       Spring area appears drier than previously - no standing water.
                                                                                  3/18/2008    No flow                      V
                                                                                   5/2/2008    Dry                          V
                                                                                  5/19/2008    Dry                          V
                                                                                  6/18/2008    Dry                          V
                                                                                  7/29/2008    No flow                      V         Small puddle approx. 1' diameter
                                                                                  8/22/2008    No flow                      V         Small puddle approx. 1' diameter
                                                                                  9/25/2008    No flow                      V         5' long basin
                                                                                  10/20/2008   No flow                      V         Small puddle approx. 3' ft long
                                                                                  11/17/2008   No flow                      V         Small puddle approx. 3' ft long
                                                                                  12/19/2008   No flow                      V         Small puddle approx. 3' ft long
                                                                                  1/23/2009    No flow                      V         Small puddle approx. 3' ft long




    1232/07/Tbl11_MonitoringDataSprings_Seeps/12Feb2009
                                                                            TABLE 1. MONITORING DATA FOR SPRINGS AND SEEPS
                                                                                        ROSEMONT PROJECT AREA
                                                                                          PIMA COUNTY, ARIZONA
                                                                                                Page 3 of 8


                                                          UTM Coordinates
                                                             (NAD83)
 Spring or Seep                                     UTM-East      UTM-North        Date of                                   Data
                                                                                                                                  a
   Location              Spring Identifier          (meters)       (meters)      Measurement             Approximate Flow   Source                               Remarks

(D-18-16)17acc      SC-2                              526,052        3,526,106    11/1/2007    No flow - Moist wet ground   M&A
                                                                                  1/18/2008    No flow - Small puddle       M&A
                                                                                  2/14/2008    No flow - Small puddle       M&A       Found second small area of standing water downstream
                                                                                  3/18/2008    Dry                          V
                                                                                   5/2/2008    Dry                          V
                                                                                  5/19/2008    Dry                          V
                                                                                  6/18/2008    Dry                          V
                                                                                  7/29/2008    Stream flowing               V         Could not distinguish flow from spring/stream
                                                                                  8/22/2008    No visible flow              V         10' long ponded area
                                                                                  9/25/2008    Dry                          V
                                                                                  10/20/2008   Dry                          V
                                                                                  11/17/2008   Dry                          V
                                                                                  12/16/2008   Dry                          V
                                                                                  1/23/2009    Dry - No flow                V         Puddles present from recent rain

(D-18-16)19abb      Fig Tree Spring                   523,955        3,525,037    1/17/2008    No flow - Soil moist         M&A
                                                                                  2/13/2008    No flow - Soil moist         M&A
                                                                                  3/19/2008    Dry                          V
                                                                                  4/22/2008    Dry                          V
                                                                                  5/20/2008    Dry                          V
                                                                                  6/19/2008    Dry                          V
                                                                                  7/30/2008    Slight seep                  V
                                                                                  8/25/2008    Moist - Wet ground           V         Slow rain at the time
                                                                                  9/26/2008    Dry                          V
                                                                                  10/21/2008   Dry                          V
                                                                                  11/12/2008   Drip - one drip per 20 sec   V
                                                                                  12/19/2008   Drip - one drip per 20 sec   V         3' long basin
                                                                                  1/22/2009    Flowing 0.1 gpm              V




    1232/07/Tbl11_MonitoringDataSprings_Seeps/12Feb2009
                                                                            TABLE 1. MONITORING DATA FOR SPRINGS AND SEEPS
                                                                                        ROSEMONT PROJECT AREA
                                                                                          PIMA COUNTY, ARIZONA
                                                                                                Page 4 of 8


                                                          UTM Coordinates
                                                             (NAD83)
 Spring or Seep                                     UTM-East      UTM-North        Date of                                          Data
                                                                                                                                         a
   Location              Spring Identifier          (meters)       (meters)      Measurement              Approximate Flow         Source                              Remarks

(D-18-16)19ccd(?) MC-2                                523,727        3,523,673    11/15/2006   No flow - Ground moist              M&A
                                                                                  6/25/2007    No flow - Ground moist              M&A
                                                                                  10/31/2007   Very low flow - Dry within 15'      M&A
                                                                                  1/17/2008    Very low flow - Dry within 20'      M&A
                                                                                  2/13/2008    Very low flow - Dry within 20'      M&A
                                                                                  3/19/2008    Low flow - Dry within 50'           V
                                                                                  4/22/2008    Ponded and low flow ~0.1 gpm        V         Sample ID: GF04220802
                                                                                  5/16/2008    Ponded and very low flow <0.1 gpm   V
                                                                                  6/17/2008    No flow                             V         1' diam puddle
                                                                                  7/23/2008    Ponded and very low flow <0.1 gpm   V         Sample ID: JRK7232, Stream is flowing
                                                                                  8/22/2008    No flow                             V         1-2' diam puddle
                                                                                  9/26/2008    No flow                             V         1' diam puddle
                                                                                  10/21/2008   Flowing                             V         Multiple pools, sample ID mew10293
                                                                                  11/12/2008   No flow - Ground damp               V         Adjacent stream flowing
                                                                                  12/17/2008   No flow - Ground damp               V         Stream no longer flowing
                                                                                  1/21/2009    0.48 gpm                            V

(D-18-16)30abc      MC-1                              524,152        3,523,207    11/16/2006   Flowing - Trickle                   M&A
                                                                                  12/7/2006    Dry - Small seep                    M&A
                                                                                  6/25/2007    Dry                                 M&A
                                                                                  10/31/2007   Small seep                          M&A
                                                                                  1/17/2008    Dry                                 M&A
                                                                                  2/13/2008    Dry                                 M&A
                                                                                  3/19/2008    Dry                                 V
                                                                                  4/21/2008    Dry                                 V
                                                                                  5/16/2008    Dry                                 V
                                                                                  6/17/2008    Dry                                 V
                                                                                  7/23/2008    Flowing ~ 1 gpm                     V         Sample ID: JRK7231
                                                                                  8/22/2008    Flowing ~ 1 gpm                     V
                                                                                  9/26/2008    Flowing ~ 1 gpm                     V
                                                                                  10/21/2008   Flowing - Cattle trough is full     V         Pool under tree - Sample ID mew10292
                                                                                  11/12/2008   Flowing ~0.1 gpm                    V         Pool extends ~8' from tree
                                                                                  12/17/2008   Flowing ~0.1 gpm                    V         Pool extends ~8' from tree
                                                                                  1/21/2009    0.34 gpm                            V




    1232/07/Tbl11_MonitoringDataSprings_Seeps/12Feb2009
                                                                            TABLE 1. MONITORING DATA FOR SPRINGS AND SEEPS
                                                                                        ROSEMONT PROJECT AREA
                                                                                          PIMA COUNTY, ARIZONA
                                                                                                Page 5 of 8


                                                          UTM Coordinates
                                                             (NAD83)
 Spring or Seep                                     UTM-East      UTM-North        Date of                                              Data
                                                                                                                                             a
   Location              Spring Identifier          (meters)       (meters)      Measurement            Approximate Flow               Source                                 Remarks

(D-18-16)27ddd      Questa Spring                     529,473        3,522,056    10/31/2007   Ponded and flowing                      M&A
                                                                                  1/18/2008    Ponded and frozen around area           M&A
                                                                                  2/12/2008    Ponded and low flow                     M&A
                                                                                  3/17/2008    Ponded and low flow                     V
                                                                                  4/23/2008    Ponded and low flow ~0.1 gpm            V         Sample ID: GF04230801
                                                                                  5/16/2008    Ponded and low flow ~0.1 gpm            V
                                                                                  6/18/2008    Dry at surface                          V         Trickle flowing from sump
                                                                                  7/29/2008    Dry at surface                          V         Trickle flowing from sump. Sample ID: JRK7293
                                                                                  8/28/2008    Wet at surface                          V         Trickle flowing from sump
                                                                                  9/29/2008    Dry at surface                          V         Trickle flowing from sump
                                                                                  10/21/2008   Seep                                    V         Trickle flowing from sump. Sample ID: GF10212
                                                                                  11/13/2008   Seep                                    V         Trickle flowing from sump
                                                                                  12/15/2008   Seep                                    V         Trickle flowing from sump
                                                                                  1/23/2009    0.1 gpm                                 V

(D-18-16)29bda      McCleary Dam                      525,414        3,523,023     9/4/2008    Flow under & over dam - Est 10-20 gpm   M&A       Flow probably affected by recent rainfall/runoff
                                                                                  9/29/2008    Flow under dam 2-3 gpm                  V
                                                                                  10/30/2008   Flow under dam 2-3 gpm                  V         Sample ID: GF10301
                                                                                  11/12/2008   Flow under dam ~2 gpm                   V         pH=7, EC=1,100, T=21.9°C
                                                                                  12/17/2008   Flow under dam ~2 gpm                   V         pH=6.84, EC=1,061, T=10.2°C
                                                                                  1/21/2009    0.79 gpm                                V         pH=7.6, EC=1,104, T=8.4°C

(D-18-16)32bbc      Rosemont Spring                   524,836        3,521,392    10/31/2008   Flowing                                 M&A
                                                                                   1/18/2008   Ponded and stagnant - Some low flow     M&A
                                                                                   2/13/2008   Ponded and stagnant - Some low flow     M&A
                                                                                   3/17/2008   Ponded and low flow                     V
                                                                                   4/23/2008   Ponded and low flow ~0.1 gpm            V         Sample ID: GF04230802
                                                                                   5/20/2008   Ponded and low flow ~0.1 gpm            V
                                                                                   6/16/2008   No flow, 6' long damp spot              V
                                                                                   7/29/2008   Flowing ~0.5 gpm                        V         Sample ID: JRK7292
                                                                                   8/22/2008   Flowing <0.5 gpm                        V         Flow slightly smaller than in July 2008
                                                                                   9/29/2008   Flowing <0.5 gpm                        V
                                                                                  10/20/2008   Flowing 0.1 gpm                         V         Sample ID: mew10213
                                                                                  11/11/2008   Flowing 0.1 gpm                         V         Photo taken 11/12/08
                                                                                  12/10/2008   <1 gpm                                  V
                                                                                   1/22/2009   0.69 gpm                                V




    1232/07/Tbl11_MonitoringDataSprings_Seeps/12Feb2009
                                                                            TABLE 1. MONITORING DATA FOR SPRINGS AND SEEPS
                                                                                        ROSEMONT PROJECT AREA
                                                                                          PIMA COUNTY, ARIZONA
                                                                                                Page 6 of 8


                                                          UTM Coordinates
                                                             (NAD83)
 Spring or Seep                                     UTM-East      UTM-North        Date of                                               Data
                                                                                                                                              a
   Location              Spring Identifier          (meters)       (meters)      Measurement             Approximate Flow               Source                                Remarks

(D-18-15)35bdc      Ruelas Spring                     520,244        3,521,274    4/28/2008    Dry                                      V         Could not find water, although healthy stand of willow is present
                                                                                  5/22/2008    Dry                                      V
                                                                                  6/20/2008    Dry                                      V
                                                                                  7/28/2008    Dry                                      V
                                                                                  8/22/2008    Low flow at slopes - Ponding in places   V         Stream starts very close to spring and flows for ~30 feet
                                                                                  9/26/2008    Dry                                      V
                                                                                  10/20/2008   Flowing                                  V         Three small pools present, Sample ID: mew10271
                                                                                  11/14/2008   Damp - No flow                           V
                                                                                  12/10/2008   Dry                                      V
                                                                                  1/21/2009    Damp - No flow                           V

(D-18-16)9abc       Mulberry Spring                   527,245        3,527,984     5/2/2008    No flow - Small puddle approx 5' long    V
                                                                                  5/19/2008    No flow - Small puddle approx 1' long    V
                                                                                  6/18/2008    Slight trickle to puddle                 V
                                                                                  7/28/2008    Stream flowing                           V         Could not distinguish flow from spring/stream
                                                                                  8/22/2008    Trickle                                  V         Small puddle approx. 1' long
                                                                                  9/25/2008    Trickle                                  V         2' diameter basin
                                                                                  10/20/2008   Seep                                     V         2' long basin
                                                                                  11/17/2008   Seep                                     V         2' long basin
                                                                                  12/16/2008   Seep                                     V         1' diam basin
                                                                                  1/23/2009    0.03 gpm                                 V

(D-18-16)9cbd       Crucero Spring                    527,332        3,527,348    7/28/2008    Stream flowing                           V         Could not distinguish flow from spring/stream
                                                                                  8/22/2008    Seepage along stream                     V         Stream flowing in places downstream from spring at ~0.5 gpm
                                                                                  9/25/2008    Trickle                                  V         2' long basin – New location (dry at old location)
                                                                                  10/20/2008   Dry                                      V
                                                                                  11/17/2008   Dry                                      V
                                                                                  12/16/2008   No flow                                  V         Stream bed wet
                                                                                  1/23/2009    0.61 gpm                                 V

(D-18-16)9dbb       Lower Mulberry Spring             527,513        3,526,870     5/2/2008    No flow - Small puddle approx. 2' diam   V
                                                                                  5/19/2008    Moist spot                               V
                                                                                  6/18/2008    Moist spot                               V
                                                                                  7/28/2008    Stream flowing                           V         Could not distinguish flow from spring/stream
                                                                                  8/22/2008    Trickle                                  V         Small pond 1' long
                                                                                  9/25/2008    Seep                                     V         1' diameter basin
                                                                                  10/20/2008   Seep                                     V         Wet spot
                                                                                  11/17/2008   Seep                                     V         Wet spot, no pool
                                                                                  12/16/2008   No flow                                  V         Wet spot, no pool
                                                                                  1/23/2009    0.08 gpm                                 V




    1232/07/Tbl11_MonitoringDataSprings_Seeps/12Feb2009
                                                                            TABLE 1. MONITORING DATA FOR SPRINGS AND SEEPS
                                                                                        ROSEMONT PROJECT AREA
                                                                                          PIMA COUNTY, ARIZONA
                                                                                                Page 7 of 8


                                                          UTM Coordinates
                                                             (NAD83)
 Spring or Seep                                     UTM-East      UTM-North        Date of                                               Data
                                                                                                                                              a
   Location              Spring Identifier          (meters)       (meters)      Measurement             Approximate Flow               Source                               Remarks

(D-18-16)16bba      Papago Spring                     526,500        3,526,783     5/2/2008    No flow - Small puddle approx. 2' diam   V
                                                                                  5/19/2008    Moist spot                               V
                                                                                  6/18/2008    Dry                                      V
                                                                                  7/28/2008    Stream flowing                           V         Could not distinguish flow from spring/stream
                                                                                  8/22/2008    Flowing 0.1 gpm                          V         Stream seems to originate at spring
                                                                                  9/25/2008    Trickle                                  V         1' diam basin
                                                                                  10/20/2008   Seep                                     V         1' diam basin
                                                                                  11/17/2008   Seep                                     V         1' diam basin
                                                                                  12/16/2008   No flow - Damp spot                      V
                                                                                  1/23/2009    1.7 gpm                                  V

(D-19-15)1bbb       SW                                521,547        3,520,154    2/13/2008    No flow - Soil is moist                  M&A
                                                                                  3/19/2008    No flow - Soil is moist                  V
                                                                                  4/28/2008    No flow - Soil is dry                    V
                                                                                  5/22/2008    No flow - Soil is dry                    V
                                                                                  6/20/2008    Dry                                      V
                                                                                  7/28/2008    Dry                                      V
                                                                                  8/22/2008    Dry                                      V
                                                                                  9/26/2008    Seep                                     V         4" diam seep at bottom base of casing or barrel
                                                                                  10/20/2008   Seep                                     V         Damp spot
                                                                                  11/18/2008   Dry                                      V
                                                                                  12/10/2008   Dry                                      V
                                                                                  1/21/2009    Damp - No flow                           V

(D-19-15)1bdb       Locust Spring                     521,861        3,519,699    6/20/2008    Dry                                      V
                                                                                  7/31/2008    Dry                                      V
                                                                                  8/22/2008    Moist spot - No flow                     V
                                                                                  9/26/2008    Dry                                      V
                                                                                  10/20/2008   Damp                                     V
                                                                                  11/18/2008   No flow - 1' diam pool                   V
                                                                                  12/10/2008   Stream flowing from HC-1B pump test      V
                                                                                  1/21/2009    Damp - No flow                           V




    1232/07/Tbl11_MonitoringDataSprings_Seeps/12Feb2009
                                                                               TABLE 1. MONITORING DATA FOR SPRINGS AND SEEPS
                                                                                           ROSEMONT PROJECT AREA
                                                                                             PIMA COUNTY, ARIZONA
                                                                                                   Page 8 of 8


                                                             UTM Coordinates
                                                                (NAD83)
    Spring or Seep                                     UTM-East      UTM-North        Date of                                  Data
                                                                                                                                    a
      Location              Spring Identifier          (meters)       (meters)      Measurement            Approximate Flow   Source                               Remarks

(D-19-15)1dbd          Deering Spring                    522,588        3,519,270    4/28/2008    Flowing ~0.1 gpm            V         Sample ID: MEW04290801
                                                                                     5/20/2008    Flowing ~0.1 gpm            V
                                                                                     6/17/2008    Flowing ~0.1 gpm            V
                                                                                     7/29/2008    Flowing ~0.1 gpm            V         Sample ID: JRK7291
                                                                                     8/22/2008    Flowing ~0.1 gpm            V
                                                                                     9/26/2008    Flowing 0.75 gpm            V         Noticeably greater flow than previously observed.
                                                                                     10/21/2008   Flow <1 gpm                 V         Sample ID: mew10212
                                                                                     11/18/2008   Flow ~1 gpm                 V
                                                                                     12/10/2008   Flow > 1 gpm                V         Tank is full
                                                                                     1/21/2009    0.63 gpm                    V


                Note: < = Less than
                      --- = Not available

a
    Data Source:       M&A = Errol L. Montgomery & Associates
                       V = Verdad Group LLC




       1232/07/Tbl11_MonitoringDataSprings_Seeps/12Feb2009
                     APPENDIX J

                      UPDATED
GROUNDWATER MONITORING PROGRAM
                                                                                     520,000                                                                                                                                    525,000                                                                                                                            530,000
                                                                                       R. 15 E.                                                                                                                                                                                                              R. 16 E.



                                                                                                                                                                                                                                                                                                                                                                                                            EXPLANATION
                                                                                                                                                                                                                                                                                                                                                                                                                   Powerline
                                                                                                                                                                                                                                                                                                                                                                                                                   Roads

                                                                                                                                                                                                                                                                                                                                                                                                                  Rosemont Fee Land

                                                                                                                                                                                                                                                                                                                                                                                                                  Rosemont Patented Mining Claims

                                                                                                                                                                                                                                                                                                                                                                                                                  Santa Rita Experimental Range Boundary


                                                                                                                                                                                                                                                                                                                                                                                                            Land Ownership Categories
                                                                                                                                                                                                                                                                                                                                                                                                                  Bureau of Land Management
                                                                                                                                                                                                                                                                                                                                              RP-6
                                                                                                                                                                                                                                                                                                                                                                             RP-7
                                                                                                                                                                                                                                                                                                                                                                                                                  Forest Land
                                                                                                                                                                                                                                                                                                                                                                                                                  Private Land
       3,525,000                                                                                                                                                                                                                                                                                                                                                                                3,525,000         State Trust Land
                                                                                                                                                                                                                                                                                                                               HV-2

                                                                                                                                                                                                                                                                                          21bda[DH-1455]
                                                                                                                                                                                                                                                                                                                                     21ada

                                                                                                                                                                                                                                                                                                          HV-1                                                                                      Well Symbols
               T.                                                                                                                                                                                                                                                                                                                                                                              T.
                         Sa
               18
               S.             nt
                                   a
                                                                                                                                                                                                                                                                                                                                                                                               18
                                                                                                                                                                                                                                                                                                                                                                                               S.             Existing Pit Characterization Well
                                       Ri                                                                                                                                                                                                                                                                                                                                            RP-8
                                            ta                                                                                                                                                                                               HC-4B
                    Helv                         Ro                                                                                                                                                                                                                                                                                                                                                           Other Existing Water Well
                         e                            ad                                                                                                                                                                                                 HC-4A
                             tia R                                                                                                                                                          Approximate
                                       o ad
                                                                                                                                                                                              Extent of                                                                                                                                      22dbc
                                                                                                                                                                                 MC-2      Plant Boundary
                                                                                                                                                                                                                                                                                                                                                                                    23dcc1,2
                                                                                                                                                                                                                                                                                                                                                                                                              Existing Piezometer
                                                                                                                                                           HC-5B      HC-5A                                                                                                                                                    21dcd
                                                                                                                                                                                                                                                                                                                 RP-2A
                                                                                                                                                                                                                                                                                                                                                                                                              Spring or Seep
                                                                                                                                                                                                                                                                                                                 RP-2C       RP-2B
                                                                                                                                                                                           MC-1
                                                                                                                                                                                                                              29bbd[P-899]                                                     C-6
                                                                                                                                                                                                           C-3                                    C-13                           C-12                                                                                                                         Proposed Geotechnical Characterization Hole
                                                                                                                                                                                               C-1
                                                                                                                                                                                                                   C-4                                             C-5
                                                                                                                                                                   PC-8
                                                                                                                                                                                                                                                                                                      Approximate Extent of
                                                                                                                                                                                                                                                                                                        Waste Rock and
                                                                                                                                                                                                                                                                                                                                                                                                              Proposed Characterization Well (50± feet depth)
                                                                                                                                  PC-9                                                                                                                                                                Tailing Disposal Area

                                                                                                                                                                                                                                                                             C-9
                                                                                                                                                                                                                                                                                                                                                                                                              Proposed Characterization Well (250± feet depth)
                                                                                                                                                                          PC-1
                                                                                                                                                                                        PC-7
                                                                                                                                                                                                                      HC-3B
                                                                                                                                                                                                                               HC-3A
                                                                                                                                                                                                                                                                                                                                                                                                              Proposed Characterization Well (500± feet depth)
                                                                                                                                                                          PC-2                                                                       29cda[G-35]


                                                                                                         Approximate                                       36aaa     30cdd[A-886]
                                                                                                                                                                                                     C-2                                                                                                                                             RP-9                                                     Proposed Characterization Well (1,000± feet depth)
                                                                                                          Extent of
                                                                                                         Ultimate Pit
                                                                                                                                                                                                                                                                         RP-3B
                                                                                                                                                                                                                                                                                                                                                                                                              Proposed Pit Characterization Well (2,000± feet
                                                                                                                                                                     PC-3                                                                                                              RP-3A                                                                                                                  depth) and Piezometer Site
                                                                                                                                         PC-10
                                                                                                                                                              AR-2050
                                                                                                                                                                                                                                                                                 C-7
                                                                                                                                                                                                                                           32bdc[Gayler]

                                                                                                                                                              31cbb
                                                                                                                                                    PC-4                                                                                  RP-4A

                                                                                                                                                                                PC-6
                                                                                                                                                                                                                                          RP-4B
                                                                                                  HC-6

                                                                                                                                                                                                            32ccb[DH-1537]

                                                                                                                                             PC-5                         C-8

                                                                                                                                                                                                                                                             C-11
                                                                                                                                                                                                              HC-2A
                                                                                                                        HC-1A
       3,520,000                                                                                                                HC-1B                                                                                                                                                                                                                                                           3,520,000
                                                                                                                                                                   C-14                                    HC-2B                                                                                                                                                                                                      0    1,000 2,000 3,000 4,000
                                                                                                                                                                                                                                                                                                                        83
                                                                                                                                                                                                                                                                                                                                                                                                                                 Feet



                                                                                                                                                                                                                                                                                                     4dbb[DH-1541]
                                                                                                                                                                                                                                                                                                                                                                                                            DRAFT
                                                                                                                                                                            C-15                                                                                                                                                                            2ccd
                                                                                                                                                             RP-5B
                                                                                                                                                                                RP-5A
               T.                                                                                                                                                                                                                                                                                                                                                                              T.
               19                                                                                                                                                                                                                                                                                                                                                                              19
               S.                                                                                                                                                                                                                                                                                                                                                                              S.




                                                                   Box Canyon Road                                                                                                                                                                                                                                                                                                                                  EXISTING AND PROPOSED
                                                                                                                                                                                                                                                                                                                                                                                                                GROUNDWATER CHARACTERIZATION
                                                                                                                                                                                                                                                                                                                                                                                                                      AND MONITOR WELLS
                                                                                                                                                                                                                                                                                                                                                                                                                                                         2007




                                                                                                                                                                                                                                                                                                                                                                                                              February 5, 2008                       FIGURE 1

                                                                                      R. 15 E.                                                                                                                                                                                                              R. 16 E.
                                                                                     520,000                                                                                                                                    525,000                                                                                                                            530,000




TUC-GIS\1232.01\NAD83_UTM_maps\WellLocation\Welloc_MineArea\5Feb2008
                             APPENDIX K

SUMMARY OF LABORATORY CHEMICAL ANALYSES
                  FOR WELLS AND SPRINGS
                                                                                          TABLE 1. SUMMARY OF RESULTS OF LABORATORY CHEMICAL ANALYSES FOR
                                                                                            COMMON CONSTITUENTS AND ROUTINE PARAMETERS IN WATER SAMPLES
                                                                                                       ROSEMONT PROJECT, PIMA COUNTY, ARIZONA
                                                                                                                     Page 1 of 4


                                                                                                                                                                            a
                                                                                                                                       COMMON CONSTITUENTS
                                                                                                                                         (milligrams per liter)                                                                                                   FIELD PARAMETERS


                                  DATE                                                                                              Total                                   NO3/NO2                 Hardness                                  EC - Lab       TEMP                    EC
   SAMPLE SOURCE                SAMPLED              Ca          Mg           Na           K            HCO3         CO3          Alkalinity        Cl          SO4          as N       F           as CaCO3       TDS         pH - Lab        (μS)b          o
                                                                                                                                                                                                                                                                  C        pH       (μS)
                                                                                                                                             Water Quality Standards
Natl. Maximum Contaminant Level                      ---          ---         ---          ---           ---         ---              ---           ---         ---             10      4.0            ---         ---            ---            ---
AZ Aquifer Water Quality Standards                   ---          ---         ---          ---           ---         ---              ---           ---         ---             10      4.0            ---         ---            ---            ---


TTBH-08-08C                      23-Jun-08                 116      22.6        88.7         15.2              310          <2              254           16*         215        0.05         <1             383         710            8.2        1,030          27.8      7.39      1,033

Cienega Creek
                                                                                                                                                                                                                                                                                b
                                 24-Jun-08                 186      50.1        71.5             4.8           323          6*              275       12.2            486       0.03*         0.6            671    1,050               8.3        1,400              25   6.23       1,100

Upper Cienega Creek              24-Jun-08             81.2         16.2        67.8             2.7           317     15.6                 286       10.4        86.2          0.09*       0.5*             269         460            8.6            750        28.2      7.18           709
Upper Cienega Creek dup          24-Jun-08             81.8         16.3        68.6             2.8           327     13.2                 289       10.7        86.3           0.12       0.5*             271         460            8.5            753        28.2      7.18           709

Deering Spring                   29-Apr-08             93.1         17.0        10.0             0.8*          382          <2              313           7.4     23.2           0.52     0.2*               302         340            8.0            652        23.2      7.15           638
Deering Spring                   29-Jul-08             117          16.5         9.7             0.9*          390          <2              320           7.1     22.5           1.29     <0.1               360         380            8.1            668        34.6      8.05           702

G-35                             29-Apr-08             43.1             2.3         105          1.5*          110          <2               90           7.2         235       0.02*        0.6             117         460            8.3            712        23.0      7.29           684
G-35                             28-Jul-08             43.6             2.5         104          1.9*          109          <2               91           7.1         211       0.04*       0.5*             119         470            8.3            717        27.2      7.60           685
G-35 dup                         28-Jul-08             43.7             2.3         106          1.5*          109          <2               90           7.1         205       0.04*       0.5*             119         460            8.3            717        27.2      7.60           685

HC-1A                            19-Aug-08             62.1         16.0        27.3             1.7*          298          <2              244       12.5            6.4        0.67         1.4            221         290            8.2            564        20.4      7.54           510

HC-1B                            15-Aug-08             48.5         14.7        35.6             1.6*          238         2.4*             200       15.0        16.4           0.31         1.8            182         280            8.3            467        21.2      7.76           472
HC-1B                            29-Nov-08             52.1         15.4        24.4             1.8*          259          <2              212       12.0         6.4           0.36         2.1            194         260            8.0            432        21.0      7.22           445
HC-1B                            08-Dec-08             55.0         16.5        25.2             1.6*          243          3.6             205       12.0           6           0.41         2.0            205         270            8.4            473        20.9      7.30           462
HC-1B                            15-Dec-08             54.1         16.3        24.3             1.5*          251          <2              206       12.2         7.1           0.44         1.9            202         260            8.2            417        21.0      7.29           457
HC-1B                            18-Dec-08             57.7         17.3        27.0             1.7*          253          <2              207       12.2         7.7           0.42         1.9            215         240            8.2            463        22.1      7.30           455

HC-2A                            03-Jul-08             33.3             7.8     73.2             1.3*          211         6.6              184       23.5        43.2           0.77         0.5            115         320            8.6            530        22.4      7.66           516

HC-2B                            08-Jul-08             33.8             7.0     81.9             2.3           239         7.2              208       12.1        47.5           0.38       0.4*             113         320            8.5            553        22.9      7.57           540

HC-3A                            11-Sep-08             91.1         17.6        18.5             2.0           290          <2              238       20.3        51.3           0.16       0.4*             300         360            7.9            605        23.4      7.12           626

HC-3B                            04-Sep-08             76.1         18.8        34.1             2.5           276         5.4              236       18.7        55.8           0.11       0.4*             267         360            8.4            598        22.1      7.40           615

HC-3C                            02-Sep-08             43.8             5.5     67.9             2.4           179         4.2              154           7.2     90.1           0.11         0.5            132         330            8.4            503        27.7      7.65           573

HC-4A                            22-Jul-08             73.1         17.0        41.3             1.5*          361          <2              296       10.7            8.3        0.70       0.3*             253         340            8.2            621        21.1      7.22           606

HC-4B                            17-Jul-08             28.6             7.7     82.7             2.9           273         6.6              235           12*         16*       <0.02         <1             103         300            8.5            540        27.7      8.08           520

HC-5A                            18-Jun-08                 124      31.4        18.0             2.3           257          <2              211       16.8            190        0.48         1.4            439         610            8.0            862        20.1      7.17           798
HC-5A                            29-Nov-08                 119      30.3        16.0             2.4           267          <2              219        13             223        0.38         1.6            422         560            8.0            773        19.4      7.10           803
HC-5A                            08-Dec-08                 127      32.8        16.9             2.3           251          <2              207       12.4            195        0.39         1.5            452         600            8.3            820        19.1      7.06           828
HC-5A                            15-Dec-08                 124      32.4        16.1             2.4           250          <2              205       12.6            208        0.41         1.4            443         580            8.2            770        19.2      7.04           831
HC-5A                            18-Dec-08                 131      34.5        17.8             2.7           250          <2              205       12.6            206        0.37         1.2            469         580            8.1            843        19.2      7.04           837

HC-5B                            24-Jun-08             85.2         21.9            360          2.7       98.8            4.2               88           60          850       <0.02         3*             303    1,480               8.5        2,040          26.0      8.30      1,972




          1232/07/DrillingReport/Tbl6_CommonConstituents.xls/11Feb2009
                                                                                           TABLE 1. SUMMARY OF RESULTS OF LABORATORY CHEMICAL ANALYSES FOR
                                                                                             COMMON CONSTITUENTS AND ROUTINE PARAMETERS IN WATER SAMPLES
                                                                                                        ROSEMONT PROJECT, PIMA COUNTY, ARIZONA
                                                                                                                      Page 2 of 4


                                                                                                                                                                             a
                                                                                                                                        COMMON CONSTITUENTS
                                                                                                                                          (milligrams per liter)                                                                                                      FIELD PARAMETERS


                                  DATE                                                                                               Total                                   NO3/NO2                    Hardness                                  EC - Lab       TEMP                  EC
   SAMPLE SOURCE                SAMPLED              Ca          Mg           Na            K            HCO3         CO3          Alkalinity        Cl          SO4          as N          F           as CaCO3       TDS         pH - Lab        (μS)b          o
                                                                                                                                                                                                                                                                      C      pH       (μS)
                                                                                                                                              Water Quality Standards
Natl. Maximum Contaminant Level                      ---          ---         ---           ---           ---         ---              ---           ---         ---             10         4.0            ---         ---            ---            ---
AZ Aquifer Water Quality Standards                   ---          ---         ---           ---           ---         ---              ---           ---         ---             10         4.0            ---         ---            ---            ---


HV-1                             18-Sep-07             85.4         12.3        95.3               2.0          348      <2                  285        19         180            <0.1          0.4*             264         590            8.2            905        23.1    7.47           860
HV-1                             18-Jan-08             91.2         14.4        90.7              1.3*          334      <2                  274        17         160            0.10          0.3*             287         570            8.1            870        23.5    7.37           849
HV-1                             14-Feb-08             82.9         13.4        89.4              1.5*          320    10.2*                 279        19         160             0.5           0.5             262         530            8.5            829        24.2    7.45           843
HV-1                             24-Apr-08             74.9         11.4        93.6              1.3*          307      <2                  252        18         138            0.22           0.5             234         500            8.1            798        25.8    7.47           779
HV-1 dup                         24-Apr-08             73.2         11.1        92.9              1.3*          307      <2                  252        17         139           0.02*          0.5*             228         500            8.1            803        25.8    7.47           779
HV-1                             24-Jul-08             45.1          5.3        105               1.1*          261      12                  234       16.0        91.7           0.13           0.7             134         430            8.5            708        30.0    7.85           649

HV-2                             18-Sep-07             89.8             6.4     93.9              1.3*          316      <2                  259        49             110        4.88            0.9            251         520            8.2            890        21.7    6.97           840
HV-2                             18-Jan-08              101             8.7     83.2              1.0*          322      <2                  264        42              90        3.64            0.8            288         520            8.2            841        20.2    7.71           836
HV-2                             14-Feb-08             98.1             8.1     83.0              1.3*          295     4.2*                 249        54             100        3.88            0.8            278         510            8.3            800        21.0    7.89           845
HV-2                             24-Apr-08             95.6             8.2     83.2              0.8*          301      <2                  247        52              99        4.31            0.8            272         510            8.1            840        22.1    7.67           812
HV-2                             24-Jul-08             103              7.9     91.4              1.2*          268     10.8                 239       57.0            138        4.62            0.8            290         590            8.3            951        27.3    7.57           873

MC-1 Spring                      23-Jul-08             27.5             8.1         7.3           5.0            70          <2               57           4.9     15.2               4.0       0.3*             102         160            8.1            189        29.7    6.91           186

MC-2 Spring                      22-Apr-08                 142      37.4        28.8              3.8           364      <2                  298           17      200            0.16            1.6            509         690            8.2          907          19.6    7.62        879
MC-2 Spring                      23-Jul-08                 155      49.0        40.2              3.5           433     12.6                 377           8.9     67.2           1.19            1.2            589         320            8.0        1,700          22.1    6.96      1,360

P-899                            13-Feb-08                 128      46.5        22.5              4.0           159         3.6*             135            4*         390       <0.02            1.5            511         710            8.4            947        21.5    7.15           963
P-899                            21-Apr-08                 130      46.7        22.2              7.5           159          <2              130            4*         340       0.03*            1.5            517         750            8.0            940        23.0    8.56           928
P-899                            25-Jul-08                 128      46.6        22.2              3.8           149         5.4*             131           3.7         369       0.09*            1.4            511         730            8.3            991        24.3    7.41           923

PC-1                            25-May-07              82.2             9.5     10.7              1.9           212          <2              175            8          30*        0.69            0.8            244         300            8.3            465        22.0    7.75           469

PC-2                            16-May-07              87.0         20.6        20.3              2.6           194          <2              159           11          170        0.38            1.2            302         410            8.1            613        23.7    7.72           604
PC-2                            21-Apr-08              72.5         20.3        12.0              2.2           168          <2              138           22          110        0.16            1.5            265         350            8.1            504        22.9    8.96           509
PC-2                             25-Jul-08             68.2         19.1        12.1              2.2           165           6              144           6.9         109       <0.02            <2             249         350            8.4            552        21.7    8.28           501

PC-3                             01-Jun-07                 192      33.4        56.3              5.0           123          <2              101            5          610        0.09            1.2            617    1,040               8.0        1,240          24.2    7.66      1,220

PC-4                            18-May-07              59.6         17.9        32.9              4.1           264          <2              216           12          50*        0.63          0.4*             222         320            8.1            560        21.5    7.76           525

PC-5                             21-Oct-08             72.0         10.7             6.4          1.6*       214            <2               175           7.5     42.2           0.48            0.7            224      260               8.2          423        27.7       7.32        439
PC-5-922-UP                      21-Oct-08             72.3         10.8             6.5          1.6*       215            <2               176           7.3     34.2           0.55            0.8            225      270               8.3          426        27.4       7.32        434
PC-5-1516-LP                     23-Oct-08              162         15.9            186            3.8      40.3            <2                33           17*     824            0.03             1*            470    1,240               8.0        1,520        23.8       8.33     1,675
PC-5                             29-Nov-08             71.9         10.5             6.3          1.8*       226            <2               185           7.5     37.9           0.54            0.9            223      260               8.1          425      ---        ---       ---
PC-5                             08-Dec-08             75.5         11.1             7.6          1.6*       204            3.0              172           7.4      37            0.55            0.8            234      270               8.4          440        26.9       7.24        447
PC-5                             15-Dec-08             72.7         10.5             6.5          1.6*       209            <2               171           7.6     38.1           0.57            0.8            225      270               8.2          401        26.9       7.26        448
PC-5                             18-Dec-08             77.9         11.3             7.6          1.8*       214            <2               175           7.6     38.5           0.55            0.8            241      250               8.2          440        27.0       7.27        432

PC-6                             12-Oct-08                 204      21.9        30.5              3.5           206          <2              169           8.6         441        0.65            0.7            600         900            8.1        1,120          21.4    7.40      1,153
PC-6-522-UP                      13-Oct-08                 194      21.1        30.0              3.1           201          <2              165           8.4         425        0.65            0.7            572         850            8.3        1,110          21.8    6.89      1,105
PC-6-1002-MP                     14-Oct-08                 209      22.4        33.5              3.2           201          <2              165            8*         444        0.61            <1             615         870            8.0        1,140          20.6    7.27      1,138
PC-6-1502-LP                     16-Oct-08                 203      20.7        34.0              3.4           212          <2              174           8.3         457        0.67            0.7            593         900            8.1        1,130          22.3    7.30      1,161




          1232/07/DrillingReport/Tbl6_CommonConstituents.xls/11Feb2009
                                                                                           TABLE 1. SUMMARY OF RESULTS OF LABORATORY CHEMICAL ANALYSES FOR
                                                                                             COMMON CONSTITUENTS AND ROUTINE PARAMETERS IN WATER SAMPLES
                                                                                                        ROSEMONT PROJECT, PIMA COUNTY, ARIZONA
                                                                                                                      Page 3 of 4


                                                                                                                                                                              a
                                                                                                                                        COMMON CONSTITUENTS
                                                                                                                                          (milligrams per liter)                                                                                                    FIELD PARAMETERS


                                  DATE                                                                                               Total                                    NO3/NO2                 Hardness                                  EC - Lab       TEMP                  EC
   SAMPLE SOURCE                SAMPLED              Ca          Mg            Na           K            HCO3         CO3          Alkalinity        Cl          SO4           as N       F           as CaCO3       TDS         pH - Lab        (μS)b          o
                                                                                                                                                                                                                                                                    C      pH       (μS)
                                                                                                                                              Water Quality Standards
Natl. Maximum Contaminant Level                      ---          ---          ---          ---           ---         ---              ---           ---         ---              10      4.0            ---         ---            ---            ---
AZ Aquifer Water Quality Standards                   ---          ---          ---          ---           ---         ---              ---           ---         ---              10      4.0            ---         ---            ---            ---


PC-7                              2-Oct-08                 184      33.0         24.3             3.2           155          <2              127            7*      447            0.37         <1           596        790               8.2        1,120          24.7    7.44      1,090
PC-7 602-UP                       3-Oct-08                 195      32.8         22.0             3.6           150          <2              123           6.9      513            0.28         0.9          622        900               8.2        1,160          24.7    7.41      1,123
PC-7 902-MP                       4-Oct-08                 245      42.5         23.2             4.0           122          <2              100           5.8      710            0.21         0.9          787      1,150               8.2        1,420          24.9    7.31      1,414
PC-7 1422-LP                      7-Oct-08                 359      61.5         28.5             4.8            99          <2               81           4.6    1,090            0.12         0.9        1,150      1,700               8.0        1,830          25.5    7.57      1,841

PC-8                             23-Sep-08             61.8         11.5             8.9          2.1           229          <2              188           7.7         7.0         1.79         0.6            202         220            7.9            418        25.6    7.32           408
PC-8 863-UP                      25-Sep-08             60.4         11.4             9.0          2.2           233          <2              191           7.7         7.1         0.37         0.6            198         230            8.1            427        26.3    7.28           404
PC-8 1930-LP                     27-Sep-08             59.4         11.3             7.9          2.2           233          <2              191           7.7         3.7         0.34         0.6            195         230            8.0            407        27.9    7.32           400

RP-2A                            28-Aug-08             15.6             3.3          157          1.1*          223         6.0*             193           40          217         0.37         1.5            53          510            8.4        2,340          27.6    8.23           830

RP-2B                            26-Aug-08             45.5         15.8             109          1.2*          309         7.2*             265       17.4        96.5           0.03*       0.3*             179         450            8.4            732        24.2    7.67           743

RP-2C                            22-Aug-08                 8.8          1.8          150          0.8*          278     14.4                 252       15.6        67.4           0.07*       0.3*              29         430            8.7            689        22.6    8.54           682

RP-3A                            15-Jul-08             53.7             9.3      39.3             1.1*          224         7.2              197       23.0            9.8         0.77       0.4*             172         280            8.4            484        20.7    7.46           472

RP-3B                            12-Jul-08             31.6             4.6      64.9             1.1*          217         7.8              191       17.1            5.9         0.35       0.2*              98         250            8.5            432        23.4    7.63           430
RP-3B                            29-Nov-08             31.3             4.2      61.3             1.1*          234         <2               192       16.6            6.2         0.31       0.3*              96         240            8.2            409        23.4    7.53           420
RP-3B                            08-Dec-08             32.8             4.7      62.0             0.8*          220         6.0              190       16.4             6*         0.33       0.3*             101         250            8.5            420        23.0    7.50           432

RP-4A                            01-Jul-08             35.3             6.9      34.0             0.8*          183         5.4              159           8.4         6.1         0.78       0.3*             117         190            8.5            355        21.5    7.80           339

RP-4B                            26-Jun-08             12.8             2.6          156          1.5*          176         7.8              157       46.9            141        0.05*         1.3             43         450            8.7            783        24.4    8.41           697

RP-5                             24-Jul-08             65.7             7.8      35.4             1.0*          250         6.6              215       13.1        10.0            0.36       0.1*             196         280            8.3            482        21.1    7.30           470

RP-6                             29-Jul-08             67.2         11.3         46.9             1.5*          266     10.2                 234       13.1        40.1            1.13         0.6            214         340            8.5            536        23.4    7.26           570
RP-6                             29-Nov-08             66.5         10.4         38.9             1.6*          289      <2                  237       12.6        40.0            1.14         0.8            209         310            8.0            567        22.4    7.05           552
RP-6                             08-Dec-08             72.1         11.4         41.0             1.6*          266      3.6                 224       12.6         42             1.15         0.8            227         350            8.3            567        21.9    7.29           562
RP-6                             15-Dec-08             69.4         10.8         39.9             1.5*          271      <2                  222       12.8        40.0            1.25         0.6            218         330            8.2            520        22.1    7.29           566
RP-6                             18-Dec-08             73.5         11.4         44.2             1.7*          271      <2                  222       12.7        40.0            1.19         0.6            231         310            8.1            563        21.9    7.29           565

RP-7                             05-Aug-08                 146      50.0             165          3.4           379          <2              311           49          534        0.05*         <1             571    1,140               8.0        1,590          24.9    7.29      1,688

RP-8                             07-Aug-08             66.7         18.6         53.2             3.1           322          <2              264       30.8        27.2            1.17         0.6            243         370            8.2            665        23.3    7.12           660

RP-9                             13-Aug-08                 5.4          0.7*     90.2             0.9*          189         7.2*             167           4.2     24.5            0.20       0.3*              16         250            8.7            421        21.1    8.83           495

                 ‡
Questa Spring                    23-Apr-08                 5.1          0.5*     92.0             0.7*          210         6.6              183           16       <1            <0.02       0.5*             15          250            8.7            359      22.9      7.75           348
Questa Spring                    29-Jul-08                 3.3          0.5*     99.8             0.9*          137          50              188           7.5    17.8*            4.18       0.4*             10          290            9.5            449    ---         8.25           415

                     ‡
Rosemont Spring                  23-Apr-08             43.6             8.4      26.6             2.4           193          <2              158        16              <1        0.02*       0.3*             143         210            8.4            351        16.2     7.81          365
Rosemont Spring                  29-Jul-08             69.9             8.9      30.2             5.5           292          <2              239       17.8            4.1*        4.46       0.2*             211         310            8.1            529        32.5   ---      ---




          1232/07/DrillingReport/Tbl6_CommonConstituents.xls/11Feb2009
                                                                                         TABLE 1. SUMMARY OF RESULTS OF LABORATORY CHEMICAL ANALYSES FOR
                                                                                           COMMON CONSTITUENTS AND ROUTINE PARAMETERS IN WATER SAMPLES
                                                                                                      ROSEMONT PROJECT, PIMA COUNTY, ARIZONA
                                                                                                                    Page 4 of 4


                                                                                                                                                                              a
                                                                                                                                          COMMON CONSTITUENTS
                                                                                                                                            (milligrams per liter)                                                                                                    FIELD PARAMETERS


                                    DATE                                                                                               Total                                  NO3/NO2                   Hardness                                  EC - Lab       TEMP                 EC
      SAMPLE SOURCE               SAMPLED              Ca          Mg           Na        K            HCO3            CO3           Alkalinity        Cl       SO4            as N          F          as CaCO3       TDS         pH - Lab        (μS)b          o
                                                                                                                                                                                                                                                                      C      pH      (μS)
                                                                                                                                                Water Quality Standards
Natl. Maximum Contaminant Level                        ---          ---         ---       ---           ---             ---              ---           ---        ---             10         4.0           ---         ---            ---            ---
AZ Aquifer Water Quality Standards                     ---          ---         ---       ---           ---             ---              ---           ---        ---             10         4.0           ---         ---            ---            ---


Sycamore Spring                    30-Jul-08                 101      15.4        22.7          2.8           221             5.3*             190       11.7           123        1.56          0.2*            316         440            8.4            667        32.1    7.47          714
Sycamore Spring dup                30-Jul-08                 102      15.4        22.5          2.8           221             4.6*             188       11.6           135        1.54          0.2*            318         450            8.4            661        32.1    7.47          714

(D-19-16)17ddd                     25-Apr-08             39.8             7.1     17.1          1.2*          140             2.4*             119        12            17         0.20          0.3*            129         170            8.4            317        22.1    8.26          304
(D-19-16)17ddd                     25-Apr-08             41.3             7.6     17.8          1.3*          146             2.4*             124        12            17         0.34          0.3*            134         170            8.4            314        22.1    8.26          304
(D-19-16)17ddd                     24-Jul-08             61.1             5.1     17.3          1.0*          193             7.2*             170       13.4           7.5        1.45          0.2*            174         240            8.4            403        29.1    8.13          375

(D-19-16)18ddb                     25-Apr-08             41.4         15.0        37.2          1.0*          194         2.4*                 163        13         46            1.12          0.4*            165         270            8.4            460        21.1    6.48          439
(D-19-16)18ddb                     24-Jul-08             39.4         21.0        41.0          1.3*          157        11.4*                 148       11.9       50.5           1.83          0.3*            185         280            8.9            442        25.3    8.10          445


a
Ca = Calcium                                      CO3 = Carbonate                                                   NO3/NO2 = Nitrate/nitrite as Nitrogen                     < = Less than
Mg = Magnesium                                     Total Alkalinity = Total Alkalinity as CaCO 3                    F = Fluoride                                              --- = Not analyzed
Na = Sodium                                       Cl = Chloride                                                     TDS = Total dissolved solids
K = Potassium                                     SO4 = Sulfate                                                     EC = Electrical conductivity                               * = detected concentration is between the mimimum detection limit and practical quantitation limit
HCO3 = Bicarbonate

b
µS = microsiemens at 25ºC

‡
    Samples collected from Questa and Rosemont Springs on April 23, 2008 were transposed by
    the laboratory. Data in this table have been corrected to reflect the correct sample locations.




            1232/07/DrillingReport/Tbl6_CommonConstituents.xls/11Feb2009
                                                                                     TABLE 2. SUMMARY OF RESULTS OF LABORATORY CHEMICAL ANALYSES FOR
                                                                                                   TRACE CONSTITUENTS IN WATER SAMPLES
                                                                                                  ROSEMONT PROJECT, PIMA COUNTY, ARIZONA
                                                                                                                               Page 1 of 4

                                                                                                                                                                              a
                                                                                                                                                 TRACE CONSTITUENTS
                                                                                                                                                   (milligrams per liter)

                                  DATE
     SAMPLE SOURCE              SAMPLED       Ag         Al       As       Ba        Be        Cd       Cr       CN      Co         Cu          Fe         Hg           Mn        Mo       Ni        Pb        Sb        Se       Sulfide     Tl       U       Zn

                                                                                                                                              Water Quality Standards
Natl. Maximum Contaminant Level               ---        ---     0.01       2       0.004     0.005     0.1      0.2     ---        1.3b         ---      0.002         ---       ---      ---      0.015 b   0.006      0.05               0.002     0.030    ---
AZ Aquifer Water Quality Standards            ---        ---     0.05       2       0.004     0.005     0.1      0.2     ---         ---         ---      0.002         ---       ---      0.1       0.05     0.006      0.05               0.002       ---    ---


TTBH-08-08C                    23-Jun-08      ---       <0.03    0.0109     0.206   <0.0001   <0.0001   <0.01     0.15   <0.01       <0.01       <0.02    <0.0002        0.776      0.09   <0.01    <0.0001    0.0023   0.0004*     ---     <0.0001    0.062   <0.01

Cienega Creek                  24-Jun-08      ---       <0.03    0.0035     0.054   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01       <0.02    <0.0002       0.017*    <0.01    <0.01    <0.0001   0.0005*   <0.0001     ---     <0.0001   0.0074   <0.01

Upper Cienega Creek            24-Jun-08      ---       <0.03    0.0044     0.188   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01       <0.02    <0.0002        0.035    <0.01    <0.01    <0.0001   <0.0004   <0.0001     ---     <0.0001   0.0050   <0.01
Upper Cienega Creek dup        24-Jun-08      ---       <0.03    0.0045     0.189   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01       <0.02    <0.0002        0.036    <0.01    <0.01    <0.0001   <0.0004   <0.0001     ---     <0.0001   0.0050   <0.01

Deering Spring                 29-Apr-08      ---       <0.03    0.0026     0.160   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01       <0.02    <0.0002       <0.005    <0.01    <0.01    0.0001*   0.0008*   0.0003*     ---     <0.0001   0.0017   <0.01
Deering Spring                 29-Jul-08      ---       <0.03    0.0026     0.187   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01       <0.02    <0.0002       <0.005    <0.01    <0.01    0.0003*   <0.0004   0.0003*     ---     <0.0001   0.0015   0.02*

G-35                           29-Apr-08      ---       <0.03    0.0231    0.016*   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01       <0.02    <0.0002        0.065      0.08   <0.01    0.0002*   <0.0004   0.0004*     ---     <0.0001   0.0344   0.02*
G-35                           28-Jul-08      ---       <0.03    0.0222    0.018*   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01       0.03*    <0.0002        0.082      0.08   <0.01     0.0005   <0.0004   0.0004*     ---     <0.0001   0.0367   <0.01
G-35 dup                       28-Jul-08      ---       <0.03    0.0224    0.017*   <0.0001   0.0002*   <0.01   <0.005   <0.01       <0.01        0.05    <0.0002        0.084      0.08   <0.01    0.0003*   <0.0004   0.0004*     ---     <0.0001   0.0367   <0.01

HC-1A                          19-Aug-08      <0.01     <0.03    0.0013     0.067   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01         0.21   <0.0002       0.021*    <0.01     0.02*   0.0001*   <0.0004   0.0002*     ---     <0.0001   0.0050   <0.01

HC-1B                          15-Aug-08      <0.01     0.06*     0.0021   0.009*   <0.0001   <0.0001   <0.01   <0.005   <0.01       0.01*        0.06    <0.0002        0.033    <0.01    <0.01    0.0002*   <0.0004   0.0003*     ---     <0.0001   0.0055   0.01*
HC-1B                          08-Dec-08      <0.01     <0.03    0.0014*   0.005*   <0.0001   <0.0001   <0.01    ---     <0.01       0.01*       0.04*    <0.0002        0.037    <0.01    <0.01     0.0008   <0.0004   0.0003*     <0.02   <0.0001   0.0042   <0.01
HC-1B                          29-Nov-08      <0.01     <0.03     0.0023   <0.003   <0.0001   <0.0001   <0.01    ---     <0.01       <0.01       <0.02    <0.0002       0.006*    <0.01    <0.01     0.0013   <0.0004   0.0002*     <0.02   <0.0001   0.0045   <0.01
HC-1B                          15-Dec-08      <0.01     <0.03     0.0021   <0.003   <0.0001   <0.0001   <0.01    ---     <0.01       0.02*       <0.02    <0.0002       <0.005    0.01*    0.01*     0.0008   <0.0004   <0.0001     <0.02   <0.0001   0.0044   <0.01
HC-1B                          18-Dec-08      <0.01     <0.03    0.0014*   0.004*   <0.0001   0.0001*   <0.01    ---     <0.01       <0.01       <0.02    <0.0002       0.006*    <0.01    <0.01     0.0007   <0.0004   0.0003*     <0.02   <0.0001   0.0047   <0.01

HC-2A                           03-Jul-08     ---       <0.03    0.0020     0.074   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01        0.04*   <0.0002        0.061     0.01*    0.01*   0.0001*   <0.0004   0.0003*     ---     <0.0001   0.0031    0.02*
HC-2A                           03-Jul-08     <0.01     ---       ---      ---        ---       ---     ---      ---     ---         ---         ---        ---         ---       ---      ---        ---       ---       ---       ---       ---      ---     ---

HC-2B                           08-Jul-08     ---        0.03*   0.0013     0.045   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01         0.32   <0.0002        0.080     0.03*    0.03*   <0.0001   <0.0004   0.0003*     ---     <0.0001   0.0189    0.01*
HC-2B                           08-Jul-08     <0.01      ---      ---      ---        ---       ---     ---      ---     ---         ---         ---        ---         ---       ---      ---        ---       ---       ---       ---       ---      ---     ---

HC-3A                          11-Sep-08      <0.01     <0.03    0.0103     0.037   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01        0.03*   <0.0002       0.006*     0.03*   <0.01     0.0005   <0.0004    0.0015    ---      <0.0001   0.0041    0.03*
HC-3A                          11-Sep-08      ---       ---       ---      ---        ---       ---     ---      ---     ---         ---         ---        ---         ---       ---      ---        ---       ---       ---     <0.040      ---      ---     ---

HC-3B                          04-Sep-08      <0.01     <0.03    0.0030     0.030   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01         0.18   <0.0002       0.287      0.05*    0.01*   0.0001*   <0.0004    0.0009    ---      <0.0001   0.0318   <0.01
HC-3B                          04-Sep-08      ---       ---       ---      ---        ---       ---     ---      ---     ---         ---         ---        ---         ---       ---      ---        ---       ---       ---     <0.040      ---      ---     ---

HC-3C                          02-Sep-08      <0.01     <0.03    0.0065     0.029   <0.0001   <0.0001   <0.01   <0.005   <0.01        0.01*        0.16   <0.0002        0.032      0.10    0.01*   <0.0001   <0.0004    0.0009    ---      <0.0001   0.0349    0.01*
HC-3C                          02-Sep-08      ---       ---       ---      ---        ---       ---     ---      ---     ---         ---         ---        ---         ---       ---      ---        ---       ---       ---     <0.040      ---      ---     ---

HC-4A                           22-Jul-08     ---       <0.03    0.0030    0.008*   <0.0001   <0.0001   0.01*   <0.005   <0.01       <0.01         0.26   <0.0002       0.030*    <0.01    <0.01    0.0002*   <0.0004    0.0006     ---     0.0002*   0.0029    0.03*
HC-4A                           22-Jul-08     <0.01     ---       ---      ---        ---       ---     ---      ---     ---         ---         ---        ---         ---       ---      ---        ---       ---       ---       ---       ---      ---     ---

HC-4B                           17-Jul-08     ---       <0.03    0.0006*    0.024   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01         1.94   <0.0002        0.097     0.02*   <0.01    <0.0001   <0.0004   <0.0001     ---     <0.0001   0.0015   <0.01
HC-4B                           17-Jul-08     <0.01     ---        ---     ---        ---       ---     ---      ---     ---         ---         ---        ---         ---       ---      ---        ---       ---       ---       ---       ---      ---     ---

HC-5A                          18-Jun-08      ---       <0.03    0.0151    0.013*   <0.0001    0.0008   <0.01   <0.005   <0.01       <0.01        0.04*   <0.0002       0.013*      0.07    0.02*    0.0009   0.0004*    0.0015     ---     <0.0001   0.0029    0.02*
HC-5A                          18-Jun-08      <0.01     ---       ---      ---        ---       ---     ---      ---     ---         ---         ---        ---          ---      ---      ---        ---       ---       ---       ---       ---      ---     ---
HC-5A                          11-29-008      <0.01     <0.03    0.0184    0.009*   <0.0001    0.0009   <0.01    ---     <0.01       <0.01       <0.02    <0.0002       <0.005      0.08   <0.01     0.0022   <0.0004    0.0013     <0.02   <0.0001   0.0023   <0.01
HC-5A                          08-Dec-08      <0.01     <0.03    0.0145    0.010*   <0.0001    0.0010   <0.01    ---     <0.01        0.01*      <0.02    <0.0002       0.006*      0.08   <0.01     0.0007   <0.0004    0.0016     <0.02   <0.0001   0.0022    0.02*
HC-5A                          15-Dec-08      <0.01     <0.03    0.0171    0.006*   <0.0001    0.0010   <0.01    ---     <0.01        0.03*      <0.02    <0.0002       <0.005      0.09    0.01*    0.0008   <0.0004    0.0010     <0.02   <0.0001   0.0024    0.02*
HC-5A                          18-Dec-08      <0.01     <0.03    0.0160    0.014*   <0.0001    0.0010   <0.01    ---     <0.01        0.02*      <0.02    <0.0002       <0.005      0.08   <0.01     0.0008   0.0004*    0.0016     <0.02   <0.0001   0.0027   <0.01




1232/07/DrillingReport/Tbl7_TraceConstituents.xls/11Feb2009
                                                                                     TABLE 2. SUMMARY OF RESULTS OF LABORATORY CHEMICAL ANALYSES FOR
                                                                                                   TRACE CONSTITUENTS IN WATER SAMPLES
                                                                                                  ROSEMONT PROJECT, PIMA COUNTY, ARIZONA
                                                                                                                               Page 2 of 4

                                                                                                                                                                             a
                                                                                                                                                TRACE CONSTITUENTS
                                                                                                                                                  (milligrams per liter)

                                  DATE
     SAMPLE SOURCE              SAMPLED       Ag         Al       As       Ba        Be        Cd       Cr       CN      Co         Cu         Fe         Hg           Mn        Mo       Ni       Pb        Sb        Se       Sulfide     Tl        U       Zn

                                                                                                                                             Water Quality Standards
Natl. Maximum Contaminant Level               ---        ---      0.01     2        0.004     0.005     0.1      0.2     ---        1.3b        ---      0.002         ---       ---      ---     0.015 b   0.006      0.05               0.002     0.030     ---
AZ Aquifer Water Quality Standards            ---        ---      0.05     2        0.004     0.005     0.1      0.2     ---         ---        ---      0.002         ---       ---      0.1      0.05     0.006      0.05               0.002       ---     ---



HC-5B                          24-Jun-08      ---       <0.03    <0.0005    0.021   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01        2.43   <0.0002        0.211     0.02*   <0.01   0.0003*   <0.0004   0.0001*     ---     <0.0001   <0.0001    0.01*
HC-5B                          24-Jun-08      <0.01     ---        ---     ---        ---       ---     ---      ---     ---         ---        ---        ---         ---       ---      ---       ---       ---       ---       ---       ---       ---     ---

HV-1                           18-Sep-07      ---        0.51     0.0033   0.077    <0.0001   <0.0001   <0.01    ---     <0.01       <0.01       0.84    <0.0002        0.069    0.04*    <0.01    0.0049   0.0014*   0.0003*     ---     <0.0001    0.0040    0.08
HV-1                           18-Jan-08      ---       <0.03     0.0027   0.083    <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01      <0.02    <0.0002       <0.005    0.03*    <0.01   0.0003*   0.0010*   0.0002*     ---     <0.0001    0.0049    0.07
HV-1                           14-Feb-08      ---       0.07*     0.0022   0.071    <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01      <0.02    <0.0002       <0.005    0.05*    <0.01   0.0003*   0.0006*   0.0002*     ---     <0.0001    0.0033   0.03*
HV-1                           24-Apr-08      ---       0.04*     0.0019   0.062    <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01      <0.02    <0.0002       <0.005    <0.01    <0.01    0.0006   0.0005*   <0.0001     ---     <0.0001    0.0023   0.04*
HV-1 dup                       24-Apr-08      ---       <0.03     0.0019   0.063    <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01      <0.02    <0.0002       <0.005    <0.01    <0.01   0.0004*   0.0007*   <0.0001     ---     <0.0001    0.0024   0.04*
HV-1                           24-Jul-08      ---       <0.03     0.0021   0.047    <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01      <0.02    <0.0002       <0.005    <0.01    <0.01   0.0005*   <0.0004   <0.0001     ---     <0.0001    0.0021   0.04*

HV-2                           18-Sep-07      ---       0.10*     0.0011   0.050    <0.0001   <0.0001   <0.01    ---     <0.01       <0.01       1.16    <0.0002        0.075    0.01*    <0.01   0.0005*   <0.0004    0.0016     ---     <0.0001    0.0130   0.01*
HV-2                           18-Jan-08      ---       <0.03     0.0014   0.051    <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01      <0.02    <0.0002       0.016*    0.02*    <0.01   0.0003*   <0.0004    0.0010     ---     <0.0001    0.0113    0.06
HV-2                           14-Feb-08      ---       0.04*     0.0013   0.048    <0.0001   0.0001*   0.01*   <0.005   <0.01       <0.01      <0.02    <0.0002       0.025*    0.01*    <0.01   0.0005*   <0.0004    0.0012     ---     <0.0001    0.0115    0.07
HV-2                           24-Apr-08      ---       0.03*     0.0012   0.041    <0.0001   <0.0001   <0.01   0.016*   <0.01       <0.01      <0.02    <0.0002       <0.005    <0.01    <0.01   0.0005*   <0.0004    0.0013     ---     <0.0001    0.0105    0.06
HV-2                           24-Jul-08      ---       <0.03    0.0007*   0.040    <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01      <0.02    <0.0002       <0.005    <0.01    <0.01    0.0008   <0.0004    0.0014     ---     <0.0001    0.0110    0.73

MC-1 Spring                     23-Jul-08     ---        0.04*    0.0048   0.007*   <0.0001   <0.0001   <0.01   <0.005   <0.01       0.01*      <0.02    <0.0002       <0.005    <0.01    <0.01   0.0001*    0.0032   0.0002*     ---     <0.0001   <0.0001   <0.01

MC-2 Spring                    22-Apr-08      ---       0.12*     0.0150   0.036    <0.0001   0.0001*   <0.01   <0.005   <0.01       0.01*      <0.02    <0.0002        0.493    0.04*    <0.01   0.0003*   0.0006*   <0.0001     ---     <0.0001    0.0025   0.03*
MC-2 Spring                    23-Jul-08      ---       <0.03     0.0219   0.069    <0.0001   0.0001*   <0.01   <0.005   <0.01       0.01*       0.36    <0.0002        0.400     0.12    <0.01   0.0003*   0.0012*    0.0005     ---     <0.0001    0.0060   <0.01

P-899                          13-Feb-08      ---       0.07*     0.0182   0.048    <0.0001   0.0001*   <0.01   <0.005   <0.01       <0.01       0.50    <0.0002       0.006*      0.09   <0.01   <0.0001   <0.0004   <0.0001     ---     <0.0001    0.0151   <0.01
P-899                          21-Apr-08      ---       0.10*     0.0177   0.065    <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01       0.05    0.0003*        0.072      0.07   <0.01   0.0001*   <0.0004   <0.0001     ---     <0.0001    0.0174   0.01*
P-899                          25-Jul-08      ---       <0.03     0.0164   0.053    <0.0001   0.0001*   <0.01   <0.005   <0.01       <0.01      0.03*    <0.0002       0.021*      0.07   <0.01   0.0004*   <0.0004   <0.0001     ---     <0.0001    0.0149   <0.01

PC-1                           25-May-07      ---       0.03*     0.0028   0.015    <0.0001   0.0002*   <0.01   <0.005   <0.01       <0.01      <0.02    <0.0002        0.046    0.03*    <0.01   0.0002*   <0.0004    0.0018     ---     <0.0001    0.0016     0.35

PC-2                           16-May-07      ---       <0.03     0.0154   0.010*   <0.0001   0.0002*   <0.01   <0.005   <0.01       <0.01      <0.02    <0.0002        0.053      0.13   <0.01   0.0001*   0.0009*    0.0044    ---      <0.0001    0.0040     0.39
PC-2                           22-Apr-08      ---       <0.03     0.0078   0.013*   <0.0001   <0.0001   0.01*   <0.005   <0.01       <0.01        0.49   <0.0002       0.014*      0.19   <0.01   <0.0001   0.0005*    0.0028    ---      <0.0001    0.0060    0.01*
PC-2                            25-Jul-08     ---       <0.03     0.0018   0.013*   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01        0.21   <0.0002        0.084      0.16   <0.01   0.0003*   0.0006*    0.0011    ---      <0.0001    0.0095     3.34
PC-2                           11-Sep-08      ---       ---        ---     ---        ---       ---     ---      ---     ---         ---        ---        ---         ---       ---      ---       ---       ---       ---     <0.040      ---       ---     ---

PC-3                            1-Jun-07      ---       <0.03     0.0038   0.058    <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01        0.43   <0.0002        0.671      0.13   <0.01   0.0001*   <0.0004   0.0006      ---     <0.0001    0.0159     0.56

PC-4                           18-May-07      ---        0.04*    0.0023   0.183    <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01        0.96   <0.0002        0.565    0.03*    <0.01   0.0002*   0.0005*    0.0006     ---     <0.0001    0.0064     0.61

PC-5                           21-Oct-08    <0.01       <0.03     0.0040   0.010*   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01       0.15    <0.0002       0.007*      0.07   0.01*   <0.0001   <0.0004    0.0014     <0.02   <0.0001    0.0016   <0.01
PC-5-922-UP                    21-Oct-08    <0.01       <0.03     0.0032   0.010*   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01       0.33    <0.0002       0.009*      0.07   <0.01   <0.0001   <0.0004    0.0017     <0.02   <0.0001    0.0013   <0.01
PC-5-1516-LP                   23-Oct-08    <0.01       <0.03     0.0017    0.030   <0.0001   0.0001*   <0.01    <0.01   <0.01       <0.01       0.21    <0.0002        0.114      0.63   <0.01   <0.0001   0.0010*    0.0019       1.1   <0.0001    0.0092   <0.01
PC-5                           29-Nov-08    <0.01       <0.03     0.0063   0.006*   <0.0001   <0.0001   <0.01    ---     <0.01       0.02*      <0.02    <0.0002       <0.005      0.07   <0.01    0.0012   <0.0004    0.0014     <0.02   <0.0001    0.0013   <0.01
PC-5                           08-Dec-08    <0.01       <0.03     0.0051   0.008*   <0.0001   <0.0001   <0.01    ---     <0.01       0.02*      <0.02    <0.0002       0.007*      0.05   <0.01    0.0009   <0.0004    0.0018     <0.02   <0.0001    0.0012   <0.01
PC-5                           15-Dec-08    <0.01       <0.03     0.0062   0.003*   <0.0001   <0.0001   <0.01    ---     <0.01       0.04*      <0.02    <0.0002       <0.005      0.08   0.01*    0.0012   <0.0004    0.0011     <0.02   <0.0001    0.0013   <0.01
PC-5                           18-Dec-08    <0.01       <0.03     0.0054   0.014*   <0.0001   <0.0001   <0.01    ---     <0.01       0.02*      <0.02    <0.0002       0.006*      0.07   <0.01    0.0006   <0.0004    0.0017     <0.02   <0.0001    0.0014   <0.01

PC-6                           12-Oct-08      <0.01     <0.03     0.0014   0.028    <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01        0.84   <0.0002        0.101      0.07   0.01*   0.0004*   <0.0004    0.0018     <0.02   0.0001*    0.0049   <0.01
PC-6-522-UP                    13-Oct-08      <0.01     <0.03    0.0009*   0.028    <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01        0.50   <0.0002        0.099      0.07   0.01*   0.0003*   <0.0004    0.0017     <0.02   <0.0001    0.0046   <0.01
PC-6-1002-MP                   14-Oct-08      <0.01     <0.03    0.0008*   0.026    <0.0001   <0.0001   <0.01   <0.005   <0.01       0.02*        1.12   <0.0002        0.116      0.07   0.02*   <0.0001   <0.0004    0.0013     <0.02   <0.0001    0.0056   <0.01
PC-6-1502-LP                   16-Oct-08      <0.01     <0.03    0.0008*   0.026    <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.02        1.37   <0.0002        0.172      0.07   <0.01   <0.0001   <0.0004    0.0015     <0.02   <0.0001    0.0038   0.03*




1232/07/DrillingReport/Tbl7_TraceConstituents.xls/11Feb2009
                                                                                     TABLE 2. SUMMARY OF RESULTS OF LABORATORY CHEMICAL ANALYSES FOR
                                                                                                   TRACE CONSTITUENTS IN WATER SAMPLES
                                                                                                  ROSEMONT PROJECT, PIMA COUNTY, ARIZONA
                                                                                                                               Page 3 of 4

                                                                                                                                                                              a
                                                                                                                                                 TRACE CONSTITUENTS
                                                                                                                                                   (milligrams per liter)

                                  DATE
     SAMPLE SOURCE              SAMPLED       Ag         Al       As       Ba        Be        Cd       Cr       CN      Co         Cu          Fe            Hg        Mn        Mo       Ni        Pb        Sb        Se       Sulfide     Tl       U       Zn

                                                                                                                                              Water Quality Standards
Natl. Maximum Contaminant Level               ---        ---      0.01     2        0.004     0.005     0.1      0.2     ---        1.3b         ---         0.002      ---       ---      ---      0.015 b   0.006      0.05               0.002     0.030    ---
AZ Aquifer Water Quality Standards            ---        ---      0.05     2        0.004     0.005     0.1      0.2     ---         ---         ---         0.002      ---       ---      0.1       0.05     0.006      0.05               0.002       ---    ---



PC-7                            2-Oct-08      <0.01     <0.03     0.0011   0.019*   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01         0.52      <0.0002     0.109      0.07   <0.01    <0.0001   <0.0004    0.0041     <0.02   <0.0001   0.0032   <0.01
PC-7 602-UP                     3-Oct-08      <0.01     <0.03     0.0014    0.021   <0.0001   <0.0001   <0.01   <0.005   <0.01       0.02*         0.40      <0.0002     0.095      0.09   <0.01    <0.0001   <0.0004    0.0034     <0.02   <0.0001   0.0027   0.01*
PC-7 902-MP                     4-Oct-08      <0.01     <0.03     0.0014   0.017*   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01         0.51      <0.0002     0.094      0.11   <0.01    <0.0001   <0.0004    0.0055     <0.02   <0.0001   0.0031   0.02*
PC-7 1422-LP                    7-Oct-08      <0.01     <0.03     0.0011   0.012*   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01         1.20      <0.0002     0.116      0.09   <0.01     0.0007   <0.0004    0.0039     <0.02   0.0002*   0.0031   0.05*

PC-8                           23-Sep-08      <0.01     <0.03     0.0022    0.024   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01        0.06       <0.0002    0.019*    0.01*    <0.01    <0.0001   <0.0004    0.0019     <0.02   <0.0001   0.0029     0.07
PC-8 863-UP                    25-Sep-08      <0.01     <0.03     0.0018   0.019*   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01        0.11       <0.0002    0.019*    <0.01    <0.01    <0.0001   <0.0004    0.0018     <0.02   <0.0001   0.0030     0.07
PC-8 1930-LP                   27-Sep-08      <0.01     <0.03     0.0023    0.020   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01       0.03*       <0.0002    <0.005    <0.01    <0.01    <0.0001   <0.0004    0.0017     <0.02   <0.0001   0.0030     0.16

RP-2A                          28-Aug-08      <0.01      0.11*    0.0266   0.009*   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01             0.1   <0.0002     0.036    0.03*    <0.01    0.0005*    0.0031    0.0011     ---     <0.0001   0.0145   0.05*

RP-2B                          26-Aug-08      <0.01      0.05*    0.0137   0.053    <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01       <0.02       <0.0002     0.074    <0.01    <0.01    0.0001*   0.0008*   <0.0001     ---     <0.0001   0.0034   <0.01

RP-2C                          22-Aug-08      <0.01       <0.3    0.0052   0.041    <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01       0.03*       <0.0002     0.059    <0.01    <0.01    0.0001*   0.0006*   0.0002*     ---     <0.0001   0.0261   <0.01

RP-3A                           15-Jul-08     ---        0.03*    0.0050   0.095    <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01       <0.02       <0.0002    0.006*    <0.01    <0.01    0.0005*   <0.0004   0.0003*     ---     <0.0001   0.0022   0.04*

RP-3B                          12-Jul-08      ---       <0.03    0.0006*    0.113   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01         0.10      <0.0002    0.017*    <0.01     0.03*   0.0003*   <0.0004   0.0002*     ---     <0.0001   0.0155    0.02*
RP-3B                          12-Jul-08      <0.01     ---        ---     ---        ---       ---     ---      ---     ---         ---         ---           ---      ---       ---      ---        ---       ---       ---       ---       ---      ---     ---
RP-3B                          29-Nov-08      <0.01     <0.03    0.0008*    0.110   <0.0001   <0.0001   <0.01    ---     <0.01       <0.01        0.03*      <0.0002    0.013*     0.01*   <0.01     0.0020   <0.0004   0.0002*     <0.02   <0.0001   0.0134   <0.01
RP-3B                          08-Dec-08      <0.01     <0.03    <0.0005    0.116   <0.0001   <0.0001   <0.01    ---     <0.01        0.01*      <0.02       <0.0002     0.043    <0.01    <0.01     0.0007   <0.0004   0.0003*     <0.02   <0.0001   0.0117   <0.01

RP-4A                           01-Jul-08     ---       <0.03     0.0026    0.021   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01        0.02*      <0.0002     0.042    <0.01     0.01*   <0.0001   <0.0004   <0.0001     ---     <0.0001   0.0022    0.02*
RP-4A                           01-Jul-08     <0.01     ---        ---     ---        ---       ---     ---      ---     ---         ---         ---           ---      ---       ---      ---        ---       ---       ---       ---       ---      ---     ---

RP-4B                          26-Jun-08      ---       <0.03     0.0012    0.021   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01         0.28      0.0002*     0.086     0.02*   <0.01    <0.0001   <0.0004   0.0003*     ---     <0.0001   0.0086   <0.01
RP-4B                          26-Jun-08      <0.01     ---        ---     ---        ---       ---     ---      ---     ---         ---         ---           ---      ---       ---      ---        ---       ---       ---       ---       ---      ---     ---

RP-5                            24-Jul-08     ---       <0.03     0.0013    0.074   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01         0.34      <0.0002     0.050    <0.01    <0.01    0.0002*   <0.0004   0.0002*     ---     <0.0001   0.0011   <0.01
RP-5                            24-Jul-08     <0.01     ---        ---     ---        ---       ---     ---      ---     ---         ---         ---           ---      ---       ---      ---        ---       ---       ---       ---       ---      ---     ---

RP-6                           29-Jul-08      ---       <0.03     0.0029    0.111   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01       <0.02       <0.0002    <0.005    <0.01    <0.01    0.0004*   <0.0004    0.0006     ---     <0.0001   0.0033   <0.01
RP-6                           29-Jul-08      <0.01     ---        ---     ---        ---       ---     ---      ---     ---         ---         ---           ---       ---      ---      ---        ---       ---       ---       ---       ---      ---     ---
RP-6                           29-Nov-08      <0.01     <0.03     0.0026    0.126   <0.0001   <0.0001   <0.01    ---     <0.01       <0.01       <0.02       <0.0002    <0.005    <0.01    <0.01     0.0023   <0.0004    0.0006     <0.02   <0.0001   0.0025   <0.01
RP-6                           08-Dec-08      <0.01     <0.03    0.0018*    0.135   <0.0001   <0.0001   <0.01    ---     <0.01       <0.01        0.03*      <0.0002    0.021*    <0.01    <0.01     0.0009   <0.0004    0.0008     <0.02   <0.0001   0.0023   <0.01
RP-6                           15-Dec-08      0.01*     0.05*     0.0023    0.128   <0.0001   <0.0001   <0.01    ---     <0.01        0.02*      <0.02       <0.0002    <0.005     0.02*    0.01*    0.0011   <0.0004   0.0002*     <0.02   <0.0001   0.0024   <0.01
RP-6                           18-Dec-08      <0.01     <0.03    0.0017*    0.145   <0.0001   <0.0001   <0.01    ---     <0.01       <0.01       <0.02       <0.0002    <0.005    <0.01    <0.01     0.0007   <0.0004    0.0007     <0.02   <0.0001   0.0027   <0.01

RP-7                           05-Aug-08      <0.01     <0.03     0.0063   0.028    <0.0001   <0.0001   <0.01   <0.005   0.01*       <0.01         0.12      <0.0002     0.152    <0.01     0.01*    0.0005   0.0016*   <0.0001     ---     <0.0001   0.0070     0.06

RP-8                           07-Aug-08      <0.01     <0.03     0.0041   0.147    <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01       <0.02       <0.0002    <0.005    <0.01    <0.01     0.0007   <0.0004    0.0006     ---     <0.0001   0.0083   0.01*

RP-9                           13-Aug-08      <0.01     <0.03     0.0104   0.044    <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01       <0.02       <0.0002    <0.005    0.02*     0.02*   0.0003*   <0.0004   0.0004*     ---     <0.0001   0.0211   <0.01

                 ‡
Questa Spring                  23-Apr-08      ---       <0.03     0.0144    0.025   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01       0.04*       <0.0002    <0.005    0.02*    <0.01    <0.0001   <0.0004   0.0002*     ---     <0.0001   0.0274   0.01*
Questa Spring                  29-Jul-08      ---       0.07*     0.0163   0.018*   <0.0001   0.0002*   <0.01   0.008*   <0.01       <0.01        0.19       <0.0002    0.013*    <0.01    <0.01     0.0011   <0.0004   0.0002*     ---     <0.0001   0.0282   0.03*

                     ‡
Rosemont Spring                23-Apr-08      ---       0.05*     0.0044   0.090    <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01       <0.02       <0.0002    <0.005    0.02*    <0.01    <0.0001   <0.0004   <0.0001     ---     <0.0001   0.0046   0.02*
Rosemont Spring                29-Jul-08      ---       <0.03     0.0225   0.105    <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01       0.04*       <0.0002     1.000    0.04*    <0.01    <0.0001   <0.0004   <0.0001     ---     <0.0001   0.0017   <0.01

Sycamore Spring                 30-Jul-08     ---       <0.03     0.0043   0.050    <0.0001   0.0003*   <0.01   <0.005   <0.01       <0.01       <0.02       <0.0002    <0.005    0.02*    <0.01     0.0006   0.0006*    0.0014     ---     <0.0001   0.0019   <0.01
Sycamore Spring dup             30-Jul-08     ---       <0.03     0.0040   0.050    <0.0001   0.0003*   <0.01   <0.005   0.01*       0.03*       <0.02       <0.0002    0.006*    0.02*    <0.01     0.0038   0.0006*    0.0013     ---     <0.0001   0.0019   0.01*

(D-19-16)17ddd                 25-Apr-08      ---       <0.03     0.0014   0.012*   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01       <0.02       <0.0002    <0.005    <0.01    <0.01    0.0002*   <0.0004   0.0006      ---     <0.0001   0.0007   0.02*
(D-19-16)17ddd                 25-Apr-08      ---       <0.03     0.0014    0.022   <0.0001   <0.0001   <0.01   <0.005   <0.01       <0.01       <0.02       <0.0002    <0.005    <0.01    <0.01    0.0004*   <0.0004   0.0007      ---     <0.0001   0.0007   0.03*




1232/07/DrillingReport/Tbl7_TraceConstituents.xls/11Feb2009
                                                                                             TABLE 2. SUMMARY OF RESULTS OF LABORATORY CHEMICAL ANALYSES FOR
                                                                                                           TRACE CONSTITUENTS IN WATER SAMPLES
                                                                                                          ROSEMONT PROJECT, PIMA COUNTY, ARIZONA
                                                                                                                                              Page 4 of 4

                                                                                                                                                                                                a
                                                                                                                                                                   TRACE CONSTITUENTS
                                                                                                                                                                     (milligrams per liter)

                                  DATE
     SAMPLE SOURCE              SAMPLED       Ag           Al           As          Ba       Be            Cd       Cr        CN        Co         Cu             Fe          Hg          Mn        Mo          Ni         Pb          Sb         Se       Sulfide     Tl       U       Zn

                                                                                                                                                                Water Quality Standards
Natl. Maximum Contaminant Level               ---          ---         0.01         2       0.004         0.005     0.1       0.2       ---        1.3b            ---       0.002        ---        ---        ---       0.015 b     0.006      0.05                0.002     0.030    ---
AZ Aquifer Water Quality Standards            ---          ---         0.05         2       0.004         0.005     0.1       0.2       ---         ---            ---       0.002        ---        ---        0.1        0.05       0.006      0.05                0.002       ---    ---


(D-19-16)17ddd                  24-Jul-08     ---          <0.03       0.0006*      0.159   <0.0001       0.0003*   <0.01    <0.005     <0.01       <0.01          <0.02    <0.0002       <0.005     <0.01      <0.01     0.0003*    <0.0004    0.0004*      ---     <0.0001   0.0007     0.45

(D-19-16)18ddb                 25-Apr-08      ---          <0.03       0.0031       0.074   <0.0001       <0.0001   <0.01    <0.005     <0.01       <0.01          <0.02    <0.0002       <0.005     <0.01      <0.01    <0.0001     <0.0004    0.0005       ---     <0.0001   0.0124   0.04*
(D-19-16)18ddb                 24-Jul-08      ---          0.03*       0.0027       0.066   <0.0001       <0.0001   <0.01    <0.005     <0.01       <0.01           0.09    <0.0002       0.009*     <0.01      <0.01     0.0012     0.0008*    0.0004*      ---     <0.0001   0.0116    0.15

                                                        Notes:     < = Less than
                                                                   --- = Not analyzed or not applicable                                                     Bold Values = Exceeded Arizona Aquifer Water Quality Stanrdard

                                                    a
                                                        Ag = Silver              Cr = Chromium        Hg = Mercury          Sb = Antimony                   * = detected concentration is between the mimimum detection limit and practical quantitation limit
                                                        Al = Aluminum            CN = Cyanide         Mn = Manganese        Se = Selenium
                                                        As = Arsenic             Co = Cobalt          Mo = Molybdenum       Tl = Thallium
                                                        Ba = Barium              Cu = Copper          Ni = Nickel           U = Uranium                     Similar concentration detected in blank
                                                        Be = Beryllium           Fe = Iron            Pb = Lead             Zn = Zinc
                                                        Cd = Cadmium
                                                                                                                                                            ‡
                                                                                                                                                                Samples collected from Questa and Rosemont Springs on April 23, 2008 were transposed by
                                                    b
                                                        Action level                                                                                            the laboratory. Data in this table have been corrected to reflect the correct sample locations.




1232/07/DrillingReport/Tbl7_TraceConstituents.xls/11Feb2009
                                                 TABLE 3. SUMMARY OF RESULTS OF LABORATORY CHEMICAL ANALYSES FOR
                                                   RADIOCHEMICAL CONSTITUENTS AND PARAMETERS IN WATER SAMPLES
                                                              ROSEMONT PROJECT, PIMA COUNTY, ARIZONA
                                                                             Page 1 of 5
                                                                                                                                      a
                                                                                                 RADIOCHEMICAL CONSTITUENTS
                                                                                                      (picocurries per liter)

                                             DATE                         Adjusted
              SAMPLE SOURCE                SAMPLED           Gross α      Gross α      Gross β           Ra 226          Ra 228           U 234         U 235           U 238

                                                                                                       Water Quality Standards
         Natl. Maximum Contaminant Level                         ---         15      4 millirems/yr          5.0 (combined)                           see total U
         Az. Aquifer Water Quality Standards                     ---         15             ---              5.0 (combined)                           see total U

         TTBH-08-08C                       23-Jun-08      1,800 +/- 570    1,723          ---          4.1 +/- 3.2     35 +/- 4.6     50 +/- 7.1      6 +/- 3.9       20.9 +/- 6

         Cienega Creek                     24-Jun-08        3.2 +/- 3.4       0.0         ---          0 +/- 0.08     1.3 +/- 0.69    6.3 +/- 1.6    1.1 +/- 0.99    1.87 +/- 1.3

         Upper Cienega Creek               24-Jun-08        4.8 +/- 3.1       0.0         ---         0.08 +/- 0.11   4.6 +/- 0.92    6.1 +/- 1.6    0.8 +/- 0.94    2.84 +/- 1.5
         Upper Cienega Creek dup           24-Jun-08        2.5 +/- 2.7       0.0         ---         0.11 +/- 0.11   2.5 +/- 0.75     6 +/- 1.6     0.0 +/- 0.76    1.17 +/- 1.2

         Deering Spring                    29-Apr-08        3.2 +/- 2.6       0.0         ---          0.2 +/- 0.1    1.8 +/- 0.53    1.1 +/- 0.8    0.0 +/- 0.76    0.75 +/- 1.2
         Deering Spring                    29-Jul-08        2.5 +/- 2.1       0.0         ---         0.32 +/- 0.12   0.76 +/- 0.51   2.7 +/- 1.1   -0.11 +/- 0.73   1.07 +/- 1.2

         G-35                              29-Apr-08        29 +/- 5.9        5.1         ---          0.3 +/- 0.1    1.4 +/- 0.62    13 +/- 2.1    0.56 +/- 0.87    10.3 +/- 2.1
         G-35                              28-Jul-08        34 +/- 6.5        5.6         ---         0.37 +/- 0.1    1.4 +/- 0.57    14 +/- 2.3    0.39 +/- 0.84     14 +/- 2.4
         G-35 dup                          28-Jul-08        22 +/- 4.6        0.0         ---         0.11 +/- 0.14   0.75 +/- 0.5    14 +/- 2.4    0.63 +/- 0.92    12.6 +/- 2.5

         HC-1A                            19-Aug-08         4.2 +/- 2.4       0.0         ---         0.35 +/- 0.25   1.7 +/- 0.63    6.1 +/- 1.6   -0.35 +/- 0.66    2 +/- 1.3

         HC-1B                            15-Aug-08         5.7 +/- 2.7       0.0         ---         0.07 +/- 0.06   0.41 +/- 0.55   4.1 +/- 1.3    0.0 +/- 0.76    1.66 +/- 1.3

         HC-2A                             03-Jul-08        8.2 +/- 3.7       0.0         ---         0.42 +/- 0.19   0.89 +/- 0.74   4.6 +/- 1.5   -0.97 +/- 0.42   2.58 +/- 1.4

         HC-2B                             08-Jul-08        20 +/- 4.8        3.7         ---         0.23 +/- 0.1    1.2 +/- 0.71    11 +/- 2.2     0.6 +/- 0.92    4.73 +/- 1.8

         HC-3A                            11-Sep-08         9.3 +/- 3.8       1.1         ---         0.05 +/- 0.08   0.89 +/- 0.6    5.8 +/- 1.6    0.0 +/- 0.76    2.38 +/- 1.4

         HC-3B                            04-Sep-08         16 +/- 4.8        0.0         ---         0.1 +/- 0.12    1.7 +/- 0.71    15 +/- 2.3     0.0 +/- 0.76    13.5 +/- 2.4

         HC-3C                            02-Sep-08         28 +/- 6.5        4.3         ---         0.02 +/- 0.1    0.23 +/- 0.63   13 +/- 2.4    -0.1 +/- 0.73    10.7 +/- 2.4

         HC-4A                             22-Jul-08        11 +/- 3.6        0.0         ---         0.22 +/- 0.11   0.95 +/- 0.62   14 +/- 2.6    -0.59 +/- 0.56   1.09 +/- 1.2




1232/07/DrillingReport/Tbl8_Radiological_Constituents.xls/113Feb2009
                                                 TABLE 3. SUMMARY OF RESULTS OF LABORATORY CHEMICAL ANALYSES FOR
                                                   RADIOCHEMICAL CONSTITUENTS AND PARAMETERS IN WATER SAMPLES
                                                              ROSEMONT PROJECT, PIMA COUNTY, ARIZONA
                                                                             Page 2 of 5
                                                                                                                                       a
                                                                                                 RADIOCHEMICAL CONSTITUENTS
                                                                                                      (picocurries per liter)

                                             DATE                         Adjusted
              SAMPLE SOURCE                SAMPLED           Gross α      Gross α      Gross β           Ra 226          Ra 228             U 234          U 235           U 238

                                                                                                        Water Quality Standards
         Natl. Maximum Contaminant Level                         ---         15      4 millirems/yr           5.0 (combined)                             see total U
         Az. Aquifer Water Quality Standards                     ---         15             ---               5.0 (combined)                             see total U



         HC-4B                             17-Jul-08        1.6 +/- 2.5       0.0         ---         0.09 +/- 0.13   0.86 +/- 0.63        5 +/- 1.5   0.45 +/- 0.87    0.79 +/- 1.2

         HC-5A                             18-Jun-08       0.49 +/- 2.1       0.0         ---         0.15 +/- 0.09    3.3 +/- 0.61   2.7 +/- 0.97      0.0 +/- 0.76    1.43 +/- 1.2

         HC-5B                             24-Jun-08        5.3 +/- 4.4       5.2         ---         0.02 +/- 0.14   0.97 +/- 0.58   0.11 +/- 0.49    -0.11 +/- 0.73 -0.11 +/- 0.99

         HV-1                             18-Sep-07         7.4 +/- 3.8       0.0    7.7 +/- 3.4      0.19 +/- 0.08    2.3 +/- 0.6     11 +/- 2.2      0.0 +/- 0.76     1.37 +/- 1.3
         HV-1                             18-Jan-08         11 +/- 3.9        0.0    0.68 +/- 3       0.25 +/- 0.11   0.62 +/- 0.47    16 +/- 2.6        1.2 +/- 1      10.5 +/- 2.3
         HV-1                             14-Feb-08         8.1 +/- 3.6       0.0    1.9 +/- 3.3      0.22 +/- 0.1    1.7 +/- 0.57     8.4 +/- 1.9     0.44 +/- 0.87    9.16 +/- 2.2
         HV-1                             24-Apr-08         13 +/- 3.8        0.7        ---          0.3 +/- 0.08    1.2 +/- 0.65      10 +/- 2        1.9 +/- 1.1     0.93 +/- 1.2
         HV-1 dup                         24-Apr-08         5.2 +/- 2.7       0.0        ---          0.37 +/- 0.1    1.3 +/- 0.52     8.3 +/- 1.8     0.12 +/- 0.79    0.97 +/- 1.2
         HV-1                             24-Jul-08         9.5 +/- 3.6       0.9        ---          0.39 +/- 0.17   0.38 +/- 0.61    7.9 +/- 1.9     0.0 +/- 0.76     0.73 +/- 1.2

         HV-2                             18-Sep-07         13 +/- 4.2        0.0     4.7 +/- 3.4     0.32 +/- 0.11   0.66 +/- 0.54    15 +/- 2.5         1.1 +/- 1     5.73 +/- 1.8
         HV-2                             18-Jan-08         12 +/- 4.1        0.0    0.34 +/- 2.9     0.04 +/- 0.1    1.2 +/- 0.54     14 +/- 2.4       0.81 +/- 0.94   3.83 +/- 1.6
         HV-2                             14-Feb-08         9.7 +/- 4.1       0.0     2.7 +/- 3.1     0.25 +/- 0.11   1.9 +/- 0.56     16 +/- 2.6        1.4 +/- 1.1    10.4 +/- 2.3
         HV-2                             24-Apr-08         12 +/- 4.4        0.0         ---         0.29 +/- 0.06    1.8 +/- 0.59    15 +/- 2.5       0.9 +/- 0.96    4.15 +/- 1.6
         HV-2                             24-Jul-08         14 +/- 4.3        0.0         ---         0.48 +/- 0.13   7.1 +/- 0.98     13 +/- 2.4      -0.64 +/- 0.56   4.03 +/- 1.6

         MC-1 Spring                       23-Jul-08        2.9 +/- 2.1       2.9         ---         - 0.02 +/- 0.14 0.85 +/- 0.65   0.0 +/- 0.45     -0.59 +/- 0.59    0.0 +/- 1

         MC-2 Spring                       22-Apr-08          3 +/- 3         0.0         ---         0.12 +/- 0.13   0.82 +/- 0.51    4.7 +/- 1.4      0.12 +/- 0.79   1.52 +/- 1.3
         MC-2 Spring                       23-Jul-08         1.4 +/- 2        0.0         ---         0.09 +/- 0.1    0.83 +/- 0.6     2.5 +/- 1.1     -0.44 +/- 0.63   0.44 +/- 1.1

         P-899                            13-Feb-08         36 +/- 6.4       29.9     26 +/- 4.6        7.2 +/- 0.4    1.6 +/- 0.61    3.3 +/- 1.2     0.0 +/- 0.76     2.76 +/- 1.4
         P-899                            21-Apr-08         30 +/- 5.9       12.5        ---           6.6 +/- 0.32     0.8 +/- 0.5     11 +/- 2        1.6 +/- 1.1     4.87 +/- 1.7
         P-899                            25-Jul-08         25 +/- 5.6        9.6        ---           9.4 +/- 0.51    2.5 +/- 0.69    9.5 +/- 1.9     0.12 +/- 0.79    5.83 +/- 1.8




1232/07/DrillingReport/Tbl8_Radiological_Constituents.xls/113Feb2009
                                                 TABLE 3. SUMMARY OF RESULTS OF LABORATORY CHEMICAL ANALYSES FOR
                                                   RADIOCHEMICAL CONSTITUENTS AND PARAMETERS IN WATER SAMPLES
                                                              ROSEMONT PROJECT, PIMA COUNTY, ARIZONA
                                                                             Page 3 of 5
                                                                                                                                        a
                                                                                                 RADIOCHEMICAL CONSTITUENTS
                                                                                                      (picocurries per liter)

                                             DATE                         Adjusted
              SAMPLE SOURCE                SAMPLED           Gross α      Gross α      Gross β           Ra 226           Ra 228            U 234         U 235           U 238

                                                                                                        Water Quality Standards
         Natl. Maximum Contaminant Level                         ---         15      4 millirems/yr           5.0 (combined)                            see total U
         Az. Aquifer Water Quality Standards                     ---         15             ---               5.0 (combined)                            see total U



         PC-1                             25-May-07         5.1 +/- 3.1       2.7    3.3 +/- 2.9      0.12 +/- 0.06    1.5 +/- 0.56    1.9 +/- 0.95   0.24 +/- 0.81    0.24 +/- 1.1

         PC-2                             16-May-07         8.1 +/- 3.2       0.0    2.9 +/- 2.8      0.61 +/- 0.12    1.7 +/- 0.57     11 +/- 2.1     0.61 +/- 0.89   5.77 +/- 1.8
         PC-2                             21-Apr-08         6.8 +/- 3.7       2.7        ---          0.92 +/- 0.18    0.48 +/- 0.46    3.4 +/- 1.2   -0.37 +/- 0.66   0.74 +/- 1.1
         PC-2                              25-Jul-08        5.8 +/- 3.4       0.0        ---          0.45 +/- 0.18    0.42 +/- 0.57    4.2 +/- 1.4    -0.1 +/- 0.73   2.57 +/- 1.5

         PC-3                              1-Jun-07         17 +/- 5.3        1.5    7.7 +/- 3.8       0.47 +/- 0.1    0.71 +/- 0.54    7.6 +/- 1.5   0.47 +/- 0.84    7.48 +/- 1.8

         PC-4                             18-May-07         5.8 +/- 2.8       0.0    4.2 +/- 2.9       0.39 +/- 0.1      3.3 +/- 1      6.1 +/- 1.5   0.26 +/- 0.81    3.42 +/- 1.5

         PC-5                              21-Oct-08        1.4 +/- 2.5       0.0         ---          0.12 +/- 0.09   1.1 +/- 0.59      1 +/- 0.77    0.23 +/- 0.81   0.91 +/- 1.2
         PC-5-922-UP                       21-Oct-08        3.1 +/- 2.6       0.8         ---         -0.01 +/- 0.13   1.5 +/- 0.63        2 +/- 1     0.0 +/- 0.76    0.31 +/- 1.1
         PC-5-1516-LP                      23-Oct-08        6.1 +/- 4.1       5.7         ---          0.19 +/- 0.06   1.6 +/- 0.65    -0.72 +/- 0.15 -0.12 +/- 0.73   0.36 +/- 1.1

         PC-6                              12-Oct-08        12 +/- 4.8        5.6         ---         0.29 +/- 0.16    0.58 +/- 0.56    3.4 +/- 1.3     0.1 +/- 0.79   2.89 +/- 1.5
         PC-6-522-UP                       13-Oct-08        10 +/- 4.6        2.2         ---         0.08 +/- 0.09    1.6 +/- 0.62     3.2 +/- 1.2      1.2 +/- 1     3.42 +/- 1.5
         PC-6-1002-MP                      14-Oct-08        7.2 +/- 4.3       2.2         ---         0.11 +/- 0.09    1.5 +/- 0.62      3 +/- 1.2     -0.22 +/- 0.7   1.97 +/- 1.4
         PC-6-1502-LP                      16-Oct-08        2.7 +/- 2.9       0.0         ---         0.21 +/- 0.18    1.5 +/- 0.63      2.3 +/- 1    -0.12 +/- 0.73   2.16 +/- 1.4

         PC-7                              2-Oct-08          5.4 +/- 3        0.3         ---         0.18 +/- 0.08    0.26 +/- 0.55    3.4 +/- 1.2   -0.34 +/- 0.66   1.68 +/- 1.3
         PC-7 602-UP                       3-Oct-08          5.7 +/- 3        2.0         ---         0.25 +/- 0.11    0.96 +/- 0.52    2.4 +/- 1.1    -0.22 +/- 0.7    1.3 +/- 1.2
         PC-7 902-MP                       4-Oct-08         1.8 +/- 3.6       0.0         ---         0.33 +/- 0.1      0.3 +/- 0.5    1.5 +/- 0.88   -0.12 +/- 0.73   2.78 +/- 1.4
         PC-7 1422-LP                      7-Oct-08         2.6 +/- 4.9       0.0         ---         0.11 +/- 0.13    0.97 +/- 0.57    2.4 +/- 1.1   -0.11 +/- 0.73   1.21 +/- 1.2

         PC-8                             23-Sep-08         8.3 +/- 3.6       0.0         ---         0.36 +/- 0.17    2.4 +/- 0.67     9.1 +/- 1.9    0.59 +/- 0.89    1.9 +/- 1.3
         PC-8 863-UP                      25-Sep-08         8.4 +/- 4.4       0.0         ---         0.31 +/- 0.22    1.9 +/- 0.59      9 +/- 1.9    -0.35 +/- 0.66   1.54 +/- 1.3
         PC-8 1930-LP                     27-Sep-08         13 +/- 4.3        1.5         ---         0.38 +/- 0.2     0.95 +/- 0.54     10 +/- 2      0.12 +/- 0.79   1.35 +/- 1.2

         RP-2A                            28-Aug-08          9.2 +/- 4        0.0         ---         0.28 +/- 0.24    0.53 +/- 0.58    7.2 +/- 1.6   0.53 +/- 0.87    3.16 +/- 1.4




1232/07/DrillingReport/Tbl8_Radiological_Constituents.xls/113Feb2009
                                                 TABLE 3. SUMMARY OF RESULTS OF LABORATORY CHEMICAL ANALYSES FOR
                                                   RADIOCHEMICAL CONSTITUENTS AND PARAMETERS IN WATER SAMPLES
                                                              ROSEMONT PROJECT, PIMA COUNTY, ARIZONA
                                                                             Page 4 of 5
                                                                                                                                       a
                                                                                                 RADIOCHEMICAL CONSTITUENTS
                                                                                                      (picocurries per liter)

                                             DATE                         Adjusted
              SAMPLE SOURCE                SAMPLED           Gross α      Gross α      Gross β           Ra 226           Ra 228            U 234          U 235           U 238

                                                                                                        Water Quality Standards
         Natl. Maximum Contaminant Level                         ---         15      4 millirems/yr           5.0 (combined)                             see total U
         Az. Aquifer Water Quality Standards                     ---         15             ---               5.0 (combined)                             see total U



         RP-2B                            26-Aug-08         2.8 +/- 2.9       0.2         ---          0.6 +/- 0.17    0.56 +/- 0.62   1.9 +/- 0.95     0.0 +/- 0.76    0.72 +/- 1.1

         RP-2C                            22-Aug-08         65 +/- 7.8        0.0         ---          0.04 +/- 0.2    0.36 +/- 0.54   63 +/- 5.2      0.62 +/- 0.92    7.79 +/- 2.1

         RP-3A                             15-Jul-08        12 +/- 4.3        5.4         ---         0.03 +/- 0.18    1.5 +/- 0.62    5.8 +/- 1.8     0.17 +/- 0.81    0.59 +/- 1.2

         RP-3B                             12-Jul-08        21 +/- 4.6        0.0         ---         -0.28 +/- 0.19   1.7 +/- 0.59    21 +/- 2.9        1.1 +/- 1      5.7 +/- 1.8

         RP-4A                             01-Jul-08        5.8 +/- 3.1       0.0         ---          0.2 +/- 0.15    2.2 +/- 0.65    4.7 +/- 1.4     0.48 +/- 0.87    1.82 +/- 1.3

         RP-4B                             26-Jun-08        13 +/- 4.3        4.8         ---         0.19 +/- 0.08    3.6 +/- 0.86    4.1 +/- 1.3     0.97 +/- 0.96    3.17 +/- 1.5

         RP-5                              24-Jul-08        1.9 +/- 2.1       0.0         ---         0.05 +/- 0.08    0.77 +/- 0.64       2.2 +/- 1   0.23 +/- 0.81     0.0 +/- 1

         RP-6                              29-Jul-08        7.1 +/- 3.4       0.0         ---         0.19 +/- 0.11    1.2 +/- 0.56    15 +/- 2.5       0.0 +/- 0.76    15.8 +/- 2.7

         RP-7                             05-Aug-08         5.4 +/- 3.9       0.0         ---          0.4 +/- 0.17     1 +/- 0.56     5.1 +/- 1.4     0.36 +/- 0.84    2.05 +/- 1.3

         RP-8                             07-Aug-08         18 +/- 4.3        0.0         ---          0.31 +/- 0.1    1.2 +/- 0.57     20 +/- 2.8     0.12 +/- 0.79    3.37 +/- 1.5

         RP-9                             13-Aug-08         14 +/- 4.2        0.0         ---          0.15 +/- 0.1    0.17 +/- 0.53   11 +/- 2.2      -0.22 +/- 0.7    7.14 +/- 2

         Questa Spring                     23-Apr-08        26 +/- 5.7        1.0         ---         0.07 +/- 0.09    1.1 +/- 0.55    14 +/- 2.3        1.5 +/- 1.1    9.47 +/- 2.1
         Questa Spring                     29-Jul-08        17 +/- 3.9        5.5         ---         0.11 +/- 0.07    1.2 +/- 0.58    12 +/- 2.3      -0.11 +/- 0.73   10.5 +/- 2.3

         Rosemont Spring                   23-Apr-08        7.3 +/- 3.5       0.0         ---         -0.05 +/- 0.08   0.47 +/- 0.49    5 +/- 1.4        1.4 +/- 1      2.8 +/- 1.4
         Rosemont Spring                   29-Jul-08        4.3 +/- 2.4       0.0         ---          0.3 +/- 0.11    1.1 +/- 0.57    3.8 +/- 1.3       1 +/- 0.99     3.1 +/- 1.5




1232/07/DrillingReport/Tbl8_Radiological_Constituents.xls/113Feb2009
                                                 TABLE 3. SUMMARY OF RESULTS OF LABORATORY CHEMICAL ANALYSES FOR
                                                   RADIOCHEMICAL CONSTITUENTS AND PARAMETERS IN WATER SAMPLES
                                                              ROSEMONT PROJECT, PIMA COUNTY, ARIZONA
                                                                             Page 5 of 5
                                                                                                                                         a
                                                                                                  RADIOCHEMICAL CONSTITUENTS
                                                                                                       (picocurries per liter)

                                             DATE                         Adjusted
               SAMPLE SOURCE               SAMPLED           Gross α      Gross α       Gross β           Ra 226            Ra 228           U 234          U 235           U 238

                                                                                                         Water Quality Standards
         Natl. Maximum Contaminant Level                         ---         15       4 millirems/yr           5.0 (combined)                             see total U
         Az. Aquifer Water Quality Standards                     ---         15              ---               5.0 (combined)                             see total U



         Sycamore Spring                   30-Jul-08       0.57 +/- 1.5       0.0          ---         0.25 +/- 0.09     0.89 +/- 0.53   2.9 +/- 1.1     0.52 +/- 0.87   2.07 +/- 1.3
         Sycamore Spring dup               30-Jul-08        2.9 +/- 2.1       0.0          ---         0.14 +/- 0.07     0.39 +/- 0.49   2.7 +/- 1.1    -0.47 +/- 0.63   1.78 +/- 1.3

         (D-19-16)17ddd                    25-Apr-08        2.4 +/- 1.9       1.2          ---          0.03 +/- 0.04    1.5 +/- 0.56    1.1 +/- 0.77   -0.12 +/- 0.73    0.12 +/- 1
         (D-19-16)17ddd dup                25-Apr-08        2.1 +/- 1.8       0.0          ---         -0.02 +/- 0.06    1.5 +/- 0.53    2.4 +/- 0.97    0.56 +/- 0.87   0.85 +/- 1.1
         (D-19-16)17ddd                    25-Apr-08         1.8 +/- 2        0.0          ---          0.17 +/- 0.11    0.98 +/- 0.6     1.8 +/- 0.9    -1.3 +/- 0.36   0.25 +/- 1.1

         (D-19-16)18ddb                    25-Apr-08        9.3 +/- 3.1       0.0          ---         0.03 +/- 0.08     1.7 +/- 0.53    7.9 +/- 1.8     0.7 +/- 0.92    4.79 +/- 1.7
         (D-19-16)18ddb                    24-Jul-08        7.1 +/- 2.9       0.0          ---         0.32 +/- 0.15     0.8 +/- 0.58    6.6 +/- 1.7     0.0 +/- 0.76    4.45 +/- 1.7


         a
             Gross α = Gross alpha                                                   U 234 = Uranium 234                < = Less than
             Adjusted Gross α = Gross α minus sum of isotopic uranium                U 235 = Uranium 235                --- = Not analyzed
             Gross β = Gross beta                                                    U 238 = Uranium 238
             Ra 226 = Radium 226                                                                                        Bold Value = Exceeded Arizona Aquifer Water Quality Standard
             Ra 228 = Radium 228




1232/07/DrillingReport/Tbl8_Radiological_Constituents.xls/113Feb2009
                                           TABLE 4. SUMMARY OF RESULTS OF LABORATORY CHEMICAL ANALYSES FOR
                                                         ORGANIC COMPOUNDS IN WATER SAMPLES
                                                        ROSEMONT PROJECT, PIMA COUNTY, ARIZONA
                                                                       Page 1 of 7

                                                                                                            a
                                                                                  ORGANIC COMPOUNDS
                                                                                   (micrograms per liter)

                                                  DATE                       8260                         8270
              SAMPLE SOURCE                     SAMPLED                     VOCsb                        SVOCsc                  LAB ID     LAB

          TTBH-08-08C                            23-Jun-08       DMK = 50                   Benzoic Acid = 10*                  L70179-01   ACZ
                                                                                            Diethylphthalate = 4*

          Cienega Creek                          24-Jun-08                   ND                              ---                L70179-02   ACZ

          Upper Cienega Creek                    24-Jun-08       DMK= 10*                   Bis(2-ethylhexyl) phthalate = 6*    L70179-03   ACZ
          Upper Cienega Creek dup                24-Jun-08       DMK= 30                    Benzoic Acid = 10*                  L70179-04   ACZ

          Deering Spring                         29-Apr-08                   ND                             ND                  L68953-01   ACZ
          Deering Spring                         29-Jul-08                   ND             Bis(2-ethylhexyl) phthalate = 12*   L70885-03   ACZ

          G-35                                   29-Apr-08                   ND                             ND                  L68953-03   ACZ
          G-35                                   28-Jul-08                   ND             Bis(2-ethylhexyl) phthalate = 10*   L70885-01   ACZ
          G-35 dup                               28-Jul-08                   ND             Bis(2-ethylhexyl) phthalate = 8*    L70885-02   ACZ

          HC-1A                                  19-Aug-08       1,2,4-TMB = 4*             Benzoic acid = 10*                  L71306-01   ACZ
                                                                 Toluene = 7*
          HC-1A dup                              19-Aug-08       1,2,3-TCB = 9*                                                 L71306-02   ACZ
                                                                 1,2,4-TCB = 6*
                                                                 Hexachlorobutadiene = 9*
                                                                 Naphthalene = 6*
                                                                 Toluene = 4*

          HC-1B                                  15-Aug-08                   ND             Benzoic acid = 10*                  L71238-01   ACZ
                                                                                            Bis(2-ethylhexyl) phthalate = 5*




1232/07/DrillingReport/Tbl9_Organic_Constituents.xls/11Feb2009
                                           TABLE 4. SUMMARY OF RESULTS OF LABORATORY CHEMICAL ANALYSES FOR
                                                         ORGANIC COMPOUNDS IN WATER SAMPLES
                                                        ROSEMONT PROJECT, PIMA COUNTY, ARIZONA
                                                                       Page 2 of 7

                                                                                                                a
                                                                                     ORGANIC COMPOUNDS
                                                                                      (micrograms per liter)

                                                  DATE                      8260                              8270
              SAMPLE SOURCE                     SAMPLED                    VOCsb                             SVOCsc        LAB ID     LAB

          HC-2A                                  03-Jul-08       1,2,3-TCB = 5*                                 ND        L70340-01   ACZ
                                                                 Hexachlorobutadiene = 7*
                                                                 Naphthalene = 5*

          HC-2B                                  08-Jul-08                      ND                              ND        L70418-01   ACZ

          HC-3A                                  11-Sep-08       Toluene = 9*                                   ND        L71827-01   ACZ

          HC-3B                                  04-Sep-08       Toluene = 6*                                   ND        L71623-01   ACZ

          HC-3C                                  02-Sep-08                      ND                              ND        L71582-01   ACZ

          HC-4A                                  22-Jul-08                      ND                              ND        L70695-01   ACZ

          HC-4B                                  17-Jul-08       DMK = 80                      Benzoic acid = 65          L70588-01   ACZ
                                                                 Hexachlorobutadiene = 4*      Di-n-butyl phthlate = 3*
                                                                 Toluene = 92                  Phenol = 7*
          HC-4B dup                              17-Jul-08       DMK = 60                                        ---      L70588-02   ACZ
                                                                 Toluene = 87

          HC-5A                                  18-Jun-08                      ND                              ND        L70016-01   ACZ




1232/07/DrillingReport/Tbl9_Organic_Constituents.xls/11Feb2009
                                           TABLE 4. SUMMARY OF RESULTS OF LABORATORY CHEMICAL ANALYSES FOR
                                                         ORGANIC COMPOUNDS IN WATER SAMPLES
                                                        ROSEMONT PROJECT, PIMA COUNTY, ARIZONA
                                                                       Page 3 of 7

                                                                                                             a
                                                                                   ORGANIC COMPOUNDS
                                                                                    (micrograms per liter)

                                                  DATE                      8260                           8270
              SAMPLE SOURCE                     SAMPLED                    VOCsb                          SVOCsc                 LAB ID     LAB

          HC-5B                                  24-Jun-08       DMK= 20*                    2-methylphenol = 2*                L70124-01   ACZ
                                                                 1,2,3-TCB = 6*               3,4-methylphenol = 7*
                                                                 1,2,4-TCB = 4*              Benzoic acid = 70
                                                                 Hexachlorobutadiene = 12    Bis(2-chloroethoxy)methane = 9*
                                                                 Naphthalene = 8*            Naphthalene = 2*
                                                                                             Phenol = 4*

          HV-1                                   18-Sep-07                    ND                             ---                L65117-01   ACZ
          HV-1                                   24-Apr-08                    ND                             ND                 L68913-01   ACZ
          HV-1 dup                               24-Apr-08                    ND                             ND                 L68913-02   ACZ
          HV-1                                   24-Jul-08                    ND             Bis(2-ethylhexyl) phthalate = 4*   L70755-06   ACZ

          HV-2                                   18-Sep-07       DCM = 7.0*                                  ---                L65117-02   ACZ
          HV-2                                   24-Apr-08                    ND                             ND                 L68913-01   ACZ
          HV-2                                   24-Jul-08                    ND                             ND                 L70755-05   ACZ

          MC-1 Spring                            23-Jul-08                    ND                             ND                 L70755-01   ACZ

          MC-2 Spring                            22-Apr-08                    ND                             ND                 L68853-03   ACZ
          MC-2 Spring                            23-Jul-08       1,2,3-TCB = 7*                              ND                 L70755-02   ACZ
                                                                 1,2,4-TCB = 4*
                                                                 Hexachlorobutadiene = 8*
                                                                 Naphthalene = 5*

          PC-1                                   25-May-07                    ND                             ND                 L62859-01   ACZ




1232/07/DrillingReport/Tbl9_Organic_Constituents.xls/11Feb2009
                                           TABLE 4. SUMMARY OF RESULTS OF LABORATORY CHEMICAL ANALYSES FOR
                                                         ORGANIC COMPOUNDS IN WATER SAMPLES
                                                        ROSEMONT PROJECT, PIMA COUNTY, ARIZONA
                                                                       Page 4 of 7

                                                                                                               a
                                                                                     ORGANIC COMPOUNDS
                                                                                      (micrograms per liter)

                                                  DATE                        8260                           8270
              SAMPLE SOURCE                     SAMPLED                      VOCsb                          SVOCsc                  LAB ID     LAB

          PC-2                                   16-May-07                      ND                             ND                  L62687-01   ACZ
          PC-2                                   22-Apr-08       2-Butanone = 60                               ND                  L68853-02   ACZ
          PC-2                                    25-Jul-08      DMK = 60                                      ND                  L70755-07   ACZ

          PC-3                                    1-Jun-07       DMK = 60                                      ND                  L62992-01   ACZ
                                                                 Toluene = 34

          PC-4                                   18-May-07                      ND                             ND                  L62751-01   ACZ

          PC-5                                   21-Oct-08       DMK = 20*                     Diethylphthalate = 9                L72632-01   ACZ
                                                                                               Di-n-butyl-phthalate = 7*
          PC-5-922-UP                            21-Oct-08       DMK = 20*                     Diethylphthalate = 8*               L72639-01   ACZ
                                                                                               Di-n-butyl-phthalate = 7*
          PC-5-1516-LP                           23-Oct-08       DMK = 20*                     Diethylphthalate = 10*              L72677-01   ACZ
                                                                 Toluene = 59                  Di-n-butyl-phthalate = 7*

          PC-6                                   12-Oct-08       Toluene = 5*                                  ND                  L72438-01   ACZ
          PC-6-522-UP                            13-Oct-08                      ND                             ND                  L72463-01   ACZ
          PC-6-1002-MP                           14-Oct-08                      ND                             ND                  L72496-01   ACZ
          PC-6-1502-LP                           16-Oct-08       Toluene = 6*                  Bis(2-ethylhexyl) phthalate = 10*   L72561-01   ACZ

          PC-7                                    2-Oct-08                      ND             Diethylphthalate = 3*               L72215-01   ACZ
          PC-7 602-UP                             3-Oct-08                      ND                             ND                  L72248-01   ACZ
          PC-7 902-MP                             4-Oct-08                      ND                             ND                  L72247-01   ACZ
          PC-7 1422-LP                            7-Oct-08                      ND                             ND                  L72329-01   ACZ




1232/07/DrillingReport/Tbl9_Organic_Constituents.xls/11Feb2009
                                           TABLE 4. SUMMARY OF RESULTS OF LABORATORY CHEMICAL ANALYSES FOR
                                                         ORGANIC COMPOUNDS IN WATER SAMPLES
                                                        ROSEMONT PROJECT, PIMA COUNTY, ARIZONA
                                                                       Page 5 of 7

                                                                                                               a
                                                                                     ORGANIC COMPOUNDS
                                                                                      (micrograms per liter)

                                                  DATE                        8260                          8270
              SAMPLE SOURCE                     SAMPLED                      VOCsb                         SVOCsc                   LAB ID     LAB

          PC-8                                   23-Sep-08                      ND                             ND                  L71996-01   ACZ
          PC-8 863-UP                            25-Sep-08                      ND                             ND                  L72069-01   ACZ
          PC-8 1930-LP                           27-Sep-08                      ND                             ND                  L72094-01   ACZ

          P-899                                  21-Apr-08       DMK = 20*                                     ND                  L68853-01   ACZ
          P-899                                  25-Jul-08                      ND                             ND                  L70755-08   ACZ

          RP-2A                                  28-Aug-08       DMK = 10*                                     ND                  L71524-01   ACZ
                                                                 Toluene = 141

          RP-2B                                  26-Aug-08       Toluene = 10                  Bis(2-ethylhexyl) phthalate = 13*   L71459-01   ACZ

          RP-2C                                  22-Aug-08       Toluene = 4*                                  ND                  L71404-01   ACZ

          RP-3A                                  15-Jul-08       Toluene = 6*                                  ND                  L70535-01   ACZ

          RP-3B                                  12-Jul-08       1,2,3-TCB = 5*                                ND                  L70472-01   ACZ
                                                                 Hexachlorobutadiene = 8*
                                                                 Naphthalene = 5*

          RP-4A                                  01-Jul-08                      ND             DMK = 10*                           L70297-01   ACZ

          RP-4B                                  26-Jun-08                      ND             Benzoic Acid = 10*                  L70195-01   ACZ




1232/07/DrillingReport/Tbl9_Organic_Constituents.xls/11Feb2009
                                           TABLE 4. SUMMARY OF RESULTS OF LABORATORY CHEMICAL ANALYSES FOR
                                                         ORGANIC COMPOUNDS IN WATER SAMPLES
                                                        ROSEMONT PROJECT, PIMA COUNTY, ARIZONA
                                                                       Page 6 of 7

                                                                                                               a
                                                                                     ORGANIC COMPOUNDS
                                                                                      (micrograms per liter)

                                                  DATE                        8260                          8270
              SAMPLE SOURCE                     SAMPLED                      VOCsb                         SVOCsc                   LAB ID     LAB

          RP-5                                   24-Jul-08       1,2,3-TCB = 7*                                ND                  L70756-01   ACZ
                                                                 1,2,4-TCB = 6*
                                                                 Hexachlorobutadiene = 9*
                                                                 Naphthalene = 5*
                                                                 Toluene = 4*

          RP-6                                   29-Jul-08       DMK = 20*                     Bis(2-ethylhexyl) phthalate = 9*    L70855-01   ACZ

          RP-7                                                   Toluene = 36                  Bis(2-ethylhexyl) phthalate = 42    L70986-01   ACZ
                                                                                               Di-n-butyl-phthalate = 4*

          RP-8                                   07-Aug-08                      ND             Bis(2-ethylhexyl) phthalate = 31    L71043-01   ACZ

          RP-9                                   13-Aug-08                      ND             Bis(2-ethylhexyl) phthalate = 21    L71193-01   ACZ

          Questa Spring                          23-Apr-08                      ND             Di-n-butyl phthlate = 4*            L68853-04   ACZ
          Questa Spring                          29-Jul-08                      ND             Bis(2-ethylhexyl) phthalate = 11*   L70885-05   ACZ

          Rosemont Spring                        23-Apr-08                      ND             Di-n-butyl phthlate = 4*            L68853-05   ACZ
          Rosemont Spring                        29-Jul-08                      ND             Bis(2-ethylhexyl) phthalate = 10*   L70885-04   ACZ

          Sycamore Spring                        30-Jul-08                      ND             Bis(2-ethylhexyl) phthalate = 12*   L70885-06   ACZ
          Sycamore Spring dup                    30-Jul-08       1,2,3-TCB = 9*                Bis(2-ethylhexyl) phthalate = 14*   L70885-07   ACZ
                                                                 1,2,4-TCB = 6*
                                                                 Hexachlorobutadiene = 9*
                                                                 Naphthalene = 6*




1232/07/DrillingReport/Tbl9_Organic_Constituents.xls/11Feb2009
                                           TABLE 4. SUMMARY OF RESULTS OF LABORATORY CHEMICAL ANALYSES FOR
                                                         ORGANIC COMPOUNDS IN WATER SAMPLES
                                                        ROSEMONT PROJECT, PIMA COUNTY, ARIZONA
                                                                       Page 7 of 7

                                                                                                               a
                                                                                    ORGANIC COMPOUNDS
                                                                                     (micrograms per liter)

                                                  DATE                        8260                           8270
              SAMPLE SOURCE                     SAMPLED                      VOCsb                          SVOCsc                           LAB ID      LAB

          (D-19-16)17ddd                         25-Apr-08       Hexachlorobutadiene = 6*                      ND                          L68913-06     ACZ
          (D-19-16)17ddd dup                     25-Apr-08                     ND                              ND                          L68913-07     ACZ
          (D-19-16)17ddd                         24-Jul-08                     ND                              ND                          L70755-04     ACZ

          (D-19-16)18ddb                         25-Apr-08                     ND             Di-n-butyl phthlate = 3*                     L68913-05     ACZ
          (D-19-16)18ddb                         24-Jul-08                     ND                              ND                          L70755-03     ACZ


                                                                 a                                                             b
          ND = Not detected                                          DCM = dichloromethane (methylene chloride)                    Volatile organic compounds
                                                                                                                               c
          --- = Not analyzed                                         DMK = dimethyl ketone (acetone)                               Semi-volatile organic compounds
                                                                     1,2,3-TCB = 1,2,3-Trichlorobenzene
                                                                     1,2,4-TCB = 1,2,4-Trichlorobenzene
                                                                     1,2,4-TMB = 1,2,4-Trimethylbenzene


          Note: Unless specifically indicated, none of the method compounds were detected above the minimum detection limit.

          * = detected concentration is between the mimimum detection limit and practical quantitation limit

          Bold Value = Exceeded water quality standard                                        Similar concentration detected in the method and/or trip blank
          MCL for dichloromethane = 5 μg/L
          MCL for Bis(2-ethylhexyl) phthalate = 6 μg/L                                        Documented laboratory contamination




1232/07/DrillingReport/Tbl9_Organic_Constituents.xls/11Feb2009
                             APPENDIX L

SUMMARY OF LABORATORY CHEMICAL ANALYSES
                        RP AND HC WELLS
                                                                               TABLE 1. SUMMARY OF LABORATORY RESULTS
                                                                                  ANALYSIS OF COMMON CONSTITUENTS
                                                                              GROUNDWATER SAMPLES FROM RP AND HC WELLS

                                                                            ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA


                                                                                                         COMMON CONSTITUENTS                                                                                  FIELD PARAMETERS
                                                                                                     Total                           NO3/NO2              Hardness
                       DATE          Ca          Mg         Na        K       HCO3        CO3                       Cl        SO4                  F                     TDS       pH - Lab     EC       TEMP      pH      EC
SAMPLE SOURCE                                                                                      Alkalinity                         as N                as CaCO3
                     SAMPLED
                                                                                                                                                                                                          o
                                                                                                       mg/L                                                                          SU       umhos/cm        C    SU    umhos/cm
                                                                                                                              Water Quality Standards
Natl. Maximum Contaminant Level      ---          ---       ---       ---       ---        ---         ---          ---        ---     10        4.0          ---            ---     ---         ---      ---      ---      ---
AZ Aquifer Water Quality Standards   ---          ---       ---       ---       ---        ---         ---          ---        ---     10        4.0          ---            ---     ---         ---      ---      ---      ---

RP-2A                 8/28/2008      15.6        3.3       157       1.1*      223        6.0*        193           40        217      0.37       1.5         53         510         8.4       2,340     27.6     8.23     830

RP-2B                 8/26/2008      45.5        15.8      109       1.2*      309        7.2*        265          17.4       96.5     0.03*     0.3*        179         450         8.4        732      24.2     7.67     743

RP-2C                 8/22/2008      8.8         1.8       150       0.8*      278        14.4        252          15.6       67.4     0.07*     0.3*         29         430         8.7        689      22.6     8.54     682

RP-3A                 7/15/2008      53.7        9.3       39.3      1.1*      224        7.2         197          23.0       9.8      0.77      0.4*        172         280         8.4        484      20.7     7.46     472

RP-3B                 7/12/2008      31.6        4.6       64.9      1.1*      217        7.8         191          17.1       5.9      0.35      0.2*         98         250         8.5        432      23.4     7.63     430

RP-4A                 7/1/2008       35.3        6.9       34.0      0.8*      183        5.4         159          8.4        6.1      0.78      0.3*        117         190         8.5        355      21.5     7.80     339

RP-4B                 6/26/2008      12.8        2.6       156       1.5*      176        7.8         157          46.9       141      0.05*      1.3         43         450         8.7        783      24.4     8.41     697

HC-4A                 7/22/2008      73.1        17.0      41.3      1.5*      361        <2          296          10.7       8.3      0.70      0.3*        253         340         8.2        621      21.1     7.22     606

HC-4B                 7/17/2008      28.6        7.7       82.7       2.9      273        6.6         235          12*        16*     <0.02       <1         103         300         8.5        540      27.7     8.08     520

HC-5A                 6/18/2008      124         31.4      18.0       2.3      257        <2          211          16.8       190      0.48       1.4        439         610         8.0        862      20.1     7.17     798

HC-5B                 6/24/2008      85.2        21.9      360        2.7      98.8       4.2          88           60        850     <0.02       3*         303        1,480        8.5       2,040     26.0     8.30    1,972


                                           Notes:
                                            < Less than
                                           --- Not Applicable
                                             * detected concentration is between the minimum
                                               detection limit and practical quantitation limit
                                              mg/L = milligrams per liter
                                              Ca = Calcium                   CO3 = Carbonate                                         NO3/NO2 = Nitrate/nitrite as Nitrogen
                                              Mg = Magnesium                 Total Alkalinity = Total Alkalinity as CaCO3            F = Fluoride
                                              Na = Sodium                    Cl = Chloride                                           TDS = Total dissolved solids
                                              K = Potassium                  SO4 = Sulfate                                           EC = Electrical conductivity
                                              HCO3 = Bicarbonate




                                                                                                                Page 1 of 1
                                                                            TABLE 2. SUMMARY OF LABORATORY RESULTS
                                                                     ANALYSES OF TRACE CONSTITUENTS IN GROUNDWATER SAMPLES
                                                                                      FROM RP AND HC WELLS

                                                                          ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA


                                                                                                                        TRACE CONSTITUENTSa
 SAMPLE                                Ag           Al          As      Ba        Be       Cd      Cr     CN     Co       Cu      Fe       Hg      Mn     Mo        Ni     Pb       Sb      Se      Tl      U      Zn
                DATE SAMPLED
 SOURCE                                                                                                                           mg/L
                                                                                                                        Water Quality Standards
Natl. Maximum Contaminant Level        ---          ---     0.01         2       0.004    0.005    0.1     0.2   ---     1.3b      ---    0.002     ---       ---   ---   0.015b   0.006    0.05   0.002   0.030   ---
Az. Aquifer Water Quality Standards    ---          ---     0.05         2       0.004    0.005    0.1     0.2   ---      ---      ---    0.002     ---       ---   0.1    0.05    0.006    0.05   0.002     ---   ---

RP-2A              8/28/2008          <0.01       0.11*    0.0266      0.009*   <0.0001 <0.0001 <0.01 <0.005 <0.01 <0.01          0.1    <0.0002 0.036 0.03* <0.01 0.0005* 0.0031          0.0011 <0.0001 0.0145 0.05*

RP-2B              8/26/2008          <0.01       0.05*    0.0137      0.053    <0.0001 <0.0001 <0.01 <0.005 <0.01 <0.01         <0.02   <0.0002 0.074 <0.01 <0.01 0.0001* 0.0008* <0.0001 <0.0001 0.0034 <0.01

RP-2C              8/22/2008          <0.01       <0.3     0.0052      0.041    <0.0001 <0.0001 <0.01 <0.005 <0.01 <0.01         0.03*   <0.0002 0.059 <0.01 <0.01 0.0001* 0.0006* 0.0002* <0.0001 0.0261 <0.01

RP-3A              7/15/2008           ---        0.03*    0.0050      0.095    <0.0001 <0.0001 <0.01 <0.005 <0.01 <0.01         <0.02   <0.0002 0.006* <0.01 <0.01 0.0005* <0.0004 0.0003* <0.0001 0.0022 0.04*

RP-3B              7/12/2008          <0.01 <0.03         0.0006*      0.113    <0.0001 <0.0001 <0.01 <0.005 <0.01 <0.01          0.10   <0.0002 0.017* <0.01 0.03* 0.0003* <0.0004 0.0002* <0.0001 0.0155 0.02*

RP-4A               7/1/2008          <0.01 <0.03          0.0026      0.021    <0.0001 <0.0001 <0.01 <0.005 <0.01 <0.01         0.02*   <0.0002 0.042 <0.01 0.01* <0.0001 <0.0004 <0.0001 <0.0001 0.0022 0.02*

RP-4B              6/26/2008          <0.01 <0.03          0.0012      0.021    <0.0001 <0.0001 <0.01 <0.005 <0.01 <0.01          0.28   0.0002* 0.086 0.02* <0.01 <0.0001 <0.0004 0.0003* <0.0001 0.0086 <0.01

HC-4A              7/22/2008          <0.01 <0.03          0.0030      0.008*   <0.0001 <0.0001 0.01* <0.005 <0.01 <0.01          0.26   <0.0002 0.030* <0.01 <0.01 0.0002* <0.0004 0.0006 0.0002* 0.0029 0.03*

HC-4B              7/17/2008          <0.01 <0.03         0.0006*      0.024    <0.0001 <0.0001 <0.01 <0.005 <0.01 <0.01          1.94   <0.0002 0.097 0.02* <0.01 <0.0001 <0.0004 <0.0001 <0.0001 0.0015 <0.01

HC-5A              6/18/2008          <0.01 <0.03          0.0151      0.013*   <0.0001 0.0008 <0.01 <0.005 <0.01 <0.01          0.04*   <0.0002 0.013* 0.07 0.02* 0.0009 0.0004* 0.0015 <0.0001 0.0029 0.02*

HC-5B              6/24/2008          <0.01 <0.03         <0.0005      0.021    <0.0001 <0.0001 <0.01 <0.005 <0.01 <0.01          2.43   <0.0002 0.211 0.02* <0.01 0.0003* <0.0004 0.0001* <0.0001 <0.0001 0.01*


                                         Notes:
                                          < Less than
                                         --- Not applicable

                                                 mg/L = milligrams per liter

                                                 Bold Values = Exceeded National Maximum Contaminant Level

                                             a
                                                 Ag = Silver          Be = Beryllium     Co = Cobalt     Mn = Manganese         Sb = Antimony     Zn = Zinc
                                                 Al = Aluminum        Cd = Cadmium       Cu = Copper     Mo = Molybdenum        Se - Selenium
                                                 As = Arsenic         Cr = Chromium      Fe = Iron       Ni = Nickel            Tl = Thallium
                                                 Ba = Barium          CN = Cyanide       Hg = Mercury    Pb = Lead              U = Uranium

                                             b
                                                 Action level

                                             * detected concentration is between the minimum
                                               detection limit and practical quantitation limit




                                                                                                          Page 1 of 1
                            TABLE 3. SUMMARY OF LABORATORY RESULTS ANALYSES
                 RADIOLOGICAL CONSTITUENTS IN GROUNDWATER SAMPLES FROM RP AND HC WELLS

                                     ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA

                                                                    RADIOLOGICAL CONSTITUENTS
                                                     Adjusted
                          DATE         Gross α                     Ra 226          Ra 228            U234            U235            U238
   SAMPLE SOURCE                                     Gross α
                        SAMPLED                                                  pCi/L
                                                                         Water Quality Standards
Natl. Maximum Contaminant Level           ---          15             5.0 (combined)                              see total U
AZ Aquifer Water Quality Standards        ---          15             5.0 (combined)                              see total U

RP-2A                   8/28/2008      9.2 +/- 4       0.0      0.28 +/- 0.24    0.53 +/- 0.58    7.2 +/- 1.6    0.53 +/- 0.87    3.16 +/- 1.4

RP-2B                   8/26/2008     2.8 +/- 2.9      0.2       0.6 +/- 0.17    0.56 +/- 0.62    1.9 +/- 0.95    0.0 +/- 0.76    0.72 +/- 1.1

RP-2C                   8/22/2008     65 +/- 7.8       0.0       0.04 +/- 0.2    0.36 +/- 0.54     63 +/- 5.2    0.62 +/- 0.92    7.79 +/- 2.1

RP-3A                   7/15/2008     12 +/- 4.3       5.4      0.03 +/- 0.18    1.5 +/- 0.62     5.8 +/- 1.8    0.17 +/- 0.81    0.59 +/- 1.2

RP-3B                   7/12/2008     21 +/- 4.6       0.0      -0.28 +/- 0.19   1.7 +/- 0.59      21 +/- 2.9      1.1 +/- 1      5.7 +/- 1.8

RP-4A                    7/1/2008     5.8 +/- 3.1      0.0       0.2 +/- 0.15    2.2 +/- 0.65     4.7 +/- 1.4    0.48 +/- 0.87    1.82 +/- 1.3

RP-4B                   6/26/2008     13 +/- 4.3       4.8      0.19 +/- 0.08    3.6 +/- 0.86     4.1 +/- 1.3    0.97 +/- 0.96    3.17 +/- 1.5

HC-4A                   7/22/2008     11 +/- 3.6       0.0      0.22 +/- 0.11    0.95 +/- 0.62     14 +/- 2.6    -0.59 +/- 0.56   1.09 +/- 1.2

HC-4B                   7/17/2008     1.6 +/- 2.5      0.0      0.09 +/- 0.13    0.86 +/- 0.63     5 +/- 1.5     0.45 +/- 0.87    0.79 +/- 1.2

HC-5A                   6/18/2008     0.49 +/- 2.1     0.0      0.15 +/- 0.09    3.3 +/- 0.61     2.7 +/- 0.97    0.0 +/- 0.76    1.43 +/- 1.2

HC-5B                   6/24/2008     5.3 +/- 4.4      5.2      0.02 +/- 0.14    0.97 +/- 0.58   0.11 +/- 0.49   -0.11 +/- 0.73 -0.11 +/- 0.99


                                Notes:
                                < Less Than                     Gross α = Gross alpha            U234 = Uranium 234
                               --- Not Applicable               Ra 226 = Radium 226              U235 = Uranium 235
                                                                Ra 228 = Radium 228              U238 = Uranium 238




                                                             Page 1 of 1
                          TABLE 4. SUMMARY OF LABORATORY RESULTS ANALYSES
                  ORGANIC COMPOUNDS IN GROUNDWATER SAMPLES FROM RP AND HC WELLS

                              ROSEMONT COPPER PROJECT, PIMA COUNTY, ARIZONA

                                                                         ORGANIC COMPOUNDS
                                 DATE                           8260                                  8270
     SAMPLE SOURCE
                               SAMPLED                         VOCsa                                 SVOCsb
                                                                μg/L                                  μg/L
                                                DMK = 10*
  RP-2A                        8/28/2008        Toluene = 141                                           ND
  RP-2B                        8/26/2008        Toluene = 10                          Bis(2-ethylhexyl) phthalate = 13*
  RP-2C                        8/22/2008        Toluene = 4*                                          ND
  RP-3A                        7/15/2008        Toluene = 6*                                          ND
                                                1,2,3-TCB = 5*
  RP-3B                        7/12/2008        Hexachlorobutadiene = 8*                                ND
                                                Naphthalene = 5*
  RP-4A                        7/1/2008                         ND                    DMK = 10*
  RP-4B                        6/26/2008                        ND                    Benzoic Acid = 10*
  HC-4A                        7/22/2008                        ND                                      ND
                                                DMK = 80                              Benzoic acid = 65
  HC-4B                        7/17/2008        Hexachlorobutadiene = 4*              Di-n-butyl phthalate = 3*
                                                Toluene = 92                          Phenol = 7*
                                                DMK = 60
  HC-4B dup                    7/17/2008                                                                ---
                                                Toluene = 87
  HC-5A                        6/18/2008                        ND                                     ND
                                                DMK= 20*                              2-methylphenol = 2*
                                                1,2,3-TCB = 6*                        3,4-methylphenol = 7*
                                                1,2,4-TCB = 4*                        Benzoic acid = 70
  HC-5B                        6/24/2008
                                                Hexachlorobutadiene = 12              Bis(2-chloroethoxy)methane = 9*
                                                Naphthalene = 8*                      Naphthalene = 2*
                                                                                      Phenol = 4*
Notes:
a
  Volatile organic compounds                    MCL for dichloromethane = 5 μg/L
b
  Semi-volatile organic compounds               MCL for Bis(2-ethylhexyl) phthalate = 6 μg/L
* detected concentration is between the
  minimum detection limit and practical         Similar concentration detected in the method and/or trip blank
  Bold Value = Exceeded Water Quality Standard
  Unless specifically indicated, none of the method compounds were detected above the minimum detection limit.



                                                      Page 1 of 1
                 APPENDIX M

DRY STACK TAILINGS FACILITIES
          STABILITY ANALYSIS
Technical Memorandum

To:             Troy Meyer
Cc:
From:           Alyssa Kohlman, Ana Mohseni, Jiny Carrera
Project No: 320614
Subject:        Liquefaction and Stability Analyses- Rosemont Dry Tailings Facility
Date:           June 12, 2007


1.0     Introduction

This memo presents the results of liquefaction and slope stability analyses of the proposed dry
tailings facility at the Rosemont Mine in Arizona. The attached sections show the generalized
facility geometry used for this analysis and are based on the North Dry Stack maximum section
and the Central Drain located between the North and South Dry Stack. The North Dry Stack
generalized section assumes a natural ground slope of seven percent. The downstream side
embankment of the dry stack tailings facility will consist of a 100 foot high starter buttress
constructed from waste rock with ten 50 foot upstream waste rock raises. The upstream side of
the facility will consist of a 25 foot starter buttress and 25 foot high upstream raises. Tailings
directly beneath the waste rock raise footprints will be compacted to provide a suitable foundation
and to preclude the possibility of liquefaction of the tailings in these areas.

The Central Drain will be constructed between the North and South Stack to convey surface
water from the drainage above the process plant area. This drain will extend to the top of the
south tailings stack and allow surface water from the top of the stack to be conveyed through the
drain following closure. The rock drain will be approximately 450 feet high and will be constructed
mainly from waste rock. The attached sections show a generalized version of the Central Drain
with one strength function for all of the waste rock, though during construction different portions of
the drain will have different specifications for the waste rock used for different portions of the
drain. The sections also show the maximum overall slope of 1.6H:1V, not including benches or
interbench slopes.

2.0     Design Criteria

Design of the tailings disposal facility is governed by the requirements of Arizona BADCT,
adjusted for site-specific conditions. Based on these requirements, the minimum stability criteria
adopted for the facility are presented in Table 1.




                                                                                              Tetra Tech
                                                           603 Park Point Drive, Suite 250, Golden, CO 80410
                                                      Tel 303.217.5700 Fax 303.217.5705 www.tetratech.com
                            Table 1 - Minimum Stability Requirements
                                                      Required Minimum
                            Analysis Condition
                                                        Factor of Safety
                                   Static                    1.50
                                Pseudostatic                 1.10
                                 Temporary,
                                                             1.30
                         End-of Construction (Static)

The site seismicity was analyzed for two levels of ground motion: the maximum probable
earthquake (MPE) and the maximum credible earthquake (MCE). These values are 0.036g for
the MPE and 0.326g for the MCE. Applicable regulations require that the MCE ground motion is
applied to analysis of the tailings disposal facility. A detailed seismicity study for the Rosemont
site is provided in a separate technical memo.

Due the construction of a compliance dam below the tailings facility, the foundation of the tailings
dam on the downstream side may occasionally be saturated to an elevation of 4597.5 feet. This
saturation was incorporated into the analyses.

3.0      Methods

Susceptibility of the tailings to liquefaction was evaluated using an initial screening method
proposed by Bray et. al (2004), which reviewed several published criteria for liquefaction potential
of fine-grained soils. Based on the results of their study, a fine-grained soil is considered to be
susceptible to liquefaction or cyclic mobility if the ratio of the water content (wc) to the liquid limit
(LL) is equal to or greater than 0.85 (wc/LL ≥ 0.85), and the soil’s plasticity index (PI) is equal to
or less than 12 (PI ≤ 12). Soils with 12 < PI ≤ 20 and wc/LL ≥ 0.80 may be moderately susceptible
to liquefaction or cyclic mobility.

To evaluate the effect of liquefaction on the proposed facility post-liquefaction analyses were
conducted using residual strength values to check against the possibility of a catastrophic flow
slide failure. These analyses incorporated no additional earthquake loading beyond that required
to trigger liquefaction as a check against development of excessive deformations or flow slide
failures. This approach is consistent with FEMA (2005) and current California Department of
Water Resources recommendations.

The stability analyses were performed using the SLOPE/W component of GeoStudio 2004
(Version 6.20) by GEO-SLOPE International, Ltd. SLOPE/W was used to conduct limiting
equilibrium analyses using the general limit equilibrium (GLE) method, which satisfies both force
and moment equilibrium. This program incorporates search routines to determine the critical,
lowest factor-of-safety failure surface. SLOPE/W was used to conduct analyses of the facility’s
stability considering global stability of the waste rock berms, tailings, and foundation materials.

To evaluate the performance of the facility under seismic loading a pseudo-static analysis was
performed. The pseudo-static analyses subject the two-dimensional sliding mass to a horizontal
acceleration equal to an earthquake coefficient multiplied by the acceleration of gravity. To allow
for damping and attenuation of the bedrock acceleration within a slope or embankment, and to
account for the rigid body pseudo-static model, the pseudo-static coefficient used in the model




Liquefaction and Stability Analyses                                                                    2
was a conservatively assumed to be equal to 2/3 of the peak ground acceleration of the design
earthquake (the MCE in this case), or 0.217g.

Geomechanical properties for the waste rock materials were determined from field and laboratory
testing, experience with similar materials, and professional judgment. The material properties
used in the analyses are presented in Table 2.

                                      Table 2 - Material Properties
                                                                                              Unit
  Material                                                            Phi     Cohesion
                  Description             Strength Model                                     Weight
     #
                                                                 degrees         psf          pcf
      1           Dry Tailings             Mohr-Coulomb            26            400          120
                  Compacted
      2                                    Mohr-Coulomb            29.9            0           132
                    Tailings
      3           Waste Rock               Mohr-Coulomb               43           0           120
      4            Alluvium                Mohr-Coulomb               39         2000          127
                  Weathered
      5                                    Mohr-Coulomb               40         3500          160
                   Bedrock
                                                                      Tau/Sigma Ratio
                                             Strength =
      6        Liquefied Tailings                                          (Su/P)              120
                                           F(overburden)
                                                                            0.1

4.0       Dry Tailings Liquefaction Potential

Based on laboratory test results, the liquid limit of the tailings is 23.5 and the PI is 7.3. Therefore,
the soil is potentially susceptible to liquefaction per the PI criteria proposed by Bray (PI ≤ 12).
However, liquefaction may occur only at moisture contents ≥ 18.8% (0.80 LL). Since the tailings
are proposed to be “dry-stacked” at a moisture content generally below 16% (for acceptable
handleability and trafficability during conveyor transport and placement), the tailings will not
normally be susceptible to liquefaction.

Limited higher moisture zones within the tailings mass created by meteoric water may potentially
occur. These layers could form discrete liquefaction-susceptible layers in the tailings mass.
Following liquefaction, these tailings will exhibit nominal undrained shear strength. Ishihara (1993
and 1996) indicates an average Su/s’vc ratio of 0.10 for non-plastic silty sand and tailings
materials.

Post-liquefaction analyses of the tailings facility were performed to evaluate the effect of small (up
to 5 foot thick), saturated, liquefiable layers in the tailings mass. The liquefied layers were
modeled at selected stages of dry stack development to verify stability throughout the life of the
facility and at closure. The selection of the liquefiable tailings depth (5 feet) is considered
conservative since it is unlikely that rainfall will penetrate deeply into the surface of the tailings
prior to being evaporated or dispersed by capillary tension in the tailings mass.




Liquefaction and Stability Analyses                                                                   3
5.0      Results

5.1      North Dry Stack Maximum Section

Based on the results of the analyses, the presence of small liquefied tailings layers encapsulated
in the facility reduces the factor of safety against global slope stability by 0.70 to 1.0 but does not
result in slope failure. Both the upstream and downstream embankments can tolerate five-foot
thick liquefied layers of tailings at the top of each stage analyzed and maintain a safety factor
greater than unity. The stability of the inside (upstream) face the buttress founded on tailings was
also analyzed with the uppermost tailings assumed to be liquefied. This did not result in a critical
failure mode, as the safety factor for this scenario did not change.

The stability analyses indicate a minimum post-liquefaction safety factor of 1.13 for the maximum
embankment section in the raised configuration considering a 5 foot thick liquefied tailings layer
at the Stage 2 level in the tailings. With a safety factor greater than unity using conservative post-
liquefaction residual strengths the analyses indicate that a flow slide failure would not be triggered
in the event of liquefaction of the 5 foot thick layer in the tailings. As an added measure against
potential deformation of the outer waste rock buttress constructed on tailings using the upstream
method, compaction of the tailings below the waste rock buttress is recommended. This measure
will result in a higher density material, thereby reducing the liquefaction susceptibility of the
tailings that form the foundation for subsequent waste rock buttress.

Both the static and pseudostatic factors of safety against a global failure were found to be
adequate for the upstream and downstream embankments of the facility, as well as the upstream
face of each side. Failure through the foundation materials does not represent a critical failure
mode for the facility based on the material properties used in the analysis.

Table 3 shows the results of the static and pseudostatic stability analyses and Table 4 presents
the post-liquefaction analyses results. Graphic representations of the stability results are
attached.

                 Table 3 - Results of North Dry Stack Slope Stability Analyses
                                                                     Safety Factor
                         Scenario
                                                             Static      Pseudostatic (MCE)
      Downstream Side of Impoundment, Global Failure          2.05              1.11
            Upstream Face of Downstream Side
                                                              1.40              1. 11
              (End-of-construction of last lift)
       Upstream Side of Impoundment, Global Failure           2.13               1.15
             Upstream Face of Upstream Side
                                                              1.42               1.11
              (End-of-construction of last lift)




Liquefaction and Stability Analyses                                                                  4
                Table 4 - Results of North Dry Stack Post-Liquefaction Analyses

                            Scenario                                      Safety Factor

             Upstream Face of Downstream Side
                                                                               1.53
               (End-of-construction of last lift)
                      Downstream Side,
                                                                               1.27
          Block Failure of Liquefied Stage 1 Surface
                      Downstream Side,
                                                                               1.13
          Block Failure of Liquefied Stage 2 Surface
                      Downstream Side,
                                                                               1.20
          Block Failure of Liquefied Stage 3 Surface
                      Downstream Side,
                                                                               1.27
          Block Failure of Liquefied Stage 4 Surface
              Upstream Face of Upstream Side
                                                                               1.42
               (End-of-construction of last lift)
                       Upstream Side,
                                                                               1.19
          Block Failure of Liquefied Stage 1 Surface
                       Upstream Side,
                                                                               1.26
          Block Failure of Liquefied Stage 2 Surface
                       Upstream Side,
                                                                               1.32
          Block Failure of Liquefied Stage 3 Surface
                       Upstream Side,
                                                                               1.48
          Block Failure of Liquefied Stage 4 Surface

5.2      Central Drain Section

Based on the results of the analyses, the presence of small liquefied tailings layers encapsulated
in the tailings does not affect the stability of the Central Drain. The stability analyses indicate a
minimum post-liquefaction safety factor of 1.98. With a safety factor greater than unity using
conservative post-liquefaction residual strengths the analyses indicate that a flow slide failure
would not be triggered in the event of liquefaction of any of the layers analyzed.

Both the static and pseudostatic factors of safety against a global failure were found to be
adequate for south side of the central drain. Failure through the foundation materials does not
represent a critical failure mode for the facility based on the material properties used in the
analysis.

Table 5 shows the results of the static and pseudostatic stability analyses of the Central Drain.
Graphic representations of the stability results are attached to this memo.




Liquefaction and Stability Analyses                                                                5
                     Table 5 – Results of Slope Stability for the Central Drain
                                                                     Safety Factor
                        Scenario
                                                        Static        Pseudostatic (MCE)
          South Side of Drain - Global Failure           2.03                  1.25

      South Side of Drain – Upper Liquefied layer        1.98                     N/A

      South Side of Drain – Lower Liquefied layer        1.98                     N/A

6.0      References

Bray, J.D., Sancio, R.B., Riemer, M.F., and Durgunoglu, T., 2004; “Liquefaction Susceptibility of
Fine-Grained Soil, ”Proc. 11th Inter. Conf. on Soil Dynamics and Earthquake Engineering and 3rd
Inter. Conf. on Earthquake Geotech. Engrg., Doolin, Kammerer, Mogami, Seed and Towhata,
Eds., Berkeley, CA Jan. 7-9, V.1, pp. 655-662.

Federal Emergency Management Agency (FEMA), 2005; “Federal Guidelines for Dam Safety –
Earthquake Analysis and Design of Dams”, U.S. Department of Homeland Security, dated May
2005.

Ishihara, K.,1993; “Liquefaction and Flow Failure During Earthquakes. Géotechnique, 43(3):351-
415.

Ishihara, K., S. Yasuda, and M. Kato, 1997, “Characteristics of lateral Spreading in Liquefied
Deposits during the 1995 Hanshin-Awaji Earthquake, Journal of Earthquake Engineering, Vol. 1,
No. 1, pp. 23-55.




Liquefaction and Stability Analyses                                                                 6
ATTACHMENT
                                                                                                                                        Material #: 4
                                                                                        Material #: 1                                   Description: Alluvium
                                                                                        Description: Dry Tailings                       Wt: 127
                                                                                        Wt: 120                                         Cohesion: 2000
                                                                                        Cohesion: 400                                   Phi: 39
                      ROSEMONT FEASIBILITY STUDY                                        Phi: 26
                      DRY-STACK TAILINGS FACILITY                                       Material #: 2
                                                                                                                                        Material #: 5
                                                                                                                                        Description: Weathered Bedrock
                                                                                        Description: Compacted Tailings                 Wt: 160
                      Horz Seismic Load: 0                                              Wt: 132                                         Cohesion: 3500
                      (Static)                                                          Cohesion: 0                                     Phi: 40
                                                                                        Phi: 29.9
                                                                                                                                        Material #: 6
                                                                                        Material #: 3                                   Description: Liquefied Tailings
                      Method: GLE                                                       Description: Waste Rock
                      Slip Surface Option: EntryAndExit                                                                                 Wt: 95
                                                                                        Wt: 120                                         Tau/Sigma Ratio: 0.1
                                                                                        Cohesion: 0
                                                                                        Phi: 43

                                                                                                     2.05


                            Stage 1 is 100' high and 400' wide crest.
                            All subsequent stages are 50' high and 100' wide crest.
                            25' offset between Stages. 13' freeborad.                                                                                                                  11
                            Downstream slope 3H:1V, Upstream slope 1.5H:1V for each stage.                                                                                 10                       #3
              700                                                                                                                                               9                                   #2
                                                                                                                                                     8                                              #1
              600                                                                                                                   7
                                                                                                                        6
              500                                                                                           5
                                                                                                4
Height (ft)




              400                                                             3
                                                                  2                                                                                                                                     #4
              300                         Stage 1
                                                                                                                                                                                                        #5
                                                                                                    7% grade
              200


              100

               0
                0.0   0.1     0.2   0.3   0.4   0.5   0.6   0.7   0.8   0.9       1.0     1.1        1.2    1.3   1.4   1.5   1.6        1.7   1.8       1.9   2.0   2.1   2.2   2.3        2.4   2.5    2.6   2.7

                                                                                            Distance (ft) (x 1000)
                                                                                                                                        Material #: 4
                                                                                        Material #: 1                                   Description: Alluvium
                                                                                        Description: Dry Tailings                       Wt: 127
                                                                                        Wt: 120                                         Cohesion: 2000
                                                                                        Cohesion: 400                                   Phi: 39
                      ROSEMONT FEASIBILITY STUDY                                        Phi: 26
                      DRY-STACK TAILINGS FACILITY                                       Material #: 2
                                                                                                                                        Material #: 5
                                                                                                                                        Description: Weathered Bedrock
                                                                                        Description: Compacted Tailings                 Wt: 160
                      Horz Seismic Load: 0.217                                          Wt: 132                                         Cohesion: 3500
                      (Horizontal Component of the MCE)                                 Cohesion: 0                                     Phi: 40
                                                                                        Phi: 29.9
                                                                                                                                        Material #: 6
                                                                                        Material #: 3                                   Description: Liquefied Tailings
                      Method: GLE                                                       Description: Waste Rock
                      Slip Surface Option: EntryAndExit                                                                                 Wt: 95
                                                                                        Wt: 120                                         Tau/Sigma Ratio: 0.1
                                                                                        Cohesion: 0
                                                                                        Phi: 43

                                                                                                     1.11


                            Stage 1 is 100' high and 400' wide crest.
                            All subsequent stages are 50' high and 100' wide crest.
                            25' offset between Stages. 13' freeborad.                                                                                                                  11
                            Downstream slope 3H:1V, Upstream slope 1.5H:1V for each stage.                                                                                 10                       #3
              700                                                                                                                                               9                                   #2
                                                                                                                                                     8                                              #1
              600                                                                                                                   7
                                                                                                                        6
              500                                                                                           5
                                                                                                4
Height (ft)




              400                                                             3
                                                                  2                                                                                                                                     #4
              300                         Stage 1
                                                                                                                                                                                                        #5
                                                                                                    7% grade
              200


              100


               0
                0.0   0.1     0.2   0.3   0.4   0.5   0.6   0.7   0.8   0.9       1.0     1.1        1.2    1.3   1.4   1.5   1.6        1.7   1.8       1.9   2.0   2.1   2.2   2.3        2.4   2.5    2.6   2.7

                                                                                             Distance (ft) (x 1000)
                                                                                                                                       Material #: 4
                                                                                        Material #: 1                                  Description: Alluvium
                                                                                        Description: Dry Tailings                      Wt: 127
                                                                                        Wt: 120                                        Cohesion: 2000
                                                                                        Cohesion: 400                                  Phi: 39
                      ROSEMONT FEASIBILITY STUDY                                        Phi: 26
                      DRY-STACK TAILINGS FACILITY                                       Material #: 2
                                                                                                                                       Material #: 5
                                                                                                                                       Description: Weathered Bedrock
                                                                                        Description: Compacted Tailings                Wt: 160
                      Horz Seismic Load: 0                                              Wt: 132                                        Cohesion: 3500
                      (Static)                                                          Cohesion: 0                                    Phi: 40
                                                                                        Phi: 29.9
                                                                                                                                       Material #: 6
                                                                                        Material #: 3                                  Description: Liquefied Tailings
                      Method: GLE                                                       Description: Waste Rock
                      Slip Surface Option: EntryAndExit                                                                                Wt: 95
                                                                                        Wt: 120                                        Tau/Sigma Ratio: 0.1
                                                                                        Cohesion: 0
                                                                                        Phi: 43

                                                                                                                                                                                                                1.40


                            Stage 1 is 100' high and 400' wide crest.
                            All subsequent stages are 50' high and 100' wide crest.
                            25' offset between Stages. 13' freeborad.                                                                                                                 11
                            Downstream slope 3H:1V, Upstream slope 1.5H:1V for each stage.                                                                                10                       #3
              700                                                                                                                                              9                                   #2
                                                                                                                                                    8                                              #1
              600                                                                                                                  7
                                                                                                                       6
              500                                                                                          5
                                                                                                4
Height (ft)




              400                                                             3
                                                                  2                                                                                                                                    #4
              300                         Stage 1
                                                                                                                                                                                                       #5
                                                                                                    7% grade
              200


              100

               0
                0.0   0.1     0.2   0.3   0.4   0.5   0.6   0.7   0.8   0.9       1.0     1.1        1.2   1.3   1.4   1.5   1.6        1.7   1.8       1.9   2.0   2.1   2.2   2.3        2.4   2.5    2.6   2.7

                                                                                            Distance (ft) (x 1000)
                                                                                                                                       Material #: 4
                                                                                        Material #: 1                                  Description: Alluvium
                                                                                        Description: Dry Tailings                      Wt: 127
                                                                                        Wt: 120                                        Cohesion: 2000
                                                                                        Cohesion: 400                                  Phi: 39
                      ROSEMONT FEASIBILITY STUDY                                        Phi: 26
                      DRY-STACK TAILINGS FACILITY                                       Material #: 2
                                                                                                                                       Material #: 5
                                                                                                                                       Description: Weathered Bedrock
                                                                                        Description: Compacted Tailings                Wt: 160
                      Horz Seismic Load: 0.217                                          Wt: 132                                        Cohesion: 3500
                      (Horizontal Component of the MCE)                                 Cohesion: 0                                    Phi: 40
                                                                                        Phi: 29.9
                                                                                                                                       Material #: 6
                                                                                        Material #: 3                                  Description: Liquefied Tailings
                      Method: GLE                                                       Description: Waste Rock
                      Slip Surface Option: EntryAndExit                                                                                Wt: 95
                                                                                        Wt: 120                                        Tau/Sigma Ratio: 0.1
                                                                                        Cohesion: 0
                                                                                        Phi: 43

                                                                                                                                                                                                                1.11


                            Stage 1 is 100' high and 400' wide crest.
                            All subsequent stages are 50' high and 100' wide crest.
                            25' offset between Stages. 13' freeborad.                                                                                                                 11
                            Downstream slope 3H:1V, Upstream slope 1.5H:1V for each stage.                                                                                10                       #3
              700                                                                                                                                              9                                   #2
                                                                                                                                                    8                                              #1
              600                                                                                                                  7
                                                                                                                       6
              500                                                                                          5
                                                                                                4
Height (ft)




              400                                                             3
                                                                  2                                                                                                                                    #4
              300                         Stage 1
                                                                                                                                                                                                       #5
                                                                                                    7% grade
              200


              100

               0
                0.0   0.1     0.2   0.3   0.4   0.5   0.6   0.7   0.8   0.9       1.0     1.1        1.2   1.3   1.4   1.5   1.6        1.7   1.8       1.9   2.0   2.1   2.2   2.3        2.4   2.5    2.6   2.7

                                                                                            Distance (ft) (x 1000)
ROSEMONT FEASIBILITY STUDY
DRY-STACK TAILINGS FACILITY

Horz Seismic Load: 0                                                                                                                    Material #: 4
(Static)                                                                                              Material #: 1                     Description: Alluvium
                                                                                                      Description: Dry Tailings         Wt: 127
                                                                                                      Wt: 120                           Cohesion: 2000
                                                                                                      Cohesion: 400                     Phi: 39
                                                                                                      Phi: 26
Stages are 25' high and 50' wide crest.                                                                                                 Material #: 5
12.5' offset between Stages. 10' freeborad.                                                           Material #: 2                     Description: Weathered Bedrock
Downstream slope 3H:1V, Upstream slope 1.5H:1V for each stage.                                        Description: Compacted Tailings   Wt: 160
                                                                                                      Wt: 132                           Cohesion: 3500
                                                                                                      Cohesion: 0                       Phi: 40
                                                                                                      Phi: 29.9
              700
                                                                                                      Material #: 3
                                                                                                      Description: Waste Rock
                                                                                                      Wt: 120
              600
                                                                                                      Cohesion: 0
                                                                                                 2.13 Phi: 43

              500
                                              9
                                         #3          8
                                       #2                    7
                                                                       6
Height (ft)




              400
                                                                                 5
                                                                                           4
                                                                                                  3
              300                                                                                          2
                                                                                                                      1

                      #1
              200                                                                    7% grade

                      #4
              100
                      #5


               0
                0.0        0.1   0.2    0.3   0.4     0.5        0.6       0.7       0.8        0.9       1.0        1.1          1.2   1.3      1.4       1.5     1.6   1.7

                                                                            Distance (ft) (x 1000)
ROSEMONT FEASIBILITY STUDY
DRY-STACK TAILINGS FACILITY

Horz Seismic Load: 0.217                                                                                                                Material #: 4
(Horizontal Component of the MCE)                                                                     Material #: 1                     Description: Alluvium
                                                                                                      Description: Dry Tailings         Wt: 127
                                                                                                      Wt: 120                           Cohesion: 2000
                                                                                                      Cohesion: 400                     Phi: 39
                                                                                                      Phi: 26
Stages are 25' high and 50' wide crest.                                                                                                 Material #: 5
12.5' offset between Stages. 10' freeborad.                                                           Material #: 2                     Description: Weathered Bedrock
Downstream slope 3H:1V, Upstream slope 1.5H:1V for each stage.                                        Description: Compacted Tailings   Wt: 160
                                                                                                      Wt: 132                           Cohesion: 3500
                                                                                                      Cohesion: 0                       Phi: 40
                                                                                                      Phi: 29.9
              700
                                                                                                      Material #: 3
                                                                                                      Description: Waste Rock
                                                                                                      Wt: 120
              600
                                                                                                      Cohesion: 0
                                                                                                 1.15 Phi: 43

              500
                                              9
                                         #3          8
                                       #2                    7
                                                                       6
Height (ft)




              400
                                                                                 5
                                                                                           4
                                                                                                  3
              300                                                                                          2
                                                                                                                      1

                      #1
              200                                                                    7% grade

                      #4
              100
                      #5


               0
                0.0        0.1   0.2    0.3   0.4     0.5        0.6       0.7       0.8        0.9       1.0        1.1          1.2   1.3      1.4       1.5     1.6   1.7

                                                                            Distance (ft) (x 1000)
ROSEMONT FEASIBILITY STUDY
DRY-STACK TAILINGS FACILITY

Horz Seismic Load: 0                                                                                                                        Material #: 4
(Static)                                                                                                  Material #: 1                     Description: Alluvium
                                                                                                          Description: Dry Tailings         Wt: 127
                                                                                                          Wt: 120                           Cohesion: 2000
                                                                                                          Cohesion: 400                     Phi: 39
                                                                                                          Phi: 26
Stages are 25' high and 50' wide crest.                                                                                                     Material #: 5
12.5' offset between Stages. 10' freeborad.                                                               Material #: 2                     Description: Weathered Bedrock
Downstream slope 3H:1V, Upstream slope 1.5H:1V for each stage.                                            Description: Compacted Tailings   Wt: 160
                                                                                                          Wt: 132                           Cohesion: 3500
                                                                                                          Cohesion: 0                       Phi: 40
                                                                                                          Phi: 29.9
              700
                                                                                                          Material #: 3
                                                                                                          Description: Waste Rock
                                                                                                          Wt: 120
              600
                                                                                                          Cohesion: 0
                                       1.42                                                               Phi: 43

              500
                                                     9
                                                #3         8
                                              #2                 7
                                                                           6
Height (ft)




              400
                                                                                     5
                                                                                               4
                                                                                                      3
              300                                                                                              2
                                                                                                                          1

                      #1
              200                                                                        7% grade

                      #4
              100
                      #5


               0
                0.0        0.1   0.2           0.3   0.4   0.5       0.6       0.7       0.8        0.9       1.0        1.1          1.2   1.3      1.4       1.5     1.6   1.7

                                                                                Distance (ft) (x 1000)
ROSEMONT FEASIBILITY STUDY
DRY-STACK TAILINGS FACILITY

Horz Seismic Load: 0.217                                                                                                                    Material #: 4
(Horizontal Component of the MCE)                                                                         Material #: 1                     Description: Alluvium
                                                                                                          Description: Dry Tailings         Wt: 127
                                                                                                          Wt: 120                           Cohesion: 2000
                                                                                                          Cohesion: 400                     Phi: 39
                                                                                                          Phi: 26
Stages are 25' high and 50' wide crest.                                                                                                     Material #: 5
12.5' offset between Stages. 10' freeborad.                                                               Material #: 2                     Description: Weathered Bedrock
Downstream slope 3H:1V, Upstream slope 1.5H:1V for each stage.                                            Description: Compacted Tailings   Wt: 160
                                                                                                          Wt: 132                           Cohesion: 3500
                                                                                                          Cohesion: 0                       Phi: 40
                                                                                                          Phi: 29.9
              700
                                                                                                          Material #: 3
                                                                                                          Description: Waste Rock
                                                                                                          Wt: 120
              600
                                                                                                          Cohesion: 0
                                       1.11                                                               Phi: 43

              500
                                                     9
                                                #3         8
                                              #2                 7
                                                                           6
Height (ft)




              400
                                                                                     5
                                                                                               4
                                                                                                      3
              300                                                                                              2
                                                                                                                          1

                      #1
              200                                                                        7% grade

                      #4
              100
                      #5


               0
                0.0        0.1   0.2           0.3   0.4   0.5       0.6       0.7       0.8        0.9       1.0        1.1          1.2   1.3      1.4       1.5     1.6   1.7

                                                                                Distance (ft) (x 1000)
                                                                                                                                       Material #: 4
                                                                                        Material #: 1                                  Description: Alluvium
                                                                                        Description: Dry Tailings                      Wt: 127
                                                                                        Wt: 120                                        Cohesion: 2000
                                                                                        Cohesion: 400                                  Phi: 39
                      ROSEMONT FEASIBILITY STUDY                                        Phi: 26
                      DRY-STACK TAILINGS FACILITY                                       Material #: 2
                                                                                                                                       Material #: 5
                                                                                                                                       Description: Weathered Bedrock
                                                                                        Description: Compacted Tailings                Wt: 160
                      Horz Seismic Load: 0                                              Wt: 132                                        Cohesion: 3500
                      (Static)                                                          Cohesion: 0                                    Phi: 40
                                                                                        Phi: 29.9
                                                                                                                                       Material #: 6
                                                                                        Material #: 3                                  Description: Liquefied Tailings
                      Method: GLE                                                       Description: Waste Rock
                      Slip Surface Option: EntryAndExit                                                                                Wt: 95
                                                                                        Wt: 120                                        Tau/Sigma Ratio: 0.1
                                                                                        Cohesion: 0
                                                                                        Phi: 43

                                                                                                                                                                                                                    1.53


                            Stage 1 is 100' high and 400' wide crest.
                            All subsequent stages are 50' high and 100' wide crest.
                            25' offset between Stages. 13' freeborad.                                                                                                                 11                              #6
                            Downstream slope 3H:1V, Upstream slope 1.5H:1V for each stage.                                                                                10                       #3
              700                                                                                                                                              9                                   #2
                                                                                                                                                    8                                              #1
              600                                                                                                                  7
                                                                                                                       6
              500                                                                                          5
                                                                                                4
Height (ft)




              400                                                             3
                                                                  2                                                                                                                                    #4
              300                         Stage 1
                                                                                                                                                                                                       #5
                                                                                                    7% grade
              200


              100

               0
                0.0   0.1     0.2   0.3   0.4   0.5   0.6   0.7   0.8   0.9       1.0     1.1        1.2   1.3   1.4   1.5   1.6        1.7   1.8       1.9   2.0   2.1   2.2   2.3        2.4   2.5    2.6   2.7

                                                                                            Distance (ft) (x 1000)
                                                                                                                                       Material #: 4
                                                                                        Material #: 1                                  Description: Alluvium
                                                                                        Description: Dry Tailings                      Wt: 127
                                                                                        Wt: 120                                        Cohesion: 2000
                                                                                        Cohesion: 400                                  Phi: 39
                      ROSEMONT FEASIBILITY STUDY                                        Phi: 26
                      DRY-STACK TAILINGS FACILITY                                       Material #: 2
                                                                                                                                       Material #: 5
                                                                                                                                       Description: Weathered Bedrock
                                                                                        Description: Compacted Tailings                Wt: 160
                      Horz Seismic Load: 0                                              Wt: 132                                        Cohesion: 3500
                      (Static)                                                          Cohesion: 0                                    Phi: 40
                                                                                        Phi: 29.9
                                                                                                                                       Material #: 6
                                                                                        Material #: 3                                  Description: Liquefied Tailings
                      Method: GLE                                                       Description: Waste Rock
                      Slip Surface Option: Block                                                                                       Wt: 95
                                                                                        Wt: 120                                        Tau/Sigma Ratio: 0.1
                                                                                        Cohesion: 0
                                                                                        Phi: 43

                                                                                             1.27


                            Stage 1 is 100' high and 400' wide crest.
                            All subsequent stages are 50' high and 100' wide crest.
                            25' offset between Stages. 13' freeborad.                                                                                                                 11
                            Downstream slope 3H:1V, Upstream slope 1.5H:1V for each stage.                                                                                10                       #3
              700                                                                                                                                              9                                   #2
                                                                                                                                                    8                                              #1
              600                                                                                                                  7
                                                                                                                       6
              500                                                                                          5
                                                                                                4
Height (ft)




              400                                                             3
                                                                  2                                                                                                                                    #4
              300                         Stage 1
                                                                                                                                                                                                       #5
                                                                                                    7% grade
              200                                                                                                                        #6

              100

               0
                0.0   0.1     0.2   0.3   0.4   0.5   0.6   0.7   0.8   0.9       1.0     1.1        1.2   1.3   1.4   1.5   1.6        1.7   1.8       1.9   2.0   2.1   2.2   2.3        2.4   2.5    2.6   2.7

                                                                                            Distance (ft) (x 1000)
                                                                                                                                       Material #: 4
                                                                                        Material #: 1                                  Description: Alluvium
                                                                                        Description: Dry Tailings                      Wt: 127
                                                                                        Wt: 120                                        Cohesion: 2000
                                                                                        Cohesion: 400                                  Phi: 39
                      ROSEMONT FEASIBILITY STUDY                                        Phi: 26
                      DRY-STACK TAILINGS FACILITY                                       Material #: 2
                                                                                                                                       Material #: 5
                                                                                                                                       Description: Weathered Bedrock
                                                                                        Description: Compacted Tailings                Wt: 160
                      Horz Seismic Load: 0                                              Wt: 132                                        Cohesion: 3500
                      (Static)                                                          Cohesion: 0                                    Phi: 40
                                                                                        Phi: 29.9
                                                                                                                                       Material #: 6
                                                                                        Material #: 3                                  Description: Liquefied Tailings
                      Method: GLE                                                       Description: Waste Rock
                      Slip Surface Option: Block                                                                                       Wt: 95
                                                                                        Wt: 120                                        Tau/Sigma Ratio: 0.1
                                                                                        Cohesion: 0
                                                                                        Phi: 43

                                                                                             1.13


                            Stage 1 is 100' high and 400' wide crest.
                            All subsequent stages are 50' high and 100' wide crest.
                            25' offset between Stages. 13' freeborad.                                                                                                                 11
                            Downstream slope 3H:1V, Upstream slope 1.5H:1V for each stage.                                                                                10                       #3
              700                                                                                                                                              9                                   #2
                                                                                                                                                    8                                              #1
              600                                                                                                                  7
                                                                                                                       6
              500                                                                                          5
                                                                                                4
Height (ft)




              400                                                             3
                                                                  2                                                                                                                                    #4
              300                         Stage 1                                                                                                       #6                                             #5
                                                                                                    7% grade
              200


              100

               0
                0.0   0.1     0.2   0.3   0.4   0.5   0.6   0.7   0.8   0.9       1.0     1.1        1.2   1.3   1.4   1.5   1.6        1.7   1.8       1.9   2.0   2.1   2.2   2.3        2.4   2.5    2.6   2.7

                                                                                            Distance (ft) (x 1000)
                                                                                                                                       Material #: 4
                                                                                        Material #: 1                                  Description: Alluvium
                                                                                        Description: Dry Tailings                      Wt: 127
                                                                                        Wt: 120                                        Cohesion: 2000
                                                                                        Cohesion: 400                                  Phi: 39
                      ROSEMONT FEASIBILITY STUDY                                        Phi: 26
                      DRY-STACK TAILINGS FACILITY                                       Material #: 2
                                                                                                                                       Material #: 5
                                                                                                                                       Description: Weathered Bedrock
                                                                                        Description: Compacted Tailings                Wt: 160
                      Horz Seismic Load: 0                                              Wt: 132                                        Cohesion: 3500
                      (Static)                                                          Cohesion: 0                                    Phi: 40
                                                                                        Phi: 29.9
                                                                                                                                       Material #: 6
                                                                                        Material #: 3                                  Description: Liquefied Tailings
                      Method: GLE                                                       Description: Waste Rock
                      Slip Surface Option: Block                                                                                       Wt: 95
                                                                                        Wt: 120                                        Tau/Sigma Ratio: 0.1
                                                                                        Cohesion: 0
                                                                                        Phi: 43

                                                                                             1.20


                            Stage 1 is 100' high and 400' wide crest.
                            All subsequent stages are 50' high and 100' wide crest.
                            25' offset between Stages. 13' freeborad.                                                                                                                 11
                            Downstream slope 3H:1V, Upstream slope 1.5H:1V for each stage.                                                                                10                       #3
              700                                                                                                                                              9                                   #2
                                                                                                                                                    8                                              #1
              600                                                                                                                  7
                                                                                                                       6
              500                                                                                          5
                                                                                                4                                                                                                #6
Height (ft)




              400                                                             3
                                                                  2                                                                                                                                    #4
              300                         Stage 1
                                                                                                                                                                                                       #5
                                                                                                    7% grade
              200


              100

               0
                0.0   0.1     0.2   0.3   0.4   0.5   0.6   0.7   0.8   0.9       1.0     1.1        1.2   1.3   1.4   1.5   1.6        1.7   1.8       1.9   2.0   2.1   2.2   2.3        2.4   2.5    2.6   2.7

                                                                                            Distance (ft) (x 1000)
                                                                                                                                       Material #: 4
                                                                                        Material #: 1                                  Description: Alluvium
                                                                                        Description: Dry Tailings                      Wt: 127
                                                                                        Wt: 120                                        Cohesion: 2000
                                                                                        Cohesion: 400                                  Phi: 39
                      ROSEMONT FEASIBILITY STUDY                                        Phi: 26
                      DRY-STACK TAILINGS FACILITY                                       Material #: 2
                                                                                                                                       Material #: 5
                                                                                                                                       Description: Weathered Bedrock
                                                                                        Description: Compacted Tailings                Wt: 160
                      Horz Seismic Load: 0                                              Wt: 132                                        Cohesion: 3500
                      (Static)                                                          Cohesion: 0                                    Phi: 40
                                                                                        Phi: 29.9
                                                                                                                                       Material #: 6
                                                                                        Material #: 3                                  Description: Liquefied Tailings
                      Method: GLE                                                       Description: Waste Rock
                      Slip Surface Option: Block                                                                                       Wt: 95
                                                                                        Wt: 120                                        Tau/Sigma Ratio: 0.1
                                                                                        Cohesion: 0
                                                                                        Phi: 43

                                                                                             1.27


                            Stage 1 is 100' high and 400' wide crest.
                            All subsequent stages are 50' high and 100' wide crest.
                            25' offset between Stages. 13' freeborad.                                                                                                                 11
                            Downstream slope 3H:1V, Upstream slope 1.5H:1V for each stage.                                                                                10                       #3
              700                                                                                                                                              9                                   #2
                                                                                                                                                    8                                              #1
              600                                                                                                                  7
                                                                                                                       6
              500                                                                                                                                                                                        #6
                                                                                                           5
                                                                                                4
Height (ft)




              400                                                             3
                                                                  2                                                                                                                                    #4
              300                         Stage 1
                                                                                                                                                                                                       #5
                                                                                                    7% grade
              200


              100

               0
                0.0   0.1     0.2   0.3   0.4   0.5   0.6   0.7   0.8   0.9       1.0     1.1        1.2   1.3   1.4   1.5   1.6        1.7   1.8       1.9   2.0   2.1   2.2   2.3        2.4   2.5    2.6   2.7

                                                                                            Distance (ft) (x 1000)
ROSEMONT FEASIBILITY STUDY
DRY-STACK TAILINGS FACILITY

Horz Seismic Load: 0                                                                                                                        Material #: 4
(Static)                                                                                                  Material #: 1                     Description: Alluvium
                                                                                                          Description: Dry Tailings         Wt: 127
                                                                                                          Wt: 120                           Cohesion: 2000
                                                                                                          Cohesion: 400                     Phi: 39
                                                                                                          Phi: 26
Stages are 25' high and 50' wide crest.                                                                                                     Material #: 5
12.5' offset between Stages. 10' freeborad.                                                               Material #: 2                     Description: Weathered Bedrock
Downstream slope 3H:1V, Upstream slope 1.5H:1V for each stage.                                            Description: Compacted Tailings   Wt: 160
                                                                                                          Wt: 132                           Cohesion: 3500
                                                                                                          Cohesion: 0                       Phi: 40
                                                                                                          Phi: 29.9
              700
                                                                                                          Material #: 3
                                                                                                          Description: Waste Rock
                                                                                                          Wt: 120
              600
                                                                                                          Cohesion: 0
                                       1.42                                                               Phi: 43

              500
                                                     9
                                                #3         8
                                              #2                 7
                      #6                                                   6
Height (ft)




              400
                                                                                     5
                                                                                               4
                                                                                                      3
              300                                                                                              2
                                                                                                                          1

                      #1
              200                                                                        7% grade

                      #4
              100
                      #5


               0
                0.0        0.1   0.2           0.3   0.4   0.5       0.6       0.7       0.8        0.9       1.0        1.1          1.2   1.3      1.4       1.5     1.6   1.7