2-3
I
I
Figure
2-3.
Aerial
view of Edwards power station. Approximate I 0 2-4 Scale I/8 (miles) 4 l/4
I
I
2-5
.
currently Illinois Kentucky delivered delivered reserves of coal). for
fires coal coal to is the
coals is
from central by rail
Illinois directly and three Runoff into
and from eastern Approximately to the site, then units trucked pile to
Kentucky. of
The the is Coal tons of and
delivered delivered to site is runoff into
by truck. dock
75 percent the site.
and 25 percent sufficient 250,000 flow rate
by barge
a nearby placed is the
a storage
containing
56 days operation Coal is pile gallons discharged of
of all
(approximately
intermittent Illinois Process coal-fired wall fired
and has an average is collected River.
0.056.million pond water 2.1.2
per day (MGD).
in an ash pond,
Description Edwards Station net Unit coal the
Existing three
has
steam electric boiler,
generating will high
units be con2-5. sulfur were 1987. q . ' .
with ducted Unit
a total in 1 fires
generating consisting Illinois
capacity
of 740 MWe. The project 15 weight low sulfur 2-l. load percent coal
1, a 117 MWe front a blend from
as shown in Figure
of nominally and 85 percent are given Testing during Plant in three 1986 rate,
bituminous Kentucky. done for
from eastern
Coal and ash analyses plant 95,190 tons of station tons of by Commercial 1 design lb/hr of coal. coal heat coal,
in Table full records units Unit
These analyses Company in Unit in that operation
and Engineering indicate
Based on the Unit approximately 1 fired 1;308,33g 16 percent 49.9 percent. An electrostatic emissions. downstream ft2/(1000 Solid plant pond RCRA Subtitle for 208,676
1 fires 1986 Unit fired about was
of coal. Therefore, usage.
and all
at Edwards Station 1 accounted 1 capacity for factor
In 1986.
the Unit
precipitator a cold side preheater.
(ESP) unit,
is
used which
to
control that collection
particulate it operates area of 137
The ESP is of the air ft3/min). waste streams furnace
means
The ESP has specific
from the boiler bottom ash. flow 2-6 Waste regulations
include
the fly
ash collected are exempted to an on-site
by the from ash
ESP and the disposal.
These waste rate
streams
C Hazardous
and are sluiced
Based on coal
and ash percentage,
calculations
-w’U* mu. YLU L il. ta-.mtw 132” q. n. Al, “.Y . L7I.I w. e.
II
. I.“.“..% II I.-a I.-. h.-mnYr-mlEZ
-cu
.yui.Y .*Yw. LI/Ima 1. -t,Jnn.. .,a, . r ,/ta. IV 0 VW .Llf”.NLn..
..U.
-“.L3s”nL~u
Figure
2-5.
Schematic
of Edwards Station 2-7
Unit
No. 1 Boiler.
TABLE 2-1.
EDWARDSSTATION UNIT 1 COAL PROPERTIES
Low-Sulfur Fuel Properties KeC%ky Proximate Analysis (Dry) 57.40 36.65 5.95 6.15 13.438
High-Sulfur Illinois Coal
Fixed Carbon Volatile Matter Ash Moisture (as received) (as fired) (Dry)
49.52 39.28 11.20
16.59 10.635
Heat Value (Btu/lb) Ultimate
Analysis
Carbon Hydrogen Nitrogen Chlorine Sulfur Ash Oxygen Ash Fusion Temp. Reducing (OF1
80.00 5.08 1.45 0.13 0.69 5.96 6.69
71.05 4.99 1.24 0.05 2.99 11.20 8.48
Initial Deformation Softening (Ii = W) Softening (ii = l/2 Fluid
W)
2370-2700 + 2540-2700 + 2630-2700 + 2700 +
1,975 2,090 2,195
2.305
2-a
indicate the 851 lb/hr. conditions indicate units
that
during is
full-load lb/hr, flow full Unit 1 at
operation and flow diagram load, 1 generated 76,014 in
flow rate
rate
of fly 2-6, flow tons
ash from Unit
1 to
ash pond for that
4724 Unit
of bottom Figure 12,208
ash to the ash pond is representing rates. of ash, Plant and all baseline records three
The process in 1986
shows these tons
at Edwards Station Process water cooling flow
generated
of ash. River is used for fly Illinois water is once-through ash. River required Elimination water and to of these for submit flow water. ash are by Unit into the rate. as
.-
from the adjacent applications is provided The average water the High, from National plant low, and oils rates
Illinois
non-contact Boiler Process sluiced 1 is Illinois (NPDES) pH, taken total from 2-3. monitoring in Table Unit (scfm). full pounds sulfur This which tests (0.168 2.2 load per value is 1.17 water
and for
transporting in Table the ash 2-2. pond effluent values
ash and bottom
make-up
water
by demineralized amount of sluice Pollutant to monitor and average reports
are sumnarized
Fly and bottom discharged
to an ash pond. MGO. River. permit Effluent
The plant's requires solids.
Discharge
System monthly
suspended reports.
and greases from
parameters
12 successive
monitoring
1986 and 1987 are presented:
I currently Air emissions million is operation.
requires SO2 is Btu NOx is
air
at a flow include
rate
of 254,000 at a rate of
standard 1712 lb/hr
ft3/min During Cl.43 and
of concern (lb/MBtu)], emitted assuming of
S02, NO, and particulates. from coal 1269 lb/hr of 750 parts at a rate
presently at
emitted a rate of
as calculated NOx emissions boilers. are emitted
feed rate
content. a value
(1.06
lbs/MBtu). per million, of 218 lb/hr
calculated typical in 1986,
wall-fired
Based on ESP performance
conducted lb/MBtu). Technical Laboratory-scale
particulates
Project
Oescriotion of the reburning in the early 1970's M. A., 2-9 "Reduction concept (e.g. were originally Wendt. J. 0. L.. and Trioxide
investigations United States and Matovich,
conducted Sternling,
in
the
C. V.,
of Sulfur
f
2-10
I
I
TABLE 2-2.
PROCESSWATER FLOW RATES
Source Circulating Cooling Sluice Boiler Water Water Runoff Water
Flow Rate (MGDJ 2.6 355 1.17 0.056
Coal Pile i
2-11
TABLE 2-3.
ASH POND EFFLUENT WATER PARAMETERS
Flow Rate (MGD)
Oils/grease(mg/l)
2-12
Nitrogen national) with the oil
Oxides it
by Secondary has been systems. fuel is
Fuel
Injection." Institute, at full
Fourteenth Pittsburgh, scale
Symposium (Inter1973, p. 897). but mainly work at when scale in scale in Japan.
on Cotiustion, fired
The Combustion demonstrated Recent potential natural 1960 and
More recently
extensive gas.
research
and pilot
EER has demonstrated reburning in Valley developed Tennessee with higher locations SO2 control. EER's reductions reductions sorbent those scale spectrum most of injection obtained systems. The objectives data base demonstrating and to Since population. using three applications technologies. utility the full conducted characteristics. as applied Figure Natural produced boilers of with of primary recent up to if rather circa
of the reburning Sorbent
concept, injection
particularly was also at that full
originally 1970's
1970 and was demonstrated (TVA) Shawnee Power Plant TVA demonstrated through the potential use of Large scale
Authority's levels could sorbent
in the early proper
poor results. and advanced sites
Subsequently, be achieved materials.
significantly injection U.S. for
capture
work at several of this technology
and Canadian
has begun to confirm
pilot 70 percent a hydrated optimized
scale from typical
results
indicate
that
60 percent Sulfur reburning are typical for
NOx with of _
can be achieved
pre-NSPS NOx levels. by combining These data injection is used.
dioxide
can be achieved sorbent gas appear
reburning-sorbent to be generally
a wide in full
fuels
and they
achievable
the
current
project
are
to provide of this
a comprehensive boiler of combination
the performance promote the design
of GR-SI in pre-NSPS utility characteristics could with for
coasnercialization and operating demonstration a total utility will of three boilers be designed
of pre-NSPS address will varying be
vary widely,
no single pre-NSPS host unit.
adequately widely
Consequently, The GR-SI systems
demonstrations
optimum performance
to each specific 2-7 illustrates injected zone.
the application above the main heat NO is reduced
of GR-SI in a wall release radical
fired
boiler. is
gas is in that
zone to reburn
NO that
by a hydrocarbon 2-13
(CH) producing
REBURNING GAS
Figure
2-7.
Application injection
for
of gas reburniwysorbent NOx/S02 control.
2-14
HCN which allows by the reaction temperatures 60 percent emission the plant
the formation of NO with
of NH via NCO. Molecular nitrogen is produced N at high temperature and with NH2 at lower
(<2200°FI. NOx control.
The goal of the GR-SI system is to provide The pre-NSPS Edwards unit does not have an NOx Thus, this NOx emission reduction could be useful to #Ox regulations. location to maximire will is shown for sulfur sorbent injection. of of ._
constraint.
in response to future
In Figure Upper furnace approximately fired Unit
2-7 an upper furnace injection 2250°F is required
is necessary the SO2 strategy
because
an injection capture. a higher
temperature percentage
For the walllevels. on this in the
1 boiler,
be to fire
high sulfur Illinois coal while maintaining SO2 emissions at present The preliminary plan is to inject the sorbent into the upper furnace unit. flue Sorbent gas. injection will increase the amount of solid and performance material Therefore, several ESP modifications
upgrades will
be assessed during the detailed design phase of the project and implemented during the construction and startup phase. ARong these possible modifications are addition The solid which, lime/fly of plate area, flue gas humidification and SO3 injection. sorbent with or the fly ash to solid _
waste from GR-SI is a blend of a calcium lime, for has similar sludge sludge prepared
due to the presence of unreacted ash/scrubber
characteristics
disposal
product from lime-based placement and produces cosssercial
spray dryer systems. stable landfills. applications.
This waste Such a blend
hardens after may also have
value for construction solfd
Two potential these option off-site detailed options is dry is
waste management options current which would involve
will
be evaluated. system. the solid
One of The other
to use the plant's landfill.
wet handling trucking will
disposal.
waste to an the
permitted design
One of these options
be chosen during
phase of the project.
2-15
2.3 2.3.1
Oescription Description
of Activities of Project Phases EER wil 1 conduct the
The GR-SI project will take 53 months to complete. technology demonstration project in three phases: @ Phase l--Design in the systems permitting program initiate plan demonstration modifications a and Permitting. This initial
phase wi 11 culminate
detailed design of gas reburning and sorbent injection for Edwards Station. Gas pipeline design, routing, and activities will testing. will will also for All be conducted the panel will during Phase 1. A and to ._ be prepared transfer. be obtained. and Startup. This phase will begin after‘ and will last 16 months. Following DOE and sorbent out at during injection Station. Phase 2. equipment will Gas pipeline The process and panel. and Disposition. will be be Edwards equipment construction be established permits
An industry
technology
necessary
and permit
Phase E--Construction Phase 1 is completed approval, installed construction engineering and checked will designs will
the gas reburning
also be conducted be presented
to the industry Reporting, the final
0
Phase 3--Operation. Phase 3 will will tested results available industry last begin 29 months.
Data Collection, concurrent Following with
stages of Phase 2 and the host unit
DOE approval,
for one year over a range of conditions. All data and test will be compiled into a guideline manual which will be made to industry. panel. The project results will be presented to the
The demonstration technology technology
of GR-SI is not intended
as a first
generation
of specific
but rather it will build upon the results of several individual demonstrations now being conducted by the EPA and others. 2-16
I
I
2.3.2
Description The following
of Installation section as part personnel describes of the
Activities the specific installation safety tasks that by EER is a primary
will
be undertaken plant
GR-SI technology labor. Worker
demonstration
personnel,
and local
concern in any industrial project, since an employer has not only a financial liability, but an ethical responsibility to ensure that workers are not subjected safety risk to unreasonable rules of injury Major will be fully to workers. involved in the construction phase of the project _ risks. enforced All appropriate this occupational health and the throughout program to minimize
activities
include installation of the gas reburning and sorbent injection equipment. construction of the natural gas pipeline, and implementation of ESP upgrades. The GR-SI equipment a series
1.
installation
work at Edwards Station
will
be conducted
in
of five
steps:
2. 3. 4. 5.
Procurement Initial installation Final installation Checkout Correction
(normal (outage)
unit
operation)
of deficiencies final is the installation, key element schedule will must correspond determining to a normally scheduled schedule.
Step three, outage at the and this The specific
the installation
outage
time and the condition
depend on the utility's For example, of the unit.
load requirements if a fall outage is
scheduled but the power demand is greater than anticipated in the fall and there are no major problems, the utility may elect to delay the outage until the low load period in the spring. flexibility, The program EER will must be flexible request in this to of regard. procure the final To maximize schedule long lead time design specifications. authorization the completion
items as soon as possible
following
2-17
Most of the silos, items etc., will
equipment
will
be standard directly
items such as piping, A limited specific
valves, nu&er of
and will
be obtained
from vendors. to meet site
need to be custom-fabricated
requirements. etc. The will be to
These include the gas and sorbent injectors. windbox modifications. general approach to the equipment procurement and installation conduct possible. and fitting the
fabrication/assembly work off site to the maximum extent This will limit the amount of time-consuming custom installation required during installation step the short outage periods. be divided is into two steps: an The
The on-site initial operation following
1.
work will where all work
installation and the final equipment will Sorbent
conducted
during
normal unit
installation be installed and storage
step which requires a unit outage. during normal unit operation: equipsmnt. equipment. equipment assetily.
unloading
2. 3. 4. 5. 6. 7. A plot
Sorbent feeding and transport Sorbent piping and injection
Sorbent injection control assetily. Gas piping and control assembly. Gas injector assetily. Instrumentation installation plan of Edwards Station except for final connections.
storage silo installation installation
is shown in Figure in time to provide during a scheduled equiplnent
showing a proposed location of the sorbent The intent is to complete the initial 2-8. flexibility on completing the final
outage. during an outage:
The following
1.
must be installed
Windbox modifications. Furnace or duct penetrations or sorbent injectors. Final Final connections gas plutiing. connections. for control for gas injectors, equipment. overfire air ports
2. 3. 4. 5. 6.
Final instrumentation ESP upgrades.
2-18
I\\ I
I\
z \\ 1
Boiler asbestos conducted will applicable guidelines, It single is
tubes are insulated
with
asbestos
to minimize
heat loss,
and some
handling will be required. by a contractor qualified in the contractor's OSHA and EPA regulations air monitoring not necessary outage
include
All boiler modification work will be to work with asbestos materials. EER specifications a requirement that all be satisfied, and proper installation including disposal asbestos removal considerations. at a
requirements, that all final
work be completed
scheduled
following
the initial
installation.
Consideration
will be given modifications installation
to installing the furnace/duct penetrations, windbox and ESP upgrades prior to the completion of the initial items if a scheduled outage during becomes available. the final outage. will for be the This would of effort of the required
reduce the intensity Installation conducted pipeline long, project includes potential is
natural 2-9.
gas pipeline The pipeline the Historic
at Edwards Station route selected will be approximately
by the Gas Division shown in Figure 3/4 State mile will federal Historic of pipeline
of CILCO.
The tentative
1 mile Since the .
of which involves the impact
be on privately Preservation construction.
owned property. Preservation
funding,
Agency, which
Officer (SHPO), must evaluate the An archaeological survey may be not disturb any
required by the SHPO to demonstrate that the pipeline will sites of archaeological cultural, or historic significance. Construction steps: Preliminary Final engineering title and route search and route selection selection of the natural gas pipeline will include
the following
Land ownership engineering
Right of way negotiation/procurement Archaeological survey materials and equipment procurement Excavation and pipefitting Right of way cleanup 2-20
N
t
Proposed Pip/line Route
f \\
\ \ \
Property Line
i ;; II) G -5 =
\
\
\ dwrr
14
Approximate 500 I Figure 2-g. 0 500 Tentative route for natural to Edwards Station. 2-21
D:l
Scale (feet) 1000 gas pipeline
These tasks reveals that the be chosen.
will
be coordinated route will route
by CILCO. that
If the archaeological then an alternate will
survey or
pipeline
is unsuitable, be selected
route will
No final
damage any artifacts
land of archaeological
significance. required metering for the pipeline welding construction supplies, will The adjacent to will
The materials and equipment include pipe, fittings, valves, excavation equipment, meet applicable codes natural Unit 1. gas pipeline From this
equipment,
and material handling equipment. and will match consson industrial will be routed point, previously to convenient under equipment the remaining construction
All materials practices. activities
termination installation.
terminal
be conducted 2.4 This divided 2.4.1
as described
Project section
Source Terms characterizes demonstration all of the areas that Potential requirements could be impacted by areas of impact can be. and project discharges.
the GR-SI technology into
project.
the categories
of resource
Project Project
Resource Requirements requirednts resources. project Figure The resource include energy, land, water, with labor, important the GR-SI
resource and other rates.
materials, process technology
2-10 is a diagram detailing associated below.
flow
requirements
demonstration
are identified
Energy Requirements Additional demonstration equipment, increase is estimated energy include and natural in electrical that requirements electrical gas required power consumption associated power with the GR-SI technology injection and ESP It fuel. The estimated at full
to run sorbent for the site rate
as reburning
is about 1400 kW.
the natural
gas consumption
for the host site
operating capacity will be 3908 scfm. This value is calculated that 18 percent of the heat input currently provided by coal will 2-22
by assuming be provided
I
I
i;; u-3 -* c$5 xx ‘2 En
rI c :
2-23
by natural gas during GR-SI operation. Coal usage will decrease due to the added natural gas flow. Full-load coal feed rate is expected to decrease by approximately 11 percent to 82,311 lb/hr. To maintain SO2 emissions at calculations indicate that the new blend of coal fired by present levels, Unit 1 will be about 57 percent high-sulfur Illinois coal and 43 percent lowKentucky coal.
sulfur
Land Requirements The GR-SI project procedures on an existing ensure sorbent convenient If used, that adequate location storage involves the utility boiler. space is available equipment. hardware. to the existing ash pond is for waste disposal. If the be transported will to be for retrofit of two emission control
The host site on site for Sufficient
has been examined to installation of the for -
and feeding of all
space is available
required
the option of wet solid waste disposal then no additional land will be required waste disposal landfill. option In this case,
dry solid an existing land will Illinois The natural required underground installation.
is used then the waste will for waste disposal. permitted landfill,
the only land requireemnt
that has already been allocated be disposed of in an appropriately solid only for waste regulations. significant pipeline and topsoil Thus after for agricultural land A stretch will
The solid waste as defined by
requirement
of the, project
will
be for the be be
gas pipeline.
of land approximately 1 mile long will However, the pipeline will construction. be removed, installation uses. and other stockpiled, and replaced pipeline is completed,
after
the land will
be available
Water Requirenmnts The GR-SI process However, humidification Calculations assuming does not require the utilization of water, per se.
water will be needed to enhance ESP performance. saturation indicate that the humidification water 2-24
I
I
I /I
requirement used, process the will
will
be 0.09 water
MGO. will
more sluice sluice
If the wet solid waste disposal option is be required because the sorbent injection amount of fly indicate present that ash. the Calculations Unit 1 sluice based on water
generate will
an increased rating from its
pump capacity increase
requirement MGO if MGO. will
value of 1.17 MGOto about I.66
the wet disposal If the dry solid by Unit
option waste 1.
is used. This represents an increase of 0.49 disposal option is.used, then no sluice water
be required
Labor Requirements Labor operation performance. labor will be required of Although it for installation installation small effort of the GR/SI equipment, of system the largest
and maintenance is still
the hardware,
and verification represents
the equipment a relatively
requirement,
which can be managed
by EER using locally available skills. A breakdown of labor required for pipeline is not included Operation additional existing During test plant in Table 2-4. and maintenance it
labor to provide both general and specialired requirements is presented in Table 2-4. Labor will be supplied by CILCO or its agent and.
construction
of the that
GR-SI systems
requires training
very little by the program. to
labor;
is anticipated staff EER test
these tasks may be conducted of a brief will also be available
operations
upon completion crew personnel procedures.
periods,
oversee operation Performance additional Materials labor
and maintenance verification will
tasks will
be conducted
by EER test
crews.
No
be required
for these tests.
Requirements material the requiresmnt course of for the GR-SI technology 6470 lb/hr demonstration be
The primary is a calcium required. expected During
based
sorbent.
During operation the program. Approximately 2-25
of Ca(OHl2 will
to be used at the site.
15.000 tons of sorbent are 150 tons of sorbent will be
,
TABLE 2-4.
PROJECTLABOR REQUIREMENTS
2-26
stored in the site's sorbent silo. for which the state of Illinois tested will be selected
The raw material for is a major producer.
sorbent is limestone The sorbent to be
as part of the demonstration will be purchased
process. from local distributors.
Construction
materials
Construction materials include sorbent silo and handling equipment, piping and small hardware items. Sulfuric acid and/or CO2 required for ash pond pH adjustment will also be purchased locally Requiremnts low-sulfur Kentucky and 25 percent coal, 75 percent is delivered by rail dock _ if the wet disposal option is used.
Transportation Of the directly
to the site,
is delivered
by barge to a loading
and then trucked is all delivered day during increased increase will for for also delivery. deliveries If the to
The high-sulfur Illinois coal a short distance to the site. by truck. and requires approximately nine 20-ton trucks per operation. 26 trucks Because the GR-SI process will Illinois require coal, the truck five per day for coal delivery. approximately 31 trucks per day will utilize an will requirement trucks
full-load
amount of high-sulfur to approximately be trucked during Therefore, full-load option in and will
The sorbent' per day be required
approximately operation.
dry disposal
is used, then about 9 trucks
per day will
be
required conditions. solid flow is chosen. rate,
haul the solid waste to a landfill, The delivery trucks could potentially This option feed rate, it will is Based on the scheduled duration during
assuming full-load be used to backhaul the the landfill the sorbent period. period, that
waste to the landfill. and the coal waste will Discharges
be assessed after of the test estimated
about 1580 truck
loads of solid 2.4.2 Project Significant technology and spent
be generated
the 12-month GR-SI test
waste discharge
streams from the boilers
employing
the GR-SI
include sorbent.
stack emissions and a solid waste consisting of fly ash At the technology demonstration site an emission control 2-27
target expected expected
of
60 percent to decrease
for
NOx has been established. (0.42 lb/MBtuI. are anticipated. to maintain (1.43 lb/MBtu). emissions may be required
NOx emissions Emissions
are
to 508 lb/hr
of SO2 are
to remain at 1712 lb/hr or particulate modifications levels. of plate area.
No changes in CO, unburned Electrostatic particulate emissions SO3 injection
hydrocarbons, precipitator at present or addition
Modifications
may include
humidification,
Solid waste is expected to change in both flow rate and composition due to the addition of sorbent. Flow rate of fly ash collected by the ESP during full-load operation is expected to increase to about 12,665 lb/hr. The new composition 40 percent of the fly Ca(OH)2. ash will Bottom be 42 percent ash flow rate, coal ash, 18 percent which GR-SI will full CaS04. and per ._ not affect
to increase to 954 lb/hr se. is expected with high ash content will be used. Solid waste will be managed either
during
load because more coal
by using
the current
wet disposal
system or by using dry disposal in a permitted .waste management option will be made during detailed technical within disposal. If water, disposal the dry disposal is used, option flow then
landfi.11. Choice of a solid' Phase 1 of the project, when
the decision include design work will be done. Factors influencing requirements for maintaining ash pond pH and total suspended solids permit limits, and regulatory and economic requirements for dry
is used, then Unit rate will based on the expected
1 will
require
no sluice water
and the pond effluent option effluent because
decrease to 3.6 MGB. If the wet amount of sluice
increase, the will increase sluice will water.
water flow rate will increase to 5.3 MGB. Flow rate the increased amount of solid waste will require more of unreacted and spent sorbent to the fly ash The pH of the ash pond
The addition
cause the waste stream to become smre alkaline.
will be adju-sted to meet the permit limit of 9. Monitoring will be done during the testing, and corrective action will be taken as needed to ensure compliance lower the with permit limits for pH. Possible neutraliration measures to pH level in the ash pond include injection with sulfuric acid or 2-28
bubbling processes,
of carbon
dioxide
through limit
the
alkaline
water.
In both of these acid) will
the acid addition
(CO2 reacts
in water to form carbonic of 9. to change. Total
lower the pH to within Oil
the permit
and grease loadings
are not anticipated
suspended
solids will be maintained below the regulatory limit of 15 mg/l by increasing the residence time of the water in the pond or using chemical means such as polymeriring the sorbent Coal result contributions In addition, slightly. increasing Canadian agents. reacts with usage will from Sulfate concentration is expected SO2 to form calcium sulfate. decrease metals sorbent as a result loading will of the decrease. to be smaller to increase because
GR-SI project,
and as a -
coal-based
are expected
In general, metals than those from coal.
pH is'expected to remain at current Studies have shown that leachability pH (e.g. Cote. P. L. and Constable, 53). to decrease, effluent Data Base on Waste Leachability, 1984, p. both expected levels
levels or to increase of metals decreases with T. W.. "Development of
ASTM, Philadelphia, leachability are increase in metals the GR-SI project. 2.5 Potential
Special Technical Publication 805, Since coal-based metals loading and' there is expected to be no of or groundwater as a result
in either
EHSS Receptors
A number of environmental features could potentially be impacted by the These include air quality, surface water quality, proposed action. groundwater focuses probable quality, inpact land use, labor force, and energy resources. Section 3 on characterizing receptors. the existing environment with respect to these Section 4 evaluates the probable impact of GR-SI 1
on these receptors.
2-29
.
3.0
EXISTING ENVIRONMENT of the environmental setting features that might be affected into the six categories is characterized at by that
This section provides a description Edwards Station. focusing on environmental the proposed action. The environment were mentioned in Section 2.5. individually in this section. 3.1 Atmospheric Resources
is divided
Each of these categories
The area of central Illinois provides a typical continental winters. throughout an agent Peoria states is Figure 3-1 shows B&year According State the year. of the Illinois 34.9 inches.
in which the demonstration site is located climate with warm suanters and fairly cold average wind roses for to the Illinois Water Survey, is of a local air is quality typical Peoria for 4 months who is in midwestern State Climatologist, average annual precipitation of the specialized control and both region entire environment. 65 (Durlingtonwhich is a nonof
The climate
area and not represesentative Peoria County area Pollutants for is in federal The plant SO2 primary published
Keokuk attainment standards, Criteria
Interstate). according
in Hollis
Township
standards
TSP and SO2 secondary Status EPA. A survey
to the Geographic in February
Designations
of Attafnlnent
1985 by the Illinois
of Illinois EPA's Air Emissions Inventory Tazewell counties there are 283 businesses air pollutants, The area industrialized, River. Current construction of which 156 emit particulates, imediately but there surrounding are other
revealed that in Peoria and and industrial plants that emit 60.emit SO2. and 77 emit NOx. Station is not highly
the Edwards industrial
plants
along the Illinois
noise levels at the Edwards plant are attributable to ongoing activities and noraul plant operation (e.g. coal pile shaping
and coal feeding).
3-1
,
I
I
/Ii
JANUARY 90-YEAR TOTAL (1901-901
APRIL W-YEAR TOTAL (1901-90)
OCTOBER 90-YEAR TOTAL (1901-80)
JULY 90-YEAR TOTAL (1901-90)
Key:
For each concentric circle, the wind blows 1 percent of the Thus, a line directed vertically timefromthe direction of the line. downward from the city that passed through 10 circles would indicate that the wind blew from the south 10 percent of the time. Figure 3-l. Wind roses for 3-2 Peoria, Illinois.
3.2
Land Resources Edwards Power Station along by broad in the Plain lies is located the lower in Peoria Illinois County, River Illinois. Province. The power The plain The loess,
plant
is
situated
at the edge of the wide valleys.
Springfield power plant
of the Central upland Illinois
Lowland physiographic divides River and shallow, floodplain
is characterized
composed of thick
alluvium and glacial outwash underlain by Pennsylvania age bedrock. A flood zone map of the Edwards Station area from the National Insurance Agency is given minimal region, in Figure flooding. 3-2. Part Unit 1 is in a Zone C region, natural flood gas pipeline plain. which will is an area of to the Illinois for the of the be in a Zone Al3
which is within
the loo-year wetlands
According
Department
of Conservation.
maps have not been published
area around CILCC Edwards Station. There is a great deal of agricultural activity near Edwards Station.
According to the Peoria County Soil and Water Oistrict, the soil on which the' plant rests is classified as Fayette silt loam. The pipeline will traverse soils soils that are classified as Fayette silt loam and Sylvan silt for soils cultivated loam. crops, These hay. are considered to have good potential
and woodland use. Areas of these pasture, slope are considered to be prims for farming. The natural will require approximately comprised around four-lane 3.3 gas pipeline a right half is currently route
having small degrees of
was shown in Figure 1 mile farming. land, long.
2-8.
The pipeline Of this land, land is
of way approximately used for railroad-owned
The remaining and publicly
of CILCO-owned land, U.S. Highway 24.
owned land
Water Resources Edwards plant intakes water from and discharges to the Illinois River.
Ambient water quality data for the Illinois River at Pekin. which is about are sumnarized in Table 3-1, including one mile south of Edwards Station. 3-3
.
*kjyJ=== AREANOI ,hCLUDED TtE6? ._RM * ii.. --_. ~.~f ,
-
1 y$ a”+ TTY .‘(s / Rwx ,’ v,‘,,~/ mJd x v’7 -**
Unft 1
Edwards Station
Figure
3-2.
Edwards Station 3-4
flood
zone map.
TABLE 3-1.
WATERQUALITY DATA FOR ILLINOIS RIVER AT PEKIN (1965)
Parameter PH *Flow Rate (ft3/s) Dissolved Oxygen
High 0.2 70,200 13.0 0.08 0.18 0.003 0.009 0.009 4.4** <0.05 0.19 0.0001 0.019 0.58*f 0.18
LOW 7.4 6620 6.1 0.05 0.05 <0.003 <0.005 <0.005 1.4*
Average 7.0 20,300 9.4 0.064 0.15 <0.003 <0.005 0.007 2.3** co.05
Illinois General Use Water Quality Standard 6-9
>6 <5