This section provides an overview of the infrastructure improvements by agl27658


									                                                                             PROJECT DESCRIPTION
CHAD EXPORT PROJECT                                              SUPPORTING DOCUMENTS - VOLUME 1

                              6.0   PROJECT INFRASTRUCTURE

This section provides an overview of the infrastructure improvements planned for the project.
Approximately 245 ha of land are needed for storage yards, landfills, airfields, remote
telecommunications towers, truck parks, and service roads. Another 180 ha will be reclaimed
after construction and made available to pre-construction customary land users.


6.1.1   Transportation and Logistics

A combination of ocean-going, air, rail, and road transportation will be used to move project-
related materials where needed. Most materials to be imported into Chad and Cameroon will
arrive by ocean-going cargo vessel at the Port of Douala and be transferred to a project storage
yard located near the port. Approximately 340,000 metric tonnes (MT) of materials will be
moved through or within Cameroon during construction, with 160,000 MT transported into Chad.

The port facilities located onshore at Douala have the capability to handle the quantities of
materials needed for the Transportation System, the oil field development area facilities, and the
drilling program. The port has adequate areas suitable for material and container handling,
storage, and acreage for laydown yards. Current plans are to secure an area, which is 9.1 ha
with a rail spur. This facility located in the zone sous-douane des Etats d'Afrique Centrale area
adjacent to the port will be used to stage project materials for shipment to storage yards located
in Chad and Cameroon.

The existing system of roads within Chad and Cameroon will be used to support both
construction and operations of the Transportation System and other project facilities. To move
construction and operations materials safely and efficiently, some existing roadways will be
upgraded (with limited construction of new road segments) to provide the required
transportation infrastructure. The road network used by the project is shown on Figure 6-1.

In addition to project needs during the construction period, appropriate transportation
infrastructure will be required throughout project operations. These operational requirements will
be met by use of the Douala to Ngaoundal railroad and the Ngaoundal-Meidougou-Babongo-
Bélel- Mbai Mboum-Baibokoum-Komé road. Transportation requirements during project
operations will be significantly less than those during construction.

6.1.2   Rail System Upgrade

The capacity of the Cameroon rail system to haul the total quantity of materials to storage yards
and to the Ngaoundal railhead has been assessed. Locomotive rehabilitation, repair of rolling
stock, and construction of additional rail sidings will be part of the infrastructure improvements.

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An agreement with the concerned Cameroon railroad concession holder covers the following:

•   Freight rates

•   Procurement plan to purchase spare parts for rolling stock

•   Operations plan for using dedicated trains

•   Rehabilitation of four locomotives and 150 dedicated rail cars

•   Additions of switches, sidings and other devices

•   Rail traffic

•   Access to communications facilities

•   Maintenance program.

Rail sidings will be needed at five storage yards along the rail route to park and unload the
dedicated trains carrying pipe and material. New rail sidings will be installed adjacent to the
storage yards at Ngoumou, Nanga-Eboko, Bélabo, and Ngaoundal. In Batchenga, the existing
rail siding located in the station will be upgraded and used. New rail sidings will incorporate an
area that includes the tracks, a loading and discharge area, and unloading ramps.

As such, rail services will be provided by the concerned Cameroon railroad concession holder.
New rail sidings will conform to the specifications from the Ministry of Transport and the
concerned Cameroon railroad concession holder. The new rail siding will vary in length
between 600 and 800 m. Main design criteria are as follows:

•   Rail is narrow gauge standard 1 m

•   Maximum longitudinal gradient at rail sidings is 2.5 percent

•   Minimum radius on curved track is 400 m.

6.1.3   Road System Upgrade

In the southwestern part of the project area, the materials will be hauled by trucks from Douala
via the existing roads which do not require upgrades, to the storage yards at Kribi and Lolodorf
and by the rail line for the Ngoumou, Batchenga, Nanga Eboko, Bélabo, and Ngaoundal storage

Improvements of existing roads with limited construction of new facilities will be required to meet
the transportation requirements. The scope of work will include:

•   Repair of the Ngaoundal to Meidougou road

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                                                                            PROJECT DESCRIPTION
CHAD EXPORT PROJECT                                             SUPPORTING DOCUMENTS - VOLUME 1

•   Upgrade of roads between Meidougou, the Cameroon-Chad border near Mbai Mboum and
    Komé, including river crossing structures and construction of limited sections of new road

•   Construction of a new bridge across the Mbéré River which will constitute a new border
    crossing at the Cameroon-Chad border

•   Maintenance of the upgraded infrastructure during the construction phase and during the
    period defined in the Convention of Establishment

•   Access roads to the land easement of the pipeline

•   Access roads to remote telecommunications sites

•   Access roads to pump stations. Road Repair

Repairs to the existing roadway between Ngaoundal and Meidougou will allow materials and
equipment to move to the Transportation System pipeline and oil field development area. The
existing roadway between Ngaoundal and Meidougou is approximately 135 km long and 6 m
wide. The road and pavement are in good condition for the first 80 km from Ngaoundal. The
remaining 55 km of roadway to Meidougou is considered to be in poor condition (estimated 20
potholes per kilometer of roadway in March 1996).

Repair and maintenance of the existing paved road between Ngaoundal and Meidougou will

•   Clearing high grasses and vegetation for 5 m on both sides of the road to improve visibility
    and provide safer driving conditions (Care will be taken to not uproot or damage the
    vegetation which is good for erosion control and maintaining slope stability.)

•   Necessary maintenance of existing roadside drainage such as clearing ditches and culverts
    of debris. General minor repair of the pavement including patching of potholes will be
    necessary. Upgrades of Existing Roads

Upgrading and maintaining the existing laterite roadway between Meidougou and Komé (about
475 km) will also be required to transport material and equipment to the oil field development
area in Chad. The existing laterite roadway system between Meidougou and Komé is generally
not capable of safely and efficiently handling the amount of traffic expected for the project. The
existing roadway system averages between 3 and 6 m in width. The roadway system varies in
condition between good to bad with many trail-like segments, along with numerous segments of
steep gradients or sharp curves.

Upgrading and maintaining the existing roadway system will typically involve the following:

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•   Widening the roadway to a minimum width of 6 m

•   Designing and constructing drainage facilities such as earth ditches and culverts

•   Upgrading existing structures such as culverts, bridges, and low-water crossings, or
    reinforcing the existing structures as required

•   Clearing vegetation for up to a maximum of 5 m on each side of the road to improve visibility
    and provide safe driving conditions. Construction of New Road Segments

A small amount of new road construction will also be required since the existing roadway
system between Meidougou and Komé is discontinuous in places and considered unsafe. New
road segments will be needed either to connect the existing roadway in locations where the
road is discontinuous, or in other locations where safety considerations suggest that a new road
segment is preferable to upgrading the existing road. Some villages like Mbang Rey and Mbai
Mboum in Cameroon will be by-passed. Construction of new road segments on the road
between Meidougou and Komé will involve the same design criteria and specifications used for
the road upgrade. Access Roads

Access to the land easement of the Transportation System pipeline will be by existing,
upgradable roads and tracks wherever possible. New access roads, if required, will be routed to
avoid or minimize impacts on sensitive environmental resources. Access roads will be
constructed on a compacted subgrade and, if required, with a laterite aggregate base as surface
dressing. The access roads will be sloped to provide positive drainage and avoid erosion.

The road scope of works will be based on:

•   Road width of 6 to 7 m

•   Transversal slope: 2 to 3 percent

•   Cleared vegetation – 2 to 5 m each side, if required

•   Grades in excess of 5 percent generally avoided

•   If used, surface of the road will be laterite.

After construction is complete, temporary access roads to the land easement will be
decommissioned as needed and an active revegetation program followed. Access roads
leading to continuously used infrastructure will be maintained.

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                                                                            PROJECT DESCRIPTION
CHAD EXPORT PROJECT                                             SUPPORTING DOCUMENTS - VOLUME 1 Road Design Criteria

Project-related traffic levels are estimated to peak at approximately 35 truck movements per day
(each way) with the majority of the traffic on the road between Ngaoundal and Komé. Other
routes, including the existing roadways between Douala and Kribi and between Douala and
Lolodorf, are expected to carry a peak load of approximately 16 truck movements per day (each

Roads will be designed for maximum vehicle speeds of 60 km per hour (kph) under normal
loads as defined by national standards. Certain sections will be designed with a reduced design
speed. The maximum allowable speed for oversized project loads will be 20 kph in restricted
areas including village crossings, blind curves, steep inclines, major intersections, river
crossings, and at-grade rail crossings.

Roadway signs will be installed in accordance with national standards and symbols using metric
units. Both regulatory and warning signage will be posted along roads where appropriate.
Regulatory signs will provide notice of traffic laws or regulations. Warning signs will call
attention to conditions along the road that are potentially hazardous to traffic operations. Each
road width restriction or speed limitation will be announced with adequate warning signs. Paved
roads and existing laterite roads will be designed and upgraded according to the typical cross
section shown on Figure 6-2.

6.1.4   Mbéré River Bridge

The bridge across the Mbéré River (Figure 6-3) will be situated 5 km southeast of Mbai Mboum
near the Cameroon-Chad border. It will have a total length of 108m divided into two central
spans of 32 m, and two lateral spans of 22 m. The three piers and the abutments will be
founded directly on the bedrock. The bridge superstructure will consist of a prefabricated
reinforced concrete slab 10 m wide. Two circulation lanes of 3.5 m and two walkways will allow
traffic on the bridge.

6.1.5   Storage Yards

In addition to the Port of Douala yard, eleven storage yards will be constructed to stage
materials and support pipeline and pump station construction activities. The approximate
locations are shown on Figure 6-4. Five storage yards located at Ngoumou, Batchenga, Nanga
Eboko, Bélabo, and Ngaoundal will be connected with the main railroad by a rail siding. The
Ngaoundal yard will be used for consolidation and the interim storage of materials and
equipment bound for Chad and the northern Cameroon part of the project. Locations, sizes and
primary features of the storage yards are indicated in Table 6-1, and a typical layout is shown in
Figure 6-5.

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The Komé yard will be part of the oil field facilities and mainly store materials and equipment for
the OC, gathering stations, and drilling activities. Komé will not be used to store pipe for the
pipeline construction.

The Douala, Ngaoundal, and Komé yards will be used solely for the storage of materials and
equipment. During the construction phase, the logistics contractor will operate these three

Site work will include vegetation clearing, topsoil stripping, earthwork, laterite gravel pavement
(typically comprising 0.30 m of laterite), drainage, and where appropriate, construction of rail
spurs. An access road will connect the storage yard to an existing road.

Approximately 70 percent of the area will be assigned as pipe and materials storage, with the
remaining area dedicated for moveable construction camps for logistics, pipeline and pump
station contractors, and for maneuvering roads. The construction camps will be equipped with
fencing, lighting, buildings, and other equipment needed for yard operations.

A truck park will be constructed on each side of the Mbéré River bridge to facilitate the transit of
materials and equipment at the Cameroon/Chad border. Typical civil works will be similar to
those planned for the storage yards. Customs and security buildings for traffic not related to the
project will be erected at these truck parks.

6.1.6   Air Fields

Air transportation will be needed for moving personnel and critical materials, and for emergency
situations during construction and operations. The following private airfield and aircraft
accommodations will be planned to supplement existing in-country airports:

•   One airfield located southeast of the community center in the Komé area for personnel and
    cargo transportation; it will allow transportation of oversized/overweight loads by heavy

•   One laterite landing strip at each of the pumps stations in Cameroon suitable for visual flight
    access by Twin Otter type aircraft and helicopters

•   One helipad at the PRS.

Upgrades of existing landing strips at Bélabo, Ngaoundal, Baibokoum, and Bessao will be
handled on an as needed basis. Limited fuel storage will be provided for the Twin Otters at
each landing strip. A typical layout of an airfield is shown in Figure 6-6.

Temporary airstrips or helipads will be located near main contractor’s camps in Meiganga, Bélel,
and Dompta. The international airport in Douala will be used by heavy cargo aircraft for take off
of the oversized/overweight loads to be delivered to the Komé airfield.

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CHAD EXPORT PROJECT                                            SUPPORTING DOCUMENTS - VOLUME 1

6.1.7   Telecommunications

The telecommunications system provides consistency with current Exxon Corporation system
architecture standards during construction and development activities through the operation of
the project. A comprehensive state-of-the-art satellite-based telecommunications system has
been designed. A satellite-derived network is preferred because it can be rapidly implemented
and does not require extensive site development. The integrated system will employ
conventional Intelsat service to link field sites, including pump stations, the PRS, the OTCC in
Douala, and the FSO vessel. Communication with the field facilities in Chad will be handled
with a similar satellite-based system. The system also links offices in N'Djaména, Douala, and
Houston with the construction, pipeline, and production facilities. An early system was installed
to support the drilling, exploration operations, and field studies. It will be upgraded to the
permanent design to support construction and operation of the project. This system will also
support project automation and computing. The system is composed of the following major

•   Satellite communications network (Intelsat/Inmarsat)

•   Telephone system (e.g., carrier service and PABXs)

•   High frequency and very high frequency radio systems

•   Microwave systems (offshore and interfield)

•   Personal computers with associated network links

•   Aviation (flight following).

The satellite-based system is the main telecommunications system for the oil field development
area, Transportation System, and FSO. This system is capable of supporting the project's local
and international voice and data requirements. The wireless telecommunications facilities are
intended to provide a safe and reliable operating environment in remote locations not served by
the public network. This system will enable the Pipeline Automation System and the Block
Valve Interfaces utilizing the master automation unit to collect pipeline block valve status and
pump station data on operations.

Construction of the system uses a modular design. The modules are self-contained (i.e., base
system components and generators), and form the hubs for the final system. Radio repeater
sites along the pipeline route, automation for pipeline and production, and field and local
telephone systems are linked together through these communication hubs. The
telecommunications centers will be used for the pipeline construction activities. There will be
five locations for the permanent hubs. They are:

•   Komé/Doba OC and Pump Station No. 1

•   Douala/Oil Traffic Control Center

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•   Pump Station No. 2

•   Pump Station No. 3

•   PRS and FSO.

A very high frequency (VHF) radio system is proposed for communications between the fixed
locations such as the OTCC in Douala and remote field areas, and for telecommunications with
remotely operated pipeline block valves. A network of VHF/UHF radio sites will extend the
range of mobile telecommunications along the entire pipeline route.                         Remote
telecommunications tower sites will measure 20 m x 20 m and will require construction of
entrances for occasional maintenance. The access roads will be 4 m wide and designed to
accommodate 4-wheel drive trucks; the lengths will vary by location. Table 6-2 provides the
proposed locations of all telecommunications tower sites, including those at fixed facility sites.

The telecommunications towers selected for use will be freestanding and self-supporting to
minimize the footprint. Except for the entrances, minimal clearing outside of the 20 m x 20 m
areas will be required. The telecommunications towers range in height from 10 m to 50 m
based on surrounding terrain. The towers will not be lighted. For security purposes, the sites
will be fenced and one unarmed security guard will be hired for each site, on a full-time basis, to
monitor the site. The layout of a typical telecommunications site is shown in Figure 6-7. Both
the telecommunications towers and block valve sites are shown on Figures 5-2a through 5-2d.

6.1.8   Waste Facilities

The proposed project will generate various types and volumes of solid, liquid, petroleum-based,
and hazardous wastes during construction and operations of facilities. Waste management
guidelines that include the prohibition and/or substitution of certain chemicals and the reduction,
reuse, treatment, and environmentally acceptable disposal of project-related waste have been
prepared. Required waste management facilities will be constructed and managed by the
project. A project-level waste management plan has been prepared based on these guidelines.
Area/contractor-specific waste management plans for major construction activities will also be
drafted during the final engineering and design phases of the project.

Waste management facilities designed and constructed as part of the project and the respective
wastes disposed of or treated during construction and operation of the project are presented on
Table 6-3. These facilities will be designed to meet applicable World Bank guidelines and
international standards for waste management practices.

No radioactive wastes are expected to require disposal in Chad or Cameroon, and will not be
accepted at project waste facilities. Radioactive sources are commonly used in petroleum
industry projects for quality control purposes, and any such sources imported for project
purposes will be exported for disposal. Any radioactive sources originating in Chad or

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                                                                              PROJECT DESCRIPTION
CHAD EXPORT PROJECT                                               SUPPORTING DOCUMENTS - VOLUME 1

Cameroon will be subject to disposal according to the provisions of Chadian or Cameroonian
law, respectively, and will not be accepted for disposal in project facilities as currently designed.

Waste Volumes and Characteristics – Preliminary estimates of waste volumes have been
made for various locations and phases of the project and are shown in Table 6-4. These are
order-of-magnitude estimates for determining disposal options. In estimating waste amounts, it
was necessary to make some assumptions. These assumptions include:

•     No pre-existing infrastructure is available in the project area for waste management and

•     Oil-contaminated soil will be expected to result from small spills and leaks as a result of
      normal construction and operations activities.

Waste Management Facilities - No pre-existing infrastructure is available in the project area
that meets the needs for waste management and disposal. Five landfills, constructed in stages
and containing both hazardous and non-hazardous waste cells, are proposed for handling
project-related waste: Komé, Dompta, Belabo, Ngaoundal and Kribi. The largest landfill at
Komé will occupy approximately 12 ha. The landfills in the vicinity of the two pump stations and
the PRS will be approximately 4 ha in size, with the site at Ngaoundal being half the size. An
incinerator appropriate for destruction of medical wastes, oily debris, domestic wastes,
combustible chemicals, and oily processes sludge will also be installed at the landfill sites.

Sewage Collection, Treatment, and Disposal Systems – Wastewater collection, treatment,
and disposal systems will be required at each manned facility. The wastewater generated
during both construction and operations will be treated in a sewage treatment system and
disposed in accordance with World Bank guidelines.

The design capacity of the sewage treatment system, either a packaged plant and/or septic
system, will be based on the resident and day labor personnel population. The treatment
methods will be capable of processing peak sewage influent flows and meeting project effluent
or receiving water quality guidelines. The treated effluent will be discharged to a subsurface
infiltration system, surface absorption or evaporation ponds, or perennial surface waters.
Potential leaching or erosion at disposal locations will be considered.


The various infrastructure contractors will determine the size of the construction work force.
The anticipated construction staff will consist of approximately 1,500 nationals and 200
expatriates during the peak construction period.

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6.2.1   Materials Management

A Materials Management System will be developed with the Logistics Contractor to move
project materials from worldwide marshaling yards to Douala and the final destination. Materials
to be utilized for construction in Cameroon largely will be transported to storage yards either
from the port of Douala via the national rail system using Ngaoundal as a railhead, or to a lesser
extent, over the national road system. From Ngaoundal, the materials will be transported over
repaired or upgraded existing infrastructure or via the pipeline land easement. In the western
section of the project, the materials will be transported from Douala via the existing roads to
Kribi and Lolodorf which do not require upgrading, and via the railway for the Ngoumou,
Batchenga, Nanga Eboko, and Bélabo storage yards.

Most of the material destined for Chad will be carried from the port of Douala by rail to
Ngaoundal, and then by road across the Cameroon-Chad border at the Mbéré River southeast
of Touboro. Loads transported by road or rail will have a maximum weight of 60 tonnes.
Approximately 36 heavy cargo flights will rotate through Komé, Chad from the airport in Douala
over the construction period, representing about one percent of the total material required.

6.2.2   Roads

Initial work will focus on establishing work camps and laydown areas for material. In Cameroon,
the two construction camps will be at Bélel and Dompta, while in Chad, the one construction
camp will be at Bam. Camps will include housing accommodations and catering facilities for the
contractor's management staff. Also included in the camp facilities will be related workshops
and water treatment, wastewater treatment, incinerators, and waste handling systems.

The actual construction of the roads will begin with clearing and grubbing operations where
work expands beyond the existing cleared right-of-way. The majority of road upgrade work will
be within the existing open right-of-way. Vegetation clearing for up to 5 meters on each side of
the road will be performed where safety is a concern such as curves and intersections. Clearing
operations will primarily be accomplished with appropriate construction equipment with existing
vegetation being windrowed along the downslope side of the cleared area to control runoff.
During this clearing effort, the contractor will strip and preserve topsoil and use it to provide a
suitable growth medium for revegetation of disturbed areas.

Current plans call for several spreads of equipment to be mobilized for the road work. Three
spreads are planned for Chad and two spreads are planned for Cameroon. Each spread might
consist of bulldozers, excavators, graders, compactors, water trucks, haul trucks, and crew
trucks for transporting workers.

The drainage improvements will follow the early clearing work. Drainage improvements will vary
from upgrading of existing road ditches to constructing entirely new culverts with headwalls.

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Extending existing culverts where their size and elevations are adequate will also be
considered. Contractor work in existing drainage courses will be coordinated with weather
conditions. Completing the installation of culverts to control runoff across road construction
areas will be an early priority. For some water crossings, the existing structures will be
upgraded while establishing a temporary water crossing as required to accommodate local

The locations of laterite borrow pits will be selected based upon construction needs and the
availability of laterite. The sides of the borrow pit will be sloped efficiently to prevent injury to
personnel, livestock, and wildlife, and to prevent erosion. Reclamation provisions include
topsoil conservation and replacement.

Traffic safety in the construction areas will be an integral and high priority element. Traffic
control devices will include signs, barricades, devices, and flagging. Construction equipment
will be parked sufficiently away from the traveled roadway when not in use. At the end of the
work day, signs will be covered or removed from the traffic view to a location far enough from
the road so as not to be a hazard to motorists. Where the construction activity cannot be
completed in a normal work day, adequate warning lights and barricades will be placed to allow
safe operation of vehicles during the night. Routine inspection of traffic control elements will be

Maintenance work will consist of cleaning and reshaping the drainage ditches as well as
removing sedimentation accumulation in the sediment ponds. Repairs to erosion control
features such as silt fences and diversion channels will also be included. The road platform will
require grading, watering, and compaction of the laterite surface. Additional laterite will also be
required in certain areas of high use or damage from rainfall events. Maintenance work will be
planned and conducted with the safety of the motorist, pedestrian, and worker in mind at all
times. Traffic control will be integral to the effort with adequate warning signs and flagmen
positioned at each area of work.

To avoid damaging the road during the rainy seasons, a rain barrier system will be installed and
operated in compliance with appropriate Cameroonian and Chadian regulations. Dust control
will be performed by watering or other means such as chemical treatment. Watering will consist
of spraying water over the width of the roadway utilizing conventional water trucks equipped
with sprayers. Water sources will be streams, dammed watercourses, or water wells. The
project will provide road maintenance and dust control for a limited period of time after
commencement of operations in accordance with the Convention of Establishment.

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6.2.3   Storage Yards

Storage yard construction will be similar to the road work. Construction camps will be of the
temporary and mobile type in Cameroon while in Chad the camp for the road work will be
located near the Gadjibian Storage Yard.

Construction will begin with clearing and grubbing operations. Sheet flows from the disturbed
areas will be larger and, therefore, require more substantial erosion control features to be
installed and maintained.

In southern Cameroon, two construction spreads will be mobilized to construct the eight storage
yards. The Dompta storage yard and the truck parks at the border will be constructed by the
road upgrade workforce. Construction work, erosion control measures, and reclamation work
will all be similar to the road construction effort.

6.2.4   Mbéré River Bridge

The bridge construction will start with early activities including sand and aggregate stockpiling
and pier/foundation work in the Mbéré River. This early work will be completed during the low
flow periods for the Mbéré River. The contractor’s environmental plans/procedures will describe
construction methods for this work that minimize impacts on the Mbéré River. The bridge
construction, for example, will limit work in the river to piers and foundations; the actual deck
work will be constructed on the Chad side abutment and pushed onto the piers. The superficial
foundations will also limit the impact on river disturbances.

Borrow pits for sand and gravel will be located near riverbeds while large boulders will be
located along the road. Extractions in sloped riversides will be limited to avoid further erosion
and difficult site restoration. Riverbed borrow sites will avoid well vegetated and wetland areas.
Borrow areas will also be sufficiently away from sites of future construction to protect piers from
eddying and localized acceleration at the bottom of the piers. Borrow areas will be limited to
riverbanks which can be renewed during rainy season flows.

6.2.5   Telecommunications

Remote telecommunications sites will be cleared prior to the facility installation. The contractor
working on the road upgrades will be responsible for site clearing, soils preparation, and setting
the tower and shelter foundations. An estimated 20 personnel will camp at the remote sites
during the facility installation, which will involve telecommunications tower erection and
equipment installation. The remaining telecommunications sites will be installed in sequence
with the pipeline construction using the pipeline construction base camps for support.

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CHAD EXPORT PROJECT                                              SUPPORTING DOCUMENTS - VOLUME 1

6.2.6    Waste Management

The first contractors in the field, the infrastructure and logistics contractors, will provide their
own waste treatment facilities until the landfills are constructed. In accordance with the project
waste management plan, the contractors will provide incinerators, interim waste storage
facilities, permanent waste storage facilities for select waste streams, and small short term
usage landfills at strategic locations if required. Incinerators are required at all construction
sites and certain inert wastes will be kept in interim storage until the common project service
landfills are operational. Landfill construction will require earthwork, an access road, and the
installation of a composite liner, leachate collection system, and monitoring wells.

During the construction phase, the landfill and incinerator will receive contractors' wastes for
disposal on an "as approved" basis. Minimization of waste volumes and material hauled to the
landfill for disposal will be emphasized. The incinerator and landfill used for construction
purposes will be left in place and used during the operations phase of the project.

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CHAD EXPORT PROJECT                                                                                          PROJECT DESCRIPTION

                                                         TABLE 6-1
                                                      STORAGE YARDS

                               Provisional Location                                   New          Existing
                                                         Land        Approximate
  Storage                          UTM WGS84                                         Access        Access
                  Status                               Easement       Area to be                                   Rail Siding
   Yard                                                                            Road to be     Road to be
                              Easting      Northing   Secured (ha)    Used (ha)
                                                                                   Constructed    Upgraded
   Douala       Permanent     (Existing)                  9.1            9.1         Existing         --         Rehabilitation of
                                                                                                                 existing rail spur
   Kribi        Temporary      602054       323337        8.1            5.9        ~ 750 m           --                 --
  Lolodorf      Temporary      692738       358883        17.4           7.6            --            --                 --
 Ngoumou        Permanent      758781       400677        15.9           8.3        ~ 1700 m          --       New rail siding to be
                                                                                                               constructed ~700 m
 Batchenga      Temporary      792575       473348        10.2           6.7           --             --         Rehabilitation of
                                                                                                                existing rail siding
                                                                                                                      ~600 m
   Nanga        Temporary      211036       521809        21.5           15.7        ~ 600 m       ~ 600 m     New rail siding to be
   Eboko                                                                                                       constructed ~ 700 m
   Bélabo       Temporary      307145       543724        27.2           20.2          --          ~ 3500 m    New rail siding to be
                                                                                                               constructed ~ 750 m
 Ngaoundal      Permanent      310664       715427        16.6           12.2          --          ~ 2000 m    New rail siding to be
                                                                                                               constructed ~ 700m
Meidougou       Temporary     410361       710798         28.9           13.3        ~ 20 m           --                 --
 Dompta         Temporary     517333       808307         14.0           13.1           --            --                 --
Gadjibian       Temporary     528450       890850         15.9           14.4        ~ 50 m           --                 --
 Komé*          Permanent     354598*      940009*        11.5            8.2           --            --                 --

* UTM WGS72 Coordinate Basis

PD English Tables 04-28.doc                                                                                      May 1999

                                                           Section TOC
PROJECT DESCRIPTION                                         CHAD EXPORT PROJECT

                                  TABLE 6-2

                           South Yaoundé Pass
                           North Yaoundé Pass
                           Mt. Sousoumou
                           Mt. Mengang
                           Mt. Bomkene
                           Bélabo PS No. 3
                           Dompta Outstation
                           Dompta PS No. 2
                           Mt. Zali
                           Mt. Godoke

May 1999                                               PD English Tables 04-28.doc

                                       Section TOC
                                                             SUPPORTING DOCUMENTS - VOLUME 1
CHAD EXPORT PROJECT                                                      PROJECT DESCRIPTION

                                      TABLE 6-3

  FACILITY                                                      WASTE
     Landfill  Nonhazardous Waste Cell Dewatered wastewater treatment sludge
                                        Pigging residue ash
                                                                      Scrap metal and plastic
                                        Cement and concrete wastes
                                        Used rags, brushes and other paint wastes (not
                                            including paint)
                                        Drums, barrels, containers
                                        Incinerator ash
                  Hazardous Waste Cell Batteries
                                        Noncombustible hazardous wastes
                                                   Incinerator ashes with high metals content
Incinerator                             Food wastes
                                        Medical wastes
                                        Used lubricants, motor oil, transmission oils, drive
                                            grease, cleaning solvents
                                        Oily filters
                                        Oily rags
                                        Scrap plastic
                                        Solvent-based paints/coatings
                                        Oil-based drilling fluids
                                        Fuel and lube oil filter sludges
                                        Used lube oil
                                        Used hydrocarbon-based solvents, chemicals,
                                            additives (with hydrocarbon bases)
                                        Pigging wastes
                                        Sludges, slop oil, and tank bottoms
            Wastewater Treatment System Sewage
                                        Wash water
                                        Water from container washing operations

PD English Tables 04-28.doc                                                          May 1999

                                        Section TOC
PROJECT DESCRIPTION                                                          CHAD EXPORT PROJECT

                                         TABLE 6-4
                                ESTIMATED WASTE QUANTITIES

                                              Construction and Startup 1         Operations 2
Field Facilities and Camps
Landfill Nonhazardous (Tonnes)                                      36,000                    15,000
Landfill Hazardous (Tonnes)                                             50                        10
Incinerator (Tonnes)                                                11,000                     4,000
Wastewater Treatment (m3)                                          500,000                   165,000
 Produced Water Treatment System (m3)                            1,080,000                   950,000
Pump Stations/PRS
Landfill Nonhazardous (tonnes)                                      2,800                      1,000
Landfill Hazardous (tonnes)                                            40                          2
Incinerator (tonnes)                                                2,200                        990
Wastewater Treatment (m3)                                         160,000                      9,900
Pipeline Camps (2 Total)
Landfill Nonhazardous (tonnes)                                        500
Landfill Hazardous (tonnes)                                             0
Incinerator (tonnes)                                                  100
Wastewater Treatment Plant (m3)                                   140,000
Storage Yards
Landfill Nonhazardous (tonnes)                                         200
Landfill Hazardous (tonnes)                                              0
Incinerator (tonnes)                                                   400
Wastewater Treatment (m3)                                           24,000
Incinerator (tonnes)                                                   100                       100
Wastewater Treatment (m3)                                            4,000                     3,000

    Amounts shown represent total quantities.
    Amounts shown represent annual quantities beginning with the first year of operations.

May 1999                                                                  PD English Tables 04-28.doc

                                            Section TOC

                                                                                                                                                                  S       #

 Location Map                                                                                                                              TOUBORO
                                                                                                                                                     # #
                                                                                                                                                     S S
                                                                                                                                                      T% T
                                                                                                                                                      $U $

                                                                                                                                      MBAI MBOUM
                                                                                                                 S                        DOMPTA


                                                                                                           S                    #
                                                                                                                                S   MEIGANGA

                                                                                                                               S    MEIDOUGOU



                                                                                                                     DENG DENG

                                                                                                               SS                                        Central African Republic

                                                                                   NANGA EBOKO

                                                                                           S                          #


                                                                               S               #
                                                               S   ESÉKA
                                                                               YAOUNDÉ         AYOS


                                                               S                                                           N


            Atlantic                        #
                                            S           BIPINDI

            Ocean                                                                                               50         0     50   Kilometers


 Pipeline                                       #
                                                S     City/Town
                                                                                                                                                             PROJECT TRANSPORTATION

 Railroad                                       %
                                                U     Bridge
                                                                                       Chad Export Project                                                            INFRASTRUCTURE
 Major Project Access Roads                     T
                                                $     Truck Park

Occasional Access Road and Light Traffic              FSO

 International Boundary

                                                                                                                                                                                             FIGURE 6-1

                                                                                                    Section TOC
                              5.00 m
                        Vegetation Clearing

                       1.00 m                                           3.00 m +                      3.00 m +                                   1.50 m    1.00 m

                                                                         3%                              3%

               1                                  1                                                                                  1                                  1
                   2                          3                                                                Earthmoving Level           3                        2

                                    0.50 m                                                                                                                0.50 m

                                          1. Laterite thickness variable from 10-30 cm.
                                          2. Road widths reduced through villages as required.
                                          3. Ditch size/slope variable and sized to accommodate water level.

Not to Scale

                                                                Chad Export Project                                                ROADWAY CROSS SECTION
                                                                                                                       D   M
                                                                                                                               DAMES & MOORE
                                                                                                                       GRO P   D    OOR   RO P CO P                     FIGURE 6-2
                                                                                Section TOC
               Abutment                                                                                                                          Abutment
                  C0       Span 1           P1                  Span 2              P2       Span 3             P3             Span 4              C4
                          22.000 m                             32.000 m                     32.000 m                          22.000 m

                                                    Concrete Pier

 Rock                                            Foundation
                                                                    C MBÉRÉ RIVER                                                                Gabions

Not to Scale

                                                                                                                     MBÉRÉ RIVER BRIDGE
                                                                Chad Export Project
                                                                                                       D   M
                                                                                                               DAMES & MOORE
                                                                                                       GRO P   D     OOR   RO P CO P                        FIGURE 6-3
                                                                              Section TOC


                                                                                                                                           BESSAO   %
                                                         Nigeria                                                               TOUBORO
                                                                                                                                       # #
                                                                                                                                       S S
 Location Map


                                                                                                                            MBAI MBOUM





                                                                                                S                a#



                                                                                                                                                   Central African

                                                   Cameroon                                                                                             Republic


                                                                                                     DENG DENG


                                                                        NANGA EBOKO

                                                                                S                        #
                                                          BATCHENGA                                          BERTOUA

                                                                    S               #
                                                     S          %
                               EDÉA                                 YAOUNDÉ         AYOS





      Gulf of                      %

                                                                                                         50      0       50   Kilometers


  Pipeline                     %
                                       Permanent Storage Yard

                                                                                                                                                        MAIN STORAGE YARDS
                                       Temporary Storage Yard
                                                                            Chad Export Project
  Major Project Access Roads
                               S       City/Town

  Occasional Access Road
  and Light Traffic

  International Boundary

                                                                                                                                                                            FIGURE 6-4

                                                                                            Section TOC
                                                                                                          Pipe Storage Area Berms
                                                                                                          Typical for All Storage Areas

                                                   6m                         6m           30 m           6m           6m       6m                  6m

                   SECURE AREA                                   Area                                            Pipe Storage        Pipe Storage
                                                                                                                     Area                Area
               Temporary Office
               X         X     X        X          X

                                                                  30 m                                                 30 m               30 m

                                                                 A                                                          A
                                   Pipe Storage

                                       30 m

                                                          Laterite Surfaced Roads                                      6m


                   Berms constructed of
                   suitable earth material,
                   free of rock, vegetation,                                               Storage Yard Road
                   or other objectionable
                                            6.0 m       5.5 m   4.5 m 5.0 m   5.0 m 4.5 m         5.5 m      6.0 m              1m

                                                           300 mm

                                                                    SECTION A-A

                                            TYPICAL STORAGE YARD LAYOUT

                                               Drainage to be installed, culverts to be provided
                                               so that pools of water are not trapped or formed
                                               in the storage yard.
Not to Scale

                                                                                       TYPICAL STORAGE YARD LAYOUT
           Chad Export Project
                                                                                   D   M
                                                                                           DAMES & MOORE
                                                                                   GRO P     D      OOR    RO P CO P                      FIGURE 6-5
                                                                     Section TOC
                                   Approach/                             Markers                  See Detail "A"                                  Departure

                                                                                                                                                         40 m

                                                                                                                                                                42 m
                                                 22 m
               1 m Cleared Strip                                                   OPERATION ZONE
               Around Field

               Cleared Approach          160 m                                          740 m                                           160 m                 Cleared Approach

                                                                                        1060 m

                                                                 NEW AIRFIELD TYPICAL LAYOUT

                                                                                        42 m
                                                        Access Road 4 m Wide

                                                                  45 m


                                                                                   DETAIL "A"
Not to Scale
Note: Total Land Required 46,500 m
Access Roads not Included
                                                                                                                                      TYPICAL AIRFIELD
                                                                 Chad Export Project
                                                                                                                    D   M
                                                                                                                            DAMES & MOORE
                                                                                                                    GRO P   D   OOR   RO P CO P                           FIGURE 6-6
                                                                                    Section TOC
                                                                     15 to 20 meters




                                                                                                               15 to 20 meters
                                                                                            Solar Panels

                                                                      Access Road
                                                                      4 meters wide

May be remote or located within pipeline right-of-way / adjacent to roadway.

          Chad Export Project                                                          TELECOMMUNICATIONS SITE
                                                                               D   M
                                                                                       DAMES & MOORE
                                                                               GRO P   D     OOR   RO P CO P                     FIGURE 6-7

                                             Section TOC                                   Next Chapter

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