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Draft Terms of Reference
Development of Siting and Performance Criteria, and Preparation of Concession/contract
Bidding Documents for Solid Waste Transfer and Sanitary Landfill
(With Composting, Materials Recovery, and Incineration Facilities, as deemed Appropriate by
Bidder for the Long-Term, i.e., beyond the Project Period)
General:
The Government has identified economic transfer and improved disposal of solid waste as a priority
problem and requires assistance in development of concession/contract bidding documents for an
integrated solid waste disposal system to address this problem. The new transfer facilities and
extended improved disposal facilities are proposed to be part of an overall city-wide project to
improve solid waste management. Part of total investment financing will be provided by the Project,
and part of the investment financing will be provided by the private sector – through a long-term
concession/contract agreement.
The concession/contract bidders shall be free to propose any sites they prefer, so long as they could
meet the siting criteria prescribed, enable environmental permitting, and achieve public acceptance.
Alternatively, the Government will identify one or more sites that could be used for the proposed
facilities. For the site(s) to be identified by Government, site data, site field investigations, and
preliminary site environmental audit reports have been conducted by others. Close coordination
between the Consultants of this effort and the site studies is expected. A map showing Government’s
offered site location(s) and a description thereof is attached to these terms of reference.
The Consultant shall prepare a report assessing the alternative technologies and developing
preliminary design concepts and cost estimates to facilitate Government’s anticipated
concession/contract tendering process. For purposes of tendering, the Consultant shall develop all the
bidding specifications, including: siting criteria, performance criteria, design standards, and operating
norms for the proposed disposal facilities. The bidders will be allowed to bid the mix of disposal
technology (e.g., sanitary landfill, composting, incineration, and materials recovery) that they believe
will be most cost-effective.
Each bidder’s proposal shall include at least one sanitary landfill, even as part of the mix of disposal
technologies, if only for the residuals and rejects to be generated by the other disposal technologies.
It shall be possible for a bidder to offer sanitary landfill as the only recommended disposal
technology, if that is what the bidder believes is most cost-effective. Each bidder’s proposed
facilities shall accommodate the projected 20-year design capacity requirements for all of the mixed
municipal solid waste. It shall be assumed that any sanitary landfill, materials recovery, or compost
plant would operate for 12 hours daily and that any incinerator or waste-to-energy facility would
operate for 24 hours daily.
If the facilities are proposed to be located more than 30 minutes one-way travel time from collection
routes, the bidders are expected to include at least one transfer station and related transfer equipment
to accommodate those collection routes, as part of their overall concession/contract bid. Therefore,
the Consultant shall include all necessary siting criteria, performance criteria, design standards, and
operating norms for the proposed transfer facilities and equipment.
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Each bidder will be given enough time (about 6 months) to design facilities and specify equipment
(including all related civil works and essential stationary and mobile equipment) as part of its bid.
Each bidder will provide its own sites for all of the proposed facilities, unless the Government's
available sites are acceptable to the bidder. All bidders shall be pre-qualified, and only a top-ranked
few will be requested to spend the time and effort to undertake bid preparation. It is anticipated that
each qualified bid will be partially reimbursed as part of the capital expense of project
implementation.
The design effort is intended to be participatory, so that public opposition is minimal to the bidders’
final sites and facility designs. To this end, the Consultants are advised to encourage the Government
to form and convene a steering committee comprised of local authorities as well as representatives of
key non-government organizations and citizens groups. The Consultants are expected to fully
cooperate with the Government's steering committee and be available for monthly meetings to
discuss progress.
Objectives:
The goal of this work is to develop concession/contract tender documents that enable equitable
competitive bidding to be conducted for implementation of an integrated waste disposal system
(including transfer if needed). The document shall specify as much detail as possible to minimize
risk to the Government that the facilities would fully meet their needs and have a suitably long
economic life. Furthermore, the document shall specify as much detail as possible to minimize risk
to the private sector that all bids would be developed on the same basis.
The feasibility study, preliminary design, and budgetary cost estimation conducted as part of this
work shall enable the Government to effectively pre-qualify concession/contract bidders and evaluate
their proposals and bids.
The work involves developing the most cost-effective siting, design and performance criteria to
address environmental impact mitigative requirements and provide cost-effective disposal. All
requirements of the Government shall be included in the criteria. These criteria will provide an
equitable basis for bidders to develop competitive proposals for disposal concession/contracts. Based
on these criteria, bidders will develop final designs, with final design drawings, construction details,
cross-sections, final quantities, costs, technical specifications, tender documents, operating manuals,
and health and safety plans.
Scope of Work:
The Consultants’ efforts shall address the following facility requirements within their engineering
analysis and designs:
1. Specify the design requirements so that the following needs are addressed:
 Surface water drainage and storage, as needed.
 Accommodations for workers to change clothing, wash, eat and rest.
 Buffer zones and operational controls to handle noise, odor and dust, as well as to meet
aesthetic needs compatible with the surrounding environs.
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Access roads, internal roads and traffic management systems for safe and efficient flow of
traffic for trucks into and out of, as well as within, the facilities.
Safe and efficient loading/unloading of collection and transfer vehicles. Sorting and
storage facilities for recyclable and special wastes.
Signs identifying the facilities and providing public relations.
Sizing and configuration of refuse cells to handle incoming wastes so that all landfilled
wastes are covered daily.
Compaction, side-slope, and soil cover requirements for each daily refuse cell.
Simple open-air windrow composting of suitable putrescible organic wastes, followed by
screening and bagging of final product.
Combustion of suitable combustible organic wastes, after adequate storage and air-drying
to optimize moisture contents, with burning at temperatures above 800oF for 2 seconds
minimum retention to enable minimum 1989 European Union air emission standards.
Collection, treatment, and discharge systems for all leachate-contaminated waters so as to
meet discharge requirements to meet national water quality objectives of the receiving
water body and any downgradient receiving waters.
Collection, ventilation, and, as needed, flaring systems for all landfill gases to meet
environmental, health and safety needs of the workers and surrounding residential
community.
Collection, after-burning, and pollution control for all combustion-related air emissions to
meet environmental, health and safety needs of the workers and surrounding residential
community.
Office and record-keeping facilities for site supervisors and support staff, as well as for
training and meetings.
Fencing and gate control facilities, including weighbridges, to secure the site and
adequately manage all solid waste accounting and enable performance monitoring of all
incoming vehicles.
Parking and workshop facilities, as appropriate, for landfill equipment that will serve the
facility.
Washing facilities for the landfill equipment, and collection and transfer vehicles.
Civil and electro-mechanical works able to withstand foreseeable seismic and climatic
events.
Program of routine preventative maintenance, scheduled overhaul, and refurbishment for
all mobile and stationary equipment and facilities.
Required condition of all mobile and stationary equipment and facilities for each year-end
inspection during the concession/contract period, including required condition at time of
ownership transfer from the concession/contractaire to government.
Specify requirements so that all construction tasks are clearly explained, to-be-built facilities are drawn
with adequate details, and quality control measures are fully identified.
Specify operating and maintenance manuals for each proposed site to enable safe and effective site
preparation, landfill cell construction, soil cover, leachate treatment, gas management, waste sorting,
waste treatment, waste combustion, energy recovery, by-product materials packaging, record-keeping
activities, closure activities, and environmental monitoring (during disposal and post-closure) to be
conducted in a safe, efficient, and environmentally sound manner.
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Specify health and safety measures to protect workers, visitors and surrounding residents during
construction, operation, and closure. Include specifications for vaccinations and the minimum
content of regular medical check-ups for operational personnel at the proposed facilities.
Specify environmental monitoring activities for construction and operation, to include monitoring of
traffic queues, resident complaints, noise, odor, vectors, dust, air emissions, wastewater treatment
levels, wastewater discharges, slope stability, erosion, aesthetics, and gaseous emissions.
Scope of Services:
The work involves developing the most cost-effective design concept to address environmental
impact mitigative requirements (as outlined from the environmental analysis report) and developing
final designs, with final design drawings, construction details, cross-sections, final quantities, costs,
technical specifications, tender documents, operating manuals, and health and safety plans.
The scope of services is divided into two parts to be conducted in parallel and in an iterative and
interactive manner, namely: Part 2 – requirements for detailed design specifications to enable
equitable bidding, and Part 3 – requirements to comply with environmental impact assessment, public
participation and resettlement requirements.
Part 1 – Feasibility Study, Preliminary Design and Budgetary Cost Estimates
Task 1 – Feasibility Study. The Government plans to have an integrated solid waste transfer and
disposal system – one which optimizes waste minimization, reduction, recycling, and resource
recovery relative to costs and market demands and embraces sanitary landfill as the cornerstone
element of their disposal strategy. There has been feasibility study already conducted on various
disposal technologies. The existing feasibility study provides information on waste composition and
character. Based on this information, and any more recent information available at the time of this
study, conduct preliminary designs that are appropriate to the waste composition and character, and
estimate costs of the options studied, in order to finalize selection of the best option for the next 20
years.
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Part 2 -- Detailed Engineering Design Services
Task 1 – Waste Samples. The Government has compiled data and conducted field investigations on
the quantity, composition, moisture content and calorific value of the solid. To confirm, as needed,
the Government’s data, the concession/contract bidder shall be required to conduct whatever
sampling and testing may be needed to be confident of the character of solid waste. The Government
shall not be held responsible for the data defining the existing solid waste, or any projections to the
future. The concession/contract bidder shall be required to supplement field investigations already
conducted, as needed, to include but not be limited to the following.
 Collect samples for conduct analysis, as needed, to confirm the quantity and as-received
density of solid wastes for which the facilities will be designed, as well as the density after
natural consolidation, compaction, and/or biodegradation.
 Collect solid waste samples and conduct analysis to confirm waste composition, moisture
content, and calorific value.
 Conduct leachate generation tests and concentration studies, as needed, to confirm the
quantity and characteristic of leachate for which the sanitary landfill leachate treatment
facilities will be designed. Do not use data from existing open dumps for this study, as it
is not representative of leachate that would emanate from a sanitary landfill.
Task 2 -- Field Studies. The Government has compiled data and conducted field investigations for
sites that it will offer to the private sector for possible use under this concession/contract. At least
one transfer and one sanitary landfill site has been adequately studied to be considered viable for
public acceptance and environmental permit. The private sector is free to offer other sites, so long as
they meet comparable siting criteria and would be as environmentally and publicly acceptable. The
concession/contract shall be required to provide sufficient site information to confirm the
environmental and technical safety of its proposed sites. The concession/contract bidder shall be
required to supplement field investigations already conducted, as needed, to include but not be
limited to the following.
 Conduct investigations to locate sources of construction debris and soil cover materials to
provide sufficient and appropriate daily cover for at least 20 years of solid waste disposal
capacity.
 Conduct topographic survey, if not already done as part of previous field investigations, to
provide for full site mapping to meet the projected needs for at least 20 years of solid
waste quantities, with survey mapping drawn at a 1:1,000 scale or less and with 2-meter
contour intervals.
 Conduct test holes to assess the soil conditions, determine soil type by sieve screenings
and standard soil classification/characterization tests (i.e., sieve analysis, standard
penetration tests, atterberg limits, cation exchange capacity, and permeability), and assess
the seasonal high ground water levels from mottling, piezometric levels, and other signs of
high water table. Dig at least one test hole for every 3 hectares, unless already done in
previous field investigations.
 Conduct geophysical surveys to determine overall stratigraphy of soil and weathered rock
layers and determine the depth to bedrock, conduct at least one ground conductivity
survey by electromagnetic transverse lines across each site every 200 m, if not already
done as part of earlier field investigations. Perform vertical electrical soundings to
determine formation resistivities and thickness in greater detail at key anomalies identified
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by the electromagnetic surveys or at a minimum of three locations per site, if not already
done as part of earlier field investigations.
Conduct borings to the uppermost confined aquifer (or to within 30 m of the ground
surface, whichever is less) to assess soils, geologic and hydrogeologic conditions, take
peizometric water levels, take groundwater samples to test for basic parameters of
potability, and determine flow directions. There shall be at least one boring for every 10
hectares per available site, and no less than 2 boreholes for each available site, unless
already conducted by others.
Assess whether any deep aquifers that are used or potentially anticipated to be used for
water supply are protected by a confining layer of impermeable rock or soil. Outline all
catchment areas and surface waters on base maps of 1:1,00 scale and delineate
groundwater contours at 1-meter intervals.
Conduct biological field studies to assess whether there are significant species or habitat at
the site and identify agricultural activities. Delineate any on-site wetlands by soils and
plant species.
Gather information from available sources and interviews regarding the socio-economic
and cultural background of the resident population surrounding the site. Work with social
scientists engaged under separate terms of reference to understand the problems, needs,
and aspirations of the resident population.
Conduct traffic studies to determine the baseline use of the roads anticipated for use by
refuse collection trucks in traveling to and from proposed disposal and transfer sites, and
the "as constructed" adequacy of these roads, bridges and culverts to support the
additional size, weight and number of vehicles anticipated for the landfill.
Determine wind, rainfall, evaporation and other conditions that will affect the movement
of windblown litter, dust, odor, noise, stack gas emissions, and landfill gases.
Task 3 -- Process Design. Require each concession/contract bidder to develop each facility’s detailed
process design that shall meet all specified design and operating parameters to meet regulatory
requirements and address all potentially significant adverse environmental impacts as well as public
concerns identified through the public participation process. Develop the process design standards,
discharge limits, and performance measures for processes, to include but not be limited to the
following:
 safe and efficient flow of truck traffic in and out of each facility and during unloading and
loading operations.
 safe and efficient unloading, loading, sorting, processing, spreading, grading, compacting,
and covering of solid waste.
 slope stability control, erosion control, flood control, groundwater cutoff, surface water
diversion and wastewater control.
 collection and treatment of leachate, contaminated surface runoff, dusts, stack gases, and
pollution control residuals.
 collection of landfill gases (active systems only if gas utilization is cost-effective),
venting, and either flaring (if required to mitigate environmental impacts) or (if economic)
utilization.
 incineration at temperatures over 800oF for over 2 seconds retention to meet European
Union 1989 air emission requirements of up to 30 percent of the incoming solid waste
considered most suitable for combustion, such as paper, textile, cardboard, wood, rubber,
and plastic waste.
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composting by simple, open air and limited mechanization windrow pile methods, of up to
25 percent of the incoming solid waste considered most suitable for production of high
quality compost, such as residential, yard/garden, sewage treatment sludge, and market
waste.
Require the concession/contract bidder to provide an operations and maintenance manual for all
processing activities.
Task 4 -- Site Development Works Design. The concession/contract bidder shall be required to
perform engineering and complete design of civil works at each site in accordance with the
Government’s building code requirements to include the following:
 site preparation (such as clearing, draining, filling, grading and consolidation, as needed)
 all-weather access road from the main highway to the reception area (including on-off
ramps and interchanges as needed)
 temporary on-site roads from the reception area to the working face or receiving area
 all-weather parking for all necessary on-site mobile equipment and personnel transport
and, at the transfer station sites, for all of the transfer truck fleet.
 gate control building (including works to house weighbridge equipment) for incoming and
outgoing collection and transfer vehicles.
 support building (including offices for supervisors and support staff, room for training and
meetings, canteen, worker accommodations for washing/changing/resting)
 erosion control, slope stabilization, flood control, surface water diversion and drainage,
ground water cutoff, etc.
 sanitary system
 water supply system
 fire protection system
 lining the landfill base with appropriate clay material and plastic geomembranes, as
needed to protect underground water resources from contamination (natural attenuation
and percolation systems are to be considered in areas where underground water resources
are not potable or usable for irrigation or livestock).
 collection system for leachate and contaminated surface runoff
 treatment and discharge (or recirculation) system for leachate, wash-water, and
contaminated surface runoff, as appropriate for site conditions.
 gas collection, including vent/flaring systems and/or gas utilization system.
 leachate, gas, air quality, and groundwater quality monitoring stations.
 composting system for only suitable organic wastes by simple open air windrow pile
methods.
 workshop for repair and maintenance of mobile equipment used at the facilities
 washing facilities for mobile equipment.
The concession/contract bidder shall be required to develop the designs and drawings so that the
source and method of obtaining and stockpiling daily, intermediate and final soil cover and for
constructing cells is clearly shown. Prepare cell construction sequencing plans. The final sequencing
plan for each phase of landfill shall show closure of that portion of the landfill and the final grade
after application at final soil cover.
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The concession/contract bidder shall be required to evaluate the effects of seismic events on the site
and subsurface geotechnical conditions, including determination of the recommended seismic design
acceleration, selection response spectrum appropriate to the site conditions, and determination of
liquefaction potential of subsurface soils. The concession/contract bidder shall determine the
appropriate slopes allowable for the solid waste cells to maintain slope stability under predictable
seismic events. The bidder shall be required to determine the needs for toe berms for stabilization
and other mitigative measures to ensure that the sanitary landfill will maintain structural integrity.
The concession/contract bidder shall be required to design all new structures to take into account the
earthquake motion in accordance with the most recent AASHTO Standard Specifications for seismic
design criteria, or comparable standards for the local Government.
As part of preparing its bid, the concession/contract bidder shall review and verify the condition,
structural adequacy, suitability, anticipated serviceability, and extent of needed repairs and
strengthening for any facilities at proposed sites and along main transportation routes to the sites,
including bridges, culverts, roads, waterworks, overhead power lines, etc.
Task 5 -- Electro-Mechanical Works Design. The concession/contract bidder shall perform
engineering and undertake design of the following electro-mechanical works, in accordance with
local and central Government building code requirements and the findings and mitigative measures
recommended by the environmental assessment and public participation studies:
 electrical power and distribution system
 traffic management controls
 weighing bridges
 communication system
 fire alarm/protection system
 gas collection and vent, flare, and/or utilization systems
 leachate pretreatment, transfer, or treatment equipment (such as aeration and chemical
feed equipment, as appropriate)
The concession/contract bidder shall be required to provide an operations and maintenance manual
for use of the electro-mechanical works.
Task 6 -- Architectural Design. The concession/contract bidder shall be required to design the
facilities to be functionally effective, enable economic operations, and require minimum
maintenance. Aesthetically, the designs shall be compatible and enhancing of local architectural
design and scale objectives in each site’s vicinity.
Task 7 -- Quantity and Cost Estimates. The concession/contract bidder shall prepare the bill of
quantities for all works and cost estimates of pay items for each component of the design. All
construction quantities and costs shall be estimated in detail. Each bidder’s anticipated methods of
payment per item (lump sum, unit cost) which would be most appropriate to enable and facilitate cost
and quality control shall be indicated. The bidders shall separately note taxes that are anticipated for
each pay item, such as value added taxes and customs duties.
Task 8 -- Specification for Mobile Equipment. The concession/contract bidder shall be required to
prepare a list of all mobile equipment required to operate the landfill, compost operation and transfer
facilities, including bulldozers, landfill compactors, front-end loaders, open tippers, rippers, conveyor
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sorting belts, windrow turners, trommel screens, tub grinders, vibrating screens, and transfer vehicles,
as appropriate. The concession/contract bidder shall provide technical specifications for each type
and size of equipment unit listed.
Task 9 -- Health and Safety Manual. The concession/contract bidder shall be required to prepare a
manual to guide all aspects of facility construction, operation, monitoring, and post closure activities,
with regard to health and safety, including measures to deal with hazardous (potentially toxic,
ignitable, explosive, gas-producing, reactive, infectious) wastes, fires, explosions, gas releases,
accidents, injuries. Communication, medical care, emergency response, and evacuation procedures
are to be outlined, as well as all other potentially useful procedures for ensuring the health and safety
of all workers, visitors, and surrounding residents at the site.
Task 10 -- Tender and Contract Documents. In accordance with local and financing agencies'
guidance and standard procedures, prepare all necessary advertisements, concession/contract bidding
documents, and evaluation criteria needed for international tendering, including but not limited to
 package of baseline information for each concession/contract bidder
 prequalification criteria
 advertisement for prequalification
 prequalification evaluation procedures
 advertisement for concession/contract tender
 instructions to concession/contract bidders
 complete set of final maps and materials on existing sites being offered for possible use by
the Government.
 Detailed technical specifications, including all design standards, operating norms, and
performance criteria which the concession/contract bid must meet to qualify
 structure and detailed requirements for proposed bills of quantities which the
concession/contract bid must meet to qualify
 conditions of contract which the concession/contract bid must meet to qualify
 form of concession/contract contract being offered
 bidding forms
 rules for bidding and contact with Government officials
Part 3 -- Environmental Review
Task 1 -- Field Studies. As needed, the concession/contract bidder shall be required to supplement
field investigations already conducted for purposes of environmental impact assessment, including:
 Conduct soils, geology, hydrogeology, and surface water field studies to assess whether
there is adequate stability and assimilative capacity to protect the long-term environmental
quality of all water resources in the vicinity and downgradient of proposed facility sites.
 Conduct atmospheric and meteorological studies to assess whether there is adequate
assimilative capacity to protect long term environmental quality of all air resources in the
vicinity and downwind of the proposed facility sites.
 Conduct biological field studies to assess whether there are significant species or habitat at
the site and identify agricultural activities. Delineate any on-site wetlands by soils and
plant species.
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Gather information from available sources and interviews regarding the socio-economic
and cultural background of the resident population surrounding the site. Work with social
scientists engaged under separate terms of reference to understand the problems, needs,
and aspirations of the resident population.
Conduct traffic studies to determine the baseline use of the roads anticipated for use by
refuse collection trucks in traveling to and from proposed facility sites, and the "as
constructed" adequacy of these roads, bridges and culverts to support the additional size,
weight and number of vehicles anticipated.
Determine wind, rainfall, evaporation and other conditions that will affect the movement
of windblown litter, dust, odor, noise, stack emissions, and landfill gases.
Task 2 -- Environmental Analysis. The concession/contract bidder shall be required to assess the
environmental issues of the proposed facilities, including the access road and its use, on the site and
surrounding environment. Include assessment of traffic, noise, dust, odor, leachate, wastewater
discharge, stack gases, landfill gas emissions, slope stability, land use, aesthetic, social, economic,
and other impacts. Include assessment of the creation of jobs or the payment of a host fee on the
economics of the area. Include historical and cultural impacts, as appropriate.
The environmental analysis shall be conducted in parallel with the preparation of the
concession/contract bid, including detailed engineering design, in an iterative and interactive manner
so that the design eventually incorporates mitigative measures and results in the most cost-effective
disposal and transfer facilities for local conditions.
The environmental impact assessment will be prepared following the local and financing agencies'
operational directives and regulatory requirements. The environmental impact assessment shall be
adequate to meet the review and public participation requirements of the environmental permit
process in the local Government.
The environmental impact assessment shall cover an area of a radius of 1,000 meters from the
boundary of each proposed facilities location for purposes of aesthetic, terrestrial, and atmospheric
pollution issues. The assessment shall cover the watershed and aquifer areas from any landfill to any
downgradient receiving waters (shallow and deep groundwaters, as well as fresh and/or saltwater
surface waters). Furthermore, the study shall include the receiving waters of the outfall from the
wastewater treatment plant in which leachate shall be treated. The study area will include the route
of direct waste haul and transfer from proposed facility sites (i.e., across existing or planned roads) as
well as the potential impact in neighboring communities, including farms.
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Task 3 -- Description of the Proposed Project. Within the environmental impact assessment, the
concession/contract bidder shall be required to fully describe the project, using information from any
studies on siting, site confirmation, preliminary design, and environmental audit conducted earlier.
The description shall include:
1. Infrastructure of service area for each proposed facility:
 briefly describe the service area (number of inhabitants, residential areas, land use,
including previous use over the last 20-50 years, industrial areas, transfer stations) for
each proposed facility;
 determine the distance and direct haul routes and transfer routes from various waste
centers to the proposed disposal and transfer facilities, including any new access roads
that may need to be built.
2. Surrounding environment of each proposed facility:
 determine and describe the demographic setting around the proposed facility sites;
 describe the surrounding topography and land use characteristics and proximity to
residential neighborhoods from the proposed facility sites, including past land use
patterns, whether agriculture, forestry, in the case of a military site specifically how sit
was used over past 50 years and impact of that use;
 determine and describe the overall direction of groundwater flow, drinking water recharge
areas downstream of the location, and receiving waters into which groundwater and
leachate treatment plant discharge;
 meteorological data regarding wind directions, precipitation and net infiltration.
3. Facts about the facility development:
 layouts, cross-sections, and construction details for each facility, including all receiving
facilities, landfill cell construction details, leachate and landfill gas collection and
management facilities, sorting stations, roofed areas, buildings, gate houses, weighbridges,
mitigative measures, monitoring systems, and final closure plans;
 construction and operation schedules, including scheduling of site preparation, cell
construction, and interim road development of each phase of landfill development.
 a description of the responsible parties, including organization structure and staffing for
each proposed facility development;
 confirmation and consultation program with affected peoples in area of each proposed
facility;
 operational plans for waste types and quantities which might be allowed to be received;
including special handling requirements for yard wastes, bulky wastes (tires, appliances,
mattresses, etc.), construction/demolition debris, dewatered wastewater treatment plant
sludges, batteries, and selected medical wastes;
 operation plans for handling of waste types and quantities which are not expected to be
allowed to be received; including hazardous industrial wastes, untreated septic tank or
cesspit contents, and surgical wastes;
 health and safety plans;
 final closure procedures; and
 monitoring plans (short-term and long-term).
Task 2 -- Description of the Environment. Within the environmental impact assessment, the
concession/contract bidder shall be required to describe the environment through assembly,
generation, evaluation and presentation of baseline data on the following:
1. Physical environment:
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nature of surrounding environment (including homes, farms, forest areas, industry, small
business enterprises and other establishments) and proximity to these;
 description of the existing topography and the proposed and areas which will be affected
by any aesthetic impact;
 traffic conditions along the major haul routes between the waste centers and the proposed
landfill at present and after implementation of the proposed facilities. The existing traffic
conditions must be based on field survey; and proposed traffic patters should be examine
as well;
 determination of the geology of the area through a geological description of borings, soils
samples, and geophysical surveys, as well as review of available literature and existing
well logs on record for the region;
 determination of all groundwater recharge areas and use of groundwater downgradient
from the landfill;
 condition and present and planned use of the receiving water and standards for discharge
to the receiving water;
 determination of meteorological data (net infiltration, temperature variations and
prevailing wind directions).
2. Biological environment:
 survey all major terrestrial flora and fauna on the landfill site;
 collect any information on sensitive habitats in the area and any rare, endangered or
commercially important species;
 identify any nearby protected areas;
 delineate on-site wetlands by soils and plants.
3. Socio-cultural environment:
 identify any populations which may need to be resettled or compensated for losses in
order to enable facility development, including the use and compensation value of the
properties which they own or inhabit; describe the sensitivity and difficulties of
resettlement;
 describe any waste picking communities which may have livelihood disruption from
closure of existing disposal sites due to implementation of the new disposal facilities;
describe the needs and difficulties of developing alternative livelihood;
 describe past and present use of the location and surrounding land and any historical,
religious or cultural significance of the area;
 determine the demographic character of the surrounding neighborhoods and the sensitivity
of the public to the proposed facilities, including perception to increased traffic, noise,
dust, odor, and aesthetic appearance;
 other planned development activities on the location and in the nearby surroundings.
Task 3 -- Legislative and Regulatory Considerations. Within the environmental impact assessment,
the concession/contract bidder shall be required to describe the national and local legislation and
guidelines on disposal of waste and the authorities responsible for monitoring of construction and the
environment are to be noted. Any standards to be met for discharge from leachate treatment plants
must be included. Outline the steps for obtaining all necessary environmental permits. Discuss the
need for any legislation to be prepared in order to ensure that the proposed environmental standards
will be fulfilled.
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Discuss needs for education, inspection and enforcement to comply with existing and proposed
legislation and any other requirements needed to ensure fulfillment of the proposed environment
monitoring at national and local level.
Task 4 -- Determination of Potential Impacts of the Proposed Project. Within the environmental
impact assessment, the concession/contract bidder shall be required to identify and describe all
potential major environmental impacts from development of the proposed facilities that will be
significant over the long-term. Describe as a minimum the environmental consequences from:
 leachate emanating to surroundings through leakage in the proposed liner system;
including estimates of quantity and quality of a potential leachate leakage and the
consequences to groundwater and receiving surface water;
 impact to neighborhoods along direct haul routes from increased traffic (primarily noise,
dust, litter, odor, and vibrations), and including economic development due to
improvements in roadways and trade from refuse haulage personnel;
 estimate impacts to surrounding neighborhoods near the proposed facilities from noise,
odor, gaseous emissions, dust, air-borne pathogenic micro-organisms, and wind blown
litter potentially related to facility construction and operation;
 creation of direct and secondary jobs related to facility development;
 closure of the existing open dump disposal site.
Task 5 -- Analysis of Alternatives to the Proposed Project. Within the environmental impact
assessment, the concession/contract bidder shall be required to describe alternatives that were
examined in the course of screening sites and conducting preliminary design and assessment of the
proposed facilities. Describe alternative designs for construction and operation which were
examined, including liner solutions (no liner, clay liner, synthetic liner and composite liner systems);
alternative gas venting, flaring and utilization systems; operation alternatives (cell development vs.
open face development, optimizing of methanogenisis vs. no special operation techniques); leachate
treatment methods (recycling vs. non-recycling and treatment in an existing municipal waste water
treatment plant vs. on-site treatment); and alternative haul routes. Include the "no action" alternative
to the proposed facilities not being constructed, but continuing with the existing disposal site as it is
currently being operated. Discuss potential for waste minimization.
Compare the alternatives in terms of potential environmental impact (which are irreversible,
unavoidable and which can be mitigated); capital and operation costs; sustainability under local
conditions; and institutional, training and monitoring requirements. To the extent possible, quantify
costs and benefits of each alternative.
Task 6 -- Development of Management Plan to Mitigate Negative Impacts. Within the environmental
impact assessment, the concession/contract bidder shall be required to recommend feasible and costeffective measures to prevent or reduce significant negative impacts to acceptable levels. Indicate the
impacts and costs of those measures, and of the institutional and training requirements to implement
them. Consider compensation to affected parties for impacts which cannot be mitigated (e.g., rehousing of residents within a distance of approximately 250 meters from the proximity of the
proposed facilities), or replacement of important habitat, flora or fauna in another comparable
location which could be reserved for nature.
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Prepare management plan (including budget estimate, staffing requirements and other necessary
support) to implement the mitigating measures.
Task 7 -- Development of Monitoring Plans. Within the environmental impact assessment, the
concession/contract bidder shall be required to describe a proposed monitoring plan. The monitoring
plan shall include but not be limited to the following:
 leachate quality and quantity before and after treatment;
 groundwater quality and level upgradient and downgradient from the facilities;
 landfill gas quality on-site and off-site;
 water quality upgradient and downgradient from the discharge point from the leachate
treatment plant;
 stack gas emissions;
 odors;
 noise levels;
 traffic counts;
 fly and other vector counts;
 compost parasitic counts and metals levels;
 change in vegetation, including die-off;
 facility structural integrity and maintenance; and
 number and resolution of complaints.
The monitoring plan shall make every effort to outline monitoring procedures and indicator
parameters which are uncomplicated and inexpensive to conduct and easy to evaluate.
Task 9 -- Assist in Inter-Agency Coordination and Public Participation. Prepare together with the
Government’s Ministry or Agency involved with environmental a meeting to which all relevant
ministries and departments are invited. Coordinate with social scientists that are hired under separate
terms of reference to conduct local consultation and develop resettlement and compensation action
plans. At this public participation meeting, present the project, the environmental issues related to
the project and the responsibility, involvement and commitments of the relevant ministries and
departments.
Prepare also, together with the above mentioned agency for environmental protection and local
government offices and separately hired social scientists, a public hearing to which all affected
parties, relevant non government organizations and citizens groups are invited. In the public hearing,
present the project and all environmental issues related to the project. Keep records of these meetings
and address concerns as part of the mitigative measures in final design activities conducted under Part
1 of the scope of services within these terms of reference.
Deliverables
The Consultant shall provide the following deliverables:
 Interim Report describing local standards for design and siting, including regulatory information
for the local Government, and examining international standards for design.
 Draft report describing recommended siting and performance criteria, design standards and
operating norms for the proposed concession/contract.
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Final report describing recommended siting and performance criteria, design standards and
operating norms for the proposed concession/contract; also including draft concession/contracttendering document, including all necessary draft procurement package materials.
Final concession/contract-tendering document, including all necessary final procurement package
materials.
Schedule
The Consultant shall provide monthly progress reports summarizing efforts underway to address the
above scope of work, outlining problems and constraints encountered, and presenting issues for client
decision-making, as needed.
Using new information on waste composition and character, the Consultants shall update feasibility
studies conducted earlier by others and provide more information on the relative merits of various
techniques. Furthermore, based on the waste, the Consultants shall conduct preliminary design and
costing. Five copies of the initial draft report providing feasibility study, preliminary design, and costing
shall be submitted 4 months after the notice to proceed with the above scope of work. Following review
and comment by Government, five copies of the final report shall be submitted 6 months after the notice
to proceed with the above scope of work.
Five copies of the initial draft report covering all siting and performance criteria, design standards and
operating norms described above shall be submitted 8 months after the notice to proceed with the above
scope of work. Five copies of the final draft report responding to comments shall be submitted 10
months after the notice to proceed with the above scope of work, assuming the client shall provide
comments within 4 weeks after receiving the initial draft report. At the same time, five copies of the
draft concession/contract-tendering document shall be provided, including all draft procurement package
materials. Five copies of the final concession/contract tendering document, including all procurement
package materials to be bid-ready, shall be submitted 12 months after the notice to proceed.
Team
The team shall include at least one at least one solid waste management specialist with over 15 years of
related technical and economic analysis experience, including significant experience in developing
countries; one mechanical engineer, one electrical engineer, one ventilation engineer, and one chemical
engineer, each with over 10 years of related technical design experience; one wastewater treatment
specialist and one air pollution control specialist, each with over 10 years of related technical design
experience; and one contract attorney with legal experience in developing concession/contract
documents for privatization of solid waste disposal/transfer/treatment facilities.
The project manager shall have worked in the region and shall be able to speak and read at least one
of the local official languages, as well as English.
Solid Waste Management Project