Project details


Project title

Greater Colombo Water and Wastewater Management Improvement Investment Program (Tranche 3) - NCB/34 Individual National Consultant for Environment Specialist for Pre-Feasibility Study (Phase 1) of Proposed Lower Pali Aru Reservoir

Country Programme / Action Plan
Tender / Procurement notice
6 May 2019
16 May 2019


16 May 2019


21 May 2019


1 672 USD

Procurement type

Individual consultants


45148-008 Package NCB/34 Individual National Consultant for Environment Specialist for Pre-Feasibility Study (Phase 1) of Proposed Lower Pali Aru Reservoir

Funding Agency

ADB - Asian Development Bank

Estimated duration

1 month


Sri Lanka

Deadline of Submitting EOI: 21-May-2019 11:59 PM Manila local time

Consultant Type Individual
Selection Method Individual Consultants Selection (ICS)
Source National
Technical Proposal Not Applicable

Selection Title Greater Colombo Water and Wastewater Management Improvement Investment Program (Tranche 3)

Package Number NCB/34
Package Name Individual National Consultant for Environment Specialist for Pre-Feasibility Study (Phase 1) of Proposed Lower Pali Aru Reservoir

Advance Action No

Engagement Period 1 MONTH

Consulting Services Budget USD 1,678

Budget Type Maximum

Approval Number 3348
Approval Date 08-Dec-2015
Estimated Short-listing Date 30-May-2019
Estimated Commencement Date 10-Jun-2019

Open to non-Member Countries No

Additional Information
Possibility of contract extension No

Possibility of consideration for downstream assignment Not known

Indefinite Delivery Contract (IDC) No

Country of assignment Sri Lanka

Country of eligibility for national consultants Same as country of assignment

Contact Information
National Water Supply and Drainage Board


Primary Agency Country Agency Role Contact Person View Details
Ministry of Internal & Home Affairs and Provincial Councils & Local Government (formerly Ministry of Provincial Councils, Local Government & Sports) Sri Lanka Executing Agency
Colombo Municipal Council Sri Lanka Implementing Agency

Ministry of City Planning and Water Supply (formerly Ministry of Water Supply and Drainage) Sri Lanka Executing Agency

Ministry of Provincial Councils & Local Gov't Sri Lanka Executing Agency

National Water Supply and Drainage Board Sri Lanka Implementing Agency

Cost Estimate

Cost Items Amount in USD

Remuneration and Other Expenses
All activities and inputs in the TOR but not limited to remuneration, per diem, air travel, miscellaneous travel expenses, report preparation, production, and transmission, land transportation, communications, etc. 1,672


Terms of Reference

Expertise Environment Science

Expertise Group Engineering
TOR Keywords Lower Pali Aru, NWSDB, Jaffna Peninsula, Environmental Study

Source National

Objective and Purpose of the Assignment The National Water Supply and Drainage Board intends to call financial proposals (remuneration and per
diem) from the individual consultants to provide expert services to carry out pre-feasibility studies
for the construction of lower Pali Aru Reservoir.
The study of lower Pali aru reservoir is proposed to carry out in two phases as follows;
Phase 1: Pre-Feasibility Study
In the Phase 1, the Pre-Feasibility study is proposed to carry out by individual consultants. This study
is to carry out a detailed hydrological study and geotechnical study in order to identify a location to
construct a reservoir across lower Pali aru and assessing the capacity of reservoir with a conceptual
design of dam and spill way structure and recommendation for further studies.

Phase 2: Feasibility Study
In the Phase 2, the detailed study shall be carried out based on outcome of Phase 1 pre-feasibility
study and submit the necessary documents to construct a reservoir and water treatment plant. This study
shall be carried out in detail with respect to technical, environmental and social aspects and produce
the feasibility report, detail design reports, working drawings and bid document.

This Terms of Reference (TOR) below outline the scope of the work, responsibilities of individual
consultants to carry out the Pre-Feasibility Study to achieve the tasks and to produce the deliverable
such as the pre-feasibility report with conceptual design, tentative cost estimate within the stipulated
period of five months.
In this Phase 1 – Pre Feasibility Study four individual consultants are proposed to involve to develop
the Pre-Feasibility Study Report. One of the individual consultant with the capacity of Water Resources
Engineering shall act as Team Leader and the team shall comprise of Hydrologist, Geo technical Engineer
and Environmental Specialist. Further above mentioned expert team shall assist with Engineering
Assistant, GIS specialist, CAD person and Secretary.
The detailed scope of the study, output of the work and facilities to be provided by the Client are
described in sections below. The detailed scope of the study and output of the work of other experts are
described in Annex 1.

Objectives of the Consultancy Service under Phase 1

The objectives of the Consultancy Service in respect of this pre-feasibility study is to formulate a
composite project proposal to optimize the water resource under lower Pali aru river basin by
constructing a reservoir to meet the demand taking into consideration of technical, social and
environmental aspects with necessary documents required for next phase of detailed study.
Accordingly, it is proposed to engage the service of individual consultant for a pre-feasibility study
of proposed Pali aru reservoir.

Please follow the below link to download the EOI, TOR and annexes

Scope of Work Scope of the Consultancy Service
I. Review the relevant previous studies / reports
II. Carry out hydrological and hydraulic studies and determine the parameters of the reservoir and
III. Undertake the topographical survey for dam axis with cross section and Longitudinal section
including the site survey of the proposed spill way
IV. Undertake geotechnical studies
V. Carryout borrow area investigations
VI. Prepare the pre-feasibility stage design and conceptual drawings
VII. Compute tentative cost estimate
VIII. Carry out economic analysis
IX. Undertake social assessment with resettlement and land acquisition requirement
X. Carry out environmental assessment and prepare Basic Information Questionnaire (BIQ) for the
Environmental Impact Assessment (EIA) study

Detailed Tasks and/or Expected Output The tasks of Environmental Specialist include, but not limited to;
I. Prepare BIQ for project interventions to get TOR for EIA study from the CEA
II. Undertake environmental assessment survey for project interventions
III. Identifying social impacts

Minimum Qualification Requirements Minimum Qualification Requirements
Minimum General Experience : 15 Years
Minimum Project Related Experience (relevant to assignment) : 05 Years
Minimum National Government Organizations’ Experience : 03 Years
The individual consultant should preferably be a Qualified Graduate in Environmental Science/Science
having a strong background in the following subjects: Environmental Study for reservoir construction /
water resource development with having strong analytical mind set.

Minimum General Experience 15

Minimum Specific Experience (relevant to assignment) 5

Regional/Country Experience Not Required

Schedule and Places of Assignment (chronological and inclusive of travel)

Schedule Type Continuous

Max. Working Days/Week Home Office 5
Field 6

City and Country Working Days Estimated Start Date Estimated End Date Other Details (use if place selected is Others)
Jaffna, Sri Lanka 22 10-Jun-2019 09-Jul-2019


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