REQUEST FOR EXPRESSIONS OF INTEREST(REOI)
(CONSULTING SERVICES)
UNITED REPUBLIC OF TANZANIA
SUSTAINABLE RURAL WATER SUPPLY AND SANITATION PROGRAM (SRWSSP) PHASE II
Assignment Title: Consultancy Service for conducting of A baseline survey on sanitation (Waste Water Access) and Development of Feacal Sludge & Waste Water Management Strategy, Detailed Design and Tender Documents in Zanzibar.
Reference No: TZ-MOWEM-550992-CS-QCBS.
The Revolutionary Government of Zanzibar (RGoZ), through The United Republic of Tanzania, intends to implement the Sustainable Rural Water Supply and Sanitation Program (SRWSSP) Phase ii with financing obtained from the World Bank. RGZ intends to apply part of the funding for the consulting services for conducting of A baseline survey on sanitation (Waste Water Access) and Development of Feacal Sludge & Waste Water Management Strategy, Detailed Design and Tender Documents in Zanzibar.
Objective (s) of the assignment
The objective of this assignment is to provide technical support to the Ministry of Water, Energy and Minerals, to undertake a baseline survey, development of Faecal Sludge Management (FSM) and wastewater strategy, and detailed designs, and tender documents for priority infrastructures in Zanzibar. The consultancy will build on the findings of the BEST-Z Conceptual Design Report and masterplan to detailed engineering design and procurement-readiness, ensuring continuity with existing technical decisions on technology selection, site identification, and infrastructure sizing. The Conceptual Design Report will be provided to the selected firm upon contract signing.
Scope of the consulting services and specific tasks
The scope of the assignment entails:
- Carrying out Inception Activities.
- Confirmation of Project Feasibility.
- Organization of two Stakeholders Workshops.
- Carrying out field surveys.
- Carrying out Detailed Engineering Designs; and
- Preparation of Tender Documents.
The Specific Tasks are described below:
Carrying out Inception activities: The project inception activities are intended to familiarize the Consultant with the prevailing situation and baseline regarding the project. The consultant is expected to review available documentation and undertake an initial visit to the project area before preparing a detailed Inception Report. The Inception Report shall be informed by the following activities and shall contain a detailed methodology for carrying out the assignment and the work plan for implementation of the consultancy services. The Inception Report shall also contain a detailed Stakeholder Engagement Plan as guided by the Project’s Stakeholder Engagement Framework (SEF).
Confirmation of project feasibility: For both Unguja and Pemba Islands, conduct confirmatory feasibility studies and preliminary designs for the proposed infrastructure investments, including screening for potential environment and social impacts, involuntary resettlement, and impacts on vulnerable and marginalized groups ( indigenous persons) as per the screening checklists and guidance provided in the project’s Environmental and Social Management Framework (ESMF), Resettlement Policy Framework (RPF), and Vulnerable and Marginalized Groups Framework (VMGF), preliminary cost estimates, and economic analysis of proposed investments. Carry out socio-economic surveys of the project area to establish economic and social characteristics of the residents.
Organization of Stakeholders Workshop: The two workshops, one for Unguja Island and the other for Pemba Island will be organized to present to the stakeholders the proposed investments. The Consultants and the stakeholders to agree on the prioritized works for immediate implementation based on available budget. It is expected that the Consultant will organize and pay for all logistics of the workshop of keys stakeholders under this assignment. Approximately 40 people are expected to attend each workshop.
Carrying out field survey:
The Consultant shall undertake the following surveys and investigations:
- Set out ground controls and tie them to the national grid.
- Carry out profile surveys for all proposed sewers, including interceptors, trunk sewers, and laterals.
- Conduct detailed topographical surveys of the proposed WWTP, DEWATS, and FSTP sites.
- Perform core drilling and excavation of test pits as appropriate, followed by laboratory testing of soil and rock samples in an approved laboratory and analysis of the results.
- Determine soil bearing capacities at relevant locations.
Carrying out Detailed Engineering Designs: Develop Design Standards and Criteria. Undertake Detailed Engineering Design of prioritized works. Design and cost estimation of O&M System. Conducting ESIA (including ESMP), RAP including Asset Register and Valuation Report of the prioritized works. Development of regulatory, legal and institutional framework.
Preparation of Tender Documents: Preparation of final procurement documents for the designed infrastructure incorporating at minimum appropriate qualification requirements {technical and financial qualifications, personnel, financial resources, and equipment}, bills of quantities/scope of works, specification, environmental and social requirements, drawings, conditions of contract (FIDIC Red Book for Design-Bid-Build Contract and Gold Book for DBOT) and draft construction works programme. The Tender Documents to Comprise of Lot 1 (Works in Unguja Island and Lot 2 (Works in Pemba Island). The procurement documents need to include construction stage elements of the ESMP, specifying works to be carried out by the contractor. Guidelines to include ESMPs in procurement and contract documents as provided in the ESMF. Preparation of the ESMP and RAP cost estimates.
The assignment will be undertaken over a period of approximately 12 calendar months from the date of contract effectiveness.
The Ministry of Water, Energy and Minerals now invites eligible consulting firm to indicate their interest in providing the above services. Interested consulting firm should provide information demonstrating that they have the required qualifications and relevant experience to perform the services. The consulting firm (or consortium of firms) should have at least the following qualifications and experience:
Core Business and year is Business
- The Consultant shall be registered/incorporated as a consulting firm with the with core business in the field of water supply and sanitation systems covering feasibility studies, designs, environmental and social impact assessments (ESIAs), resettlement action plans and (RAP) for a period of a minimum of then (10) years.
Relevant similar experience, which should specifically include the below:
- The Consultant shall demonstrate as having successfully executed and completed at least 3 assignments of similar nature, complexity and in a similar operating environment in the last 5 years. Details of similar assignments-Name and address of the client, scope, value, and period should be provided and submitted Expression of Interest should include enumeration of these similar past assignments.
- iii. The Consultant shall demonstrate as having the requisite technical capacity and managerial capacity to undertake the assignment in the submitted company profile(s). (Provide only the structure of the organization, general qualifications and number of key staffs. Do not provide CV of the staff. Experts will not be evaluated at the shortlisting stage.)”
The attention of interested consulting firms is drawn to Section III, paragraphs 3.14, 3.16, and 3.17 of the World Bank’s “Procurement Regulations for IPF Borrowers”, Seventh Edition, September 2025, setting forth the World Bank’s policy on conflict of interest. Consulting firms intending to submit an Expression of Interest shall not have any conflict of interest or unfair competitive advantage and must comply with the provisions of the World Bank’s Procurement Regulations.
Consultants may associate with other firms in the form of a joint venture or a sub-consultancy to enhance their qualifications. For firms participating in JV, each member of JV should independently meet the requirement of EoI criteria. For firm participating as association of lead and subconsultant, only the experience and qualification of lead firm will be assessed as per EoI criteria
A Consulting firm will be selected in accordance with the Quality and Cost Based Selection method set out in the Procurement Regulations.
The detailed Terms of Reference (TOR) for the assignment can be found at the following website: https://majismz.go.tz/publications or upon asking though email procurement@majismz.go.tz copy to hidayat.vuai@majismz.go.tz
Further information can be obtained at the address below during office hours, 07:00 to 03.30pm East African Time.
Expressions of interest must be delivered in a written form to the address below in person (hard copy along with an USB drive), or e-mail by 10.00am EAT on July 1, 2026.
Ministry of Water Energy and Minerals
ZURA building 5th floor,
Procurement Unit, Room No. 502.
P.O. Box 1569 Zanzibar
Maisara, Zanzibar
E-mail: procurement@majismz.go.tz and copy to hidayat.vuai@majismz.go.tz
