Expression of interest (EOI): Local contractor – ICHACHI Safe Water Supply Project

Organization: Water Mission
Project location: Chamwino District, Dodoma Region, Tanzania
Submission deadline: Sunday, 6 September 2026 at 17:30 EAT

English version

1. Introduction

Water Mission (WM) is a Christian engineering non-governmental and non-profit organization that provides safe and clean water and sanitation services to communities in need, refugee camps and disaster-affected areas.

In Tanzania, Water Mission is registered under number I-NGO/00006524 and has operated since 2013. The organization has implemented water projects in the country for more than ten years, particularly in the Dodoma Region, including Bahi and Chamwino districts, and in the Kigoma Region.

In Dodoma, Water Mission has collaborated with the Government through the Ministry of Water and the Rural Water Supply and Sanitation Agency (RUWASA) to implement rural water-supply projects in Bahi and Chamwino districts.

2. Purpose of the expression of interest

Water Mission invites expressions of interest from qualified and legally registered local contractors or fundis capable of undertaking construction and installation works for the ICHACHI Solar-Powered Borehole Water Supply System in Chamwino District, Dodoma Region.

This EOI is intended to identify competent contractors who may be considered during the subsequent quotation and procurement process.

3. Project background

The Chanhumba, Chibwe Chini, Igandu and Chimwaga (ICHACHI) water-supply system will serve:

• Chanhumba Village
• Igandu Village
• Chimwaga Village
• Chibwe Chini Sub-village, located within Chibwe Village

The project is located approximately 60 kilometres from Dodoma City.

The project will provide water-supply infrastructure to the communities of Chanhumba, Chibwe Chini, Igandu and Chimwaga. The works include demolishing existing structures and constructing new borehole chambers at the water-source and storage-site facilities, water points, valve chambers, pipelines and associated civil works.

The selected contractor will work under Water Mission’s supervision and in accordance with approved drawings, technical specifications and construction-quality requirements. Water Mission will provide all construction materials.

4. Main scope of work

The assignment will include:

• Mobilization and demobilization of personnel, equipment and tools.
• Site clearance, setting out, construction and installation activities in accordance with the approved drawings and the Engineer’s instructions.
• Rehabilitation of the existing pump house.
• Rehabilitation of the existing treatment house and installation of a new Erosion Chlorinator.
• Fabrication and installation of a steel cabinet, including the installation of an Erosion Chlorinator for water treatment.
• Demolition of the existing borehole chamber and construction of a new borehole chamber.
• Removal of the existing solar racks and construction of three new solar racks.
• Installation of 45 solar panels and a tap for washing the solar panels.
• Rehabilitation of the existing 100 m³ tank and security fence at Chanhumba in accordance with the approved drawings and the Engineer’s instructions.
• Construction of an 80 m³ masonry tank on the ground and installation of the specified tank fittings, including a sampling tap and a new security fence.
• Construction of valve chambers.
• Distribution of pipes from the main community storage site to the respective pipeline networks, including unrolling and laying 30.42 kilometres of pipeline in prepared trenches.
• Fusion of pipes, installation of fittings and repair of leakages.
• Construction of 29 public water points and installation of 29 prepaid meters.
• Construction and installation of pipeline marker posts at intervals of approximately 100 metres, labelled as instructed.
• Transportation of materials from the on-site storage house or houses to the respective construction sites.
• System testing, inspection, commissioning and handover in coordination with Water Mission, RUWASA, the Community-Based Water Supply Organisation (CBWSO) and community authorities.

5. Mandatory eligibility requirements

Interested contractors must provide or demonstrate:

• A certified and relevant business licence for civil works.
• A certified Tax Identification Number (TIN) and compliance with the relevant civil and fiscal authorities.
• A certified VAT registration certificate.
• A certified company registration certificate or certificate of incorporation.
• A registration certificate from the Contractors Registration Board under the relevant local category.
• A certified, current and valid tax-clearance certificate for 2026.
• A business or company profile.
• Evidence of sufficient financial capacity to complete the works successfully.
• A stamped bank statement covering the most recent 12-month period, with June 2026 as the latest month.
• Demonstrated experience in similar water, civil works, pipeline or related infrastructure projects.
• The ability to provide a full-time Site Supervisor who is an Engineer or Technician with a Full Technician Certificate (FTC).
• A Site Supervisor with at least five years of relevant experience in works of a similar size and complexity, preferably solar-powered water-supply projects.
• Suitably qualified personnel, tools, equipment and other resources required to complete the works within the prescribed implementation period.
• Commitment to comply with Water Mission’s drawings, technical specifications, quality-assurance and quality-control measures, and site-safety requirements.
• Readiness to comply with Water Mission’s Protection from Sexual Exploitation and Abuse (PSEA) Policy and Conflict of Interest Policy.
• Disclosure of any actual, potential or perceived conflict of interest involving Water Mission staff.

Water Mission Tanzania reserves the right to verify the authenticity of all submitted documents at any stage of the procurement process.

6. Information to be submitted with the EOI

Applicants must submit:

• A signed and stamped expression of interest or cover letter.
• A business or company profile that includes:
  • Physical address
  • Telephone number
  • Email address
  • Authorized contact person
• A copy of a valid business or construction licence.
• A TIN certificate and relevant tax-compliance evidence.
• A VAT registration certificate.
• A company registration certificate, certificate of incorporation or BRELA certificate.
• A CRB registration certificate for Civil Works or both Civil and Building Works.
• A valid tax-clearance certificate.
• Evidence of previous experience in similar assignments.
• Details of at least three successfully completed similar construction or service contracts, including:
  • Client’s name
  • Client’s contact details
  • Project location
  • Scope of work
  • Year of completion
• CVs and qualifications of the proposed key personnel.
• A valid and current Power of Attorney.
• A summary of the annual value of construction works completed during the last three years.
• A list of available construction equipment, tools and other resources relevant to the assignment.

7. Technical capacity

The contractor must demonstrate practical capacity to manage and undertake:

• Civil construction works
• Reinforced concrete works
• Masonry works
• Steel fabrication and welding
• Fencing works
• Water-point construction
• Pipeline installation and fusion
• System testing
• Inspection and commissioning

The proposed team must be available at the project site and work closely with Water Mission personnel during setting out and construction.

8. Implementation and supervision

Water Mission personnel will be present in the field to supervise and oversee implementation.

The contractor will be responsible for executing the works in accordance with approved drawings and technical specifications and for maintaining the required quality-assurance and quality-control standards.

9. Contractor declaration

The contractor must confirm the following:

We hereby express our interest in participating as a local contractor for the ICHACHI Water Supply Project. We confirm that the information provided in this EOI and the supporting documents is accurate to the best of our knowledge. We understand that submission of this EOI does not constitute an award of contract and that Water Mission may evaluate submissions based on qualifications, relevant experience, technical capacity and other applicable procurement criteria.

10. Contractor information

Applicants should provide:

• Name of contractor or company
• Business or company registration number
• Valid licence number and class
• TIN
• Physical address
• Authorized contact person
• Telephone number and email address
• Number of years of relevant experience

11. Key personnel

Applicants should provide the name, qualifications and years of experience for each of the following:

• Site Supervisor – Engineer or Technician with an FTC
• Technician or fundi for masonry works
• Technician or fundi for welding works
• Technician or fundi for plumbing works

12. Relevant experience

For each relevant project, applicants should provide:

• Project or client name
• Location
• Scope of work
• Year of completion
• Client’s contact details

13. Submission checklist

Before submitting, contractors should confirm that their application contains:

• A signed and stamped expression of interest or cover letter.
• A business or company profile containing the physical address, telephone number, email address and authorized contact person.
• A copy of a valid business or construction licence.
• A TIN certificate and relevant evidence of tax compliance.
• A VAT registration certificate.
• A company registration certificate, certificate of incorporation or BRELA certificate.
• A CRB registration certificate for Civil Works or both Civil and Building Works.
• A valid tax-clearance certificate.
• Evidence of at least three successfully completed similar construction or service contracts, including the client’s name, contact details, location, scope and completion year.
• CVs and qualifications of the proposed key personnel.
• A valid and current Power of Attorney.
• A summary of the annual value of construction works completed during the last three years.
• A list of available construction equipment, tools and other resources relevant to the assignment.

14. Mode of submission and deadline

Interested contractors should submit their signed and stamped EOI documents, together with all required supporting documents, through one of the following methods:

Hard-copy submission

Submit the documents in a sealed envelope to:

Water Mission Tanzania
P.O. Box 102
Block A, Kisasa North
Ndugai Street
Dodoma, Tanzania

Email submission

Send an email to:

Email: [email protected]
Telephone: +255 762 757 458

Applicants submitting by email should reply with the words “AM INTERESTED” and will then receive a link through which they can provide their detailed information.

All submissions must clearly indicate the project name:

ICHACHI Safe Water Supply Project

The submission deadline is Sunday, 6 September 2026 at 17:30 EAT. Late submissions will not be considered.

Water Mission reserves the right to accept or reject any submission in accordance with its procurement procedures.

Reference basis: Water Mission Request for Quotation – ICHACHI Safe Water Supply Project, Chamwino District, Dodoma Region.

RFQ/Tender Information and Attachments

For comprehensive information regarding this RFQ/tender, we invite you to download the attachments provided below. These documents contain all the necessary details, including specifications, requirements, and submission guidelines. Please review them carefully to ensure you have all the pertinent information needed to participate.

DOWNLOAD THE FULL TENDER NOTICE HERE

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