Job Description

Invitation to Tender

 Public Tender: Borehole drilling and construction, solar water supply systems and rehabilitation of hand-dug wells

Our Reference no: SPR #: 66222323

Project Code: FFZ

Date: 4th November 2026

Submission email: 

info@mopada-sl.org OR mopadasl2006@gmail.com

Dear Sir / Madam,

The Movement Towards Peace and Development Agency Sierra Leone (MoPADA-SL) is a national non-governmental organization committed to promoting peace, community empowerment and sustainable socio-economic development in Sierra Leone. Its interventions include nutrition, health, water, sanitation and hygiene (WASH), food security, sustainable livelihoods and climate adaptation.

MoPADA-SL, in partnership with Action Against Hunger (ACF) and with funding from the Embassy of Ireland through Irish Aid, is implementing the Nutrition-Sensitive Climate Change Adaptation and Mitigation Program (NuCAMPS) in Sierra Leone. The NuCAMPS Project aims to improve food security and nutrition for vulnerable populations in Bonthe, Falaba, and Moyamba districts of Sierra Leone, particularly women and children. 

As part of its WASH component, the project is supporting interventions to enhance access to safe water, improve sanitation coverage, and promote hygiene behavior change at community and health facility levels in selected chiefdoms. For this, MoPADA-SL intends to undertake borehole drilling and construction, installation of solar-powered water supply systems, and rehabilitation of hand-dug wells in Bonthe and Falaba Districts. These works are intended to improve access to reliable water supplies and support the project’s water, sanitation, hygiene and community resilience objectives.

MoPADA-SL therefore invites qualified and experienced contractors to submit tenders for the specified works in accordance with the tender requirements, technical specifications and applicable procurement procedures. The procurement aims to promote transparency, fair competition, value for money and the delivery of quality works within the approved budget and contractual timeframe.

Principal/Contracting Party:

MoPADA SL -Nucamps Project,

No. 10 Brima Lane Kenedy Section Bo

Participation:

The tender is open to interested eligible Construction Companies or group of engineers that are legally registered in Sierra Leone.

1. NOTICE AND GENERAL CONDITIONS

NOTICE INVITING BID

DATE: 4th November 2026

Tender reference No: SPR #: 6622232

Tender Name: Borehole drilling and construction, solar water supply systems and rehabilitation of hand-dug wells

1.1 The above construction project is implemented by MoPADA SL – NuCAMPS Project. The project aims to increase access to portable water supply for uptake of good health practices and contribute to good health outcomes in target PHUs and communities.

1.2. MoPADA SL invites companies or groups of engineers to submit bid/quotation for the construction of water storage tower tank, Drilling, Development of Borehole and Installation Of (Solar Pump and Solar Panel) and Rehabilitation of Hand Dug Wells. Prices quoted should be gross inclusive of all taxes, must be in LEONES and shall remain valid for (90) days minimum from the closing date of tender.

• This tender is published on 4th November 2026 starting at 12:00 hours online. 

• completed tender document should be share on this email: info@mopada-sl.org OR mopadasl2006@gmail.com not later than 4th December 2026. No hard copy will be accepted.

• Throughout these bidding documents, the terms “bid” and “tender” and their derivatives “bidder”, “tenderer”, “bidding”, “tendering”, etc. are synonymous.

MoPADA SL is also referred to as Principal. Embassy of Ireland also referred to as Donor. Day means calendar day. 

Important Dates:

1.6 LANGUAGE, SYSTEM OF UNITS AND CURRENCY OF THE BIDS

The bids prepared by the bidders and all documents related to the bid must be written in English.

The measurement units used in these bid documents are the International SI units: meter (m), cubic meter (m3), kilogram (kg), liter (l) etc. These units must be used in the bid and during the execution of the contract.

The tenders shall be priced in Leones (SLL) and the tender sum shall be in Leones only.

Addresses of MoPADA SL:

• 10 Brima Lane Kenedy Section Bo, SierraLeone.

GENERAL REMARKS AND SPECIAL CONDITIONS

• The specification and quality must be in line with the technical specification stated in the BOQ of this bidding document.
• All construction must be in line with MoPADA standards and meet both local and international standards.
• Bids will be evaluated in a transparent manner and information shared.
• MoPADA SL holds the right to make slight changes to the technical details and scope of work provided.
• Bidders can bid for one or all lots. Price per lot must be quoted separately. Each lot will be evaluated separately. One or all lots will be award to successful bidder.
• In case an alternative to the technical specification is provided, this will be clearly documented and discussed with the selected bidder.
• Prices quoted in this tender are fixed and cannot be changed over the contract period and are guaranteed by the contractor.
• All item rates should be inclusive of labor, transportation, profit, taxes and any small accessories needed to complete the full construction.
• Bid prices are subject to negotiation.
• The bidder must provide copy of Certificate of Completion for previous work done.

1. INSTRUCTIONS TO BIDDERS

SCOPE OF THE WORK

Borehole drilling and construction, solar water supply systems and rehabilitation of hand-dug wells

Locations: Falaba and Bonthe Districts

General requirements

Execute the works allocated to each lot under its BOQ, technical drawings and TS1–TS6 below. Price the issued BOQ units and total quantities once, including labour, materials, plant, transport, temporary works, testing and handover. Do not multiply total quantities by the number of sites.

Retain the specified equipment, material grades and workmanship; lower-quality substitutions are not permitted. Tower foundations, dimensions, members, concrete, reinforcement, cover, access and metalwork shall comply with the corresponding BOQ descriptions and technical drawings.

The Contractor and Project Engineer shall jointly verify site conditions and resolve BOQ/design differences during implementation. Record instructions before affected work and administer changes under the contract. Provide a programme, competent staff, safe methods, temporary works and protection of existing services; manage spoil/waste and reinstate disturbed areas.

Lot 1 Hand dug wells in Bonthe

Five wells at Molanga, Nyandehun Belle, Semabu, Segbewama and Mataka, Imperi Chiefdom. Rehabilitate the wells and associated works to the site BOQs, TS1 and TS6.

Lot 2 Hand dug wells in Bonthe

Five wells at Futaa, Gondama, Motifoo, Kono and Getemaku, Ngorbabu Bullom. Rehabilitate the wells and associated works to the site BOQs, TS1 and TS6.

Lot 3 Hand dug wells in Falaba

Five wells at Jedia, Malaga, Tinkifira, Nafagie and Komaya. Rehabilitate the wells and associated works to the site BOQs, TS1 and TS6.

Lot 4 Hand dug wells in Falaba

Five wells at Gbenikoro, Tumania, Samesadu, Farama and Dolla. Rehabilitate the wells and associated works to the site BOQs, TS1 and TS6.

Measurement for Lots 1 to 4

Re-deepening depths, pump repairs or replacements, risers, civil repairs and quantities shall follow each site BOQ. Measure actual authorised additional depth for payment under the applicable BOQ item.

Lots 5 to 7B Towers distribution boreholes and solar pumping

Lot 5 Towers storage and distribution in Falaba

Two installations: Serekolia, Morifindugu Chiefdom; and Sokuralla, Kamadugu Yieraya. Construct BOQ/drawing-defined reinforced-concrete towers, foundations, control rooms and access; install two 5,000-litre tanks per installation, associated valves/plumbing, distribution mains, chambers, tap stands, troughs, handwashing facilities, drainage and soakaways. Apply TS2, TS3 and TS6. Coordinate with Lot 7B.

Lot 6 Towers storage and distribution in Bonthe

Two installations: MoKepay, Imperi Chiefdom; and Sembehun. Construct BOQ/drawing-defined reinforced-concrete towers, foundations, control rooms and access; install two 5,000-litre tanks per installation, associated valves/plumbing, distribution mains, chambers, tap stands, troughs, handwashing facilities, drainage and soakaways. Apply TS2, TS3 and TS6. Coordinate with Lot 7A.

Lot 7A Boreholes and solar pumping in Bonthe

Two boreholes and solar pumping installations at MoKepay, Imperi Chiefdom, and Sembehun. Complete siting, drilling, casing/screens, gravel packing, sanitary sealing, development, pumping/water-quality tests, disinfection and headworks. Install rising mains, pumps, solar modules, controls, cables, earthing and lightning protection. Apply TS4–TS6; coordinate with Lot 6.

Lot 7B Boreholes and solar pumping in Falaba

Two boreholes and solar pumping installations at Serekolia, Morifindugu Chiefdom, and Sokuralla, Kamadugu Yieraya. Complete siting, drilling, casing/screens, gravel packing, sanitary sealing, development, pumping/water-quality tests, disinfection and headworks. Install rising mains, pumps, solar modules, controls, cables, earthing and lightning protection. Apply TS4–TS6; coordinate with Lot 5.

Interfaces and commissioning

Follow the BOQ allocation for solar supports, anchors, fixings, connections and tank-level controls; price and measure each item once. Coordinate tower/borehole interfaces and demonstrate complete operation from source to tanks and all assigned outlets. Use BOQ total quantities for networks and water points.

• SPR 662222 – Construction, Rehabilitation and installation:

The detailed Bill of Quantities and scope of work is outlined in Section attached Bill of Quantities. The bid should be 100% costed (inclusive of materials, labor, transportation, taxes etc.)

Successful bidder will be responsible for the procurement, delivery and management of imported and order local materials quoted for in the BoQ for the construction work.

• BID DOCUMENTS

The bid documents is attached to ITT.

• PREPARATION OF THE BID

Bidder can express interest for one lot or all lots, one or all lots can be awarded to successful bidder.

The bidder is expected to examine the instructions, terms, conditions, forms, specifications, and other information in the bid documents and conduct a site visit, take pictures and attached to filled and signed site visit form, scan, and upload to BE part of the documentation. Failure to furnish all information required by the bid documents may result in exclusion from the evaluation process.

By signing the bid documents, the bidder acknowledges the validity of his/her bid and that he/she is bound to complete the work in all respects within time schedule given by the principal once the Contract is signed.

• DOCUMENTS TO BE PROVIDED WITH THE BIDS

Interested bidders must be registered with the Ministry of Works and Assets Management (MOWAM) and must provide copy of an up-to-date valid certificate grade 1, 2 or 3 issued by the MOWAM. The interested bidder is expected to register with the District Council for the district of application and certificate must be attached.

The bid documents include prescribed forms that must be filled, signed, and dated by the bidder. Bids must be submitted as per this section “Instructions to Bidders.”

1. Copy of valid certificate from Ministry of Works and Assets Management
2. Copy of valid certificate of registration with District Council
3. Form of Bid; signed, stamped and dated (included);
4. Declaration form; signed, stamped and dated (included);
5. Company profile; (Optional)
6. Bill of Quantities with prices quoted, signed, stamped and dated by the bidder (included);
7. MoPADA SL supplier Declaration forms (signed, stamped and dated by the bidder (included)
8. Copy of valid Business registration
9. Copy of GST registration certificate
10. Copy of valid tax clearance certificate 2026
11. List of information regarding the bidder and his employees (form included);
12. Letter of confirmation to pre-finance the work per milestone.
13. Details of similar constructions executed in last three years along with information and contact details (name, address, phone number and email address) of the donors/organizations who financed/commissioned the work and work certificate.
    
14. A detailed work plan with regards to the timeframe indicated by the principal.
15. List of equipment (in working conditions) relevant to the work owned/hired by the bidder (form included);
16. Form of acknowledgment of the sites visits, signed/tomb print by community stakeholders contact or MoPADA representative

4.0 COMPLETING BILLS OF QUANTITIES

1. Note that the Bill of Quantities in this tender is 100% cost of executing the work and includes all taxes.
2. The bidder must indicate all prices including taxes, material costs, labour cost, transportation of materials to the site, transportation of staff and equipment, cost of bank guarantee, profit and any small accessories needed in the Bills of Quantities.
3. While filling in the rates in the Bills of Quantities (BOQ), bidder must consider the Scope of Work, Technical Specifications and the technical drawings included in the bid documents.
4. Bidders must fill and submit the prices of each indicated item in figures and must indicate the total cost in figures and in words. All payments shall be made per measured work.
5. While indicating the total cost, bidder must ensure that there is no discrepancy in the cost mentioned in figures and words. In case of any discrepancy, the cost mentioned in words must be taken as final and binding.
6. If a bidder does not quote a price for any indicated item in the BoQ, his/her bid will be automatically excluded.
7. The currency used in these bid documents is the Sierra Leone Leones (SLL) (all taxes included) and must be used in the bid and during the execution of the contract.

• EXAMINATION OF THE CONSTRUCTION SITES

1. The tenderer must visit and examine the Construction Sites and its surroundings and obtain for himself on his own responsibility, all information that may be necessary for preparing the tender and entering into a contract. In particular, the bidder must examine and acknowledge the road conditions, climate conditions, rainfall and their effects on construction sites and their accessibility and hence on the work plan. The costs of visiting the Site shall be the tenderer’s own responsibility.
2. The tenderer and any of his personnel or agents will be granted permission by the Principal to enter upon premises and lands for the purpose of such inspection, but only upon the express condition that the tenderer, his personnel or agents, will release and identify the Principal from and against all liability in respect of, and will be responsible for personal injury (whether fatal or otherwise), loss of or damage to property and any other loss, damage, costs and expenses however caused, which but for the exercise of such permission, would not have arisen.
3. Tenderers must provide their own transport for site visits.
4. Tenderers can visit the sites at their own discretion but are advised to inform the principal prior to the visit. MoPADA SL representative may not be available for site inspection visits but will provide contact information for the bidders accordingly.
5. Each tenderer shall complete the Certificate of Tenderer’s Visit to the Site with pictures attached.
   

• OPENING OF THE BIDS

Submitted document will be downloaded by MoPADA SL for bid opening/evaluation session. Successful and non-successful bidders will be informed in writing after the bid opening process. Bid opening shall be online/ in person on the selected date on this bid document.

• VALIDITY OF THE BIDS

1. The tender shall remain valid and open for acceptance for a period of ninety (90) days from the specified date of tender opening or from the extended date of tender opening whichever is the later.
2. In exceptional circumstances prior to expiry of the original tender validity period, the principal may request the tenderers for a specified extension of the period of validity. The request and the responses thereto shall be made in writing. 

• EXAMINATION, EVALUATION AND COMPARISON OF THE BIDS

The examination, evaluation and comparison of the bids will be made by a committee composed of representative(s) from the principal and will not take into consideration any presentation of gift given by bidder to the members of the Committee. All committee members will sign MoPADA SL Declaration of Impartiality and confidentiality form. Bidders may  participate in the tender opening as observers.

The Committee will examine the bids to determine whether they are complete and then will proceed to the evaluations and analysis of the bid documents. Such analysis will allow the Committee to determine which bids have technical and financial value.

Determination of Responsiveness

1. Prior to the detailed evaluation of tenders, the principal will determine whether each tender is substantially responsive to the requirements of the tender documents.
2. For the purpose of this clause, a substantially responsive tender is one which conforms to all the terms, conditions and specifications of the tender documents without material deviation or reservation. A material deviation or reservation is one which affects in any substantial way the scope, quality, completion timing or administration of the Works to be undertaken by the tenderer under the Contract, or which limits in any substantial way, inconsistent with the tender documents, the Principal’s rights or the tenderers obligations under the Contract and the rectification of which would affect unfairly the competitive position of other tenderers who have presented substantially responsive tenders.
3. Each price or unit rate inserted in the Bills of Quantities shall be a realistic estimate of the cost of completing the works described under the particular item including allowance for overheads, profits and the like. Should a tender be seriously unbalanced in relation to the principal’s estimate of the works to be performed under any item or groups of items, the tender shall be deemed not responsive.
4. A tender determined to be not substantially responsive will be rejected by the principal and may not subsequently be made responsive by the tenderer by correction of the non-conforming deviation or reservation.
   

• Process to be Confidential

1. 1. After the opening of tenders, information relating to the examination, clarification, evaluation and comparisons of tenders and recommendations concerning the award of Contract shall not be disclosed to tenderers or other persons not officially concerned with such process until the award of Contract is announced.
   2. Any effort by a tenderer to influence the principal in the process of examination, evaluation and comparison of tenders and decisions concerning award of Contract may result in the rejection of the tenderer’s bid.

MoPADA SL will then proceed to identify the successful candidate with a separate financial bid evaluation. The final selection will be made by the Evaluation Committee with the approval of the Executive Director.

• Selection Criteria

MoPADA SL will prioritize the quotations as follows:

Tenderers not providing the requested quotation included of materials, transportations and labour prices duly signed and stamped with the other documentation as listed in the article “4. Submission Tenders & Documents” as requested will be by automatism excluded from this competition.

The following ranking criteria’s will be considered for the contract granting:

• Technical Evaluation: 60%:

This precedes the financial evaluation. Bidders are to obtain a minimum of 55% of the 60% before they can be considered for financial evaluation.

Technical evaluation indicators: Technical capacity, Experience in similar work, cost and complexity of past projects, proposed workplan, availability of construction equipment, qualified staff and cross reference checks.

• Financial Evaluation criteria (Price Points): 40 %

1. Bill of quantity pricing point:

Best offered price amongst all considered offers

BOQPP (pricing points) = X 10

The offered price of the evaluated offer.

The assigned points per listed criteria will be calculated in reference to the obtained proportion from the best offers criteria’s results in comparison to the offered value per criteria multiplied by 10 in order to obtain a grading scale per criteria in between 1 to 10 points per ranking criteria. Where the need arise, potential bidders may be invited for negotiations.

The highest obtained scoring per evaluated offer is supposed to win the competition!

• CLARIFICATION OF THE BIDS

The Committee may at its discretion ask the bidders for any clarifications and or further information as considered essential. The bidder must provide the Committee with such information in writing within reasonable time. The above clarification will form part of the bid and will be binding on bidder.

• RIGHT TO ACCEPT OR REJECT THE BIDS

The principal reserves the right to accept, negotiate, cancel, or reject any bid or to annul and reject all bids at any time prior to the award of the Contract without incurring any liability.

Once the Principal has completed the evaluations of the bids, the most reasonable price, quality, experienced, reliable, and qualified bid which achieves the best overall value for money combination for the principal will be chosen.

• AWARD OF CONTRACT

Award Criteria:

1. The principal will award the Contract to the tenderer whose tender is determined to be substantially responsive to the tender documents.
2. The principal reserves the right to accept or reject any tender, and to annul the tendering process and reject all tenders, at any time prior to award of Contract, without thereby incurring any liability to the affected tenderers or any obligation to inform the affected tenderers of the grounds for the principal’s action.

Notification of Award:

1. Prior to the expiration of the period of tender validity prescribed by the Principal, the Principal will notify the successful tenderer in writing that his tender has been accepted. This letter (hereinafter and in all Contract, documents called “Letter of Acceptance”) shall name the sum (hereinafter and in all Contract, documents called “the Contract Price”) which the principal will pay to the Contractor in consideration of the execution and completion of the Works as prescribed by the Contract.
2. While the Principal notifies the successful tenderer that his tender has been accepted, the principal shall notify the other tenderers that the tender has been unsuccessful within 7 days.
3. Within fourteen [14] days of receipt of the Form of Contract Agreement from the Principal, the successful tenderer shall sign a Letter of Acceptance as a token of his acceptance, which will constitute a legal and binding Contract between the Principal and the Contractor until the Contract is signed and return it to the principal together with the required Performance Security.
4. The parties to the contract shall have it signed within 30 days from the date of notification of contract award unless there is an administrative review request.
5. All communication is to be done by email.

Corrupt or fraudulent practices:

1. The procuring entity requires that tenderers observe the highest standard of ethics during the procurement process and execution of contracts. A tenderer shall sign a declaration that he has not and will not be involved in corrupt or fraudulent practices.
   
2. The procuring entity requires that tenderer sign the MoPADA SL Supplier Declaration form.

1. FORM OF DECLARATION

To:   MoPADA SL Head Office

10 Brima Lane Kennedy section Bo Sierra Leone

           Dear Sir/Madam,

I hereby declare that:

1. There is no claim against my name, or the name of my company filed with the National Clerk of the Court of Sierra Leone.
2. My company is not bankrupt.

1. None of my staff has been condemned or sentenced by any court of Sierra Leone and that they have no sanctions pending under penal, civil and tax law of Sierra Leone.

1. My company has obtained all insurance requested by the law and paid the insurances premium (copy of last premium paid included);

1. My company has paid all contributions of the past year to the National Revenue Authority (copy of official receipt included);

1. My company is registered with the Ministry of Works (Copy of certificate grade 1 or 2 or 3).

I hereby certify that all the information given above are true and I understand and acknowledge the fact that my Company is liable to be disqualified at any time during tendering process in case any of the information furnished by myself is not found to be true.

Yours Faithfully,

Signature:

Name: (In capital letters)

Position:

Name of the Company:

Place Date

1. FORM OF INFORMATION OF THE BIDDER AND HIS EMPLOYEES

   1. Name of the Company:

1. Name of Representative:

1. Address:

1. Telephone number:

1. Name, title and contact information of the person(s) authorized to sign documents, receipts and waybills at the construction site:

1. Total number of staff that will be employed in the work:

Of which:

1. Skilled staff:

1. Unskilled staff:

MoPADA SL is entitled to request the Curriculum Vitae of core staff to verify their credentials.

1. Name of the Bank, Bank’s details and bank account details to which all amounts payable to the Contractor will be directly credited:

Contractor:

Signature:

Name: (In capital letters)

Place Date

15. LIST OF CORE STAFF AND THEIR CVs

This list comprises the core staff of the contractor to be allocated to the work site. Note that the list must be filled out for each lot.

• – TECHNICAL SPECIFICATIONS

  • INTRODUCTION

Technical Specifications

Apply these requirements to the works included in each lot BOQ and drawings. Retain the specified quality and equipment requirements.

TS1 Hand dug well rehabilitation

Survey and re-deepening: record existing depth, water level, lining and pump/civil condition. Agree methods, well-entry protection and rescue arrangements before work. Dewater, remove defective components, clean and re-deepen as instructed; record actual authorised additional depth. Retain serviceable components.

Civil works: construct/repair scheduled caissons, lining, headwalls, cover slabs, drains and soakaways, with specified reinforcement and formwork. Confirm dimensions and support details jointly with the Engineer before construction. Provide 225 mm fence blockwork, maximum 1.5 m high, where specified; repair or replace fences as scheduled.

Pumps and finishes: install complete Mark II handpumps where scheduled; otherwise repair cylinders, seals, bearings, chains, rods and risers as required. Replace iron risers with specified pump-compatible PVC/uPVC at identified sites. Provide scheduled 400 × 400 mm lockable metal covers, 900 × 1,300 mm steel gates, anti-theft devices, chains, locks and keys. Apply specified plaster, 50 mm screed and paint where scheduled.

Completion: clean, disinfect by the approved chlorine method, flush and sample for water-quality/pH analysis. Demonstrate pump operation, drainage and secure covers/fencing; obtain acceptance before reopening.

TS2 Tower construction control rooms and storage

Structure: construct foundations, reinforced-concrete frame, beams and elevated slabs strictly to the corresponding BOQ descriptions and technical drawings. Follow their dimensions, levels, concrete grades, reinforcement, cover and loading details. Obtain foundation and pre-pour inspections; compact, cure and finish concrete. Do not load the platform before the Engineer releases it.

Building/access: complete the scheduled control room, blockwork, floor build-up, screed, render, door/locks, ladder, guardrails and solar-support metalwork. Follow BOQ/drawing member sizes, welds, anchors and coatings; verify interfaces before fabrication.

Storage: install two 5,000-litre potable-water tanks per installation with anchorage, maintenance access, inlet/outlet, overflow, washout, valves and float controls. Provide scheduled 50 mm inlet/outlet connections and 1-inch washout. Discharge clear of foundations; clean, disinfect and leak-test.

TS3 Pipe networks and water use facilities

Pipework: set out issued routes; excavate soil/rock trenches, provide specified 100 mm sand bedding, lay/joint pipes, inspect before covering, compact backfill and reinstate. Install scheduled 50 mm HDPE PN10 distribution mains, 19 mm branches/outlets, DN50/19 mm gate valves, fittings and supports. Measure separately from the PN16 borehole rising main.

Structures: construct scheduled reinforced-concrete valve chambers, secure covers and road crossings. Use 450 × 450 × 450 mm chambers only where specified. Retain operation/maintenance access; pressure-test, flush and disinfect pipe sections.

Outlets: construct scheduled tap stands, basins, bases, pillars, blockwork, sloping screeds, render and paint; fit specified standpipes and brass/lockable taps. Provide drainage channels and stone-filled soakaways without ponding. Take stand, tap and group quantities directly from the BOQ.

Troughs/handwashing: construct BOQ-defined troughs and plumbing; confirm cover/dimensional details before fabrication. Where included, install two ceramic handwashing basins per health facility, one in the labour ward and one at the entrance, with supports, supply, traps and waste connections. Coordinate service interruptions.

TS4 Borehole siting drilling completion and testing

Siting/drilling: undertake geophysical/hydrogeological assessment and obtain siting approval before drilling. Measure actual drilling within BOQ bands 0–25, 25–50, 50–75, 75–100 and 100–120 m without overlap. The Engineer shall determine final depth/completion from geology and test results. Log strata, water strikes, depths and levels; manage temporary casing.

Completion: obtain approval of screen intervals and completion details; install specified 150 mm internal-diameter uPVC casing/screens, centralisers, bottom cap, gravel pack and cement-grout sanitary seal. Develop/clean and record method, duration and discharge condition. Provide scheduled lockable cap, identification and protective wellhead slab.

Tests/disinfection: conduct the specified 16-hour constant-discharge test under an approved protocol; record discharge, drawdown and recovery. Obtain acceptance before pump procurement. Analyse physical, chemical and bacteriological parameters. Use an approved chlorine method defining concentration, dose, contact time, flushing and sampling; retest and obtain written water-quality acceptance before use.

Headworks/records: install specified 2-inch HDPE PN16 rising main, 2-inch gate valve, non-return valve and pressure gauge; provide the 1-inch unioned observation opening and 3/4-inch HDPE observation pipe. Confirm pump setting/lengths from accepted results. Safely close failed/abandoned holes as instructed. Submit three hard copies and one electronic copy of each drilling/test report.

TS5 Solar pumping and electrical installation

Equipment: retain the specified Grundfos/SQFlex-type package, nominal duty 3 m³/hour at 90–100 m head, CU 200 control box, and six 450 W, 46 V monocrystalline modules per installation, subject to the issued BOQ/equipment specification. Submit pump curve, duty/total dynamic head, setting depth, expected delivery and electrical compatibility against accepted borehole tests before procurement. Changes require written contract instruction.

Installation: provide the scheduled pump, controller, compatible inverter where specified, electrodes, float switch, power/control cables and accessories. Submit cable sizing, string arrangement, module/controller compatibility, frame loading, tilt and orientation. Install supports, welds, anchors, fixings, corrosion protection, cable protection/labels, earthing and lightning protection to issued drawings and approved details.

Commissioning: competent personnel shall record electrical/earthing tests, settings and serial numbers. Demonstrate startup, pumping, tank filling, level-controlled stop/restart and pump protection. Record flow/head; test the complete source-storage-outlet system against specified acceptance criteria and test durations. Rectify defects and repeat failed tests.

TS6 Quality control acceptance and handover

Before work: submit programme, deployment plan, site-verification record, construction/drilling/well-entry and temporary-works methods, material/equipment data, quality plan, safety/environmental arrangements and required coordination drawings. Confirm applicable standards and acceptance limits from the issued specifications; record technical instructions.

Inspection: obtain required releases for siting, completion design, founding levels, reinforcement/formwork/cover and concealed pipes. Maintain concrete delivery/mix/test and curing records; inspect dimensions, levels, anchors, welds and coatings. Record pressure/leakage tests, tank anchorage/controls, electrical tests and commissioning.

Acceptance: submit identifiable laboratory/sample records against the specified physical, chemical and bacteriological limits. Demonstrate handpump operation, delivery to all scheduled outlets, drainage and secure access. Do not open facilities for drinking-water use before the Engineer accepts water-quality results and operational checks.

Records: maintain measurements, logs, photographs, inspections, test results, programme updates and authorised changes; submit progress reports at the contract frequency. At completion provide as-built locations/levels/routes, borehole/pump details, equipment/serial data, wiring diagrams, test/commissioning reports, warranties, manuals, keys, asset register and training/handover records.

Handover: train operators in pump/solar controls, isolation, routine checks, cleaning, drainage, fault reporting and safe access. Supply scheduled spares only. Reinstate the sites, close defects, repeat failed checks and complete joint final inspection and signed acceptance records required for final payment. Remedy defects under the contract.

1. FORM OF BID

To: MoPADA SL Head Office

No.10 Brima Lane Kennedy section Bo Sierra Leone.

Dear Sir/Madam,

I (Name of the bidder) have read the terms and conditions of the bid documents and agree to abide by the requirements specified for the Rehabilitation, Construction and installation work. 

I also agree to keep this bid open for acceptance for a period of 90 days minimum from the date of bid opening.

.

I hereby declare that we have visited the site of the work and have become aware of the field conditions, road and potential constraints. I also am aware of the seasonal weather conditions and the effect on the different construction sites such as the quantity of rainfall and the quantity of water in the waterway crossings.

. I have quoted our rates by considering all the above factors and I offer to do the work. I bind myself to complete the work in all respects within the maximum time schedule indicated.

I understand that until a Contract is signed, a Letter of Acceptance along with all bid documents will constitute a binding Contract between me and MoPADA SL.

I also understand that a sum equivalent to 20% of the total amount of the Contract will be forwarded by me as a Bank Guarantee in the form of money order from any Bank in Sierra Leone in Favour of MoPADA SL or as issued by a recognized Insurance Company after the award of contract. Such Bank Guarantee will be forfeited if I break the Contract or fail to perform or observe any conditions of the Contract.

Thanking you. Yours Faithfully,

Signature:

Name: (In capital letters)

Place Date

20 . DETAILS OF EQUIPMENT THAT WILL BE USED AT CONSTRUCTION

SITE (Hired 0r Owned)

21 . CERTIFICATE OF TENDERER’S VISIT TO SITE

This is to certify that

[Name/s

Being the authorized representative/Agent of [Name of Tenderer]

Has done an inspection visit of the site of the work in Bonthe/Falaba Districts

Village, Chiefdom,

District.

On the day of 2026

Signed

(Principal’s Representative or Community’s Representative mentioned in the table above) (Indicate name and designation)

(Tenderers Representative)

Refer to attached Annex:

1. 1. Bill of Quantity (BOQ) LOT1
   2. Bill of Quantity (BOQ) LOT2
   3. Bill of Quantity (BOQ) LOT3
   4. Bill of Quantity (BOQ) LOT4
   5. Bill of Quantity (BOQ) LOT5
   6. Bill of Quantity (BOQ) LOT6
   7. Bill of Quantity (BOQ) LOT7A &B
   8. MoPADA SL Supplier Declaration Form
   9. Technical Drawing

• INSTRUCTION:

Please download the additional documents (BOQ, technical drawings, and supplier declaration form) from the link below, complete and sign where necessary, and submit them along with your bid to the email address stated in the tender notice.

https://drive.google.com/drive/folders/1si15jMcQfA_k_oJavYpJWlZ6QMrcMKNf?usp=sharing