Water Treatment Works Upgrade and Reservoir Construction 2026
Tender Details
- Project Title: Koffiefontein Water Treatment Works Upgrade and Reservoir Construction
- Tender Number: LETS/WATERTREATMENT/2025-26
- Employer: Letsemeng Local Municipality
- Tender Type: Open Tender / Infrastructure Construction Project
- Project Location: Koffiefontein
- Sector: Water Supply and Treatment Infrastructure
Briefing Session
Date: 28 May 2026
Time: 10:00
- Closing Date: 19 June 2026 at 12:00
- CIDB Requirement; 6CEPE / 7CE or Higher
- Functionality Threshold: Bidders must achieve a minimum functionality score of 60% to be considered responsive.
Tender Overview
Letsemeng Local Municipality is seeking to appoint an experienced contractor to undertake the upgrading of the existing 8 ML (Mega Litre) Water Treatment Works in Koffiefontein and the construction of a new 4.5 ML reservoir.
The project forms part of the municipality’s water infrastructure improvement programme aimed at increasing treatment capacity, improving water quality, enhancing system reliability, and ensuring sustainable water supply to residents and businesses within the municipal area.
This is a major civil engineering and water infrastructure project requiring expertise in water treatment facilities, reservoirs, pipelines, mechanical installations, and electrical systems.
Tender Objectives
The project aims to:
- Upgrade the existing 8 ML water treatment plant.
- Increase operational efficiency of the treatment facility.
- Improve water quality and treatment performance.
- Construct a new 4.5 ML storage reservoir.
- Enhance water storage capacity and supply reliability.
- Improve long-term sustainability of municipal water services.
- Support future population and economic growth demands.
- Reduce operational interruptions and infrastructure failures.
Scope of Work
1. Water Treatment Works Upgrade
The contractor will be required to:
- Upgrade existing treatment infrastructure.
- Refurbish aging treatment components.
- Improve treatment processes and operational systems.
- Upgrade water intake and distribution components where required.
- Improve plant efficiency and reliability.
- Install or replace process equipment.
Possible Treatment Components
- Clarifiers and settling tanks.
- Filtration systems.
- Chemical dosing systems.
- Pump stations.
- Valve chambers.
- Pipework and fittings.
- Monitoring and control systems.
2. Construction of a New 4.5 ML Reservoir
Works may include:
- Site establishment and preparation.
- Earthworks and excavation.
- Foundation construction.
- Reinforced concrete works.
- Reservoir wall and roof construction.
- Waterproofing and protective coatings.
- Pipe connections and valve installations.
- Overflow and drainage systems.
- Access ladders and safety installations.
- Testing and commissioning.
3. Civil Engineering Works
The project may include:
- Bulk earthworks.
- Excavation and backfilling.
- Concrete structures.
- Access roads and paving.
- Stormwater management systems.
- Retaining structures.
- Site drainage works.
4. Mechanical Works
Mechanical installations may include:
- Water pumps.
- Pipework systems.
- Isolation and control valves.
- Flow measurement equipment.
- Mechanical treatment equipment.
- Reservoir inlet and outlet systems.
5. Electrical and Control Systems
Electrical works may include:
- Electrical reticulation.
- Motor control centres.
- Power supply installations.
- Instrumentation systems.
- SCADA and automation systems.
- Lighting and security systems.
- Electrical testing and commissioning.
Key Responsibilities
The successful contractor will:
- Supply all labour, plant, materials, and equipment.
- Manage construction and engineering activities.
- Ensure compliance with municipal specifications.
- Coordinate civil, mechanical, and electrical works.
- Maintain quality assurance procedures.
- Implement occupational health and safety measures.
- Conduct testing and commissioning.
- Deliver the project within approved timelines and budgets.
Technical Requirements
Tenderers must:
- Possess a valid CIDB 6CEPE or 7CE (or higher) grading.
- Demonstrate experience in water treatment infrastructure projects.
- Have proven reservoir construction experience.
- Meet the minimum 60% functionality score.
- Comply with all engineering, environmental, and municipal standards.
- Adhere to the municipality’s Supply Chain Management Policy and Preferential Procurement Regulations 2022.
Skills and Experience Required
Civil Engineering Expertise
- Water-retaining structures.
- Reinforced concrete construction.
- Reservoir construction.
- Earthworks and excavation.
- Structural construction.
Water Treatment Experience
- Treatment plant upgrades.
- Water process engineering.
- Filtration systems.
- Chemical dosing systems.
- Water quality management.
Mechanical Engineering Skills
- Pump installation and maintenance.
- Pipeline systems.
- Valve installations.
- Mechanical process equipment.
Electrical Engineering Skills
- Industrial electrical installations.
- Instrumentation and control systems.
- Automation and SCADA systems.
- Electrical testing and commissioning.
Project Management Skills
- Contract administration.
- Construction planning.
- Resource management.
- Cost control.
- Quality assurance.
- Risk management.
Typical Personnel Required
Management Team
- Project Manager
- Resident Engineer
- Construction Manager
- Contracts Manager
Engineering Personnel
- Civil Engineer
- Mechanical Engineer
- Electrical Engineer
- Site Engineer
Technical Staff
- Foremen
- Surveyors
- Quality Control Officers
- Safety Officers
Skilled Trades
- Concrete Specialists
- Steel Fixers
- Pipe Layers
- Electricians
- Welders
- Mechanical Fitters
- Plant Operators
Support Staff
- General Labourers
- Drivers
- Store Controllers
Suitable Businesses
This project is suitable for:
- Civil engineering contractors.
- Water infrastructure construction companies.
- Reservoir construction specialists.
- Water treatment plant contractors.
- Multi-disciplinary engineering firms.
- Joint ventures involving civil, mechanical, and electrical contractors.
- CIDB 6CEPE and 7CE contractors with municipal infrastructure experience.