Johannesburg Water Tender: Cleaning PSTs & Pump Station Sumps at Northern WWTP (9 Months)

tender is for the appointment of service provider(s) for cleaning Primary Settling Tanks (PSTs) and pump station sumps at Northern Wastewater Treatment Works (WWTW) for a period of nine (09) months. The scope of work includes: mechanical and/or manual removal of accumulated sludge, grit, sand, rags, and debris; dewatering of tanks and sumps with compliant return flow management; material handling and disposal off-site at approved facilities in compliance with National Environmental Management: Waste Act (NEM:WA); high-pressure cleaning and flushing of surfaces; cleaning of inlet and outlet channels; provision of all necessary plant, equipment, tools, labour, and supervision; and implementation of comprehensive safety, environmental, and operational controls in line with OHSA and Johannesburg Water's procedures. The contractor must coordinate activities with Johannesburg Water operations personnel to minimize disruptions. Services will be rendered at Northern WWTW, William Nicol Ext (R511+/- 8km north of Fourways). Required plant and equipment include vacuum trucks, long boom excavators/mechanical grabbers, shovels, rakes, manual scrapers, skip bins, portable sludge hoppers, submersible pumps, screens/strainers, tipper trucks, skip loaders, back-hoe/front-end loaders, high-pressure water jetters (min 200-300 bar), industrial vacuum cleaners, hoses, flushing manifolds, portable generators, lighting towers, confined space entry gear, PPE kits, spill containment booms, and traffic control barriers. All equipment must be in good working condition and compliant with safety standards. Detailed technical specifications are provided for Long Boom (e.g., 15-30m reach, 35-75 tons operating weight), Skid Steer (e.g., 700-1500kg ROC, 45-75kW engine), Tipper Truck (e.g., 15m3 body volume, 12-15 tons payload), 110-Ton Crane (e.g., 52-60m boom length), REL 6m3 Skip, 6m3 Skip Loader Truck, and 6 Inch Pump (e.g., 200-500 m3/h flow rate, up to 76-80mm solids handling). Estimated quantities include 10 Primary Settling Tanks (72120 m3) and 4 Raw Sludge Sumps (4000 m3). Deliverables include a detailed method statement, daily site records, waste disposal management, photographic records, and a completion report for each work instruction.

must indicate their B-BBEE status by providing either a B-BBEE Verification Certificate or a Sworn Affidavit (for EMEs or QSEs). Bidders are required to provide their VAT Registration Number, Supplier Tax Central Compliance Status, and MAAA Compliance Supplier Database No. CIDB Grading is not applicable (N/A) for this tender. The service provider must comply fully with the Occupational Health and Safety Act and all applicable regulations, Johannesburg Water’s safety policies, procedures, and site rules, confined space entry requirements, and environmental legislation governing waste handling, transport, and disposal (including NEM:WA). A site-specific Health and Safety Plan, Risk Assessment, and Method Statement must be submitted and approved prior to commencement of any work. Bids will not be considered from persons in the service of the state, companies with directors who are persons in the service of the state, or close corporations with members who are persons in the service of the state.

pricing/quotations must be submitted by completing the attached forms or on the official company letterhead, signed and accompanied by the required returnable documents. A Schedule of Prices is attached and forms part of the tender. The document does not specify financial capacity, solvency requirements, invoice/payment schedules, or requirements for financial guarantees/bonds.