Bioremediation Products Panel for Wastewater Treatment

The Ekurhuleni Water Care Company (ERWAT), an entity of the City of Ekurhuleni, is establishing a panel of one to four service providers to supply, deliver, apply and monitor bioremediation (bio-treatment) products across its wastewater treatment network. The network comprises 19 water care works serving Ekurhuleni, Midvaal and Lesedi municipalities. The objective is to improve operational efficiency and effluent quality, reduce waste activated sludge, control fats, oils and grease (FOG), reduce odours and ammonia, lower aeration energy consumption and cut sludge disposal costs. The contract is rate-based, so orders are issued only as needed, and it runs for 36 months with a 12-month probation review. Quantities are indicative and may vary by site, and ERWAT does not guarantee any minimum volume.

Successful bidders will be responsible for supplying the product in powder or granulated form, conducting site preparation and dosing point identification, providing on-site activation, dosing and commissioning, and training municipal operators on correct application and monitoring. Pricing must include the product, application, technical support and site monitoring (per month), transport and delivery (per km), and the monthly rental of dosing units, including pipelines, tanks, dosing pumps, VSDs and consumables, at each designated works. Bidders must provide a Material Safety Data Sheet (MSDS), a Certificate of Analysis (COA), a technical data sheet, and evidence that the product is non-toxic, non-pathogenic, non-GMO and compliant with Biosafety Level 1 requirements. Bidders must also demonstrate at least five years of experience in wastewater biological process optimisation, provide at least three verifiable references (ideally two scientific studies from recognised research bodies), and be registered on the National Treasury Central Supplier Database (CSD). The functionality evaluation scores reference letters, performance data, product data sheets, MSDS, case studies and scientific studies, with a minimum of 80 points required before price is considered.

The bid carries a 90/10 price-to-specific-goals preference split, with points available for enterprises that are at least 51% owned by women, youth, people with disabilities or military veterans, and for enterprises located within the Ekurhuleni boundaries. A compulsory virtual briefing session takes place on 17 November 2026 at 10:30, and bidders must register in advance through the ERWAT website link; attendance is mandatory for bids to be evaluated. The closing date is 7 December 2026 at 12:00. Hardcopy bids must be deposited in the tender box at ERWAT Head Office, with an identical PDF sent by email as encouraged, though not mandatory. Bids are valid for 120 days. The operation is valuable for ERWAT's sustainability, offering a long-term opportunity for suppliers who can demonstrate proven, compliant bio-treatment performance at municipal scale. Bidders should note that the contract is subject to the MFMA, the Preferential Procurement Regulations 2022, the General Conditions of Contract (July 2010), and ERWAT's Service Level Agreement and performance management system.