Prior Information Notice: Realization of Additional Purification Step and Low-Voltage Installation at RWZI Uithoorn

Stichting Waternet (Waternet Foundation) has issued a Prior Information Notice for a European tender concerning the main contract for the RWZI Uithoorn wastewater treatment plant. This main contract comprises two separate sub-contracts. The first sub-contract involves the realization of an additional purification step aimed at removing micro-pollutants and achieving advanced phosphorus removal. The second sub-contract focuses on the replacement of the complete low-voltage installation (LSI). These works are to be carried out at the operational wastewater treatment plant located in Uithoorn. The procedure is 'Openbaar' (Open), and the publication type is 'Aankondiging opdracht' (Contract Notice), indicating the tender is upcoming. The contract type is 'Werken' (Works). This significant project aims to enhance the treatment capacity and efficiency of the Uithoorn facility, ensuring compliance with stricter environmental regulations and improving the quality of treated wastewater.

This is a works contract in the general supplies sector. Located in Netherlands, Europe, this opportunity is open to firms and consortiums. Proposals must be submitted before September 16, 2026.

Published through Netherlands TenderNed, a national government procurement portal. Public procurement tenders follow the country's national bidding regulations and may have specific eligibility and documentation requirements for civil works in the general supplies sector. Works contracts of this nature generally require demonstrated experience in similar infrastructure projects, adequate equipment and technical personnel, and financial capacity including bank guarantees. Interested parties should review the full documentation on the original source before submitting their proposal.