Cleaning of the TDH installation at the Hengelo wastewater treatment plant

Summary

The tender concerns the cleaning of the TDH installation, including the incoming and outgoing pipelines, at the Hengelo wastewater treatment plant. One agreement will be concluded with the economically most advantageous tenderer. The planned contract period is 1 January–31 December 2027, with up to three one-year extensions. The estimated contract value is EUR 280,000 and the framework maximum is EUR 560,000. Tenders must be submitted by 16 November 2026 at 11:00. Electronic invoicing is required and electronic catalogue submission is not permitted.