Severn Trent has launched an early market engagement exercise seeking supply chain input ahead of issuing a potential AMP8 tender for Combined Sewer Overflow (CSO) chambers.
The water company says the early engagement is aimed at helping to shape a sourcing strategy and procurement process that not only meets its own technical and commercial requirements but is also accessible and appropriate for a broad range of suppliers.
Suppliers who choose to engage will neither be advantaged nor disadvantaged in any future tendering process and participation in the pre-market engagement is entirely optional.
Severrn Trent is asking interested suppliers to complete a premarket engagement form.
In addition to providing their company details, suppliers are also being asked to respond to the following questions:
- How many CSO Chambers have you installed over the last 12 months?
- What types and sizes of CSO chambers do you manufacture?
- What materials are used in the construction (e.g., concrete, HDPE, fiberglass)?
- Do you use low-carbon or recycled materials in your CSO chambers?
- Please provide a brief description of the construction method for your chambers.
- Are the chambers you provide either partially or fully pre-fabricated?
- What is the average install time for a typical CSO chamber?
- What is the design life on your chambers, and can you evidence this?
- Do you have standardised sizing for your CSO chambers? If not, is this something you would consider?
- Do you have the capability to install a screen into the CSO chamber, prior to it being transported to site?
- Do you have carbon targets, and are you able to provide carbon assessments for your chambers?
- Do you conduct carbon audits or lifecycle assessments (LCAs) for your products?
- How do your design choices contribute to reducing embodied carbon?
- Are your products certified under any carbon or sustainability standards (e.g., EPD, PAS 2080, ISO 14067)?
Current estimated start and end contract dates are 1 July 2026 to 1 July 2029 with a further possible extension option to 1 July 2031.Deadline to participate in the engagement process is 6 November 2025 - click here to access the premarket engagement form:
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