--- title: "Procurement of Tank Covers" ocid: "ocds-h6vhtk-0654b0" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-0654b0" markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-0654b0.md" json_url: "https://d3tenders.com/contract/ocds-h6vhtk-0654b0.json" source: "Find A Tender Service" current_stage: "Tender" buyer: "SEVERN TRENT WATER LIMITED" published: "2026-06-25" --- # Procurement of Tank Covers Buyer: SEVERN TRENT WATER LIMITED Current stage: Tender OCID: ocds-h6vhtk-0654b0 [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-0654b0) [Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-0654b0.json) ## Summary Severn Trent Water Limited is currently at the tender stage of a procurement process for the supply and installation of tank cover systems for wastewater and water treatment assets. This project is part of their AMP8 Net Zero Investment Programme, aimed at delivering "Cover and Treat" solutions, targeting emission reductions across approximately 23 sites in the United Kingdom. The tender, titled "Procurement of Tank Covers", falls under the industry category of water distribution and related services. Interested suppliers must submit their expressions of interest by 22 July 2026, with enquiries closing on 15 July 2026. The procurement method being used is a selective, competitive flexible procedure, and the contract is expected to commence on 15 January 2027 and could run until 2031 or even extend up to 2035. This tender presents significant business growth opportunities for companies specialised in designing, manufacturing, and installing cover systems for treatment plants. Suppliers with expertise in roof works, purification plant equipment, and the production of tanks or related containers will find this contract particularly relevant. The procurement's framework agreement method, which allows for direct award or mini-competition, means that even larger firms capable of handling multiple projects simultaneously may be favoured. The emphasis on collaborative work and environmental management systems suggests suitability for forward-thinking companies prioritising sustainable and innovative solutions. ## Notice Overview The Contracting Authority requires the design, supply and installation of tank cover systems for wastewater and water treatment assets. As part of its AMP8 Net Zero Investment Programme, the Contracting Authority intends to deliver Cover and Treat solutions across approximately 23 sites (subject to change) to reduce process emissions by approximately 19,618 tCO2e. Hafren Dyfrdwy also has an AMP8 regulatory commitment to deliver a Cover and Treat solution at one site, contributing a further reduction of approximately 411 tCO2e. The scope includes Activated Sludge Plant (ASP) lanes and Liquor Treatment Plant (LTP) tanks associated with wastewater and sludge treatment processes. These assets operate continuously and contain biologically active, aerated liquors that generate off-gases during normal operation. Any proposed tank cover solution must be suitable for installation over live operational treatment assets and must not adversely affect process performance, operation, maintenance activities or access requirements. The final number, size and location of sites may be subject to change and will be defined within the procurement documents. Anticipated Scope of Contract The successful suppliers will be required to design, manufacture, supply, deliver, install, test and commission impermeable tank cover systems for Activated Sludge Plants (ASPs) and Liquor Treatment Plants (LTPs). The anticipated scope includes all activities necessary to provide a complete and operational tank cover solution, including design development, calculations, drawings, fabrication, quality assurance, delivery, installation, testing, commissioning, operation and maintenance documentation and warranties. The successful suppliers will be expected to assess the suitability of existing tank structures to support the proposed cover system, including consideration of structural condition, load paths, connection methodology and access requirements. Intrusive investigations and structural remediation works are not currently anticipated to form part of the scope unless specifically instructed. The successful suppliers will be required to work collaboratively with the Contracting Authority and its appointed designers to define interfaces between the tank cover system and any future extraction or treatment systems. The design and delivery of such extraction and treatment systems, including extraction fans, ductwork and treatment processes, is not expected to form part of this contract. ### Lot Information Lot 1 Renewal: The Contracting Authority intends to establish a Framework Agreement for an initial term of four (4) years, anticipated to commence in January 2027. The Framework Agreement may be extended by up to a further four (4) years at the Authority's discretion, in increments to be determined by the Authority, for example 1+1+1+1 years, giving a maximum framework term of eight (8) years. ### Planning Information STW are investigating the procurement for the supply and delivery of covers of our ASP tanks (Activated Sludge Plant). We are keen to engage with interested suppliers to help us inform our sourcing strategy and procurement process. Any future Tender Notice will be published and response to this pre market engagement is optional and does not contribute to any procurement process. All information gathered as part of this market engagement process will be used to inform our understanding of the market and support us in refining our requirements. We will publish an initial questionnaire (please see link below) inviting interested suppliers to provide information on their products and services. Following review of the responses to this questionnaire we reserve the right to contact suppliers individually to discuss their responses further and explore any additional areas that may arise during the market engagement period, including testing of potential tender documentation such as specification. https://forms.office.com/Pages/ResponsePage.aspx?id=mR5c4eN7XEmXjuynuOqfMYDU6ocOxeJDlDF1UpKb1EdUMzY1TzFIRTdDNVZQN1ZQWTdXMzhZNFo2NS4u Whilst the initial market engagement period is until 31 March 2026 , we would like to hear from suppliers as soon as possible through the completion of the questionnaire (link above). Any questions re access or completion of the questionnaire please email: AdvancedProcurement@severntrent.co.uk This period has now been extended to 30th April to enable further market engagement activities. If you are interesting in learning more about this opportunity please email the above mailbox. ## Key Details | Field | Value | | --- | --- | | Publication source | Find A Tender Service | | Latest notice | https://www.find-tender.service.gov.uk/Notice/059640-2026 | | Notice type | UK4 - Tender Notice | | Procurement type | Framework | | Procurement category | Goods | | Procurement method | Selective | | Procurement method details | Competitive flexible procedure | | Tender suitability | Not specified | | Awardee scale | Not specified | | All stages | Planning, Tender | ## Dates | Field | Value | | --- | --- | | Publication date | 25 Jun 2026 | | Submission deadline | 15 Jul 2026 | | Future notice date | 31 Mar 2026 | | Award date | Not specified | | Contract period | 15 Jan 2027 - 14 Jan 2031 | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | £37,400,000 | | Lots value | £37,400,000 | | Awards value | Not specified | | Contracts value | Not specified | ## Status | Field | Value | | --- | --- | | Tender status | Active | | Lots status | Active | | Awards status | Not specified | | Contracts status | Not specified | ## Buyer | Field | Value | | --- | --- | | Main buyer | SEVERN TRENT WATER LIMITED | | Locality | COVENTRY | | Post town | Coventry | | Postcode | CV1 2LZ | | Country | England | | ITL 1 | TLG West Midlands (England) | | ITL 2 | TLG3 West Midlands | | ITL 3 | TLG33 Coventry | | Local authority | Coventry | | Electoral ward | St Michael's | | Westminster constituency | Coventry South | | Delivery location | TLC North East (England), TLD North West (England), TLE Yorkshire and The Humber, TLF East Midlands (England), TLG West Midlands (England), TLH East (England), TLI London, TLJ South East (England), TLK South West (England), TLL Wales | ## CPV Codes ### Divisions - 44 - Construction structures and materials; auxiliary products to construction (except electric apparatus) - 45 - Construction work - 65 - Public utilities ### Codes - 44112400 - Roof - 44112410 - Roof frames - 44112420 - Roof supports - 44112500 - Roofing materials - 44400000 - Miscellaneous fabricated products and related items - 44600000 - Tanks, reservoirs and containers; central-heating radiators and boilers - 45252200 - Purification plant equipment - 45260000 - Roof works and other special trade construction works - 65100000 - Water distribution and related services ## Release History - 25 Jun 2026 at 07:00 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/059640-2026 - 17 Apr 2026 at 13:49 - PlanningUpdate - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/035277-2026 - 16 Feb 2026 at 18:09 - PlanningUpdate - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/014059-2026 - 16 Feb 2026 at 11:44 - Planning - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/013771-2026 ## Documents - https://www.find-tender.service.gov.uk/Notice/059640-2026 25th June 2026 - Tender notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/035277-2026 17th April 2026 - Preliminary market engagement notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/014059-2026 16th February 2026 - Preliminary market engagement notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/013771-2026 16th February 2026 - Preliminary market engagement notice on Find a Tender ## Notice URLs - http://www.severntrent.com - https://forms.office.com/Pages/ResponsePage.aspx?id=mR5c4eN7XEmXjuynuOqfMYDU6ocOxeJDlDF1UpKb1EdUMzY1TzFIRTdDNVZQN1ZQWTdXMzhZNFo2NS4u - https://portal.us.bn.cloud.ariba.com/dashboard/public/appext/comsapsbncdiscoveryui#/RfxEvent/preview/1110016946?anId=ANONYMOUS - https://portal.us.bn.cloud.ariba.com/dashboard/public/appext/comsapsbncdiscoveryui#/RfxEvent/preview/1110016946?anId=ANONYMOUSPQQsubmissionsand,forsuppliersshortlistedfollowingthePQQstage,RFPsubmissionsmustbesubmittedviatheContractingAuthority'sSAPAribae-tenderingsystem.Pleaserefertothetenderdocumentationforfurtherinstructionsandinformation. - https://www.legislation.gov.uk/ukpga/2023/54/contents ## Provenance This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-0654b0. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-0654b0.json.