Official UK procurement notice
Supply & Install of Modular Treatment Equipment: Preliminary, Primary Filtration and Fixed Film Biological Systems
Authority: SEVERN TRENT WATER LIMITED (Public body)·Consortium: 2 public authorities
What is being bought4 lots · detail below
Published requirement descriptionThis tender process is for the provision of Supply & Install of Modular Treatment Equipment: Fixed‑Film Biological, Preliminary and Primary Filtration Systems. A summary of the scope across all Lots forming part of this tender is stated below.
The Modular Treatment framework will consist of suppliers who have the ability to design, supply & install containerised assets on a flatbed vehicle as a standalone solution either be removed via roll on/roll off functionality or craneage.
This framework will also consider semi modular assets which are assembled/installed by the asset supplier and involve greater civil complexity due to these assets requiring partial burying, but typically without the requirement for additional shuttering that's associated with traditional concrete assets.
These assets will either be purchased by the Utilities directly and the novated or free issued to the Utilities Capital Construction supply chain partners.
- How the procedure runs: Bidders will be required to complete and submit a Pre-Qualification Questionnaire (PQQ). Responses will be evaluated against the criteria set out in the PQQ briefing pack, and the six highest-scoring suppliers in each lot will be shortlisted to participate in the next stage of the procurement process. Shortlisted bidders will then be invited to submit a detailed proposal in response to the Request for Proposal (RFP). The procurement process will then comprise a number of subsequent evaluation, scoring and moderation stages, as detailed within the RFP briefing pack. As an initial assessment, bidders' responses to the proposed terms and conditions will be reviewed before any other part of the submission. These stages may include proposal evaluation, supplier clarification discussions, presentations, site visits and commercial negotiations, where deemed appropriate by Severn Trent. Severn Trent reserves the right to amend, combine or omit stages as set out in the RFP briefing pack and in accordance with the Competitive Flexible Procedure.
CPV: Machinery for the treatment of sewage
How this framework works
From the published notice- Type
- Closed framework
- Call-offs
- call-offs are awarded directly to appointed suppliers, without further competition
- Framework period
- 3 yrs · up to 4 yrs 10 mo from 14 Dec 2026
Published description of the framework
Where a requirement arises for [LOT 1/2/3 Modular Treatment Equipment], the Client may make a Direct Award to the appointed Supplier (or, where applicable, the highest-ranked Supplier) in accordance with the provisions of this Agreement.
The process for placing orders, supplier obligations, performance management, pricing arrangements and any circumstances under which the Client may approach an alternative Supplier shall be as set out in the Terms and Conditions.
Further details of the Direct Award process and the respective rights and obligations of the parties are set out in the Terms and Conditions.
Lots and requirements (4)Procurement structure
4 lots · all with a published value · same evaluation weights on every lotEvery one of these 2 lots carries the same published figure, £7,000,000: it is the framework's maximum for the whole notice, not each lot's own budget, and no share per lot is published. The cards below say ceiling above rather than repeat it.
Lot #1Modular, Preliminary Treatment SolutionsRenewalPublished value£2,500,000
he Goods to be supplied under this Agreement shall comprise modular inlet screening solutions, with optional grit and/or FOG removal modules, for applications up to 100 l/s.
The Supplier shall work with the Client to develop and finalise site-specific proposals under each Call Off Contract based on information provided by the Client. Solutions shall be containerised, modular, quick to install, durable, and designed to minimise operational and maintenance requirements, while enabling safe operation, monitoring, and integration with existing control and SCADA systems.
Where required, solutions may also include grit removal, FOG removal, screenings dewatering, and associated ancillary equipment. All materials, equipment, and components supplied shall be new, fit for purpose, compliant with relevant
British/European Standards, WIMES requirements, and OEM specifications. Full technical requirements, performance criteria, and detailed specifications are contained within the Technical Specification issued as part of the PQQ documentation.
Lot #2Modular Primary Filtration SolutionsRenewalPublished value£9,300,000
The Goods to be supplied under this Agreement shall comprise modular primary filtration solutions, using belt or drum filters as an alternative to primary settlement tanks, for applications up to 100 l/s.
The Supplier shall work with the Client to develop and finalise site-specific proposals under each Call Off Contract based on information provided by the Client. Solutions shall be capable of achieving the required suspended solids removal performance, operate with minimal manual intervention, and include all necessary ancillary equipment, controls, sludge handling, monitoring, and SCADA integration to support reliable operation.
Depending on site requirements, solutions may also include redundancy, flow balancing, wash water systems, FOG mitigation measures, and long-term service support. All materials, equipment, and components supplied shall be new, fit for purpose, compliant with relevant British/European Standards, WIMES requirements, and OEM specifications.
Full technical requirements, performance criteria, and detailed specifications are contained within the Technical Specification issued as part of the PQQ documentation.
Lot #3Modular, Fixed-film Biological Treatment Solutions - SecondaryRenewalceiling above
he Goods to be supplied under this Agreement shall comprise modular fixed-film biological treatment solutions, including Submerged Aerated Filters (SAFs) and Moving Bed Biofilm Reactors (MBBRs), for secondary BOD reduction and secondary or tertiary ammonia removal.
The Supplier shall work with the Client to develop and finalise site-specific proposals under each Call Off Contract based on information provided by the Client. Solutions shall be modular, containerised where appropriate, designed for efficient installation and operation, and include all necessary process equipment, controls, monitoring, sludge management, aeration requirements, and SCADA integration to achieve the required treatment performance across the specified population equivalent ranges.
Depending on site requirements, solutions may also include blower systems, dissolved oxygen monitoring, multiple treatment zones, flow balancing, and parallel treatment arrangements. All materials, equipment, and components supplied shall be new, fit for purpose, compliant with relevant British/European Standards, WIMES requirements, and OEM specifications.
Full technical requirements, performance criteria, sizing criteria, and detailed specifications are contained within the Technical Specification issued as part of the PQQ documentation.
Lot #4Modular, Fixed-film Biological Treatment Solutions - Tertiary & Alternating and non alternatingRenewalceiling above
The Goods to be supplied under this Agreement shall comprise modular fixed-film biological treatment solutions, including Submerged Aerated Filters (SAFs) and Moving Bed Biofilm Reactors (MBBRs), for tertiary ammonia removal applications up to a nominal population equivalent of 15,000 PE.
The Supplier shall work with the Client to develop and finalise site-specific proposals under each Call Off Contract based on information provided by the Client. Solutions shall be modular, containerised where appropriate, designed for efficient installation and operation, and include all necessary process equipment, controls, monitoring, aeration, sludge management, and SCADA integration to achieve the required treatment performance. Depending on site requirements, solutions may also include blower systems, dissolved oxygen monitoring, multiple treatment zones, flow balancing, and parallel treatment arrangements.
All materials, equipment, and components supplied shall be new, fit for purpose, compliant with relevant British/European Standards, WIMES requirements, and OEM specifications.
Full technical requirements, performance criteria, population equivalent sizing bands, and detailed specifications are contained within the Technical Specification issued as part of the PQQ documentation.
What it takes to wini
How this buyer will score bids.
The evaluation criteria and weights exactly as published on the notice, grouped by family (price, quality, social value and so on).
Evaluation split and conditions of participation as published; the tender pack may add morei
How this buyer will score bids.
The evaluation criteria and weights exactly as published on the notice, grouped by family (price, quality, social value and so on).
Published sub-criteria (3)
- Quality: 60%
- Price: 30%
- Sustainability: 10%
Published award criteria (3)
- Quality
- Sustainability
- Price
- Price carries 30 of 100 points: a 10% discount moves about 3 points. The method statement decides this lot, not the discount.
- “Supply & Install of Modular Treatment Equipment: Preliminary, Primary…” is a framework: the contest is a place on its panel, not a single contract, and call-offs are awarded directly: getting appointed is the whole game.
Price arithmetic assumes straight proportional scoring; the tender pack may use another formula.
Procedure terms & legal framework
From the official record- Procedure method
- Competitive flexible procedure
- Legal basis
- UKPGA · 2023/54 Procurement Act 2023
- Procurement category
- Goods
- Notice status
- Closed
- Procurement threshold
- Above threshold (FTS publication)
- Regulatory regime
- Utilities
- Commercial structure
- Framework agreement
- Who may use this agreement
- Not stated in the notice; call-off rights may be limited to the establishing authority
- Competition type
- Competitive procedure
- GPA / WTO covered
- Unspecified in notice
- Recurring procurement
- Unspecified in notice
- First published
- 23 Mar 2026, 16:45 GMT
- Last source update
- 28 Jul 2026, 08:01 BST
- Award evaluation window
- Submission end – 30 Nov 2026
- FTS notice number
2026/S 000-070410- Latest notice
- Tender notice (UK4)
- Classification (CPV)
- Delivery area
- Official registry OCID
ocds-h6vhtk-0671ebFind a Tender
- How it runs
Bidders will be required to complete and submit a Pre-Qualification Questionnaire (PQQ). Responses will be evaluated against the criteria set out in the PQQ briefing pack, and the six highest-scoring suppliers in each lot will be shortlisted to participate in the next stage of the procurement process.
Shortlisted bidders will then be invited to submit a detailed proposal in response to the Request for Proposal (RFP).
The procurement process will then comprise a number of subsequent evaluation, scoring and moderation stages, as detailed within the RFP briefing pack. As an initial assessment, bidders' responses to the proposed terms and conditions will be reviewed before any other part of the submission.
These stages may include proposal evaluation, supplier clarification discussions, presentations, site visits and commercial negotiations, where deemed appropriate by Severn Trent.
Severn Trent reserves the right to amend, combine or omit stages as set out in the RFP briefing pack and in accordance with the Competitive Flexible Procedure.
How it was run
Official notice- Appointment period ends
- 21 Aug 2026, 23:59 BST
- Submission channel
- Official e-sourcing portal
- Electronic submission
- Allowed
- Accepted languages
- en
Timeline
23 Mar 2026 → 14 Dec 2026 · 7 dates- Planning notice published211 days ago23 Mar 2026, 16:45 GMT
- Market engagement193 days ago10 Apr 2026, 23:59 BST
We are keen to engage with interested suppliers to help design and tailor a sourcing strategy and procurement process that meets our requirement but is also suitable to the widest group of suppliers. Any future Tender Notice will be published and response to this pre market engagement is optional and does not contribute to any procurement process.
We invite suppliers to complete the following form and we will be in touch:
- Tender notice published89 days ago24 Jul 2026, 15:32 BST
- Latest notice published85 days ago28 Jul 2026, 08:01 BST
- Admission / appointment period ends60 days ago · period end, not a bid countdown21 Aug 2026, 23:59 BST
- Today21 Oct 2026
- Award decision expected byin 41 days30 Nov 2026, 23:59 GMT
- Contract startsin 54 days14 Dec 2026
Notice history
8 events · 3 releases on Find a Tender · since 23 Mar 2026- Preliminary market engagement notice published23 Mar 2026, 16:45 GMTUK2
- Tender notice published24 Jul 2026, 15:32 BSTUK4
- Published value updated to £19,372,50024 Jul 2026, 15:32 BSTwas £25,830,000
- Status changed to active24 Jul 2026, 15:32 BST
- Procurement method changed24 Jul 2026, 15:32 BST
- Deadline published: 21 Aug 2026, 23:59 BST24 Jul 2026, 15:32 BST
- Tender notice published28 Jul 2026, 08:01 BSTUK4
- Deadline moved to 21 Aug 2026, 23:59 BST28 Jul 2026, 08:01 BST+0 days · was 21 Aug 2026, 23:59 BST
Published amendments (1)
- Link to SAP Ariba corrected - Removed character from title that was displaying incorrectly
Contracting authority & participating public bodies
2 public bodies on the noticeConsortium members and other public bodies
- HAFREN DYFRDWY CYFYNGEDIGContracting authorityPrivate utilityWelsh devolved regulations apply
Official documents & specifications (3)
Official links; attachments are not copiedNotices published for this procedure
- Tender notice Tender notice on Find a Tender
- Tender notice Tender notice on Find a Tender
- Preliminary market engagement notice Preliminary market engagement notice on Find a Tender