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PROCUREMENT OPPORTUNITY

Supply & Install of Modular Treatment Equipment: Preliminary, Primary Filtration and Fixed Film Biological Systems

SEVERN TRENT WATER LIMITED · Tender notice on Find a Tender

Tender information last checkedLast checked 26 Sept 2026, 15:27.

Opportunity overview

This 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.

Classification

  • CPV42996000 — Machinery for the treatment of sewage

Lots

  • Modular, Preliminary Treatment Solutions£2.5m
  • Modular Primary Filtration Solutions£9.3m
  • Modular, Fixed-film Biological Treatment Solutions - Secondary£7m
  • Modular, Fixed-film Biological Treatment Solutions - Tertiary & Alternating and non alternating£7m

Documents and notices

Published notice details

Additional information from the published procurement release. Fields appear only when supplied by the source; check the original notice and tender documents before acting.

Scope, procedure and submissions

Id
ocds-h6vhtk-0671eb
Status
active
Procurement Method
open
Procurement Method Details
Competitive flexible procedure
Main Procurement Category
goods
Above Threshold
Yes

Legal basis

Id
2023/54
Scheme
UKPGA

Procedure

Features
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.

Special regime

utilities

Techniques

Has Framework Agreement
Yes

Framework Agreement

Method
withoutReopeningCompetition
Type
closed
Description
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.

Submission terms

Electronic Submission Policy
allowed

Languages

en

Tender Period

Ends
21 Aug 2026, 23:59

Expected award period

Ends
30 Nov 2026, 23:59

Amendments

Entry 1
Description
- Link to SAP Ariba corrected - Removed character from title that was displaying incorrectly
Id
070991-2026

Lots and requirements

Entry 1
Id
1
Title
Modular, Preliminary Treatment Solutions
Description
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.
Status
active
Has Renewal
Yes

Value

Including VAT
3,000,000
Amount
2,500,000
Currency
GBP

Award criteria

Criteria

Criterion 1
Type
quality
Name
Quality

Numbers

Entry 1
Number
60
Weight
percentageExact
Criterion 2
Type
quality
Name
Sustainability

Numbers

Entry 1
Number
10
Weight
percentageExact
Criterion 3
Type
cost
Name
Price

Numbers

Entry 1
Number
30
Weight
percentageExact

Suitability

Sme
Yes

Contract period

Starts
14 Dec 2026, 00:00
Ends
14 Dec 2029, 23:59
Max Extent Date
20 Oct 2031, 23:59

Renewal

Description
Option to extend framework 1+1 at the end of the initial period.
Entry 2
Id
2
Title
Modular Primary Filtration Solutions
Description
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.
Status
active
Has Renewal
Yes

Value

Including VAT
11,160,000
Amount
9,300,000
Currency
GBP

Award criteria

Criteria

Criterion 1
Type
quality
Name
Quality

Numbers

Entry 1
Number
60
Weight
percentageExact
Criterion 2
Type
quality
Name
Sustainability

Numbers

Entry 1
Number
10
Weight
percentageExact
Criterion 3
Type
cost
Name
Price

Numbers

Entry 1
Number
30
Weight
percentageExact

Suitability

Sme
Yes

Contract period

Starts
14 Dec 2026, 00:00
Ends
14 Dec 2029, 23:59
Max Extent Date
20 Oct 2031, 23:59

Renewal

Description
Option to extend framework 1+1 at the end of the initial period.
Entry 3
Id
3a
Title
Modular, Fixed-film Biological Treatment Solutions - Secondary
Description
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.
Status
active
Has Renewal
Yes

Value

Including VAT
8,400,000
Amount
7,000,000
Currency
GBP

Award criteria

Criteria

Criterion 1
Type
quality
Name
Quality

Numbers

Entry 1
Number
60
Weight
percentageExact
Criterion 2
Type
quality
Name
Sustainability

Numbers

Entry 1
Number
10
Weight
percentageExact
Criterion 3
Type
cost
Name
Price

Numbers

Entry 1
Number
30
Weight
percentageExact

Suitability

Sme
Yes

Contract period

Starts
14 Dec 2026, 00:00
Ends
14 Dec 2029, 23:59
Max Extent Date
20 Oct 2031, 23:59

Renewal

Description
Option to extend framework 1+1 at the end of the initial period.
Entry 4
Id
3b
Title
Modular, Fixed-film Biological Treatment Solutions - Tertiary & Alternating and non alternating
Description
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.
Status
active
Has Renewal
Yes

Value

Including VAT
8,400,000
Amount
7,000,000
Currency
GBP

Award criteria

Criteria

Criterion 1
Type
quality
Name
Quality

Numbers

Entry 1
Number
60
Weight
percentageExact
Criterion 2
Type
quality
Name
Sustainability

Numbers

Entry 1
Number
10
Weight
percentageExact
Criterion 3
Type
cost
Name
Price

Numbers

Entry 1
Number
30
Weight
percentageExact

Suitability

Sme
Yes

Contract period

Starts
14 Dec 2026, 00:00
Ends
14 Dec 2029, 23:59
Max Extent Date
20 Oct 2031, 23:59

Renewal

Description
Option to extend framework 1+1 at the end of the initial period.

Items and delivery

Item 1
Id
1
Related Lot
1

Additional Classifications

Entry 1
Scheme
CPV
Id
42996000
Description
Machinery for the treatment of sewage

Delivery locations

Entry 1
Region
UKC
Country
GB
Country Name
United Kingdom
Entry 2
Region
UKD
Country
GB
Country Name
United Kingdom
Entry 3
Region
UKE
Country
GB
Country Name
United Kingdom
Entry 4
Region
UKF
Country
GB
Country Name
United Kingdom
Entry 5
Region
UKG
Country
GB
Country Name
United Kingdom
Entry 6
Region
UKH
Country
GB
Country Name
United Kingdom
Entry 7
Region
UKI
Country
GB
Country Name
United Kingdom
Entry 8
Region
UKJ
Country
GB
Country Name
United Kingdom
Entry 9
Region
UKK
Country
GB
Country Name
United Kingdom
Item 2
Id
2
Related Lot
2

Additional Classifications

Entry 1
Scheme
CPV
Id
42996000
Description
Machinery for the treatment of sewage

Delivery locations

Entry 1
Region
UKC
Country
GB
Country Name
United Kingdom
Entry 2
Region
UKD
Country
GB
Country Name
United Kingdom
Entry 3
Region
UKE
Country
GB
Country Name
United Kingdom
Entry 4
Region
UKF
Country
GB
Country Name
United Kingdom
Entry 5
Region
UKG
Country
GB
Country Name
United Kingdom
Entry 6
Region
UKH
Country
GB
Country Name
United Kingdom
Entry 7
Region
UKI
Country
GB
Country Name
United Kingdom
Entry 8
Region
UKJ
Country
GB
Country Name
United Kingdom
Entry 9
Region
UKK
Country
GB
Country Name
United Kingdom
Item 3
Id
3a
Related Lot
3a

Additional Classifications

Entry 1
Scheme
CPV
Id
42996000
Description
Machinery for the treatment of sewage

Delivery locations

Entry 1
Region
UKC
Country
GB
Country Name
United Kingdom
Entry 2
Region
UKD
Country
GB
Country Name
United Kingdom
Entry 3
Region
UKE
Country
GB
Country Name
United Kingdom
Entry 4
Region
UKF
Country
GB
Country Name
United Kingdom
Entry 5
Region
UKG
Country
GB
Country Name
United Kingdom
Entry 6
Region
UKH
Country
GB
Country Name
United Kingdom
Entry 7
Region
UKI
Country
GB
Country Name
United Kingdom
Entry 8
Region
UKJ
Country
GB
Country Name
United Kingdom
Entry 9
Region
UKK
Country
GB
Country Name
United Kingdom
Item 4
Id
3b
Related Lot
3b

Additional Classifications

Entry 1
Scheme
CPV
Id
42996000
Description
Machinery for the treatment of sewage

Delivery locations

Entry 1
Region
UKC
Country
GB
Country Name
United Kingdom
Entry 2
Region
UKD
Country
GB
Country Name
United Kingdom
Entry 3
Region
UKE
Country
GB
Country Name
United Kingdom
Entry 4
Region
UKF
Country
GB
Country Name
United Kingdom
Entry 5
Region
UKG
Country
GB
Country Name
United Kingdom
Entry 6
Region
UKH
Country
GB
Country Name
United Kingdom
Entry 7
Region
UKI
Country
GB
Country Name
United Kingdom
Entry 8
Region
UKJ
Country
GB
Country Name
United Kingdom
Entry 9
Region
UKK
Country
GB
Country Name
United Kingdom

Published documents

Entry 1
Id
conflictOfInterest
Document Type
conflictOfInterest
Description
Not published
Entry 2
Id
070991-2026
Document Type
tenderNotice
Notice Type
UK4
Description
Tender notice on Find a Tender
Published
28 Jul 2026, 08:01
Format
text/html

Buyer, suppliers and contacts

Organisation 1
Name
SEVERN TRENT WATER LIMITED
Id
GB-COH-02366686

Identifier

Scheme
GB-COH
Id
02366686

Additional Identifiers

Entry 1
Scheme
GB-PPON
Id
PQQN-5222-QDXR

Address

Street Address
Severn Trent Centre
Locality
Coventry
Postal Code
CV1 2LZ
Country
GB
Country Name
United Kingdom
Region
UKG33

Contact

Roles

buyer

Details

Classifications

Entry 1
Scheme
UK_CA_TYPE
Id
privateUtility
Description
Private utility
Organisation 2
Name
HAFREN DYFRDWY CYFYNGEDIG
Id
GB-COH-03527628

Identifier

Scheme
GB-COH
Id
03527628

Additional Identifiers

Entry 1
Scheme
GB-PPON
Id
PWGQ-2543-XWCR

Address

Street Address
Packsaddle Wrexham Road
Locality
Wrexham
Postal Code
LL14 4EH
Country
GB
Country Name
United Kingdom
Region
UKL23

Contact

Roles

buyer

Details

Classifications

Entry 1
Scheme
UK_CA_TYPE
Id
privateUtility
Description
Private utility
Entry 2
Scheme
UK_CA_DEVOLVED_REGULATIONS
Id
GB-WLS
Description
Welsh devolved regulations apply

Recorded locations

  • Buyer location · Coventry · UKG33 · CV1 2LZ · United Kingdom
  • Delivery location · UKC · United Kingdom
  • Delivery location · UKD · United Kingdom
  • Delivery location · UKE · United Kingdom
  • Delivery location · UKF · United Kingdom
  • Delivery location · UKG · United Kingdom
  • Delivery location · UKH · United Kingdom
  • Delivery location · UKI · United Kingdom
  • Delivery location · UKJ · United Kingdom
  • Delivery location · UKK · United Kingdom

Notice and amendment history

3 published notice versions reviewed by ProcuraAxis.

3 VERSIONS
  1. 026472-2026Preliminary market engagement notice on Find a Tender ·
  2. 070410-2026Tender notice on Find a Tender ·
  3. 070991-2026Tender notice on Find a Tender ·