Award

Ask AI about this notice

Summarise, research or assess it with AI

View Markdown

Share this notice

Send this contract to a colleague

K298 Maple Lodge STW Quality AMP 7 New Permit

THAMES WATER UTILITIES LIMITED

This public procurement record has 2 releases in its history.

Award

17 Feb 2026 at 15:58

UK6 - Contract Award Notice
Tender

01 Apr 2025 at 08:22

UK4 - Tender Notice
Summary of the contracting process

The procurement process for the project titled "K298 Maple Lodge STW Quality AMP 7 New Permit" was initiated by Thames Water Utilities Limited, a private utility company based in Reading, United Kingdom. This contract, valued between £140m to £280m, falls within the "Wastewater treatment plant construction work" category and is located in the UKI region. The procurement method used was a selective competitive flexible procedure, and the contract has reached the award stage as of February 2026, with the awarded supplier being Kier Infrastructure and Overseas Limited. The contract period is set to commence on 1st April 2026 and end on 29th March 2030.

This tender offers significant opportunities for companies involved in wastewater treatment plant construction and related infrastructure sectors, particularly those with expertise in civils alterations, chemical dosing systems, and SCADA upgrades. The project involves complex technical work packages, making it suitable for large-scale businesses capable of managing high-value contracts and delivering advanced engineering solutions. Supplier selection was rigorous, emphasising technical, behavioural, and commercial capabilities, presenting a growth opportunity for businesses that can innovate and meet Thames Water's high standards.

How relevant is this notice?

Notice Information

Notice Title

K298 Maple Lodge STW Quality AMP 7 New Permit

Notice Description

This project includes, but is not limited to the following packages of work: An additional inlet screen with civils alterations and screening handling upgrade An additional detritor and flow inlet channel, incorporating a new storm separation weir A new storm tank and river outfall, including flow transfer culvert and new storm return pumping station Upgrades to the existing six PSTs and conversion of three storm tanks into PSTs, fitted with chain and flight scraper Replacement Primary chemical dosing pumps to aid Phosphorus removal A new activated sludge plant Bank C, with new feed PS and blowers Eight new 28m diameter final settlement tanks, interconnecting pipework, distribution chambers and RAS system A new secondary chemical dosing system to aid Phosphorus removal Two new Tertiary Solids Removal treatment plants, one serving the effluent from Bank A and B, and one serving the effluent from the new Bank C An additional Drum thickener New incoming switchboard for the new DNO supply Modification and upgrade of HV/LV networks Modification and upgrade to the power management system and site-wide SCADA Modification and upgrade to the Process SCADA Additional standby powered generation Demolition and removal of redundant structures, plant and equipment N.B. Please note that this Contract Notice shows a value of PS280m. The current contract value is circa PS140m-PS280m.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-04faf2
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/014471-2026
Current Stage
Award
All Stages
Tender, Award

Procurement Classification

Notice Type
UK6 - Contract Award Notice
Procurement Type
Standard
Procurement Category
Works
Procurement Method
Selective
Procurement Method Details
Competitive flexible procedure
Tender Suitability
Not specified
Awardee Scale
Large

Common Procurement Vocabulary (CPV)

CPV Divisions

45 - Construction work

CPV Codes

45252127 - Wastewater treatment plant construction work

Notice Value(s)

Tender Value
£280,000,000 £100M-£1B
Lots Value
£280,000,000 £100M-£1B
Awards Value
£280,000,000 £100M-£1B
Contracts Value
Not specified

Notice Dates

Publication Date
17 Feb 20266 months ago
Submission Deadline
25 Apr 2025Expired
Future Notice Date
Not specified
Award Date
17 Feb 20266 months ago
Contract Period
1 Apr 2026 - 29 Mar 2030 3-4 years
Recurrence
Not specified

Notice Status

Tender Status
Complete
Lots Status
Complete
Awards Status
Pending
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
THAMES WATER UTILITIES LIMITED
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
READING
Postcode
RG1 8DB
Postcode Area
Reading
Country
England
Major Region (ITL 1)
TLJ South East (England)
Basic Region (ITL 2)
TLJ1 Berkshire, Buckinghamshire and Oxfordshire
Small Region (ITL 3)
TLJ16 Berkshire West
Delivery Location
TLI London
Local Authority
Reading
Electoral Ward
Thames
Westminster Constituency
Reading Central

Supplier Information

Number of Suppliers
1
Supplier Name

KIER INFRASTRUCTURE AND OVERSEAS LIMITED

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

JSON Markdown

The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts.

Loading OCDS record...