Summary of the contracting process

Thames Water Utilities Limited invites tenders for the project titled "K298 Maple Lodge STW Quality AMP 7 New Permit" in the utilities industry sector. The project involves significant upgrades and installations across the wastewater treatment infrastructure located in Reading, UK. This procurement process is currently at the Tender stage, with key dates including the deadline for expression of interest on 6th May 2025 and an enquiry period ending on 25th April 2025. The contract is valued between £140 million and £280 million, and the contract period is set to begin on 20th October 2025, concluding on 29th March 2030. The project involves various works including the upgrade of several treatment units, installation of new systems and demolition of redundant structures, all contributing to the enhancement of wastewater management under a competitive flexible procedure.

This tender presents substantial business growth opportunities, particularly suited for firms specialising in construction, engineering, and utilities. Companies with expertise in wastewater treatment plant construction and those capable of handling large-scale infrastructure projects could significantly benefit from participating. The procurement process involves multiple stages, including a Procurement Specific Questionnaire (PSQ), an Invitation to Tender (ITN), and a comprehensive evaluation process focusing 40% on technical aspects, 20% on behavioural factors, and 40% on commercial considerations. Businesses capable of delivering high-quality and cost-effective solutions while adhering to detailed specifications and regulatory standards will find this tender an ideal opportunity for expansion and development in the utilities sector.

Tender

K298 Maple Lodge STW Quality AMP 7 New Permit

THAMES WATER UTILITIES

Contract Timeline

Publication Date

1st April 2025 07:22:52 AM
Contract Summary

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 £280m. The current contract value is circa £140m-£280m.
Contract Details

Open Contracting ID

ocds-h6vhtk-04faf2

Publication Source

Find a Tender Service

Procurement Stage

Tender

Procurement Method

Selective

Procurement Method Details

Competitive Flexible Procedure

Procurement Category

Works

Tender Suitability

Framework / DPS
Contract Classification

CPV Code(s)

CPV Division(s)
Awarding Authority

THAMES WATER UTILITIES

Buyer Name

Buyer Email

procurement.support.centre@thameswater.co.uk

Buyer Phone

Buyer Address

Clearwater Court

Reading

RG1 8DB

United Kingdom

View contract on Find a Tender Service

K298 Maple Lodge STW Quality AMP 7 New Permit

THAMES WATER UTILITIES

Contract Timeline

Contract Summary

Contract Details

Contract Classification

Awarding Authority