--- title: "Supply, Repair, Installation and Maintenance of Sewer Depth and Event Duration Monitors" ocid: "ocds-h6vhtk-0509dd" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-0509dd" markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-0509dd.md" json_url: "https://d3tenders.com/contract/ocds-h6vhtk-0509dd.json" source: "Find A Tender Service" current_stage: "Award" buyer: "THAMES WATER UTILITIES LIMITED" published: "2026-03-19" --- # Supply, Repair, Installation and Maintenance of Sewer Depth and Event Duration Monitors Buyer: THAMES WATER UTILITIES LIMITED Current stage: Award OCID: ocds-h6vhtk-0509dd [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-0509dd) [Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-0509dd.json) ## Summary Thames Water Utilities Limited is managing a significant procurement process focused on the supply, repair, installation, and maintenance of Sewer Depth and Event Duration Monitors, aiming for completion by the end of AMP8. The procurement, governed by legal basis ID 2023/54, operates under a competitive flexible procedure regime specifically tailored for utilities. The process encompasses five lots with a selective procurement method, covering both trunk and network aspects for Sewer Depth Monitors as well as distinct requirements for Event Duration Monitors. The contracting period spans from April 2026 through March 2029, with potential extensions up to 2034. Key dates include the issuance of an award notice on 19 March 2026, and contracts commencing on 1 April 2026. The work will be carried out primarily in regions identified as UKI and UKJ in the United Kingdom. This tender represents a substantial opportunity for specialised suppliers and service providers in the field of sewerage work. Businesses skilled in offering monitoring technologies or maintenance services can benefit significantly from the high investment value associated with this procurement, as evidenced by the gross award amounts of up to GBP 60,240,000. The structure allows multiple suppliers to engage through various lots, providing a platform for both large companies and SMEs. SMEs like HWM-Water Ltd and Technolog Ltd, specialising in sewerage equipment, are well-positioned to compete owing to their expertise and regional coverage abilities. The contracts include framework agreements, enabling suppliers to optimally position themselves in ongoing and future operations within Thames Water's regions. This setup not only offers immediate revenue through fulfilment of contract obligations but also promises growth potential from renewal options and supplementary regional engagements. ## Notice We need c15,000 - 30,000 additional Sewer Depth Monitors and c900 Event Duration Monitors (installation & spares) to be installed by the end of AMP8. This number of SDM installations was calculated in the strategic modelling of blockage, flooding and pollution performance and is part of a suite of planned interventions (including sewer cleaning, customer education, sewer rehabilitation) that are identified to deliver performance improvements through AMP8. This procurement is to source service provides for the supply/repair of devices and service providers for the installation and maintenance. It will be split into 5 lots: *Lot 1a Supply/repair of Sewer Depth Monitors (Trunk) *Lot 1b Supply/repair of Sewer Depth Monitors (Network) *Lot 2 Supply/repair of Event Duration Monitors *Lot 3 Installation and maintenance of Sewer Depth Monitors *Lot 4 Installation and maintenance of Event Duration Monitors ### Lot Information Supply/repair of Sewer Depth Monitors (Trunk) The supply and repair of Sewer Depth Monitors (trunk). Renewal: Thames Water envisages that the contract will be awarded for an initial term of 3 years with options to extend by 1 year or longer, up to a maximum overall term of 8 years. Supply of Sewer Depth Monitors (Network) The Supply/repair of Sewer Depth Monitors (Network). Renewal: Thames Water envisages that the contract will be awarded for an initial term of 3 years with options to extend by 1 year or longer, up to a maximum overall term of 8 years. Supply/repair of Event Duration Monitors The Supply and repair of Event Duration Monitors Renewal: Thames Water envisages that the contract will be awarded for an initial term of 3 years with options to extend by 1 year or longer, up to a maximum overall term of 8 years. Installation and maintenance of Sewer Depth Monitors The Installation and maintenance of Sewer Depth Monitors Renewal: Thames Water envisages that the contract will be awarded for an initial term of 3 years with options to extend by 1 year or longer, up to a maximum overall term of 8 years. Installation and maintenance of Event Duration Monitors The Installation and maintenance of Event Duration Monitors Renewal: Thames Water envisages that the contract will be awarded for an initial term of 3 years with options to extend by 1 year or longer, up to a maximum overall term of 8 years. ## Key Details | Field | Value | | --- | --- | | Publication source | Find A Tender Service | | Latest notice | https://www.find-tender.service.gov.uk/Notice/025360-2026 | | Notice type | UK6 - Contract Award Notice | | Procurement type | Framework | | Procurement category | Works | | Procurement method | Selective | | Procurement method details | Competitive flexible procedure | | Tender suitability | SME | | Awardee scale | Large, SME | | All stages | Tender, Award | ## Dates | Field | Value | | --- | --- | | Publication date | 19 Mar 2026 | | Submission deadline | 27 May 2025 | | Future notice date | Not specified | | Award date | 16 Mar 2026 | | Contract period | 31 Mar 2026 - 31 Mar 2029 | | Recurrence | 2033-04-25 | ## Values | Field | Value | | --- | --- | | Tender value | £50,200,000 | | Lots value | £47,334,458 | | Awards value | £47,334,459 | | Contracts value | Not specified | ## Status | Field | Value | | --- | --- | | Tender status | Complete | | Lots status | Complete | | Awards status | Pending | | Contracts status | Not specified | ## Buyer | Field | Value | | --- | --- | | Main buyer | THAMES WATER UTILITIES LIMITED | | Locality | READING | | Post town | Reading | | Postcode | RG1 8DB | | Country | England | | ITL 1 | TLJ South East (England) | | ITL 2 | TLJ1 Berkshire, Buckinghamshire and Oxfordshire | | ITL 3 | TLJ16 Berkshire West | | Local authority | Reading | | Electoral ward | Thames | | Westminster constituency | Reading Central | | Delivery location | TLH East (England), TLI London, TLJ South East (England) | ## Supplier | Field | Value | | --- | --- | | Number of suppliers | 7 | | Supplier names | AMELIO UTILITIES; ENVIROMONTEL; HWM-WATER; RPS ENVIRONMENTAL MANAGEMENT; TECHNOLOG; UDLIVE; UTILITEC SERVICES | ## CPV Codes ### Divisions - 45 - Construction work ### Codes - 45232410 - Sewerage work ## Release History - 19 Mar 2026 at 15:41 - Award - UK6 - Contract Award Notice - https://www.find-tender.service.gov.uk/Notice/025360-2026 - 30 Apr 2025 at 09:46 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/017871-2025 ## Documents - https://www.find-tender.service.gov.uk/Notice/025360-2026 19th March 2026 - Contract award notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/017871-2025 30th April 2025 - Tender notice on Find a Tender ## Notice URLs - http://www.amelio-group.com - http://www.enviromontel.co.uk - http://www.technolog.com - http://www.technolog.com/utilitec - https://forms.office.com/e/6b4jmhn4aT - https://www.hwmglobal.com/ - https://www.legislation.gov.uk/ukpga/2023/54/contents - https://www.rpsgroup.com/ - https://www.thameswater.co.uk/ - https://www.udlive.io/ ## 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-0509dd. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-0509dd.json.