--- title: "Defence Water Services Programme - UK4" ocid: "ocds-h6vhtk-050318" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-050318" markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-050318.md" json_url: "https://d3tenders.com/contract/ocds-h6vhtk-050318.json" source: "Find A Tender Service" current_stage: "Tender" buyer: "DEFENCE INFRASTRUCTURE ORGANISATION" published: "2026-01-07" --- # Defence Water Services Programme - UK4 Buyer: DEFENCE INFRASTRUCTURE ORGANISATION Current stage: Tender OCID: ocds-h6vhtk-050318 [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-050318) [Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-050318.json) ## Summary The Defence Infrastructure Organisation (DIO), acting for the Ministry of Defence (MOD), is currently inviting tenders for its Defence Water Services Programme - UK4. This procurement seeks a Managed Service Provider to offer comprehensive water and wastewater services across MOD's assets in England and Wales. The tendering process has reached the tender stage, with key dates to note: expression of interest deadline is 18 March 2026, and the award period concludes on 17 August 2027. This process is centred in the UK and is classified under the services category. The contract will commence on 1 February 2028, offering a potential value of £2,300,000,000 with options for extensions up to three additional years. The selected procurement method is selective, utilising a competitive flexible procedure. The initial implementation phase will focus on Wales and South-West England starting 1 December 2028, followed by the remainder of England on 30 March 2030. This tender represents significant opportunities for businesses in the water and wastewater management sector, particularly those specialised in operational water services, wastewater collection and treatment, and asset management planning. The procurement is suitable for diverse types of businesses, from large scale Managed Service Providers to Small and Medium Enterprises (SMEs), due to its complex and broad scope. Businesses offering innovative solutions, technical competencies, and collaborative capabilities will find apt opportunities here, especially in areas like sustainability, stakeholder management, and water supply security. Companies capable of supporting MOD's strategic goals through innovation and efficient resource management are encouraged to participate, ensuring readiness to adapt to defence needs and geopolitical influences. ## Notice The Defence Infrastructure Organisation (DIO) on behalf of the Ministry of Defence (MOD), is looking to secure the provision of end-to-end WWW services for the MOD's specified estate in England and Wales, through a single Managed Service Provider (MSP). MOD has a significant and geographically dispersed WWW estate in England and Wales with a combination of public supply and its own private water network. The Contract will go-live in 2 main stages with Wales and South-West England going first on 01 Dec 2028, with the rest of England on 30 Mar 2030, with the other smaller requirements going live as the Authority's other contracts and agreements expire or earlier with the agreement of the MSP. The Defence Water Services Programme (DWSP) will deliver a single contract to effectively support, manage and assure supply chain WWW service provision, delivering a common user experience across the England and Wales estate. Due to the extent and dispersed nature of MOD WWW assets, the MSP will need to demonstrate all technical competencies required to deliver the full spectrum of WWW services which may include but may not be limited to: Operational Water and Wastewater Services Water Abstraction & Treatment Water Abstraction & Treatment Abstraction licensing management Water resource management Operation and maintenance of raw water reservoirs and water treatment works Provision of emergency water supplies and alternative supplies for security and resilience Long-term asset management planning Potable Water Distribution & Measurement Maintenance of water mains and service pipes Lead pipe replacement Operation and maintenance of service reservoirs, booster pumps and Pressure Reducing Valves (PRVs) Additional dosing Metering and measurement Pre-planned maintenance and reactive repairs Proactive investment planning Long-term asset management planning Non-Potable Water Systems (e.g. Fire Mains) Operation and maintenance of emergency water storage, dedicated fire mains, valves and hydrants, softened water systems and saltwater systems Pre-planned maintenance and reactive repairs Proactive investment planning Wastewater Collection (Sewerage & Pumping) Sewage collection and sewerage systems Operation and maintenance of sewage pumping stations, rising mains, combined sewer overflows Resolve sewer blockages and flooding Long-term asset management planning Wastewater Treatment & Discharge Sewage treatment Management of discharge consents/permits MCERTS calibration and reporting Sludge treatment and disposal Pre-planned maintenance and reactive repairs Proactive investment Long-term asset management planning Surface Water Systems Operation and maintenance of oil water interceptors, surface water sewers and surface water discharges Flood defences and surface water flooding management Reactive repairs Proactive investment Long-term asset management planning Helpdesk & Stakeholder Management 24/7 omnichannel helpdesk Incident management and emergency Water and Wastewater services Job triage, scheduling, and feedback Complaints resolution Performance management Water and Wastewater Sampling & Analysis Water and Wastewater quality sampling Specialist laboratory and testing Reporting Specific sampling and analysis services Water and Wastewater Management Services Statutory Undertaker (SU) & Retailer Charges SU relationship management Cost forecasting SU annual negotiations Maximum Daily Demand (MDD) tariffs management Management of trade effluent discharge consents Retailer contract negotiation Issue resolution Estate Development & Change Liaison with estate development teams and developers Approvals for WWW connections Acceptance and management of third-party assets Management of MOD Third-Party agreements Easements and access rights MOD customer management and charging Third party agreements and base separations Supplier Management Appointment and management of suppliers Small to medium sized enterprise (SME) analysis Other Services Energy management Implementation of an energy management strategy Network optimisation Advise MOD on asset optimisation Identify over/under capacity Recommend removal of surplus or redundant assets Security and Resilience of Supply Collaborate with MOD to mitigate security and supply resilience issues Demand Supply Balancing Ensure a sustainable water supply that meets actual and forecasted demand Meter Calibration Verify and adjust water meter accuracy Anomaly Investigation Detection of unusual behaviours in water systems Analysis of deviations from normal operations Response to anomalies across the water cycle Licensing and Permit Management Management of licenses and permits Innovation Support MOD in driving and implementing innovation Further information regarding the scope of the contract and the key features of the future arrangements can be found in the DWSP Concept Paper. During the life of the contract there may be growth or reduction in estate driven by changes in defence outputs and requirements. ### Lot Information Lot 1 Renewal: There is an option to extend for up to three years (3) which may be taken at the Authority's discretion. ### Planning Information DWSP Industry Day - 14th October 2025 ## Key Details | Field | Value | | --- | --- | | Publication source | Find A Tender Service | | Latest notice | https://www.find-tender.service.gov.uk/Notice/001236-2026 | | Notice type | UK4 - Tender Notice | | Procurement type | Standard | | Procurement category | Services | | Procurement method | Selective | | Procurement method details | Competitive flexible procedure | | Tender suitability | SME, VCSE | | Awardee scale | Not specified | | All stages | Planning, Tender | ## Dates | Field | Value | | --- | --- | | Publication date | 7 Jan 2026 | | Submission deadline | 11 Mar 2026 | | Future notice date | 7 Oct 2025 | | Award date | Not specified | | Contract period | 1 Feb 2028 - 31 Jan 2035 | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | £2,300,000,000 | | Lots value | £2,300,000,000 | | Awards value | Not specified | | Contracts value | Not specified | ## Status | Field | Value | | --- | --- | | Tender status | Active | | Lots status | Active | | Awards status | Not specified | | Contracts status | Not specified | ## Buyer | Field | Value | | --- | --- | | Main buyer | DEFENCE INFRASTRUCTURE ORGANISATION | | Locality | LICHFIELD | | Post town | Walsall | | Postcode | WS14 9PY | | Country | England | | ITL 1 | TLG West Midlands (England) | | ITL 2 | TLG2 Shropshire and Staffordshire | | ITL 3 | TLG24 Staffordshire CC | | Local authority | Lichfield | | Electoral ward | Whittington & Streethay | | Westminster constituency | Tamworth | | Delivery location | TLC North East (England), TLD North West (England), TLF East Midlands (England), TLG West Midlands (England), TLH East (England), TLJ South East (England), TLK South West (England), TLL Wales, TLM Scotland | ## CPV Codes ### Divisions - 38 - Laboratory, optical and precision equipments (excl. glasses) - 44 - Construction structures and materials; auxiliary products to construction (except electric apparatus) - 45 - Construction work - 48 - Software package and information systems - 50 - Repair and maintenance services - 65 - Public utilities - 71 - Architectural, construction, engineering and inspection services - 72 - IT services: consulting, software development, Internet and support - 79 - Business services: law, marketing, consulting, recruitment, printing and security ### Codes - 38421100 - Water meters - 44163100 - Pipes - 44482200 - Fire hydrants - 45232410 - Sewerage work - 45232450 - Drainage construction works - 45246400 - Flood-prevention works - 45246410 - Flood-defences maintenance works - 48444100 - Billing system - 50411100 - Repair and maintenance services of water meters - 50413200 - Repair and maintenance services of firefighting equipment - 65110000 - Water distribution - 71314200 - Energy-management services - 71900000 - Laboratory services - 72253000 - Helpdesk and support services - 79112100 - Stakeholders representation services - 79993000 - Building and facilities management services ## Release History - 7 Jan 2026 at 17:08 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/001236-2026 - 3 Oct 2025 at 14:54 - Planning - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/062271-2025 - 22 Aug 2025 at 12:56 - PlanningUpdate - UK3 - Planned Procurement Notice - https://www.find-tender.service.gov.uk/Notice/050898-2025 - 22 Aug 2025 at 12:54 - Planning - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/050897-2025 - 22 Aug 2025 at 12:51 - Planning - UK3 - Planned Procurement Notice - https://www.find-tender.service.gov.uk/Notice/050892-2025 - 18 Aug 2025 at 14:23 - PlanningUpdate - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/049566-2025 - 14 Aug 2025 at 15:11 - Planning - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/048879-2025 - 19 May 2025 at 08:53 - PlanningUpdate - UK1 - Pipeline Notice - https://www.find-tender.service.gov.uk/Notice/022461-2025 - 13 May 2025 at 13:28 - Planning - UK1 - Pipeline Notice - https://www.find-tender.service.gov.uk/Notice/020872-2025 - 15 Apr 2025 at 10:44 - Planning - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/015196-2025 ## Documents - https://www.find-tender.service.gov.uk/Notice/001236-2026 7th January 2026 - Tender notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/062271-2025 3rd October 2025 - Preliminary market engagement notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/050898-2025 22nd August 2025 - Planned procurement notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/050897-2025 22nd August 2025 - Preliminary market engagement notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/050892-2025 22nd August 2025 - Planned procurement notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/049566-2025 18th August 2025 - Preliminary market engagement notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/048879-2025 14th August 2025 - Preliminary market engagement notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/022461-2025 19th May 2025 - Pipeline notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/020872-2025 13th May 2025 - Pipeline notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/015196-2025 15th April 2025 - Preliminary market engagement notice on Find a Tender ## Notice URLs - https://contracts.mod.uk/esop/toolkit/opportunity/ns/60136/detail.si?isOnModification=false&_ncp=1757597434013.143919-2 - https://www.legislation.gov.uk/ukpga/2023/54/contents ## 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-050318. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-050318.json.