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Defence Water Services Programme - UK4

Defence Infrastructure Organisation

This public procurement record has 10 releases in its history.

Tender

07 Jan 2026 at 17:08

UK4 - Tender Notice
Planning

03 Oct 2025 at 15:54

UK2 - Preliminary Market Engagement Notice
PlanningUpdate

22 Aug 2025 at 13:56

UK3 - Planned Procurement Notice
Planning

22 Aug 2025 at 13:54

UK2 - Preliminary Market Engagement Notice
Planning

22 Aug 2025 at 13:51

UK3 - Planned Procurement Notice
PlanningUpdate

18 Aug 2025 at 15:23

UK2 - Preliminary Market Engagement Notice
Planning

14 Aug 2025 at 16:11

UK2 - Preliminary Market Engagement Notice
PlanningUpdate

19 May 2025 at 09:53

UK1 - Pipeline Notice
Planning

13 May 2025 at 14:28

UK1 - Pipeline Notice
Planning

15 Apr 2025 at 11:44

UK2 - Preliminary Market Engagement Notice
Summary of the contracting process

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.

How relevant is this notice?

Notice Information

Notice Title

Defence Water Services Programme - UK4

Notice Description

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

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-050318
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/001236-2026
Current Stage
Tender
All Stages
Planning, Tender

Procurement Classification

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

Common Procurement Vocabulary (CPV)

CPV 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

CPV 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

Notice Value(s)

Tender Value
£2,300,000,000 £1B-£10B
Lots Value
£2,300,000,000 £1B-£10B
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
7 Jan 20267 months ago
Submission Deadline
11 Mar 2026Expired
Future Notice Date
7 Oct 2025Expired
Award Date
Not specified
Contract Period
1 Feb 2028 - 31 Jan 2035 Over 5 years
Recurrence
Not specified

Notice Status

Tender Status
Active
Lots Status
Active
Awards Status
Not Specified
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
Defence Infrastructure Organisation
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
LICHFIELD
Postcode
WS14 9PY
Postcode Area
Walsall
Country
England
Major Region (ITL 1)
TLG West Midlands (England)
Basic Region (ITL 2)
TLG2 Shropshire and Staffordshire
Small Region (ITL 3)
TLG24 Staffordshire CC
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
Local Authority
Lichfield
Electoral Ward
Whittington & Streethay
Westminster Constituency
Tamworth

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

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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.

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