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PROCUREMENT OPPORTUNITY

Defence Water Services Programme - UK4

Defence Infrastructure Organisation · Tender notice on Find a Tender

Tender information last checkedLast checked 5 Oct 2026, 08:16.

Opportunity overview

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.

Classification

  • CPV38421100 — Water meters
  • CPV44163100 — Pipes
  • CPV44482200 — Fire hydrants
  • CPV45232410 — Sewerage work
  • CPV45232450 — Drainage construction works
  • CPV45246400 — Flood-prevention works
  • CPV45246410 — Flood-defences maintenance works
  • CPV48444100 — Billing system
  • CPV50411100 — Repair and maintenance services of water meters
  • CPV50413200 — Repair and maintenance services of firefighting equipment
  • CPV65110000 — Water distribution
  • CPV71314200 — Energy-management services
  • CPV71900000 — Laboratory services
  • CPV72253000 — Helpdesk and support services
  • CPV79112100 — Stakeholders representation services
  • CPV79993000 — Building and facilities management services

Lots

  • Lot 1£2.3bn

Documents and notices

Published notice details

Additional information from the published procurement release. Fields appear only when supplied by the source; check the original notice and tender documents before acting.

Scope, procedure and submissions

Id
714602450
Status
active
Procurement Method
selective
Procurement Method Details
Competitive flexible procedure
Main Procurement Category
services
Above Threshold
Yes
Expression Of Interest Deadline
18 Mar 2026, 12:00
Published risks
The following are known risks which, if they were to materialise, could prevent the satisfactory performance of the Contract for the Authority and require a subsequent modification to the contract under paragraph 5 of Schedule 8 of the Procurement Act 2023. The Authority reserves the right to amend the scope, timeline and contract value accordingly without a further procurement procedure, under the grounds permitted for materialisation of a known risk within the Procurement Act 2023. External Standards and Policy Changes Changes to external standards, regulations, or policies, beyond the Authority’s control including changes in allowable funding may necessitate contract amendments. These could result in unforeseen impacts on delivery timelines and associated costs. Geopolitical and Defence Landscape Shifts Evolving geopolitical conditions, shifting Defence priorities, or changes in the nature of conflict may alter the demand profile. The supplier must remain adaptable to accommodate fluctuations in service requirements.   Water Supply Disruption or Contamination Events Any discovery of contamination or limited access to potable water which could disrupt operations and affect the usability of buildings or sites. This may lead to unanticipated costs and potential contract modifications.

Legal basis

Id
2023/54
Scheme
UKPGA

Procedure

Features
This tender notice is for the award of a public contract through a competitive flexible procedure in accordance with section 20(1) and (2)(b) of the Procurement Act 2023. Potential Providers must complete the Conflict-of-Interest declaration that will be made available as part of the Procurement Specific Questionnaire (PSQ) supporting documents and to inform the Authority whether they have identified from this review any actual, potential or perceived conflicts of interest arising from the Potential Provider or any other identified party's participation in the procurement. Please note that any incumbent supplier providing Water and Wastewater (WWW) Services and or supporting the DWSP or Aquatrine that is shortlisted to participate in the Tender Process will be required to sign the Ethical Walls Agreement made available as part of the PSQ supporting documents. Failure to do so may result in the Potential Provider being excluded from further participation in the procurement process. The PSQ (including Conditions of Participation) is available within the Defence Sourcing Portal (DSP) and will be used to down select to no more than 6 suppliers, who will be invited to the next stage of the Tender process. This will also include the assessment of whether a supplier, its connected persons, associated persons or any intended subcontractors are excluded or excludable persons and whether the suppliers are UK suppliers under the Procurement Act 2023. A clarification process will be used during the PSQ period to allow suppliers to seek clarification from the Authority. All clarification questions must go through the DSP, further information regarding this process can be found in the DWSP PSQ guidance document. Within the PSQ there are a mix of questions: Pass/Fail and scored questions. A Fail in a Pass/Fail question will result in exclusion and further evaluation will not take place. For those suppliers who Pass all the Pass/Fail questions, their overall technical score will determine their ranking. Those suppliers ranking in the top 6 will be Invited to Tender. Where there is a tie at Positions 6 and 7 (or more), the decision on which supplier(s) will be Invited to the next stage will be based on the 4 scored questions at 3.9 (Technical Ability and Project Experience) of the PSQ, the process will be as followed: 1. Initially on the highest score on question 3.9.1 of the Technical Conditions of Participation. 2. Where this still results in a tie, the decision will be based on the highest score for question 3.9.2. 3. Where this still results in a tie, the decision will be based on the highest score for question 3.9.3. 4. Where this still results in a tie, the decision will be based on the highest score for question 3.9.4. If this sequential process does not result in a clear 6th place, then the Authority reserves the right to proceed to tender with additional suppliers who share equal 6th position. Following the down selection, the down selected Bidders will be given access to the AWARD system. Tender documentation will be available on AWARD at the appropriate stages. A clarification process will be used during the tendering period to allow Bidder the opportunity to seek clarification from the Authority. A summary of the award criteria will be explained further in the Tender documentation. The Authority reserves the right to refine the award criteria before and during the Tender period in accordance with section 24 of the Procurement Act 2023. This may include revision to the scored quality questions including revision to the weightings. The following supplementary processes may be used by the Authority (further details are set out in the additional tender documentation): - Co-create workshops - where bidders have an opportunity to comment on key Tender documentation prior to the invitation to submit outline solutions. - Invitation to Submit Outline Solutions (ISOS) - this may include a down select to 3 tenderers, details of the criteria for down-select will be included in the Tender documentation. - Dialogue sessions will be held with each tenderer – this is for the Authority to understand the proposed outline solution and where necessary request further explanation. - Supplier presentations / site visits / other collaborative behavioural assessments – may take place during the Tender, and Tender Evaluation. - Invitation to Submit Detailed Solution (ISDS). - Clarifications – The Authority to confirm understanding during the tender evaluation period - Best and Final Offer - Preferred Supplier Stage The Authority reserves the right to amend the procurement, where such amendment would not be substantial, as follows, including and not limited to; - amendments to the tender documents which may provide clarification - refining the specification as the competitive flexible procedure progresses - reduce and or increase timescales. If any amendments are made, the Authority will consider whether any applicable tender deadlines should be revised, and whether any tender documents or notices need to be re-issued. Under Section 43 of the Procurement Act 2023, the Authority reserves the right to Direct Award should there be no suitable tenders or requests to participate be received.

Submission terms

Electronic Submission Policy
allowed

Languages

en

Enquiry period

Ends
11 Mar 2026, 12:00

Expected award period

Ends
17 Aug 2027, 23:59

Lot Details

No Lots Division Rationale
The Authority is looking to deliver all its WWW Services across the England and Wales estate, this will be through a single supplier holistic approach to enable consistency and the ability to react to the changes in the MOD demand, therefore lots do not support this approach.

Contract terms

Financial Terms
All payments will be made through the Authority's Contracting, Purchasing & Finance (CP&F) system and will be in accordance with future contractual arrangements.

Lots and requirements

Entry 1
Id
1
Status
active
Has Renewal
Yes

Value

Including VAT
2,760,000,000
Amount
2,300,000,000
Currency
GBP

Award criteria

Weighting Description
The Authority intend to use a Willingness to Pay (WtP) Most Advantageous Tender (MAT) methodology. WtP does not use traditional weightings, instead, the Authority will determine a single variable that reflects its willingness to pay (or not pay) for incremental delivery improvments (i.e. each point increase in the quality score). This WtP gradient is known as the Cost of One Point Increase in Score (COPIS). The COPIS will be provided as part of the Tender documentation. The Authority intend to use a number of scored weighted quality questions. The headings of the scored weighted quality questions may include Resourcing to manage, deliver and assure services; Mobilisation and Transition; Helpdesk; Sustainability; Data, Management Information and Business Processes; Collaboration; Social Value, other questions related to the required services as deemed necessary by the Authority. Further information will be provided as part of the Tender Documentation.

Criteria

Criterion 1
Type
cost
Name
Cost
Description
Cost - The Authority intend to use a Willingness to Pay (WtP) Most Advantageous Tender (MAT) methodology. WtP does not use traditional weightings, instead, the Authority will determine a single variable that reflects its willingness to pay (or not pay) for incremental delivery improvements (i.e. each point increase in the quality score). This WtP gradient is known as the Cost of One Point Increase in Score (COPIS). The COPIS will be provided as part of the Tender documentation.
Criterion 2
Type
quality
Name
Quality
Description
The Authority intend to use a number of scored weighted quality questions. The headings of the scored weighted quality questions may include Resourcing to manage, deliver and assure services; Mobilisation and Transition; Helpdesk; Sustainability; Data, Management Information and Business Processes; Collaboration; Social Value, other questions related to the required services as deemed necessary by the Authority. Further information will be provided as part of the Tender Documentation.

Second Stage

Maximum Candidates
6

Selection criteria

Criteria

Criterion 1
Description
As described in the PSQ Guidance document on the Defence Sourcing Portal.
For Reduction
Yes

Contract period

Starts
1 Feb 2028, 00:00
Ends
31 Jan 2035, 23:59
Max Extent Date
31 Jan 2038, 23:59

Renewal

Description
There is an option to extend for up to three years (3) which may be taken at the Authority's discretion.

Items and delivery

Item 1
Id
1
Related Lot
1

Additional Classifications

Entry 1
Scheme
CPV
Id
65110000
Description
Water distribution
Entry 2
Scheme
CPV
Id
50413200
Description
Repair and maintenance services of firefighting equipment
Entry 3
Scheme
CPV
Id
50411100
Description
Repair and maintenance services of water meters
Entry 4
Scheme
CPV
Id
45232450
Description
Drainage construction works
Entry 5
Scheme
CPV
Id
71900000
Description
Laboratory services
Entry 6
Scheme
CPV
Id
44482200
Description
Fire hydrants
Entry 7
Scheme
CPV
Id
48444100
Description
Billing system
Entry 8
Scheme
CPV
Id
44163100
Description
Pipes
Entry 9
Scheme
CPV
Id
79993000
Description
Building and facilities management services
Entry 10
Scheme
CPV
Id
38421100
Description
Water meters
Entry 11
Scheme
CPV
Id
45232410
Description
Sewerage work
Entry 12
Scheme
CPV
Id
45246400
Description
Flood-prevention works
Entry 13
Scheme
CPV
Id
45246410
Description
Flood-defences maintenance works
Entry 14
Scheme
CPV
Id
72253000
Description
Helpdesk and support services
Entry 15
Scheme
CPV
Id
79112100
Description
Stakeholders representation services
Entry 16
Scheme
CPV
Id
71314200
Description
Energy-management services

Delivery locations

Entry 1
Region
UKL
Country
GB
Country Name
United Kingdom
Entry 2
Region
UKC
Country
GB
Country Name
United Kingdom
Entry 3
Region
UKD
Country
GB
Country Name
United Kingdom
Entry 4
Region
UKF
Country
GB
Country Name
United Kingdom
Entry 5
Region
UKG
Country
GB
Country Name
United Kingdom
Entry 6
Region
UKJ
Country
GB
Country Name
United Kingdom
Entry 7
Region
UKK
Country
GB
Country Name
United Kingdom
Entry 8
Region
UKH
Country
GB
Country Name
United Kingdom

Published documents

Entry 1
Id
conflictOfInterest
Document Type
conflictOfInterest
Description
Not published
Entry 2
Id
future
Document Type
biddingDocuments
Access Details
All PSQ and Tender documentation will be shared via DSP. Tender documentation will only be available to downselected bidders. The Authority will additionally provide access to a Virtual Data Room in which to share additional data to support Tender preparation to the downselected bidders at the Tender stage.
Entry 3
Id
001236-2026
Document Type
tenderNotice
Notice Type
UK4
Description
Tender notice on Find a Tender
Published
7 Jan 2026, 17:08
Format
text/html

Buyer, suppliers and contacts

Organisation 1
Name
Defence Infrastructure Organisation
Id
GB-PPON-PPWG-8368-RJMG

Identifier

Scheme
GB-PPON
Id
PPWG-8368-RJMG

Address

Street Address
St George's House, DMS Whittington
Locality
Lichfield
Postal Code
WS149PY
Country
GB
Country Name
United Kingdom
Region
UKG24

Contact

Roles

buyer

Details

Classifications

Entry 1
Scheme
UK_CA_TYPE
Id
publicAuthorityCentralGovernment
Description
Public authority - central government

Recorded locations

  • Buyer location · Lichfield · UKG24 · WS149PY · United Kingdom
  • Delivery location · UKC · United Kingdom
  • Delivery location · UKD · United Kingdom
  • Delivery location · UKF · United Kingdom
  • Delivery location · UKG · United Kingdom
  • Delivery location · UKH · United Kingdom
  • Delivery location · UKJ · United Kingdom
  • Delivery location · UKK · United Kingdom
  • Delivery location · UKL · United Kingdom

Notice and amendment history

1 published notice version reviewed by ProcuraAxis.

1 VERSION
  1. 001236-2026Tender notice on Find a Tender ·