Notice Information
Notice Title
Low Level Waste Repository (LLWR) Vault Optimisation and Capping Delivery
Notice Description
Nuclear Waste Services (NWS) is seeking a Contractor to provide all necessary Design & Engineering, Labour, Equipment, Plant & Materials to undertake all works associated with the delivery of Vault Optimisation and Capping Delivery. The contractor should have a proven track record in handling large scale Earthworks projects, equipped with necessary machinery and expertise to ensure the project is completed efficiently and on schedule. Nuclear Waste Services operates the Low-Level Waste Repository (LLWR) Site in West Cumbria on behalf of the Nuclear Decommissioning Authority. The LLWR Site is the national disposal facility for Low Level Waste (LLW) arising from the nuclear industry and wider industries, such as medical and defence. Protecting and developing the Repository's radioactive waste disposal capability is a long-term programme of works, over the next 100+ years, that will provide future disposal facilities and protection of people and the environment from the disposed waste through to closure of the Repository Site. In the shorter term, over the next 15 years, the focus is on installing closure engineering works for long-term environmental protection from the wastes currently disposed of in Vault 8 and the adjacent legacy disposal trenches as well as constructing additional disposal capacity in the form of new LLW vaults. The project under NWS covers the following packages of works: - Final Capping (provide an engineered protective cover) over all the Low Level Waste that has been disposed of in the trenches and vaults. - Design of an extension to the existing disposal Vault (V9), retaining wall to allow partial closure seal of V9, new Leachate Management System and weather protection warehousing for HHISO containers awaiting disposal. - Construction of an extension to the existing LLW disposal Vault (V9), retaining wall, partial closure seal of V9, new Leachate Management System and weather protection warehousing for HHISO containers awaiting disposal. - Design of an Interim Cap over the closed section of Vault 9. - Construction of an Interim Cap over the Low Level Waste that has been disposed in Vault 9. Works include but is not limited to; - Earthworks, including excavation and Backfill work - Provision of associated plant - Site Clearance - Groundworks - Piling - Aggregates - Demolition - Drainage - Engineering & Construction Works - Design - Land remediation The route to market decision will be based on ongoing engagement and feedback from the supply chain as well as ongoing development of the NWS procurement documents.
Planning Information
A virtual market engagement event is planned for Wednesday 5th November 2025 where we will confirm scope details, contract vehicle, duration, options under NEC, and sequencing of works. Suppliers are encouraged to express an interest in attending the event to the email address VOCDProcurement@nuclearwasteservices.uk by COP Monday 3rd November 2025. Potential follow up 1 to 1’s may be held in the Warrington or Cumbria area in due course.
Notice Details
Publication & Lifecycle
- Open Contracting ID
- ocds-h6vhtk-055c45
- Publication Source
- Find A Tender Service
- Latest Notice
- https://www.find-tender.service.gov.uk/Notice/068240-2025
- Current Stage
- Planning
- All Stages
- Planning
Procurement Classification
- Notice Type
- UK2 - Preliminary Market Engagement Notice
- Procurement Type
- Framework
- Procurement Category
- Works
- Procurement Method
- Not Specified
- Procurement Method Details
- Not specified
- Tender Suitability
- Not specified
- Awardee Scale
- Not specified
Common Procurement Vocabulary (CPV)
- CPV Divisions
44 - Construction structures and materials; auxiliary products to construction (except electric apparatus)
45 - Construction work
71 - Architectural, construction, engineering and inspection services
-
- CPV Codes
44000000 - Construction structures and materials; auxiliary products to construction (except electric apparatus)
44900000 - Stone for construction, limestone, gypsum and slate
45000000 - Construction work
45100000 - Site preparation work
45112000 - Excavating and earthmoving work
45112300 - Infill and land-reclamation work
45112500 - Earthmoving work
45200000 - Works for complete or part construction and civil engineering work
45220000 - Engineering works and construction works
71000000 - Architectural, construction, engineering and inspection services
71320000 - Engineering design services
71322000 - Engineering design services for the construction of civil engineering works
Notice Value(s)
- Tender Value
- £300,000,000 £100M-£1B
- Lots Value
- Not specified
- Awards Value
- Not specified
- Contracts Value
- Not specified
Notice Dates
- Publication Date
- 24 Oct 20254 months ago
- Submission Deadline
- Not specified
- Future Notice Date
- 24 Sep 20268 months to go
- Award Date
- Not specified
- Contract Period
- 30 Sep 2027 - 10 Dec 2037 Over 5 years
- Recurrence
- Not specified
Notice Status
- Tender Status
- Planned
- Lots Status
- Planned
- Awards Status
- Not Specified
- Contracts Status
- Not Specified
Buyer & Supplier
Contracting Authority (Buyer)
- Main Buyer
- NUCLEAR WASTE SERVICES LIMITED
- Contact Name
- Emma Stockdale
- Contact Email
- emma.stockdale@nuclearwasteservices.uk
- Contact Phone
- Not specified
Buyer Location
- Locality
- CALDERBRIDGE, SEASCALE
- Postcode
- CA20 1DB
- Post Town
- Carlisle
- Country
- England
-
- Major Region (ITL 1)
- TLD North West (England)
- Basic Region (ITL 2)
- TLD1 Cumbria
- Small Region (ITL 3)
- TLD13 Cumberland
- Delivery Location
- TLD11 West Cumbria
-
- Local Authority
- Cumberland
- Electoral Ward
- Gosforth
- Westminster Constituency
- Whitehaven and Workington
Further Information
Notice Documents
-
https://www.find-tender.service.gov.uk/Notice/068240-2025
24th October 2025 - Preliminary market engagement notice on Find a Tender -
https://www.find-tender.service.gov.uk/Notice/057045-2025
16th September 2025 - Preliminary market engagement notice on Find a Tender -
https://www.find-tender.service.gov.uk/Notice/041533-2025
21st July 2025 - Preliminary market engagement notice on Find a Tender -
https://www.find-tender.service.gov.uk/Notice/038699-2025
9th July 2025 - Pipeline notice on Find a Tender
Open Contracting Data Standard (OCDS)
View full OCDS Record for this contracting process
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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