LLW Repository Ltd trading as Nuclear Waste Services has a scope of work for the "Southern Trenches Interim Membrane (STIM) Contract", which forms part of the Repository Development portfolio of work at the LLW Repository facility near Drigg Village in Cumbria, England.

The work consists of civil engineering works associated with installing an engineered interim trench cap over the Southern Trenches.

In summary, the scope is to provide labour, equipment, materials, project management and supervision to complete the work.

Work also includes establishment and maintenance of site offices, welfare and all associated temporary works.

Repository Development is a long-term portfolio of works that will provide disposal capacity and protection of low-level nuclear waste over the next 107 years, or until the end life of the Repository Site.

In the shorter term the portfolio, over the next 15 years will install closure engineering works for short and long-term environmental protection for wastes currently disposed in Vault 8 and the adjacent trenches.

This scope of works has been previously referred to as Repository Development Programme - Tranche 1 Main Civils and has been communicated to the market in early 2022.

The works over the next 15 years have been considered, and optimised detailed designs completed.

More recently, the delivery strategy for the works has been further developed and subsequently split into projects that deliver a key benefit to the closure of Vault 8 and adjacent trenches.

The original scope of works was shared in January 2023 (as summarised in the 'Additional Information' section in the attachment and via the following link: https://www.contractsfinder.service.gov.uk/Notice/c97ae723-549e-4125-bf7c-12a4b876ff3a) In recent months this scope has been amended.

Rail delivery of imported bulk aggregates and soils will be carried out by Nuclear Transport Services (NTS) on behalf of the Client.

The Client will enter into a contract for rail deliveries with NTS, the scope of which will be limited to transport between the agreed loading point and unloading point at LLWR rail sidings.

The Contractor shall have no contractual arrangements with NTS.

A copy of the draft scope is located in the documents area of the Atamis eSourcing system (https://atamis-2464.my.site.com/s/Welcome) and is subject to final approvals.

You can find the scope by clicking on "View our live opportunities" and searching for "PIN for RD - South Trench Cap Membrane Replacement Project (Scope Amendment)" with the record reference C15697.

Subject to the final approvals, an Invitation to Participate (ITP) will be issued in the coming weeks.

A separate Contract Notice will be published in relation to the ITP.