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Environmental Safety Case: General Tech inc Geological & Hydrogeological

Nuclear Waste Services Limited

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Key dates and value

Status: Closed
Submission deadline: 7 Sept 2026
Published: 27 Jul 2026
Estimated value: £13.7m
Contract start: 1 Mar 2027
Contract end: 28 Feb 2030
Location: Calderbridge, Seascale, North West England
Notice type: UK4

Overview

Nuclear Waste Services (NWS), the Client, through its Waste Services line of business, is procuring an open framework for Environmental Safety Case. The Client requires specialist technical services to support the application of and further development of its ESC. This involves the provision of suitably qualified people to support the delivery of scoped packages of work to support NWS’ ESC team in fulfilling its obligations as set out by the regulator and undertaking the forward work programme. The scope of work under this framework involves the provision of support to the ESC team in undertaking the technical activities identified below. Emerging requirements may be identified, noting that integrating tools and techniques of the LLWR and the GDF ESC Safety Cases will be an objective for NWS in the coming years. An Environmental Safety Case (ESC) is a comprehensive set of reports concerning the environmental safety of the disposal of solid radioactive waste, underpinned by a structured collection of arguments and scientific evidence. The ESC is an integral part of the Low Level Waste Repository (LLWR) site Permit to dispose of radioactive waste and demonstrates that it is safe to continue to dispose of low-level waste at the site. The extended operational lifetime of the facility, the continued disposal of waste into future vaults and the subsequent closure and capping of the LLWR, are all dependent upon the acceptance of the ESC by the Environment Agency. ITT documents are available on Atamis: https://atamis-2464.my.site.com/s/Welcome

CPV codes

90520000 Radioactive-, toxic-, medical- and hazardous waste services
90721000 Environmental safety services
90521300 Disposal of radioactive waste
90521510 Packaging of low level nuclear waste
71351000 Geological, geophysical and other scientific prospecting services
90740000 Pollutants tracking and monitoring and rehabilitation services
90714000 Environmental auditing
90711000 Environmental impact assessment other than for construction
98113100 Nuclear safety services

About the buyer

Nuclear Waste Services Limited has published 14 tender notices since 27 Oct 2023, with a combined advertised value of £432m. 6 of them are currently open.

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