# Support on Accident Chemistry for UK HPR1000

> Contract award record from UK public-sector procurement sources.

## Key facts

- Public buyer: [Health & Safety Executive](/buyers/health-safety-executive/contract-awards)
- Contract winner: [Atkins Ltd](/contract-winners/atkins/public-sector-contract-awards)
- Award value: £82,185
- Tender value: £82,185
- Award date: 24 April 2019
- Published: 21 May 2019
- Contract start: 29 April 2019
- Contract end: 29 February 2020
- Stage: awarded
- Procurement category: services
- Notice ID: b7c7b756-9952-4e49-8147-ff91e4eff07c-290506
- OCID: ocds-b5fd17-efb73f94-b114-4779-943d-1106b9637ed0

## Description

The purposes of this contract are to provide ONR with independent advice on the safety significance of relevant accident chemistry effects, which are applicable to the UK HPR1000 design\. This should include consideration of the latest standards, guidance and relevant good practice regarding the accident chemistry of pressurised water reactors \(PWRs\)\. Furthermore, the contractor will need to provide on-going expert advice and support to ONR in its assessment of the accident chemistry aspects of the UK HPR1000 generic design and safety case during Step 3 of GDA\. During Step 3 of GDA, the main focus of this work will be fission product behaviour and mitigation, LOCA and SG Tube Rupture, however, it is understood that this will include, by necessity, some reference to the other chemistry-relevant aspects considered below\. The contractor is required to identify, evaluate and collate the latest available guidance, standards and relevant good practice \(RGP\), as applicable to the accident chemistry of PWRs\. ONR commissioned similar studies during the GDAs of UK EPR™ and AP1000®\. They should be considered as the baseline for this activity\. The TSC is expected to take that work as one of the inputs and together with their own skills, knowledge, experience and resources etc\., focus on providing either brief confirmatory statements regarding the current applicability of that already established baseline, or explain any gaps between the latest approaches in PWR accident chemistry and the baseline, including commentary on their likely overall significance, as appropriate\.

## Related contract awards

- [HSE People Strategy](/contracts/ocds-b5fd17-5f418ff8-8ff6-4a97-bf61-1b7af2cf32b4): Health & Safety Executive
- [Rubrik - Data Backup Solutions](/contracts/ocds-b5fd17-c8fbb696-d360-478b-96be-b2401d1402c2): Health & Safety Executive
- [HSE Research, Evaluation & Insight \(REI\) Framework - Lot B](/contracts/ocds-b5fd17-d01ab489-0330-4c15-bef4-9ca2932d6287): Health & Safety Executive
- [Expert Support and Alternative Solutions Framework](/contracts/ocds-b5fd17-270763bd-8861-4bfe-a1c7-e5bff69f6400): Nuclear Waste Services Limited
- [Provision of Environmental advisory support](/contracts/ocds-b5fd17-ac7db216-9627-41dd-b2a4-b356969120d4): Nuclear Restoration Services Limited \(Dounreay\)
- [Homes England - multi-disciplinary - detailed drainage application - Croftlands, Ulverston](/contracts/ocds-b5fd17-4f9efc05-d3f3-47a1-8ab4-9571b3525bdf): Homes England \(the name adopted by the Homes and Communities Agency\)

## Source

[View the original notice on Contracts Finder](https://www.contractsfinder.service.gov.uk/Notice/b7c7b756-9952-4e49-8147-ff91e4eff07c-290506)