# Review of Radon and Tritium in Drinking Water in the UK

> Tender notice from UK public-sector procurement sources.

## Key facts

- Public buyer: [DEFRA](/buyers/defra/contract-awards)
- Published: 1 March 2023
- Planned start: 8 May 2023
- Planned end: 8 February 2024
- Stage: open_tender
- Procurement category: services
- Notice ID: df755e16-8cc5-4923-8ca1-6bd9acaf9291-619955
- OCID: ocds-b5fd17-b05bc56e-6b85-4896-81d4-d60ea61a054d

## Description

The aim of this research project is to update the existing hazard maps, that were originally published in 2015, for the probability of exceeding specific radon levels in water\. In addition, the project aims to collate and review existing knowledge, research and data on the areas of risk of tritium in England and Wales and develop a hazard map for the risk of exceeding specific tritium levels in water\. The findings of this research project will be used to inform our regulatory position in relation to radon and tritium in public supplies and used to update our private water supplies guidance on radon and tritium\. This project will provide an opportunity to update the evidence base from which to evaluate the regulatory standards in relation to radon and tritium\.

## Related contract awards

- [Mids - AOMR Lot 2 - Works Arising from Hydrometric Asset Surveys 2026/2027](/contracts/ocds-b5fd17-7df7db6b-a6f2-42da-bbd6-9ac45210d862): DEFRA
- [South East - FRAM lot 9c - Client Support Services - Competitive Tender - Mott MacDonald Limited](/contracts/ocds-b5fd17-eacb09a0-dc7d-4dae-a39c-04320221a4cd): Defra
- [South East - FRAM lot 9c - Client Support Services - Competitive Tender - AECOM](/contracts/ocds-b5fd17-2cdc927a-7eb6-45a7-8a1c-506468289da9): Defra

## Source

[View the original notice on Contracts Finder](https://www.contractsfinder.service.gov.uk/Notice/df755e16-8cc5-4923-8ca1-6bd9acaf9291-619955)