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Water Supply: Standards

Asked by Martin WrigleyLiberal DemocratDepartment for Environment, Food and Rural AffairsTabled Answered 9 December 2025UIN 95914

The question

To ask the Secretary of State for Environment, Food and Rural Affairs, pursuant to the Answer of 22 October 2025 to Question 82811 on Water Supply: Standards, whether she has assessed the adequacy of issuing non-mandatory guidance for private water supply risk assessments.

Answered by Emma Hardy

The Drinking Water Inspectorate (DWI) publishes and maintains a suite of risk assessment tools on its website. Risk assessments must meet the requirements of European standard EN 15975-2 entitled "Security of Drinking Water Supply - Guidelines for Risk and Crisis Management – Risk Management" which provides further guidance and if local authorities have any questions on performing risk assessments, they can contact the DWI who provide technical and scientific advice.

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