The Private Supply Regulations require local authorities to maintain a record of the total number of private water supplies within its area. Further guidance on these obligations can be found here.
Templates and guidance
Local authorities are required to provide certain information relating to private water supplies to the Secretary of State and Welsh Ministers (in practice the Inspectorate). The next submission of data is due on 31 January 2025, for records relating to supplies in their area during 2024.
The information required to be submitted by local authorities is set out below.
Template for local authority 2024 data returns, to be completed and submitted by 31 January 2025.
Please do not use older versions of this template.
MS Excel Spreadsheet, 644KB
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This is a blank Excel file, which contains the following four worksheets that should be completed with data on all private water supplies in the local authority area, as follows:
i) Contacts Worksheet – All local authorities should provide relevant contact details, including where: (a); a local authority does not have any private water supplies; (b); a local authority only has private distribution systems and there is no other information available on these supplies at the time of making the data submission.
ii) Details Worksheet – Details of each private supply including private distribution systems (where the details are known). The full details of single domestic dwellings should be included, whether or not samples or risk assessments have been carried out.
iii) Data Worksheet – Test results for each sample taken from a private supply (including private distribution systems) from the 1 January to 31 December of the same year.
iv) Total Single Dwellings Worksheet – A total number of single domestic dwellings in the local authority’s area.
An updated specification and guide for the data return explaining what information is needed and the rules for each cell.
PDF, 360KB
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Instructions for registering with Government Gateway and managing your account and its members
PDF, 3MB
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Instructions for submitting the annual data return by loading the return into the Inspectorate’s database.
PDF, 2MB
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Answers to frequently asked questions.
PDF, 185KB
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