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Latest documents

• Vacancy – NIS Inspector

  We are hiring – join our team. We are looking for an Inspector – Network and Information Systems (Cyber Security).

  • Published 14:58:18 BST 9 October 2025
• 30 September 2025 – Prosecution of South West Water Limited for s70(1) offences under the Water Industry Act 1991

  The Drinking Water Inspectorate issued a press release following its investigation into the Cryptosporidiosis outbreak event in the Brixham area in 2024: DWI press releases – Drinking Water Inspectorate.

  • Published 15:22:46 BST 30 September 2025
• Publication of research report “Disinfection Technology and Alternative Disinfection for Commercial Water”

  This project, undertaken by WRc, provided DWI with a better understanding of the disinfection technologies currently in use in commercial activities across England and Wales, including alternative technologies, and their suitability for ensuring safe drinking water. The full report and executive summary can be viewed from the Completed Research page.

  • Published 10:11:38 BST 30 September 2025
• Independent Water Commission – Review of the water sector

  The Inspectorate has published a response to the final report of the Independent Water Commission’s review of the water sector. Independent Water Commission: review of the water sector – final report – DWI Response.

  • Published 14:29:35 BST 22 July 2025
• Drinking Water 2024 – Public Supplies Wales – Annual Report Published

  We have published Drinking Water 2024 – Public Supplies Wales Annual Report on our website.

  • Published 13:07:35 BST 16 July 2025
• Drinking Water 2024 – Public Supplies England – Annual Report Published

  We have published Drinking Water 2024 – Public Supplies England Annual Report on our website.

  • Published 12:40:53 BST 10 July 2025
• Independent Water Commission – Review of the water sector

  The Inspectorate has published a response to the Independent Water Commission’s review of the water sector. Independent Water Commission: review of the water sector – DWI Summary Response – Drinking Water Inspectorate

  • Published 10:21:37 BST 3 June 2025
• Publication of research report “Bench-Scale Water Treatment Efficacy Study of PFAS Removal”

  DWI and UKWIR jointly funded research into a Bench-scale water treatment efficacy study of PFAS removal. The full report, executive summary and the preliminary review can be found on our Completed Research pages.

  • Published 12:48:35 BST 29 April 2025
• Advisory group report published

  Drinking water quality standards in England and Wales: Advisory group recommendations and full report has been published on our website.

  • Published 15:34:59 GMT 26 February 2025
• Chlorine podcast published

  We have published our second On Tap podcast on our website.

  • Published 10:30:53 BST 24 October 2024
• Lead podcast published

  We have published our first On Tap podcast on our website.

  • Published 11:35:00 BST 20 September 2024