• StreamLine

    We are excited to launch StreamLine, the regulatory advice service for innovators and businesses in England and Wales. StreamLine is run jointly by the Drinking Water Inspectorate, the Environment Agency and Ofwat to support innovation and provide advice to help innovators and businesses understand and navigate through water sector regulations.

  • Drinking water 2021 – Quarter 4 published

    We have published CIR 2021 – Quarter 4.

  • Catchment

  • 200773 – Principal Inspector – Network and Information Systems (NIS)

    We are searching for a Principal Inspector (NIS). The closing date is 29 May 2022. Apply here: Principal Inspector – Network and Information Systems (NIS) – Drinking Water Inspectorate – Civil Service Jobs – GOV.UK

  • 206010 – Principal Inspector (2 Posts)

    We are seeking two Principal Inspectors to support the Senior Management Team (SMT) in the delivery of the Drinking Water Inspectorate’s vision and strategic objectives. Apply here: Principal Inspector (Grade 7) – Drinking Water Inspectorate – Civil Service Jobs – GOV.UK

  • 205972 – Data Officer

    We are searching for a Data Officer with a passion for data, enthusiasm for innovative IT solutions and the drive to work in an organisation serving the public, to work in our small Data Management Unit at the Drinking Water Inspectorate (DWI). Apply here: Data Officer – Drinking Water Inspectorate – Civil Service Jobs – […]

  • Publication of Information Letter 02/2022

    Information Letter 02/2022 Reporting of Taste Results has been published.

  • Drinking Water 2021 – Quarter 3 published

    We have published CIR 2021 – Quarter 3.

  • Coronavirus and Private Water Supplies sampling and Risk Assessment

    Questions have been raised by local authorities in connection with arrangements for carrying out sampling and risk assessment duties on private water supplies in light of these restrictions. The following information constitutes non-statutory advice and replaces any previous advice provided by the Drinking Water Inspectorate with respect to Coronavirus. It remains for local authorities to […]

  • Advice Letter 01/22 Notification of changes to transitional list of products/substances permitted for use in private water supplies

    An advice letter 01/22 on changes to the transitional list of products/substances permitted for use in private water supplies has been issued.

  • DWI redesignated as a WHO Collaborating Centre for a further four years

    The Inspectorate is a World Health Organisation Collaboration Centre for Drinking Water Safety, and has been redesignated for a further four years to January 2026. Further details can be found on Our Work webpage

  • Publication of research report “Advanced Oxidation Processes (AOP) – Disinfection By-Products (DBPs) Phase II”

    The aim of this study was to confirm whether the nine DBPs found in the previous studies are formed under controlled conditions and if so whether these DBPs can be effectively removed by GAC post AOP. This study concluded that the nine DBPs do not form at significant levels during treatment by AOPs under a […]