• Resilience of water supplies in water resource planning – Guidance Note

    This Guidance note on the Resilience of Water Supplies in water resource planning is a supplementary note to the long term planning guidance for the quality of drinking water supplies. All the guidance notes are available on our Guidance and Code of Practice webpage.

  • Drinking Water 2021- Quarter 1 published

    We have published CIR 2021 – Quarter 1. Click here to view.

  • Innovation One Stop Shop

    We are delighted to announce we have received £170,000 through the Regulators’ Pioneer Fund to create a one-stop-shop with Ofwat and the Environment Agency to make it easier for innovators to obtain advice on navigating regulatory barriers in the water and sewerage industry.

  • Publication of research report on Persistent, Mobile and Toxic Substances – Hazards to Drinking Water in England and Wales

    This project was set up to critically review the approach proposed by the German Environment Agency and the Norwegian Geotechnical Institute to identify PMT chemicals; refine, where necessary, the classification for the 58 chemicals based on available data; provide an understanding of the nature and volume of use of these chemicals in England and Wales; […]

  • Drinking Water 2020 Private Water Supplies published

    Drinking water 2020 Private Water Supplies is the 11th such report published by the Drinking Water Inspectorate and covers private water supplies in England and Wales.

  • Drinking water 2020 published

    Drinking water 2020 is the 31st report published by the Drinking Water Inspectorate and covers public water supplies in England and Wales.

  • Publication of research report “Likelihood of three endocrine disrupting substances reaching drinking water”

    EDCs are a diverse group of chemicals that have the potential to alter the normal functioning of the hormonal system across a wide range of wildlife and in humans (especially during early development). Their presence in a variety of applications and direct pathways for release to environment also means that EDCs could reach drinking water […]

  • Publication of Research report “Viruses in Ground Water”

    Groundwater sources provide approximately 30% of water supplies in England (and 5% in Wales). There are known to be over 100 microbiological pathogens that can contaminate groundwater, including viruses. Whilst water companies in England and Wales do include the risks from viruses in their drinking water safety plans, there is no monitoring for viruses conducted […]

  • Water Industry Green Recovery Schemes

    The Drinking Water Inspectorate has been working with OFWAT and other regulators to support the water industry in a green economic recovery.  The green recovery will trial a number of innovations ahead of the next price review. Severn Trent Water and South West Water will take on trials to remove lead from customer supply pipes […]

  • Drinking Water 2020 – Quarter 3 has been published

    Click here to view.

  • Publication of research on Long-term Strategies to Reduce Lead Exposure from Drinking Water

    As a part of our ongoing research programme the Inspectorate commissioned a review of the currently available evidence on lead in drinking water and the possible long term strategies to reduce exposure. A range of scenarios has been costed, using the latest knowledge of the health effects of lead.  These have been modelled and their […]

  • Measures and tools for disinfection by products minimisation strategies

    In the UK, legislation requires that DBP concentrations must be kept as low as possible without compromising the effectiveness of the disinfection. In addition, a prescribed concentration of 100 µg L-1 has been set for the sum of the concentrations of the four trihalomethanes (THMs) measured at the consumers tap. Although haloacetic acids (HAAs) are […]