A report by the Chief Inspector of drinking water
The Drinking Water Inspectorate annual report Drinking water 2019 provides an overview of the quality of public and private water supplies in England and Wales. It comprises of the following:
Chief Inspector’s Letter to Ministers (for England and Wales)
The letters from the Chief Inspector to the Ministers in England and in Wales contain a high level overview of findings for the year.
Public water supplies
Annual Summary reports
Quarterly reports published
CRI and ERI
Private water supplies
Presented as separate reports for England and Wales and publishing numbers and types of supplies, a summary of monitoring results and case studies.
Drinking water quality events in 2019
Top 50 ERI scoring events (PDF 230KB) showing company actions and DWI findings
All other events (PDF 519KB)