Drinking water 2020

A report by the Chief Inspector of drinking water

This report is in PDF format. The Adobe® Acrobat Reader® can be freely downloaded here.

The Drinking Water Inspectorate annual report Drinking water 2020 provides an overview of the quality of public and private water supplies in England and Wales. It comprises of the following:

Public water supplies

The report covers England and Wales and summarises the testing and results of water quality tests, events and technical audit activity.


Quarter 1: January - March 2020 (PDF 1.14MB)
Quarter 2: April - June 2020 (PDF 928KB)
Quarter 3:
Quarter 4:

Prosecution and Cautions



Page reviewed: 4 November 2020
Page modified: 4 November 2020

Drinking Water Inspectorate