DWI Reports with recommendations and lessons-learnt applicable to all water suppliers

The DWI publishes reports on its investigations into water company events and technical audits where there are recommendations and lessons-learnt that are important for all water suppliers to take note of. Links to these reports are in the table below:

Report Title	Publication Date
Consolidated review of the widespread loss of supplies arising from the freeze/thaw event affecting England in December 2022 (PDF 793 KB)	17 May 2023
Consolidated Review of the Widespread Loss of Supplies arising from the freeze/thaw affecting England and Wales in March 2018 (PDF 254KB)	19 June 2018
Copeland Area: Consumer Concern about Drinking Water Quality (PDF 28.1MB)	30 November 2017
Report of the Drinking Water Inspectorate’s Investigation in to the Cryptosporidium Contamination of Franklaw Treatment Works in August 2015 (PDF 1.67MB)	25 October 2017