Question to the Department for Environment, Food and Rural Affairs:
To ask the Secretary of State for Environment, Food and Rural Affairs, how many investigations were conducted by the Drinking Water Inspectorate into potential contaminated water supplies in each of the last five years.
The DWI conducts investigations to an appropriate degree for each drinking water quality event notified by water companies. For the period 2017 to 2021 there were a total of 2465 events in England and Wales investigated by the DWI. The annual breakdown of this total is as follows:
Events in England and Wales | ||||||
Year | 2017 | 2018 | 2019 | 2020 | 2021 | Total |
Total | 503 | 532 | 546 | 417 | 467 | 2465 |