Question to the Department for Environment, Food and Rural Affairs:

To ask the Secretary of State for Environment, Food and Rural Affairs, what estimate she has made of how much was spent by water companies on removing (a) pesticides and (b) nitrates from drinking water supplies in each of the last five years.

Ongoing general expenditure information for pesticide and nitrate removal is not collated or held on an annual basis by the Drinking Water Inspectorate.