Water Supply: Lead
The question
To ask the Secretary of State for Environment, Food and Rural Affairs, if he will make an assessment of the potential merits of instructing water companies to test all households in receipt of water if it is determined that lead is present in their water source.
Answered by Emma Hardy
Water companies are responsible for drinking water quality to the boundary of a consumer’s property. The domestic plumbing system is the responsibility of the home/building owner and therefore there may be limitations, such as access constraints, which limit the ability to sample at every customer tap. Though, water companies are required to risk assess drinking water supplies from source to tap and will, where appropriate required, treat water.
The Drinking Water Inspectorate has provided advice for consumers to better understand if they have lead pipe in their home and how to reduce the risk, for example by running water to remove standing water in the pipes before use (https://www.dwi.gov.uk/lead-in-drinking-water/). If consumers think there is a risk to their supply, they can request a lead test from their water company.
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