questionText: To ask the Secretary of State for Environment, Food and Rural Affairs, how frequently drinking water is tested for compliance with (a) microbiological and (b) chemical safety standards.
answerText: The sampling frequency for drinking water is set out in Schedule 3 of The Water Supply (Water Quality) Regulations 2016 including which parameters are sampled at which point in the system, with some variation depending on factors such as treatment chemica...
heading: Drinking Water: Safety