Question follow-through · 14685
Chlorine: Health Hazards
To ask the Secretary of State for Environment, Food and Rural Affairs, whether water companies are required to retain records of chlorine residual measurements taken at individual domestic properties.
About this written question
A written question asks a government minister for information in writing. Parliament publishes the question and any answer.
- Answering body
- Department for Environment, Food and Rural Affairs
- Tabled
- 30 Jun 2026
- Target answer date
- 2 Jul 2026
- Answer
- 8 Jul 2026 · 8 calendar days after tabling
Elapsed calendar days describe the record timeline, not whether Parliament considers an answer on time.
More questions by this MP on Environment and energy
- Inland Waterways and Rivers: Sewage · 2 Jul 2026
- Pigs: Animal Housing · 9 Jul 2026
- Pigs: Animal Housing · 9 Jul 2026
- Water Supply: Housing · 28 Aug 2026
- Water Supply: Housing · 28 Aug 2026
Shared topic keywords suggest a connection; they do not establish a follow-up.
Votes on this topic
- Taxation (Energy and Vehicles) Bill Committee: New Clause 5 · 1 Jul 2026
- Taxation (Energy and Vehicles) Bill Committee: New Clause 4 · 1 Jul 2026
- Taxation (Energy and Vehicles) Bill Committee: New Clause 2 · 1 Jul 2026
These Commons divisions share a topic label. The question did not necessarily lead to a vote.
Recorded timeline
30 Jun 2026
Question tabled
To ask the Secretary of State for Environment, Food and Rural Affairs, whether water companies are required to retain records of chlorine residual measurements taken at individual domestic properties.
2 Jul 2026
Target answer date
Date supplied by the official written-questions record.
8 Jul 2026
Answer published
Water companies are required to monitor for chlorine as set out in Schedule 3 of The Water Supply (Water Quality) Regulations 2016. Chlorine residual measurements are part of companies’ routine compliance sampling programmes and are recorded and submitted...
Official data retrieved 28 Sept 2026.
Later records
Possible follow-up questions
Strong links require the same MP, department and exact heading. Other same-department questions are shown as unreviewed candidates, not as confirmed follow-ups. No debate link is asserted unless a stable source relationship exists.
Inland Waterways and Rivers: Sewage
2 Jul 2026 · To ask the Secretary of State for Environment, Food and Rural Affairs, what recent discussions she has had with Thames Water on the prevention of sewage overflows into rivers and waterways.
Pigs: Animal Housing
9 Jul 2026 · To ask the Secretary of State for Environment, Food and Rural Affairs, whether she can confirm that the forthcoming consultation on phasing out farrowing crates will be based on a transition to free farrowing systems rather than permitting the continued u
Pigs: Animal Housing
9 Jul 2026 · To ask the Secretary of State for Environment, Food and Rural Affairs, when she intends to publish the consultation on phasing out the use of farrowing crates for sows.
Water Supply: Housing
28 Aug 2026 · To ask the Secretary of State for Environment, Food and Rural Affairs, what assessment she has made of the adequacy of the application of the precautionary principle to potential public health risks arising from domestic water supply arrangements.
Water Supply: Housing
28 Aug 2026 · To ask the Secretary of State for Environment, Food and Rural Affairs, for what reason the precautionary principle was not applied in relation to potential inhalation and dermal exposure arising from domestic water supply arrangements.
Water Supply: Housing
28 Aug 2026 · To ask the Secretary of State for Environment, Food and Rural Affairs, whether her Department has commissioned an assessment by a public body of potential inhalation and dermal exposure arising from domestic water supply arrangements.
Water Supply: Housing
28 Aug 2026 · To ask the Secretary of State for Environment, Food and Rural Affairs, whether she has made an assessment of the potential merits of additional independent research into potential inhalation and dermal exposure associated with domestic water supply arrang
Water Supply: Housing
28 Aug 2026 · To ask the Secretary of State for Environment, Food and Rural Affairs, what assessment her Department has made of the potential merits of providing guidance to households on the potential impact of significant plumbing alterations on (a) water quality and
Water Supply: Housing
28 Aug 2026 · To ask the Secretary of State for Environment, Food and Rural Affairs, whether she has considered the potential merits of introducing a requirement for households undertaking significant plumbing alterations to be provided with information on potential ch
Water Supply: Housing
28 Aug 2026 · To ask the Secretary of State for Environment, Food and Rural Affairs, what discussions her Department has had with the UK Health Security Agency and the Drinking Water Inspectorate on the potential merits of for further research into inhalation and derma
Car Washes: Water
28 Aug 2026 · To ask the Secretary of State for Environment, Food and Rural Affairs, what assessment she has made of the potential merits of restricting the use of mains water by commercial car washes during periods of water scarcity.