The UK Statistics Authority wrote to Seamus Logan MP about statements on water quality

28 October 2025 · Professor Dame Carol Propper, UK Statistics Authority

The letter, dated 28 October 2025, replies to correspondence of 5 September 2025. The UK Statistics Authority published it as Professor Dame Carol Propper to Seamus Logan MP: Statements on water quality; it links to 6 official records. Below are 4 passages from the letter in the regulator's own words.

What the UK Statistics Authority wrote

“However, we have looked at some of the statements made as part of our role enforcing the Code of Practice for Statistics; a full list of these is enclosed in Annex A.”

“In brief, we consider that these statements lacked enough transparency about their sources to be verified, and that the broad evidence did not support them.”

“We also note his letter of 24 July to Stephen Flynn MP published on X, which cites a range of statistics in response to the dispute over his claims.”

“As former Chairs have said, omitting this kind of information can damage public trust in the data, so we encourage those speaking on behalf of Government to ensure statistical statements are presented clearly and transparently, in a way that supports public understanding.”

From Professor Dame Carol Propper, UK Statistics Authority, letter of 28 October 2025. Read the full letter.

Records the letter links to

• final report (assets.publishing.service.gov.uk)
• Government’s stated ambitions
• House of Commons
• House of Commons
• House of Commons
• House of Commons

Correspondence

• The letter it answered: Seamus Logan MP to Emma Rourke – statements on water quality (5 September 2025)

More on Seamus Logan.

Receipt