Guidance

Drinking water scheme: recent trend analysis

This external quality assessment (EQA) scheme is for laboratories that routinely monitor drinking water for low levels of indicator organisms.

• From: Public Health England
• Published: 31 July 2014
• Last updated: 13 October 2020
  Show all updates

  1. 13 October 2020

     Added Drinking water scheme: trend analysis.

  2. 4 June 2020

     Updated with latest trend analysis data.

  3. 30 March 2020

     Updated with recent file.

  4. 2 January 2020

     Updated with 'Drinking water scheme: trend analysis'. '

  5. 19 December 2019

     Added recent 'Drinking water scheme: trend analysis'.

  6. 22 October 2019

     Updated with latest trend analysis data.

  7. 14 August 2019

     Updated with latest trend analysis data.

  8. 25 June 2019

     Updated with latest trend analysis data.

  9. 3 January 2019

     Updated 'Drinking water scheme: trend analysis' spreadsheet.

  10. 6 November 2018

      Updated 'Drinking water scheme: trend analysis' spreadsheet.

  11. 12 September 2018

      Added an updated version of 'Drinking water scheme: trend analysis' document.

  12. 11 September 2018

      Added updated version of 'Drinking water scheme: trend analysis'.

  13. 3 July 2018

      Added recent 'Drinking water scheme: trend analysis'.

  14. 21 May 2018

      Updated with recent trend analysis file.

  15. 16 March 2018

      Updated with recent trend analysis file.

  16. 22 December 2017

      Updated with recent 'Drinking water scheme: trend analysis'.

  17. 27 October 2017

      Updated drinking water scheme: trend analysis.

  18. 29 June 2017

      Updated drinking water scheme: trend analysis.

  19. 21 May 2015

      Updated drinking water scheme: trend analysis for distribution W163.

  20. 25 November 2014

      Added trend analysis from April 2009 to November 2014.

  21. 16 September 2014

      Added trend analysis from April 2009 to August 2014.

  22. 31 July 2014

      First published.

This publication was withdrawn on 15 May 2025

This content is no longer up-to-date. For the most recent information, see the Food and Environment Proficiency Testing Unit (FEPTU) website.

Documents

Drinking water scheme: trend analysis

MS Excel Spreadsheet, 610 KB

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Details

Analysis of results from laboratories participating in the drinking water scheme, which tests for low levels of indicator organisms.

For more information, please email foodeqa@phe.gov.uk.