Drinking water 2016

A report by the Chief Inspector of drinking water

This report is in PDF format. The Adobe® Acrobat Reader® can be freely downloaded here.

The Drinking Water Inspectorate annual report Drinking water 2016 provides an overview of the quality of public and private water supplies in England and Wales. It comprises of the following:

Chief Inspector's Letter to Ministers (for England and Wales)

The letters from the Chief Inspector to the Ministers in England and in Wales contain a high level overview of findings for the year.

Letter to Minister - England (PDF 65KB)
Letter to Minister - Wales (PDF 65KB)

Annual Summary reports

Summary of the Chief Inspector’s report for drinking water in England (PDF 1.28MB)
Summary of the Chief Inspector’s report for drinking water in Wales (PDF1.68MB)

Quarterly reports published during 2016/17

Quarter 1: January - March 2016 (in English) (PDF 529KB)
Quarter 1: January - March 2016 (in Welsh) (PDF 535KB)
Quarter 2: April - June 2016 (in English) (PDF 519KB)
Quarter 2: April - June 2016 (in Welsh) (PDF 514KB)
Quarter 3: July - September 2016 (PDF 611KB)
Quarter 4: October – December 2016 (PDF1.01MB)


Private water supplies

Presented as separate reports for England and Wales and publishing numbers and types of supplies, a summary of monitoring results and case studies.

England (PDF 1.2MB)
Wales (PDF 1.1MB)

Industry summary data

Including
  • Sample results: Tables providing a summary of number of tests taken and number of tests not meeting the standard or screening value.
  • Number of events: Tables showing the number and nature of events

Tests in England (PDF 107KB)
Tests in Wales (PDF 86KB)

Drinking water quality events in 2016

Full summary of all events showing company actions and DWI findings

Company data

Company name Sample Results Company statistics and company performance data

Affinity Water

Download (PDF123KB)

Download (PDF22KB)

Albion Water

Download (PDF116KB)

Download (PDF22KB)

Anglian Water

Download (PDF 267KB)

Download (PDF22KB)

Bournemouth Water

Download (PDF119KB)

Download (PDF22KB)

Bristol Water

Download (PDF160KB)

Download (PDF22KB)

Cambridge Water

Download (PDF109KB)

Download (PDF22KB)

Cholderton and District Water

Download (PDF118KB)

Download (PDF22KB)

Dee Valley Water

Download (PDF101KB)

Download (PDF22KB)

Dŵr Cymru Welsh Water

Download (PDF134KB)

Download (PDF47KB)

Essex and Suffolk Water

Download (PDF129KB)

Download (PDF22KB)

Hartlepool Water

Download (PDF107KB)

Download (PDF22KB)

Independent Water Networks

Download (PDF92KB)

Download (PDF22KB)

Northumbrian Water

Download (PDF144KB)

Download (PDF22KB)

Peel Water Networks

Download (PDF95KB)

Download (PDF22KB)

Portsmouth Water

Download (PDF116KB)

Download (PDF22KB)

Severn Trent Water

Download (PDF2312KB)

Download (PDF22KB)

South East Water

Download (PDF127KB)

Download (PDF22KB)

South Staffordshire Water

Download (PDF166KB)

Download (PDF22KB)

South West Water

Download (PDF130KB)

Download (PDF22KB)

Southern Water

Download (PDF119KB)

Download (PDF22KB)

SSE Water

Download (PDF129KB)

Download (PDF22KB)

Sutton and East Surrey Water

Download (PDF103KB)

Download (PDF22KB)

Thames Water

Download (PDF124KB)

Download (PDF22 KB)

United Utilities

Download (PDF 226KB)

Download (PDF22KB)

Veolia Water Projects

Download (PDF105KB)

Download (PDF21KB)

Wessex Water

Download (PDF120KB)

Download (PDF22KB)

Yorkshire Water

Download (PDF148KB)

Download (PDF28KB)


Prosecution and Cautions

 

Page reviewed: 13 July 2017
Page modified: 13 July 2017

Drinking Water Inspectorate