Annual Reports for Private Water Supplies

The latest reports are now available for England and Wales.

These reports outline drinking water quality at a national level from the perspective of the Chief Inspector of the Drinking Water Inspectorate. They are published each year around the end of June/beginning of July and cover the previous calendar year.

For private water supplies these are presented as separate reports for England and Wales and covers types of supplies, published numbers and, a summary of monitoring results and case studies.



Wales (in English)

Wales (in Welsh)

2022 (PDF 2MB)

2022 (PDF 2MB)

2022 (PDF 2MB)

2021 (PDF 4 MB)

2021 (PDF 5 MB)

2021 (PDF 3MB)

2020 (PDF 2MB)

2020 (PDF 2MB)

2020 (PDF 15MB)

2019 (PDF 2.07MB)

2019 (PDF 2MB)

2019 (PDF2.6MB)

2018 (PDF 2.54MB)

2018 (PDF 2.48MB)


2017 (PDF 2.17MB)

2017 (PDF 2.14MB)


2016 (PDF 1.2MB)

2016 (PDF 1.1MB)


2015 (PDF 3.7MB)

2015 (PDF3.5MB)

2015 (PDF3.7MB)

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