Learn more about your water

Advice for finding a plumber

Advice for finding a plumber

PDF, 48KB, 2 Pages

Algae and Cyanobacteria in water

Algae and Cyanobacteria in water

PDF, 27KB, 1 Pages

Animals in drinking water

Animals in drinking water

PDF, 33KB, 1 Pages

Bills and compensation

The Drinking Water Inspectorate are not able to deal with billing or compensation issues. You should contact your water company in the first instance. If they are unable to resolve the matter, you should contact the CCW.

Blue or brightly coloured water

Blue or brightly coloured water

PDF, 26KB, 1 Pages

Boil water notice

Boil water notice

PDF, 27KB, 1 Pages

Bottled water

Bottled water

, 1 Pages

Brown, black or orange water

Brown, black or orange water

PDF, 33KB, 2 Pages

Chlorine

Chlorine

PDF, 83KB, 3 Pages

Cryptosporidium and cryptosporidiosis

Cryptosporidium and cryptosporidiosis

PDF, 40KB, 1 Pages

Discoloured water/Particles in drinking water

Discoloured water/Particles in drinking water

PDF, 83KB, 4 Pages

Drinking water standards/regulations

Drinking water standards/regulations

PDF, 108KB, 5 Pages

Drought

Drought

PDF, 30KB, 2 Pages

Endocrine disrupters

Endocrine disrupters

PDF, 49KB, 2 Pages

Filters and softeners

Filters and softeners

PDF, 119KB, 3 Pages

Flooding

Flooding

PDF, 31KB, 2 Pages

Fluoride

Fluoride

PDF, 85KB, 2 Pages

Fluoride map

PDF, 397KB, 1 Pages

Illness

Illness

PDF, 27KB, 1 Pages

Improvement programmes – work going on to improve your water supply

Improvement programmes

Lead

Lead

PDF, 94KB, 4 Pages

Legal Instruments

Legal Instruments

PDF, 82KB, 3 Pages

Nickel

Nickel

PDF, 29KB, 2 Pages

Nitrate

Nitrate

PDF, 62KB, 2 Pages

Pesticides

Pesticides

PDF, 43KB, 2 Pages

Petrol

Petrol

PDF, 58KB, 2 Pages

PFAS

PFAS

PDF, 97KB, 6 Pages

Pharmaceuticals

Pharmaceuticals

PDF, 66KB, 1 Pages

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Request an accessible format.

If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email dwi.enquiries@defra.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Private water supplies

Private water supplies

PDF, 27KB, 1 Pages

River and sea water

The DWI is not able to deal with matters relating to river and sea water. All enquiries should be directed to the Environment Agency using the contact details here.

Taste and odour

Taste and odour

PDF, 81KB, 3 Pages

TCP

TCP

PDF, 59KB, 2 Pages

Water hardness

Water hardness

PDF, 118KB, 3 Pages

Water hardness map

PDF, 3MB, 1 Pages

Water storage tanks and cisterns

Water storage tanks and cisterns

PDF, 88KB, 4 Pages

Water testing

Water testing

PDF, 52KB, 1 Pages

White or cloudy water

White or cloudy water

PDF, 31KB, 1 Pages