The Drinking Water Inspectorate provide information and advice to consumers on the quality of drinking water. The following is a list of subjects that either provide information on this website or direct you to the organisation that should be able help. If you are unable to find what you are looking for please contact us on

Some of these documents are in PDF format. The Adobe® Acrobat Reader® can be freely downloaded here.

Advice for finding a plumber (PDF 132KB)
Algae in drinking water
(PDF 120KB)
Animals in drinking water (PDF 114KB)
Bills and compensation
Blue water/Copper in drinking water (PDF 83KB)
Boil water notice (PDF 782KB)
Bottled water
Chlorine (PDF 89KB)
Cryptosporidium and cryptosporidiosis (PDF 73KB)
Discoloured water/Particles in drinking water (PDF 142KB)
Drinking water standards/regulations (PDF 169KB)
Endocrine disruptors (PDF 118KB)
Filters and softeners (PDF 139KB)
Fluoride (PDF 130KB)
Improvement programmes - work going on to improve your water supply
Lead (PDF 95KB)
Looking after water in your home (produced by Water UK)
Nitrate (PDF 119KB)
Pesticides (PDF 117KB)
(PDF 69KB)
Private water supplies (PDF 99KB)
Private water supplies - new regulations (PDF 193KB) (Welsh version (PDF 224KB))
River and sea water
Taste and odour (PDF 95KB)
Water hardness (PDF 120KB)
Water tanks, storage and fittings (PDF 133KB)
Water testing

Page reviewed: 20 February 2015
Page modified: 20 February 2015

Drinking Water Inspectorate