The Drinking water Inspectorate (DWI) is the government agency that ensures that water companies in England and wales supply water that is safe to drink and meets the standards set in water quality legislation. It also investigates complaints about quality by consumers. The site contains information about the role of the Inspectorate and its annual reports on each of the privatised water companies. These include assessments of the quality of water supplied and any reports of contamination by foreign agents such as bacteria and pesticides. Also available are information on the legal standards for water quality in the UK and the full text of any special reports on specific contamination incidents.