Water Industry Commissioner for Scotland  
   Regulates Scottish Water, the State-owned company providing water and sewerage services in Scotland. Consultation and decision documents.
   http://www.watercommissioner.co.uk/

Office of Water Services  
   Ofwat. Regulates water and sewerage providers in England and Wales. Consultation documents, speeches, regulatory determinations, and information about the industry's performance.
   http://www.ofwat.gov.uk

WaterVoice  
   Represents consumers of water and sewerage services in England and Wales. Press notices, some leaflets and other publications.
   http://www.ofwat.gov.uk/aptrix/ofwat/publish.nsf/Content/navigation-watervoice-homepage

Drinking Water Inspectorate  
   The DWI regulates drinking water quality in England and Wales. Industry and consumer information.
   http://www.dwi.gov.uk/

Environment Agency  
   The EA regulates water abstraction and effluent disposal by water companies and others. Wide-ranging site.
   http://www.environment-agency.gov.uk

Water Reform Northern Ireland  
   Summarises proposals for regulatory reform of the water industry in Northern Ireland and provides an opportunity for consultation.
   http://www.waterreformni.gov.uk/