The commission regulates over 60 privately owned water companies, serving 80,000 customers.

Water Customer information Who regulates my service? Water customer frequently asked questions / Conservation tips / Consumer rights and responsibilities/Surcharges FAQ UTC Regulation Presentation (Power Point) Water Company information List of UTC regulated water companies and UTC water staff Rules Water company rules (Chapter 480-110 WAC); Tariffs and contracts (Chapter 480-80 WAC) Procedures (Chapter 480-07 WAC) Forms Generic water tariff Interest rate for customer deposits Annual report forms Affiliated Interest Report How to file an electronic tariffs' Other resources and links UTC Laws - Title 80, RCW / All UTC rules in Title 480 WAC DOH Office of Drinking Water / Consultant list / UTC links page Active water rulemaking: UTC Hearings page UTC Rulemaking page	Active Cases: Aquarius Utilities, L.L.C. Gold Beach Water Co., Inc. Harrison-Ray Water Co., Inc. H & R Waterworks Olympic Water & Sewer Inc. Roche Harbor Water System Rosario Utilities, L.L.C. Seaview Water, L.L.C. (filing withdrawn) Suncadia Water, Company, L.L.C.