Operating Board Participants

The Operating Board consists of 17 cities and districts that have signed a 60-year contract with the City of Seattle for either a full or partial supply of water, plus the City of Seattle. One member, Northshore Utility District, has signed a block contract for a fixed amount of water, which they may receive on a monthly basis.

  • Cedar River Water & Sewer District
    CRWSD, formed in 1960, provides service to nearly 25,000 customers across 34.5 square miles in the Fairwood and Maple Valley communities.
  • City of Bothell
    The City of Bothell Public Works Department is responsible for the operations and maintenance of more than 71 miles of water mains, four reservoirs, four pumping stations and water supply to 3,900 meters.
  • City of Duvall
    City of Duvall has a population of 5,980 and is the fastest growing community in Washington State. Duvall is located 25 miles NE of Seattle.
  • City of Mercer Island
    The City of Mercer Island, incorporated in 1960, covers approximately 6.2 square miles, has a population of nearly 23,000 and an average daily demand of 2.23 million gallons per day (mgd).
  • City of Renton
    City of Renton was incorporated as a City September 6, 1901 and is the 4th largest City in King County. It has had the highest growth since 2000 at 84.9%, with more than 92,500 residents over 23.79 square miles.
  • City of Seattle
    Seattle owns and operates the water supply system that serves approximately 1.3 million customers in both King and a small portion of Snohomish County.
  • Coal Creek Utility District
    CCUD serves approximately 10,000 customers with 3,500 water connections across seven square miles.
  • Highline Water District
    Highline Water District, incorporated in 1946, serves approximately 68,000 people living and working in Des Moines, Normandy Park, and portions of Tukwila, Burien, SeaTac, Federal Way, Kent, and unincorporated King County. The total district area is about 18 square miles.
  • King County Water District No. 20
    KC Water District No. 20 was established in November 1925 and serves more than 9,000 customers across an area of seven square miles.
  • King County Water District 49
    King County Water District 49 has been serving the Burien area since 1950.
  • King County Water District 90
    King County Water District 90 incorporated August 12, 1952 and serves an area approximately 15 square miles. It supplies water to approximately 7,000 water services. About 30% of their water comes from underground wells, and they rely on Seattle for approximately 70%.
  • King County Water District 119
    King County Water District 119 has been serving northeast King County since 1965. The district provides water service to about 1,200 properties from Stillwater north to the King/Snohomish County line and immediately east of the City of Duvall.
  • King County No. 125
    KC Water District No. 125 serves approximately 15,000 customers and comprises portions of several cities, including Tukwila, SeaTac, Burien, Skyway, and unincorporated King County.
  • Northshore Utility District
    NUD is located at the northeast end of Lake Washington in King County. The district was formed in 1947 and serves more than 20,000 water customers across approximately 17 square miles (or 11,000 acres) in parts of Kenmore, Bothell, Juanita, Totem Lake, Kingsgate, Finn Hill, Lake Forest Park, and Kirkland.
  • Olympic View Water & Sewer District
    Olympic View W&S District, created in 1937, has an annual growth rate of slightly greater than one percent and serves approximately 15,500 customers in a 3.8 square mile area.
  • North City Water District
    Shoreline WD was created by election in 1931 and was formerly known as King County Water District 42. Shoreline WD covers approximately five square miles and serves more than 8,000 customers.
  • Soos Creek Water & Sewer District
    Soos Creek W&S District formed in 1939 and provides water service to almost 100,000 customers across 35 square miles in southeast King County.
  • Woodinville Water District
    Woodinville WD, established in 1959, serves more than 13,000 water customers across 30 square miles.