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The Cascade Water Alliance is an association of cities and water districts working together to ensure a clean, safe and reliable water supply today and well into the future.

Today Cascade supplies over 370,000 residents and 22,000 businesses in Bellevue, Kirkland, Redmond, Issaquah, Sammamish, Tukwila, Covington and Skyway - nearly 50 percent of retail water sales in King County outside of Seattle.

The mission of Cascade is to supply water to meet the needs of its Members in a cost-effective and environmentally sensitive manner.

Cost-effective conservation efforts to reduce regional demand and the development of new water sources are both important elements of Cascade's long-term water supply plan.

The Interlocal Contract that established Cascade in 1999 (amended) gives it the responsibility to:
  • Purchase wholesale water from other regional suppliers
  • Coordinate conservation and supply management
  • Acquire, construct and manage water supply infrastructure
  • Foster regional water planning that provides adequate water for both people and fish
Cascade's 2004 Transmission and Supply Plan describes three major programs that will be the Cascade Water system:
  • The Block Contract with Seattle
  • Purchase of water from Tacoma
  • Development of the Lake Tapps Reservoir as a municipal water supply source
To date, a number of complex agreements with regional partners have been negotiated. Accomplishments during 2005 brought Cascade closer to delivering on its promise of providing a clean, safe, reliable water supply to our citizens and economy for the next 50 years and beyond.... Read more about 2005 Activities.


Serving:
City of Bellevue
Covington Water
District
City of Issaquah
City of Kirkland
City of Redmond
Sammamish Plateau
Water & Sewer District
Skyway Water &
Sewer District
City of Tukwila
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