CASCADE WATER ALLIANCE: LEAD OUR REGION AS CHIEF EXECUTIVE OFFICER About Cascade Water Alliance Cascade Water Alliance (Cascade) is a municipal corporation comprised of seven member agencies working together to ensure a reliable and sustainable water supply for 400,000 residents in King County. Established in 1999, Cascade’s members include five cities (Bellevue, Issaquah, Kirkland, Redmond, and Tukwila) and two water and sewer districts (Sammamish Plateau Water and Skyway Water & Sewer District). Cascade’s mission is to provide safe, clean, and reliable water to our members in a cost-effective and environmentally responsible way through regional leadership and strong relationships. Cascade is unique among Washington water suppliers in that it serves exclusively as