Welcome to Soos Creek Water & Sewer District (SCWSD). SCWSD is a municipal corporation of King County, Washington, serving south King County since 1939. Formerly Water District 58 and Cascade Sewer District, the two merged in 1987.

Originally serving an area of less than 2 square miles and a few hundred customers, SCWSD now encompasses over 35 square miles and provides water and sewer services to almost 100,000 people in southeast King County. Water is purchased from Seattle Public Utilities and reaches our reservoirs via Lake Youngs, which is adjacent to the District's office. The sanitary sewer system, with 30 lift stations, conveys the wastewater to the King County Department of Natural Resources treatment plant in Renton for treatment and disposal.

SCWSD is governed by a Board of Commissioners, five publicly elected citizens living within the SCWSD service area.