Covington Water District is a special purpose District, responsible for providing water for approximately 55 square miles of South King County under a Coordinated Water System Plan. The District is roughly bounded by SR-18 on the northwest, the Maple Valley Highway on the northeast, Ravensdale on the east, and the Green River on the south. Cities within our boundaries include Covington, Maple Valley and Black Diamond.
The District was formed in 1960 with fewer than 100 customers, but through mergers of smaller districts and growth now consists of over 17,000 connections. Today the District is governed by a five member Board of Commissioners. The District has a total of 11 production wells, 3 treatment plants, emergency interties with 2 neighboring agencies, 20.5 million gallons of storage in steel tanks at seven sites throughout the District, and over 267 miles of pipeline.
The District’s water supply consists of groundwater via our production wells allotted to us by the State of Washington (our Water Right), and surface water from the Green River Watershed via the Regional Water Supply System (RWSS). The District has been a partner in the RWSS since 2002 and started receiving water from behind the Howard Hanson Dam in 2006.
Take a look at our 2021-2022 Membership Publication. Our printed directory has arrived! Welcome new and continuing members!