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WA DoH’s Water System Design Manual Released

Washington State Department of Health staff recently finalized the 4th Edition of their Water System Design Manual.  It is now available on their Water System Design webpage where it is described as start-to-finish reference for engineers and others involved in water system design. It covers design, review and approval of sources, storage reservoirs, booster pump stations, water treatment facilities, and other aspects of designing water systems.  Numerous updates were made to the manual from the previous edition released in 2009.