Säzän Environmental Services facilitated an options analysis and value study for an $18 million pump station and stormwater water quality treatment facility.
The project reduced flooding in the South Park neighborhood and treated stormwater prior to discharge into the Duwamish River. The review team assessed two pump stations and four stormwater quality treatment options relative to functions served, technical factors, system performance, risk factors, and life cycle cost, recommending several options to carry into the design.