King County CSO Program

Seattle, WA

King County Wastewater Treatment Division is updating the Combined Sewer Overflow (CSO) Long Term Control Plan and Lotus Water is providing a wide range of services to assist them.  Lotus is part of a team of consultants, including HDR and Carollo Engineers, to provide long term solutions to the unique challenges facing this region, including aging infrastructure, stringent regulations, and climate change.  Notable components of Lotus’ scope include capital infrastructure planning and a performing a national CSO bench-marking study to compare King County’s Program to other major national metropolitan CSO Control Programs. The scope also includes expert reviews on infiltration feasibility, identifying an alternative ranking model, and developing alternatives for uncontrolled CSO locations.

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