PWX 2019

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How to Successfully Implement a Regional Biofiltration Stormwater Treatment System in an Ultra-Urban Neighborhood

Seattle Public Utilities (SPU) is implementing a regional stormwater treatment system and prioritizing specific areas for retrofits based on the receiving water body and the pollutant load. The challenge in an ultra-urban area is finding property in the right location for a treatment facility. This talk will cover SPU’s experience when a public-private partnership resulted in a well-located, innovative, and high-performing regional stormwater treatment facility. Despite the construction, operational, and O&M challenges, the facility’s water quality performance is considered excellent relative to other stormwater facilities.