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Many King County facilities are closed to the public. Learn how to access services remotely or while following social distancing guidelines.  
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Wastewater Treatment Division (WTD) and Novel Coronavirus (COVID-19)

WTD operations staff remain on the job 24/7 to ensure the region’s wastewater treatment service continues. Following the guidance of Seattle-King County Public Health, our offices are closed to the public and all facility tours are suspended until further notice. Please check back periodically for updates.

For questions about COVID-19, we encourage people to visit the Public Health – Seattle & King County website: www.kingcounty.gov/covid and subscribe to the Public Health Insider blog: www.publichealthinsider.com

South plant, located in Renton, is part of King County's regional wastewater treatment system.

South plant treats wastewater from homes and businesses coming from cities located east and south of Lake Washington. Approximately 90 million gallons a day (mgd) of wastewater is treated at this facility during the dry months and up to about 300 mgd flows can be treated during the rain/storm season.

rsz_8091952044_bc3c6ce1a3_zSouth Treatment Plant in Renton

View more photos on our Flickr site  .

Contact us

24 hour emergency and odor reporting:   206-263-1760
Administration:  206-263-1810

Address
1200 Monster Road S.W.
Renton, WA 98057

Directions , map, and septage disposal map