Wastewater Treatment Division staff are prepared to respond to a variety of complaints and incidents related to the regional wastewater conveyance and treatment system including addressing odor complaints, sewer spills, storm-related problems, and other incidents.
West Point incident and restoration
For questions or inquiries related to the West Point incident, please do not call the West Point Treatment Plant.
- 206-477-5371 (after hours, leave message)
- West Point treatment plant restoration
- West Point marine water quality monitoring
- West Point environmental monitoring
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If you see a warning sign near the water, it means that raw sewage has overflowed into the waterway, and you (and your pets) are advised to stay out of the water in the area until signs are removed.
Recent incident responses are listed below (click on "+" to expand view)
Location: South Park
Thursday, March 9
With the Eighth Avenue Regulator Station fully operational and cleanup of 13 residences complete, King County is working with affected individuals to facilitate restoration of the properties.
Tuesday, February 28
Several residents are returning home after stormwater and sewage flooded homes in Seattle's South Park neighborhood on Feb. 9. King County provided cleanup assistance at two additional properties, raising the total to 13 dwellings affected. All cleaning and sanitizing will be complete this week. King County continues to assist displaced residents with housing and personal needs, and arranged off-duty police to maintain neighborhood security.
The root cause analysis on the Eighth Avenue Regulator Station is completed. The gate failure was caused when a control part at the station malfunctioned and did not open the gate when the station was in high flow mode. This pushed stormwater mixed with small amounts of sewage into nearby homes, instead of discharging as a combined sewer overflow into the Duwamish River. The faulty control part was fixed and the issue is resolved.
Wednesday, February 22
King County WTD is continuing work to support residents affected by wastewater backups in about 11 homes in Seattle's South Park neighborhood. The backups occurred during the large February 9 storm that affected West Point Treatment Plant. An equipment malfunction in the County's system at the Eighth Avenue regulator pushed stormwater and wastewater back into the local system and into nearby homes.
King County is providing assistance to residents and addressing property damage. The County's contractors are cleaning and sanitizing homes. Real estate staff are assisting tenants with housing needs including temporary accommodations in local hotels. One family has already returned home. Assistance is being provided to residents with claim forms for structural damage and lost possessions. Affected residents are also getting assistance to cover food and personal item costs while they are displaced. Staff are working with contractors to ensure unoccupied homes are left secure at the end of each day.
Blog: Clean water stories
Monitoring the Environment During West Point Restoration, April 28, 2017
West Point Update: Fine Tuning the Biology, April 7, 2017
Reaching Out to the Next Generation of Clean Water Stewards, April 5, 2017
Norovirus Outbreak in Oysters Unrelated to West Point Overflow, March 31, 2017
King County’s Marine Monitoring Program Continues Rain or Shine, March 28, 2017
That Plume You See is Sediment, Not Sewage, March 21, 2017
Another Important Step Forward at West Point Treatment Plant, March 16, 2017
When the unexpected unfolds: protecting people after wastewater overflows, February 13, 2017