Power outage causes 11 million gallons of stormwater, sewage to spill into Puget Sound
An “extensive” overnight power outage inadvertently allowed 11 million gallons of untreated wastewater to flow into Puget Sound Wednesday.
Seattle sewage plant having trouble keeping up with population
The overflows — composed of 80% stormwater and 20% sewage — come from the West Point Treatment Plant in Seattle, the Richmond Beach pump station in Shoreline, and another pump station in Medina.
According to King County officials, “voltage fluctuations” occurring between 12 a.m. and 2 a.m. Wednesday caused pump stations to shut down repeatedly and overflow. Meanwhile, heavy rain and subsequent power outages exacerbated the situation.
“Large volumes of rainfall throughout …
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