Dec. 5, 2007
King County responds to wastewater overflow in Bothell
King County's sewer utility crews are working to clean up a
wastewater overflow at the North Creek Pump Station in Bothell that was
caused by Monday's torrential rainstorm.
wastewater was diverted to the pump station via the West force main to
provide capacity at the West Point Treatment Plant during extremely
high flows Monday night, a valve failure at the pump station allowed
the highly diluted wastewater to leak for roughly 16 hours before the
problem was identified.
It is estimated that 500,000
gallons or more leaked. Much of the wastewater flowed to a containment
pond, which drains into the Sammamish River. To protect public health,
the area was posted and a clean-up plan put into place.
remaining material will be cleaned up as conditions allow. The
saturated ground is currently too soft to accommodate a vactor truck.
Crews have pumped out residual wastewater and have done physical
clean-up where soil conditions have allowed trucks.
County Environmental Laboratory staff took water samples at the water
body, and public health and regulatory agencies were notified.
People enjoy clean water and a healthy environment because of King
County's wastewater treatment program. The county's Wastewater
Treatment Division protects public health and water quality by serving
17 cities, 17 local sewer utilities and more than 1.4 million residents
in King, Snohomish and Pierce counties. Formerly called Metro, the
regional clean-water agency now operated by King County has been
preventing water pollution for more than 40 years.