Elliott West CSO facility emergency repair

Update: During the week of August 17, workers will begin restoring landscaping in Myrtle Edwards Park. This is the final phase of emergency repairs for this project. Workers will reseed damaged lawns and plant trees around the Denny Way Regulator Station, north of the Olympic Sculpture Garden. Work will usually be on weekdays 7 a.m. - 5 p.m. and will be completed by October 1, 2009. See right sidebar for the complete project update.

To protect public health and the environment, the King County Wastewater Treatment Division will make emergency repairs to its Elliott West Combined Sewer Overflow (CSO) Facility in Myrtle Edwards Park in fall 2008.

Map of Project Area. Click on image for larger view

Like many older cities in the United States, parts of Seattle's sewer system convey both wastewater and stormwater. During storms these combined flows enter the Elliott West CSO facility for storage and/or treatment. When the combined flows exceed the facility's capacity, a portion discharges to Elliott Bay through an outfall pipe offshore of Myrtle Edwards Park.

The repair work is part of King County's ongoing effort to reduce CSO's into Elliott Bay. The upgrades and repairs made during this project will prevent further damage to the facility and reduce the chance of overflows into the park during storms.

Repairs are scheduled to be complete in October, with final restoration and landscaping occurring later.

To ensure the facility is ready for the winter wet season, King County's contractor may work 24 hours a day on weekdays and Saturdays.