10:17 AM: Just in from King County Wastewater Treatment Division:
King County Wastewater Treatment Division is investigating a leaking pressure relief valve on the Barton Pump Station pipeline that travels through Lincoln Park located in West Seattle that resulted in a small sewer overflow.
Signs have been posted advising the public to avoid contact in the area located in the southern-most end of the park along the beach trail north of the Fauntleroy Ferry Dock. King County dispatched a crew to clean up the site and water quality testing will be done throughout the weekend. The overflow has been reported to health and regulatory agencies.
We have followup questions about the size/volume of the overflow and the stretch of shore affected, since there’s a stretch of private shoreline north of the dock, as well as little Cove Park, before you get to the south end of Lincoln Park. We’re also headed out to look for signage/work crews.
11:25 AM: No reply yet, but we did find a “stay out of the water” sign at Cove Park; photo added above.
1:03 PM: From KCWTD spokesperson Norm Mah: “The estimate is between 200-400 gallons, most of which was cleaned up by a vactor (vacuum) truck last night. Some of it was within the vault that houses the valves.”
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