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Heavy rainfall forced sewage to overflow into parts of Seattle and Everett today.

Everett got the worst of it as raw sewage from 10 of 12 sewer outfalls overflowed into the Snohomish River and Port Gardner Bay today. A sewer lift station also overflowed for about 55 minutes. The total amount of sewage spilled in the city isn’t known yet, according to a city release. The city’s website has a map of areas affected by the spill.

When Everett’s sewer system is overcapacitated, overflow is designed to discharge into the Snohomish River and Port Gardner Bay, according to a city release.

Untreated sewage also spilled into Seattle’s Meadowbrook Park this afternoon, according to the King County Department of Natural Resources and Parks. Stormwater and sewage pushed through a concrete sediment trap into the park’s pond and a nearby trail. The department says wastewater utility crews helped make the spill brief. Water quality will be monitored, and Seattle Public Utilities will post park area-closure signs soon, according to a department release.