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Most King County offices will be closed on Monday, for Indigenous Peoples' Day.  
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King County is carrying out these projects as part of the Regional Wastewater Services Plan, a 30-year comprehensive plan adopted by the King County Council in 1999 to ensure the regional sewer system keeps pace with growth and continues meeting regulatory requirements.

Map Key: active projects (GREEN) and completed projects (PURPLE).
View projects in list form: active and completed.