How was the Sewer Service Basin determined?
The size or area of the Sewer Service Basin, was modeled after the Chambers Creek-Clover Creek Drainage Basin also know as Water Resource Inventory Area (WRIA) 12 as established by the Washington State Department of Ecology. The area includes the Cities of University Place, Lakewood, Milton, Dupont, and Fircrest, the Town of Steilacoom and areas of unincorporated Pierce County identified as urban growth areas including Parkland, Spanaway, Frederickson and South Hill. (The Cities of Fircrest and Milton are currently served by the City of Tacoma’s Central Wastewater Treatment Plant).
