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| History of Southwest Suburban
Sewer District |
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Southwest Suburban Sewer District (the District)
was established in 1945 for the purpose of operating and maintaining the sewer
infrastructure installed by the Federal Government during World War II. The
District purchased the White Center trunk sewer from the Federal Government in
1954. At the time of incorporation, the District consisted of a 900 acre service
area around the White Center community. Through annexations, the District now
encompasses approximately a 10 square mile region serving the City of Burien,
the City of Normandy Park, portions of the City of Seattle, City of Des Moines,
City of Seatac, and a portion of ValVue Sewer District. The system, which is
tributary to the District’s two treatment plants includes 288 miles of
pipeline within the two drainage basins, the Salmon Creek Drainage Basin to the
north and the Miller Creek Drainage Basin to the south.
The District provides wastewater collection and operates two wastewater
treatment plants within its service boundary. The Salmon
Creek and Miller Creek
treatment plants began operation in 1957 and 1967, respectively. Both plants
were upgraded in 1972 with the provision of chlorine contact chambers and still
providing primary treatment.
In 1985, design began on secondary treatment upgrade. The Miller Creek plant
upgrade became operational in 1988, the Salmon Creek upgrade in 1989 and the
compost facility in 1990. The final phase, odor scrubbing, of both treatment
facilities became operational in November, 1991.
The District administrative office has
been located at 431 SW Ambaum Boulevard since its construction in 1964. |
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