Overview
FAIRFIELD STP is a secondary wastewater treatment plant serving Fairfield, Washington, USA. It treats approximately 595 residents with a designed capacity of 427.75 volume units and discharges 302.83 volume units.
FAIRFIELD STP is a municipal wastewater treatment facility located in Fairfield, Washington, United States. The plant serves a small population of approximately 595 residents, reflecting the rural character of the Spokane County area. It is situated along South State Highway 27, providing essential sanitation services to the local community. The plant operates with secondary treatment, which is the standard level required by the U.S. Clean Water Act for municipal wastewater facilities. Under the National Pollutant Discharge Elimination System (NPDES), plants of this scale must meet effluent limits to protect water quality. The facility has a designed capacity of 427.75 volume units and an average discharge volume of 302.83 volume units, indicating operational headroom. The treated effluent is discharged into a local water body, contributing to the regional hydrology. The plant's location in eastern Washington places it within the Columbia River basin, which ultimately drains to the Pacific Ocean. Proper treatment helps safeguard downstream aquatic ecosystems and supports the ecological health of the region.
Environmental context
The plant discharges into a receiving water body within the Columbia River basin, which flows through Washington and Oregon before reaching the Pacific Ocean. The watershed supports diverse aquatic life, including salmonid species that are ecologically and economically significant. Secondary treatment reduces organic pollutants and suspended solids, protecting downstream water quality and habitat integrity.
Frequently asked questions
FAIRFIELD STP is located at 28215 South State Highway 27, Fairfield, Spokane County, Washington, 99012, United States.
FAIRFIELD STP serves a population of approximately 595 residents in the Fairfield area.
FAIRFIELD STP discharges treated effluent into a local water body within the Columbia River basin, which ultimately flows to the Pacific Ocean.
FAIRFIELD STP provides secondary treatment, which is the standard required under the U.S. Clean Water Act for municipal wastewater facilities.
As a municipal wastewater plant in the United States, FAIRFIELD STP operates under the National Pollutant Discharge Elimination System (NPDES), which sets effluent limits to protect water quality. Secondary treatment is the minimum requirement for such facilities.
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