Overview
Rosalia S_T Facility is a secondary wastewater treatment plant serving 640 residents in Rosalia, Washington, USA. It operates under the US Clean Water Act with an NPDES permit framework.
The Rosalia S_T Facility is a municipal wastewater treatment plant located in Rosalia, Whitman County, Washington, United States. It serves a small population of 640 residents, reflecting the rural character of the area. The plant is situated on Gashous Road and provides essential sanitation services to the local community. As a secondary treatment facility, the plant meets the standard requirements under the US Clean Water Act for municipal wastewater treatment. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The plant's designed capacity is 473.18 volume units, and it operates under the National Pollutant Discharge Elimination System (NPDES) permit program, which regulates discharges to surface waters. The plant's treated effluent is discharged into the local watershed, which ultimately drains into the Palouse River and then the Snake River, a major tributary of the Columbia River. This river system supports diverse aquatic life and is important for regional agriculture and recreation. The plant's location inland, away from the coast, reduces direct marine impact but still requires careful management to protect freshwater ecosystems.
Environmental context
The Rosalia S_T Facility discharges into the Palouse River basin, which flows into the Snake River and then the Columbia River before reaching the Pacific Ocean. This watershed supports a variety of fish species, including salmon and steelhead, which are ecologically and culturally significant. The plant's secondary treatment helps reduce nutrient and pollutant loads, protecting downstream water quality in this agriculturally intensive region.
Frequently asked questions
The Rosalia S_T Facility is located on Gashous Road in Rosalia, Whitman County, Washington, United States.
The facility serves a population of 640 residents in the Rosalia area.
The plant discharges treated effluent into the local watershed, which flows into the Palouse River and eventually the Snake and Columbia Rivers.
The plant operates under the US Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Washington State Department of Ecology.
The plant provides secondary treatment, which uses biological processes to reduce organic matter and suspended solids before discharge.
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