Dorris WWTF - Secondary Wastewater Treatment Plant in Dorris, California

Dorris WWTF is a municipal wastewater treatment facility located in Dorris, a small town in Siskiyou County, California. The plant serves a population of 886 residents and operates under secondary treatment standards, which is the minimum required by the US Clean Water Act for municipal wastewater. The plant has a designed capacity of 473.18 units and currently treats an average daily flow of 340.69 units. As a secondary treatment facility, it uses biological processes to remove organic matter and suspended solids. The plant is regulated under the National Pollutant Discharge Elimination System (NPDES) permit program, administered by the California State Water Resources Control Board. The treated effluent is discharged to a local water body, likely a tributary of the Klamath River system, which flows into the Pacific Ocean. The plant's operations help protect downstream water quality and aquatic habitats in the Klamath Basin, an ecologically significant region supporting diverse fish species including salmon and trout.

The plant discharges into a local watercourse that is part of the Klamath River watershed. The Klamath River flows through Oregon and California before reaching the Pacific Ocean. The watershed supports important aquatic ecosystems, including habitat for threatened and endangered fish species. The plant's secondary treatment helps reduce nutrient and pollutant loads to the river, contributing to the overall health of the downstream environment.