BLY STP - Secondary Wastewater Treatment Plant in Bly, Oregon

BLY STP is a municipal wastewater treatment facility located in Bly, Oregon, within Klamath County. The plant serves a small population of 250 residents, reflecting the rural character of the area. As a secondary treatment plant, it provides biological treatment to remove organic matter and suspended solids before discharge. The plant operates under the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater. The National Pollutant Discharge Elimination System (NPDES) permit program, administered by the Oregon Department of Environmental Quality, governs its discharge. With a designed capacity of 264.98 thousand cubic meters per year, the plant is sized appropriately for its small service area. The treated effluent is discharged to local surface waters that drain into the Klamath River basin. The Klamath River flows through southern Oregon and northern California before reaching the Pacific Ocean. This watershed supports diverse aquatic life, including salmon and trout species, making water quality management important for downstream ecosystems.

The plant discharges into tributaries of the Klamath River, which flows through the Klamath Basin into the Pacific Ocean. This watershed is ecologically sensitive, supporting threatened fish species such as coho salmon and Lost River suckers. The region's semi-arid climate and agricultural water demands make maintaining water quality critical for both ecological health and human use.