Glenns Ferry Sewage Treat Wastewater Treatment Plant, Idaho

Glenns Ferry Sewage Treat is a municipal wastewater treatment facility located in Glenns Ferry, Idaho, United States. The plant serves a small population of approximately 1,319 residents and operates under the regulatory framework of the U.S. Clean Water Act, which requires secondary treatment for municipal discharges. As a facility in a small agglomeration, it plays a key role in protecting local water resources. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. Its designed capacity is 1,665.58 cubic meters per day, with an average discharge volume of 435.32 cubic meters per day, indicating operational capacity well below design limits. The plant is not located near the coast, reducing direct marine impact. The treated effluent is discharged into the Snake River basin, which flows through southern Idaho and eventually joins the Columbia River. This watershed supports agricultural irrigation, aquatic habitats, and recreational uses. The plant's operation helps maintain water quality in this semi-arid region, where water resources are critical for both human and ecological needs.

The plant discharges into the Snake River basin, a major tributary of the Columbia River that drains into the Pacific Ocean. The Snake River supports diverse aquatic life, including salmon and steelhead, and is an important migratory corridor. The surrounding semi-arid landscape relies on this river for irrigation and drinking water, making effective wastewater treatment essential for maintaining water quality and ecosystem health.