MENAN S_T FACILITY Wastewater Treatment Plant, Jefferson County, Idaho

MENAN S_T FACILITY is a municipal wastewater treatment plant located in Jefferson County, Idaho, United States. The plant serves a small population of 741 residents, reflecting its role in a rural community. It operates under the regulatory framework of the US Clean Water Act, which requires secondary treatment as a minimum standard for municipal wastewater facilities. The plant provides secondary treatment, a biological process that removes organic matter and suspended solids. Its designed capacity is 1097.77 thousand cubic meters per year, while the actual discharge volume is 567.81 thousand cubic meters per year, indicating operational capacity below design. The plant is not located near coastal areas, being over 50 km from the coast. The treated effluent is discharged into local waterways that ultimately drain into the Snake River basin, a major tributary of the Columbia River. The Snake River supports diverse aquatic life and is an important migratory corridor for salmon and steelhead. The plant's operations contribute to protecting water quality in this ecologically significant watershed.

The plant discharges into the Snake River basin, which flows into the Columbia River and eventually reaches the Pacific Ocean. The Snake River supports a variety of fish species, including salmon and steelhead, making it an important ecological corridor. The region's semi-arid climate and agricultural land use mean that maintaining water quality is critical for both ecosystem health and downstream water users.