Roberts S_T Facility | Secondary Wastewater Treatment in Jefferson County, Idaho

Roberts S_T Facility is a municipal wastewater treatment plant located in Jefferson County, Idaho, United States. It serves a small population of 580 residents, reflecting its role in a rural community. The plant is situated inland, far from coastal waters, and its operations are governed by state and federal environmental standards. The plant provides secondary treatment, which is the standard level required by the U.S. Clean Water Act for municipal facilities of this scale. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The plant has a designed capacity of 378.54 megaliters per year and currently discharges 151.42 megaliters annually, indicating it operates well below capacity. 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 ecological corridor in the Pacific Northwest. The plant's discharge is regulated under the National Pollutant Discharge Elimination System (NPDES) to protect water quality in the receiving waters.

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 trout, and its water quality is critical for regional agriculture and recreation. The plant's secondary treatment helps reduce nutrient and pollutant loads, protecting downstream ecosystems.