Dubois S_T Facility Wastewater Treatment Plant, Dubois, Idaho

The Dubois S_T Facility is a municipal wastewater treatment plant located near the Dubois Municipal Airport in Dubois, Idaho, United States. It serves the small community of Dubois, with a population of 677, and is part of the state's wastewater infrastructure managed under the Clean Water Act. The plant provides secondary treatment, which is the standard level required by the U.S. Environmental Protection Agency (EPA) for municipal wastewater. Its designed capacity is 295.26 volume units, and it currently discharges 147.63 volume units, indicating it operates well below capacity. The facility is regulated under the National Pollutant Discharge Elimination System (NPDES) permit program, which sets effluent limits to protect water quality. The treated effluent is discharged to a local water body, likely a stream or river in the Clark County area. The plant's location in southeastern Idaho places it within the Upper Snake River watershed, which ultimately drains to the Snake River and then to the Columbia River. This region supports agricultural activities and diverse aquatic habitats, making proper treatment essential for downstream water quality.

The plant discharges into a local water body within the Upper Snake River basin, which flows into the Snake River and eventually the Columbia River. This watershed supports irrigated agriculture and provides habitat for native fish species such as cutthroat trout. The region's semi-arid climate means that maintaining water quality in these streams is critical for both ecological health and human use.