Fairfield S_T Facility Wastewater Treatment Plant, Fairfield, Idaho

The Fairfield S_T Facility is a municipal wastewater treatment plant located in Fairfield, Camas County, Idaho, United States. It serves a small population of 416 residents, reflecting the rural character of the area. The plant is situated on Soldier Road and operates under the regulatory framework of the U.S. Clean Water Act, which governs wastewater discharges through the National Pollutant Discharge Elimination System (NPDES) permit program. The plant provides secondary treatment, a standard level required by the Clean Water Act for municipal facilities to reduce organic matter and suspended solids. With a designed capacity of 1,059.91 volume units and a current discharge volume of 340.69 volume units, the plant operates well below its capacity, indicating room for future growth or seasonal fluctuations. The treated effluent is discharged into a local water body, likely a stream or river within the Camas Creek watershed, which ultimately drains into the Snake River Basin. This region is part of the larger Columbia River drainage system, supporting diverse aquatic life and agricultural water uses downstream. The plant's inland location and small scale reduce its environmental footprint compared to larger coastal facilities.

The Fairfield S_T Facility discharges into a local water body within the Camas Creek watershed, which flows into the Snake River and eventually the Columbia River. This basin supports critical habitat for native fish species, including salmon and steelhead, and provides irrigation water for agriculture. The plant's secondary treatment helps protect downstream water quality by reducing organic pollutants and suspended solids.