ELK CITY SEWAGE TREATMENT SYSTEM - Elk City, Idaho Wastewater Treatment Plant

The ELK CITY SEWAGE TREATMENT SYSTEM is a municipal wastewater facility located on School Drive in Elk City Census Designated Place, Idaho County, Idaho. It serves a small population of 360 residents, reflecting the rural character of the area in the Clearwater River region. The plant provides secondary treatment, the standard required by the US Clean Water Act for municipal wastewater facilities. With a designed capacity of 454.25 units and a current discharge volume of 204.41 units, the plant operates well within its capacity. As a US facility, it is regulated under the National Pollutant Discharge Elimination System (NPDES) permit program, administered by the Idaho Department of Environmental Quality. The treated effluent is discharged into the local watershed, which ultimately drains into the Clearwater River and then the Snake River, part of the Columbia River Basin. This system supports aquatic life and downstream water quality in the Pacific Northwest ecosystem.

The plant discharges into the Clearwater River watershed, which flows into the Snake River and then the Columbia River, reaching the Pacific Ocean. This region supports diverse aquatic species, including salmon and steelhead, making water quality management critical for ecological health.