North Bonneville S_T FAC Wastewater Treatment Plant, Washington, USA

North Bonneville S_T FAC is a municipal wastewater treatment plant located in North Bonneville, Skamania County, Washington, United States. The facility serves a small population of 965 residents, reflecting its role in a rural community along the Columbia River Gorge region. The plant provides secondary treatment, which is the standard level required by the US Clean Water Act for municipal wastewater facilities. With a designed capacity of 473.18 units and a corresponding discharge volume, the plant is sized appropriately for its service population. As a US facility, it operates under the National Pollutant Discharge Elimination System (NPDES) permit program, administered by the Washington State Department of Ecology. The plant's treated effluent is discharged into the Columbia River watershed, which ultimately flows to the Pacific Ocean. The Columbia River is a major ecological and economic resource, supporting diverse aquatic life including salmon runs. The plant's secondary treatment helps protect water quality in this important river system.

The plant discharges into the Columbia River basin, which drains into the Pacific Ocean. The Columbia River supports critical salmon and steelhead populations, making water quality protection essential. Secondary treatment reduces organic pollutants and suspended solids, helping maintain the river's ecological health for fish and other aquatic species.