BIGGS SERVICE DISTRICT WW TREATMENT - Biggs Junction, Oregon Wastewater Plant

BIGGS SERVICE DISTRICT WW TREATMENT is a municipal wastewater facility located in Biggs Junction, Oregon, United States. The plant serves a small population of 495 residents in this rural community along the Columbia River. The plant provides secondary treatment, which is the standard level required under the U.S. Clean Water Act for municipal wastewater. With a designed capacity of 299.05 megaliters and an annual discharge volume of 189.27 megaliters, the facility operates within its capacity. As a small agglomeration, it is subject to EPA NPDES permitting through the Oregon Department of Environmental Quality. The treated effluent is discharged into the Columbia River, a major waterway that forms the border between Oregon and Washington. The Columbia River flows westward to the Pacific Ocean, supporting diverse aquatic life including salmon runs and providing irrigation and drinking water for millions. The plant's discharge contributes to the river's overall water quality management.

The plant discharges into the Columbia River, which drains into the Pacific Ocean. The lower Columbia River is an ecologically sensitive area that supports critical salmon and steelhead migrations, as well as diverse bird and aquatic species. The river's flow is heavily regulated for hydropower and irrigation, making consistent water quality management important for downstream ecosystems.