Lostine On Sites Wastewater Treatment Plant, Lostine, Oregon

Lostine On Sites is a municipal wastewater treatment facility located in Lostine, a small town in Wallowa County, Oregon, United States. The plant serves a population of 304 residents, reflecting its role in a rural community in the northeastern part of the state. The plant provides secondary treatment, which is the standard level required under the US Clean Water Act for municipal wastewater facilities. Secondary treatment typically involves biological processes to remove organic matter and suspended solids. The plant has a designed capacity of 113.56 megaliters per year and discharges a similar volume, indicating full utilization of its capacity. The treated effluent is discharged into a local water body that ultimately drains into the Wallowa River, a tributary of the Grande Ronde River, which flows into the Snake River and then the Columbia River. This watershed supports diverse aquatic life, including salmonid species, and the plant's operations are critical for protecting water quality in this ecologically sensitive region.

The plant discharges into the Wallowa River watershed, which flows into the Grande Ronde River, part of the Columbia River basin. This region supports important fish populations, including threatened salmon and steelhead. The plant's secondary treatment helps reduce nutrient and organic loading, protecting downstream aquatic habitats.