Chugwater Lagoon Wastewater Treatment Plant, Chugwater, Wyoming

Chugwater Lagoon is a municipal wastewater treatment facility located in Chugwater, Platte County, Wyoming. The plant serves a small population of 212 residents, reflecting the rural character of the community. It operates as a lagoon system, a common treatment approach for small agglomerations in the region. The plant provides secondary treatment, which meets the standard requirements under the U.S. Clean Water Act for municipal wastewater facilities. With a designed capacity of 94.64 megaliters and an annual discharge volume of 75.71 megaliters, the plant operates below its capacity. As a small facility, it is subject to EPA National Pollutant Discharge Elimination System (NPDES) permitting, administered by the Wyoming Department of Environmental Quality. The treated effluent is discharged to a local waterway within the Platte River watershed, which ultimately drains to the North Platte River and then the Platte River system. This basin supports agricultural irrigation and provides habitat for aquatic species. The plant's location inland and away from coastal areas reduces direct marine impact, though it plays a role in maintaining local water quality.

The plant discharges into a tributary of the Platte River, part of the larger Missouri River basin. The receiving waters support agricultural uses and provide habitat for fish and wildlife, including migratory birds along the Central Flyway. The semi-arid climate of southeastern Wyoming makes water quality management important for downstream communities and ecosystems.