Superior Lagoon Wastewater Treatment Plant, Superior, Wyoming

Superior Lagoon is a municipal wastewater treatment facility located in Superior, Wyoming, a small town in Sweetwater County. The plant serves a population of approximately 336 residents, making it a small-scale treatment operation typical of rural communities in the western United States. The plant provides secondary treatment, which is the standard level required by the U.S. Clean Water Act for municipal wastewater. With a designed capacity of 189.27 megaliters per year and a current discharge volume of 113.56 megaliters per year, the plant operates well within its capacity. As a lagoon system, it relies on natural biological processes to treat wastewater before discharge. The treated effluent from Superior Lagoon is released into local waterways that drain into the Green River basin, part of the larger Colorado River system. This region is arid and ecologically sensitive, making proper wastewater treatment essential for protecting downstream water quality and supporting aquatic habitats.

Superior Lagoon discharges into local streams that flow into the Green River, a major tributary of the Colorado River. The Colorado River basin supports diverse aquatic life and provides water for millions of people across the southwestern United States. The arid climate of Wyoming makes water conservation and quality protection critical for maintaining ecosystem health and meeting downstream water needs.