Riverside Lagoon Wastewater Treatment Plant, Carbon County, Wyoming

Riverside Lagoon is a wastewater treatment facility located in Carbon County, Wyoming, United States. It serves a small community of 52 people, reflecting its role as a local-scale treatment system in a rural setting. The plant is situated near Riverside Avenue in the county. The plant provides secondary treatment, a standard level for small communities in the United States under the Clean Water Act. With a designed capacity of 56.78 megaliters and an annual discharge volume of 30.28 megaliters, the facility operates within its capacity. As a small treatment plant, it is subject to state-level permitting under the National Pollutant Discharge Elimination System (NPDES), which regulates discharges to surface waters. The treated effluent from Riverside Lagoon is discharged into local waterways that ultimately drain into the North Platte River basin, part of the larger Missouri River watershed. This region supports diverse aquatic life and is important for downstream water quality in the semi-arid landscape of Wyoming.

The plant discharges into local streams that flow into the North Platte River, a major tributary of the Platte River system. This watershed supports coldwater fisheries and provides habitat for species such as trout. The semi-arid climate of Wyoming makes water quality management critical for maintaining ecological balance in downstream rivers and reservoirs.