Meeteetse Lagoon Wastewater Treatment Plant, Meeteetse, Wyoming

Meeteetse Lagoon is a municipal wastewater treatment facility located in Meeteetse, Park County, Wyoming. It serves a small population of 327 residents, reflecting the rural character of the area. The plant is situated along Wyoming Highway 120 and provides essential sanitation services to this small community. The plant provides secondary treatment, which is the standard required by the US Clean Water Act for municipal wastewater facilities. With an annual discharge volume of 113.56 megaliters and a designed capacity of 189.27 megaliters, the plant operates well below its capacity. As a US facility, it operates under an EPA National Pollutant Discharge Elimination System (NPDES) permit issued by the Wyoming Department of Environmental Quality, ensuring compliance with federal water quality standards. The treated effluent is discharged into a local water body that ultimately drains into the Bighorn River basin, a tributary of the Yellowstone River. This watershed supports diverse aquatic life and is important for regional agriculture and recreation. The plant's secondary treatment helps protect downstream water quality in this ecologically sensitive semi-arid region.

The plant discharges into a local watercourse within the Bighorn River basin, which flows into the Yellowstone River and eventually the Missouri River system. This watershed supports cold-water fisheries, including trout species, and provides habitat for migratory birds. The semi-arid climate of Wyoming makes water quality protection critical for both ecological health and human uses such as irrigation and livestock watering.