Medicine Bow Lagoon Wastewater Treatment Plant, Medicine Bow, Wyoming

Medicine Bow Lagoon is a wastewater treatment facility located in Medicine Bow, Carbon County, Wyoming, serving a small population of 284 residents. The plant operates under the U.S. Clean Water Act, which requires advanced treatment for discharges to sensitive water bodies. As a lagoon system, it provides advanced treatment through natural biological processes, meeting stringent effluent standards. The plant has a designed capacity of 416.39 cubic meters per day and currently treats an average daily flow of 227.13 cubic meters. Its location in the high plains of Wyoming means the plant must manage cold-weather performance and seasonal variability. The treated effluent is discharged to a local watercourse that drains into the North Platte River basin, eventually reaching the Missouri River and the Gulf of Mexico. This watershed supports agricultural irrigation, livestock watering, and aquatic habitats in a semi-arid region.

The plant's discharge enters a tributary of the North Platte River, which flows through Wyoming and Nebraska before joining the Missouri River. The North Platte River system supports diverse aquatic life, including native fish species and migratory birds along the Central Flyway. Downstream waters are used for irrigation and municipal supply, making nutrient and pathogen removal critical for protecting both ecological and human uses.