Tunica Co UD Mhoon Sewer Company - Secondary Wastewater Treatment in Tunica County, Mississippi

Tunica Co UD Mhoon Sewer Company is a municipal wastewater treatment facility located in Tunica County, Mississippi, United States. The plant serves a small population of 208 residents and operates under the regulatory framework of the US Clean Water Act, which requires secondary treatment for municipal discharges. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 94.64 megaliters per year, the facility treats wastewater from the local community before discharge. As a small-scale plant, it is subject to EPA National Pollutant Discharge Elimination System (NPDES) permitting, which sets effluent limits to protect water quality. The treated effluent is discharged into a local water body, ultimately contributing to the Mississippi River basin. The plant's inland location, over 50 km from the coast, reduces direct marine impact. Its operation helps maintain water quality in the region's streams and rivers, supporting aquatic life and downstream ecosystems.

The plant discharges into a receiving water body within the Mississippi River basin, which drains into the Gulf of Mexico. The watershed supports diverse aquatic habitats and is an important migratory corridor for fish and birds. The plant's secondary treatment reduces pollutant loads, helping to protect downstream water quality in this ecologically significant river system.