Donahue East WWTP - Secondary Treatment Plant in Rapides Parish, Louisiana

Donahue East WWTP is a municipal wastewater treatment facility located in Rapides Parish, Louisiana, United States. The plant serves a small population of 128 residents, providing secondary treatment to meet local water quality standards. The plant operates under the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater. With a designed capacity of 94.64 units and a current discharge volume of 26.50 units, the facility has capacity to accommodate future growth. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The treated effluent is discharged into local waterways within the Red River basin, which ultimately drains to the Mississippi River and the Gulf of Mexico. The plant's inland location reduces direct marine impact, but its discharge contributes to the overall water quality of the regional watershed, supporting aquatic life and downstream ecosystems.

The plant discharges into the Red River basin, a major tributary of the Mississippi River that flows into the Gulf of Mexico. The watershed supports diverse aquatic habitats and is important for migratory fish species. The plant's secondary treatment helps protect downstream water quality in this ecologically significant river system.