DCRUA Twin Lakes POTW No 2 - Horn Lake, Mississippi Wastewater Treatment Plant

DCRUA Twin Lakes POTW No 2 is a publicly owned treatment works located at 5407 Caroline Drive in Horn Lake, DeSoto County, Mississippi. The plant serves a small community of approximately 1,010 residents and operates under the regulatory framework of the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater discharges. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 567.81 thousand gallons per day and an average discharge volume of 382.33 thousand gallons per day, the facility operates below its capacity, indicating adequate headroom for current demand. The plant is permitted under the National Pollutant Discharge Elimination System (NPDES), administered by the Mississippi Department of Environmental Quality. Treated effluent from the plant flows into local streams and ultimately reaches the Mississippi River, a major waterway that drains into the Gulf of Mexico. The plant plays a role in protecting water quality in the Lower Mississippi River basin, which supports diverse aquatic life and provides drinking water for millions downstream.

The plant discharges into tributaries of the Lower Mississippi River, which flows into the Gulf of Mexico. This region is part of the Mississippi River Basin, a critical ecological corridor for migratory birds and aquatic species. The discharge contributes to nutrient loading concerns in the Gulf, where seasonal hypoxia affects marine life. The plant's secondary treatment helps reduce organic pollutants but does not specifically target nutrients like nitrogen and phosphorus.