Plaquemine North WWTP - Secondary Treatment Plant in Plaquemine, Louisiana

Plaquemine North WWTP is a municipal wastewater treatment facility located in Plaquemine, Louisiana, United States. The plant serves a small population of approximately 500 residents in the northern part of the city, operating as part of the region's wastewater infrastructure. The facility provides secondary treatment, which is the standard level required by the US Clean Water Act for municipal plants. With a designed capacity of 1,324.89 thousand gallons per day and an average discharge volume of 454.25 thousand gallons per day, the plant operates well within its capacity. As a US facility, it is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Louisiana Department of Environmental Quality, ensuring compliance with effluent limits. The treated effluent is discharged into local waterways that ultimately drain into the Mississippi River, a major waterway that flows into the Gulf of Mexico. The plant plays a role in protecting downstream water quality, including the ecologically significant Mississippi River Delta and coastal wetlands, which support diverse aquatic life and migratory birds.

The plant's discharge enters local tributaries that flow into the Mississippi River, which carries water to the Gulf of Mexico. The Mississippi River Delta is a critical ecosystem supporting fisheries, wetlands, and migratory species. Secondary treatment helps reduce nutrient loads that could contribute to the hypoxic zone in the Gulf, an area of low oxygen that affects marine life.