New Madrid WWTP - Secondary Treatment Plant in New Madrid, Missouri

New Madrid WWTP is a municipal wastewater treatment facility located in New Madrid, Missouri, United States. The plant serves a population of approximately 3,116 residents, reflecting a small community in the Mississippi River region. As a secondary treatment plant, it provides biological treatment to reduce organic pollutants and suspended solids before discharge. The plant has a designed capacity of 1,476.31 megaliters per year and currently treats an annual volume of 757.08 megaliters. Under the U.S. Clean Water Act, facilities of this scale are typically regulated through National Pollutant Discharge Elimination System (NPDES) permits issued by the Missouri Department of Natural Resources. These permits set effluent limits to protect water quality in receiving streams. The treated effluent from New Madrid WWTP ultimately drains into the Mississippi River, one of the largest river systems in North America. The Mississippi River supports diverse aquatic life and provides drinking water for millions downstream. The plant's secondary treatment helps reduce nutrient and pollutant loads entering this major waterway, contributing to the ecological health of the river and the Gulf of Mexico, where the Mississippi discharges.

New Madrid WWTP discharges into the Mississippi River basin, which flows southward to the Gulf of Mexico. The Mississippi River is a critical ecological corridor supporting diverse fish, bird, and plant species. Downstream, nutrient loading from wastewater and agricultural runoff can contribute to hypoxic zones in the Gulf, making effective treatment important for regional water quality.