Little Rock Little Maumelle WWTP - Arkansas Wastewater Treatment Plant

The Little Rock Little Maumelle WWTP is a municipal wastewater treatment facility located in Little Rock, Arkansas, serving a population of about 11,089. Situated in Pulaski County, the plant is part of the region's water infrastructure, managing wastewater from the surrounding community. As a US facility, the plant operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Arkansas Department of Energy and Environment - Division of Environmental Quality. For a plant serving approximately 11,000 people, secondary treatment is typically required, with possible additional nutrient removal depending on the receiving water body's sensitivity. The plant discharges into the Arkansas River watershed, which flows into the Mississippi River and ultimately the Gulf of Mexico. The downstream environment includes the Mississippi River Delta, a critical ecological zone supporting diverse aquatic life and migratory birds. The plant's operations contribute to maintaining water quality in this important river system.

The plant discharges into the Arkansas River, a major tributary of the Mississippi River. The Arkansas River flows through Arkansas and eventually joins the Mississippi, which empties into the Gulf of Mexico. This watershed supports diverse aquatic ecosystems, including fish and migratory bird habitats. The Gulf of Mexico receives nutrient loads from the Mississippi Basin, making nutrient management at inland plants relevant to downstream water quality.