Madison WWTP - Wastewater Treatment Plant in Madison County, Alabama

Madison WWTP is a municipal wastewater treatment facility located in Madison County, Alabama, serving an estimated population of 46,000. The plant is part of the region's water infrastructure, managing wastewater from residential and commercial sources in the county. As a U.S. facility serving a medium-sized agglomeration, Madison WWTP is subject to the Clean Water Act and operates under an NPDES permit issued by the Alabama Department of Environmental Management. Such permits typically require secondary treatment as a minimum, with additional nutrient controls if the receiving water body is sensitive. The plant's treated effluent is discharged into local waterways that ultimately drain into the Tennessee River basin, a major tributary of the Ohio and Mississippi Rivers. The downstream environment supports diverse aquatic life and is used for recreation and water supply, making effective treatment essential for water quality.

Madison WWTP discharges into streams within the Tennessee River watershed, which flows into the Ohio River and then the Mississippi River before reaching the Gulf of Mexico. The Tennessee River basin supports a variety of fish and wildlife, including several species of freshwater mussels and migratory birds. Proper treatment helps maintain water quality in this ecologically important river system.