Decatur Dry Creek WWTP - Decatur, Alabama Wastewater Treatment Plant

Decatur Dry Creek WWTP is a municipal wastewater treatment facility located in Decatur, Morgan County, Alabama, United States. It serves a population of approximately 50,772 residents, classifying it as a medium-sized treatment plant within the state's wastewater infrastructure. As a US-based facility, the plant operates under the National Pollutant Discharge Elimination System (NPDES) permit program, established by the Clean Water Act. This regulatory framework requires permits for any discharge of pollutants into navigable waters, with treatment standards typically including secondary treatment for municipal plants of this scale. The plant's effluent is discharged into the Tennessee River basin, which ultimately flows into the Ohio River and then the Mississippi River. The receiving water body is part of the Tennessee River watershed, a major tributary of the Ohio River. The downstream environment supports diverse aquatic life and provides water for municipal, industrial, and agricultural uses. The plant's discharge contributes to the overall water quality management in the region, with regulatory oversight ensuring compliance with state and federal standards.

The plant discharges into the Tennessee River basin, which flows into the Ohio River and then the Mississippi River before reaching the Gulf of Mexico. The Tennessee River supports a variety of fish species and provides habitat for freshwater mussels. The watershed is ecologically significant, with efforts to maintain water quality for recreation and biodiversity.