Graysville Prudes Cr WWTP - Graysville, Alabama Wastewater Treatment Plant

Graysville Prudes Cr WWTP is a municipal wastewater treatment facility located in Graysville, Alabama, within Jefferson County. The plant serves a population of approximately 25,000 residents, placing it in the medium-agglomeration category for U.S. wastewater infrastructure. It is situated inland, away from coastal areas, and discharges into local waterways that ultimately drain into the Black Warrior River basin. Under the U.S. Clean Water Act, plants of this scale are required to meet secondary treatment standards through National Pollutant Discharge Elimination System (NPDES) permits. The Alabama Department of Environmental Management oversees permitting and compliance, ensuring that effluent limits protect water quality. Typical facilities serving this population employ activated sludge or similar biological treatment to meet regulatory requirements. The plant's receiving water body is part of the Black Warrior River watershed, which flows into the Tombigbee River and eventually the Mobile River system before reaching the Gulf of Mexico. This river network supports diverse aquatic life and provides drinking water for downstream communities. Proper treatment at Graysville Prudes Cr WWTP is essential to maintain water quality in this ecologically significant basin.

The plant discharges into a tributary of the Black Warrior River, which flows through Alabama's coal-rich region before joining the Tombigbee River. This river system is a critical habitat for fish and mussel species, including several endemic species. The watershed ultimately drains into Mobile Bay and the Gulf of Mexico, making nutrient and pollutant control important for preventing hypoxia in coastal waters.