Arab Gilliam Creek WWTP - Municipal Wastewater Treatment in Arab, Alabama

Arab Gilliam Creek WWTP is a municipal wastewater treatment facility located in Arab, Marshall County, Alabama, United States. The plant serves a population of approximately 4,025 residents, classifying it as a small to medium-sized facility under typical US regulatory frameworks. As a US-based plant, Arab Gilliam Creek WWTP operates under the Clean Water Act, administered by the Alabama Department of Environmental Management (ADEM) through the National Pollutant Discharge Elimination System (NPDES) permit program. Facilities of this scale typically employ secondary treatment or advanced treatment to meet permit limits for biochemical oxygen demand, total suspended solids, and other pollutants. The plant's treated effluent is discharged into a receiving water body within the Tennessee River basin, which ultimately flows into the Ohio River and then the Mississippi River to the Gulf of Mexico. The local watershed supports diverse aquatic life and provides recreational and ecological value to the region.

The plant discharges into a tributary of the Tennessee River, which flows into the Ohio River and then the Mississippi River before reaching the Gulf of Mexico. The Tennessee River basin is ecologically significant, supporting diverse fish species, mussels, and aquatic habitats. Downstream waters are used for recreation, fishing, and as a drinking water source for communities.