Grantville WPCP No 3 - Secondary Wastewater Treatment Plant in Grantville, Georgia

Grantville WPCP No 3 is a municipal wastewater treatment plant located on Lone Oak Road in Grantville, Coweta County, Georgia. The facility serves a small population of 328 residents, reflecting its role as a local-scale treatment system within the broader Chattahoochee River watershed. The plant provides secondary treatment, which is the standard level required under the US Clean Water Act for municipal facilities. With a designed capacity of 189.27 million gallons per year and an actual discharge volume of 37.85 million gallons per year, the plant operates well below its capacity, indicating room for future growth. As a US facility, it is regulated under the National Pollutant Discharge Elimination System (NPDES) permit program, which sets effluent limits to protect water quality. The treated effluent from Grantville WPCP No 3 is discharged into local waterways that ultimately flow into the Chattahoochee River, a major water source for the region. The Chattahoochee River drains into the Apalachicola River and then into the Gulf of Mexico, supporting diverse aquatic ecosystems along its course. The plant's secondary treatment helps reduce nutrient and pollutant loads, protecting downstream water quality and aquatic life.

The plant discharges into tributaries of the Chattahoochee River, which flows through Georgia, Alabama, and Florida before reaching the Gulf of Mexico. The Chattahoochee River basin supports diverse aquatic species and provides drinking water for millions. Downstream, the Apalachicola River and its estuary are ecologically sensitive areas that benefit from reduced nutrient inputs from upstream treatment plants.