Greenville WWTP - Secondary Treatment Plant in Greenville, Missouri

Greenville WWTP is a municipal wastewater treatment facility located on Sycamore Street in Greenville, Wayne County, Missouri. The plant serves a small population of 511 residents and operates under secondary treatment standards, which is the minimum required by the US Clean Water Act for municipal wastewater treatment. The facility has a designed capacity of 280.12 megaliters and currently discharges 151.42 megaliters annually, indicating ample capacity for future growth. As a secondary treatment plant, Greenville WWTP uses biological processes to remove organic matter and suspended solids from wastewater. This level of treatment is typical for small communities in the United States and meets the EPA's secondary treatment standards under the National Pollutant Discharge Elimination System (NPDES). The plant's permit is likely issued by the Missouri Department of Natural Resources, which oversees NPDES compliance in the state. The treated effluent from Greenville WWTP is discharged into a local waterway that ultimately drains into the Mississippi River basin. The plant's location inland, more than 50 km from the coast, means its discharge has no direct marine impact. The receiving water body supports local aquatic life and contributes to the overall water quality of the Mississippi River system, which is a critical ecological and economic resource for the region.

Greenville WWTP discharges treated wastewater into a tributary of the St. Francis River, which flows into the Mississippi River. The Mississippi River basin is one of the largest and most ecologically significant watersheds in North America, supporting diverse aquatic species and providing habitat for migratory birds. The plant's secondary treatment helps reduce organic pollutants and suspended solids, protecting downstream water quality in this sensitive river system.