COBBLESTONE WWTP - Franklin County, Missouri Wastewater Treatment Plant

COBBLESTONE WWTP is a municipal wastewater treatment facility located in Franklin County, Missouri, United States. The plant serves a small population of 67 residents, reflecting its role in a rural or suburban setting within the state. The plant provides secondary treatment, which is the standard level required under the U.S. Clean Water Act for municipal wastewater. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The plant's designed capacity of 105.99 units and current discharge volume of 26.50 units indicate it operates well below its capacity. The treated effluent is discharged into a local waterway that ultimately drains into the Mississippi River basin. This region supports diverse aquatic life and is part of a larger watershed that flows to the Gulf of Mexico. The plant's operations help protect downstream water quality and ecosystems.

The plant discharges into a tributary of the Missouri River, which flows into the Mississippi River and eventually reaches the Gulf of Mexico. This watershed supports a variety of fish and wildlife species, including migratory birds. The plant's secondary treatment helps reduce nutrient loads that could contribute to hypoxia in the Gulf.