MAROA STP - Advanced Wastewater Treatment Plant in Maroa, Illinois

MAROA STP is an advanced wastewater treatment facility located in Maroa, Illinois, a small community in Macon County. The plant serves a population of approximately 1,531 residents, providing essential wastewater treatment services to the local area. The plant employs advanced treatment processes, ensuring high-quality effluent before discharge. With a designed capacity of 1,362.74 million gallons per day and an actual discharge volume of 719.23 million gallons per day, the facility operates well within its capacity. As a US-based plant, it operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permitting, which sets strict effluent limits to protect water quality. The treated wastewater from MAROA STP is discharged into local waterways that ultimately drain into the Mississippi River basin. The plant plays a crucial role in protecting downstream aquatic ecosystems and maintaining water quality in the region's rivers and streams.

The plant discharges into local streams that are part of the larger Mississippi River watershed. This region supports diverse aquatic life and provides important habitat for fish and wildlife. The advanced treatment helps minimize nutrient and pollutant loads, protecting downstream water bodies including the Mississippi River and the Gulf of Mexico.