Bunker Hill STP - Secondary Wastewater Treatment in Bunker Hill, Illinois

Bunker Hill STP is a municipal wastewater treatment plant located in Bunker Hill, Illinois, a small community in Macoupin County. The plant serves a population of 1,682 and operates under the regulatory framework of the U.S. Clean Water Act, which requires secondary treatment for municipal facilities. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 946.35 thousand gallons per day and an average discharge volume of 832.79 thousand gallons per day, the plant operates at a utilization rate that indicates effective capacity management. The treated effluent is discharged into local streams that flow into the Mississippi River basin. This region supports diverse aquatic life and provides important ecosystem services. The plant's operations help protect downstream water quality in the Mississippi River system.

The plant discharges into local waterways that are part of the Mississippi River basin, one of the largest drainage systems in North America. The downstream environment includes the Mississippi River, which supports diverse aquatic species and provides critical habitat for migratory birds and fish. The plant's secondary treatment helps reduce nutrient and pollutant loads, protecting water quality in this ecologically significant watershed.