Overview
Monticello STP and Collection System serves approximately 5,365 residents in Monticello, Illinois. The plant treats municipal wastewater and discharges into the local watershed within the Upper Mississippi River Basin.
Monticello STP and Collection System is a municipal wastewater treatment facility located in Monticello, Piatt County, Illinois. Serving a population of around 5,365, the plant is part of the town's essential infrastructure for managing domestic wastewater from homes and businesses in the area. As a small-scale treatment plant, it operates under the U.S. Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for all discharges. For communities of this size, secondary treatment is typically mandated to reduce organic pollutants and suspended solids before discharge. The treated effluent is released into a local waterway that ultimately drains into the Upper Mississippi River Basin. This basin supports diverse aquatic life and provides drinking water for millions downstream. Proper treatment helps protect water quality in the region's rivers and streams.
Environmental context
The plant discharges into a tributary of the Sangamon River, which flows into the Illinois River and then the Mississippi River. This watershed supports a variety of fish and wildlife, including migratory birds and freshwater mussels. Maintaining effective treatment is crucial to prevent nutrient pollution and protect downstream ecosystems in the Mississippi River Basin.
Frequently asked questions
The plant is located at 268 RR Street, Monticello, Illinois, in Piatt County, United States.
The plant serves approximately 5,365 residents in the Monticello community.
The treated effluent is discharged into a local tributary of the Sangamon River, which flows into the Illinois River and ultimately the Mississippi River.
As a U.S. facility, it operates under the Clean Water Act and requires an NPDES permit issued by the Illinois Environmental Protection Agency, which sets limits on pollutant discharges.
For small communities of this size, secondary treatment is standard, involving biological processes to reduce organic matter and suspended solids before discharge.
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