Overview
Metropolis STP serves approximately 7,867 residents in Metropolis, Illinois. The plant operates under the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater facilities.
Metropolis STP is a municipal wastewater treatment plant located in Metropolis, Illinois, serving a population of around 7,867. The facility is situated near the Ohio River in the southern part of the state, within the Mississippi River basin. As a U.S. wastewater treatment plant serving a small population, Metropolis STP is subject to the Clean Water Act and National Pollutant Discharge Elimination System (NPDES) permitting. The U.S. Environmental Protection Agency and the Illinois Environmental Protection Agency oversee compliance, typically requiring secondary treatment for municipal plants of this scale. The plant's treated effluent likely discharges into the Ohio River, which flows into the Mississippi River and ultimately the Gulf of Mexico. This downstream connection supports diverse aquatic life and is an important migratory corridor for fish and birds.
Environmental context
The plant's receiving water body is likely the Ohio River, which drains into the Mississippi River and then the Gulf of Mexico. The Ohio River supports a variety of fish species and is an important waterway for regional ecology. The area is part of the Mississippi River basin, which is ecologically significant for its floodplain habitats and migratory bird routes.
Frequently asked questions
Metropolis STP is located at 6 Universal Way, Metropolis, Illinois, 62960, United States, near the Ohio River in Massac County.
The plant serves approximately 7,867 residents in the Metropolis area.
The plant likely discharges treated effluent into the Ohio River, which flows into the Mississippi River and eventually the Gulf of Mexico.
As a U.S. municipal plant, Metropolis STP operates under the Clean Water Act and is regulated through an NPDES permit issued by the Illinois Environmental Protection Agency.
For small populations like 8,000, secondary treatment is typically required under the Clean Water Act, which removes at least 85% of organic matter and suspended solids.
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