Overview
ANNA STP serves Union County, Illinois, treating wastewater for approximately 5,136 residents. The plant operates under U.S. EPA and Illinois EPA regulations, ensuring compliance with Clean Water Act standards.
ANNA STP is a municipal wastewater treatment plant located in Union County, Illinois, serving a population of about 5,136. The facility is part of the region's infrastructure, managing domestic wastewater from the community. As a small-scale plant, it plays a key role in protecting local water quality. The plant operates under the regulatory framework of the U.S. Clean Water Act, administered by the Illinois Environmental Protection Agency. For small agglomerations like this, secondary treatment is typically required to reduce organic pollutants and suspended solids. The plant's design and operation align with state and federal guidelines to ensure effective treatment. The treated effluent is discharged into local waterways that drain into the Mississippi River basin, ultimately reaching the Gulf of Mexico. The plant's operations help safeguard downstream aquatic ecosystems and support the ecological health of the region's rivers and streams.
Environmental context
The plant discharges into tributaries of the Mississippi River, which flows into the Gulf of Mexico. The local watershed supports diverse aquatic life and is part of a larger ecosystem that includes wetlands and floodplains. Proper treatment is essential to prevent nutrient pollution and protect downstream habitats.
Frequently asked questions
ANNA STP is located in Union County, Illinois, United States, serving the local community with wastewater treatment.
ANNA STP serves approximately 5,136 residents in the Union County area.
The plant discharges treated effluent into local waterways that are part of the Mississippi River basin, eventually reaching the Gulf of Mexico.
ANNA STP operates under the U.S. Clean Water Act, with permits issued by the Illinois Environmental Protection Agency, requiring compliance with discharge limits.
Plants of this scale typically use secondary treatment processes, such as activated sludge or lagoons, to meet EPA standards for organic and solids removal.
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