Overview
Altamont STP South serves the community of Altamont, Illinois, treating municipal wastewater for a population of approximately 1,615. The plant operates under the U.S. Clean Water Act framework.
Altamont STP South is a wastewater treatment plant located in Altamont, Illinois, within Effingham County. The facility serves a population of around 1,615 residents, providing essential wastewater treatment for this small community in the Midwestern United States. As a U.S. plant serving fewer than 10,000 people, it falls under the Clean Water Act's National Pollutant Discharge Elimination System (NPDES) permitting program. The plant discharges treated effluent into local waterways that ultimately drain into the Mississippi River basin. The receiving water body supports aquatic life and contributes to the regional watershed health. Proper treatment helps protect downstream water quality in this agriculturally intensive region.
Environmental context
The plant's treated effluent flows into local streams within the Kaskaskia River watershed, which drains into the Mississippi River. This region supports diverse aquatic habitats and is important for migratory waterfowl. The surrounding agricultural landscape makes nutrient management a key ecological consideration to prevent downstream eutrophication.
Frequently asked questions
Altamont STP South is located near I-70 in Altamont, Effingham County, Illinois, United States.
The plant serves approximately 1,615 residents in the Altamont community.
The plant discharges treated effluent into local streams that are part of the Kaskaskia River watershed, ultimately flowing into the Mississippi River.
As a U.S. wastewater plant, it operates under the Clean Water Act and is subject to NPDES permit requirements enforced by the Illinois Environmental Protection Agency.
Small plants in the U.S. often use lagoon systems, activated sludge, or sequencing batch reactors to meet secondary treatment standards required by the Clean Water Act.
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