427 plants indexed. Showing 267 matching current filters.
LaSalle WWTP in Marseilles, Illinois serves approximately 12,000 people. The plant operates under the US Clean Water Act, discharging treated wastewater into the Illinois River watershed.
Lawrenceville STP serves 5,700 residents in Lawrenceville, Illinois. The plant operates under the US Clean Water Act, discharging treated wastewater into the Wabash River watershed.
LEBANON STP serves approximately 4,057 residents in Lebanon, Illinois. The plant operates under the US Clean Water Act, which governs wastewater treatment standards for municipal facilities.
LEMONT WRP is a municipal wastewater treatment plant serving Lemont, Illinois, USA. It treats wastewater for approximately 16,000 residents and discharges into the local watershed within the Mississippi River basin.
Le Roy Sewage Treatment Plant serves the village of Le Roy, Illinois, treating wastewater for approximately 3,566 residents. The plant discharges into local waterways within the Mississippi River basin.
Libertyville STP serves approximately 22,500 residents in Libertyville, Illinois. The plant discharges treated wastewater into the local watershed, ultimately draining to Lake Michigan via the Des Plaines River.
Lincoln Sewerage System serves approximately 21,920 residents in Lincoln, Illinois. The plant discharges treated wastewater into local waterways, supporting the region's water quality.
Lindenhurst STP serves approximately 14,861 residents in Lindenhurst, Illinois. The plant is part of the municipal wastewater infrastructure for Lake County.
Litchfield STP serves approximately 7,400 residents in Litchfield, Illinois. The plant operates under U.S. Clean Water Act regulations, with discharge likely to a local waterway in the Mississippi River basin.
Lockport Bonnie Brae STP North Basin serves 6,500 people in Will County, Illinois. The plant discharges treated wastewater into local waterways within the Des Plaines River watershed.
LOCKPORT VILLAGE OF wastewater treatment plant serves Lockport, Illinois, USA. It treats municipal wastewater for approximately 19,391 residents under US EPA NPDES regulations.
Macomb Sewage Treat Plant serves approximately 22,000 residents in Macomb, Illinois. The facility operates under the U.S. Clean Water Act, with oversight from the Illinois Environmental Protection Agency.
Manhattan STP serves about 7,093 residents in Manhattan, Illinois. The plant discharges treated wastewater into local waterways, supporting the region's water quality.
MANITO STP serves the village of Manito, Illinois, treating wastewater for approximately 1,344 residents. The plant is located inland, over 50 km from the coast, and discharges into the local watershed.
MANTENO VILLAGE OF wastewater treatment plant serves Manteno, Illinois, USA. It treats wastewater for approximately 8,400 residents under the US Clean Water Act framework.
MARENGO STP serves Marengo, Illinois, treating wastewater for approximately 7,637 residents. The plant operates under US EPA and Illinois EPA regulations, discharging treated effluent into local waterways.
MARISSA STP serves approximately 2,500 residents in Marissa, Illinois. The plant operates under the U.S. Clean Water Act, with NPDES permits regulating its discharge to protect local waterways.
MARSEILLES STP serves 4,600 residents in Marseilles, Illinois. The plant discharges treated wastewater into the Illinois River basin, supporting local water quality in the Mississippi River watershed.
Marshall STP serves the community of Marshall, Illinois, treating wastewater for approximately 4,165 residents. The plant discharges into local waterways within the Wabash River basin.
Mascoutah City Of wastewater treatment plant serves approximately 7,750 residents in Saint Clair County, Illinois, United States. The plant operates under the US Clean Water Act framework.