427 plants indexed. Showing 412 matching current filters.
Divernon Treatment Facility is a secondary-level municipal plant serving about 1,200 residents in Divernon, Illinois. It discharges treated wastewater into local waterways under U.S. EPA and state regulatory oversight.
Williamsville STP is a secondary treatment plant serving 1,439 people in Sangamon County, Illinois. It discharges 946.35 m³/day of treated wastewater, with a designed capacity of 1,779.14 m³/day.
BDM Sewer Commission STP is a secondary treatment plant in Sangamon County, Illinois, serving 1,471 people. It discharges 681.37 million gallons per year into local waterways.
Annawan STP is a secondary wastewater treatment plant serving 886 residents in Annawan, Illinois. It discharges 302.83 m³/day of treated effluent and has a designed capacity of 605.66 m³/day.
ATKINSON STP is a secondary treatment plant serving 1,158 people in Henry County, Illinois. It discharges 378.54 m³/day of treated wastewater into local waterways.
ORION STP is an advanced wastewater treatment plant in Orion, Illinois, serving a population of 1,995. It discharges treated water into local waterways, supporting environmental health in the region.
Winnebago STP is an advanced wastewater treatment plant in Winnebago, Illinois, serving approximately 3,500 people. It discharges treated water into local waterways, supporting the Rock River basin ecosystem.
CAPRON STP is a secondary treatment plant serving 961 people in Poplar Grove, Illinois. It discharges 264.98 thousand cubic meters of treated wastewater annually, with a designed capacity of 1,135.62 thousand cubic meters.
The Port Byron Sewers and STP is an advanced wastewater treatment plant serving 1,313 people in Port Byron, Illinois. It discharges treated water into the Mississippi River basin, supporting local water quality.
ANDALUSIA STP is a secondary wastewater treatment plant in Andalusia, Illinois, serving 1,178 people. It discharges 378.54 megaliters annually and has a designed capacity of 832.79 megaliters.
South Pekin STP is a secondary treatment plant serving 1,251 people in Tazewell County, Illinois. It discharges 473.18 million gallons per year and operates under the US Clean Water Act.
Mackinaw Village of wastewater treatment plant serves 1,621 people in Mackinaw, Illinois, with secondary treatment. The facility discharges 548.89 thousand cubic meters annually, operating under US EPA NPDES regulations.
Tremont STP is a secondary wastewater treatment plant in Tremont, Illinois, serving a population of 2,109. It discharges approximately 794.94 million gallons per year and has a designed capacity of 832.79 million gallons per year.
Hanna City STP is a secondary wastewater treatment plant serving 1,310 people in Hanna City, Illinois. It discharges treated effluent into local waterways, operating under US EPA and Illinois EPA regulations.
GRIDLEY STP is a secondary wastewater treatment plant serving Gridley, Illinois, with a designed capacity of 681.37 volume units and an average discharge of 492.10 volume units.
COLFAX STP is a secondary wastewater treatment plant serving Colfax, Illinois. It treats approximately 877 residents with a discharge volume of 302.83 and a designed capacity of 416.39.
ST JACOB STP is a secondary wastewater treatment plant serving St. Jacob, Illinois. It treats approximately 227 cubic meters of wastewater daily with a designed capacity of 530 cubic meters.
Alhambra STP is a secondary treatment plant serving 603 people in Madison County, Illinois. It discharges 227.13 megaliters per year and has a designed capacity of 378.54 megaliters.
Worden Wastewater Treatment System serves approximately 1,108 residents in Worden, Illinois, providing secondary treatment. The plant discharges treated effluent into local waterways, supporting downstream water quality in the Mississippi River basin
FAYETTEVILLE STP is a secondary treatment plant in Cahokia Heights, Illinois, serving 382 people. It discharges 151.42 megaliters of treated wastewater annually, operating under U.S. EPA NPDES regulations.
UtilityRadar indexes 427 wastewater treatment plants in Illinois, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, WILLIAMSVILLE STP has the highest designed capacity at 1,779 m3/day.