427 plants indexed. Showing 256 matching current filters.
Lake County DPW Desplaines STP serves approximately 57,971 people in Lake County, Illinois. The plant operates under U.S. EPA NPDES permits, ensuring treated effluent meets Clean Water Act standards.
Plainfield WWTP and Collection System serves approximately 39,581 residents in Plainfield, Illinois. The plant operates under the US Clean Water Act, ensuring treated wastewater meets federal standards before discharge.
Creve Coeur STP serves approximately 9,500 residents in Creve Coeur, Illinois. The plant operates under the U.S. Clean Water Act, which mandates secondary treatment for municipal wastewater facilities.
MORTON STP 3 is a municipal wastewater treatment plant serving Morton, Illinois. It treats wastewater from a population of approximately 6,031 under U.S. Clean Water Act regulations.
PEKIN STP 1 is a municipal wastewater treatment plant serving Pekin, Illinois, USA. It treats wastewater from approximately 35,857 residents and discharges into the Illinois River watershed.
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.
Yorkville Bristol STP serves 15,240 residents in Yorkville, Illinois. The plant operates under the US Clean Water Act, discharging treated wastewater to the Fox River watershed.
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.
Huntley West Plant is a municipal wastewater facility serving Huntley, Illinois. It treats wastewater for approximately 9,345 residents under the US Clean Water Act framework.
Huntley East Plant is a municipal wastewater facility serving about 9,345 people in Huntley, Illinois, USA. It operates under the US Clean Water Act's NPDES permit program.
Harvard STP serves approximately 9,000 residents in Harvard, Illinois. The plant operates under the US Clean Water Act framework, treating municipal wastewater before discharge.
Crystal Lake STP 3 serves 1,832 residents in Crystal Lake, Illinois. The plant operates under the US Clean Water Act framework for small agglomerations.
Crystal Lake STP 1&2 serves approximately 78,000 residents in Crystal Lake, Illinois. The plant operates under the U. S. Clean Water Act, which mandates secondary treatment for municipal wastewater.
Algonquin WWTF serves approximately 23,276 people in Algonquin, Illinois. The plant operates under the US Clean Water Act via NPDES permits, treating municipal wastewater before discharge.
McHenry South WWTP serves Crystal Lake, Illinois, treating wastewater for approximately 15,000 residents. The plant operates under U.S. EPA and Illinois EPA regulations for surface water discharge.
McHenry Central STP is a municipal wastewater treatment plant serving approximately 11,928 people in McHenry, Illinois. The plant operates under the US Clean Water Act and EPA NPDES permitting framework.
Fox River Grove STP is a municipal wastewater treatment plant in Illinois, USA, serving about 7,734 residents. It operates under the US Clean Water Act with a designed capacity of 1.00 million gallons per day.
Richmond Sewage TMT Plant serves 1,874 residents in Richmond, Illinois, as part of the municipal wastewater infrastructure. The facility operates under the US Clean Water Act framework.
Woodstock South STP serves approximately 12,385 residents in Woodstock, Illinois. The plant operates under U.S. EPA and Illinois EPA regulations for municipal wastewater treatment.
Woodstock North STP serves about 12,385 people in Woodstock, Illinois. The plant operates under the U.S. Clean Water Act, with treatment standards set by the Illinois Environmental Protection Agency.
UtilityRadar indexes 427 wastewater treatment plants in Illinois, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, Lake County DPW Desplaines STP has the highest designed capacity at 1 m3/day.