26,154 plants indexed worldwide.
Plants where treatment level information is not publicly available.
Belvidere STP serves approximately 41,500 residents in Belvidere, Illinois. The plant operates under the U.S. Clean Water Act, with NPDES permits regulating its discharge to protect local waterways.
Rock Island STP SW serves approximately 5,040 people in Rock Island, Illinois. The plant operates under the U.S. Clean Water Act, which mandates secondary treatment for municipal wastewater.
Rock Island Main STP serves 44,356 people in Rock Island, Illinois. The plant discharges treated wastewater into the Mississippi River system, supporting local water quality and downstream ecosystems.
Moline South WWTP serves approximately 43,768 residents in Moline, Illinois. The plant discharges treated wastewater into the Mississippi River basin, supporting local water quality and downstream ecosystems.
Moline North Slope Sewage serves Rock Island, Illinois, treating wastewater for approximately 25,202 residents. The plant operates under the US Clean Water Act's NPDES permit program.
MILAN SEW TREATMENT PLANT serves Milan, Illinois, treating wastewater for approximately 6,300 residents. The plant operates under the U.S. Clean Water Act via an EPA NPDES permit, discharging treated effluent into local waterways.
East Moline Regional STP serves approximately 42,683 people in East Moline, Illinois. The plant operates under the U.S. Clean Water Act, which mandates secondary treatment for municipal wastewater facilities of this scale.
E Peoria Sewage Plant No 3 serves approximately 7,000 residents in East Peoria, Illinois. The facility operates under the U.S. Clean Water Act, with discharge regulated by the Illinois Environmental Protection Agency.
East Peoria Sewage TP 1 serves approximately 24,500 residents in East Peoria, Illinois. The plant operates under the U.S. Clean Water Act, with NPDES permits regulating its discharge to protect local waterways.
WASHINGTON STP 2 serves Washington, Illinois, treating wastewater for approximately 13,325 residents. The plant operates under the U.S. Clean Water Act framework, with discharge regulated by the Illinois Environmental Protection Agency.
Washington STP 1 serves approximately 6,038 people in Washington, Illinois, treating municipal wastewater before discharge. The plant operates under the U.S. Clean Water Act's NPDES permit program.
EL PASO STP serves El Paso, Illinois, treating wastewater for a small community. The plant operates under U.S. EPA and Illinois EPA regulations, discharging into local waterways.
Braidwood STP serves approximately 3,800 residents in Braidwood, Illinois. The plant operates under the U.S. Clean Water Act, which mandates secondary treatment for municipal wastewater facilities.
Highland STP serves approximately 9,400 residents in Highland, Illinois. The plant operates under U.S. Clean Water Act regulations, treating municipal wastewater before discharge to local waterways.
Edwardsville STP serves approximately 20,240 residents in Edwardsville, Illinois. The plant operates under the U.S. Clean Water Act, which governs wastewater treatment and discharge standards.
Granite City Regional WWTP and COLL System serves approximately 109,607 people in Madison, Illinois. The plant operates under the U. S. Clean Water Act, with NPDES permits regulating its discharge to protect local waterways.
Alton STP is a municipal wastewater treatment plant serving approximately 53,721 people in Alton, Illinois, United States. It operates under the US Clean Water Act framework.
EAST ALTON STP serves approximately 7,169 people in East Alton, Illinois. The plant operates under the U.S. Clean Water Act, which mandates secondary treatment for municipal wastewater facilities.
Collinsville STP serves approximately 34,578 residents in Collinsville, Illinois. The plant operates under the U.S. Clean Water Act, with NPDES permits regulating its discharge to protect local waterways.
Wood River STP serves approximately 18,000 residents in Wood River, Illinois. The plant operates under the U.S. Clean Water Act, with NPDES permits regulating its discharge to protect local waterways.