Wastewater plants in Illinois

427 plants indexed. Showing 416 matching current filters.

416 plants matching filters

STOCKTON STW

Stockton, Illinois

Stockton STW is an advanced wastewater treatment plant in Stockton, Illinois, serving approximately 1,884 residents. It discharges treated water into local waterways, supporting the region's environmental health.

Advanced 1,884

BLUFFS STP

Bluffs, Illinois

BLUFFS STP is a secondary wastewater treatment plant serving the community of Bluffs, Illinois. It treats an average daily flow of approximately 340,690 gallons, with a designed capacity of 529,960 gallons.

Secondary 826

WINCHESTER STP and COLLECTION SYSTEM

Scott County, Illinois

The WINCHESTER STP and COLLECTION SYSTEM in Scott County, Illinois, is a secondary treatment plant serving approximately 1,593 people. It discharges treated wastewater into local waterways, supporting the region's environmental health.

Secondary 1,593

ONARGA STW

Onarga, Illinois

ONARGA STW is an advanced wastewater treatment plant in Onarga, Illinois, serving 1,368 people. It has a designed capacity of 946.35 m³/day and discharges 662.45 m³/day of treated effluent.

Advanced 1,368

SHUMWAY WASTE TREATMENT P

Shumway, Illinois

Shumway Waste Treatment Plant is a secondary treatment facility serving 266 residents in Shumway, Illinois. It discharges 83.28 units of treated wastewater daily, with a designed capacity of 102.21 units.

Secondary 266

GERMANTOWN STP

Germantown, Illinois

Germantown STP is a secondary treatment plant serving 1,246 people in Germantown, Illinois. It discharges 454.25 thousand gallons per day and operates under the US Clean Water Act.

Secondary 1,246

ALEXIS STP

Warren County, Illinois

ALEXIS STP is an advanced wastewater treatment plant serving 843 people in Warren County, Illinois. It discharges 734.37 units of treated effluent daily, with a designed capacity of 529.96 units.

Advanced 843

THEBES STP

Thebes, Illinois

Thebes STP is a secondary wastewater treatment plant serving 455 people in Thebes, Illinois. It discharges 151.42 cubic meters per day into the local watershed, with a designed capacity of 227.12 cubic meters per day.

Secondary 455

TAMAROA LAGOON

Tamaroa, Illinois

Tamaroa Lagoon is a secondary treatment plant serving 856 residents in Tamaroa, Illinois. It discharges 189.27 megaliters annually and has a designed capacity of 302.83 megaliters.

Secondary 856

EARLVILLE STP

Earlville, Illinois

Earlville STP is an advanced wastewater treatment plant serving 1,482 people in Earlville, Illinois. It discharges 738.16 million gallons per year and has a designed capacity of 1,438.45 million gallons.

Advanced 1,482

MENDOTA STP

Mendota, Illinois

Mendota STP serves approximately 12,000 residents in Mendota, Illinois. The plant operates under the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater facilities.

Not Reported 12,000

MARSEILLES STP

Marseilles, Illinois

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.

Not Reported 4,600

JOHNSTON CITY STP

Johnston City, Illinois

Johnston City STP is a municipal wastewater treatment plant in Illinois, USA, serving approximately 3,540 residents. The facility operates under the US Clean Water Act's NPDES permit program.

Not Reported 3,540

RUSHVILLE STW

Rushville, Illinois

RUSHVILLE STW serves approximately 3,229 residents in Rushville, Illinois. The plant operates under the US Clean Water Act, with NPDES permits regulating its discharge to protect local waterways.

Not Reported 3,229

OLNEY STP

Olney, Illinois

OLNEY STP serves approximately 8,968 residents in Olney, Illinois. The plant operates under the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater facilities of this scale.

Not Reported 8,968

ALTAMONT STP SOUTH

Altamont, Illinois

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.

Not Reported 1,615

GRANT PARK STP

Grant Park, Illinois

Grant Park STP serves 1,230 residents in Grant Park, Illinois. The plant operates under U.S. EPA and Illinois EPA regulations for small municipal wastewater systems.

Not Reported 1,230

MANTENO VILLAGE OF

Manteno, Illinois

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.

Not Reported 8,400

MOMENCE STP

Momence, Illinois

Momence STP is a municipal wastewater treatment plant serving approximately 3,310 residents in Momence, Illinois, United States. The facility discharges treated effluent into local waterways within the Kankakee River basin.

Not Reported 3,310

FARMINGTON STP

Forty Acres, Illinois

Farmington STP serves Forty Acres, Illinois, treating wastewater for approximately 3,138 residents. The plant operates under the U.S. Clean Water Act, with oversight from state and federal environmental agencies.

Not Reported 3,138

Frequently asked

How many wastewater treatment plants are in Illinois?

UtilityRadar indexes 427 wastewater treatment plants in Illinois, with treatment level, capacity, operator and discharge data on each record.

What is the largest wastewater treatment plant in Illinois?

Among the indexed plants, STOCKTON STW has the highest designed capacity at 2,082 m3/day.

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