EPA · discharge permits by state

Discharge permits in Illinois

10,926Current permits
266Major dischargers
2,400Individual permits

A major discharger is one EPA rates as significant on volume, toxicity or the water it reaches; the rest are minors. An individual permit is written for one operation, while general permit coverage applies a statewide permit to a site that qualifies for it.

This page gathers Illinois’s current permits three ways below — by the program they are issued under, by the city of the discharge, and by watershed. It names 7 programs, 713 cities and 1,064 watersheds. Each list says which set it covers.

Every permit’s record

Each of the 10,926 current permits in Illinois has a record page: the permittee, the receiving water, the status and dates, and its effluent limits and exceedances. Each city below lists its own; or every permit in Illinois, A to Z.

Pages: 1 2 3 4 5 6 7 8 9 10 11

By what is permitted in Illinois

By city

The 400 cities with the most permits. All 713 cities in Illinois with 3 or more permits are listed at every city in Illinois.

Watersheds inside Illinois 1,064

Every watershed with three or more permits in Illinois, most permits first.

All 1,064 watersheds in Illinois with 3 or more permits are named on one page at every watershed in Illinois.

Other states

Every state carrying three or more current permits, in alphabetical order.

Permits

Major dischargers first. Not every permit in Illinois is listed here.

Permit holder	NPDES ID	City	Program	Discharger	Receiving water
3M CORDOVA	IL0003140	CORDOVA		Major	MISSISSIPPI RIVER
A.J. LAROCCA WASTEWATER TREATMENT FACILITY	IL0027367	ADDISON	Publicly owned treatment works	Major	SALT CREEK
ABBVIE INC NORTH CHICAGO FACILITY	IL0001881	NORTH CHICAGO		Major	LAKE MICHIGAN
ADDISON - NORTH STP	IL0033812	ADDISON	Publicly owned treatment works	Major	SALT CREEK
ALGONQUIN WWTP, VILLAGE OF	IL0023329	ALGONQUIN	Publicly owned treatment works	Major	FOX RIVER
ALTO PEKIN LLC	IL0001953	PEKIN		Major	ILLINOIS RIVER
ALTON STEEL INC	IL0000612	ALTON		Major	MISSISSIPPI RIVER
ALTON STP, CITY OF	IL0027464	ALTON	Publicly owned treatment works	Major	MISSISSIPPI RIVER
AMERENENERGY MEDINA COGEN LLC	IL0004120	HUTSONVILLE		Major	WABASH RIVER
AMERICAN NICKELOID COMPANY	IL0001724	PERU		Major	ILLINOIS RIVER
ANTIOCH STP, VILLAGE OF	IL0020354	ANTIOCH	Publicly owned treatment works	Major	SEQUOIT CREEK-FOX RIVER-IL RIVER
AQUA ILLINOIS - UNIVERSITY PARK WWTF	IL0024473	UNIVERSITY PARK	Industrial pretreatment	Major	DEER CREEK
ARGONNE NATIONAL LABORATORY	IL0034592	ARGONNE		Major	SEE PERMIT
BALDWIN ENERGY COMPLEX	IL0000043	BALDWIN		Major	KASKASKIA RIVER AND DOZA CREEK
BARRINGTON WWTF	IL0021598	BARRINGTON	Publicly owned treatment works	Major	UNNAMED TRIB OF FLINT CREEK
BARTLETT STP, VILLAGE OF	IL0027618	BARTLETT	Publicly owned treatment works	Major	WEST BRANCH OF DUPAGE RIVER
BATAVIA WWTF, CITY OF	IL0022543	BATAVIA	Publicly owned treatment works	Major	FOX RIVER
BEARDSTOWN SANITARY DISTRICT STP	IL0025135	BEARDSTOWN	Publicly owned treatment works	Major	ILLINOIS RIVER
BELLEVILLE STP #1, CITY OF	IL0021873	BELLEVILLE	Publicly owned treatment works	Major	RICHLAND CREEK
BELVIDERE WASTEWATER TREATMENT PLANT	IL0027685	BELVIDERE	Publicly owned treatment works	Major	KISHWAUKEE RIVER TO ROCK RIVER
BENSENVILLE - SOUTH STP, VILLAGE OF	IL0021849	BENSENVILLE	Publicly owned treatment works	Major	ADDISON CREEK
BENTON NORTHWEST STP, CITY OF	IL0022365	BENTON	Publicly owned treatment works	Major	BIG MUDDY RIVER
BLOOMINGDALE-REEVES WRF, VILLAGE OF	IL0021130	BLOOMINGDALE	Publicly owned treatment works	Major	EAST BRANCH OF DUPAGE RIVER
BLOOMINGTON NORMAL WRD -WEST STP	IL0027731	BLOOMINGTON	Publicly owned treatment works	Major	SUGAR CREEK (SANGAMON BASIN)
BLOOMINGTON-NORMAL WRD SE WWTP	IL0073504	HEYWORTH	Publicly owned treatment works	Major	LITTLE KICKAPOO CREEK
BOLINGBROOK STP #1	IL0032689	BOLINGBROOK	Publicly owned treatment works	Major	EAST BRANCH OF DUPAGE RIVER
BOLINGBROOK STP #3, VILLAGE OF	IL0069744	BOLINGBROOK	Publicly owned treatment works	Major	DUPAGE RIVER
BOLINGBROOK WRF #2, VILLAGE OF	IL0032735	BOLINGBROOK	Publicly owned treatment works	Major	EAST BRANCH OF DUPAGE RIVER
BOSTIK, INC.	IL0001716	RINGWOOD		Major	UNNAMED TRIB TO NW BRANCH OF DUTCH CREEK
BRAIDWOOD STP, CITY OF	IL0054992	BRAIDWOOD	Publicly owned treatment works	Major	UNNAMED TRIBUTARY TO CLAYPOOL DITCH
CAIRO STP, CITY OF	IL0023825	CAIRO	Publicly owned treatment works	Major	OHIO RIVER
CANTON WEST STP, CITY OF	IL0027839	CANTON	Publicly owned treatment works	Major	BIG CREEK-SPOON RIVER-IL RIVER
CARBONDALE NORTHWEST STP, CITY OF	IL0027871	CARBONDALE	Publicly owned treatment works	Major	BIG MUDDY RIVER
CARBONDALE SOUTHEAST STP, CITY OF	IL0027898	CARBONDALE	Publicly owned treatment works	Major	UNNAMED TRIB TO CRAB ORCHARD CREEK
CARLINVILLE STP	IL0022675	CARLINVILLE	Publicly owned treatment works	Major	BRIAR CREEK
CARMI STP, CITY OF	IL0027910	CARMI	Publicly owned treatment works	Major	LITTLE WABASH RIVER
CAROL STREAM WRC	IL0026352	CAROL STREAM	Publicly owned treatment works	Major	KLEIN CREEK (DESPLAINES BASIN)
CARY WWTP, VILLAGE OF	IL0020516	CARY	Publicly owned treatment works	Major	FOX RIVER
CASEYVILLE TOWNSHIP EAST STP	IL0021083	O'FALLON	Publicly owned treatment works	Major	ELLEN CREEK
CATERPILLAR INC - EAST PEORIA FACILITY	IL0002291	EAST PEORIA		Major	ILLINOIS RIVER

What this page shows

This page covers Clean Water Act discharge permits (EPA NPDES register) for IL. It lists 10,926 permits, 266 majors, and 2,400 individuals.