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Environmental compliance · county

Environmental compliance in DuPage County

3,003 active EPA-regulated sites in DuPage County, Illinois: 91 with an identified violation, 15 in significant violation, 437 inspections and $58.7 million in penalties over five years — EPA ECHO, as of October 18, 2026.

Cite: FACTANKER, https://factanker.com/us/il/dupage-county/environmental-compliance

How many facilities in DuPage County, Illinois are regulated by the EPA, and how many are in violation (as of October 18, 2026)?

MeasureValue
Active EPA-regulated sites3,003
Sites with an identified violation91
Sites in significant violation15
Inspections and evaluations, last 5 years437
Formal enforcement actions, last 5 years81
Penalties, last 5 years (shared federal cases once)$58.7 million

How many active facilities in DuPage County, Illinois fall under each EPA program?

A facility can be in several programs.

ProgramActive sites
Air (Clean Air Act)1,038
Water discharge permits (Clean Water Act, NPDES)824
Hazardous waste (RCRA)1,705
Drinking water systems (SDWA)82
Toxics Release Inventory reporters73
Greenhouse gas reporters (GHGRP)6

Which large facilities in DuPage County, Illinois does the EPA track, and are they in violation?

FacilityCompliance statusQuarters in violation (of 12)Penalties, 5 years
ADDISON SOUTH-A.J. LAROCCA STP
Addison, IL
Significant Violation4–
BENSENVILLE SOUTH STP
Bensenville, IL
Violation Identified12–
BLOOMINGDALE-REEVES WRF, VILLAGE OF
Bloomingdale, IL
Violation Identified12–
HENKEL CORP
Carol Stream, IL
Violation Identified12–
ITASCA, VILLAGE OF - PROSPECT AVENUE WWTP
Itasca, IL
Violation Identified12–
KNS COMPANIES INC
Carol Stream, IL
Violation Identified12–
WEST CHICAGO REGIONAL WASTEWATER TREATMENT PLANT
West Chicago, IL
Violation Identified12–
WOODRIDGE-GREENE VALLEY WWTP
Woodridge, IL
Violation Identified12–
US DOE ARGONNE NATIONAL LABORATORY
Argonne, IL
Violation10–
ROSELLE-J BOTTERMAN STP
Roselle, IL
Violation Identified7–
DOWNERS GROVE SANITARY DISTRICT
Downers Grove, IL
Violation Identified6–
DUPAGE CO PW-KNOLLWOOD STP
Burr Ridge, IL
Violation Identified5–
ELMHURST STP, CITY OF
Elmhurst, IL
Violation Identified5–
GLENDALE HEIGHTS - WPCF
Glendale Heights, IL
Violation Identified3–
WHEATON SANITARY DISTRICT WWTF
Wheaton, IL
Violation Identified3–
GLENBARD WASTEWATER AUTHORITY - MAIN WWTP
Glen Ellyn, IL
Violation Identified2–
EDGED CHICAGO LLC
Aurora, IL
Violation Identified1–
NALCO CO
Naperville, IL
Violation Identified1–
NEW WINCUP HOLDINGS INC
West Chicago, IL
No Violation Identified1–
NORTHWESTERN MEDICINE CENTRAL DUPAGE HOSPITAL
Winfield, IL
Violation Identified1–
NTT GLOBAL DATA CENTERS CH LLC
Itasca, IL
Violation Identified1–
WOOD DALE NORTH AND SOUTH STP
Wood Dale, IL
Violation Identified1–
BFI WASTE SYSTEMS OF NA LLC
Hanover Park, IL
No Violation Identified0–
BULK MOLDING COMPOUNDS INC
West Chicago, IL
No Violation Identified0–
CHAMPION PACKAGING & DIST INC
Woodridge, IL
No Violation Identified0–
COLLEGE OF DUPAGE
Glen Ellyn, IL
No Violation Identified0–
CYRUSONE AURORA FACILITY
Aurora, IL
No Violation Identified0–
ENSONO DATA CENTER
Downers Grove, IL
No Violation Identified0$20,000
GAS RECOVERY SERVICES OF ILLINOIS INC
Hanover Park, IL
No Violation Identified0–
GRAPHIC PACKAGING INTERNATIONAL LLC
Carol Stream, IL
No Violation Identified0–
ILLINOIS AMERICAN WATER COMPANY
Lemont, IL
No Violation Identified0–
INEOS USA LLC
Naperville, IL
No Violation Identified0$1.0 million
INX INTERNATIONAL INK
West Chicago, IL
No Violation Identified0–
ITASCA STP, VILLAGE OF
Itasca, IL
No Violation Identified0–
J.L. CLARK MFG. CO. - ATLAS TUBE DIV.
Downers Grove, IL
No Violation Identified0–
LOMBARD COMBUSTION TURBINE PEAKING UNITS
Lombard, IL
No Violation Identified0–
MOLEX INC.
Lisle, IL
No Violation Identified0–
PAXXUS INC
Addison, IL
No Violation Identified0–
PEPPERIDGE FARM INC
Downers Grove, IL
No Violation Identified0–
POWER SOLUTIONS INTERNATIONAL INC
Burr Ridge, IL
No Violation Identified0–
RRI ENERGY AURORA
Aurora, IL
No Violation Identified0–
TFC GROUP LLC
Addison, IL
No Violation Identified0–
VILLAGE OF HANOVER PARK STP #1
Hanover Park, IL
No Violation Identified0–
ZCOLO LLC - OAK BROOK
Oak Brook, IL
No Violation Identified0–

All figures for DuPage County · Illinois · United States

EPA Enforcement and Compliance History Online (ECHO), weekly national export. Counts cover active sites in the Facility Registry Service; inspections, formal actions and penalties cover the last five years, quarters in violation the last three years. The EPA attributes a case that covers several facilities to each of them; area penalty totals here count an amount shared through the same federal case once, facility figures show the amount attributed to that facility. Large facilities are Clean Air Act majors, Clean Water Act majors and large hazardous waste generators or handlers. Source record.

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