Cook County, IL

The federal environmental record for Cook County (population 5,087,072): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.

Superfund NPL sites

218

federal cleanup sites

PFAS-detecting water systems

291

TRI facilities

2,017

open tank releases

Superfund NPL sites

Site	City	Status	Listed
Acme Steel Coke Plant	Chicago	on the NPL	03/07/2024
Estech General Chemical Company	Calumet City	on the NPL	09/30/2015
Lake Calumet Cluster	Chicago	on the NPL	03/04/2010
Schroud Property	Chicago	on the NPL	11/08/2019

Drinking water: PFAS testing

Public water systems serving Cook with at least one PFAS detection under UCMR5. The federal limit for PFOA and PFOS is 4 ng/L; EPA proposed in May 2026 to rescind the limits for the other compounds, which are shown for information.

System	Highest results	Reading
DIXMOOR IL0310660	PFOS: 5.5 ng/L PFOA: 4.8 ng/L	above final limit
HOMEWOOD IL0311350	PFOA: 4.3 ng/L	above final limit
SUMMIT IL0310060	PFBA: 8.9 ng/L	detected
CALUMET CITY IL0310390	PFPeA: 3.2 ng/L PFHxA: 3 ng/L	detected
MARKHAM IL0311770	PFHxA: 3 ng/L	detected
OAK FOREST IL0312190	PFBA: 9.3 ng/L	detected
SAUK IL0312790	4:2 FTS: 3.2 ng/L	detected
SOUTH HOLLAND IL0312970	PFBA: 7.3 ng/L	detected

On a system with detections? Testing and treatment options

Facilities reporting toxic releases (2024)

291 facilities in Cook filed TRI reports for 2024, totalling 15.7M lb released. The 25 largest by volume:

Facility	City	Top chemicals	Total released
WIELAND METALS INC	WHEELING	Copper, Zinc compounds	8.5M lb
ENVIRITE OF ILLINOIS INC	HARVEY	Manganese compounds, Zinc compounds	1.3M lb
A FINKL & SONS CO DBA FINKL STEEL - CHICAGO	CHICAGO	Manganese, Chromium	996k lb
INGREDION INC ARGO PLANT	BEDFORD PARK	n-Hexane, Ammonia	593k lb
BEFESA ZINC US INC.	CHICAGO	Zinc compounds, Manganese compounds	334k lb
CLEVELAND-CLIFFS RIVERDALE LLC	RIVERDALE	Manganese compounds, Zinc compounds	291k lb
REAL ALLOY RECYCLING LLC	CHICAGO HEIGHTS	Aluminum (fume or dust), Copper compounds	281k lb
CLEAN HARBORS RECYCLING SERVICES OF CHICAGO LLC	CHICAGO	Methanol, Ethylene glycol	257k lb
FORD MOTOR CO CHICAGO ASSEMBLY	CHICAGO	n-Butyl alcohol, 1,2,4-Trimethylbenzene	236k lb
NIPPON PAINT AUTOMOTIVE AMERICAS (NPAA)	LANSING	Xylene (mixed isomers), Toluene	179k lb
KOPPERS INC	CICERO	Maleic anhydride, Phthalic anhydride	163k lb
SIGNODE INDUSTRIAL GROUP LLC	BRIDGEVIEW	Lead And Lead Compounds, Certain glycol ethers	153k lb
WHEATLAND TUBE CO - CHICAGO DIV	CHICAGO	Xylene (mixed isomers), Certain glycol ethers	147k lb
ARDAGH METAL BEVERAGE USA INC RE : CHICAGO PLANT	CHICAGO	Certain glycol ethers, n-Butyl alcohol	138k lb
BELMONT PLATING WORKS	FRANKLIN PARK	Zinc compounds, Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	129k lb
GATTO INDUSTRIAL PLATERS INC.	CHICAGO	Zinc compounds, Nitrate compounds (water dissociable; reportable only when in aqueous solution)	120k lb
CHICAGO HEIGHTS STEEL	CHICAGO HEIGHTS	Certain glycol ethers	113k lb
DYNABURR CHICAGO INC.	NORTHLAKE	Zinc compounds	84k lb
W R GRACE & CO	CHICAGO	Molybdenum trioxide, Nickel And Nickel Compounds	82k lb
CHEM-PLATE INDUSTRIES	ELK GROVE VILLAGE	Zinc compounds, Nickel And Nickel Compounds	80k lb
SAFETY-KLEEN SYSTEMS	DOLTON	Lead, Toluene	65k lb
BWAY CORP	CHICAGO	Certain glycol ethers, n-Butyl alcohol	64k lb
MONDELEZ GLOBAL LLC	CHICAGO	Ammonia	60k lb
MAGNETIC INSPECTION LABORATORY INC	ELK GROVE VILLAGE	Nitric acid, 1-Bromopropane	57k lb
ALLIED TUBE & CONDUIT CORP.	HARVEY	Xylene (mixed isomers), Chromium	57k lb

Underground fuel tanks

EPA's UST Finder records 7,547 tank facilities in Cook: 5,133 tanks in service and 20,223 closed. 9,809 fuel releases are on record, of which 2,017 remain open. Open releases are cleanups that have not reached "no further action".

Radon

EPA maps Cook as Zone 2, moderate predicted indoor radon (2 to 4 pCi/L average). Radon and air quality are covered in depth on lung.com.

The record for one specific address

County figures blur what matters: distance. The Address Environmental Report runs these same federal datasets against one address and reports every site, tank, polluter and water result around it, with distances, in about a minute.

Get the report - $39

All federal cleanup sites on file

The wider Superfund enterprise inventory (SEMS) for Cook, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.

109TH PLACE TEAR GASCHICAGO
127TH STREET SOIL SITECHICAGO
136TH STREET DRUMCHICAGO
2500 LOOMIS VENTURE LLCCHICAGO
35TH PLACE ABANDONED TRAILERCHICAGO
4310 SOUTH INDIANA AVENUECHICAGO
4751 S. MORGANCHICAGO
4834 SOUTH HALSTEDCHICAGO
7501 SOUTH KEDZIE/76TH & ALBANYCHICAGO
76TH & ALBANYCHICAGO
A CHEMICAL COMPANYCHICAGO
ABEX CORP AMSCO DIV CHICAGO HEIGHTS PLANTCHICAGO HEIGHTS
ACME STEEL COCHICAGO
ACTION WRECKING INC.CHICAGO HEIGHTS
ALCO SPRINGS INDUSTRIES INCORPORATEDCHICAGO HEIGHTS
ALDENS INCORPORATED CHIPSCHICAGO
ALL CITY ENVIRONMENTAL SERVICESCHICAGO
ALLIED CORPORATIONCHICAGO
AMAZON.COM SERVICES LLC DXH1CHICAGO
AMBLESIDE RD & KEDVAL AVE IL HG SPILLS SITEDESPLAINES
AMCA INTERNATIONALPARK FOREST SOUTH
AMERICAN PLATING SITECHICAGO
AMERICAN POUCHCHICAGO
ANCHOR METAL FINISHNINGSCHILLER PARK
ANODIZING SPECIALISTSELK GROVE VILLAGE
APEX SMELTINGCHICAGO
ARCO HARVEY TECHNICAL CENTERHARVEY
ARLINGTON HEIGHTS MUNICIPAL LANDFILLARLINGTON HEIGHTS
ARTHUR STREET MERCURYBROOKFIELD
AUTO DEPOSITIONS INCORPORATEDCHICAGO
AUTOMATIC INDUSTRIAL PLATINGSCHAUMBURG
AVALON AVENUE DUMP SITECHICAGO
AVENUE O & 118TH STREETCHICAGO
BABE RUTH FIELD SITECHICAGO
BARTLETT TRAIN DERAILMENTBARTLETT
BELLWOOD INDUSTRIAL LLC (FORMER UNIVERSAL BLDG PRODUCTS PROPERTY)BELLWOOD
BENNETT ST. HGCHICAGO
BISBEE LINSEED COMPANYCHICAGO HEIGHTS
BLUE ISLAND PHENOL LLCBLUE ISLAND
BRUCO COCHICAGO
BTL SPECIALTY RESINSBLUE ISLAND
CAMRAS SCHOOL MERCURY SPILL SITECHICAGO
CARBOGRAPHICS, INCORPORATEDHARWOOD HEIGHTS
CHICAGO CITY OF CYANIDE INCIDENTCHICAGO
CHICAGO COPPER AND CHEMICAL COMPANYCALUMET PARK
CHICAGO DRUMSCHICAGO
CHICAGO INDUSTRIAL WASTE HAULERSALSIP
CHICAGO MODERN PLATING COMPANYCHICAGO
CHICAGO PARK DISTRICTCHICAGO
CHICAGO RIVER MYSTERY SHEENCHICAGO
CHICAGO SMELTING AND REFININGCHICAGO
CLARK/BLUE ISLANDBLUE ISLAND
COLLATERAL CHANNELCHICAGO
CONTINENTAL CHEMISTECHICAGO
COSDEN OIL & CHEMICAL COMPANYCALUMET CITY
COTTAGE GROVE LANDFILLCHICAGO
CRAWFORD ELECTRIC GENERATING STATIONCHICAGO
CRESCENT PLATING WORKS INCCHICAGO
CSX PCB DERAILMENTCHICAGO
CUNEO PRESSCHICAGO
DAN FORTH CORPORATIONELK GROVE VILLAGE
DAVID CHEMICAL SITECHICAGO
DE BOER LANDFILLPALOS HILLS
DES PLAINES STREET VIADUCT SITECHICAGO
DES PLAINES, IL. MOBILE HOMEDES PLAINES
DESPLAINES ASBESTOS TRAILERDES PLAINES
DIRKSEN FEDERAL BUILDINGCHICAGO
DOLTON HAZMATDOLTON
DOUBLE A METALSCHICAGO
DUTCH BOYCHICAGO
DUTCH MAID CLEANERSGLENVIEW
EAGLE PICHER ARGO PLANTSUMMIT
EAST PILSEN SOILCHICAGO
ECONOMY PLATING INC (CHICAGO)CHICAGO
EGAN MARINLEMONT
ELECTRO FINISHERS INCCHICAGO
ELLIS METAL COMPANYCHICAGO
ESTECH GENERAL CHEMICAL COMPANYCALUMET CITY
FORD HEIGHTS TIRE FIREFORD HEIGHTS
FORMER MATERIALS SERVICE CORPORATION YARD 18LYONS
FORRESTVILLE MERCURY SPILLCHICAGO
FORT DEARBORN US ARMY RESERVE BASEROSEMONT
FRANKLIN PARK DRUM SITEFRANKLIN PARK
FRITZ - MAR LANDFILL MINI #3CHICAGO HEIGHTS
GOR DRUM SITEBEDFORD PARK
GRAMM TRAILERHARVEY
GUERIN PREP-MERCURYRIVER GROVE
HANNAH MARINE CORPLEMONT
HANSON PARK ELEM SCHOOLCHICAGO
HARDING AVE MERCURY SPILLCHICAGO
HARRISON SHEET STEEL CO.CHICAGO
HARVEY GRQHARVEY
HEART OF CHICAGO AREA SOILS SITECHICAGO
I-55 SOUTH HYDROGEN PEROXIDE SPILLHODGKINS
I.W.I. INDUSTRIES WELLCOSUMMIT
IL ARMY NTL GD CSMSR FRMS3 FMS9NORTH RIVERSIDE
INGERSOLL PRODUCTSCHICAGO
INTERLAKE PROPERTY W H ICHICAGO
INTERNATIONAL HARVESTERCHICAGO
J PITT MELT SHOPCHICAGO
KLUCZYNSKI FEDERAL BUILDINGCHICAGO
LACROSSE STREET GASOLINE EMERGENCY RESPONSECHICAGO
LAGRANGE MERCURY SPILLLAGRANGE
LAKE CALUMET CLUSTERCHICAGO
LAKE CALUMET SMELTINGCHICAGO
LAKE SALVAGE COMPANYCHICAGO
LANSING SPILL SITELANSING
LENZ OIL SERVICE, INC.LEMONT
LEWIS TERRY RESIDENCELEMONT
LINDSAY LIGHT IICHICAGO
LIQUID DYNAMICSCHICAGO
LOBUE #2CHICAGO HEIGHTS
LOEWENTHAL METALS CORP.CHICAGO
MAINE TOWNSHIP HIGH SCHOOL SOUTHPARK RIDGE
MAPLE LAKE DRUMSPALOS HILLS
MARKHAM DRUMSHARVEY
MARKHAM DUMPMARKHAM
MARVEL ENGINEERINGMELROSE PARK
MASON STREET MERCURYCHICAGO
MAY FIELD MERCURY SITECHICAGO
MCC CONSTRUCTIONCHICAGO
MERCURY VAPOR PROCESSING TECHNOLOGIESRIVERDALE
MICHAEL REESE/CARNOTITE REDUCTIONCHICAGO
MIDWEST METALLICS L.P.SUMMIT
MILL STREET MERCURY SPILL SITEDESPLAINES
MOSCHIANO PLATING COMPANYCHICAGO
MOZART STREET MERCURY SPILLCHICAGO
MR SNAPPY CLEANERSBROADVIEW
MSD #4 SLUDGE & BARREL DUMPCHICAGO
MT GREENWOODCHICAGO
N. LEROY AVE. MERCURY SITECHICAGO
NALCO CHEMICAL COMPANYBEDFORD PARK
NARCHEM INDUSTRIAL FIRE ERCHICAGO
NATIONAL CHEMICALCHICAGO
NATIONAL LACQUER & PAINT CO.CHICAGO
NICOR MERCURY SITESMT. PROSPECT
NORTH SUBURBAN CLEANERSMORTON GROVE
NORTHWESTERN PLATING WORKSCHICAGO
NUFARM AMERICAS INCCHICAGO HEIGHTS
O'HARE AIR RESERVE FACILITIESCHICAGO
OLYMPIC PETROLEUM CORPORATIONCICERO
ORTEK INCMCCOOK
OZINGA BROSCHICAGO
PAXTON LANDFILL CORPORATIONCHICAGO
PEOPLES ENERGY MERCURY SPILLSCHICAGO
PEOPLES GAS CRAWFORD STATION FORMER MGPCHICAGO
PEOPLES GAS LIGHT & COKE - 22ND STCHICAGO
PEOPLES GAS LIGHT & COKE - DIVISION STCHICAGO
PEOPLES GAS LIGHT & COKE COCHICAGO
PEOPLES GAS LIGHT & COKE NORTH STACHICAGO
PEOPLES GAS LIGHT & COKE WILLOW ST STATIONCHICAGO
PEOPLES GAS PITNEY COURT FORMER MGPCHICAGO
PEOPLES GAS SOUTH STATION FORMER MGPCHICAGO
PEOPLES GAS THROOP STREET FORMER MGPCHICAGO
PILSEN AREA SOILSCHICAGO
PLOT M, PALOS FOREST PRESERVEPALOS HILLS
POLK STREET DRUMSCHICAGO
POLYCHEM SERVICES INC., LLCCHICAGO HEIGHTS
POSEN CHEMICAL FIREPOSEN
PRIDE INDUSTRIESCHICAGO
PULLMAN SEWAGE FARMCHICAGO
QUALITY PLATINGCHICAGO
R&R SALESSOUTH CHICAGO HEIGHTS
REFINERY PRODUCTSSCHILLER PARK
RELIABLE PLATING CORPORATION FIRECHICAGO
REXNORD SEAL DIVISIONWHEELING
RIVER FOREST CLEANERSRIVER FOREST
ROBERT CLEMENTE COMM ACAD HSCHICAGO
ROLL SERVICE INC.GLENWOOD
ROSS MERCURY SPILLCHICAGO
RUPARI FOOD SERVICES, INC.SOUTH HOLLAND
SANGAMON STREET RIGHT OF WAYCHICAGO
SAUK TRAIL ABANDONED DRUM SITESTEGER
SAXON METALS COMPANYLANSING
SCHROUD PROPERTYCHICAGO
SH BELL COCHICAGO
SHERWIN WILLIAMS COMPANY, THECHICAGO
SOUTH GREEN PLATING SHOPCHICAGO
SOUTH GREENWOOD AVENUE SITECHICAGO
SOUTH KOLMAR ABANDONED TRAILER ERCHICAGO
SOUTH MORGAN STREET ABANDONED TRAILERCHICAGO
SOUTH MOZART MERCURY SPILLCHICAGO
SPECIFIED PLATING COCHICAGO
STANDARD SCRAP METAL COMPANYCHICAGO
STAUFFER CHEMICAL CO. (CHICAGO HEIGHTS PLANT)CHICAGO HEIGHTS
STEGER INDUSTRIAL PAINTCHICAGO HEIGHTS
STERLING MORTON HIGH SCHOOLCICERO
STICKNEY SCRAPYARD FIRECICERO
SUBURBAN FINISHING COARLINGTON HEIGHTS
SUN MACHINE PARTSCHICAGO
SUPERIOR METALS RECLAIMING COMPANYLANSING
TARACORP INDUSTRIESMC COOK
THE LINDSAY LIGHT COMPANYCHICAGO
TSA O'HARE TERMINAL CHICAGOCHICAGO
UNITED AIR CLEANERSCHICAGO
US ARMY RESERVE CENTER-HOMEWOODHOMEWOOD
US DRUMCHICAGO
US DRUM IICHICAGO
US GOVERNMENT DEACHICAGO
US NAVY GLENVIEW NAVAL AIR STATIONGLENVIEW
US SCRAPCHICAGO
USEPA CENTRAL REGIONAL LABCHICAGO
USVA SUPPLY DEPOTHINES
VALSPAR CORPCHICAGO
VAN WATERS & ROGERS INCORPORATEDSCHAUMBURG
VESSEL SLIPS ADJACENT TO UNITED STATES STEELCHICAGO
VESSEL SLIPS ADJACENT TO WISCONSIN STEEL WORKSCHICAGO
WATCO TRANSLOADING LLCCHICAGO
WELTMEYER AUTOHARVEY
WEST HOLLYWOOD MERCURY SPILLCHICAGO
WEST PULLMAN PCB SPILL SITECHICAGO
WEST ROSEDALE AVENUE MERCURY SITECHICAGO
WESTGATE STREET MERCURYOAK PARK
WHITE SEPTIC COMPANYBARTLETT
WILBUR WRIGHT COLLEGECHICAGO
WILLIAMS PIPE LINE COMPANYFRANKLIN PARK
WISCONSIN STEEL WORKSCHICAGO
WOODLAWN APARTMENTSCHICAGO