Will County, IL
The federal environmental record for Will County (population 700,728): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
3
Superfund NPL sites
25
federal cleanup sites
9
PFAS-detecting water systems
53
TRI facilities
123
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Amoco Chemicals (Joliet Landfill) | Joliet | on the NPL | 02/21/1990 |
| Joliet Army Ammunition Plant (Load-Assembly-Packing Area) | Joliet | on the NPL | 03/13/1989 |
| Joliet Army Ammunition Plant (Manufacturing Area) | Joliet | on the NPL | 07/22/1987 |
Drinking water: PFAS testing
Public water systems serving Will 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 |
|---|---|---|
| CHANNAHON IL1970200 | PFBS: 17 ng/L PFPeA: 13 ng/L PFBA: 9.9 ng/L | above final limit |
| CREST HILL IL1970250 | PFBS: 52.1 ng/L PFPeA: 32.2 ng/L PFBA: 27.2 ng/L | above final limit |
| LOCKPORT IL1970500 | PFHxS: 9.2 ng/L PFPeA: 8.2 ng/L PFHxA: 4.3 ng/L | detected |
| ROMEOVILLE IL1970900 | PFPeA: 21.2 ng/L PFHxA: 11.8 ng/L PFBA: 8.9 ng/L | detected |
| WILMINGTON IL1971100 | PFBA: 5.7 ng/L PFPeA: 4.5 ng/L PFHxA: 4 ng/L | detected |
| AQUA ILLINOIS-UNIVERSITY PARK IL1975030 | PFBS: 5.3 ng/L PFHxA: 4.3 ng/L | detected |
| SHOREWOOD, IL IL1975080 | PFPeA: 3.2 ng/L | detected |
| CRYSTAL LAWNS ADDITION IMPROVEMENT ASSOC IL1975480 | PFBS: 3.7 ng/L PFPeA: 3.2 ng/L | detected |
| EISENHOWER ACADEMY IL3004572 | PFBA: 8.2 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
53 facilities in Will filed TRI reports for 2024, totalling 2.5M lb released. The 25 largest by volume:
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| EXXONMOBIL OIL CORP JOLIET REFINERY | CHANNAHON | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 1.0M lb |
| STEPAN CO MILLSDALE ROAD | ELWOOD | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Phthalic anhydride | 518k lb |
| LARAWAY RECYCLING & DISPOSAL FACILITY | JOLIET | Lead, Barium | 287k lb |
| SOUTH HOLLAND METAL FINISHING | MONEE | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Zinc compounds | 226k lb |
| CITGO PETROLEUM CORP LEMONT REFINERY | LEMONT | Hydrogen sulfide, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 181k lb |
| INEOS JOLIET LLC | CHANNAHON | Cobalt And Cobalt Compounds, Manganese And Manganese Compounds | 165k lb |
| INEOS STYROLUTION AMERICA LLC | CHANNAHON | Styrene, Ethylbenzene | 55k lb |
| ECOLAB INC. | JOLIET | Nonylphenol Ethoxylates, Certain glycol ethers | 17k lb |
| NANOPHASE TECHNOLOGIES CORP | ROMEOVILLE | Zinc compounds | 14k lb |
| TOYAL AMERICA INC | LOCKPORT | Aluminum (fume or dust), 1,2,4-Trimethylbenzene | 13k lb |
| NANOPHASE TECHNOLOGIES CORP | BOLINGBROOK | Zinc compounds | 12k lb |
| CRANE COMPOSITES INC. | CHANNAHON | Styrene, Methyl methacrylate | 11k lb |
| PRES-ON TAPE & GASKET | BOLINGBROOK | Toluene, n-Hexane | 6k lb |
| AZZ GALVANIZING SERVICES-JOLIET | JOLIET | Zinc compounds, Lead | 6k lb |
| AMERICAS STYRENICS LLC - JOLIET SITE | CHANNAHON | Zinc compounds, Styrene | 3k lb |
| SEATING CONCEPTS | ROCKDALE | Styrene | 3k lb |
| INTERSTATE CHEMICAL CO INC | CHANNAHON | n-Hexane, Formic acid | 3k lb |
| APOLLO COLORS INC. | ROCKDALE | Certain glycol ethers, Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 2k lb |
| WEST LIBERTY FOODS BOLINGBROOK IL | BOLINGBROOK | Ammonia | 2k lb |
| HENDRICKSON BUMPER | LOCKPORT | Chromium, Nickel | 917 lb |
| DIAGRAPH MARKING & CODING | FRANKFORT | n-Hexane | 859 lb |
| VERDANT SPECIALTY SOLUTIONS US LLC | UNIVERSITY PARK | Methanol, Chloroacetic acid | 804 lb |
| BLACHFORD CORP | FRANKFORT | Zinc compounds | 803 lb |
| BATTERY BUILDERS LLC | NAPERVILLE | Lead And Lead Compounds, Antimony | 789 lb |
| CLEVELAND STEEL CONTAINER-PE OTONE FACILITY | PEOTONE | Xylene (mixed isomers), Certain glycol ethers | 600 lb |
Underground fuel tanks
EPA's UST Finder records 787 tank facilities in Will: 864 tanks in service and 1,757 closed. 609 fuel releases are on record, of which 123 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Will 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 - $39All federal cleanup sites on file
The wider Superfund enterprise inventory (SEMS) for Will, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- AMERICAN CYANAMIDE COMPANYJOLIET
- AMOCO CHEMICALS (JOLIET LANDFILL)JOLIET
- BEECHER DITCH DRUMSBEECHER
- BNSF STYRENE RELEASEJOLIET
- CARLSTROM LANDFILLROCKDALE
- CASTLE CONSTRUCTIONWILMINGTON
- CELOTEX CORPORATED DUMPWILMINGTON
- CLIFFS CONTAINER DORION DRUM COROMEOVILLE
- CREST HILL TRAILERJOLIET
- CUSTOM BLENDED OILSPEOTONE
- INSTA-FOAM PRODUCT, INCORPORATIONCREST HILL
- JOLIET ARMY AMMUNITION PLANT (MANUFACTURING AREA)JOLIET
- JOLIET CHEMICAL FIREJOLIET
- JOLIET GENERATING STATION (#9 & #29)JOLIET
- LOCKPORT TOWNSHIP CYLINDERSLOCKPORT
- MATHESON GAS PRODUCTS INCJOLIET
- MOBIL OIL CORPORATIONJOLIET
- NEW LENOX PUBLIC WELL #4NEW LENOX
- ROMEOVILLE MERCURY SPILLROMEOVILLE
- SHOREWOOD PESTICIDES FIRESHOREWOOD
- TAKASAGO INTERNATIONAL CORP (USA)UNIVERSITY PARK
- US STEEL COKING FACILITYLOCKPORT
- US STEEL CORP JOLIET WORKSJOLIET
- USARC - JOLIET TRAINING CENTERELWOOD
- WASTELAND LANDFILLLOCKPORT