Jefferson County, KY
The federal environmental record for Jefferson County (population 773,399): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
2
Superfund NPL sites
33
federal cleanup sites
1
PFAS-detecting water systems
64
TRI facilities
0
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Distler Farm | Jefferson County | on the NPL | 09/08/1983 |
| Lee's Lane Landfill | Louisville | deleted | 09/08/1983 |
Drinking water: PFAS testing
Public water systems serving Jefferson 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 |
|---|---|---|
| LOUISVILLE WATER COMPANY KY0560258 | PFOA: 7.5 ng/L PFPeA: 4.1 ng/L PFHxA: 3.6 ng/L | above final limit |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
64 facilities in Jefferson filed TRI reports for 2024, totalling 4.1M lb released. The 25 largest by volume:
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| LOUISVILLE GAS & ELECTRIC CO. - MILL CREEK STATION | LOUISVILLE | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Zinc compounds | 1.2M lb |
| FORD MOTOR CO KENTUCKY TRUCK PLANT | LOUISVILLE | n-Butyl alcohol, Certain glycol ethers | 452k lb |
| CLARIANT CORP 12TH STREET FACILITY | LOUISVILLE | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Copper compounds | 435k lb |
| ALLNEX USA INC. | LOUISVILLE | Xylene (mixed isomers), Toluene | 333k lb |
| AMERICAN SYNTHETIC RUBBER CO | LOUISVILLE | Toluene, Cyclohexane | 295k lb |
| CHEMOURS LOUISVILLE PLANT | LOUISVILLE | Chlorodifluoromethane (HCFC-22), Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 291k lb |
| BAKELITE SYNTHETICS | LOUISVILLE | Phenol, Zinc compounds | 278k lb |
| CLARIANT CORP CRITTENDEN DRIVE FACILITY | LOUISVILLE | Ammonia, Nickel compounds | 262k lb |
| REPUBLIC CONDUIT MANUFACTURING | LOUISVILLE | Zinc compounds, Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 148k lb |
| FORD LOUISVILLE ASSEMBLY | LOUISVILLE | 1,2,4-Trimethylbenzene, Certain glycol ethers | 90k lb |
| LOUISVILLE PACKAGING | LOUISVILLE | 2,2-Dichloro-1,1,1-trifluoroethane (HCFC-123), 2-Chloro-1,1,1,2-tetrafluoroethane (HCFC-124) | 90k lb |
| ZEON CHEMICALS LP | LOUISVILLE | Ethyl acrylate, Zinc compounds | 39k lb |
| ROHM & HAAS - LOUISVILLE PLANT | LOUISVILLE | tert-Butyl alcohol, Methyl methacrylate | 33k lb |
| LUBRIZOL ADVANCED MATERIALS INC | LOUISVILLE | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 30k lb |
| FAURECIA INTERIOR SYSTEMS | LOUISVILLE | Diisocyanates | 26k lb |
| SUPERIOR INDUSTRIAL SOLUTIONS INC. | LOUISVILLE | Toluene, Methanol | 13k lb |
| SWIFT & CO | LOUISVILLE | Ammonia | 12k lb |
| ALTUGLAS LOUISVILLE PLANT | LOUISVILLE | Methyl methacrylate, Ethyl acrylate | 11k lb |
| DUPONT LOUISVILLE PLANT | LOUISVILLE | Vinyl fluoride, Hydrogen fluoride | 10k lb |
| KOSMOS CEMENT CO LLC | LOUISVILLE | Ammonia, Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) | 9k lb |
| ECKART AMERICA CORP | LOUISVILLE | Aluminum (fume or dust), 1,2,4-Trimethylbenzene | 8k lb |
| FERVALUE USA INC. - LOUISVILLE BAKERY | LOUISVILLE | Ammonia | 7k lb |
| MPLX TERMINALS LLC - LOUISVILLE ALGON KY TERMINAL | LOUISVILLE | Toluene, n-Hexane | 5k lb |
| BASF CORP | LOUISVILLE | Vanadium compounds, Zinc compounds | 5k lb |
| MPLX TERMINALS LLC - LOUISVILLE KRAMERS KY TERMINAL | LOUISVILLE | n-Hexane, Toluene | 4k lb |
Underground fuel tanks
EPA's UST Finder records 2,046 tank facilities in Jefferson: 1,003 tanks in service and 5,588 closed. 1,638 fuel releases are on record, of which 0 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Jefferson as Zone 1, the highest predicted indoor radon levels (over 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 Jefferson, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- AKZO NOBEL RESINSLOUISVILLE
- AMERICAN COLD STORAGELOUISVILLE
- APPLEGATE LANE CONTAINERSLOUISVILLE
- APPLEGATE LANE MERCURYLOUISVILLE
- APPLETON LANE DRUMSLOUISVILLE
- AQUA-PRO SITELOUISVILLE
- BLACK LEAF CHEMICALSLOUISVILLE
- CARBIDE INDUSTRIES LLCLOUISVILLE
- CHEMOURS COLOUISVILLE
- DERBY INDUSTRIES FIRELOUISVILLE
- DISTLER FARMWEST POINT
- ENGLEHARD AMMONIA RELEASE/ HARSHAW-FILTROL PARTNERSHIPLOUISVILLE
- FORMER VMCC INCLOUISVILLE
- HARTLAGE MACHINE CO.LOUISVILLE
- INDUSTRIAL PLASTICS OF LOUISVILLELOUISVILLE
- ISOGRIP 5040 D SPILLLOUISVILLE
- K&I RAILROAD BRIDGE FIRELOUISVILLE
- LANDRUM CHEMICALLOUISVILLE
- LEE'S LANE LANDFILLLOUISVILLE
- LIBERTY TIRE RECYCLING FIRELOUISVILLE
- LOUISVILLE VETERANS AFFAIRS MEDICAL CENTERLOUISVILLE
- LOUISVILLE, KYLOUISVILLE
- MOBILE TANK CAR SERVICES INCLOUISVILLE
- NATIONAL TURNPIKE DRUMLOUISVILLE
- O'BRYAN, GEORGE SITELOUISVILLE
- P&L RAILROAD KATHERINE STATION ROAD SITELOUISVILLE
- PETER PAN DRY CLEANERSLOUISVILLE
- ROHM AND HAAS - LOUISVILLE PLANTLOUISVILLE
- SACRED HEART ACAD MERCURYLOUISVILLE
- STAUFFER CHEMICAL COLOUISVILLE
- U.S. NAVY NAVAL SURFACE WARFARE CENTER CRANE DIV.LOUISVILLE
- US DOD FLOATING PLANT - REPAIR FACILITYLOUISVILLE
- ZEON CHEMICALS LPLOUISVILLE