Marion County, IN
The federal environmental record for Marion County (population 968,460): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
4
Superfund NPL sites
56
federal cleanup sites
2
PFAS-detecting water systems
64
TRI facilities
205
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Carter Lee Lumber Co. | Indianapolis | deleted | 03/31/1989 |
| Keystone Corridor Ground Water Contamination | Indianapolis | on the NPL | 12/12/2013 |
| Reilly Tar & Chemical Corp. (Indianapolis Plant) | Indianapolis | on the NPL | 09/21/1984 |
| Southside Sanitary Landfill | Indianapolis | deleted | 03/31/1989 |
Drinking water: PFAS testing
Public water systems serving Marion 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 |
|---|---|---|
| CITIZENS WATER - INDIANAPOLIS IN5249004 | PFPeA: 7.6 ng/L PFBA: 5.7 ng/L PFHxA: 5.1 ng/L | detected |
| SPEEDWAY WATER WORKS IN5249008 | PFBA: 18 ng/L PFPeA: 5.4 ng/L PFHxA: 4 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
64 facilities in Marion filed TRI reports for 2024, totalling 8.9M lb released. The 25 largest by volume:
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| HERITAGE ENVIRONMENTAL SERVICES LLC | INDIANAPOLIS | Nickel, Zinc compounds | 5.5M lb |
| ECOBAT RESOURCES INDIANA LLC | INDIANAPOLIS | Lead And Lead Compounds, Antimony And Antimony Compounds | 3.0M lb |
| HERITAGE-CRYSTAL CLEAN LLC - RE-REFINERY | INDIANAPOLIS | Molybdenum trioxide, Nickel And Nickel Compounds | 98k lb |
| LORD CORP | INDIANAPOLIS | Zinc compounds, Diisocyanates | 88k lb |
| BRENNTAG MID-SOUTH INC | INDIANAPOLIS | Toluene, Xylene (mixed isomers) | 68k lb |
| SUPERIOR INDUSTRIAL SOLUTIONS INC. | INDIANAPOLIS | Toluene, Certain glycol ethers | 25k lb |
| LILLY TECHNOLOGY CENTER | INDIANAPOLIS | Acetonitrile, Methyl tert-butyl ether | 17k lb |
| INGREDION INC INDIANAPOLIS PLANT | INDIANAPOLIS | Propylene oxide, Acetaldehyde | 17k lb |
| MICRONUTRIENTS USA LLC | INDIANAPOLIS | Manganese compounds, Copper And Copper Compounds | 16k lb |
| CONAGRA FOODS INC | INDIANAPOLIS | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 11k lb |
| COLORS INC | INDIANAPOLIS | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Nitric acid | 8k lb |
| AEARO TECHNOLOGIES LLC | INDIANAPOLIS | N-Methyl-2-pyrrolidone, Antimony And Antimony Compounds | 7k lb |
| PRYSMIAN CABLES & SYSTEMS USA LLC | INDIANAPOLIS | Antimony compounds, Zinc compounds | 5k lb |
| MPLX TERMINALS LLC - INDIANAPOLIS IN TERMINAL | INDIANAPOLIS | n-Hexane, Toluene | 5k lb |
| LINDE ADVANCED MATERIAL TECHNOLOGIES INC | INDIANAPOLIS | Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region), Cobalt And Cobalt Compounds | 5k lb |
| PIEZOTECH LLC | INDIANAPOLIS | Lead And Lead Compounds | 5k lb |
| ROYAL SPA CORP | INDIANAPOLIS | Styrene | 4k lb |
| MPLX TERMINALS LLC - SPEEDWAY IN TERMINAL | INDIANAPOLIS | n-Hexane, Toluene | 4k lb |
| DORMAKABA USA INC. | INDIANAPOLIS | Chromium, Copper | 3k lb |
| LINDE GAS & EQUIPMENT | INDIANAPOLIS | Propylene | 3k lb |
| ALLISON TRANSMISSION INC | INDIANAPOLIS | Ammonia, Methanol | 3k lb |
| PRC-DESOTO INTERNATIONAL INC. | INDIANAPOLIS | Cyclohexane, Xylene (mixed isomers) | 2k lb |
| CROSSROAD FARMS DAIRY | INDIANAPOLIS | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 2k lb |
| ELLIOTT CO OF INDIANAPOLI S INC. | INDIANAPOLIS | Diisocyanates, Dichloromethane | 2k lb |
| BRULIN HOLDING CO INC. | INDIANAPOLIS | Certain glycol ethers, Nonylphenol Ethoxylates | 2k lb |
Underground fuel tanks
EPA's UST Finder records 2,089 tank facilities in Marion: 1,554 tanks in service and 5,866 closed. 1,507 fuel releases are on record, of which 205 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Marion 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 Marion, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- 1424 N. OLNEY STREETINDIANAPOLIS
- 19TH STREET GROUND WATER PLUMEINDIANAPOLIS
- 60 MINUTE CLEANERSINDIANAPOLIS
- ADVANCE PLATING WORKSINDIANAPOLIS
- ALL PRO SHEARING INCINDIANAPOLIS
- AMERICAN LEAD CORPORATIONINDIANAPOLIS
- ANTIQUE CHROME SHOPINDIANAPOLIS
- AURORIUM INDIANAPOLIS LLCINDIANAPOLIS
- AVANTI CORPORATIONINDIANAPOLIS
- BEAUMONT WAY MERCURY SPILLINDIANAPOLIS
- BELMONT AVENUE WAREHOUSE FIREINDIANAPOLIS
- BETHEL AVENUE PAINT SITEINDIANAPOLIS
- CARGO MOTION INCIDENTINDIANAPOLIS
- CAROLINE AVENUE DRUMSINDIANAPOLIS
- CARRIER-BRYANTINDIANAPOLIS
- CARTER LEE LUMBER CO.INDIANAPOLIS
- CROWN LAUNDRYINDIANAPOLIS
- CUSTOM FINISHING INCINDIANAPOLIS
- DEARBORN STREET VI ASSESSMENTINDIANAPOLIS
- DOUGLAS LITTLE LEAGUEINDIANAPOLIS
- ERTEL MANUFACTURING SITEINDIANAPOLIS
- ESI ENVIRONMENTAL INCINDIANAPOLIS
- FALCONS NEST PONDINDIANAPOLIS
- FLOATING LEAF DRIVE MERCURY SPILLINDIANAPOLIS
- GENERAL CHEMICAL, LLC - INDIANAPOLISINDIANAPOLIS
- HANNA'S WRECKERINDIANAPOLIS
- HOLCOMB & HOKE MANUFACTURING COMPANY INCORPORATEDINDIANAPOLIS
- HOOSIER WOOD PRESERVERSINDIANAPOLIS
- INDIANA BATTERY CO SITEINDIANAPOLIS
- INDIANAPOLIS WEIDING SUPPLYINDIANAPOLIS
- INTERWOVEN BY JESUS INCORPORATED PARKING LOTINDIANAPOLIS
- JIREH SPORTS CENTERINDIANAPOLIS
- KEYSTONE CORRIDOR GROUND WATER CONTAMINATIONINDIANAPOLIS
- LAFAYETTE ROAD DRUMS ERINDIANAPOLIS
- MICHIGAN STREET WAREHOUSE ERINDIANAPOLIS
- MIDWEST CONCRETE PUMPINGINDIANAPOLIS
- MUNULTY POLISHING & PLATINGINDIANAPOLIS
- NAVISTARINDIANAPOLIS
- NEWTON AVE VIINDIANAPOLIS
- OMNISOURCEINDIANAPOLIS
- REFINED METALS CORPINDIANAPOLIS
- REHAB RESOURCEINDIANAPOLIS
- RITTER AVENUE MERCURY SPILLINDIANAPOLIS
- RIVERSIDE GROUND WATER CONTAMINATIONINDIANAPOLIS
- SEERLEY ROAD FIRE ERINDIANAPOLIS
- SOUTH SIDE LANDFILL INCINDIANAPOLIS
- TONY RAY LAUNDRY INCINDIANAPOLIS
- TUCHMAN CLEANERSINDIANAPOLIS
- U.S. NAVY NAVAL AIR WARFARE CENTER AIRCRAFT DIV.INDIANAPOLIS
- U.S. POSTAL SERVICE BACON STATIONINDIANAPOLIS
- US ARMY SOLDIER SUPPORT CTRFORT BENJAMIN HARRISON
- VANDALIA-CSX RAIL ROADINDIANAPOLIS
- WEST MINNESOTA STREET GROUNDWATER CONTAMINATIONINDIANAPOLIS
- WEST VERMONT DRINKING WATER CONTAMINATIONINDIANAPOLIS
- WILLIAMSON POLISHING & PLATING CO., INC.INDIANAPOLIS
- WMH PHYSICIANS' HOSPITAL, LLC D/B/A WINONA MEMORIAL HOSPITAINDIANAPOLIS