Marion County, OH
The federal environmental record for Marion County (population 64,851): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
1
Superfund NPL sites
4
federal cleanup sites
0
PFAS-detecting water systems
9
TRI facilities
14
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Little Scioto River | Marion Township | on the NPL | 09/23/2009 |
Drinking water: PFAS testing
No public water system serving Marion reported a PFAS detection in the UCMR5 national testing round. Systems serving under 3,300 people were only sampled in part, so absence from this table is not proof of absence in the water.
Facilities reporting toxic releases (2024)
9 facilities in Marion filed TRI reports for 2024, totalling 1.6M lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| OHIO GALVANIZING CORP | MARION | Zinc compounds, Lead | 1.2M lb |
| NUCOR STEEL MARION INC | MARION | Manganese compounds, Zinc compounds | 204k lb |
| WHIRLPOOL CORP MARION OPERATIONS | MARION | Certain glycol ethers, Sodium nitrite | 192k lb |
| POET BIOREFINING-MARION LLC | MARION | Acetaldehyde, n-Hexane | 33k lb |
| SIKA CORP-MARION OPERATIONS | MARION | Xylene (mixed isomers), Diisocyanates | 5k lb |
| NACHURS ALPINE SOLUTIONS | MARION | Ammonia | 3k lb |
| GLEN-GERY CORP | IBERIA | Hydrogen fluoride | 1k lb |
| HILDRETH MANUFACTURING LLC | MARION | Copper | 28 lb |
| ARCELORMITTAL TUBULAR PRODUCTS USA LLC | MARION | Lead And Lead Compounds | 0 lb |
Underground fuel tanks
EPA's UST Finder records 141 tank facilities in Marion: 90 tanks in service and 304 closed. 209 fuel releases are on record, of which 14 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.
- BAKER WOODS CREOSOTINGMARION
- JOSEPH STREET ASBESTOSMARION
- LITTLE SCIOTO RIVERMARION COUNTY
- US EPA MARION OHIO MERCURY SPILLMARION