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States / Ohio

Seneca County, OH

The federal environmental record for Seneca County (population 54,527): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.

0

Superfund NPL sites

4

federal cleanup sites

0

PFAS-detecting water systems

5

TRI facilities

22

open tank releases

Drinking water: PFAS testing

No public water system serving Seneca 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)

5 facilities in Seneca filed TRI reports for 2024, totalling 32k lb released.

FacilityCityTop chemicalsTotal released
POET BIOREFINING-FOSTORIAFOSTORIAAcetaldehyde, Ammonia24k lb
NATIONAL ELECTRICAL CARBON PRODUCTS DBA MORGAN ADV MATERIALSFOSTORIATrichloroethylene, Polycyclic aromatic compounds8k lb
WEBSTER INDUSTRIESTIFFINChromium, Manganese16 lb
TIFFIN METAL PRODUCTSTIFFIN-0 lb
ROPPE CORPFOSTORIA-0 lb

Underground fuel tanks

EPA's UST Finder records 152 tank facilities in Seneca: 128 tanks in service and 282 closed. 198 fuel releases are on record, of which 22 remain open. Open releases are cleanups that have not reached "no further action".

Radon

EPA maps Seneca 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 - $39

All federal cleanup sites on file

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

  • BENDIX AUTOLITE CORPFOSTORIA
  • FOSTORIA INDUSTRIES SITEFOSTORIA
  • NATIONAL ELECTRICAL CARBON CORPORATIONFOSTORIA
  • TIFFIN GLASSTIFFIN