Jefferson County, IA
The federal environmental record for Jefferson County (population 15,440): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
1
Superfund NPL sites
2
federal cleanup sites
1
PFAS-detecting water systems
2
TRI facilities
2
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Fairfield Coal Gasification Plant | Fairfield | on the NPL | 08/30/1990 |
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 |
|---|---|---|
| WAPELLO RURAL WATER ASSOC. IA9000742 | PFBA: 5 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
2 facilities in Jefferson filed TRI reports for 2024, totalling 292 lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| DEXTER LAUNDRY INC | FAIRFIELD | Chromium, Nickel | 203 lb |
| HYCAST LLC | FAIRFIELD | Nickel, Manganese | 89 lb |
Underground fuel tanks
EPA's UST Finder records 57 tank facilities in Jefferson: 38 tanks in service and 125 closed. 27 fuel releases are on record, of which 2 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.
- FAIRFIELD COAL GASIFICATION PLANTFAIRFIELD
- WEST BURLINGTON VOCFAIRFIELD