Union County, IA
The federal environmental record for Union County (population 11,906): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
0
Superfund NPL sites
0
federal cleanup sites
1
PFAS-detecting water systems
5
TRI facilities
3
open tank releases
Drinking water: PFAS testing
Public water systems serving Union 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 |
|---|---|---|
| CRESTON WATER SUPPLY IA8816089 | PFBA: 5.1 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
5 facilities in Union filed TRI reports for 2024, totalling 95k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| WHITE RIVER NUTRITION LLC | CRESTON | n-Hexane | 77k lb |
| WELLMAN DYNAMICS | CRESTON | 1,2,4-Trimethylbenzene, Diisocyanates | 15k lb |
| NEW COOPERATIVE INC. - AFTON | AFTON | Methanol, Formaldehyde | 3k lb |
| NEW COOPERATIVE INC. - CRESTON MILL | CRESTON | Methanol, Formaldehyde | 1k lb |
| CENTRAL IOWA READY MIX | CRESTON | Lead | 226 lb |
Underground fuel tanks
EPA's UST Finder records 68 tank facilities in Union: 31 tanks in service and 128 closed. 39 fuel releases are on record, of which 3 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Union 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