Polk County, MN
The federal environmental record for Polk County (population 30,412): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
0
Superfund NPL sites
2
federal cleanup sites
1
PFAS-detecting water systems
5
TRI facilities
1
open tank releases
Drinking water: PFAS testing
Public water systems serving Polk 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 |
|---|---|---|
| East Grand Forks MN1600004 | PFBA: 13 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
5 facilities in Polk filed TRI reports for 2024, totalling 642k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| AMERICAN CRYSTAL SUGAR CO | CROOKSTON | Methanol, Ammonia | 419k lb |
| AMERICAN CRYSTAL SUGAR CO | EAST GRAND FORKS | Ammonia, Hydrogen fluoride | 197k lb |
| CONSOLIDATED EQUIPMENT GROUP | FOSSTON | Manganese | 17k lb |
| NEW FLYER OF AMERICA INC | CROOKSTON | Ethylene glycol | 9k lb |
| DEE MANUFACTURING LLC. - FOSKETT ST | CROOKSTON | Lead | 0 lb |
Underground fuel tanks
EPA's UST Finder records 141 tank facilities in Polk: 96 tanks in service and 361 closed. 118 fuel releases are on record, of which 1 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Polk 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 Polk, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- CROOKSTON IRON AND METALCROOKSTON
- SYLVESTER BYZEWSKI RESIDENCEEAST GRAND FORKS