Chisago County, MN
The federal environmental record for Chisago County (population 58,535): 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
7
open tank releases
Drinking water: PFAS testing
Public water systems serving Chisago 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 |
|---|---|---|
| Chisago City MN1130003 | PFBA: 7.9 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
5 facilities in Chisago filed TRI reports for 2024, totalling 22k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| ANDERSEN EXTRUSION NORTH BRANCH | NORTH BRANCH | Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region), Diisononyl Phthalates (DINP) | 16k lb |
| ZINPRO CORP | NORTH BRANCH | Zinc compounds | 6k lb |
| SCHWING BIOSET INC. | NORTH BRANCH | Aluminum oxide (fibrous forms) | 756 lb |
| FORTERRA PIPE & PRECAST - STACY | STACY | Lead | 0 lb |
| ROSENBAUER MOTORS LLC | WYOMING | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 97 tank facilities in Chisago: 88 tanks in service and 260 closed. 92 fuel releases are on record, of which 7 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Chisago as Zone 2, moderate predicted indoor radon (2 to 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