Mille Lacs County, Minnesota — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Mille Lacs County, MN?
In Mille Lacs County, Minnesota, public U.S. EPA records track 394 regulated facilities (#37 of 115 in Minnesota), including 1 (0.3%) High-Risk sites and $9,324 in federal penalties. Countywide due diligence also covers 106 Safe Drinking Water (SDWIS) facilities, 26 Clean Water NPDES permits, 1 FEMA Federal Disaster Declarations (1 flood/storm), USDA Soil Foundation Shrink-Swell (LOW signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Mille Lacs County, MN 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Mille Lacs County, MN Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in Mille Lacs County
Top EPA Regulated Facilities in Mille Lacs County, MN
100% of High-Risk & penalized facilities have facility names, street names, and dockets redacted (3 Low-Risk compliant records shown as Free Previews).
| Facility Name / Hazard Type | Sector Location (Street Redacted) | Risk Tier & Score | Compliance Status | Enforcement / Unlock |
|---|---|---|---|---|
| 🔒 Locked High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • ISLE, MN (ZIP 56342 Sector) | HIGH (64/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • ONAMIA, MN (ZIP 56359 Sector) | MODERATE (37/100) | Violation Identified (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • ONAMIA, MN (ZIP 56359 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • ISLE, MN (ZIP 56342 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • WAHKON, MN (ZIP 56386 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • ISLE, MN (ZIP 56342 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • ISLE, MN (ZIP 56342 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • ONAMIA, MN (ZIP 56359 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| PRINCETON PUBLIC UTILITIES COMMISSION FREE PREVIEW (LOW RISK) | 907 1ST ST, PRINCETON, MN 55371 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| KNIFE RIVER CORP N CENTRAL MILACA FREE PREVIEW (LOW RISK) | 18753 HIGHWAY 169 N, MILACA, MN 56353 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| FEDERATED CO-OP FREE PREVIEW (LOW RISK) | 502 S 2ND ST, PRINCETON, MN 55371 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| PRINCETON YOUTH HOCKEY ASSOCI FREE PREVIEW (LOW RISK) | 511 14TH AVE S, PRINCETON, MN 55371 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Mille Lacs County, Minnesota Environmental Due Diligence
How many EPA-regulated environmental sites are in Mille Lacs County, Minnesota?
Public U.S. EPA records track 394 regulated facilities in Mille Lacs County, Minnesota (ranking #37 of 115 jurisdictions in MN). Of those, 1 (0.3%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 2 (0.5%) have active non-compliance quarters.
Which ZIP codes and cities in Mille Lacs County have the highest regulated facility density?
Within Mille Lacs County, the highest concentrations of EPA-tracked facilities are located in ZIP 55371 (Princeton, 149 sites), ZIP 56353 (Milaca, 88 sites), ZIP 56359 (Onamia, 64 sites), spanning municipal corridors including Princeton (147 sites), Milaca (86 sites), Onamia (63 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Mille Lacs County?
Across Mille Lacs County, 263 facilities (66.8% of regulated sites) are registered Resource Conservation and Recovery Act (RCRA) hazardous waste generators or handlers, and 0 industrial sites report toxic chemical releases to the EPA Toxics Release Inventory (TRI).
What is the EPA Radon Zone classification for Mille Lacs County, MN?
Geologic indoor air screening places Mille Lacs County in EPA Zone 1 — High Potential (> 4.0 pCi/L). Counties in EPA Radon Zone 1 have a predicted average indoor radon screening level greater than 4.0 pCi/L (the EPA action threshold). Short-term or continuous indoor radon testing is strongly recommended prior to closing.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in Mille Lacs County, MN?
Federal records track 106 Safe Drinking Water (SDWIS) facilities, 26 Clean Water Act NPDES permits, and 7 impaired water dischargers in Mille Lacs County, alongside 1 historical FEMA federal disaster declarations (1 flood/storm events).
Does Mille Lacs County, MN have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Mille Lacs County indicates a LOW shrink-swell risk signal and steel pipe corrosivity rated High. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.