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Olmsted County, Minnesota — Property Hazard, Flood Zone, Soil, Water & EPA Guide

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What Are the Flood, Soil Foundation & EPA Risks in Olmsted County, MN?

In Olmsted County, Minnesota, public U.S. EPA records track 1,191 regulated facilities (#9 of 115 in Minnesota), including 6 (0.5%) High-Risk sites and $5,348,529 in federal penalties. Countywide due diligence also covers 113 Safe Drinking Water (SDWIS) facilities, 41 Clean Water NPDES permits, 7 FEMA Federal Disaster Declarations (5 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).

Total EPA Sites (#9/115)
1,191
High-Risk (0.5% vs 0.5% State)
6
Active Violators (0.5%)
6
Drinking & Clean Water
154
Federal Penalties
$5,348,529

Olmsted 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
🌊 Flood Zone & FEMA Disaster History
7 County FEMA Declarations (5 Flood/Storm)
🔒 Exact Parcel Flood Zone (AE / VE / X) & SFHA Insurance Requirement Locked
Check Property Flood Zone →
🪨 USDA Soil, Foundation & Water Table
Shrink-Swell Risk Signal: MODERATE • Pipe Corrosion: Low
🔒 Exact USDA Soil Series, Linear Extensibility (LEP %) & Water Table Depth (ft) Locked
Unlock Parcel Soil Test →
🚰 Tap Water (SDWIS) & PFAS Check
113 SDWIS Systems • 41 NPDES Permits
🔒 17 Impaired Water (303d) & 14 Violation Dockets Locked
Unlock Utility Violation Log →
☢️ EPA Radon & Karst Sinkhole
EPA Zone 1 — High Potential (> 4.0 pCi/L)
Low / Non-Karst Bedrock & Alluvial Formation
🔒 0.25-Mi Vapor Intrusion Buffer Locked

📊 Olmsted County, MN Statistical Risk Graphs & Multi-Hazard Telemetry

SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)
1. County Regulatory & Water Program Mix
RCRA Hazardous Waste Generators 1,016 (85.3%)
Clean Water (NPDES) & Drinking Water (SDWIS) 154 (12.9%)
Active EPA Non-Compliance Dockets 6 (0.5%)
High-Risk Enforcement Facilities 6 (0.5%)
2. FEMA NRI & USGS Hazard Index (1–10) Relatively Moderate (82.3/100)
🌊 Flood Exposure 5/10 • Moderate Hazard
🔥 Wildfire Hazard 1/10 • Very Low Hazard
☀️ Extreme Heat 3/10 • Low Hazard
🌪️ Severe Wind / Storm 5/10 • Moderate Hazard
🫨 USGS Earthquake 2/10 • Low Seismic Hazard
3. County vs. State & National Benchmark
Olmsted County High-Risk % 0.5%
Minnesota (MN) Statewide Avg 0.5%
U.S. National EPA Baseline 3.6%
Unlock Street-Level Dossier: Full report reveals unredacted facility names, distances in feet, exact USDA soil LEP %, water table depth, and parcel flood zone.
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Top EPA Regulated Facilities in Olmsted 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).

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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 • ORONOCO, MN (ZIP 55960 Sector) HIGH (66/100) Significant Violation (8 qtrs NC) 🔒 8 Qtrs Non-Compliance • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #2 🔒 Exact Street & Parcel Redacted • ROCHESTER, MN (ZIP 55901 Sector) HIGH (65/100) Violation Identified (3 qtrs NC) 🔒 Federal Penalty on File • Unlock →
🔒 Locked Regulated EPA Enforcement Record #3 🔒 Exact Street & Parcel Redacted • ORONOCO, MN (ZIP 55960 Sector) MODERATE (48/100) Violation (12 qtrs NC) 🔒 12 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #4 🔒 Exact Street & Parcel Redacted • STEWARTVILLE, MN (ZIP 55976 Sector) MODERATE (44/100) No Violation Identified (0 qtrs NC) 🔒 $10,000+ Federal Fine • Unlock →
🔒 Locked Regulated EPA Enforcement Record #5 🔒 Exact Street & Parcel Redacted • ROCHESTER, MN (ZIP 55901 Sector) MODERATE (37/100) Violation Identified (4 qtrs NC) 🔒 4 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #6 🔒 Exact Street & Parcel Redacted • ROCHESTER, MN (ZIP 55901 Sector) MODERATE (36/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #7 🔒 Exact Street & Parcel Redacted • ROCHESTER, MN (ZIP 55901 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 $100,000+ Federal Fine • Unlock →
🔒 Locked Regulated EPA Enforcement Record #8 🔒 Exact Street & Parcel Redacted • ROCHESTER, MN (ZIP 55901 Sector) MODERATE (33/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
SL CONTRACTING INC FREE PREVIEW (LOW RISK) 2510 SCHUSTER LN NW, ROCHESTER, MN 55901 LOW (19/100) No Violation Identified (0 qtrs NC) $0
GOPHER SEPTIC SERVICE INC FREE PREVIEW (LOW RISK) 1020 30TH ST SE, ROCHESTER, MN 55904 LOW (17/100) No Violation Identified (0 qtrs NC) $0
BAKER OIL CO INC FREE PREVIEW (LOW RISK) 1836 3RD AVE S E, ROCHESTER, MN 55904 LOW (16/100) No Violation Identified (0 qtrs NC) $0
SHERWIN-WILLIAMS 3526 FREE PREVIEW (LOW RISK) 2900 E FRONTAGE RD HIGHWAY 63, ROCHESTER, MN 55904 LOW (16/100) No Violation Identified (0 qtrs NC) $0
🔒 + 1,179 Additional Regulated & Enforcement Records in Olmsted County Redacted from Public Directory Run 1-Mile Property Scan to Unlock All Records →

Frequently Asked Questions — Olmsted County, Minnesota Environmental Due Diligence

How many EPA-regulated environmental sites are in Olmsted County, Minnesota?

Public U.S. EPA records track 1,191 regulated facilities in Olmsted County, Minnesota (ranking #9 of 115 jurisdictions in MN). Of those, 6 (0.5%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 6 (0.5%) have active non-compliance quarters.

Which ZIP codes and cities in Olmsted County have the highest regulated facility density?

Within Olmsted County, the highest concentrations of EPA-tracked facilities are located in ZIP 55901 (Rochester, 354 sites), ZIP 55904 (Rochester, 291 sites), ZIP 55902 (Rochester, 160 sites), spanning municipal corridors including Rochester (920 sites), Stewartville (60 sites), Byron (50 sites).

How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Olmsted County?

Across Olmsted County, 1,016 facilities (85.3% 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 Olmsted County, MN?

Geologic indoor air screening places Olmsted 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 Olmsted County, MN?

Federal records track 113 Safe Drinking Water (SDWIS) facilities, 41 Clean Water Act NPDES permits, and 17 impaired water dischargers in Olmsted County, alongside 7 historical FEMA federal disaster declarations (5 flood/storm events).

Does Olmsted County, MN have expansive clay soil or foundation risk?

USDA regional soil engineering screening for Olmsted County indicates a MODERATE shrink-swell risk signal and steel pipe corrosivity rated Low. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.

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