O'Brien County, Iowa — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
In O'Brien County, Iowa, public U.S. EPA records track 37 regulated facilities (#101 of 117 in Iowa), including 1 (2.7%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 7 Safe Drinking Water (SDWIS) facilities, 10 Clean Water NPDES permits, 1 FEMA Federal Disaster Declarations (1 flood/storm), USDA Soil Foundation Shrink-Swell (HIGH signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
O'Brien County, IA 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 O'Brien County, IA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)Municipalities in O'Brien County
ZIP Codes in O'Brien County
Top EPA Regulated Facilities in O'Brien County, IA
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 • SANBORN, IA (ZIP 51248 Sector) | HIGH (64/100) | Significant Violation (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • HARTLEY, IA (ZIP 51346 Sector) | MODERATE (49/100) | Violation Identified (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • SHELDON, IA (ZIP 51201 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • SHELDON, IA (ZIP 51201 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • PRIMGHAR, IA (ZIP 51245 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • SUTHERLAND, IA (ZIP 51058 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • SHELDON, IA (ZIP 51201 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| SHELDON HIGH SCHOOL FREE PREVIEW (LOW RISK) | 1700 EAST FOURTH STREET, SHELDON, IA 51201 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| SIOUXLAND FARMERS COOP ASSOCIATION SANBORN NH3 FREE PREVIEW (LOW RISK) | 309 FIRST STREET, SANBORN, IA 51248 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| NORTHWEST IOWA HEALTH CENTER FREE PREVIEW (LOW RISK) | 118 N 7TH AVE, SHELDON, IA 51201 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| CITY OF HARTLEY-RO WATER TREATMENT PLANT FREE PREVIEW (LOW RISK) | 121 2ND ST SE, HARTLEY, IA 51346 | LOW (13/100) | No Violation Identified (0 qtrs NC) | $0 |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • SHELDON, IA (ZIP 51201 Sector) | LOW (13/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
Frequently Asked Questions — O'Brien County, Iowa Environmental Due Diligence
How many EPA-regulated environmental sites are in O'Brien County, Iowa?
Public U.S. EPA records track 37 regulated facilities in O'Brien County, Iowa (ranking #101 of 117 jurisdictions in IA). Of those, 1 (2.7%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 2 (5.4%) have active non-compliance quarters.
Which ZIP codes and cities in O'Brien County have the highest regulated facility density?
Within O'Brien County, the highest concentrations of EPA-tracked facilities are located in ZIP 51346 (Hartley, 19 sites), ZIP 51248 (Sanborn, 15 sites), spanning municipal corridors including Hartley (19 sites), Sanborn (13 sites), Sutherland (Historical) (1 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in O'Brien County?
Across O'Brien County, 5 facilities (13.5% 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 O'Brien County, IA?
Geologic indoor air screening places O'Brien 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 O'Brien County, IA?
Federal records track 7 Safe Drinking Water (SDWIS) facilities, 10 Clean Water Act NPDES permits, and 1 impaired water dischargers in O'Brien County, alongside 1 historical FEMA federal disaster declarations (1 flood/storm events).
Does O'Brien County, IA have expansive clay soil or foundation risk?
USDA regional soil engineering screening for O'Brien County indicates a HIGH shrink-swell risk signal and steel pipe corrosivity rated Moderate. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.