Woodbury County, Iowa — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
In Woodbury County, Iowa, public U.S. EPA records track 477 regulated facilities (#7 of 117 in Iowa), including 4 (0.8%) High-Risk sites and $25,775 in federal penalties. Countywide due diligence also covers 36 Safe Drinking Water (SDWIS) facilities, 53 Clean Water NPDES permits, 2 FEMA Federal Disaster Declarations (1 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Woodbury 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📊 Woodbury County, IA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)Municipalities in Woodbury County
ZIP Codes in Woodbury County
Top EPA Regulated Facilities in Woodbury 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 • SLOAN, IA (ZIP 51055 Sector) | HIGH (69/100) | Significant Violation (12 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • SERGEANT BLUFF, IA (ZIP 51054 Sector) | HIGH (65/100) | Significant Violation (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • SIOUX CITY, IA (ZIP 51101 Sector) | HIGH (64/100) | Violation Identified (10 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • SIOUX CITY, IA (ZIP 51111 Sector) | HIGH (64/100) | Resolved / Historical Non-Compliance (2 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • SERGEANT BLUFF, IA (ZIP 51054 Sector) | MODERATE (55/100) | Violation Identified (3 qtrs NC) | 🔒 3 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • SERGEANT BLUFF, IA (ZIP 51054 Sector) | MODERATE (51/100) | Violation Identified (3 qtrs NC) | 🔒 3 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • SALIX, IA (ZIP 51052 Sector) | MODERATE (50/100) | Violation Identified (3 qtrs NC) | 🔒 3 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • SIOUX CITY, IA (ZIP 51105 Sector) | MODERATE (49/100) | Violation Identified (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| IPC INTERSTATE POWDER COATINGS FREE PREVIEW (LOW RISK) | 1400 W 1ST ST, SIOUX CITY, IA 51103 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| BNSF RAILWAY SIOUX CITY YARD FREE PREVIEW (LOW RISK) | 1801 HIGHWAY 75 NORTH, SIOUX CITY, IA 51105 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| BINBO BAKERIES INC FREE PREVIEW (LOW RISK) | 1500 N HIGHWAY 75, SIOUX CITY, IA 51102 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| CARDIS MFG CO FREE PREVIEW (LOW RISK) | 1530 TRI VIEW AVE, SIOUX CITY, IA 51103 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Woodbury County, Iowa Environmental Due Diligence
How many EPA-regulated environmental sites are in Woodbury County, Iowa?
Public U.S. EPA records track 477 regulated facilities in Woodbury County, Iowa (ranking #7 of 117 jurisdictions in IA). Of those, 4 (0.8%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 15 (3.1%) have active non-compliance quarters.
Which ZIP codes and cities in Woodbury County have the highest regulated facility density?
Within Woodbury County, the highest concentrations of EPA-tracked facilities are located in ZIP 51101 (Sioux City, 79 sites), ZIP 51105 (Sioux City, 74 sites), ZIP 51106 (Sioux City, 70 sites), spanning municipal corridors including Sioux City (370 sites), Sergeant Bluff (34 sites), Moville (14 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Woodbury County?
Across Woodbury County, 315 facilities (66.0% 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 Woodbury County, IA?
Geologic indoor air screening places Woodbury 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 Woodbury County, IA?
Federal records track 36 Safe Drinking Water (SDWIS) facilities, 53 Clean Water Act NPDES permits, and 25 impaired water dischargers in Woodbury County, alongside 2 historical FEMA federal disaster declarations (1 flood/storm events).
Does Woodbury County, IA have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Woodbury 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.