Mahaska County, Iowa — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Mahaska County, IA?
In Mahaska County, Iowa, public U.S. EPA records track 162 regulated facilities (#28 of 117 in Iowa), including 3 (1.9%) High-Risk sites and $13,000 in federal penalties. Countywide due diligence also covers 6 Safe Drinking Water (SDWIS) facilities, 17 Clean Water NPDES permits, 7 FEMA Federal Disaster Declarations (6 flood/storm), USDA Soil Foundation Shrink-Swell (HIGH signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Mahaska 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📊 Mahaska County, IA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in Mahaska County
Top EPA Regulated Facilities in Mahaska 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 • BEACON, IA (ZIP 52534 Sector) | HIGH (64/100) | Significant Violation (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • OSKALOOSA, IA (ZIP 52577 Sector) | MODERATE (48/100) | Violation Identified (8 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • OSKALOOSA, IA (ZIP 52577 Sector) | MODERATE (47/100) | Resolved / Historical Non-Compliance (1 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • OSKALOOSA, IA (ZIP 52577 Sector) | MODERATE (41/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • NEW SHARON, IA (ZIP 50207 Sector) | MODERATE (37/100) | Violation Identified (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • OSKALOOSA, IA (ZIP 52577 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • ROSE HILL, IA (ZIP 52586 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (6 qtrs NC) | 🔒 6 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • OSKALOOSA, IA (ZIP 52577 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| HEARTLAND CAR CARE FREE PREVIEW (LOW RISK) | 201 A AVENUE WEST, OSKALOOSA, IA 52577 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| KELDERMAN MANUFACTURING FREE PREVIEW (LOW RISK) | 2686 HWY 92, OSKALOOSA, IA 52577 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| MAHASKA HEALTH PARTNERSHIP FREE PREVIEW (LOW RISK) | 1229 C AVENUE EAST, OSKALOOSA, IA 52577 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| CHURCH & DWIGHT CO INC FREE PREVIEW (LOW RISK) | 2360 HWY 23, OSKALOOSA, IA 52577 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Mahaska County, Iowa Environmental Due Diligence
How many EPA-regulated environmental sites are in Mahaska County, Iowa?
Public U.S. EPA records track 162 regulated facilities in Mahaska County, Iowa (ranking #28 of 117 jurisdictions in IA). Of those, 3 (1.9%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 4 (2.5%) have active non-compliance quarters.
Which ZIP codes and cities in Mahaska County have the highest regulated facility density?
Within Mahaska County, the highest concentrations of EPA-tracked facilities are located in ZIP 52577 (Oskaloosa, 119 sites), ZIP 52553 (Eddyville, 29 sites), ZIP 50207 (New Sharon, 26 sites), spanning municipal corridors including Oskaloosa (113 sites), Eddyville (28 sites), New Sharon (25 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Mahaska County?
Across Mahaska County, 70 facilities (43.2% 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 Mahaska County, IA?
Geologic indoor air screening places Mahaska 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 Mahaska County, IA?
Federal records track 6 Safe Drinking Water (SDWIS) facilities, 17 Clean Water Act NPDES permits, and 2 impaired water dischargers in Mahaska County, alongside 7 historical FEMA federal disaster declarations (6 flood/storm events).
Does Mahaska County, IA have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Mahaska County indicates a HIGH 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.