ZIP 50532 (Duncombe, IA) — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
ZIP code 50532 in Duncombe, Iowa (Webster County) has 11 EPA-tracked facilities, including 0 High-Risk sites (0.0%), 1 active violators, and $0 in federal penalties. Beyond industrial pollution, properties in ZIP 50532 are screened across 1 historical Webster County FEMA disasters, USDA Soil Foundation Shrink-Swell (HIGH signal), Tap Water & Watershed Permits (5), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
ZIP 50532 (Duncombe, IA) 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 ZIP 50532 (Duncombe, IA) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)ZIP 50532 Sector Screening Map (High-Risk Pin Coordinates Locked)
Exact street pins for 0 High-Risk and 1 Active Violation sites are redacted on public directory maps.
Regulated EPA Facilities in ZIP 50532 (Duncombe, 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 Score (0–100) | Compliance Status | Enforcement / Unlock |
|---|---|---|---|---|
| 🔒 Locked Regulated EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • DUNCOMBE, IA (ZIP 50532 Sector) | MODERATE (45/100) | Violation Identified (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • DUNCOMBE, IA (ZIP 50532 Sector) | MODERATE (31/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • DUNCOMBE, IA (ZIP 50532 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| LINDE - FORT DODGE, IA FREE PREVIEW (LOW RISK) | 3160 200TH ST., DUNCOMBE, IA 50532 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| FARMLAND INDUSTRIES INC FREE PREVIEW (LOW RISK) | 190 WILLIAMS ST, DUNCOMBE, IA 50532 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| MID IOWA AUTO & TRUCK SALES FREE PREVIEW (LOW RISK) | 202 SIMPSON (HWY 20 W), DUNCOMBE, IA 50532 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| NORTHERN NATURAL GAS - MAINS NO VALVE 5 FREE PREVIEW (LOW RISK) | 2050 UNION AVE, DUNCOMBE, IA 50532 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • DUNCOMBE, IA (ZIP 50532 Sector) | LOW (12/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • DUNCOMBE, IA (ZIP 50532 Sector) | LOW (10/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • DUNCOMBE, IA (ZIP 50532 Sector) | LOW (8/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
Frequently Asked Questions — ZIP 50532 (Duncombe, IA) EPA Dataset & Radon
DATASET: U.S. EPA ECHO • FRS • RCRAInfo • TRI (November 01, 2026)How many EPA-tracked environmental sites are in ZIP code 50532 (Duncombe, IA)?
ZIP code 50532 (Duncombe, IA) contains 11 EPA-tracked facilities, of which 0 (0.0%) are classified in the High-Risk tier, 1 (9.1%) have active compliance violations, and 6 (54.5%) handle RCRA hazardous waste.
How does ZIP 50532 compare to Webster County and Iowa averages?
In ZIP 50532, 0.0% of regulated sites are rated High Risk, compared to 2.0% across Webster County and 1.6% statewide in Iowa.
What is the EPA Radon Zone and ASTM Phase I screening radius for ZIP 50532?
Geologic screening places ZIP 50532 in EPA Zone 1 — High Potential (> 4.0 pCi/L). Property buyers should screen a 0.25-mile immediate buffer for vapor-intrusion sources and a 1.0-mile radius for CERCLA/RCRA sites.
Is ZIP 50532 (Duncombe, IA) in a FEMA flood zone and what is the flood disaster history?
Webster County has recorded 1 historical FEMA federal disaster declarations (1 flood, hurricane, or severe storm declarations). Run a street address scan in ZIP 50532 to unlock the exact parcel FEMA flood zone (AE / VE / X) and mandatory flood insurance status.
Does ZIP 50532 have expansive clay soil, foundation problems, or drinking water violations?
USDA regional soil screening for ZIP 50532 indicates a HIGH shrink-swell risk signal. Within ZIP 50532, federal registries track 2 SDWIS drinking water facilities, 3 Clean Water NPDES permits, and 1 impaired water body dischargers. Unlock a full property report for exact soil LEP %, water table depth, and utility violation dockets.