ZIP 52361 (Williamsburg, IA) — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
ZIP code 52361 in Williamsburg, Iowa (Iowa County) has 32 EPA-tracked facilities, including 4 High-Risk sites (12.5%), 4 active violators, and $5,000 in federal penalties. Beyond industrial pollution, properties in ZIP 52361 are screened across 1 historical Iowa County FEMA disasters, USDA Soil Foundation Shrink-Swell (MODERATE signal), Tap Water & Watershed Permits (12), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
ZIP 52361 (Williamsburg, 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 52361 (Williamsburg, IA) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)ZIP 52361 Sector Screening Map (High-Risk Pin Coordinates Locked)
Exact street pins for 4 High-Risk and 4 Active Violation sites are redacted on public directory maps.
Regulated EPA Facilities in ZIP 52361 (Williamsburg, 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 High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • WILLIAMSBURG, IA (ZIP 52361 Sector) | HIGH (73/100) | Significant Violation (12 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • WILLIAMSBURG, IA (ZIP 52361 Sector) | HIGH (64/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • WILLIAMSBURG, IA (ZIP 52361 Sector) | HIGH (64/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • WILLIAMSBURG, IA (ZIP 52361 Sector) | HIGH (64/100) | Significant Violation (6 qtrs NC) | 🔒 6 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • WILLIAMSBURG, IA (ZIP 52361 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • WILLIAMSBURG, IA (ZIP 52361 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (8 qtrs NC) | 🔒 8 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • WILLIAMSBURG, IA (ZIP 52361 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • WILLIAMSBURG, IA (ZIP 52361 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| MONSANTO CO - WILLIAMSBURG (LORTZ FARM) FREE PREVIEW (LOW RISK) | 2669 J AVE, WILLIAMSBURG, IA 52361 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| MONSANTO COMPANY FREE PREVIEW (LOW RISK) | 503 SOUTH MAPLEWOOD AVENUE, WILLIAMSBURG, IA 52361 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| COLONY VILLAGE RESTAURANT FREE PREVIEW (LOW RISK) | I80 @ EXIT #225, WILLIAMSBURG, IA 52361 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| DIEOMATIC TRUCKING INC FREE PREVIEW (LOW RISK) | 1531 N HIGHLAND ST, WILLIAMSBURG, IA 52361 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — ZIP 52361 (Williamsburg, 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 52361 (Williamsburg, IA)?
ZIP code 52361 (Williamsburg, IA) contains 32 EPA-tracked facilities, of which 4 (12.5%) are classified in the High-Risk tier, 4 (12.5%) have active compliance violations, and 18 (56.2%) handle RCRA hazardous waste.
How does ZIP 52361 compare to Iowa County and Iowa averages?
In ZIP 52361, 12.5% of regulated sites are rated High Risk, compared to 4.4% across Iowa County and 1.6% statewide in Iowa.
What is the EPA Radon Zone and ASTM Phase I screening radius for ZIP 52361?
Geologic screening places ZIP 52361 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 52361 (Williamsburg, IA) in a FEMA flood zone and what is the flood disaster history?
Iowa County has recorded 1 historical FEMA federal disaster declarations (1 flood, hurricane, or severe storm declarations). Run a street address scan in ZIP 52361 to unlock the exact parcel FEMA flood zone (AE / VE / X) and mandatory flood insurance status.
Does ZIP 52361 have expansive clay soil, foundation problems, or drinking water violations?
USDA regional soil screening for ZIP 52361 indicates a MODERATE shrink-swell risk signal. Within ZIP 52361, federal registries track 2 SDWIS drinking water facilities, 10 Clean Water NPDES permits, and 0 impaired water body dischargers. Unlock a full property report for exact soil LEP %, water table depth, and utility violation dockets.