ZIP 56257 (Marietta, MN) — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
ZIP code 56257 in Marietta, Minnesota (Lac Qui Parle County) has 9 EPA-tracked facilities, including 0 High-Risk sites (0.0%), 0 active violators, and $0 in federal penalties. Beyond industrial pollution, properties in ZIP 56257 are screened across 3 historical Lac Qui Parle County FEMA disasters, USDA Soil Foundation Shrink-Swell (MODERATE signal), Tap Water & Watershed Permits (4), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
ZIP 56257 (Marietta, MN) 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 ZIP 56257 (Marietta, MN) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)ZIP 56257 Sector Screening Map (High-Risk Pin Coordinates Locked)
Exact street pins for 0 High-Risk and 0 Active Violation sites are redacted on public directory maps.
Regulated EPA Facilities in ZIP 56257 (Marietta, MN)
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 • MARIETTA, MN (ZIP 56257 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| MIKE & JARED ANHALT TURKEY FARM FREE PREVIEW (LOW RISK) | 1474 150TH ST, MARIETTA, MN 56257 | LOW (17/100) | Unknown (0 qtrs NC) | $0 |
| ISD 376 MARIETTA PUBLIC HIGH SCHOOL FREE PREVIEW (LOW RISK) | 4TH ST N, MARIETTA, MN 56257 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| FITZPATRICK TRACTOR REPAIR FREE PREVIEW (LOW RISK) | 1 BLOCK N OF ST HIGHWAY 40, MARIETTA, MN 56257 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| CHAD BOEHNKE DBA BOEHNKE'S WASTE HANDLING AND BOEHNKE WASTE HANDLING LLC FREE PREVIEW (LOW RISK) | 409 4TH AVE N, MARIETTA, MN 56257 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • MARIETTA, MN (ZIP 56257 Sector) | LOW (12/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • MARIETTA, MN (ZIP 56257 Sector) | LOW (12/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • NASSAU, MN (ZIP 56257 Sector) | LOW (12/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • MARIETTA, MN (ZIP 56257 Sector) | LOW (9/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
Frequently Asked Questions — ZIP 56257 (Marietta, MN) EPA Dataset & Radon
DATASET: U.S. EPA ECHO • FRS • RCRAInfo • TRI (November 01, 2026)How many EPA-tracked environmental sites are in ZIP code 56257 (Marietta, MN)?
ZIP code 56257 (Marietta, MN) contains 9 EPA-tracked facilities, of which 0 (0.0%) are classified in the High-Risk tier, 0 (0.0%) have active compliance violations, and 4 (44.4%) handle RCRA hazardous waste.
How does ZIP 56257 compare to Lac Qui Parle County and Minnesota averages?
In ZIP 56257, 0.0% of regulated sites are rated High Risk, compared to 0.0% across Lac Qui Parle County and 0.5% statewide in Minnesota.
What is the EPA Radon Zone and ASTM Phase I screening radius for ZIP 56257?
Geologic screening places ZIP 56257 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 56257 (Marietta, MN) in a FEMA flood zone and what is the flood disaster history?
Lac Qui Parle County has recorded 3 historical FEMA federal disaster declarations (3 flood, hurricane, or severe storm declarations). Run a street address scan in ZIP 56257 to unlock the exact parcel FEMA flood zone (AE / VE / X) and mandatory flood insurance status.
Does ZIP 56257 have expansive clay soil, foundation problems, or drinking water violations?
USDA regional soil screening for ZIP 56257 indicates a MODERATE shrink-swell risk signal. Within ZIP 56257, federal registries track 1 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.