ZIP 63664 (Potosi, MO) — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
ZIP code 63664 in Potosi, Missouri (Washington County) has 74 EPA-tracked facilities, including 1 High-Risk sites (1.4%), 5 active violators, and $6,750 in federal penalties. Beyond industrial pollution, properties in ZIP 63664 are screened across 4 historical Washington County FEMA disasters, USDA Soil Foundation Shrink-Swell (MODERATE signal), Tap Water & Watershed Permits (51), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
ZIP 63664 (Potosi, MO) 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 ZIP 63664 (Potosi, MO) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)ZIP 63664 Sector Screening Map (High-Risk Pin Coordinates Locked)
Exact street pins for 1 High-Risk and 5 Active Violation sites are redacted on public directory maps.
Regulated EPA Facilities in ZIP 63664 (Potosi, MO)
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 • POTOSI, MO (ZIP 63664 Sector) | HIGH (64/100) | Significant Violation (4 qtrs NC) | 🔒 4 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • POTOSI, MO (ZIP 63664 Sector) | MODERATE (34/100) | Violation Identified (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • POTOSI, MO (ZIP 63664 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • POTOSI, MO (ZIP 63664 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • POTOSI, MO (ZIP 63664 Sector) | MODERATE (32/100) | No Violation Identified (0 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • POTOSI, MO (ZIP 63664 Sector) | MODERATE (32/100) | Violation Identified (6 qtrs NC) | 🔒 6 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • POTOSI, MO (ZIP 63664 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • POTOSI, MO (ZIP 63664 Sector) | MODERATE (30/100) | Inactive (6 qtrs NC) | 🔒 6 Qtrs Non-Compliance • Unlock → |
| POTOSI R-3 HIGH SCHOOL FREE PREVIEW (LOW RISK) | 1 TROJAN DR, POTOSI, MO 63664 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| AT&T LONG LINES FREE PREVIEW (LOW RISK) | RURAL ROUTE (SHIRLEY), POTOSI, MO 63664 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| TRIMFOOT CO FREE PREVIEW (LOW RISK) | 1987 TRIMFOOT DRIVE, POTOSI, MO 63664 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| ARKANSAS MISSOURI POWER FREE PREVIEW (LOW RISK) | 219 E HIGH, POTOSI, MO 63664 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — ZIP 63664 (Potosi, MO) EPA Dataset & Radon
DATASET: U.S. EPA ECHO • FRS • RCRAInfo • TRI (November 01, 2026)How many EPA-tracked environmental sites are in ZIP code 63664 (Potosi, MO)?
ZIP code 63664 (Potosi, MO) contains 74 EPA-tracked facilities, of which 1 (1.4%) are classified in the High-Risk tier, 5 (6.8%) have active compliance violations, and 16 (21.6%) handle RCRA hazardous waste.
How does ZIP 63664 compare to Washington County and Missouri averages?
In ZIP 63664, 1.4% of regulated sites are rated High Risk, compared to 2.7% across Washington County and 1.5% statewide in Missouri.
What is the EPA Radon Zone and ASTM Phase I screening radius for ZIP 63664?
Geologic screening places ZIP 63664 in EPA Zone 2 — Moderate Potential (2.0 – 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 63664 (Potosi, MO) in a FEMA flood zone and what is the flood disaster history?
Washington County has recorded 4 historical FEMA federal disaster declarations (4 flood, hurricane, or severe storm declarations). Run a street address scan in ZIP 63664 to unlock the exact parcel FEMA flood zone (AE / VE / X) and mandatory flood insurance status.
Does ZIP 63664 have expansive clay soil, foundation problems, or drinking water violations?
USDA regional soil screening for ZIP 63664 indicates a MODERATE shrink-swell risk signal. Within ZIP 63664, federal registries track 4 SDWIS drinking water facilities, 47 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.