Harrison County, Mississippi — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Harrison County, MS?
In Harrison County, Mississippi, public U.S. EPA records track 1,013 regulated facilities (#1 of 96 in Mississippi), including 18 (1.8%) High-Risk sites and $5,927,040 in federal penalties. Countywide due diligence also covers 73 Safe Drinking Water (SDWIS) facilities, 428 Clean Water NPDES permits, 7 FEMA Federal Disaster Declarations (5 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 3 — Low Potential (< 2.0 pCi/L).
Harrison County, MS 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Harrison County, MS Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in Harrison County
ZIP Codes in Harrison County
Top EPA Regulated Facilities in Harrison County, MS
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 • PASS CHRISTIAN, MS (ZIP 39571 Sector) | HIGH (90/100) | Significant Violation (10 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • GULFPORT, MS (ZIP 39503 Sector) | HIGH (87/100) | Significant Violation (7 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • BILOXI, MS (ZIP 39532 Sector) | HIGH (69/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • GULFPORT, MS (ZIP 39503 Sector) | HIGH (64/100) | Violation Identified (2 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • BILOXI, MS (ZIP 39532 Sector) | HIGH (64/100) | Violation Identified (2 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • GULFPORT, MS (ZIP 39503 Sector) | HIGH (64/100) | Violation Identified (3 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • PASS CHRISTIAN, MS (ZIP 39571 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • BILOXI, MS (ZIP 39530 Sector) | HIGH (64/100) | Significant Violation (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| MSANG, COMBAT READINESS TRNG CTR, GPORT FREE PREVIEW (LOW RISK) | 4715 HEWES AVENUE, GULFPORT, MS 39507 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| HD SUPPLY PLUMBING HVAC LIMITED HG0729 FREE PREVIEW (LOW RISK) | 10645 AUTOMALL PARKWAY, D IBERVILLE, MS 39540 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| 4005 B RANDOLPH HOMES FREE PREVIEW (LOW RISK) | 301 EAST NORTH STREET, PASS CHRISTIAN, MS 39571 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| SAYLOR, ED CHRYSLER FREE PREVIEW (LOW RISK) | 435 PASS ROAD, GULFPORT, MS 39507 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Harrison County, Mississippi Environmental Due Diligence
How many EPA-regulated environmental sites are in Harrison County, Mississippi?
Public U.S. EPA records track 1,013 regulated facilities in Harrison County, Mississippi (ranking #1 of 96 jurisdictions in MS). Of those, 18 (1.8%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 31 (3.1%) have active non-compliance quarters.
Which ZIP codes and cities in Harrison County have the highest regulated facility density?
Within Harrison County, the highest concentrations of EPA-tracked facilities are located in ZIP 39503 (Gulfport, 259 sites), ZIP 39501 (Gulfport, 149 sites), ZIP 39532 (Biloxi, 137 sites), spanning municipal corridors including Gulfport (499 sites), Biloxi (264 sites), Long Beach (66 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Harrison County?
Across Harrison County, 483 facilities (47.7% 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 Harrison County, MS?
Geologic indoor air screening places Harrison County in EPA Zone 3 — Low Potential (< 2.0 pCi/L). Counties in EPA Radon Zone 3 have a predicted average indoor radon level below 2.0 pCi/L, indicating lower regional geologic radon risk.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in Harrison County, MS?
Federal records track 73 Safe Drinking Water (SDWIS) facilities, 428 Clean Water Act NPDES permits, and 16 impaired water dischargers in Harrison County, alongside 7 historical FEMA federal disaster declarations (5 flood/storm events).
Does Harrison County, MS have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Harrison County indicates a MODERATE shrink-swell risk signal and steel pipe corrosivity rated Moderate. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.