Charleston County, South Carolina — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Charleston County, SC?
In Charleston County, South Carolina, public U.S. EPA records track 46 regulated facilities (#49 of 66 in South Carolina), including 0 (0.0%) High-Risk sites and $4,500 in federal penalties. Countywide due diligence also covers 2 Safe Drinking Water (SDWIS) facilities, 15 Clean Water NPDES permits, 6 FEMA Federal Disaster Declarations (5 flood/storm), USDA Soil Foundation Shrink-Swell (LOW signal), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
Charleston County, SC 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Charleston County, SC Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Charleston County
ZIP Codes in Charleston County
Top EPA Regulated Facilities in Charleston County, SC
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 Regulated EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • NORTH CHARLESTON, SC (ZIP 29405 Sector) | MODERATE (41/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • CHARLESTON, SC (ZIP 29406 Sector) | MODERATE (34/100) | Resolved / Historical Non-Compliance (2 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • CHARLESTON, SC (ZIP 29418 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • NORTH CHARLESTO, SC (ZIP 29405 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • CHARLESTON, SC (ZIP 29401 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • ISLE OF PALMS, SC (ZIP 29451 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • MOUNT PLEASANT, SC (ZIP 29464 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • MOUNT PLEASANT, SC (ZIP 29464 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| G & I III LEEDS LLC - EXEMPT FREE PREVIEW (LOW RISK) | 4500 LEEDS AVE, NORTH CHARLESTON, SC 29405 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| NEW HORIZON SHUTTERS INTERNATIONAL LLC FREE PREVIEW (LOW RISK) | 7259 SPA RD STE B, NORTH CHARLESTON, SC 29418 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| STARFLEET MARINE TRANSPORTATION, INC. FREE PREVIEW (LOW RISK) | 4 SEAFOOD DR, MOUNT PLEASANT, SC 29464 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| CARVER MARITIME LLC FREE PREVIEW (LOW RISK) | 1210 TRUXTUN AVE, N CHARLESTON, SC 29405 | LOW (13/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Charleston County, South Carolina Environmental Due Diligence
How many EPA-regulated environmental sites are in Charleston County County, South Carolina?
Public U.S. EPA records track 46 regulated facilities in Charleston County County, South Carolina (ranking #49 of 66 jurisdictions in SC). Of those, 0 (0.0%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 1 (2.2%) have active non-compliance quarters.
Which ZIP codes and cities in Charleston County County have the highest regulated facility density?
Within Charleston County County, the highest concentrations of EPA-tracked facilities are located in local postal sectors, spanning municipal corridors including North Charlesto (1 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Charleston County County?
Across Charleston County County, 4 facilities (8.7% 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 Charleston County County, SC?
Geologic indoor air screening places Charleston County County in EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L). Counties in EPA Radon Zone 2 have a predicted average indoor radon level between 2.0 and 4.0 pCi/L. Testing basement or ground-floor living areas is recommended during home inspection.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in Charleston County County, SC?
Federal records track 2 Safe Drinking Water (SDWIS) facilities, 15 Clean Water Act NPDES permits, and 1 impaired water dischargers in Charleston County County, alongside 6 historical FEMA federal disaster declarations (5 flood/storm events).
Does Charleston County, SC have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Charleston County indicates a LOW shrink-swell risk signal and steel pipe corrosivity rated High. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.