Dorchester County, South Carolina — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Dorchester County, SC?
In Dorchester County, South Carolina, public U.S. EPA records track 885 regulated facilities (#12 of 66 in South Carolina), including 17 (1.9%) High-Risk sites and $5,647,510 in federal penalties. Countywide due diligence also covers 37 Safe Drinking Water (SDWIS) facilities, 592 Clean Water NPDES permits, 7 FEMA Federal Disaster Declarations (6 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
Dorchester 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📊 Dorchester County, SC Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in Dorchester County
ZIP Codes in Dorchester County
Top EPA Regulated Facilities in Dorchester 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 High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • HARLEYVILLE, SC (ZIP 29448 Sector) | HIGH (89/100) | Significant Violation (12 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • RIDGEVILLE, SC (ZIP 29472 Sector) | HIGH (89/100) | Significant Violation (12 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • HARLEYVILLE, SC (ZIP 29448 Sector) | HIGH (83/100) | Violation Identified (12 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • HARLEYVILLE, SC (ZIP 29448 Sector) | HIGH (67/100) | Violation Identified (10 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • RIDGEVILLE, SC (ZIP 29472 Sector) | HIGH (66/100) | Violation Identified (3 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • SUMMERVILLE, SC (ZIP 29483 Sector) | HIGH (64/100) | Significant Violation (6 qtrs NC) | 🔒 6 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • ST GEORGE, SC (ZIP 29477 Sector) | HIGH (64/100) | Significant Violation (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • (CITY NOT PROVIDED), SC (ZIP 00000 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| AMERICAN LAFRANCE LLC FREE PREVIEW (LOW RISK) | 1116 NEWTON WAY, SUMMERVILLE, SC 29483 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| EVERRIS NORTH AMERICA INC - SUMMERVILLE FREE PREVIEW (LOW RISK) | 2755 W 5TH NORTH ST, SUMMERVILLE, SC 29483 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| STOKES IMPORT COLLISION CTR FREE PREVIEW (LOW RISK) | 3570 ASHLEY PHOSPHATE RD, NORTH CHARLESTON, SC 29418 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| TJ MAXX STORE# 0059 FREE PREVIEW (LOW RISK) | 412 AZALEA SQUARE BLVD, SUMMERVILLE, SC 29483 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Dorchester County, South Carolina Environmental Due Diligence
How many EPA-regulated environmental sites are in Dorchester County, South Carolina?
Public U.S. EPA records track 885 regulated facilities in Dorchester County, South Carolina (ranking #12 of 66 jurisdictions in SC). Of those, 17 (1.9%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 19 (2.1%) have active non-compliance quarters.
Which ZIP codes and cities in Dorchester County have the highest regulated facility density?
Within Dorchester County, the highest concentrations of EPA-tracked facilities are located in ZIP 29483 (Summerville, 512 sites), ZIP 29418 (Charleston, 320 sites), ZIP 29456 (Ladson, 184 sites), spanning municipal corridors including Ladson (141 sites), Ridgeville (88 sites), Dorchester (59 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Dorchester County?
Across Dorchester County, 234 facilities (26.4% 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 Dorchester County, SC?
Geologic indoor air screening places Dorchester 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 Dorchester County, SC?
Federal records track 37 Safe Drinking Water (SDWIS) facilities, 592 Clean Water Act NPDES permits, and 26 impaired water dischargers in Dorchester County, alongside 7 historical FEMA federal disaster declarations (6 flood/storm events).
Does Dorchester County, SC have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Dorchester County indicates a MODERATE 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.