Corson County, South Dakota — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Corson County, SD?
In Corson County, South Dakota, public U.S. EPA records track 28 regulated facilities (#52 of 109 in South Dakota), including 0 (0.0%) High-Risk sites and $3,666 in federal penalties. Countywide due diligence also covers 5 Safe Drinking Water (SDWIS) facilities, 27 Clean Water NPDES permits, 15 FEMA Federal Disaster Declarations (8 flood/storm), USDA Soil Foundation Shrink-Swell (HIGH signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Corson County, SD 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Corson County, SD Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in Corson County
ZIP Codes in Corson County
Top EPA Regulated Facilities in Corson County, SD
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 • MCLAUGHLIN, SD (ZIP 57642 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • MOBRIDGE, SD (ZIP 57601 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (3 qtrs NC) | 🔒 3 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • , SD (ZIP 57273 Sector) | MODERATE (26/100) | Inactive (8 qtrs NC) | 🔒 8 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • , SD (ZIP Sector) | MODERATE (25/100) | Resolved / Historical Non-Compliance (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • , SD (ZIP Sector) | MODERATE (22/100) | Resolved / Historical Non-Compliance (4 qtrs NC) | 🔒 4 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • MC LAUGHLIN, SD (ZIP 57642 Sector) | MODERATE (21/100) | No Violation Identified (0 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| WAKPALA MRI WATER PROGRAM FREE PREVIEW (LOW RISK) | SE1/4 SW1/4 S24, T19N, R29E HWY 1806, WAKPALA, SD 57658 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| MCLAUGHLIN SCHOOL FREE PREVIEW (LOW RISK) | 601 MAIN ST, MCLAUGHLIN, SD 57642 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| TOWN OF MORRISTOWN FREE PREVIEW (LOW RISK) | PO BOX 34, MORRISTOWN, SD 57645 | LOW (13/100) | No Violation Identified (0 qtrs NC) | $0 |
| WILDER BUFFALO RANCH FREE PREVIEW (LOW RISK) | P.O.BOX 439, MCLAUGHLIN, SD 57642 | LOW (13/100) | No Violation Identified (0 qtrs NC) | $0 |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • WAKPALA, SD (ZIP 57658 Sector) | LOW (12/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • WAKPALA, SD (ZIP 57658 Sector) | LOW (12/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
Frequently Asked Questions — Corson County, South Dakota Environmental Due Diligence
How many EPA-regulated environmental sites are in Corson County, South Dakota?
Public U.S. EPA records track 28 regulated facilities in Corson County, South Dakota (ranking #52 of 109 jurisdictions in SD). Of those, 0 (0.0%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 2 (7.1%) have active non-compliance quarters.
Which ZIP codes and cities in Corson County have the highest regulated facility density?
Within Corson County, the highest concentrations of EPA-tracked facilities are located in ZIP 57658 (Wakpala, 10 sites), ZIP 57273 (Waubay, 10 sites), ZIP 57641 (Mcintosh, 7 sites), spanning municipal corridors including Wakpala (10 sites), Mcintosh (6 sites), Mc Laughlin (2 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Corson County?
Across Corson County, 1 facilities (3.6% 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 Corson County, SD?
Geologic indoor air screening places Corson County in EPA Zone 1 — High Potential (> 4.0 pCi/L). Counties in EPA Radon Zone 1 have a predicted average indoor radon screening level greater than 4.0 pCi/L (the EPA action threshold). Short-term or continuous indoor radon testing is strongly recommended prior to closing.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in Corson County, SD?
Federal records track 5 Safe Drinking Water (SDWIS) facilities, 27 Clean Water Act NPDES permits, and 3 impaired water dischargers in Corson County, alongside 15 historical FEMA federal disaster declarations (8 flood/storm events).
Does Corson County, SD have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Corson County indicates a HIGH 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.