Hennepin County, South Dakota — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Hennepin County, SD?
In Hennepin County, South Dakota, public U.S. EPA records track 2 regulated facilities (#141 of 141 in South Dakota), including 0 (0.0%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 0 Safe Drinking Water (SDWIS) facilities, 0 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).
Hennepin 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📊 Hennepin County, SD Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in Hennepin County
ZIP Codes in Hennepin County
Top EPA Regulated Facilities in Hennepin 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 |
|---|---|---|---|---|
| PROGRESSIVE CONTRACTORS INC FREE PREVIEW (LOW RISK) | PO BOX 407, SOUTH DAKOTA, SD 55369 | LOW (13/100) | No Violation Identified (0 qtrs NC) | $0 |
| DUSTCOATING INC FREE PREVIEW (LOW RISK) | 6925 D'CHENE LANE, SOUTH DAKOTA, SD 55359 | LOW (12/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Hennepin County, South Dakota Environmental Due Diligence
How many EPA-regulated environmental sites are in Hennepin County, South Dakota?
Public U.S. EPA records track 2 regulated facilities in Hennepin County, South Dakota (ranking #141 of 141 jurisdictions in SD). Of those, 0 (0.0%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 0 (0.0%) have active non-compliance quarters.
Which ZIP codes and cities in Hennepin County have the highest regulated facility density?
Within Hennepin County, the highest concentrations of EPA-tracked facilities are located in local postal sectors, spanning municipal corridors including South Dakota (104 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Hennepin County?
Across Hennepin County, 0 facilities (0.0% 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 Hennepin County, SD?
Geologic indoor air screening places Hennepin 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 Hennepin County, SD?
Federal records track 0 Safe Drinking Water (SDWIS) facilities, 0 Clean Water Act NPDES permits, and 0 impaired water dischargers in Hennepin County, alongside 15 historical FEMA federal disaster declarations (8 flood/storm events).
Does Hennepin County, SD have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Hennepin 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.