Lyman County, South Dakota — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Lyman County, SD?
In Lyman County, South Dakota, public U.S. EPA records track 25 regulated facilities (#60 of 109 in South Dakota), including 1 (4.0%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 0 Safe Drinking Water (SDWIS) facilities, 22 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).
Lyman 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📊 Lyman County, SD Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in Lyman County
ZIP Codes in Lyman County
Top EPA Regulated Facilities in Lyman 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 High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • LOWER BRULE, SD (ZIP 57548 Sector) | HIGH (64/100) | Significant Violation (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • PRESHO, SD (ZIP 57568 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • PRESHO, SD (ZIP 57568 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| PCN 05EF FREE PREVIEW (LOW RISK) | FROM EXIT 226 TO 1 MILE EAST OF EXIT 251, KENNEBEC, SD 57544 | LOW (13/100) | No Violation Identified (0 qtrs NC) | $0 |
| KENNEBEC MAIN STREET RECONSTRUCT FREE PREVIEW (LOW RISK) | MAIN STREET (FROM 2ND ST TO RAILWAY ST), KENNEBEC, SD 57544 | LOW (12/100) | No Violation Identified (0 qtrs NC) | $0 |
| HWY 47 PROJECTS PCN'S 069Q, 067C, 06Q8,05UN; I-90 06P1 FREE PREVIEW (LOW RISK) | 32833 HWY 47, RELIANCE, SD 57569 | LOW (12/100) | No Violation Identified (0 qtrs NC) | $0 |
| MEDICINE CREEK BRIDGE REPLACEMENT FREE PREVIEW (LOW RISK) | BIA ROUTE 10, LOWER BRULE, SD 57548 | LOW (12/100) | No Violation Identified (0 qtrs NC) | $0 |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • LOWER BRULE, SD (ZIP 57548 Sector) | LOW (12/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • PRESHO, SD (ZIP 57568 Sector) | LOW (12/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • PRESHO, SD (ZIP 57568 Sector) | LOW (12/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • KENNEBEC, SD (ZIP 57544 Sector) | LOW (12/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • LOWER BRULE, SD (ZIP 57548 Sector) | LOW (12/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
Frequently Asked Questions — Lyman County, South Dakota Environmental Due Diligence
How many EPA-regulated environmental sites are in Lyman County County, South Dakota?
Public U.S. EPA records track 25 regulated facilities in Lyman County County, South Dakota (ranking #60 of 109 jurisdictions in SD). Of those, 1 (4.0%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 1 (4.0%) have active non-compliance quarters.
Which ZIP codes and cities in Lyman County County have the highest regulated facility density?
Within Lyman County County, the highest concentrations of EPA-tracked facilities are located in ZIP 57568 (Presho, 15 sites), ZIP 57569 (Reliance, 8 sites), ZIP 57544 (Kennebec, 7 sites), spanning municipal corridors including Presho (15 sites), Kennebec (7 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Lyman County County?
Across Lyman County County, 1 facilities (4.0% 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 Lyman County County, SD?
Geologic indoor air screening places Lyman County 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 Lyman County County, SD?
Federal records track 0 Safe Drinking Water (SDWIS) facilities, 22 Clean Water Act NPDES permits, and 1 impaired water dischargers in Lyman County County, alongside 15 historical FEMA federal disaster declarations (8 flood/storm events).
Does Lyman County, SD have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Lyman 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.