Humboldt County, Nevada — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
In Humboldt County, Nevada, public U.S. EPA records track 137 regulated facilities (#12 of 33 in Nevada), including 7 (5.1%) High-Risk sites and $16,100 in federal penalties. Countywide due diligence also covers 35 Safe Drinking Water (SDWIS) facilities, 69 Clean Water NPDES permits, 20 FEMA Federal Disaster Declarations (1 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
Humboldt County, NV 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Humboldt County, NV Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)Municipalities in Humboldt County
ZIP Codes in Humboldt County
Top EPA Regulated Facilities in Humboldt County, NV
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 • WINNEMUCCA, NV (ZIP 89445 Sector) | HIGH (66/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • WINNEMUCCA, NV (ZIP 89445 Sector) | HIGH (64/100) | Violation Identified (1 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • GOLCONDA, NV (ZIP 89414 Sector) | HIGH (64/100) | Significant Violation (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • , NV (ZIP Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • MCDERMITT, NV (ZIP 89421 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • VALMY, NV (ZIP 89438 Sector) | MODERATE (46/100) | Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • GOLCONDA, NV (ZIP 89414 Sector) | MODERATE (37/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • WINNEMUCCA, NV (ZIP 89445 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| SFPG TWIN CREEKS MINE SOUTH FREE PREVIEW (LOW RISK) | 30 MI NE OF GOLCONDA, GOLCONDA, NV 89414 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| TURQUOISE RIDGE MINE (GETCHELL MINE) FREE PREVIEW (LOW RISK) | 2055 GETCHELL MINE ROAD, GOLCONDA, NV 89414 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| NDOT INTERSTATE 80 BRIDGE I 1225 FREE PREVIEW (LOW RISK) | MILE POST HU9.66, WINNEMUCCA, NV 89445 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| BOSCH MOTORS FREE PREVIEW (LOW RISK) | 1205 E WINNEMUCCA BLVD, WINNEMUCCA, NV 89445 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Humboldt County, Nevada Environmental Due Diligence
How many EPA-regulated environmental sites are in Humboldt County, Nevada?
Public U.S. EPA records track 137 regulated facilities in Humboldt County, Nevada (ranking #12 of 33 jurisdictions in NV). Of those, 7 (5.1%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 9 (6.6%) have active non-compliance quarters.
Which ZIP codes and cities in Humboldt County have the highest regulated facility density?
Within Humboldt County, the highest concentrations of EPA-tracked facilities are located in ZIP 89445 (Winnemucca, 92 sites), ZIP 89414 (Golconda, 18 sites), ZIP 89438 (Valmy, 15 sites), spanning municipal corridors including Winnemucca (102 sites), Valmy (15 sites), Golconda (13 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Humboldt County?
Across Humboldt County, 68 facilities (49.6% 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 Humboldt County, NV?
Geologic indoor air screening places Humboldt 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 Humboldt County, NV?
Federal records track 35 Safe Drinking Water (SDWIS) facilities, 69 Clean Water Act NPDES permits, and 24 impaired water dischargers in Humboldt County, alongside 20 historical FEMA federal disaster declarations (1 flood/storm events).
Does Humboldt County, NV have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Humboldt County indicates a MODERATE shrink-swell risk signal and steel pipe corrosivity rated Moderate. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.