Nevada County, California — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
In Nevada County, California, public U.S. EPA records track 1,259 regulated facilities (#42 of 136 in California), including 7 (0.6%) High-Risk sites and $71,800 in federal penalties. Countywide due diligence also covers 77 Safe Drinking Water (SDWIS) facilities, 98 Clean Water NPDES permits, 4 FEMA Federal Disaster Declarations (3 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Nevada County, CA 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Nevada County, CA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)Municipalities in Nevada County
ZIP Codes in Nevada County
Top EPA Regulated Facilities in Nevada County, CA
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 • PENN VALLEY, CA (ZIP 95946 Sector) | HIGH (71/100) | Significant Violation (11 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • SODA SPRINGS, CA (ZIP 95728 Sector) | HIGH (64/100) | Resolved / Historical Non-Compliance (8 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • NEVADA CITY, CA (ZIP 95959 Sector) | HIGH (64/100) | Resolved / Historical Non-Compliance (4 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • AUBURN, CA (ZIP 95602 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • NEVADA CITY, CA (ZIP 95959 Sector) | HIGH (64/100) | Significant Violation (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • FLORISTON, CA (ZIP 96111 Sector) | MODERATE (38/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • PENN VALLEY, CA (ZIP 95946 Sector) | MODERATE (36/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • GRASS VALLEY, CA (ZIP 95945 Sector) | MODERATE (36/100) | Resolved / Historical Non-Compliance (4 qtrs NC) | 🔒 4 Qtrs Non-Compliance • Unlock → |
| VECTOR OF CA LP DBA SIERRA PET CLINIC FREE PREVIEW (LOW RISK) | 10411 RIVER PARK PL, TRUCKEE, CA 96161 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| COUNTY OF NEVADA/FACILITIES SERVICE CENTER FREE PREVIEW (LOW RISK) | 10014 N BLOOMFIELD RD, NEVADA CITY, CA 95959 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| BIG BRAND TIRE & SERVICE FREE PREVIEW (LOW RISK) | 531 SEARLS AVE, NEVADA CITY, CA 95959 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| 314 BUENA VISTA AVE, GRASS VALLEY, CA FREE PREVIEW (LOW RISK) | 314 BUENA VISTA AVE, GRASS VALLEY, CA 95945 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Nevada County, California Environmental Due Diligence
How many EPA-regulated environmental sites are in Nevada County, California?
Public U.S. EPA records track 1,259 regulated facilities in Nevada County, California (ranking #42 of 136 jurisdictions in CA). Of those, 7 (0.6%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 9 (0.7%) have active non-compliance quarters.
Which ZIP codes and cities in Nevada County have the highest regulated facility density?
Within Nevada County, the highest concentrations of EPA-tracked facilities are located in ZIP 95945 (Grass Valley, 480 sites), ZIP 96161 (Truckee, 434 sites), ZIP 95959 (Nevada City, 179 sites), spanning municipal corridors including Truckee (457 sites), Nevada City (173 sites), Penn Valley (62 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Nevada County?
Across Nevada County, 1,151 facilities (91.4% 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 Nevada County, CA?
Geologic indoor air screening places Nevada 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 Nevada County, CA?
Federal records track 77 Safe Drinking Water (SDWIS) facilities, 98 Clean Water Act NPDES permits, and 13 impaired water dischargers in Nevada County, alongside 4 historical FEMA federal disaster declarations (3 flood/storm events).
Does Nevada County, CA have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Nevada County indicates a MODERATE shrink-swell risk signal and steel pipe corrosivity rated Low. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.