Modoc County, California — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
In Modoc County, California, public U.S. EPA records track 144 regulated facilities (#79 of 136 in California), including 2 (1.4%) High-Risk sites and $1,400 in federal penalties. Countywide due diligence also covers 17 Safe Drinking Water (SDWIS) facilities, 18 Clean Water NPDES permits, 1 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).
Modoc 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📊 Modoc County, CA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 02, 2026)Municipalities in Modoc County
Top EPA Regulated Facilities in Modoc 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 • ALTURAS, CA (ZIP 96101 Sector) | HIGH (78/100) | Significant Violation (9 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • ALTURAS, CA (ZIP 96101 Sector) | HIGH (64/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • CEDARVILLE, CA (ZIP 96104 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • ALTURAS, CA (ZIP 96101 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • ADIN, CA (ZIP 96006 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • ALTURAS, CA (ZIP 96101 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • LIKELY, CA (ZIP 96116 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • ALTURAS, CA (ZIP 96101 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| LASSEN GOLD MINING INC FREE PREVIEW (LOW RISK) | 12 MI S OF ADIN OFF HWY 139, ADIN, CA 96006 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| USDA USFS R05 ALTURAS CA FREE PREVIEW (LOW RISK) | 608 S MAIN ST, ALTURAS, CA 96101 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| MODOC ENGINES FREE PREVIEW (LOW RISK) | 1208 NORTH EAST STREET, ALTURAS, CA 96101 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| BLUE WATER RECYCLING CORP FREE PREVIEW (LOW RISK) | 504 WEST 12TH ST, ALTURAS, CA 96101 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Modoc County, California Environmental Due Diligence
How many EPA-regulated environmental sites are in Modoc County, California?
Public U.S. EPA records track 144 regulated facilities in Modoc County, California (ranking #79 of 136 jurisdictions in CA). Of those, 2 (1.4%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 6 (4.2%) have active non-compliance quarters.
Which ZIP codes and cities in Modoc County have the highest regulated facility density?
Within Modoc County, the highest concentrations of EPA-tracked facilities are located in ZIP 96006 (Adin, 13 sites), ZIP 96015 (Canby, 12 sites), ZIP 96104 (Cedarville, 11 sites), spanning municipal corridors including Canby (12 sites), Cedarville (10 sites), Likely (5 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Modoc County?
Across Modoc County, 117 facilities (81.2% 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 Modoc County, CA?
Geologic indoor air screening places Modoc 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 Modoc County, CA?
Federal records track 17 Safe Drinking Water (SDWIS) facilities, 18 Clean Water Act NPDES permits, and 9 impaired water dischargers in Modoc County, alongside 1 historical FEMA federal disaster declarations (1 flood/storm events).
Does Modoc County, CA have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Modoc 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.