Calaveras County, California — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Calaveras County, CA?
In Calaveras County, California, public U.S. EPA records track 570 regulated facilities (#55 of 136 in California), including 2 (0.4%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 59 Safe Drinking Water (SDWIS) facilities, 65 Clean Water NPDES permits, 5 FEMA Federal Disaster Declarations (3 flood/storm), USDA Soil Foundation Shrink-Swell (HIGH signal), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
Calaveras 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📊 Calaveras County, CA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Calaveras County
ZIP Codes in Calaveras County
Top EPA Regulated Facilities in Calaveras 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 • SAN ANDREAS, CA (ZIP 95249 Sector) | HIGH (70/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • FARMINGTON, CA (ZIP 95230 Sector) | MODERATE (41/100) | Resolved / Historical Non-Compliance (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • COPPEROPOLIS, CA (ZIP 95228 Sector) | MODERATE (39/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • ANGELS CAMP, CA (ZIP 95222 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • MURPHYS, CA (ZIP 95247 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • COPPEROPOLIS, CA (ZIP 95228 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • WILSEYVILLE, CA (ZIP 95251 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • DORRINGTON, CA (ZIP 95223 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| SADDLECREEK LLC DBA THE GOLF CLUB AT COPPER VALLEY FREE PREVIEW (LOW RISK) | 1001 SADDLE CREEK DR, COPPEROPOLIS, CA 95228 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| CARSON HILL GOLD MINE PROJECT FREE PREVIEW (LOW RISK) | 4795 CA-49, ANGELS CAMP, CA 95222 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| DOHS-CALAVERAS CO FREE PREVIEW (LOW RISK) | CALAVERAS CO, ANGELS CAMP, CA 95222 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| CCWD-ARNOLD CEDAR RIDGE LIFT STATION #1 FREE PREVIEW (LOW RISK) | 300 RED TAIL HAWK RD, ARNOLD, CA 95223 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Calaveras County, California Environmental Due Diligence
How many EPA-regulated environmental sites are in Calaveras County, California?
Public U.S. EPA records track 570 regulated facilities in Calaveras County, California (ranking #55 of 136 jurisdictions in CA). Of those, 2 (0.4%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 10 (1.8%) have active non-compliance quarters.
Which ZIP codes and cities in Calaveras County have the highest regulated facility density?
Within Calaveras County, the highest concentrations of EPA-tracked facilities are located in ZIP 95223 (Dorrington, 104 sites), ZIP 95249 (San Andreas, 103 sites), ZIP 95252 (Valley Springs, 103 sites), spanning municipal corridors including Valley Springs (104 sites), Angels Camp (102 sites), San Andreas (102 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Calaveras County?
Across Calaveras County, 496 facilities (87.0% 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 Calaveras County, CA?
Geologic indoor air screening places Calaveras 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 Calaveras County, CA?
Federal records track 59 Safe Drinking Water (SDWIS) facilities, 65 Clean Water Act NPDES permits, and 1 impaired water dischargers in Calaveras County, alongside 5 historical FEMA federal disaster declarations (3 flood/storm events).
Does Calaveras County, CA have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Calaveras 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.