Placer County, California — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Placer County, CA?
In Placer County, California, public U.S. EPA records track 3,845 regulated facilities (#26 of 136 in California), including 10 (0.3%) High-Risk sites and $5,559,576 in federal penalties. Countywide due diligence also covers 142 Safe Drinking Water (SDWIS) facilities, 277 Clean Water NPDES permits, 7 FEMA Federal Disaster Declarations (3 flood/storm), USDA Soil Foundation Shrink-Swell (HIGH signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Placer 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📊 Placer County, CA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in Placer County
ZIP Codes in Placer County
Top EPA Regulated Facilities in Placer 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 • LINCOLN, CA (ZIP 95648 Sector) | HIGH (70/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • ROSEVILLE, CA (ZIP 95678 Sector) | HIGH (64/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • ROSEVILLE, CA (ZIP 95747 Sector) | MODERATE (55/100) | Violation Identified (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • AUBURN, CA (ZIP 95603 Sector) | MODERATE (50/100) | Violation Identified (10 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • LINCOLN, CA (ZIP 95648 Sector) | MODERATE (48/100) | Resolved / Historical Non-Compliance (4 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • AUBURN, CA (ZIP 95602 Sector) | MODERATE (48/100) | Violation (8 qtrs NC) | 🔒 8 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • CARNELIAN BAY, CA (ZIP 96140 Sector) | MODERATE (40/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • LINCOLN, CA (ZIP 95648 Sector) | MODERATE (35/100) | Resolved / Historical Non-Compliance (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| CITY OF LINCOLN WWTP FREE PREVIEW (LOW RISK) | 1245 FIDDYMENT RD, LINCOLN, CA 95648 | LOW (19/100) | Unknown (0 qtrs NC) | $0 |
| FRAZIER DUO LLC DBA AUBURN AUTOHAUS FREE PREVIEW (LOW RISK) | 2855 GRASS VALLEY HWY STE B, AUBURN, CA 95603 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| CAR _ TRUCK PROS INC FREE PREVIEW (LOW RISK) | 11840 ATWOOD RD, AUBURN, CA 95603 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| 99 CENTS ONLY STORES FREE PREVIEW (LOW RISK) | 1617 DOUGLAS BLVD, ROSEVILLE, CA 95661 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Placer County, California Environmental Due Diligence
How many EPA-regulated environmental sites are in Placer County, California?
Public U.S. EPA records track 3,845 regulated facilities in Placer County, California (ranking #26 of 136 jurisdictions in CA). Of those, 10 (0.3%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 14 (0.4%) have active non-compliance quarters.
Which ZIP codes and cities in Placer County have the highest regulated facility density?
Within Placer County, the highest concentrations of EPA-tracked facilities are located in ZIP 95678 (Roseville, 702 sites), ZIP 95603 (Auburn, 571 sites), ZIP 95747 (Roseville, 441 sites), spanning municipal corridors including Roseville (1,556 sites), Auburn (778 sites), Loomis (213 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Placer County?
Across Placer County, 3,609 facilities (93.9% 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 Placer County, CA?
Geologic indoor air screening places Placer 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 Placer County, CA?
Federal records track 142 Safe Drinking Water (SDWIS) facilities, 277 Clean Water Act NPDES permits, and 56 impaired water dischargers in Placer County, alongside 7 historical FEMA federal disaster declarations (3 flood/storm events).
Does Placer County, CA have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Placer County indicates a HIGH 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.