San Luis Obispo County, California — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in San Luis Obispo County, CA?
In San Luis Obispo County, California, public U.S. EPA records track 4,221 regulated facilities (#24 of 136 in California), including 17 (0.4%) High-Risk sites and $1,717,605 in federal penalties. Countywide due diligence also covers 182 Safe Drinking Water (SDWIS) facilities, 515 Clean Water NPDES permits, 5 FEMA Federal Disaster Declarations (5 flood/storm), USDA Soil Foundation Shrink-Swell (LOW signal), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
San Luis Obispo 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📊 San Luis Obispo County, CA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in San Luis Obispo County
ZIP Codes in San Luis Obispo County
Top EPA Regulated Facilities in San Luis Obispo 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 • PASO ROBLES, CA (ZIP 93446 Sector) | HIGH (77/100) | Significant Violation (12 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • SAN LUIS OBISPO, CA (ZIP 93409 Sector) | HIGH (74/100) | Violation Identified (10 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • ARROYO GRANDE, CA (ZIP 93420 Sector) | HIGH (72/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • PASO ROBLES, CA (ZIP 93446 Sector) | HIGH (64/100) | Significant Violation (10 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • AVILA BEACH, CA (ZIP 93424 Sector) | HIGH (64/100) | Significant Violation (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • OCEANO, CA (ZIP 93445 Sector) | MODERATE (49/100) | Unknown (3 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • SAN SIMEON, CA (ZIP 93452 Sector) | MODERATE (49/100) | Unknown (4 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • SAN LUIS OBISPO, CA (ZIP 93401 Sector) | MODERATE (48/100) | Resolved / Historical Non-Compliance (10 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| ZYMAX ENVIROTECHNOLOGY INC FREE PREVIEW (LOW RISK) | 71 ZACA LN, SAN LUIS OBISPO, CA 93401 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| ENNIS, INC. FREE PREVIEW (LOW RISK) | 298 SHERWOOD RD, PASO ROBLES, CA 93446 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| EM AND JR HOLDINGS INC FREE PREVIEW (LOW RISK) | 2640 BROAD STREET, SAN LUIS OBISPO, CA 93401 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| AUTO LIMITS AUTO REPAIR FREE PREVIEW (LOW RISK) | 2801 SPRING ST, PASO ROBLES, CA 93446 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — San Luis Obispo County, California Environmental Due Diligence
How many EPA-regulated environmental sites are in San Luis Obispo County, California?
Public U.S. EPA records track 4,221 regulated facilities in San Luis Obispo County, California (ranking #24 of 136 jurisdictions in CA). Of those, 17 (0.4%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 30 (0.7%) have active non-compliance quarters.
Which ZIP codes and cities in San Luis Obispo County have the highest regulated facility density?
Within San Luis Obispo County, the highest concentrations of EPA-tracked facilities are located in ZIP 93401 (San Luis Obispo, 1,145 sites), ZIP 93446 (Paso Robles, 883 sites), ZIP 93420 (Arroyo Grande, 516 sites), spanning municipal corridors including San Luis Obispo (1,545 sites), Paso Robles (918 sites), Arroyo Grande (509 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in San Luis Obispo County?
Across San Luis Obispo County, 3,962 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 San Luis Obispo County, CA?
Geologic indoor air screening places San Luis Obispo 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 San Luis Obispo County, CA?
Federal records track 182 Safe Drinking Water (SDWIS) facilities, 515 Clean Water Act NPDES permits, and 27 impaired water dischargers in San Luis Obispo County, alongside 5 historical FEMA federal disaster declarations (5 flood/storm events).
Does San Luis Obispo County, CA have expansive clay soil or foundation risk?
USDA regional soil engineering screening for San Luis Obispo County indicates a LOW 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.