San Joaquin County, California — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in San Joaquin County, CA?
In San Joaquin County, California, public U.S. EPA records track 293 regulated facilities (#65 of 136 in California), including 7 (2.4%) High-Risk sites and $4,835,162 in federal penalties. Countywide due diligence also covers 0 Safe Drinking Water (SDWIS) facilities, 257 Clean Water NPDES permits, 4 FEMA Federal Disaster Declarations (4 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
San Joaquin 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 Joaquin County, CA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in San Joaquin County
ZIP Codes in San Joaquin County
Top EPA Regulated Facilities in San Joaquin 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 • STOCKTON, CA (ZIP 95206 Sector) | HIGH (86/100) | Significant Violation (12 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • TRACY, CA (ZIP 95377 Sector) | HIGH (74/100) | Resolved / Historical Non-Compliance (9 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • STOCKTON, CA (ZIP 95206 Sector) | MODERATE (58/100) | Resolved / Historical Non-Compliance (3 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • STOCKTON, CA (ZIP 95203 Sector) | MODERATE (53/100) | Resolved / Historical Non-Compliance (3 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • STOCKTON, CA (ZIP 95206 Sector) | MODERATE (41/100) | Resolved / Historical Non-Compliance (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • STOCKTON, CA (ZIP 95202 Sector) | MODERATE (38/100) | No Violation Identified (0 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • STOCKTON, CA (ZIP 95206 Sector) | MODERATE (38/100) | Violation Identified (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • ESCALON, CA (ZIP 95320 Sector) | MODERATE (35/100) | Resolved / Historical Non-Compliance (10 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| DONALDSON COMPANY INC. FREE PREVIEW (LOW RISK) | 1641 E. CITATION STREET, STOCKTON, CA 95206 | LOW (25/100) | No Violation Identified (0 qtrs NC) | $0 |
| COSTCO WHOLESALE 725 FREE PREVIEW (LOW RISK) | 25149 S SCHULTE RD, TRACY, CA 95377 | LOW (24/100) | No Violation Identified (0 qtrs NC) | $0 |
| 99 AUTO DISMANTLER FREE PREVIEW (LOW RISK) | 3532 E MINER AVE, STOCKTON, CA 95205 | LOW (24/100) | No Violation Identified (0 qtrs NC) | $0 |
| FOODLINER INC FREE PREVIEW (LOW RISK) | 2431 MARIPOSA ROAD, STOCKTON, CA 95205 | LOW (24/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — San Joaquin County, California Environmental Due Diligence
How many EPA-regulated environmental sites are in San Joaquin County County, California?
Public U.S. EPA records track 293 regulated facilities in San Joaquin County County, California (ranking #65 of 136 jurisdictions in CA). Of those, 7 (2.4%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 15 (5.1%) have active non-compliance quarters.
Which ZIP codes and cities in San Joaquin County County have the highest regulated facility density?
Within San Joaquin County County, the highest concentrations of EPA-tracked facilities are located in ZIP 95213 (Stockton, 11 sites), spanning municipal corridors including San Joaquin County.
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in San Joaquin County County?
Across San Joaquin County County, 62 facilities (21.2% 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 San Joaquin County County, CA?
Geologic indoor air screening places San Joaquin County 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 Joaquin County County, CA?
Federal records track 0 Safe Drinking Water (SDWIS) facilities, 257 Clean Water Act NPDES permits, and 97 impaired water dischargers in San Joaquin County County, alongside 4 historical FEMA federal disaster declarations (4 flood/storm events).
Does San Joaquin County, CA have expansive clay soil or foundation risk?
USDA regional soil engineering screening for San Joaquin 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.