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 8,700 regulated facilities (#15 of 136 in California), including 64 (0.7%) High-Risk sites and $15,310,083 in federal penalties. Countywide due diligence also covers 377 Safe Drinking Water (SDWIS) facilities, 590 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 03, 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 • LATHROP, CA (ZIP 95330 Sector) | HIGH (98/100) | Significant Violation (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • ACAMPO, CA (ZIP 95220 Sector) | HIGH (95/100) | Significant Violation (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • LINDEN, CA (ZIP 95236 Sector) | HIGH (95/100) | Significant Violation (12 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • MANTECA, CA (ZIP 95336 Sector) | HIGH (93/100) | Significant Violation (12 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • STOCKTON, CA (ZIP 95206 Sector) | HIGH (82/100) | Significant Violation (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • TRACY, CA (ZIP 95304 Sector) | HIGH (76/100) | Significant Violation (12 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • LODI, CA (ZIP 95240 Sector) | HIGH (72/100) | Significant Violation (12 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • STOCKTON, CA (ZIP 95206 Sector) | HIGH (71/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| RG AUTOMOTIVE FREE PREVIEW (LOW RISK) | 1108 S SACRAMENTO ST #C, LODI, CA 95240 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
| PG&E STOCKTON BUILDING FREE PREVIEW (LOW RISK) | 345 E CHANNEL ST, STOCKTON, CA 95202 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
| DOLLAR TREE #03771 FREE PREVIEW (LOW RISK) | 7528 PACIFIC AVE, STOCKTON, CA 95207 | LOW (15/100) | 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, California?
Public U.S. EPA records track 8,700 regulated facilities in San Joaquin County, California (ranking #15 of 136 jurisdictions in CA). Of those, 64 (0.7%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 54 (0.6%) have active non-compliance quarters.
Which ZIP codes and cities in San Joaquin County have the highest regulated facility density?
Within San Joaquin County, the highest concentrations of EPA-tracked facilities are located in ZIP 95206 (Stockton, 962 sites), ZIP 95205 (Stockton, 786 sites), ZIP 95240 (Lodi, 779 sites), spanning municipal corridors including Stockton (4,489 sites), Lodi (1,171 sites), Manteca (973 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in San Joaquin County?
Across San Joaquin County, 8,115 facilities (93.3% 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, CA?
Geologic indoor air screening places San Joaquin 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, CA?
Federal records track 377 Safe Drinking Water (SDWIS) facilities, 590 Clean Water Act NPDES permits, and 250 impaired water dischargers in San Joaquin 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.