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Ventura County, California — Property Hazard, Flood Zone, Soil, Water & EPA Guide

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What Are the Flood, Soil Foundation & EPA Risks in Ventura County, CA?

In Ventura County, California, public U.S. EPA records track 16,894 regulated facilities (#10 of 136 in California), including 38 (0.2%) High-Risk sites and $13,240,731 in federal penalties. Countywide due diligence also covers 106 Safe Drinking Water (SDWIS) facilities, 1,023 Clean Water NPDES permits, 6 FEMA Federal Disaster Declarations (4 flood/storm), USDA Soil Foundation Shrink-Swell (LOW signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).

Total EPA Sites (#10/136)
16,894
High-Risk (0.2% vs 0.3% State)
38
Active Violators (0.3%)
52
Drinking & Clean Water
1,129
Federal Penalties
$13,240,731

Ventura 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
🌊 Flood Zone & FEMA Disaster History
6 County FEMA Declarations (4 Flood/Storm)
🔒 Exact Parcel Flood Zone (AE / VE / X) & SFHA Insurance Requirement Locked
Check Property Flood Zone →
🪨 USDA Soil, Foundation & Water Table
Shrink-Swell Risk Signal: LOW • Pipe Corrosion: Moderate
🔒 Exact USDA Soil Series, Linear Extensibility (LEP %) & Water Table Depth (ft) Locked
Unlock Parcel Soil Test →
🚰 Tap Water (SDWIS) & PFAS Check
106 SDWIS Systems • 1,023 NPDES Permits
🔒 578 Impaired Water (303d) & 252 Violation Dockets Locked
Unlock Utility Violation Log →
☢️ EPA Radon & Karst Sinkhole
EPA Zone 1 — High Potential (> 4.0 pCi/L)
Low / Non-Karst Bedrock & Alluvial Formation
🔒 0.25-Mi Vapor Intrusion Buffer Locked

📊 Ventura County, CA Statistical Risk Graphs & Multi-Hazard Telemetry

SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)
1. County Regulatory & Water Program Mix
RCRA Hazardous Waste Generators 16,623 (98.4%)
Clean Water (NPDES) & Drinking Water (SDWIS) 1,129 (6.7%)
Active EPA Non-Compliance Dockets 52 (0.3%)
High-Risk Enforcement Facilities 38 (0.2%)
2. FEMA NRI & USGS Hazard Index (1–10) Relatively High (99.4/100)
🌊 Flood Exposure 9/10 • Very High Hazard
🔥 Wildfire Hazard 7/10 • High Hazard
☀️ Extreme Heat 5/10 • Moderate Hazard
🌪️ Severe Wind / Storm 3/10 • Low Hazard
🫨 USGS Earthquake 7/10 • High Hazard
3. County vs. State & National Benchmark
Ventura County High-Risk % 0.2%
California (CA) Statewide Avg 0.3%
U.S. National EPA Baseline 3.6%
Unlock Street-Level Dossier: Full report reveals unredacted facility names, distances in feet, exact USDA soil LEP %, water table depth, and parcel flood zone.
🔒 Scan a Property Address in Ventura County →

ZIP Codes in Ventura County

93065 — Simi Valley (1,806) 93003 — Ventura (1,745) 93010 — Camarillo (1,474) 93030 — Oxnard (1,311) 91360 — Thousand Oaks (1,286) 93063 — Simi Valley (1,165) 91320 — Thousand Oaks (1,148) 93012 — Camarillo (1,010) 91362 — Thousand Oaks (865) 93001 — Ventura (839) 93041 — Port Hueneme (676) 93036 — Oxnard (648) 93060 — Santa Paula (618) 93004 — Ventura (581) 93301 — Oxnard (538) 93035 — Oxnard (474) 93021 — Moorpark (429) 93023 — Ojai (410) 93015 — Fillmore (279) 91377 — Oak Park (116) 93022 — Oak View (80) 93040 — Fillmore (51) 93042 — San Nicolas Island (32) 93043 — Port Hueneme (28) 93002 — Ventura (22) 93604 — Brandeis (20) 93032 — Camarillo (10) 93061 — Moorpark (10) 93031 — Oxnard (9) 93006 — Ventura (8) 93064 — Brandeis (7) 92360 — Thousand Oaks (7) 93011 — Camarillo (6) 93024 — Ojai (6) 93044 — Port Hueneme Cbc Base (6) 93062 — Simi Valley (6) 91066 — Somis (4) 91319 — Thousand Oaks (4) 93020 — Moorpark (3) 91230 — Newbury Park (3) 93056 — Simi Valley (3) 92063 — Simi Valley (3) 93007 — Ventura (3) 93016 — Fillmore (2) 93026 — Moorpark (2) 93050 — Santa Paula (2) 93120 — Camarillo (1) 93025 — Fillmore (1) 91037 — Oak Park (1) 93038 — Oxnard (1) 93939 — Oxnard (1) 93141 — Port Hueneme (1) 90343 — Port Hueneme (1) 93963 — Simi Valley (1) 90365 — Simi Valley (1) 91369 — Thousand Oaks (1) 91262 — Thousand Oaks (1) 91368 — Thousand Oaks (1) 93162 — Thousand Oaks (1) 93005 — Ventura (1)

Top EPA Regulated Facilities in Ventura 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).

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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 • SIMI VALLEY, CA (ZIP 93065 Sector) HIGH (72/100) Significant Violation (8 qtrs NC) 🔒 $100,000+ Federal Fine • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #2 🔒 Exact Street & Parcel Redacted • CAMARILLO, CA (ZIP 93012 Sector) HIGH (70/100) Violation Identified (4 qtrs NC) 🔒 $10,000+ Federal Fine • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #3 🔒 Exact Street & Parcel Redacted • OXNARD, CA (ZIP 93030 Sector) HIGH (65/100) Violation Identified (2 qtrs NC) 🔒 $10,000+ Federal Fine • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #4 🔒 Exact Street & Parcel Redacted • FRAZIER PARK, CA (ZIP 93225 Sector) HIGH (64/100) Resolved / Historical Non-Compliance (3 qtrs NC) 🔒 $100,000+ Federal Fine • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #5 🔒 Exact Street & Parcel Redacted • SIMI VALLEY, CA (ZIP 93065 Sector) HIGH (64/100) Resolved / Historical Non-Compliance (7 qtrs NC) 🔒 $10,000+ Federal Fine • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #6 🔒 Exact Street & Parcel Redacted • FILMORE, CA (ZIP 93015 Sector) HIGH (64/100) Significant Violation (10 qtrs NC) 🔒 Federal Penalty on File • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #7 🔒 Exact Street & Parcel Redacted • VENTURA, CA (ZIP 93001 Sector) HIGH (64/100) Significant Violation (9 qtrs NC) 🔒 9 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #8 🔒 Exact Street & Parcel Redacted • VENTURA, CA (ZIP 93003 Sector) MODERATE (60/100) Resolved / Historical Non-Compliance (10 qtrs NC) 🔒 $100,000+ Federal Fine • Unlock →
VENTURA RADIATOR AND AUTO REPAIR FREE PREVIEW (LOW RISK) 1342 E THOMPSON BLVD, VENTURA, CA 93001 LOW (15/100) No Violation Identified (0 qtrs NC) $0
TOTAL WINE AND MORE FREE PREVIEW (LOW RISK) 394 N. MOORPARK ROAD, THOUSAND OAKS, CA 91360 LOW (15/100) No Violation Identified (0 qtrs NC) $0
JACKALYN BLACK FREE PREVIEW (LOW RISK) 1451 N. RICE AVENUE, OXNARD, CA 93030 LOW (15/100) No Violation Identified (0 qtrs NC) $0
CONSERVATION ENDOWMENT FUND FREE PREVIEW (LOW RISK) , , CA LOW (11/100) Inactive (0 qtrs NC) $0
🔒 + 16,882 Additional Regulated & Enforcement Records in Ventura County Redacted from Public Directory Run 1-Mile Property Scan to Unlock All Records →

Frequently Asked Questions — Ventura County, California Environmental Due Diligence

How many EPA-regulated environmental sites are in Ventura County, California?

Public U.S. EPA records track 16,894 regulated facilities in Ventura County, California (ranking #10 of 136 jurisdictions in CA). Of those, 38 (0.2%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 52 (0.3%) have active non-compliance quarters.

Which ZIP codes and cities in Ventura County have the highest regulated facility density?

Within Ventura County, the highest concentrations of EPA-tracked facilities are located in ZIP 93065 (Simi Valley, 1,806 sites), ZIP 93003 (Ventura, 1,745 sites), ZIP 93010 (Camarillo, 1,474 sites), spanning municipal corridors including Oxnard (3,307 sites), Ventura (3,193 sites), Simi Valley (2,998 sites).

How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Ventura County?

Across Ventura County, 16,623 facilities (98.4% 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 Ventura County, CA?

Geologic indoor air screening places Ventura 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 Ventura County, CA?

Federal records track 106 Safe Drinking Water (SDWIS) facilities, 1,023 Clean Water Act NPDES permits, and 578 impaired water dischargers in Ventura County, alongside 6 historical FEMA federal disaster declarations (4 flood/storm events).

Does Ventura County, CA have expansive clay soil or foundation risk?

USDA regional soil engineering screening for Ventura 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.

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