Ventura, CA: 32 Health Violations — 57/100 (2026)
8 ZIP codes · 7 water systems · Updated 2026-06-03
For most households in Ventura, CA tap water is adequate — the middle-tier grade reflects gaps in specific service areas.
How Ventura Compares
Data: EPA SDWIS Last verified: 2026-06-03
Water Quality Map: Ventura, CA
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
Distribution of water safety grades across Ventura.
Ventura Water: The Quick Version
- Your city's water systems recorded 88 violations in the past 5 years.
- Average lead level: 0.0022 mg/L.
- Estimated remediation: $1,888 per household.
- CDC health risk index: 10.84.
Water Systems Serving Ventura
At present, 3 utilities serve the bulk of Ventura, CA's residential water connections out of 7 systems active in the area, spread across independent providers with separate infrastructure and compliance obligations.
Overview
We track water quality and home safety data for 8 ZIP codes in Ventura, California, covering 7 community water systems serving approximately 115,722 people.
8 of 8 ZIP codes (100%) have recorded EPA violations. 32 health-based violations documented.
Home Safety Score
Average Home Safety Score for Ventura: C (57/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Ventura water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0022 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
- Zone 1 (High): 8 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting | 63 | 8 |
| Stage 2 DBP Rule | Treatment Technique | 18 | 8 |
| Surface Water Treatment Rule | Treatment Technique | 18 | 8 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 93001 | D | 11 | 4 | Ventura Water Department |
| 93002 | C | 11 | 4 | Ventura Water Department |
| 93003 | C | 11 | 4 | Ventura Water Department |
| 93004 | C | 11 | 4 | Ventura Water Department |
| 93005 | C | 11 | 4 | Ventura Water Department |
| 93006 | C | 11 | 4 | Ventura Water Department |
| 93007 | C | 11 | 4 | Ventura Water Department |
| 93009 | C | 11 | 4 | Ventura Water Department |
All ZIP Codes in Ventura
- 93001 [D] — 11 violations ⚠
- 93002 [C] — 11 violations ⚠
- 93003 [C] — 11 violations ⚠
- 93004 [C] — 11 violations ⚠
- 93005 [C] — 11 violations ⚠
- 93006 [C] — 11 violations ⚠
- 93007 [C] — 11 violations ⚠
- 93009 [C] — 11 violations ⚠
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
CDC Health Data for Ventura
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Key Contaminants Detected in Ventura
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Ventura: Remediation Cost in Perspective
Because property values in Ventura comfortably exceed estimated remediation costs, the equity impact here is proportionally small.
Remediation costs in Ventura are relatively low compared to home values. The $863–$3,675 estimated range is a small fraction of median property value. Home values are 3% above the California average.
Protecting Children from Lead in Ventura
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Lead risk in Ventura appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Ventura
Within the NFIP's national dataset, Ventura falls in moderate-exposure territory — 419 documented incidents spanning multiple decades, with 25% of local ZIP codes sitting inside FEMA flood boundaries. That combination warrants inclusion in any thorough local water quality review.
Ventura has a moderate flood history with 419 FEMA claims averaging $7,578 per payout. 25% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$1,888</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
What You Can Do in Ventura
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. Filters rated for Consumer Confidence Report Rule can reduce the most common contaminant found in Ventura's water.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
Deep Dive Reports
Detailed analysis for Ventura, CA