West Hills, CA Water Safety: 54/100 (2026)
2 ZIP codes · 5 water systems · Updated 2026-06-03
In recent EPA cycles, West Hills shows a persistent below-average water quality pattern within CA — documented violations span multiple service areas and have appeared consistently across reporting periods.
How West Hills Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for West Hills Residents
- Estimated remediation: $1,000 per household.
- CDC health risk index: 10.78.
West Hills's Water Providers
With 3 utilities splitting service in West Hills, CA, water accountability is distributed across 5 systems on the federal record.
Overview
We track water quality and home safety data for 2 ZIP codes in West Hills, California (population ~25,823), covering 5 community water systems serving approximately 4,044,852 people region-wide.
No EPA violations recorded across any ZIP codes in West Hills — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for West Hills: D (54/100)
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
West Hills water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for West Hills
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 2 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 91307 | C | Los Angeles-city, Department of Water & Power | 3,875,566 |
| 91308 | D | LAS VIRGENES MWD | 72,602 |
All ZIP Codes in West Hills
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.
West Hills Community Health Snapshot
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
How Remediation Costs Compare in West Hills
In West Hills, the equity impact of remediation is proportionally small — not the kind of financial commitment that rises to the level of a genuine planning constraint, but a minor share of what most properties here are worth.
Remediation costs in West Hills are relatively low compared to home values. The $400–$1,700 estimated range is a small fraction of median property value. Home values are 23% above the California average.
West Hills: Flood History & Water Damage Risk
27 FEMA flood insurance claims are on file for West Hills, and 50% of local ZIP codes fall within federally designated flood zones — enough to put flood exposure on the planning radar, though short of the concentrated-risk threshold where treatment-system vulnerability becomes a primary consideration.
West Hills has a moderate flood history with 27 FEMA claims averaging $11,440 per payout. 50% 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>$1,000</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 West Hills
- 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. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for West Hills, CA