Woodland Hills, CA Water Safety: 52/100 (2026)
4 ZIP codes · 3 water systems · Updated 2026-06-04
Drinking water quality in Woodland Hills has lagged behind CA benchmarks — documented violations keep the safety grade low.
How Woodland Hills Compares
Data: EPA SDWIS Last verified: 2026-06-04
Key Facts for Woodland Hills Residents
- Estimated remediation: $1,000 per household.
- CDC health risk index: 10.71.
Woodland Hills's Water Providers
In Woodland Hills, CA, residential water supply is distributed across multiple utilities rather than concentrated in one. The 3 leading providers out of 3 tracked systems each control their own infrastructure, file separate EPA compliance reports, and set independent rate schedules.
Overview
We track water quality and home safety data for 4 ZIP codes in Woodland Hills, California (population ~74,089), covering 3 community water systems serving approximately 3,980,516 people region-wide.
No EPA violations recorded across any ZIP codes in Woodland Hills — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Woodland Hills: D (52/100)
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
Woodland Hills water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Woodland 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): 4 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 |
|---|---|---|---|
| 91364 | D | LAS VIRGENES MWD | 72,602 |
| 91365 | D | LAS VIRGENES MWD | 72,602 |
| 91367 | D | Los Angeles-city, Department of Water & Power | 3,875,566 |
| 91371 | D | Los Angeles-city, Department of Water & Power | 3,875,566 |
All ZIP Codes in Woodland 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.
Woodland 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 Woodland Hills
Remediation costs in Woodland Hills are small relative to typical property values — the cost-to-value ratio here is favorable.
Remediation costs in Woodland 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 57% above the California average.
Woodland Hills: Flood History & Water Damage Risk
Flood exposure in Woodland Hills is meaningful by NFIP measures — 242 claims on record and 50% of ZIP codes carrying FEMA flood zone designations. That level of activity makes flood history a relevant factor when evaluating local water quality over time.
Woodland Hills has a moderate flood history with 242 FEMA claims averaging $7,048 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 Woodland 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 Woodland Hills, CA