Mission Hills, CA Water Safety: 56/100 (2026)
3 ZIP codes · 2 water systems · Updated 2026-06-03
Mission Hills shows moderate tap water quality for CA — some areas carry documented EPA violations while others meet standards without issues.
How Mission Hills Compares
Data: EPA SDWIS Last verified: 2026-06-03
Mission Hills Water: The Quick Version
- Estimated remediation: $800 per household.
- CDC health risk index: 10.71.
Water Systems Serving Mission Hills
2 water utilities share the residential service territory in Mission Hills, CA — out of 2 total systems in federal records.
Overview
We track water quality and home safety data for 3 ZIP codes in Mission Hills, California (population ~18,282), covering 2 community water systems serving approximately 3,899,512 people region-wide.
No EPA violations recorded across any ZIP codes in Mission Hills — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Mission Hills: C (56/100)
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
Mission Hills water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Mission 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): 3 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 |
|---|---|---|---|
| 91345 | C | Los Angeles-city, Department of Water & Power | 3,875,566 |
| 91346 | D | SAN FERNANDO-CITY, WATER DEPT. | 23,946 |
| 91395 | D | SAN FERNANDO-CITY, WATER DEPT. | 23,946 |
All ZIP Codes in Mission 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.
CDC Health Data for Mission Hills
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
Mission Hills: Remediation Cost in Perspective
In Mission Hills, documented water and safety issues can be addressed without making a meaningful dent in home equity — the financial proportionality here is favorable, and the commitment fits within standard property planning frameworks.
Remediation costs in Mission Hills are relatively low compared to home values. The $267–$1,400 estimated range is a small fraction of median property value. Home values are 11% below the California average.
Climate-Related Water Risk for Mission Hills
Flood exposure in Mission Hills is limited — NFIP data records a modest claim total, keeping major water-quality disruption from flooding well outside the typical planning horizon for most residents.
Mission Hills has a relatively low flood history with 1 FEMA claims on record. While risk is limited, severe weather events can still impact water infrastructure.
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>$800</strong> remediation cost per household.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
What You Can Do in Mission 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.
Deep Dive Reports
Detailed analysis for Mission Hills, CA