Edison, CA: 14 Health Violations — 39/100 (2026)
1 ZIP code · 3 water systems · Updated 2026-06-03
Federal monitoring data for Edison puts the city in CA's lower safety tier — exceedances show up in multiple utility districts, several systems have met thresholds requiring public notification under the Safe Drinking Water Act, and the compliance deficit has persisted across more than one consecutive reporting cycle, with no clear reversal visible in the most recent data available.
How Edison Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Edison Water
- Your city's water systems recorded 15 violations in the past 5 years.
- Estimated remediation: $1,000 per household.
- CDC health risk index: 12.57 — above typical levels.
Who Supplies Your Water in Edison
Water supply in Edison, CA follows a divided structure: 3 utilities account for the largest share of residential service out of 3 total systems, each managing its own distribution network and EPA reporting. Because these systems operate independently, rate decisions and compliance outcomes are determined separately.
Overview
We track water quality and home safety data for 1 ZIP code in Edison, California, covering 3 community water systems serving approximately 300,836 people.
1 of 1 ZIP code (100%) have recorded EPA violations. 14 health-based violations documented.
Home Safety Score
Average Home Safety Score for Edison: F (39/100)
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
Edison water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Edison
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Lead | Inorganic | 26 | 1 |
| Stage 2 DBP Rule | Treatment Technique | 4 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 93220 | F | 15 | 14 | Cws - Bakersfield |
All ZIP Codes in Edison
- 93220 [F] — 15 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.
Health Outcomes in Edison
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
Top Contaminants in Edison Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
What You Can Do in Edison
- 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 Lead can reduce the most common contaminant found in Edison's water.
- 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 Edison, CA