Los Angeles, California Water Quality Report
Comprehensive analysis of tap water safety based on EPA data
Last updated: January 2026
Is Los Angeles's Water Safe to Drink?
Generally Safe. Los Angeles's tap water meets EPA standards for drinking water quality. The water scored 86/100 in our analysis.
Contaminants Found in Los Angeles's Water
1 contaminants tested • Data from EPA SDWIS database
| Contaminant | Level Detected | EPA Limit | % of Limit | Status |
|---|---|---|---|---|
Lead | 0.0039 mg/L | 0.015 mg/L | 26.0% | Safe |
Compliance Violations
Past EPA violations recorded for Los Angeles's water system
other
Contaminant 0800 - 1/1/2018
Resolvedother
Contaminant 0300 - 3/1/2016
Resolvedtreatment
Contaminant 0700 - 1/20/2016
Resolvedother
Contaminant 0700 - 1/1/2016
ResolvedAbout Los Angeles's Water System
LOS ANGELES-CITY, DEPT. OF WATER & POWER
- PWS ID:
- CA1910067
- Population Served:
- 3,875,566
- Water Source:
- surface
A-86/100
Los Angeles Water Quality Score
Based on EPA contaminant data and compliance records
100
Contaminants
68
Compliance
80
Infrastructure
Positive Findings
- Good overall water quality
- No violations in the past 3 years
- No health-based (MCL) violations
- All tested contaminants well below EPA limits
Protect Your Family's Water
Even with good water quality, many families choose to filter their water for extra peace of mind.
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Other Cities in California
Compare water quality with nearby cities.
View all California cities →Frequently Asked Questions
- Where does Los Angeles's water come from?
- Los Angeles primarily uses surface water sources.
- How often is Los Angeles's water tested?
- Water utilities are required to test for contaminants regularly and report results to the EPA.
- Should I use a water filter in Los Angeles?
- While the water meets EPA standards, many families choose filters for extra peace of mind.