Los Angeles
Is Los Angeles tap water safe to drink?
Mostly yes — Los Angeles scores 80/100. This report aggregates EPA drinking water data across 2 local systems in Los Angeles. We found 0 total violations (0 unresolved).
Real-Time Environment
Live: 03:30 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Los Angeles.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Los Angeles?
Expert Advice
Given the safety margin, a Carbon Block or sediment filter is recommended to improve taste and remove trace particulates.
Buying a Filter?
Should you buy a water purifier in Los Angeles? See our analysis.
Baby Formula Safety
Is Los Angeles tap water safe for infants? Critical safety guide.
Homebuyer's Perspective
For those looking to relocate to Los Angeles, water quality is a key factor in long-term property maintenance. The high safety score (80/100) suggests lower risk for plumbing corrosion and appliance scaling.
Health & Family Safety
Residents should monitor Benzene levels. Pregnant women and families with young children should consult the specific EPA health goals listed below.
View Health Risk Glossary →Compliance Record for Los Angeles
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Los Angeles.
Frequently Asked Questions
Is Los Angeles tap water safe to drink?
Mostly yes — Los Angeles scores 80/100.
How many water systems serve Los Angeles?
Los Angeles is served by 2 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Los Angeles?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Los Angeles.
What is the water quality score for Los Angeles?
The water quality score for Los Angeles is 80 out of 100, based on EPA contaminant data, violation history, and testing results for all serving water systems.
What are the top contaminants in Los Angeles?
The top contaminants detected in Los Angeles include Benzene, Chromium (Total), Total Trihalomethanes. View detailed information on our contaminants page.
Los Angeles Water Quality Summary
Los Angeles, CA receives a water quality score of 80/100 (Grade B) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 3 public water systems serving the area.
Los Angeles's water quality is above the national average, with strong compliance records and low contaminant levels. Residents generally receive clean, safe tap water that meets EPA standards.
Los Angeles's score of 80 is 10 points below the California state average of 90, and above the nationwide average of roughly 78/100 across all U.S. states.
Living in a West Coast major metro area like Los Angeles, California means relying on a small handful of water systems that must contend with varied geology and nearby Central Valley agriculture. For prospective homebuyers and residents, the water quality is generally reliable and above average, though there remains clear potential for further optimization. Because characteristics can shift depending on regional geological influences and which specific system supplies a home, residents benefit from looking into their neighborhood's direct provider.
Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our California water quality rankings report →
Key Contaminants
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Water Systems Serving Los Angeles (2)
Check Your Specific Address
Water quality can vary by neighborhood in Los Angeles.
Related
Quick compare in California
Compare Los Angeles water quality: View all states · Contaminant library · How we score water quality