Pasadena
Is Pasadena tap water safe to drink?
Mostly yes — Pasadena scores 97/100. This report aggregates EPA drinking water data across 3 local systems in Pasadena. We found 48 total violations (30 unresolved).
Real-Time Environment
Live: 09:15 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Pasadena.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Pasadena?
Expert Advice
Your water quality is excellent. Standard filtration is optional but can further enhance taste.
Buying a Filter?
Wondering if Pasadena tap water needs filtering? We break it down.
Baby Formula Safety
Mixing baby formula with Pasadena tap water? Read this first.
Homebuyer's Perspective
If you're house-hunting in Pasadena, water quality belongs on your due-diligence checklist alongside schools and crime data. The high safety score (97/100) suggests lower risk for plumbing corrosion and appliance scaling.
Health & Family Safety
Residents should monitor Lead (90th percentile) levels. Pregnant women and families with young children should consult the specific EPA health goals listed below.
View Health Risk Glossary →Compliance Record for Pasadena
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Pasadena.
Frequently Asked Questions
Is Pasadena tap water safe to drink?
Mostly yes — Pasadena scores 97/100.
How many water systems serve Pasadena?
Pasadena is served by 3 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Pasadena?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Pasadena.
What is the water quality score for Pasadena?
The water quality score for Pasadena is 97 out of 100, based on EPA contaminant data, violation history, and testing results across the 3 systems serving the city.
What are the top contaminants in Pasadena?
The top contaminants detected in Pasadena include Lead (90th percentile). View detailed information on our contaminants page.
Pasadena Water Quality Summary
Pasadena, CA receives a water quality score of 97/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 3 public water systems serving the area.
Pasadena'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.
Pasadena's score of 97 is 8 points above the California state average of 89, and above the nationwide average of roughly 78/100 across all U.S. states.
Residents and prospective homebuyers in this mid-size California city can feel reassured by the exceptional quality and top-tier rating of the local drinking water supply. Sourced and distributed through a small network of water systems, the supply successfully manages the varied geology and environmental factors common to West Coast regions characterized by large urban centers and agricultural valleys. This strong performance profile offers peace of mind for those establishing a household in Pasadena.
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 Pasadena (3)
Check Your Specific Address
Water quality can vary by neighborhood in Pasadena.
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