Pomona
Is Pomona tap water safe to drink?
Mostly yes — Pomona scores 84/100. This report aggregates EPA drinking water data across 2 local systems in Pomona. We found 48 total violations (29 unresolved).
Real-Time Environment
Live: 05:45 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Pomona.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Pomona?
Expert Advice
Given the safety margin, a Carbon Block or sediment filter is recommended to improve taste and remove trace particulates.
Buying a Filter?
Filtration technologies matched to Pomona contaminant records.
Baby Formula Safety
Guidance on preparing infant formula using municipal tap water in Pomona.
Homebuyer's Perspective
Municipal water quality in Pomona directly influences pipe corrosion rates and home filtration needs. The high safety score (84/100) 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 Pomona
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Pomona.
Frequently Asked Questions
Is Pomona tap water safe to drink?
Mostly yes — Pomona scores 84/100.
How many water systems serve Pomona?
Pomona is served by 2 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Pomona?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Pomona.
What is the water quality score for Pomona?
The water quality score for Pomona is 84 out of 100, based on EPA contaminant data, violation history, and testing results across the 2 systems serving the city.
What are the top contaminants in Pomona?
The top contaminants detected in Pomona include Lead (90th percentile). View detailed information on our contaminants page.
Pomona Water Quality Summary
Pomona, CA receives a water quality score of 84/100 (Grade B) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 2 public water systems serving the area.
Pomona'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.
Pomona's score of 84 is 5 points below the California state average of 89, and above the nationwide average of roughly 78/100 across all U.S. states.
For residents and homebuyers in the mid-size city of Pomona, California, the local drinking supply delivers a solid level of quality that stands above average but still has room for optimization. Situated within a West Coast region shaped by vast urban centers, Central Valley agriculture, and diverse geological formations, the municipal tap reflects these varied environmental influences. Because utility services are split between different water systems within the city limits, prospective buyers should verify which specific provider serves a property to understand any localized treatment nuances.
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 Pomona (2)
Check Your Specific Address
Water quality can vary by neighborhood in Pomona.
Related
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Compare Pomona water quality: View all states · Contaminant library · How we score water quality