Oxnard
Is Oxnard tap water safe to drink?
Mostly yes — Oxnard scores 92/100. This report aggregates EPA drinking water data across 6 local systems in Oxnard. We found 58 total violations (22 unresolved).
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Oxnard?
Expert Advice
Your water quality is excellent. Standard filtration is optional but can further enhance taste.
Buying a Filter?
Wondering if Oxnard tap water needs filtering? We break it down.
Baby Formula Safety
Mixing baby formula with Oxnard tap water? Read this first.
Homebuyer's Perspective
If you're house-hunting in Oxnard, water quality belongs on your due-diligence checklist alongside schools and crime data. The high safety score (92/100) 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 Oxnard
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Oxnard.
Frequently Asked Questions
Is Oxnard tap water safe to drink?
Mostly yes — Oxnard scores 92/100.
How many water systems serve Oxnard?
Oxnard is served by 6 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Oxnard?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Oxnard.
What is the water quality score for Oxnard?
The water quality score for Oxnard is 92 out of 100, based on EPA contaminant data, violation history, and testing results across the 6 systems serving the city.
What are the top contaminants in Oxnard?
The top contaminants detected in Oxnard include Lead (90th percentile). View detailed information on our contaminants page.
Oxnard Water Quality Summary
Oxnard, CA receives a water quality score of 92/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 6 public water systems serving the area.
Oxnard'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.
Oxnard's score of 92 is 3 points above the California state average of 89, and above the nationwide average of roughly 78/100 across all U.S. states.
For residents and prospective homebuyers in Oxnard, California, the tap water delivers excellent overall performance across the mid-size city's multiple local water systems. This high level of quality is particularly reassuring given the complex West Coast regional environment, which is shaped by nearby large urban centers, Central Valley agriculture, and a varied geological landscape. While these regional factors can influence source water characteristics, the city's systems keep tap water safely within top-tier standards. Consequently, moving to this community means enjoying clean water, though the exact source and mineral composition may differ depending on which of the active distribution systems services your specific property.
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 Oxnard (6)
Vineyard Ave Estates Mwc
AGarden Acres Mutual Water Co
AChannel Islands Beach Csd
AOxnard Water Dept
ARio Mesa High School/Oxnard Uhs
BVineyard Avenue Acres Mwc
BCheck Your Specific Address
Water quality can vary by neighborhood in Oxnard.
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