Oro Valley
Is Oro Valley tap water safe to drink?
Mostly yes — Oro Valley scores 82/100. This report aggregates EPA drinking water data across 2 local systems in Oro Valley. We found 2334 total violations (55 unresolved).
Real-Time Environment
Live: 11:45 AM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Oro Valley.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Oro Valley?
Expert Advice
Given the safety margin, a Carbon Block or sediment filter is recommended to improve taste and remove trace particulates.
Buying a Filter?
Filter requirements and certified reduction benchmarks for Oro Valley tap water.
Baby Formula Safety
Infant formula preparation risks, nitrate levels, and lead pipe guidance in Oro Valley.
Homebuyer's Perspective
Evaluating water infrastructure in Oro Valley protects plumbing and helps estimate water heater longevity. The high safety score (82/100) 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 Oro Valley
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Oro Valley.
Frequently Asked Questions
Is Oro Valley tap water safe to drink?
Mostly yes — Oro Valley scores 82/100.
How many water systems serve Oro Valley?
Oro Valley is served by 2 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Oro Valley?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Oro Valley.
What is the water quality score for Oro Valley?
The water quality score for Oro Valley is 82 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 Oro Valley?
The top contaminants detected in Oro Valley include Lead (90th percentile). View detailed information on our contaminants page.
Oro Valley Water Quality Summary
Oro Valley, AZ receives a water quality score of 82/100 (Grade B) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 2 public water systems serving the area.
Oro Valley'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.
Oro Valley's score of 82 is 27 points above the Arizona state average of 55, and above the nationwide average of roughly 78/100 across all U.S. states.
Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our Arizona water quality rankings report →
Key Contaminants
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Water Systems Serving Oro Valley (2)
Check Your Specific Address
Water quality can vary by neighborhood in Oro Valley.
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