Tucson
Is Tucson tap water safe to drink?
Generally acceptable, but review local hotspots — score 67/100. This report aggregates EPA drinking water data across 1 local system in Tucson. We found 0 total violations (0 unresolved).
Real-Time Environment
Live: 04:30 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Tucson.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Tucson?
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 or no filter for Tucson water? Here's what the data says.
Baby Formula Safety
What new parents in Tucson should know about tap water safety.
Homebuyer's Perspective
Water quality is easy to overlook when evaluating a move to Tucson, but it can affect plumbing longevity and appliance lifespan. With a score of 67/100, we recommend budgeting for high-quality point-of-entry filtration systems to protect your home's value.
Health & Family Safety
Residents should monitor Copper levels. Pregnant women and families with young children should consult the specific EPA health goals listed below.
View Health Risk Glossary →Compliance Record for Tucson
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Tucson.
Frequently Asked Questions
Is Tucson tap water safe to drink?
Generally acceptable, but review local hotspots — score 67/100.
How many water systems serve Tucson?
Tucson is served by 1 public water system in our latest EPA-backed dataset.
How can I check water quality for my exact address in Tucson?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Tucson.
What is the water quality score for Tucson?
The water quality score for Tucson is 67 out of 100, based on EPA contaminant data, violation history, and testing results for all serving water systems.
What are the top contaminants in Tucson?
The top contaminants detected in Tucson include Copper, Total Trihalomethanes, Radium-228. View detailed information on our contaminants page.
Tucson Water Quality Summary
Tucson, AZ receives a water quality score of 67/100 (Grade C) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 28 public water systems serving the area.
Tucson's water quality is near the national average. While most systems meet EPA standards, some violations have been recorded. Residents may wish to review their specific water system's report for contaminant details.
Tucson's score of 67 is 10 points above the Arizona state average of 57, and below the nationwide average of roughly 78/100 across all U.S. states.
As a large city situated in the arid Desert Southwest of Arizona, Tucson operates as a fast-growing urban center that is groundwater-dependent. Because the area is served by more than two dozen distinct water systems, quality can vary depending on a resident's specific location. For prospective homebuyers, the city's fair overall rating suggests checking the details of whichever local system serves a potential property.
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 Tucson (1)
Check Your Specific Address
Water quality can vary by neighborhood in Tucson.
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