Tempe
Is Tempe tap water safe to drink?
Mostly yes — Tempe scores 91/100. This report aggregates EPA drinking water data across 2 local systems in Tempe. We found 601 total violations (58 unresolved).
Real-Time Environment
Live: 03:15 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Tempe.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Tempe?
Expert Advice
Your water quality is excellent. Standard filtration is optional but can further enhance taste.
Buying a Filter?
Filter or no filter for Tempe water? Here's what the data says.
Baby Formula Safety
What new parents in Tempe should know about tap water safety.
Homebuyer's Perspective
Water quality is easy to overlook when evaluating a move to Tempe, but it can affect plumbing longevity and appliance lifespan. The high safety score (91/100) 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 Tempe
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Tempe.
Frequently Asked Questions
Is Tempe tap water safe to drink?
Mostly yes — Tempe scores 91/100.
How many water systems serve Tempe?
Tempe is served by 2 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Tempe?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Tempe.
What is the water quality score for Tempe?
The water quality score for Tempe is 91 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 Tempe?
The top contaminants detected in Tempe include Lead (90th percentile). View detailed information on our contaminants page.
Tempe Water Quality Summary
Tempe, AZ receives a water quality score of 91/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 2 public water systems serving the area.
Tempe'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.
Tempe's score of 91 is 36 points above the Arizona state average of 55, and above the nationwide average of roughly 78/100 across all U.S. states.
For home seekers looking at Tempe, Arizona, this mid-size city in the arid Desert Southwest offers reassuringly strong municipal water performance despite the pressures facing fast-growing urban centers in the region. The community's dual water systems rely heavily on groundwater, which is managed effectively to deliver clean tap water. This high-tier compliance record means residents can feel confident about the safety of their local supply, even with the natural scarcity constraints of the surrounding desert.
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 Tempe (2)
Check Your Specific Address
Water quality can vary by neighborhood in Tempe.
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