Phoenix
Is Phoenix tap water safe to drink?
Generally acceptable, but review local hotspots — score 66/100. This report aggregates EPA drinking water data across 28 local systems in Phoenix. We found 5402 total violations (394 unresolved).
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Phoenix?
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 Phoenix water? Here's what the data says.
Baby Formula Safety
What new parents in Phoenix should know about tap water safety.
Homebuyer's Perspective
Water quality is easy to overlook when evaluating a move to Phoenix, but it can affect plumbing longevity and appliance lifespan. With a score of 66/100, we recommend budgeting for high-quality point-of-entry filtration systems to protect your home's value.
Health & Family Safety
Residents should monitor Copper (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 Phoenix
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Phoenix.
Frequently Asked Questions
Is Phoenix tap water safe to drink?
Generally acceptable, but review local hotspots — score 66/100.
How many water systems serve Phoenix?
Phoenix is served by 28 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Phoenix?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Phoenix.
What is the water quality score for Phoenix?
The water quality score for Phoenix is 66 out of 100, based on EPA contaminant data, violation history, and testing results across the 28 systems serving the city.
What are the top contaminants in Phoenix?
The top contaminants detected in Phoenix include Copper (90th percentile), Lead (90th percentile). View detailed information on our contaminants page.
Phoenix Water Quality Summary
Phoenix, AZ receives a water quality score of 66/100 (Grade C) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 28 public water systems serving the area.
Phoenix'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.
Phoenix's score of 66 is 11 points above the Arizona state average of 55, and below the nationwide average of roughly 78/100 across all U.S. states.
For residents and homebuyers navigating this major metro area in the arid Desert Southwest, the regional reliance on groundwater presents unique drinking water challenges. Managing quality across the numerous distinct water systems serving this fast-growing urban center results in overall moderate ratings, indicating that water standards can vary depending on where you settle. Because subterranean aquifers supply a significant portion of the area's tap water, anyone moving to Phoenix should investigate the specific utility serving their neighborhood to understand local treatment practices.
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 Phoenix (28)
Adoc Eyman Unit
FFederal Correction Institution
FArizona Water Co - Ajo
AArizona Water Co - Lakeside
AArizona Water Co - Overgaard
AArizona Water Co - Pinetop Lakes
AArizona Water Co - Pinal Valley
BArizona Water Co - Oracle
AArizona Water Co - Superior
FArizona Water Co - Apache Junction
AArizona Water Co - White Tanks
AAwc - Valley Vista
AArizona Water Co - Rimrock
BArizona Water Co - Tierra Grande
BArizona Water Co - Pinewood
AArizona Water Co - Sedona
CArizona Water Co - San Manuel
BArizona Water Co - Miami Claypool
BArizona Water Co - Bisbee
CArizona Water Co - Sierra Vista
BMorenci Water Elec Co Main
FBrophy College Preparatory
BGlendale City Of
FPima Utilities
FCarl T Hayden Veterans Medical Center
ASheraton Phoenix Downtown
FAdoc Florence Asp
FOak Crest Of Manvel
ACheck Your Specific Address
Water quality can vary by neighborhood in Phoenix.
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Compare Phoenix water quality: View all states · Contaminant library · How we score water quality