Arizona
Water Quality Report
55 Fair
Average Score
55/100
Water Systems
331
Population
4.9M
Violations
1080 142 unresolved
Score Distribution
47 A
50 B
36 C
19 D
69 F
Top Contaminant Violations
| Contaminant | Violations |
|---|---|
| Copper (90th percentile) | 3 |
| Lead (90th percentile) | 2 |
Lowest Scoring Water Systems
0
City Of Show Low F
AZ0409026 Show Low, AZ 17,139 served
0
Valle Verde Water Company - East F
AZ0412009 Tucson, AZ 2,331 served
0
Adoc Eyman Unit F
AZ0411705 Phoenix, AZ 3,969 served
0
Safford City Of F
AZ0405005 Safford, AZ 20,600 served
0
Grand Canyon National Park F
AZ0403702 Grand Canyon, AZ 16,590 served
Counties in Arizona
Cities in Arizona
View all 121 cities →Popular City Comparisons in Arizona
Quickly compare major cities in Arizona by water quality score and grade.
Frequently Asked Questions
Is tap water in Arizona safe to drink?
Arizona has an average WaterQ score of 55/100 across 331 public water systems. Safety can vary by city and system, so check your local report for recent violations and contaminants.
How many water systems are in Arizona?
WaterQ currently tracks 331 public water systems in Arizona.
Where can I compare cities in Arizona?
Use the city list below to open detailed reports, or visit the compare tool to benchmark two cities side-by-side on score, grade, and system coverage.