Arizona
Water Quality Report
92 Excellent
Average Score
92/100
Water Systems
1,900
Population
7.3M
Violations
2 2 unresolved
Score Distribution
3 A
1 B
0 C
1 D
0 F
Top Contaminant Violations
| Contaminant | Violations |
|---|---|
| Nitrate | 1 |
| Chromium (Total) | 1 |
| Radium-226 | 1 |
Lowest Scoring Water Systems
37
City of Scottsdale Water D
AZ0410025 Scottsdale, AZ 241,361 served
81
Salt River Project Water Services B
AZ0410002 Phoenix, AZ 800,000 served
100
City of Phoenix Water Services A
AZ0410001 Phoenix, AZ 1,626,078 served
100
Tucson Water A
AZ1010001 Tucson, AZ 548,073 served
100
City of Mesa Water A
AZ0410080 Mesa, AZ 508,958 served