The Power of Information

National Drinking Water Database


Combined Uranium (pCi/L) in Arizona


Uranium is a radioactive element commonly found in most rocks; processed ore is used for power generation and weapons manufacture. [read more]

The Most Polluted Communities in Arizona

12 water utilities reported detecting Combined Uranium (pCi/L) in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Combined Uranium (pCi/L) level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Sherman Pines Water Co
Prescott, AZ
901 of 114.9 pCi/L
(14.9 pCi/L)
2Ponderosa Park Water Impr
Prescott, AZ
5001 of 113.6 pCi/L
(13.6 pCi/L)
3Silverbell West
Tucson, AZ
2642 of 29.2 pCi/L
(8.7 to 9.7 pCi/L)
4Vistancia Public Wtr Sys
AZ
7,6913 of 71.66 pCi/L
(0 to 5.2 pCi/L)
5City of Prescott
Prescott, AZ
40,2553 of 41.22 pCi/L
(0 to 1.8 pCi/L)
6City of Chandler
Chandler, AZ
180,00011 of 251.14 pCi/L
(0 to 5.68 pCi/L)
7Tucson Water
Tucson, AZ
675,0002 of 61.05 pCi/L
(0 to 3.7 pCi/L)
8City of Meza Utilities Department
Mesa, AZ
350,00013 of 300.85 pCi/L
(0 to 2.73 pCi/L)
9Tucson Water-Corona
Tucson, AZ
6,0001 of 40.65 pCi/L
(0 to 2.6 pCi/L)
10City of Scottsdale
Scottsdale, AZ
180,0003 of 150.64 pCi/L
(0 to 4.4 pCi/L)

Health Based Limits for Combined Uranium (pCi/L)

StandardDescriptionLevel
Maximum Contaminant Limit (MCL)The enforceable standard which defines the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to health-based limits (Maximum Contaminant Level Goals, or MCLGs) as feasible using the best available analytical and treatment technologies and taking cost into consideration. Source: U.S. Environmental Protection Agency.15 pCi/L

Violation Summary for Combined Uranium (pCi/L) in Arizona

There are no violations reported for this contaminant in Arizona