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National Drinking Water Database

Lead (total) in Arizona

Lead is a metal that enters water by corrosion of household plumbing systems, discharge of industrial pollution and erosion of natural deposits. [read more]

The Most Polluted Communities in Arizona

380 water utilities reported detecting Lead (total) in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Lead (total) level

RankSystem Population Served Positive test results of total reported tests Average Level
1Stratman Water Company
Tucson, AZ
762 of 243.22 ppb
(3.43 to 83 ppb)
2Adoc-Correction Training
Phoenix, AZ
3,7001 of 223.5 ppb
(0 to 47 ppb)
3EL Prado Water Company
Yuma, AZ
3001 of 122.38 ppb
(22.38 ppb)
4Whispering Wind Mhp
Mesa, AZ
2061 of 118.72 ppb
(18.72 ppb)
5AZ Water Co-Rimrock
Phoenix, AZ
3,0851 of 118 ppb
(18 ppb)
6Adoc-Eyman Unit
Phoenix, AZ
4,8001 of 117.5 ppb
(17.5 ppb)
7Flowing Wells Irrigation
Tucson, AZ
15,5001 of 117.2 ppb
(17.2 ppb)
8AZ Water Co-Stanfield
Phoenix, AZ
7382 of 215.75 ppb
(6.5 to 25 ppb)
9Inscription Canyon Ranch System
Prescott, AZ
1001 of 115.67 ppb
(15.67 ppb)
10Town & Country Mhp
Tucson, AZ
8001 of 114.86 ppb
(14.86 ppb)

Health Based Limits for Lead (total)

Maximum Contaminant Limit Goal (MCLG)A non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.0 ppb
California Public Health GoalsDefined by the State of California Office of Environmental Health Hazard Assessment (OEHHA) as the level of contaminant that is allowed in drinking water. For acutely toxic substances, levels are set at which scientific evidence indicates that no known or anticipated adverse effects on health will occur, plus an adequate margin-of safety. PHGs for carcinogens or other substances which can cause chronic disease shall be based solely on health effects without regard to cost impacts and shall be set at levels which OEHHA has determined do not pose any significant risk to health.0.2 ppb

Violation Summary for Lead (total) in Arizona

There are no violations reported for this contaminant in Arizona