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National Drinking Water Database

Copper in Arizona

Copper is a naturally occuring metal and drinking water contaminant that enters tap water by corrosion of household plumbing systems and erosion of natural deposits. [read more]

The Most Polluted Communities in Arizona

484 water utilities reported detecting Copper in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Copper level

RankSystem Population Served Positive test results of total reported tests Average Level
1Jackson Acres Water Co
Prescott, AZ
482 of 21710.83 ppb
(675 to 2746.67 ppb)
2Sierra Court Trailer Park
Tucson, AZ
1202 of 21194.95 ppb
(89.9 to 2300 ppb)
3Yarnell Water Improvement Assn
Yarnell, AZ
1,6001 of 2750 ppb
(0 to 1500 ppb)
4Valle Verde Water Co
Nogales, AZ
2,3942 of 2600.19 ppb
(589.21 to 611.17 ppb)
5Graham County Utilities
Pima, AZ
2535 of 5546.9 ppb
(58.5 to 1500 ppb)
6Rio Lindo
Bakersfield, AZ
624 of 4531.25 ppb
(130 to 1100 ppb)
7AZ American Water - Anthem Water System
Phoenix, AZ
3,0003 of 3528.83 ppb
(507.5 to 548 ppb)
8Yavapai Country Club Water
Yarnell, AZ
255 of 5504.35 ppb
(61.75 to 1400 ppb)
9City of Page
Page, AZ
9,75023 of 33495.91 ppb
(0 to 1700 ppb)
10Solitude Trails Dwid
Pine, AZ
421 of 2477 ppb
(0 to 954 ppb)

Health Based Limits for Copper

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.300 ppb
National Secondary Drinking Water RegulationsA National Secondary Drinking Water Regulation is a non-enforceable guideline regarding contaminants that may cause cosmetic effects (such as taste, odor, or color). Some states choose to adopt them as enforceable standards. Source: U.S. Environmental Protection Agency. 1000 ppb
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.1300 ppb
EPA Human Health Water Quality CriteriaWater quality criteria set by the US EPA provide guidance for states and tribes authorized to establish water quality standards under the Clean Water Act (CWA) to protect human health. These are non-enforceable standards based upon exposure by both drinking water and the contribution of water contamination to other consumed foods. Source: U.S. Environmental Protection Agency.1300 ppb

Violation Summary for Copper in Arizona

There are no violations reported for this contaminant in Arizona