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National Drinking Water Database

Copper in Iowa

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 Iowa

1,067 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
1Gilbert Water Supply
Gilbert, IA
98743 of 431266.05 ppb
(100 to 3100 ppb)
2Greenwood Acres Water Co.
Ankeny, IA
32526 of 261216.88 ppb
(309.28 to 3130 ppb)
3Spring Green
Cedar Rapi, IA
521 of 3890 ppb
(0 to 2670 ppb)
4Slater Muni Water Dept
Slater, IA
1,3065 of 5853.91 ppb
(140 to 2121.4 ppb)
5Fonda Water Supply
Fonda, IA
67112 of 12820.51 ppb
(320 to 1506.67 ppb)
Kalona, IA
604 of 4819.82 ppb
(525.67 to 1290 ppb)
7Guthrie Center Muni Water Work
Guthrie Ce, IA
1,6688 of 8807.41 ppb
(419 to 1410 ppb)
8Hastings Water Supply
Omaha, IA
21424 of 24806.2 ppb
(6 to 1950 ppb)
9Fairfax Water Supply
Fairfax, IA
1,6622 of 2804.81 ppb
(703.13 to 906.5 ppb)
10DE Soto Water Supply
Desoto, IA
1,0096 of 6775.08 ppb
(390 to 1520 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 Iowa

There are no violations reported for this contaminant in Iowa