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National Drinking Water Database

Copper in Maine

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 Maine

362 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
1Pine Spring Roads & Water.
Eliot, ME
13412 of 131298.21 ppb
(0 to 4200 ppb)
2Bridgetwin, Llc
Ellsworth, ME
633 of 3699 ppb
(8 to 2074 ppb)
3Lakehurst Acres
Augusta, ME
933 of 3456.8 ppb
(35 to 1195.4 ppb)
4Limerick Mobile Home Park
Limerick, ME
2751 of 1440 ppb
(440 ppb)
5Island Falls Water Dept.
Island Falls, ME
57015 of 15366.58 ppb
(16 to 990 ppb)
6Rosewood Estates
Fort Kent, ME
401 of 1340 ppb
(340 ppb)
7Grand Isle Water System
Grand Isle, ME
2881 of 1330 ppb
(330 ppb)
8Keywood Manor Mobile Village
Alfred, ME
4402 of 3283.64 ppb
(0 to 850 ppb)
9Ashland Water & Sewer District
Ashland, ME
8082 of 2278 ppb
(66 to 490 ppb)
10Oakwood Homeowners Assoc
Alfred, ME
1903 of 3253.88 ppb
(63.35 to 572.44 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 Maine

There are no violations reported for this contaminant in Maine