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National Drinking Water Database

Copper in New York

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 New York

274 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
1Scio Water District
Scio, NY
1,0392 of 22317.5 ppb
(75 to 4560 ppb)
2Country Crossing
Pearl River, NY
2171 of 12300 ppb
(2300 ppb)
3Ledgeview Village M.H.P.
Lake George, NY
771 of 11610 ppb
(1610 ppb)
4West Winfield Village
West Winfield, NY
9781 of 11420 ppb
(1420 ppb)
5Albion Village
Albion, NY
6,0001 of 11300 ppb
(1300 ppb)
6Arcade Village
Arcade, NY
2,0521 of 11100 ppb
(1100 ppb)
7South Cross Road Water Co Inc
Hyde Park, NY
5721 of 11040 ppb
(1040 ppb)
8Holley Village
Holley, NY
2,1503 of 3996.67 ppb
(580 to 1530 ppb)
9Potsdam Village
Potsdam, NY
9,6252 of 2949.5 ppb
(39 to 1860 ppb)
10Loomis Wd
Liberty, NY
2001 of 1916 ppb
(916 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 New York

Data from the U.S. Environmental Protection Agency includes the following violations of federal standards in New York since 2004

Violation TypeNumber of Violations
State Assigned Maximum Permissible Level Non-Compliance46
Failure to notify public of violation1