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National Drinking Water Database

Copper in Alaska

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 Alaska

53 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
1Sand Point Water System
Sand Point, AK
1,1321 of 11040 ppb
(1040 ppb)
2Anchor Point Watering Point
Anchor Point, AK
3481 of 1763 ppb
(763 ppb)
3North Pole Utilities
North Pole, AK
1,77010 of 10719.2 ppb
(148 to 1670 ppb)
4Holy Cross Water System
Holy Cross, AK
2901 of 1571.5 ppb
(571.5 ppb)
5Deering Utility System
Deering, AK
1501 of 1435 ppb
(435 ppb)
6Savoonga Water Supply System
Savoonga, AK
6562 of 2342.5 ppb
(198 to 487 ppb)
7Lower Kalskag Water System
Lower Kalskag, AK
3022 of 2247.95 ppb
(35.1 to 460.8 ppb)
8Faa Bethel Well
Fairbanks, AK
471 of 1185 ppb
(185 ppb)
9Hooper Bay Old Town Site #1
Hooper Bay, AK
9961 of 1168 ppb
(168 ppb)
10Kotlik Water System
Kotlik, AK
5911 of 1133 ppb
(133 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 Alaska

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

Violation TypeNumber of Violations
Failure to monitor regularly4
Failure to notify public of violation1