Indicator Profile of Arsenic in Private Wells
Why Is This Important?Arsenic is a naturally-occurring element in the earth's crust, and trace amounts can be found in geologic formations and aquifers in parts of New Jersey. Arsenic may also be found in soils as a result of past use of arsenic-containing pesticides and wood preservatives.
Arsenic has been classified by the U.S. Environmental Protection Agency (USEPA) as a known human carcinogen. Ingestion of large amounts of inorganic arsenic is associated with increased risk of several types of cancer, including skin, lung, liver, kidney and urinary bladder. Other potential effects of ingesting large amounts of arsenic include diarrhea, thickening and/or discoloration of the skin, diabetes, and heart disease.
Arsenic in Private Wells, Percent of Tested Wells Exceeding MCL, January 2007 to December 2011, by County
Data NotesData Source: Private Well Testing Act Program, New Jersey Department of Environmental Protection, Well Test Results for January 2007 - December 2011. Arsenic testing of private wells is required only in the counties shown. Testing began in Sussex and Warren counties beginning in March 2008.
DefinitionPercent of tested private wells with arsenic concentration exceeding the maximum contaminant level of 5 micrograms of arsenic per liter
How We Calculated the Rates
Page Content Updated On 10/22/13, Published on 10/22/13