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Home » Water Resources and Environment » Groundwater Resources » Groundwater Arsenic Contamination » Arsenicin Ground Water Arsenicin Ground Water in Quality Water Services Directory |
Arsenic in Ground Water of the United States Publications, maps, and data on arsenic in U.S. groundwater. Links to other arsenic resources. Arsenic in Ground Water of the United States Publications, maps, and data on arsenic in U.S. groundwater. Links to other arsenic resources. Arsenic in ground water is largely the result of minerals dissolving from weathered rocks and soils. Several types of cancer have been linked to arsenic in water. In 2001 the US Environmental Protection Agency lowered the maximum level of arsenic permitted in drinking water from 50 micrograms per liter The USGS has developed maps that show where and to what extent arsenic occurs in ground water across the country. The current maps are based on samples from 31,350 wells. Widespread high concentrations were found in the West, the Midwest, and the Northeast.
Website: http://water.usgs.gov/nawqa/trace/arsenic/