Arsenic is prevalent in many areas throughout the US....
Arsenic is a naturally occurring element in rocks, soils, and the waters in contact with them. Recognized as a toxic element for centuries, arsenic today also is a human health concern because it can contribute to skin, bladder, and other cancers (National Research Council, 1999). Recently, the National Research Council (1999) recommended lowering the current maximum contaminant level (MCL) allowed for arsenic in drinking water of 50 µg/L (micrograms per liter), citing risks for developing bladder and other cancers.
The USGS provides a wide range of information regarding arsenic found in drinking water...
The USGS has developed maps that show where and to what extent arsenic occurs in ground water across the country. The USGS current maps are based on samples from 31,350 wells scattered across the country. Widespread high concentrations were found in the Northeast, the Midwest, and the Western US.
The US Environmental Protection Agency lowered the maximum level of arsenic permitted in drinking water in 2001... Current regulations: 50 micrograms per liter (ug/L) to 10 ug/L
This fact sheet provides information on where and to what extent natural concentrations of arsenic in ground water exceed possible new standards.
Find Out If Arsenic Is Prevalent In Your Area -
See The Map