National Water-Quality Assessment (NAWQA) Program

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General Information

Water Quality of Potential Concern in US Private Wells

More than 20 percent (shown in red) of more than 2,100 private domestic wells sampled nationwide contain at least one contaminant at levels of potential health concern. About 43 million people - or 15 percent of the Nationís population - use drinking water from private wells.

The full study can be accessed at: http://water.usgs.gov/nawqa/studies/domestic_wells

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URL: http://water.usgs.gov/nawqa/home_maps/domestic_wells.html
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Page Last Modified: Tuesday, 04-Mar-2014 14:43:56 EST