Soil Science Society of America (SSSA)

USGS report `contaminants in groundwater used for public supply` released


The US Geological Survey (USGS) a unit of the Interior Department, has released a study of untreated water samples from 932 public wells across the nation.  Findings showed that naturally occurring contaminants, such as radon and arsenic, accounted for about three-quarters of contaminant concentrations greater than human-health benchmarks. Man-made contaminants were also found including herbicides, insecticides, solvents, disinfection by-products, nitrate, and gasoline chemicals. Man-made contaminants accounted for about one-quarter of contaminant concentrations greater than human-health benchmarks, but were detected in 64 percent of the samples, predominantly in samples from unconfined aquifer. The May 21, 2010 NAWQA Full report is postedat

Customer comments

  1. By Patrick Halliday on

    This report is an example of why we need a solution for clean pure drinking water. I found mine at