How frequently were contaminants present in the sampled domestic wells at levels greater than human-health benchmarks?
One or more contaminants were present at concentrations greater than human-health benchmarks (MCLs or HBSLs) in 23 percent of the sampled domestic wells. The contaminants included in this finding included trace elements, nitrate, fluoride, radon (at concentrations greater than the higher of two proposed MCLs), pesticides, and volatile organic compounds. These results do not include microbial contaminants, which were measured for only about 400 wells.
Related Questions
- Where is more information available about the potential health effects associated with the contaminants found in the sampled domestic wells?
- How frequently were contaminants present in the sampled domestic wells at levels greater than human-health benchmarks?
- What contaminants were present at levels greater than human-health benchmarks?
