A Guide for the Pesticide User Common Pesticides in Groundwater Common Pesticides in Groundwater Aldicarb has also been found in the groundwater of many other states. Fifty other pesticides also have been found in groundwater.
More pesticides are likely to be found as our testing of groundwater increases.
The pesticides on the slide depict some of those found to date. In many places pesticides have been used quite safely, however.