Sampling is targeted to areas that are vulnerable to ground water contamination. Information regarding the number of samples collected in each county can be found here . Problem identification monitoring is used to gather more information about the ground water near wells identified during baseline sampling as having significant pesticide detections. Problem identification monitoring has been conducted in Goshen, Park, and Laramie Counties. To date, no response monitoring has been conducted.
Pesticide use intensity ranking for Wyoming counties.
Focal pesticides, Wyoming ground-water quality standards, and summary of detections by county. In 1996, problem identification wells were selected to further study the characteristics of the ground water near four baseline monitoring wells in Goshen County. The following table lists all counties where baseline sampling has been conducted. Big Horn 15 August 1999, April 2000 Sheridan 15 August 1999, April 2000 Results of Sampling in Goshen, Park, Washakie, Fremont, Lincoln, and Laramie Counties Pesticides were detected in the ground water of the six counties where baseline monitoring has been completed. At least one pesticide, although primarily at a trace quantity, was detected in about 65 percent of the wells sampled.