National Water-Quality Assessment (NAWQA) Program

While available, copies of this report can be obtained by contacting the Pennsylvania Water Science Center at (717) 730-6946 or by e-mail at jbricker@usgs.gov
Pesticide occurrence was related to land use and aquifer confinement. Samples from unconfined aquifers in agricultural, urban, or mixed land use areas account for the majority of the detections of atrazine and deethylatrazine. The illustration shown is based upon figure 34 of SIR 2008-5240.
