In June 1996, the U. S. Environmental Protection Agency (USEPA) proposed a regulation to require individual states to develop Pesticide Management Plans (PMPs) to protect their ground-water resources from pesticide contamination. The USEPA designated the predominantly agricultural pesticides atrazine, alachlor, cyanazine, metolachlor, and simazine as the first five that would require a PMP.
Please give proper credit to the Delaware Geological Survey.
Blaier, S.C and Baxter, S.J. , 2000, The Occurrence and Distribution of Several Agricultural Pesticides in Delaware’s Shallow Ground Water: Delaware Geological Survey Report of Investigation 61
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