April 21, 2022 Version. Content submitted by Rick Kersbergen, Extension Professor University of Maine Cooperative Extension, Sustainable Dairy and Forage Systems (richard.kersbergen@maine.edu); This guide was created and will be updated by the Maine PFAS Cohort, made up of representatives from Northern Tilth, LLC, Maine Dept. of Agriculture, Conservation and Forestry, Maine Cooperative Extension, Winslow Agricultural,