PFAS Information This page is to inform the public on the basics surrounding PFAS compounds and their potential for contamination. AttachmentSize Introduction to Per- and polyfluoroalkyl substances (PFAS)446.42 KB The PFAS Regulatory flowchart1.18 MB The PFAS Lifecycle277.95 KB Representation of a Part-Per-Trillion (ppt) 307.16 KB Common Items that contain PFAS194.4 KB MassDEP MCL Notice243.28 KB MassDEP PFAS Free Analysis Program Final Report December 20236.48 MB pfas_standard_changes_4-9-24.docx27.86 KB pfas-npdwr_fact-sheet_general_4.9.24v1.pdf162.73 KB pfas-npdwr_fact-sheet_hazard-index_4.8.24.pdf210.87 KB