UCMR 5
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EPA Drops First Set of UCMR 5 Data
U.S. EPA released the first set of data collected by public water systems (PWS) pursuant to the Fifth Unregulated Contaminant Monitoring Rule (UCMR 5). UCMR 5 required PWS serving more than 10,000 customers to sample for 29 specific per- and polyfluoroalkyl substances (PFAS), including perfluorooctanoic acid (PFOA), perfluorooctane sulfonic acid (PFOS), and hexafluoropropylene oxide dimer Continue reading