(June 19, 2020, 9:56 AM EDT) -- WASHINGTON, D.C. — The U.S. Environmental Protection Agency on June 18 announced that it will not regulate perchlorate levels in drinking water because based on “the best available science and the proactive steps that EPA, states and public water systems have taken to reduce perchlorate levels,” it has determined that perchlorate does not meet the criteria for regulation as a drinking water contaminant under the Safe Drinking Water Act....