EPA Says SDWA Gives Broad Power For Reversing Perchlorate Determination

EPA is pushing back on environmentalists’ efforts to overturn the agency’s decision to forgo setting a drinking water standard for perchlorate, telling a federal appeals court that nothing in the Safe Drinking Water Act (SDWA) prevents EPA from changing a preliminary decision and that its decision in this case was neither arbitrary nor capricious. The 2020 withdrawal of the agency’s 2011 determination to regulate perchlorate “was within EPA’s well-established authority to change course when a new look at the best...