What are the next steps in U.S. EPAs regulatory process for perchlorate?
EPA’s 24.5 ppb Reference Dose (the maximum dose without any risk, abbreviated RfD) RFD may be used by officials throughout the agency to make site-specific cleanup or interim drinking water standard decisions involving perchlorate. States and private parties also may look to EPA’s RfD and Drinking Water Equivalent Level (DWEL) as they make similar decisions.