EPA Proposes Perchlorate MCL But Weighs Withdrawing Determination

摘要

EPA is proposing a long-awaited health protective goal and drinking water standard for perchlorate of 56 micrograms per liter (ug/L) but is asking the public to comment on a variety of options including setting levels more and less stringent or not regulating the chemical at all in drinking water, given new information on occurrence levels.