As part of its PFAS Action Plan , the U.S. Environmental Protection Agency yesterday released draft interim guidance on screening and preliminary remediation for perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) contaminated sites. The release begins a 45-day comment period that will end June 10. AWWA will be preparing comments. The draft recommendations are designed to assist regulators in evaluating and addressing contamination under federal cleanup programs, including the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA or Superfund) and corrective action under the Resource Conservation and Recovery Act (RCRA). Under the draft interim guidance, the proposed screening level is 40 ng/L. The proposed preliminary remediation goal (PRG), when groundwater is a current or potential source of drinking water, is 70 ng/L for the chemicals individually or cumulatively. The 2016 EPA drinking water health advisory is also 70 ng/L for either compound or the sum of the two. Both the screening level and PRG are lower than the Department of Defense and other experts had anticipated based on typical EPA risk assessment practice. These proposed values do not supersede state or tribal applicable or relevant and appropriate requirements (ARARs), e.g., state-specific maximum contaminant levels or groundwater clean-up levels. Currently, New Jersey and Minnesota have adopted lower clean-up standards for PFOA and PFOS. California, Connecticut and Vermont have adopted drinking water guidance that would serve as more stringent ARARs. While this action focuses specifically on PFOA and PFOS, there is currently legislation being actively considered by Congress that would require EPA to consider all “per- and poly-fluoroalkyl substances” (PFAS) to be hazardous substances. Utilities contacted by media or customers may find the following resources helpful: • EPA press release on draft interim recommendations • EPA’s PFAS Management Plan website • DrinkTap.org PFAS consumer info • WRF PFAS Background Technical Information • ITRC’s PFAS Fact Sheets • GAO Summary of DOD Efforts to Address PFAS in Aqueous Fire Fighting Foam Questions can be directed to Steve Via , AWWA’s director of federal relations.