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PA DEP Announces Public Comment Period on New PFAS Drinking Water Regulation

PA DEP Announces Public Comment Period on New PFAS Drinking Water Regulation | Newtown News of Interest |

UPDATE (6/15/22): The EPA issued interim, updated drinking water health advisories for perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) that replace those EPA issued in 2016. The updated advisory levels, which are based on new science and consider lifetime exposure, indicate that some negative health effects may occur with concentrations of PFOA or PFOS in water that are near zero and below EPA’s ability to detect at this time. See press release.


The Pennsylvania Department of Environmental Protection (DEP) announced today a 60-day public comment period that begins Saturday, February 26, 2022, on a new regulation to protect Pennsylvanians’ drinking water from PFAS chemicals.

The comment period concerns a proposed rule to set maximum contaminant levels (MCLs) in drinking water for two forms of per- and poly-fluoroalkyl substances (PFAS) – perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) – to protect the public from potential adverse developmental and immune system effects linked to exposure to PFOA and PFOS. The comment period will begin Saturday, February 26, 2022, and close Wednesday, April 27, 2022.


“Since Governor Tom Wolf signed an executive order in 2018, DEP has worked tirelessly to protect Pennsylvanians from these chemicals. This public comment period allows stakeholders to share their feedback and concerns as we continue to put the safety and health of Pennsylvanians first,” said DEP Secretary Patrick McDonnell.


The proposed rule would set an MCL of 14 parts per trillion (ppt) for PFOA and an MCL of 18 ppt for PFOS, which are stricter limits compared to the United States Environmental Protection Agency’s lifetime Health Advisory Level (HAL) of 70 ppt for PFOS and PFOA combined.


More details...

johnmacknewtown's insight:

When the comment period opens, comments may be submitted to the Environmental Quality Board (EQB) through DEP’s eComment system at Comments may also be submitted via e-mail at Each comment must include a subject heading of the proposed rulemaking and the name and address of the person submitting the comment. Written comments may be mailed to the Environmental Quality Board, P.O. Box 8477, Harrisburg, PA 17105-8477.


Related Content:


  • “Pennsylvania’s Department of Environmental Protection Proposes Stricter Limits for PFAS in Drinking Water”;
  • “PA May/Should Join Other States in Setting Its Own Standards for Federally Unregulated PFAS”;
  • “Perfluorinated Compounds Detected in Newtown Township's Water Supply”;
  • “Guest Opinion: PFAS Crisis Calls for Nonpartisan Support of Setting Lower Maximum Contamination Levels”;



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