The Pennsylvania Environmental Quality Board published proposed MCLs for PFOA and PFOS. Public hearings will be held later this month.
The proposed MCLs are:
PFOA – 14 ng/L
PFOS – 18 ng/L
Link to a copy of the Pennsylvania Bulletin (https://wqts.com/wp-content/uploads/2022/03/Pennsylvania-Bulletin_Proposed-PFAS-MCLs_2022-02-26.pdf). The proposed PFAS MCLs section begins on page 1245 (the proposal includes an extensive discussion on occurrence data, health effects information, and costs as background to the proposed MCLs).