MassDEP expects internal review of their draft drinking water regulations for 6 PFAS compounds to be completed by December 13 and for the draft regulations to be published for public comment on December 27. The public comment period has yet to be announced. The proposed drinking water limits are expected to align with the proposed groundwater cleanup standards under the Massachusetts Contingency Plan. The proposed groundwater cleanup standard is 20 parts per trillion (ppt) for the 6 compounds PFOS Perfluorooctanesulfonic acid, and PFOA Perfluoroocatanoic acid, PFNA (Perfluorononanoic acid), PFHxS (Perfluorohexanesulfonic acid) and PFHpA (Perfluoroheptanoic acid) and PFDA Perfluorodecanoic acid. MassDEP has been strongly encouraging public notifications for any source water testing for these compounds totaling more than 20 ppt at any one source, and use of alternative sources, or treatment or blending of sources. Alternative sources, including water system interconnections, must also be tested for PFAS compounds before use.