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MassDEP reports 173 PFAS sites under investigation; details on treatment, guidance and AFFF take‑back
Summary
MassDEP briefed advisory participants on PFAS response: 173 sites under investigation, roughly 30% with unknown sources; the department is operating ~50 point‑of‑entry treatment systems, supplying bottled water at additional sites, drafting PFAS guidance documents and continuing the AFFF foam take‑back program (157 participants, ~48,000 gallons).
John Ziegler, introduced in the meeting as MassDEP’s PFAS coordinator, told attendees the Bureau of Waste Site Cleanup is tracking 173 PFAS sites under investigation. "We have 173 PFAS sites ... under investigation," John said, adding that about 30% of those sites do not yet have an identified source and that source discovery is a top priority.
John described the department’s near-term response measures: DEP has installed roughly 50 point‑of‑entry (POE) treatment systems and is supplying bottled water to about 30 locations while POE systems are installed. "Currently, I think we…
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