On Friday, MassDEP proposed a number of revisions to the Massachusetts Contingency Plan, including reporting and cleanup standards for PFAS. 
The proposed GW-1 standard, applicable to current and potential drinking water source areas, would be 20 parts per trillion for the sum of six PFAS compounds (PFDA, PFHpA, PFHxS, PFOA, PFOS, and PFNA) – significantly more stringent than the 70 ppt guideline for the sum of five PFAS compounds currently in effect.… More
Tag Archives: PFAS
Just In Case You Wondered Whether PFAS Are Really a Big Deal
If you were thinking that PFAS were important, 
but you’ve been unsure just how big a deal they are, you need look no further than the Statewide PFAS Directive issued by the New Jersey Department of Environmental Protection. Some of my colleagues in New Jersey may correct me, but I think that the Directive may be the most wide-ranging order I’ve ever seen issued by an environmental agency. … More
PFAS Concerns – Real Hazard or Just Outrage?
Concern about the impacts of Poly- and Perflouroalkyl Substances is extensive and growing. 
Without seeking to downplay the potential risks from PFAS exposure, I do think that the way we are addressing PFAS demonstrates everything that’s wrong about how we talk about, assess, and respond to environmental risk in the United States.
Exhibit 1 for my view is Senator John Barrasso, the Republican chair of the Senate Committee on Environment and Public Works. … More