Officials say the PFAS types found contaminating a well near Pellston Regional Airport match the profile of chemicals incorporated in firefighting foams that have sometimes been used at airfields. But, in the months leading up to those findings, faulty information circulating among state departments suggested the Pellston airport never used such firefighting foam. Officials say the supposed flub was probably just a mistake — not the result of any party trying to mislead the public or cover information up. News of the error came out during a town hall forum about the contamination on Wednesday, which followed a Feb. 7 announcement by the Health Department of Northwest Michigan that PFAs readings at “actionable” levels had been observed in water testing for a private well near the airport.