“Since the 2016 revelation that groundwater in Fountain Valley, which provided drinking water for Security-Widefield and Fountain, was contaminated with toxic per- and polyfluoroalkyl substances (PFAS), which include a number of individual chemicals such as PFOS, PFOA, PFHxS and PFHpA, government agencies, residents and community activists have been struggling to come to terms with what is arguably one of the largest ecological contaminations in Colorado’s history.
While the Air Force reported PFOS and PFOA levels below the EPA advisory limits, Rosenbaum says that doesn’t tell the whole story. ”There’s 4,700 different types [of PFAS],” she says, “PFHxS is toxic firefighting foam, which may or may not have PFOA, which is Teflon, or PFAS, which is Scotchgard water-repellent. So when the Air Force Academy said ‘we’re below levels of PFOA and PFAS,’ all of us activists who have been doing this for four years were like, ‘duh.’ You don’t have a Teflon pan company. You don’t have a Scotchgard water-proofing company. You have toxic firefighting foam, so here, Public Employees for Environmental Responsibility [PEER] did a FOIA [Freedom of Information Act request] to try to get the PFHxS levels, and they are really high.””