the dump is so close to the airfield and has been used for many many decades.  "Both PFOA and PFO'S  were used in a large variety of other things" from rug spray to food wrapper's, so perhaps the dump may be part of the problem.
This begs the problem, how does this issue effect the Whidbey Island property values and has anyone at all been diagnosed with a medical problem definitively directly connected to the issue?