>Rainwater does not contain PFAS/PFOS.

Yes it does. -- Source 1, Source 2

"found across the globe, including in rainwater, snow, soil, and even human blood."

Our rainwater has these same forever chemicals. This spot isn't special, it's worldwide. Of course pollution levels vary and areas that were used as firefighting practice tend to be higher on the spectrum. What suggestions would you offer for something the military could do to help in current day? They cannot filter the water in underground aquifers. And they most certainly cannot go back in time knowing what we know now to never have used the chemicals to begin with.

You looked at a picture of a mountain and managed to be offended about a relationship of strangers. This says more about you than almost anything else ever could.