a day of milk. >> the milk is contaminated according to fda tests and his milk license suspended. cows lie dead from old age on his farm because no one will buy their beef. >> we have no income for our family. it's been devastating. >> reporter: fire fighting foam used in training exercises at a nearby military base contaminated the ground water on his property. pfas contamination sites are everywhere, 712 locations in 49 states have been discovered according to the environmental working group, an activist non-profit. manufacturers like 3m and dupont have stopped making two of the chemicals in the plant but they're still shipped in on products overseas. they're so prevalent cdc scientists believe pfas chemicals are in the blood streams of nearly all americans. despite all that, the chemicals