I was stationed near Fairbanks AK in 1969 and remember as a GI using TCE to clean my Hodaka Super Rat chain and dumping the goop out back of the shop. Then I got stationed in Tucson, AZ and learned about the massive issue with TCE dumped at Davis Monthan AFB polluting the ground water. Today they are still fighting PFAS concentrations and shutting down Tucson water wells. We educate the public slowly.