https://covertactionmagazine.com/2021/07/05/deadly-june-10th-spill-of-toxins-from-u-s-military-base-in-okinawa-could-sicken-and-kill-thousands/
"The Okinawa Defense Bureau said the toxic materials flowed out of the base due to heavy rain. The concentration of PFAS in the release is unknown and the Army is not forthcoming. The spill is believed to have emptied into the Tengan River and the sea.
During past investigations conducted by the prefecture, the Tengan River has been found to have high concentrations of PFAS. Poisonous releases of toxic chemicals by the U.S. military are commonplace in Okinawa."