Joint Region Marianas says of the the water contamination crisis in Guam’s waterwells “The water is safe to drink” on all military bases, though they have yet to release the test results. In a Facebook post, JRM says “Water samples taken on September 25 from all active military wells and surface water sources on military installations across Guam were found to be under Guam EPA’s dieldrin interim action levels.”

It’s the first of four quarterly tests that are part of the Guam Environmental Protection Agency's dieldrin testing schedule.

In response, the governor tells KUAM News that JRM commander Rear Admiral Brett Mietus did not give her any other details other than their water is safe to drink, and that they are from water wells that the Government of Guam manages and administers.

It’s still unknown where the source of dieldrin came from as the pesticide has been banned since the 1980s. Although there’s been some speculation from the public that it may be linked to Andersen Air Force Base with elevated levels in Yigo, Governor Lou Leon Guerrero emphasizes that EPA is still investigating.

"It has not been used since 1987, so we are very puzzled as to why this is showing up again," said the governor. "So yes, the EPA is in the process of doing a study and investigation. People can make all sorts of speculation, but I think we just need to do the official and most scientific way to determine what was causing it. And see if we can minimize that cause."

In the meantime, JRM says they will notify GovGuam and the community if future test results exceed EPA’s interim action levels. There's been word yet on when those results will be released.