Residents of the Marines’ Manana Housing Community in Pearl City are advised not to use the water after a recent sample found potential bacterial contamination.
Marine Corps Base Hawaiʻi issued a “do not use” advisory to its residents at Manana on Thursday.
Earlier sampling from Navy engineers and the Hawaiʻi Department of Health showed no petroleum in the water.
Separate testing in December from the Honolulu Board of Water Supply confirmed that.
Samples taken from a Manana home had an unusual appearance, which might indicate higher levels of bacteria.
Tests showed chlorine levels below the required amount. Chlorine is used to prevent bacterial growth.
The Marines are now testing to see if additional remediation is needed at Manana.
