The Navy added that it has seen concerns from people in the affected neighborhoods who were exposed to the contaminated water and reported symptoms including nausea, vomiting, diarrhea, headaches, and skin related concerns.
The Navy isolated the Red Hill well last Sunday and sent samples out for testing Monday, it said.
“The results of the Red Hill sample showed petroleum hydrocarbons roughly four to ten times below the Hawaii Department of Health Environmental Action Level (EAL). The Navy had a separate test that confirmed vapors, which is another indication of petroleum hydrocarbons,” it said in a statement.
“The Navy is developing a plan to restore the potable water system to EPA standards, identify how this contaminant got in the well, and fix the well,” the statement continued.
On Tuesday, when BWS heard about the shutdown of the well, it reduced pumping capacity by 50%, it said in a news release.
“We are deeply concerned that we were not notified immediately by the Navy regarding the shutdown of their Red Hill water source,” BWS Manager and Chief Engineer Ernest Lau said in a statement, adding that the Halawa shaft was shut down in an “abundance of caution.”
“We have data that shows when they stop pumping at Red Hill, water starts moving in the direction of our Halawa Shaft due to our pumping,” Lau said.
The Halawa shaft pumps 10 million gallons of water per day and delivers water to 20% of Honolulu’s water supply, the BWS said.
The delegation asked that the Navy “immediately” identify, isolate and fix the problems that allowed the contamination to happen. They also urged the governor to request assistance from the Biden Administration.