The state has opened an investigating into a potential illegal landfill at Kamehameha Schools Kapalama Heights campus, just as a former staffer is alleging that the dumping has been going on for decades.
Ronnie Kang, a retired Kamehameha Schools carpenter, said the site, located about half a mile uphill from the high school, has been an active dump site for years.
"There's stuff like old freezers, stoves ... appliances," Kang said.
"They were dumped in there and covered up with brush ... Someone should go down there with a metal detector."
Kamehameha Schools officials said they only recently uncovered the dump site while doing some clearing of their land.
But Kang says grounds crews regularly take their green waste, trees and other plant debris there.
But they also took dumped construction materials and other debris from campus construction projects there, he said.
"Because it cost money and that's why," he said.
Meanwhile, the state said that Kamehameha Schools does not have a permit to operate a landfill there. It says it launched its investigation after receiving an complaint from environmental activist Carroll Cox.
"We will have our inspectors out in the field looking at those allegations and working with the land owner to the extent there are any violations of the laws," said Deputy Health Director Gary Gill.
Kamehameha Schools said its staffers are testing for hazardous materials and plan to remove the debris once they get the all-clear signal.