The Office of Hawaiian Affairs will enforce trespassing and camping restrictions in Wahiawa, clearing out several homeless and abandoned campsites in the area.
The office owns 511 acres in Wahiawa, and says 17 campsites were found on property last week. Half of them appeared to be abandoned.
Officials say they pose health and safety issues with hazardous conditions and reports of illegal activity.
Over the past two years, OHA and social service providers have reached out to campers.
OHA provided official notice of enforcement last week. A second notice was given Wednesday, and additional notices are forthcoming.
Enforcement will begin on June 15 and include clearing of trash and hazardous waste, and grass and brush cutting.
Security patrols will monitor the site to ensure campers do not return.