Owners and operators must maintain records in accordance with section 11-280.1-34 that are capable of demonstrating compliance with closure requirements under this subchapter. The results of the excavation zone assessment required in section 11-280.1-72 must be maintained for at least three years after completion of permanent closure or change-in-service in one of the following ways:
Haw. Code R. § 11-280.1-74