We came across this video on the National Park Service's attempt to obtain a "ground water management area designation" for the Keauhou Aquifer System Area on Hawaii Island. The petition and supporting exhibits can be found here.
The County of Hawaii objects to such a designation which would keep the regulation of the water resource with the County and not the statewide Commission on Water Resource Management.
Mayor Billy Kenoi testified at the Commission's public hearing. Home rule, Big Island-style for sure.
My partner Robert Thomas has a great post on home rule here.