Haw. Rev. Stat. § 174-21
Whenever under legislative authorization, past, present or future, general obligation bonds of the State are issued or the proceeds of general obligation bonds of the State are used, by way of advancement, for the establishment and construction of any specific project under the jurisdiction of the board of land and natural resources in its water program, the board may repay the same to the director of finance, upon the expiration of ten years from the time of initial service to the project, which ten-year term shall be the development period, as repayment on account of the advancement. Such payments shall be made over the period of the next succeeding forty years after the termination of the development period, the total of which payments shall be sufficient to reimburse the State for redemption of the bonds together with interest paid by the State in respect of the same.
The foregoing method of repayment of advances shall be effective for each phase of any multi-phase project, the amortization period for the advancement commencing ten years from the time that facilities to provide service for each new project phase are put into operation.
In the event that changing use of the land in a project substantially increases revenues, or other circumstances make it reasonably possible or desirable for the board to accelerate the amortization of advances it shall be permitted to do so.
HRS § 174-21