The board may, without a vote of the electors, provide for the issuance of, and issue, general obligation bonds of the district or for an improvement district thereof if:
Bonds issued pursuant to this section may bear interest at a rate or rates not to exceed 8 percent per year, payable semiannually, except that interest for the first year may be payable at the end of that year. When bonds are issued pursuant to this section, unissued bonds as referred to in (a) and (b) above in a principal amount at least equal to the principal amount of bonds issued pursuant to this section, shall be canceled by order of the board and shall not be issued.
Ca. Water Code § 71960