Cal. Wat. Code § 13869
All bonds herein authorized, which shall have been duly sold and delivered as herein provided, shall constitute valid and legally binding general obligations of the State of California, and the full faith and credit of the State of California is hereby pledged for the punctual payment of both principal and interest thereon.
There shall be collected annually in the same manner and at the same time as other state revenue is collected such a sum, in addition to the ordinary revenues of the state, as shall be required to pay the principal and interest on such bonds as herein provided, and it is hereby made the duty of all officers charged by law with any duty in regard to the collection of such revenue, to do and perform each and every act which shall be necessary to collect such additional sum.
All money deposited in the fund which has been derived from premium on bonds sold shall be available for transfer to the General Fund as a credit to expenditures for bond interest.
Ca. Water Code § 13869