Water Code § 24100
CHAPTER 5. Dissolution of Improvement Districts
At any time prior to the incurring of any indebtedness or upon the full payment of all indebtedness of an improvement district, the board may by resolution set a time for a hearing on whether or not to dissolve the improvement district or a petition, signed and acknowledged by not less than the number of holders of title to land constituting the improvement district required to sign a petition to form the improvement district, may be filed with the board requesting that the improvement district be dissolved.