Cal. Sts. & Hy. Code § 5849
At the time appointed for such hearing, or at any time to which it is adjourned, the board of supervisors shall hear and pass upon the question of dissolution and all objections and protests and may grant or deny the same, and its decision thereon shall be final and conclusive. If the board of supervisors upon such hearing determines that the maintenance district shall be dissolved, the board of supervisors shall, by resolution, order the dissolution of the district and the district shall thereupon be dissolved. The maintenance and operation of the improvements of such district may be continued thereafter until the funds collected for the purpose of maintaining and operating them have been expended for that purpose.
Ca. Sts. and High. Code § 5849