California Code, Public Resources Code - PRC § 26567.1

(a) The legislative body may, by resolution, order the dissolution of a district formed under this division.  Any resolution ordering a dissolution is valid only if the legislative body, based on substantial evidence on the record, makes one or more of the following findings:

(b) If the board of directors is comprised of members of the legislative body, the decision of the board to dissolve a district shall be approved by the owners of more than 50 percent of the assessed valuation of the real property in the district within 90 days after a valid resolution ordering dissolution.

(c) A legislative body or a board of directors shall adopt a resolution setting a public hearing on the proposed dissolution and directing that notice shall be sent to the last known address of each homeowner within the district.  The notice shall include the date, time, and place of the hearing and include a copy of the proposed resolution ordering dissolution.  The notice shall be mailed first-class, postage prepaid, in the United States mail and be postmarked no later than 30 days prior to the date of the hearing.  The notice shall also set forth the address where written objections to the dissolution of the district may be mailed or otherwise delivered up to and including the time of the hearing.