Cal. Wat. Code § 36454.4
At the conclusion of the hearing on the resolution of intention provided for in Section 36454.3, the board may adopt a resolution declaring the existing coterminous improvement districts described in the resolution of intention to be consolidated in one improvement district which shall be designated therein. The resolution shall contain the legal description thereof as well as a statement of the purposes of the consolidated improvement district. If the parent district has adopted the alternative method for the levy, collection and enforcement of district assessment by the county and is operating under the provisions of Part 7.5 (commencing with Section 37200) of this division, it shall file a statement as required by Chapter 8 (commencing with Section 54900) of Part 1, Division 2, Title 5 of the Government Code. The resolution shall contain a determination that such consolidation is in the best interests of the present and future property owners and taxpayers. Any such resolution shall be subject to referendum held within the boundaries described in the resolution adopted as provided for herein.
Ca. Water Code § 36454.4