Water Code § 36432
CHAPTER 4.9. Alternative Provisions for the Formation of Improvement Districts and the Issuance of Bonds Therefor
As an alternative procedure for the annexation of land to an improvement district, additional lands may be included within any improvement district by resolution of the board declaring the territory annexed after receipt by the board of written consent of the owners of all of the land to be annexed thereto which consent shall include the terms and conditions of annexation, if any.