Section 4731 Of Article 3. Officers From California Health And Safety Code >> Division 5. >> Part 3. >> Chapter 3. >> Article 3.

. If additional territory is annexed to the district as well as whenever any change takes place in the character of the territory, by the incorporation of a city or otherwise, resulting in a condition which makes it necessary for a change to be made in the membership of the district board, the change in the membership of the district board takes place and becomes effective immediately.