Cal. Pub. Util. Code § 103262

The general manager shall submit the proposed plan, or an element or amendment thereof, to the board which shall hold a public hearing thereon. Notice of the time and place of the hearing shall be given at least 30 days before the hearing. The notice shall be published pursuant to Section 6061 of the Government Code, and written notice shall also be mailed to each city council in the county. The hearing may be continued from time to time.