California Code, Public Utilities Code - PUC § 22407

(a) Each member of the board of directors shall receive compensation in an amount not to exceed one hundred dollars ($100) for each attendance at the meeting of the board held within the district, which amount shall be fixed from time to time by the board.  A director shall not receive pay for more than six meetings in any calendar month.  The board of directors shall, commencing January 1, 2019, if the district compensates its members for more than four meetings per calendar month, adopt a written policy, based on a finding supported by substantial evidence, why more than four meetings per month are necessary for the effective operation of the district.  The board of directors, by ordinance adopted pursuant to Chapter 2 (commencing with Section 20200) of Division 10 of the Water Code, may increase the amount of compensation received for attending meetings of the board by no more than 5 percent annually.

(b) Each director shall be allowed, with the approval of the board, all traveling and other expenses necessarily incurred by the member in the performance of the member's duties.  For purposes of this section, the determination of whether a director's activities on any specific day are compensable shall be made pursuant to Article 2.3 (commencing with Section 53232) of Chapter 2 of Part 1 of Division 2 of Title 5 of the Government Code.  Reimbursement for these expenses is subject to Sections 53232.2 and 53232.3 of the Government Code.