California Code, Health and Safety Code - HSC § 32103

(a) The board of directors shall serve without compensation except that the board of directors, by a resolution adopted by a majority vote of the members of the board, may authorize the payment of not to exceed one hundred dollars ($100) per meeting not to exceed six meetings a calendar month as compensation to each member of the board of directors.Commencing January 1, 2019, if the district compensates its members for more than five meetings in a calendar month, the board of directors shall annually adopt a written policy describing, based on a finding supported by substantial evidence, why more than five meetings per month are necessary for the effective operation of the district.

(b) 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.

(c) Each member of the board of directors shall be allowed his or her actual necessary traveling and incidental expenses incurred in the performance of official business of the district as approved by the board. 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.