California Code, Water Code - WAT § 1535

(a) Any fee subject to this chapter that is required in connection with the filing of an application, registration, request, statement, or proof of claim, other than an annual fee required after the period covered by the initial filing fee, shall be paid to the board.

(b) If a fee established under subdivision (b) of Section 1525, Section 1528, or Section 13160.1 is not paid when due, the board may cancel the application, registration, petition, request, statement, or claim, or may refer the matter to the California Department of Tax and Fee Administration for collection of the unpaid fee.