RCW 89.30.322

Any claim against the district shall be presented to the district board for allowance or rejection. Upon allowance the claim shall be attached to a voucher verified by the claimant or his or her agent and approved by the president and countersigned by the secretary and directed to the county auditor of the county in which the organization of the reclamation district was effected, for the issuance of a warrant against the proper fund of the district in payment of said claim.