48-2701. District treasurer The county treasurer of the county in which the district was organized shall be the custodian of all the funds of the district. For this purpose the county treasurers of other counties in which a portion of the district is located shall, not more than twice each year, upon the order of the board of directors, settle with the board and transmit to the treasurer of the county in which the district was organized all money in their possession belonging to the district. Such county treasurer shall receive and receipt for the money, and place it to the credit of the district. He shall be responsible upon his official bond for the safekeeping and disbursement, in the manner provided by this article, of all money of the district held by him.
Arizona Legal Code