(1) The treasurer of the county in which a public hospital capital facility area is located shall be treasurer of the public hospital capital facility area, except that the commission of the public hospital district in which the facility area is located by resolution may designate some other person having experience in financial or fiscal matters as treasurer of the public hospital capital facility area. If the treasurer is not the county treasurer, the commission shall require a bond, with a surety company authorized to do business in the state of Washington, in an amount and under the terms and conditions which the commission by resolution from time to time finds will protect the public hospital capital facility area against loss. The premium on any such bond must be paid by the public hospital capital facility area.

(2) All public hospital capital facility area funds must be paid to the treasurer and must be disbursed by him or her only on warrants issued by an auditor appointed by the commission, upon orders or vouchers approved by it. The treasurer shall establish a public hospital capital facility area fund, into which all public hospital capital facility area funds must be paid, and he or she shall maintain such special funds as may be created by the commission, into which he or she shall place all money as the commission may, by resolution, direct.

(3) If the treasurer of the district is the treasurer of the county all public hospital capital facility area funds must be deposited with the county depositaries under the same restrictions, contracts, and security as provided for county depositaries. If the treasurer of the public hospital capital facility area is some other person, all funds must be deposited in a bank or banks authorized to do business in this state as the commission by resolution designates, and with surety bond to the public hospital capital facility area or securities in lieu thereof of the kind, no less in amount, for deposit of county funds. The surety bond or securities in lieu thereof must be filed or deposited with the treasurer of the public hospital capital facility area, and approved by resolution of the commission.

(4) All interest collected on public hospital capital facility area funds belong to the public hospital capital facility area and [must] be deposited to its credit in the proper public hospital capital facility area funds.

(5) A public hospital capital facility area may provide and require a reasonable bond of any other person handling moneys or securities of the public hospital capital facility area. The public hospital capital facility area may pay the premium on the bond.