1. The secretary of the board of supervisors in any drainage district shall hold the office of treasurer of such district, except as otherwise provided herein, and the treasurer shall receive and receipt for all the drainage taxes collected by the county collector or collectors of revenue, and the treasurer shall also receive and receipt for the proceeds of all tax sales made pursuant to the provisions of sections 242.010 to 242.690.

2. The treasurer shall receive a salary, payable monthly, such as the board of supervisors may fix, and all necessary expenses; the board of supervisors shall furnish the secretary and treasurer the necessary office room, furniture, stationery, maps, plats, typewriter, and postage, which office shall be in the county, or one of the counties, in which such district is situate, or in an adjoining county, and the district records shall be kept in such office.

3. The treasurer may appoint, by and with the advice and consent of the board of supervisors, one or more deputies as may be necessary, whose salary or salaries and necessary expenses shall be paid by the district.

4. The treasurer shall give bond in such amount as shall be fixed by the board of supervisors, conditioned that the treasurer will well and truly account for and pay out, as provided by law, all moneys received by the treasurer as taxes from the county collector or collectors, and the proceeds from the tax sales of delinquent taxes, and from any other source whatever on any account or claim of said district, which bond shall be signed by at least two sureties, approved and accepted by the board of supervisors, and the bond shall be in addition to the bond for the proceeds of sales of bonds, which is required by section 242.480. The bond of the treasurer may, if the board shall so direct, be furnished by a surety or bonding company, which shall be approved by the board of supervisors; bond shall be placed and remain in the custody of the president of the board of supervisors, and shall be kept separate from all papers in custody of the secretary and treasurer.

5. The treasurer shall deposit all funds received by the treasurer in some bank, banks, or trust company to be designated by the board of supervisors. All interest accruing on such funds shall, when paid, be credited to the district.

6. It shall be the duty of the board of supervisors to audit or have audited the books of the treasurer of the district each year and make report thereof to the landowners at the annual meeting and publish a statement within thirty days thereafter, showing the amount of money received, the amount paid out during such year, and the amount in the treasury at the beginning and end of the year, and file a copy of such statement in the office of the county clerk of each county containing land embraced in the district.

7. The treasurer of the district shall pay out funds of the district only on warrants issued by the district, said warrants to be signed by the president of the board of supervisors and attested by the signature of the secretary and treasurer. All warrants shall be in the following form: