(a) The district shall create a maintenance and operating fund which shall consist of any money collected by assessment or other methods for the maintenance and operation of property owned by the district and for temporary rent owed to the United States.
(b) The district shall pay all operating expenses and any balance due on construction work, extensions, and improvements from the maintenance and operating fund with warrants executed in the manner provided in this chapter.
(c) If the district intends to enter into a contract with the United States for the construction of the irrigation system, the expenses, debts, and obligations may be paid from the maintenance and operating fund.