(a) The board shall name one or more banks to serve as depository for district funds.
(b) District funds, other than those transmitted to a bank of payment for bonds issued by the district, shall be deposited as received with the depository bank. This subsection does not limit the power of the board to place a part of the district's funds on time deposit or to purchase certificates of deposit.
(c) Before the district deposits funds in a bank in an amount that exceeds the maximum amount secured by the Federal Deposit Insurance Corporation, the bank must execute a bond or other security in an amount sufficient to secure from loss the district funds that exceed the amount secured by the Federal Deposit Insurance Corporation.