(8) Other funds from any public or private source received for use for any of the purposes for which the fund has been established.

2. Uses. The fund may be used for one or more of the following purposes:

A. To make loans to counties for the acquisition, design, planning, construction, enlargement, repair, protection and improvement of public service infrastructure and capital improvements;

B. To guarantee or insure, directly or indirectly, the payment of notes or bonds issued or to be issued by a county for the purpose of financing the construction of any capital improvement described in this section;

C. To guarantee or insure, directly or indirectly, funds established by counties for the purpose of financing construction of any capital improvement;

D. To invest available fund balances and to credit the net interest income on those balances to the fund;

E. To invest as a source of revenue or security for the payment of principal and interest on general or special obligations of the bank if the proceeds of the sale of the obligations have been deposited in the fund or loaned to eligible participants in the programs financed with the fund, or as a source of revenue to subsidize county loan payment obligations; and

F. To pay the costs of the bank associated with the administration of the fund and projects financed by it as long as no more than 2% of the aggregate of the highest fund balance in any fiscal year is used for these purposes.

3. Establishment of accounts. The bank may establish accounts and subaccounts within the fund as it determines desirable to effectuate the purposes of this section, including, but not limited to, accounts to segregate a portion of the fund for grants and as security for bonds issued by the bank for deposit in the fund and to be invested for the benefit of specified projects receiving financial assistance from the fund.

4. Eligibility terms. The bank shall develop by rule the terms of repayment of loans. A loan made pursuant to this section