All moneys or proceeds held in any of the specific funds as created in this article, shall, whenever possible, be invested in savings or time deposits in a state or national bank, savings and loan association or credit union insured by the Federal Deposit Insurance Corporation, Federal Savings and Loan Insurance Corporation, National Credit Union Administration or in direct obligations of the United States Government and shall be credited back to the particular capital improvement fund so designated, plus interest earned thereon. (Ord. 482 § 6, 1986)