§ 31.138 MONEY; WARRANTS; ACCOUNTS; PAYMENTS.
   (A)   The City Treasurer shall receive all monies belonging to this city and shall pay all warrants signed by the Mayor and countersigned by the City Clerk and not otherwise; and shall keep a separate account of each fund or appropriation and the debits and credits belonging thereto.
   (B)   The Treasurer shall give to every person paying money into the City Treasury a receipt therefor, specifying the date of payment, and upon what account paid, and shall file copies of such receipts with the Clerk with the monthly reports.
(65 ILCS 5/3.1-35-40) (1999 Code, § 1-2-75)