3.20.200 Sewage works cash reserve fund.
   A.   There is created in the sewage works of the city a fund entitled cash reserve fund.
   B.   The clerk-treasurer of the city is authorized and directed to transfer monthly to the sewage works depreciation fund a sum equal to at least five percent of the cash operating revenue of such sewage works. (Prior code §§ 7-35, 7-36)