To the extent permitted by applicable law, the city reserves the right to regulate all rates and charges in a manner to be determined from time to time by the city council by ordinance. The council may establish whatever rate regulation method it deems reasonable, including without limitation a utility approach that allows a stated return on investment, a modified utility approach that allows automatic increases within a predefined range, an approach that regulates service quality but not rates, or any combination thereof. The rate regulation method may include without limitation rules governing allocation of depreciation: calculation, crediting, and treatment of tax benefits; and allowing and disallowing consideration of any interest expense. In addition to the power to regulate rates and charges, the city reserves the right to adopt other regulations including but not limited to regulations governing the company’s collection of advance charges and deposits, installation and reconnection charges, disconnection charges, all policies and procedures having a substantial effect on the company’s relationship with its subscribers or the city, and the availability of refunds. [Ord. 1998-09-075; Ord. 9121 § 15, 1982; Ord. 8999 § 38, 1981].