When the city has incurred revenue bonds for capital improvements to the water system and the lender requires that a reserve amount be set aside equal to one year’s payment, a surcharge may be added to the water rate in order to comply with this requirement. If, and to the extent that, the rates produce revenue sufficient to meet this obligation, then a surcharge may not be required. [Ord. 910 Art. 18, § 3, 2016; Ord. 878 Art. 18, § 3, 2015.]