The accounting system for the stormwater utility:shall conform to generally accepted principles of utility accounting; and shall be kept on the accrual basis and in the manner prescribed under <cite data-doc="City of Baltimore, Md., Charter" data-path="VII|§11">City Charter Article VII, § 11</cite> {“Department of Finance: accounting”}. The records of revenues of the stormwater utility shall be kept so that the fees imposed on each class of property, according to the rate schedules adopted under <cite data-path="|27">this article</cite>, can be determined. Ord. 13-143