Storm and surface water charges for each parcel of real property within the city shall be computed on a monthly basis. The amount billed shall be included on the sanitary sewer bill or on the water or garbage bill if not serviced by sanitary sewer. A separate billing may be made to those property owners of developed parcels within the city who are not city of Anacortes water, garbage, or sanitary sewer customers. (Ord. 2488 § 3, 1999)