The city council declares that the “storm drainage system” shall be defined as follows: natural and manmade storm drainage facilities used for the conveyance and/or storage or water quality treatment of storm and surface water within the boundaries established in ACC 13.48.020 including, without limitation, all such properties, interests and rights acquired by adverse possession or by prescription. The definition also includes the conveyance or storage of storm and surface waters that flow through, under, or over lands, land forms, watercourses, sloughs, streams, ponds, rivers, lakes and wetlands, beginning at a point where storm or surface waters enter the city system and ending at a point where such storm or surface waters exit from the city’s storm and surface water system, and in width to the full extent of inundation caused by storm or flood conditions. (Ord. 5853 § 1, 2004; Ord. 5212 § 1 (Exh. J), 1999; Ord. 4492 § 4, 1991.)