Whenever any body of water, whether natural, manmade, or partially natural and partially manmade, is a hazard to children because of its size, depth, vegetable growth therein, nature of soil, or for any other reason and the city council so finds, within 10 days after such finding, every person owning or in possession of any premises on which the whole of such body of water exists, shall erect and thereafter continuously maintain completely around such body of water a fence which shall comply with either CMC 8.32.030 or 8.32.040 and 8.32.050.