It shall be unlawful for any person in possession, charge or in control of any dwelling, apartment house, trailer camp, restaurant, place of business or manufacturing establishment where garbage is created or accumulated to fail at all times to keep portable cans or containers of standard type and construction and to deposit the garbage therein; provided, however, that stiff paper products and wooden or metal waste matter may remain outside of cans or containers, if neatly and orderly stored. The cans or containers shall be strong, water-tight, rodent-proof, insect-proof and comply with the current garbage franchise. The cans or containers shall be kept tightly closed at all times except when being emptied or filled and shall be kept and maintained at a place or places reasonably accessible to garbage haulers at first floor or ground level.