All receptacles and cans used for the collection of garbage and refuse shall be kept on the rear of the lot or at a convenient place upon the private premises to facilitate the collection thereof; provided, that where residential premises do not abut alleys, all baskets, boxes, plastic sacks, bundles, or other containers of leaves or grass, shall be placed by the owner or occupant of any such residential premises at the curb adjacent to the premises prior to the time of collection to facilitate the collection thereof. In no event shall receptacles, cans, or storage racks be located or permitted in City alleys, easements, or other City right-of-way.