Mining, loading and hauling of coal, clay, sand, gravel, topsoil or other aggregate or minerals, and oil or gas well drilling, including equipment, buildings, or structures for screening, crushing, mixing, washing, or storage, provided that:
[1] No excavation shall take place within 40 feet of any property line fronting upon a public road or a greater distance if required by Illinois Statute.
[2] The entire property is fenced in by a statutory fence.
[3] A plan of development for the reclamation of the land is provided as part of the application for a conditional use permit.
[4] Buildings, structures, equipment and operations for processing on the premises of material secured by such uses shall be allowed only when authorized by the City Council for a specified period of time, and provided the operations shall conform with performance standards set forth in the M Manufacturing District measured at the lot line.