The E-1 Extractive District is established as a district in which the principal use of land is for the excavation and removal of sand and gravel deposits. Specially, this district is designed and intended to allow for the removal of valuable mineral deposits, to protect land surrounding excavation projects from the inherent nuisance effects of mineral mining operations, such as dirt, dust, noise, vibration and traffic, and to assure that once the excavation operation is complete or otherwise abandoned, the land will be rehabilitated and restored in such a manner that it will not result in dangerous or unsightly conditions which could be detrimental to the general health, safety and welfare of residents and property owners in the City. Since the E-1 Extractive District is tailored exclusively to mineral mining operation and those functions directly related to extractive operations, this district is considered a finite district which will someday be replace by a more permanent zoning classification of the land.