Extraction, commercial. The act of removing more than 750 cubic yards of any natural resources in any one-year period from the land, including, but not limited to, the removal of earth, rock, gravel, sand and underground materials, excluding timber and water; the preparation and processing of those same natural resources, including any activities or processes or parts thereof for the extraction or removal from their original location and the preparation, washing, cleaning, crushing, stockpiling or other processing of minerals at the mine location so as to make them suitable for commercial, industrial, or construction use; for the purpose of sale. Commercial extraction excludes any other manufacturing processes, or other related commercial activities at the same property location. Commercial extraction shall not include site preparation activities which have Planning Board approval, or excavations in aid of agricultural activities consistent with New York State Agricultural and Markets Law, as amended.