As used in this article, the following terms shall have the meanings indicated:
The excavation or extraction of earth, sand, gravel, stone, quarry material, clay, loam, humus, topsoil or other earth material from a lot and removal thereof from that lot; or any temporary storage of such materials by stockpiling, or any processing of excavated or stockpiled materials, or any of the related land use activities engaged in during the above activities such as construction of buildings, barriers and other structures, clearing of property, removal or placement of trees, vegetation and earth material, or the regrading or movement of earth material within the boundaries of a single lot or subdivision.