Radioactive marker means radioactive material placed subsurface or on a structure intended for subsurface use for the purpose of depth determination or direction orientation.
Solid Waste Disposal Facility means any facility involved in the disposal of solid waste, as defined in NCGS 130A-290(a)(35).
Solid waste facility means a site, location, tract of land, installation, or building used for incineration, composting, sanitary landfilling, or other methods of disposal of solid wastes or, if the solid wastes consist of scrap tires, for collection, storage, or processing of the solid wastes; or for the transfer of solid wastes.
Natural radioactivity means radioactivity of naturally occurring nuclides.
Solid Waste Disposal Site means, as defined in NCGS 130A-290(a)(36), any place at which solid wastes are disposed of by incineration, sanitary landfill, or any other method.