16 The licensee, permittee or lessee shall, as soon as weather or ground conditions permit, upon the final abandonment and completion of the plugging of any well or structure test hole, clear the area around the location of all refuse material, burn waste oil, drain and fill all excavations, remove concrete bases, machinery and materials other than the marker provided for in subsection 15(5) and level the surface to leave the site as nearly as possible in the condition encountered when operations were commenced.