The plan must provide that after the large-scale solar energy system is no longer in use as originally approved or is inadequately maintained, the solar energy system shall be removed, whether above or below ground, including fencing, infrastructure, pre-construction foundations, and piers, footers or other supports to be removed to a depth of 48 inches below the soil surface. The plan shall also address the disposition of underground electric lines, and provide for the restoration of grade, soil, and vegetation, to return the parcel to conditions acceptable to the property owner, the OCSWCD, and the State Department of Agriculture and Markets.