That portion of a commercial or industrial nonconforming use of property involving outside storage of inventory, supplies or other material shall be abated within six months of the adoption of the ordinance codified in this chapter unless, within such period, application for site plan approval is made and thereafter granted for such outside storage. Site plan approval for nonconforming outside storage shall be processed in accordance with the standards of the district within which such use is first permitted. (Ord. 1989-02 § 5)