Production sites legally established within the unincorporated area and subsequently annexed to the city may continue without complying with the requirements of this chapter provided the site or operations on the site do not create a public nuisance as defined within this chapter. Whenever an existing production site which has not complied with these regulations is reworked, it shall then comply with these regulations. (Ord. 706 § 3 (Exh. A), 2019).