[Ord. No. 28-1997, § 1202.0, 3-4-1997]
Existing uses or structures which are not permitted in sections 102-873, 102-874, 102-875 and 102-876 which are legally owned, occupied or maintained within the Aquifer-Watershed Over-lay District of the City on July 17, 1990, are nonconforming uses under the provisions of this chapter. Legally nonconforming uses may continue provided they do not create any significant risk of causing an adverse impact upon the quantity and/or quality of the waters of the aquifers and/or watershed of the City water supply. No nonconforming use may be changed to another nonconforming use or expanded in any way.