Buildings or structures which, on the effective date of this amendment or any subsequent amendments thereto, are nonconforming in regard to aboveground on-site utility lines, may continue to be used, altered or enlarged in the same manner as if such nonconforming utility lines did not exist.
('64 Code, § 53.43) (Am. Ord. 367, passed 12-11-69; Am. Ord. 382, passed 6-11-70)