(A) The Administrative Authority may require boring and jacking of utility lines and conductor casings in public streets.
(B) All nonrigid, nonmetallic pipe larger than three inches shall be installed in a conductor casing.
(C) All metallic and nonmetallic pipe three inches and under may be installed without a conductor casing.
('61 Code, § 18.19) (Ord. 702, passed - - )