(A) Pipes shall not be surrounded or covered by cinders or other material of corrosive effect, but preferably should be laid in sand, and where carried in conduit, the opening of the conduit must be fully protected to prevent escape of liquid under dangerous conditions.
(B) Pipe lines buried on railroad property shall be laid at a depth of not less than three feet; where they pass under tracks they shall be laid at least four feet below the bottom of ties.
(C) Piping buried in city streets or other area where other pipe lines are carried shall be placed in conduit. Joint of conduit shall be sealed to prevent leakage and pitch shall be toward tank yard.
(D) Underground piping shall be coated with asphaltum or other corrosion-resisting materials.
(1980 Code, § 27.024) Penalty, see § 98.999