All service pipes must be 18 inches deep from the top of curb or alley grade line. All gas meters must be located so that the meter connections are easily accessible in order that the meter index may be easily read and so that the stop cock can be easily reached to turn gas off or on. Meter connections must have street “Ell” on the inlet and “Ell” on the outlet. No gas meter shall be located under stoops, sidewalks, show windows or near any furnace or placed in any other position where they will be inaccessible or liable to injury.
(`85 Code, § 20-70)