All culinary water service pipes used underground shall be approved by the City Engineer and waterworks superintendent according to specifications as approved by the City Council. Said water service pipes shall be laid not less than three feet below the ground and of sufficient strength to stand the water pressure. All such work, alterations or extensions thereof, together with the size of the pipe, shall be to the acceptance of the City administrator and the City Engineer in consultation with the waterworks superintendent. No extension of service pipes shall be made without first obtaining a permit therefor from the City administrator and the City Engineer. (Ord. 4-77, 1977: prior code § 26-59)