§ 13.12.090   Interference with operation of sewerage system.
   A.   No unauthorized person shall enter any city sewer, manhole, pumping station, treatment plant or appurtenant facility. No person shall maliciously, wilfully or negligently break, damage, destroy, deface or tamper with any structure, appurtenance or equipment which is part of the city system. Any person violating this provision will be subject to immediate arrest.
   B.   No person, other than an authorized employee or agent of the city, shall operate or change the operation of the city sewer, pumping station, treatment plant, outfall structure or appurtenant facility.