(a) 
All openings made in the public streets or alleys to install plumbing must be made as carefully as possible, and all materials excavated from the trenches shall be removed or placed where the least inconvenience to the public will be caused.
(b) 
All openings must be replaced in precisely the same condition as before the excavation started and all rubbish and materials must be removed at once, leaving the street or sidewalk clean and in perfect repair.
(c) 
All openings shall be marked with sufficient barriers. Flares or red lamps shall be maintained around the opening at night and all other precautions shall be taken by the plumber or excavator to protect the public from damage to person or property.
(d) 
The city shall assess labor and material charges to repair damage to curbing and paved streets.
(1999 Code, sec. 150.241)
(a) 
The city water department and the city plumbing inspector are authorized to disconnect all water service or services to any premises, lands, buildings, or structures where it is found that an immediate hazard exists to the purity or potability of the water supply.
(b) 
The city water department and the city plumbing inspector are authorized and directed to take such steps as necessary to determine all potential hazards to the purity or potability of the city water supply which exist. Upon determining that potential hazards exist, it shall be their duty to immediately provide notice to the owner or other person responsible for the premises, specifying the hazards, and notifying said person that, in the event that the hazard is not corrected within 30 days from the date of the notice, all water services shall be discontinued thereafter, until the requirements of this article have been complied with.
(1999 Code, sec. 150.242)