In the event of an emergency in which a sewer, water main, gas line or other conduit breaks or bursts such as to endanger the property, life, health or safety of any individual, the person, firm or corporation owning such line, without first applying for a street opening permit, shall immediately notify the Police Department and then take proper action to cure or remedy the hazardous situation. After remedying the immediate situation, the person or firm owning the utility line shall apply for a street opening permit in accordance with the provisions of this chapter within 48 hours of the repair. The owner shall not proceed with any permanent repair until he has first obtained a street opening permit.