(a) When necessitated pursuant to the provisions of this chapter, the contractor shall agree to pay to the City the cost of services performed by the City Public Works Department work crew on behalf of the contractor whether such work is requested by the contractor, Public Works Director, or in his absence, the City Manager. The charge for such services shall be at such rates calculated to reimburse the City for its actual labor and material costs plus ten percent (10%) for administrative costs. In addition, the contractor agrees to reimburse the City at pre-determined rates for the use of City equipment used by the City crew on the job.

(b) However, the City crew shall not be called out on any project unless an emergency situation arises which, in the opinion of the Public Works Director, or in his absence, the City Manager determines to be a threat to the public health and safety. In addition, the City crew shall be called out under such circumstances only after the City through the Public Works Director, or in his absence, the City Manager has made every reasonable effort to reach the contractor responsible for the project. The contractor may set forth the telephone numbers or other means of communication on his individual permit in the event such an emergency situation arises.