(a) If, as the result of an investigation, the Department of Public Health determines that a public health hazard exists at a site due to mosquitoes or other vectors, it may order such remedial measures as it deems necessary.(b) The Department of Public Health may arrange for the cleanup of a site determined to be a public health hazard, or for the application of pesticides at such a site, if the person responsible for the site refuses to take timely appropriate action. The Department shall fine the person responsible for the site twice the amount of the cost of the Department's remedial measures.(c) If, as the result of an investigation, the Department of Public Health determines that the public interest, safety, or welfare imperatively requires emergency action to respond to an immediate public health hazard at a site due to mosquitoes or other vectors, the Director may issue an emergency order incorporating a finding to that effect; such order may require closure or isolation of the site, pending a hearing or other action which shall be promptly instituted and determined.