EMERGENCIES:  Emergencies involving Biohazard Spills To contact EHRS during office hours, Monday through Friday, 8 AM to 5 PM 215-898-4453 After Hours: 215-308-5266 (pager) After the beeps, dial your phone number. If your page is not answered, call the University's Operations Control Center (OCC) at 215-746-6620. All Fire, Police and Medical Emergencies 511     From Penn Campus building 215-573-3333     Off Campus & HUP For additional information on Biological Spills see the Biological Safety Manual