Abstract: On April 5, 2013, Employee #1, a 59-year-old male and seven coworkers with at Emergency Medical Services Authority (EMSA) located on the fourth floor of a building Rancho Cordova, California had been complaining of a chemical odor on the North East side of the fourth floor. Because of the odor and feeling sick; at least eight workers drove themselves to the emergency room at Mercy Hospital in Folsom California. The seven coworkers were seen and released by medical personnel at Mercy Hospital on the same day. Employee #1 was admitted to the hospital and stayed in the hospital until April 7, 2013 for what appeared to be more serious symptoms; including headache, shortness of breath, and stomach discomfort.