Food Safety Report: Salad, Crown Burgers, North 300 West, Salt Lake City, UT, USA 2 years ago • details 251 Comments Comment Suspected food poisoning. Symptoms: Nausea, Vomiting, Stomach Pain, Cramps, Chills Suspected source: Salad Onset: 4 to 12 hours Duration: 12 to 24 hours Sick: 3 people