Abstract: On July 18, 2006, Employee #1 was part of a landscaping crew planting trees at a new home construction site. Employee #1 began to feel dizzy, and sat down in the shade then began to vomit. Employee #1 was taken to the hospital and was admitted overnight and treated for dehydration. Employee #1 said during an interview that he was drinking a lot of water; but, it was just too hot. There was shade at the work site (houses, garages). Employee #1 was trained on heat stress prevention. There was plenty of water on site according to Employee #1. Employee #1 indicated he had been sick but had not been seen by a doctor.