Abstract: At approximately 10:24 a.m. on January 24, 2013, Employee #1 was assigned to repair a leaking water main that had been located the day before. An excavation was dug 17 ft long by 8.5 ft deep by 5 ft wide. The soil on site was a combination of water saturated material including clay and backfill from being previously excavated. No shoring was installed and a pump was installed to control the water leaking into the excavation. Once the water main was located, two coworkers entered the excavation to clean and complete the repair. The coworkers discovered they did not have the appropriate clamp and exited the excavation. Employee #1 informed the other coworkers he was going to go and get a larger clamp. A coworker asked if he could go back into the excavation to complete cleaning the main. Employee #1 informed the coworkers to watch the sides of the excavation while he was cleaning the main. A 13 ft long by 8.5 ft high section of the vertical east side collapsed into the excavation totally covering Employee #1. The coworkers entered the excavation to try to rescue the employee. They were able to uncover Employee #1's head and body and then extracted the employee out of the excavation with the aid of the first responders. Employee #1 was transported to a medical facility, where he later dies.