Abstract: At approximately 1:00 p.m. on September 6, 2016, an employee was trying to locate the two manholes on site to confirm that they were actually installed. Sometimes the manhole get covered up by the landscaping work. The employee located one manhole. He popped open the top lid, using a shovel, to look down by using a flashlight from the edge. The employee was standing at the edge of the opening above ground so he could see which way the pipe was positioned indicating the direction of the next manhole.The employee lost consciousness in a 24 foot deep manhole and never regained it. The employee could have died from the fall and/or the contaminant in the manhole (confine space). This will not be determined until the medical examiner report was released and reviewed.