Davis was installing a water mount on June 12, 2020, on an existing pipe at the worksite. The trench at the worksite was dug in Type C soil and the dimensions of the trench were greater than 5 feet in depth and 7 feet wide at the bottom by 15 feet, 8 inches in width [at the top] and 20 feet long. The trench was sloped at an angle steeper than one and one-half horizontal to one vertical. A Davis employee was working in a trench box measuring approximately 5 feet in height/depth by 7 feet in width.