### How to Calculate the Cost of Vacuum Excavation ...

2019-10-14u2002·u2002The formula for estimating vacuum excavation costs. A 1-foot diameter hole at a depth of 5 feet = 3.9 cubic feet or 0.15 cubic yard. This is doubled to account for the volume of water used: 3.9 x 2 = 7.8 cubic feet 0.3 cubic yards. Now multiply that total by the number of holes to be excavated. For example, ten holes would produce 3 cubic yards ...

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