When potholing, utility crews use a portable vacuum excavator. First, exam holes, generally measuring six to 12 inches deep, are created alongside the line the place they decide to dig or start out building. They excavate soil with superior-pace suction straight down right until the utility line is partially uncovered. https://f004.backblazeb2.com/file/DigitalAsset/Bess-Utility-Solutions-Hayward/Potholing-Utilities-Near-Me.html