There is a growing trend toward the use of air excavation for exposing utilities in sandy, dry or granular soils. One of the advantages of air excavation is that it allows operators to put the excavated soil back in the hole.
For a cleaning crew working on a congested city block, locating an existing utility is only half the battle. Locators can provide a precise target, but owners and engineering specifications will often demand visual inspection to help verify these findings. Methods such as...
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