Vacuum Excavation
Vacuum Excavation also known as Vacuum Digging, Hydro Excavation or Non-Destructive Digging (NDD).
This method of digging is considered best practice practice for digging without damaging existing underground utilities and for the safe location of underground utilities. Traditional methods of excavation are: using a excavator/backhoe, chain/trencher digger, auger, or digging by hand.