Utility Clearance

Air Vacuum Excavation

Gregg Drilling operates air vacuum excavation systems primarily for utility clearance before drilling activities commence. It is standard practice to either hand auger or air-vac a borehole location to anywhere from 5-10ft below ground surface. This confirms that no utilities are present and drilling activities can commence. Any utility clearance is performed only after obtaining a USA ticket number and noting marked utility locations.


How Air Vacuum Excavation Works:

Air-vacuum works by forcing out high-velocity, supersonic air to explode the soil from within for easy vacuuming and quick backfilling. The vacuum excavation system utilizes kinetic energy in a high velocity air stream to penetrate, expand, and break up soil. The loosened chunks of soil and rocks are then removed from the hole with a powerful vacuum and are ready for quick backfilling. This system offers higher performance in most soils, which means greater efficiency and lower cost for you. Air vacuum excavation turns a backbreaking and dangerous job into a fast, simple, safe and cost effective process.

Digs faster than water in most soils

Collected spoils remain dry for fast, efficient backfilling

Eliminates mud disposal problems

Safer for utilities and operator

Air won’t damage road base



  • Underground Utility Location Verifications
  • Natural Gas Pipeline Bell Joint Leak Repair
  • Cathodic Protection Installation
  • Gas or Water Line Service Terminations or Installations
  • Manway and Valve Box Cleaning/Maintenance

We’re ready for you

With over 35 years experience drilling in California and surrounding states, Gregg Drilling can handle any size project. We hope to demonstrate our value through quality equipment, knowledgeable and experienced personnel and our exceptional safety standards.

Additional Services