What Is Hydrovac Excavation?

Posted by on Sep 15, 2010 in Featured | 0 comments

What Is Hydrovac Excavation?

The process of Hydro Excavation, the only non-destructive method of digging, utilizes pressurized water and a vacuum system to quickly and safely expose underground infrastructure.

During the hydrovac process, pressurized water is injected into the ground through a handheld wand. As the soil cover is liquefied, the resulting slurry is simultaneously extracted by a powerful vacuum and stored in a 14 yard debris tank onboard the hydrovac.

Hydrovacs can dig effectively in all soil types, including clay, and with the aid of onboard heaters, hydrovacs provide a safe means of digging in frozen ground. Our powerful hydrovac systems can excavate up to 60′ deep and at distances of 600′ from the truck, enabling work to be done in areas of limited access.

We recently completed a job for the City of Kingston, NY vacuuming out debris from a tunnel collapse 90 feet deep and 220 feet laterally.


  • Hydrovac unit was constructed by Presvac Systems of Burlington, Ontario and was completed in October, 2003.
  • The Hydrovac is mounted on a 2004 Freightliner truck.
  • Water Storage Capacity – 1200 Gallons
  • Debris Storage Capacity – 14 Cubic Yards
  • Hibon 5300 SCFM vacuum blower.
  • 5800 PSI, 9 GPM water pump
  • 440,000 BTU hot water heater
  • Completely insulated for minimal noise.