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Drilling and Subsurface Exploration Consulting

We provide subsurface exploration and drilling services to clients through conventional test borings, cone penetrometer soundings, and monitoring well installations.

Services include, but are not limited to:

Drilling Services

  • Standard Penetration Test (SPT) Borings
  • Auger and Mud-Rotary Drilling
  • Low-Clearance Access Drilling
  • Monitoring Well Installation
  • Rock Coring
  • Shelby Tube Sampling
  • Concrete & Asphalt Coring
  • Well Rehabilitation
  • Well Abandonment
  • Rock and Soil Packer Testing

Instrumentation Installation

  • Inclinometers
  • Vibrating Wire Piezometer
  • Rod and Magnet Extensometers

In-Situ Testing

  • Electronic Cone Penetrometer Testing (CPT)
  • Seismic Electronic Cone Penetrometer Testing (SCPT)
  • Dilatometer Testing (DMT)
  • Rock and Soil Permeability Testing
  • Yield Testing for Municipal, Commercial, and Industrial Wells
  • Pressure Meter Testing (PMT)
  • Infiltration Testing

Featured Projects

One Glenwood Office Tower

Raleigh, Wake County, NC

Union Wharf

Baltimore, MD

Big Chill Beach Club

Sussex County, DE

Rehoboth City Hall

Sussex County, DE

Cedar Hill Mixed-Use Community

Anne Arundel County, MD

Partner With Us

With more than 500 engineers, geologists, scientists, technicians, and support personnel, GTA has the expertise, resources, and experience to meet your needs. Reach out to us today.