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Services

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)
  • Pressure Meter Testing (PMT)
  • Borehole Shear Testing (BST)
  • Rock and Soil Permeability Testing
  • Yield Testing for Municipal, Commercial, and Industrial Wells
  • Infiltration Testing

Featured Projects

Mine Road Bridge

Stafford County, VA

PSTA

Rockville, Montgomery County, MD

Pipeline Expansion and Compressor Station Upgrade

Chester Co., PA and New Castle Co., DE

Ballard Green

Baltimore 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.