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
Iron Peak Sports and Events
Somerset, NJ
Horseshoe Casino
Baltimore, MD
Avocet Tower
Montgomery County, MD
Core5 Logistics Center at Codorus Creek
York County, PA
Home2Suites by Hilton
Seminole County, Florida
NRG Energy, Indian River Plant AQCS
Sussex County, DE
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.