GEOTECHNICAL DRILLING Great West Drilling rigs are completely equipped for drilling in the most difficult rock and soil conditions. Drive samples are obtained safely and efficiently through the use of automatic drop hammers. The AP1000 Becker Hammer equipment is supercharged for increased driving energy and more efficient operation. Our equipment is in compliance with the engineering specifications for determining penetration resistance using the Becker Hammer to drive closed drill pipe as a large diameter penetrometer. GWD personnel have extensive experience with geotechnical sampling methods and installation of instrumentation including piezometers, inclinometers, bench markers, settlement monuments, and others. GEOTECHNICAL SERVICES: Becker Hammer Drilling Becker Density Testing Hollow and Solid Stem Auger Testing Air Rotary Drilling Wireline Coring Mud Rotary Drilling Automatic Sample Hammers Instrumentation and Grouting