Gregg Drilling & Testing, Inc. (Gregg) offers a wide range of geotechnical and environmental cone penetration testing (CPT) and geophysical testing equipment. Cone penetration testing is a process whereby soil characteristics are determined when a cone penetrometer is driven into the subsurface. The CPT provides a rapid, reliable and economical means of determining soil stratigraphy, relative density, strength and hydrogeologic information (static and dynamic pore pressure, hydraulic conductivity). Gregg’s skilled and knowledgeable operators can retrieve data at a faster rate even in difficult conditions, allowing less time on the job and a lower cost to the client. Our highly trained staff can then provide you with the technical support necessary to accurately interpret the cone penetration data we provide and assist you in the design of your site investigation program.
