Exploration & Mining Services
Exploration and Mining
Gregg Drilling can conduct specialized geotechnical drilling and Cone Penetration Testing (CPT) to extract samples and gather data from a site for exploration/mining purposes. These samples can be utilized to determine if and/or what type of mineable mineral deposits exist, to assess whether it would be economical to mine, to assist in the management and evaluation of mine tailings or to determine viability of reclamation of a former mine site. The demand for this type of drilling has grown in recent years as new and less expensive mining techniques have made it feasible to mine previously uneconomical sites and the utilization of former mining sites has gained importance. Our drilling services require a high level of expertise and technical competence because the samples extracted must be free of contamination and accurately reflect the underlying mineral deposit, geology/hydrology and ground conditions.
Gregg’s vast experience drilling throughout the Western US and exceptional safety rating provides the confidence and trust our clients have learned to value.
Gregg constantly strives to maintain one of the highest safety ratings across California. Recently Gold Shovel Certified, Gregg is constantly improving our safety program and equipment to provide our clients the highest quality service available.
Gregg’s employees have some of the most extensive safety training available and are able to work on refineries, military sites, railroads and confined spaces.
MiningGregg Drilling offers a number of innovative solutions for mine tailings investigations. With safety as a core value of our business operations, our clients are confident in our abilities to accomplish the work in a safe and reliable manner.
- Cone Penetration Testing (tracked, amphibious, limited access and truck-mounted options available)
- Wireline CPT with rotary drilling (increased depth capability past 100m)
- Vane shear and fast-vane testing for silty materials
- Sonic drilling and continuous sampling
- Rotary drilling and sampling
Project news:We are excited to announce the completion of a 175m CPT at Pinto Valley in Arizona. This was accomplished by combining a surface push CPT to 100m and then switching to our Raptor-CPT wireline method to complete the push to depth.
Gregg works closely with our Technical Advisor, Dr. Peter K. Robertson, a world leader in stability evaluation of tailings dams. Gregg has completed CPTs and incremental drilling and CPT to extensive depths at mine sites as well as instrumentation installation.
Interested in learning more about the application of CPT or our drilling capabilities? Contact Kelly Cabal to request a introductory meeting or CPT discussion.