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Geotechnical Drilling

One common reason for geotechnical drilling is site investigation. Site investigation is conducted to determine whether or not a site will be suitable for construction. It includes drilling to remove rock and soil samples, along with drilling to evaluate soil stability and other topics of interest.


Site investigation is critical for large structures. Unsafe soil or rock conditions may lead to structural collapse, or could create a dangerous situation in an earthquake or flood. The law often requires that a site be investigated for safety before permits to build will be issued, and that ongoing safety monitoring occur to detect any changes or signs of developing problems which could pose a threat to the development.

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Services include the following:

  • Hollow Stem Auger Drilling

  • Interval Soil Sampling

  • Continuous Soil Sampling

  • Automatic Hammer Soil Sampling

  • Cal Mod Sampling

  • SPT Sampling

  • Shelby Tube Sampling

  • Piezometer Well Installations

  • Inclinometer Well Installations

  • Direct Push Technology

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