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  • Hollow-Stem Augering (2.25" to 12.25" ID)
  • Rotary Wash (3" to 16")
  • Geotechnical Sampling
  • Shelby Tube & Split-Spoon Sampling
  • Continous Samplers
  • Automatic Hammers
  • Multi-Cased Installations
  • Monitoring Well Installations

  Geotechnical Sampling               Diedrich D120                      Diedrich D120                        
                                              Geotechnical Mud Rotary             AutoHammer                

   Diedrich D120 Shelby                Diedrich D120                     Diedrich D120
        Tube 5-inch                                                                  Geotechnical Auger