Subsurface Investigations

Whitney & Associates owns and maintains a fleet of truck and all-terrain mounted drill rigs with automatic SPT hammers, which may be matched to particular site conditions.  Difficult or limited access sampling locations are performed utilizing our skid-steer mounted Geoprobe or specialized, hand operated sampling equipment.  Heavy earthmoving equipment for clearing and site access can also be provided upon request.

Our Drilling / Sampling Services include, but are not limited to:

  • SPT and Standard Split Spoon Sampling of Soils– ASTM D1452, D1586
  • Thin-walled Tube Sampling of Soils – ASTM D1587
  • Core Drilling and Rock Sampling – ASTM D2133
  • Design and Installation of Groundwater Monitoring Wells – ASTM D4750, D5092
  • Geoenvironmenal Exploration and Monitoring Well Installation – ASTM D5874
  • Geotechnical Exploration and Soil Sampling Utilizing Hollow-Stem Augers – ASTM D6151
  • Direct Push Soil Sampling (Geoprobe) – ASTM D6282