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Environmental & Geotechnical Drilling

Environmental & Geotechnical Drilling Services

ServicesPhoto1.jpgDirect Push Tooling

DT45 (dual tube drilling/sampling system)

  • DT45 tooling is 4.5 inches in diameter.
  • Each Geoprobe 8040DT is equipped with 100 feet of DT45 tooling.
  • Continuous, undisturbed soil samples are collected in 3” clear PVC tubes.  These tubes are the same diameter as 3” Shelby tubes, so regardless of soil composition, samples can be collected without the concern of collapsed and/or distorted sample tubes.
  • 2” Pre-packed, as well as standard 2” PVC monitoring well screens can be installed inside the tooling while the borehole remains cased.
  • SPT’s with a standard 2” split spoon can be completed directly through the tooling while the borehole remains cased.  The split spoon projects through the tooling into virgin soil for the test, so results are guaranteed.


Cobble And River GravelCorSample.jpg


DT35 (dual tube drilling/sampling system)

  • DT35 tooling is 3.5 inches in diameter and is designed specifically for the forces generated by the Geoprobe 8040DT.  DT35 tooling is used to penetrate deeper into tough soils than can be reached with DT45 tooling.
  • 100 feet of DT35 tooling is kept in stock for sites that may require its use.
  • Continuous, undisturbed soil samples are collected in 2” clear PVC tubes.
  • 1.5” Pre-packed and 2” standard PVC monitoring well screens can be installed inside the tooling while the borehole remains cased.


DT325 (dual tube drilling/sampling system)

  • DT325 tooling is 3.25 inches in diameter and is designed for use with our Geoprobe 6620DT.
  • 60 feet of DT325 tooling is available with the 6620DT rig.
  • Continuous, undisturbed soil samples are collected in 2” clear PVC tubes.
  • 1.5” Pre-packed and 2” standard PVC monitoring well screens can be installed inside the tooling while the borehole remains cased.
 

2.25 Inch Tooling

  • 2.25” tooling can be used for direct push sampling, or as centering rods with DT45 tooling
  • 1.75” samples can be collected in clear PVC tubes.
  • 2.25” tooling can also be used for air and mud rotary drilling.
  • 1" Monitoring well installation.


Diamond Bit Rock Coring

  • 2-3/8” Core Samples
  • Air and fluid (fluid recommended) coring options available

Air and Mud Rotary Drilling


Solid stem Augers

  • 4” and 6” Diameter


Hollow Stem Augers

  • 4.25”, 6.25” and 10.25" Diameter

Electrical Conductivity Profiling


LIF (Laser Induced Fluorescence) 3D Profiling


SP16 (Screen Point Water Sampling)


SP22 (Screen Point Water Sampling)


Soil Gas Monitoring Systems


Geoprobe GS2250 Grout Plant


Heated Trailer


Hotwater / Stream Washing


Snow Clearing


Pre-Packed Monitoring Well Screens
 (Click here for more information .pdf)

  • Ernco guarantees monitoring well installations when Consultants and Clients choose to use them, and proof of water exists at borehole depth.