Hollow Stem Augering and DPT Soil Sampling

EFS was contracted to perform direct push technology (DPT) soil sampling and monitoring well installation services at 26 sites located along the I-465 corridor on the west side of Indianapolis, Indiana. The project was performed under Indiana Department of Transportation (INDOT) Construction, Engineering and Inspection (CEI) services contract.

The scope of services provided by EFS included:

  • Collecting soil samples at 134 locations to a depth of 16-feet below grade utilizing a DT-6610 track-mounted direct push sampling rig
  • Installation of 100 one-inch diameter PVC temporary monitoring wells at each soil sampling location
  • Installation of five two-inch diameter PVC monitoring wells utilizing a Central Mine Equipment Model 55 (CME-55) truck-mounted drill rig
  • Installation of a 4-inch x 4-inch x 5-foot steel protective cover secured within a 2-foot x 2-foot x 1-foot concrete pad at each monitoring well location
  • On-site surveying of each monitoring well and soil boring location in accordance with INDOT regulations
  • On-site management of all drill cutting and decontamination of rinse water

EFS provided Occupational Safety and Health Administration (OSHA) 40-hour HAZWOPER-trained personnel and EFS-owned DPT and HSA drill rigs to accomplish the scope of work. All work activities were performed in accordance with OSHA, INDOT, Indiana Department of Environmental Management (IDEM) and the City of Indianapolis regulations. The project was performed on schedule and under budget within a four month period.


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