Directed Technologies Drilling Incorporated (DTD)

Horizontal-Directional Sampling for Environmental and Geotechnical Studies

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Horizontal Directional Drilling (HDD) provides a viable means to collect environmental samples from locations that are inaccessible to vertical drill rigs, direct-push methods, or sonic methods, due to surface infrastructure or natural barriers. Using directional drilling techniques, DTD can collect samples from locations that are hundreds of feet away from the bore entry. This opens a new realm of possibility for collecting samples beneath existing source areas that have already been capped, or from beneath landfill liners, sensitive wetlands, or other barriers that preclude conventional sampling. DTD has developed custom sampling devices, and has developed experience on intensive sampling projects, collecting dozens of samples in bores over 600 feet in length. For more information, contact Mike Lubrecht, Senior Geologist, at DTD.

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