Geotechnical Drilling

Geotechnical drilling is a methodology that uses various drilling methods to test rock and/or soil samples to confirm the stability of a structure that is slated to be developed.

Drilling Methods

• Air Rotary
• Low Clearance
• Air Rotary with ODEX/TUBEX
• Hollow Stem Auger
• Remote Access

Additional Services

In support of our environmental drilling and geotechnical drilling services, Underground Services also provides the following:

• Vacuum Excavation Services
• GPR including shallow soils, concrete scanning and medium soils
• Low clearance, indoor drilling and limited access drilling services
• Injection Service involving HRC, peroxides, ORC and other custom formulations

Equipment

In order to effectively and efficiently deliver the desired drilling services to their customers, Underground Services utilizes the following equipment:

• Geoprobe® 7720 Track Mounted
• Geoprobe® 66DT Track Mounted
• Diedrich 120 High Torque Drill Rill
• Geoprobe® 420M Small (Dolly) Probe Unit
• NEW Geoprobe® 54LT Track Mounted Limited Access

Environmental Drilling Capabilities

Air Rotary Capabilities

Equipment such as the Geoprobe® 7720 facilitates the installation of both partial and shallow bedrock wells with its ability to be adapted to make it operational with a variety of air hammer and air rotary drill bits.

Manually Installed Permanent Wells, Borings and Temporary Points

Some sites cannot be accessed using traditional methods, such as truck-mounted equipment. The Geoprobe® 54LT is a diverse and compact machine that has dimensions of only 96 inches long and 34.5 inches wide. This allows it to fit easily through a standard 36-inch doorway. In addition, it is easily maneuverable, allowing it to easily be used in areas with regulatory and/or physical obstructions.

Blow Counts

The features of the Geoprobe® 7720, such as being track mounted and outfitted with a hammer with an auto drop, make the collection of blow counts easier.

Permanent Well Installation

Vapor extraction, shallow diameter groundwater monitoring points and air sparging wells can be expertly installed.

Well Abandonments

Permanently closing any residential, commercial, or industrial well can be professionally completed using our state-of-the-art equipment.

Installation of Temporary Groundwater Monitoring Points

We have the tools and expertise to install narrow-diameter PVC points to sample groundwater on a temporary basis.

Injection

Using Oxygen Release Compound (ORC) powder and ORC filter socks, as well as other products, allows passive remediation to be effectively performed.

Direct Push Sampling

By using direct push sampling, discrete location collection of samples of soil, groundwater and soil gas can be obtained to allow for fine-tuned contaminant delineation.

Permitting Requirements

Underground Services obtains all necessary well and/or boring permits before beginning operations. The required well and boring records are completed only by a licensed and experienced professional driller. Each member of our drilling crews is trained in the appropriate HAZMAT operations.

We have a diverse selection of environmental drilling tools that are designed to meet the needs of our customers. In addition, each of our drillers is OSHA-40 certified and has extensive field experience. For more information about our services and machines, contact us today by calling 800-545-1531 ext. 2103