CTI & Associates - Civil, Geotechnical, Environmental and Construction Materials Engineers

DRILLING SERVICES

CTI's Drilling Division is capable of drilling through soil and rock with boreholes with diameters up to 18-inches and depths up to 300 feet for Environmental, Geotechnical, and Water Supply projects. In addition we maintain an extensive selection of tooling options to sample and evaluate soil, rock, and groundwater conditions for the simplest to the most complex projects in a variety of drilling conditions.

Our drilling staff are 40-hour OSHA trained for working on environmental sites. Our management recognizes the need for schedule flexibility. Our equipment is well maintained and fully supplied to minimize downtime during drilling projects.

Finally, our two main objectives during drilling projects are Safety and Saving You Money.

Drilling Capabilities
• Direct Push Services
• Truck-mounted and ATV Auger Drilling
• Mud and Air Rotary Drilling
• Rock Core Drilling
• Borings and installing monitor wells up to 300 feet in depth
• Auger drilling with solid or hollow stem augers utilizing (2-inch. to 12 ¼-inch I.D.)
• Cased boring installation to seal off saturated contaminated zones
• Vertical aquifer sampling utilizing temporary stainless steel wells or screened lead auger
• Standard penetration tests (ASTM 1586)
• Penetration tests with large 3" diameter sampler
• Continuous soil sampling with hollow stem auger soil coring systems
• Undisturbed Shelby tube sampling of cohesive soil
• Field permeability testing with double or single packers
• Vane shear testing
• Geophysical testing (resistivity, seismic, gama logging)
• Specialized drilling (Installation of borehole instrumentation; slope stability, pressure transducer installations, etc.)
• Off-Shore drilling