Subsurface/Foundation Drilling

• - residential, municipal, commercial, and industrial facilities and developments

• - energy production and transmission—power plants, substation, transmission

• lines, and gas turbines

• - coal handling—truck shops, silos, conveyor systems, truck dumps, and

• crushers

• - transportation—railroad and highway embankments and structures

• - utilities (water and sewer)—transmission, processing, and storage

• - dams—storm water runoff protection, methane water reservoirs

• - communication towers

• - storage facilities—grain elevators and fertilizer storage facilities

Slope Stability Studies

• - standard penetration borings

• - inclinometer installation

• - standpipe piezometer installation

• - vibrating wire piezometer installation

• - cone penetrometer tests

• - vane shear tests

Geologic Studies

• - geology

• - subsurface exploration and core logging

• - gravel investigations

• - shallow mineral exploration

• - stratigraphic mapping

Field Instrumentation and Monitoring

• - field resistivity testing

• - in situ permeability and infiltration tests

• - single and dual packer tests

• - dual ring infiltration tests

• - percolation tests

Pavement Analysis

• - parking lots, highways, roads, and streets

• - airport runways, taxiway, and aprons

Geotechnical Drilling Capabilities

• - hollow stem auger (3-1/4” thru 8-1/4” ID)

• - flight auger (4” thru 12” OD)

• - jet auger (5”)

• - mud rotary (3” thru 9-7/8”)

• - air rotary (3” thru 8”)

• - mud and air rotary rock coring (2” thru 5”)

• - down-hole hammer (4”)

• - direct-push (2”)

Sampling Equipment

• - 2” and 3” SPT samplers

• - 2-1/2” California samplers

• - 2” x 5’, 3” x 5’, and 4” x 5’ continuous samplers

• - 2”, 3”, and 5” Shelby tube samplers

• - 5” piston sampler

• - NQ-3, HQ-3, and PQ-3 core barrels