Drilling / Rock Coring

•   Mud and wash rotary drilling 2-15/16” to 12” diameter
•   2-1/4” to 12-1/4” diameter hollow-stem auger drilling
•   Rock coring with core diameters NQ (1.9”), HQ (2.5”), PQ (3.3”), and 4”
•   Angle drilling
•  Thin-wall masonry core drills with continuous drilling up to 10 feet

Testing

•  Pressuremeter testing
•  Vane shear testing
•  Cone penetration testing
•  Packer testing – single and double packers of multiple diameters

Specialty

• Crane lifts to difficult locations such as steep slopes, river banks, dams, and interior building locations
• Portable metal platform with adjustable supports

Soil Sampling

•  Soil sampling with 2”, 2.5”, 3”, 4”, and 5” diameter split spoons
•  Shelby tube soil sampling
•  Osterberg 3” diameter sampler
•  Giddings, Lucas, and Pitcher Barrel samplers
•  Continuous hollow-stem sampling
•  Hydropunch sampling
•  Geoprobe sampling (subcontracted)

Installation

•  Soil and rock monitoring wells and piezometers
•  Pneumatic and vibrating wire piezometers
•  Double- and triple-cased wells
•  Well sealing and pressure grouting
•  Vapor extraction points
•  Gas vent wells
•  Recovery wells
•  Utility Settlement Indicators
•  Inclinometers

Fleet / Equipment

•  Two all-terrain drill rigs: CME-850 – track mounted, D-120 – rubber balloon tires
•  Two truck-mounted drill rigs: Diedrich D-50 and Mobile B-61
•  Barge for dam, river, and lake drilling (22.5’x11.5’x3.9’, draft 2-3 feet)
•  Propane portable skid rig D-25
•  Air-driven portable skid rig Acker-1226
•  Skid-mounted high capacity grouter
•  Nine support vehicles, from pickup trucks to semi-truck