SUBSURFACE EXPLORATION
We perform subsurfoce exploration with the aid of the following:

1. Test borings: These are accomplished using most commonly hollow stem auger method with the aid of drilling rigs. We utilize truck mounted, all terrain vehicle and track rigs. We can also utilize cable percussion rigs and occasionally rotary rigs depending on the objective of the investigation. We have the capability of boring up to 300' in soil.

2. Cone Penetrometer Testing: This method involves pushing a 1" diameter cone into the ground and measuring the resistance experienced. The resistance is measured in two ways. The first method is by mechanical means where the resistance is measured with a pressure gauge. The second method is with the aid of electrical transducers. In addition to measuring soil resistance (cone and skin friction), the cone can also be adopted to measure pore pressure and other physical properties. The results of these measurements, when combined, are used to decipher soil types and physical characteristics.

3. Rock Coring: We perform rock coring with the aid of x-ray coring machine utilizing a double tube swivel type core barrels. We have the capability of coring up to 300' into hard rock.

4. Geoprobing: We perform geoprobing with the aid of a geoprobing machine. This boring method involves continuous sampling by punching thin skin high strength plastic tubing into the soil and retrieving samples.
Geophysical Methods: We apply geophysical methods such as siesmic and electrical methods to obtain soil stratigraphy and other physical soil prosperities