Subsurface Investigation
- Soil test borings
- Rock coring
- Auger borings
- Air-track drill probing
- Test pits
- Standard penetration testing
- Cone penetrometer testing
- Shelby tube sampling
- Dynamic Cone Penetrometer Testing
- Piezometer installations
- Geophysical surveys
- Soil vapor surveys
- Falling/constant head permeability testing
- Subsurface infiltration testing
