| Cone Penetration Testing ( CPT ) | ► More |
▪ | Piezocone Penetrometer | |
▪ | Seismic Cone Penetrometer | |
▪ | Electrical Resistivity Cone Penetrometer | |
▪ | In situ hydrocarbon screening using UVOST detector | |
▪ | In situ resistivity and hydraulic conductivity analysis | |
▪ | Seismic analysis involving shear wave velocity determination for liquefaction studies | |
▪ | Soil Remediation (ORC/HRC Injection) | |
▪ | Membrane Interface Probe (MIP) with CPT | |
![](images/Misc.%20Images/gotoarrow.gif) Go to CPT EQUIPMENT Page, For More About Gregg's Cone Penetration Testing Equipment. |
| Marine Testing | ►More |
▪ | Off-shore drilling using jack-up boats, barges or Gregg’s drill boat (the Quin Delta) | |
▪ | Sediment/soil sampling and continuous coring | |
▪ | Cone penetration testing (CPT) services | |
▪ | Offshore foundation and liquefaction studies | |
▪ | Vibracore | |
| Deep & Shallow water capabilities | |
![](images/Misc.%20Images/gotoarrow.gif) Go to MARINE EQUIPMENT Page, For More About Gregg's Marine & Over-water Equipment. |
| Groundwater Well | |
▪ | Groundwater extraction and monitoring wells | |
▪ | Vapor extraction, sparge and biovent wells | |
▪ | Nest wells, cluster wells, multipoint sampling systems | |
▪ | Well development, purging, sampling and rehabilitation | |
▪ | Pump installation and repair | |
![](images/Misc.%20Images/gotoarrow.gif) Go to WELL DEVELOPMENT EQUIPMENT Page, For More About Gregg's Groundwater Well Installation Equipment. |
| Air Vacuum | ►More |
Applications |
▪ | Underground Utility Location Verifications | |
▪ | Natural Gas Pipeline Bell Joint Leak Repair | |
▪ | Cathodic Protection Installation | |
▪ | Gas or Water Line Service Terminations or Installations | |
▪ | Manway and Valve Box Cleaning/Maintenance | |
![](images/Misc.%20Images/gotoarrow.gif) Go to AIR VACUUM EQUIPMENT Page, For More About Gregg's Air Excavation Equipment. |
| Additional Services Available | |
▪ | Well abandonment | |
▪ | Aquifer testing | |
▪ | Well/borehole video logging | |
▪ | Cathodic protection wells | |
▪ | Hydraulic fracturing | |