Geoprobe Systems Direct Push Drill Rigs

A GeoprobeŽ is a hydraulically-powered, percussion/probing machine designed specifically for use in the Environmental Industry.

The first Geoprobe brand machine was built for the US Environmental Protection Agency in 1988.

Soil probing techniques can be thought of as a subcategory of what are commonly referred to as "Direct Push" techniques. Direct Push refers to tools and sensors that are "pushed" into the ground without the use of drilling to remove soil or to make a path for the tool. A Geoprobe relies on a relatively small amount of static (vehicle) weight combined with percussion as the energy for advancement of a tool string.

Using a Geoprobe, you can drive tools to obtain continuous soil cores or discrete soil samples. You can drive samplers to obtain groundwater samples or vapour samples. You can insert permanent sampling implants and air sparging points. You can drive a conductivity sensor probe to map subsurface lithology. You can install small diameter monitoring wells. In fact, the Geoprobe has been used to perform many of these functions to depths of 100 feet (30m) or more where the geology and soil conditions are appropriate.

You will find Geoprobe equipment all around the world where it is used for UST investigations, property audits, Superfund sites, remediation projects, and research. Its uses are as diverse as its users.

• It's hydraulically powered either from a vehicle or an auxiliary engine.
• It uses static force and the dynamic percussion force of the GH40 or GH60 Soil Probing Hammer to advance small diameter sampling tools.
• It rearranges particles in the subsurface by application of weight and percussion to advance a tool string and produces no cuttings in the process.
• It can drill through surface pavements 12 inches (305 mm) or more in thickness and probes beneath them.
• It can be used for collecting soil cores, groundwater samples, and soil gas samples. A probing tool is also available to make continuous log of soil conductivity and probe penetration rates.

Geoprobe equipment has redefined the way sites are investigated in the Environmental Industry.
In many areas of the country, Geoprobe machines and tools have displaced traditional drilling methods as the preferred mode of collecting subsurface samples. There are numerous reasons why Geoprobe techniques have found such wide acceptance in the field. Among these reasons are the following: 

With the enclosed option, a Geoprobe is very mobile and secure from site to site. 

• No cuttings are produced during the sampling process. 
• Probing is fast: typical penetration rates are from 5 to 25 feet (2 to 8 m) per minute. 
• Mobilization is quick and economical. 
• The sampling process is fast; 20-40 sample locations per day. 
• Probing machines are easy to operate and relatively simple to maintain. 
• Probing tools create small diameter holes which minimize surface and subsurface disturbance. 
• Geoprobe machines fold compactly and store in cargo vans or truck toppers where the unit and tools can be locked and secured. 
• Geoprobe machines have lower capital costs and are more economical to operate than rotary drilling machines and the level of effort and labor required for Geoprobe operation is much less than for conventional drilling. 
• Geoprobe machines can be used to sample subsurface media including soil, groundwater, and soil gas. Geoprobe machines can also be used to retrieve geotechnical data via cone penetration testing.