Direct-push platforms have gained widespread acceptance in the environmental industry over the past decade because of their versatility, relatively low cost, and mobility. Using the weight of the truck in combination with a hydraulic ram or hammer, a tool string is pushed into the ground.

Because of their methods of operation, direct-push systems provide some unique advantages when collecting soil and soil-gas samples.

In particular, direct-push systems are quicker and more mobile than traditional drill rigs.

Sampling and data collection are faster, reducing the time needed to complete an investigation and increasing the number of sample points that can be collected during the investigation.

In spite of its advantages, soil and soil-gas sampling using direct-push technologies does have limitations that are specific to the direct-push platform.

Because of the nature of direct-push drilling, investigators may be unable to collect samples from consolidated materials, and, in general, direct-push rigs are limited to depths of less than 100 feet. As a result, soil or sediment sampling in areas with significant soil calcification is problematic.

As a result, soil or sediment sampling in areas with significant soil calcification is problematic.