Contamination

A simple guide to in-situ ground testing - in 7 parts

• Speed - Drilling and sampling, protecting samples from deterioration during transportation to the laboratory, and laboratory testing can all be time-consuming and can introduce many sources of difference from the undisturbed ground. By contrast, many in-situ tests are quite quick and give real-time information on the ground properties which is generally more representative of reality.
• Quantity - In-situ testing generally delivers more information about a profile of the ground, often with near-continuous information down the profile.
• Quality - Undertaken correctly, in-situ testing can offer much more consistent and repeatable information than routine sampling and laboratory testing.