The mysteries below the ground can be the best friend or the worst enemy of your proposed development. Carefully examining and testing soil below your project should be left in hands of experienced professional engineers and exploration professionals who are familiar with the geologic conditions of their practice area. This data collection can take many forms depending on the complexity of the site and structures it needs to support. Traditional hollow stem auger borings and Standard Penetration Testing are still the standard of the industry for the collection of soil, rock and groundwater. The experienced drill crew is accompanied by a staff engineer, geologist or certified scientist who reports the findings to the project geotechnical engineer. Some studies may require electronic data collection such as cone penetrometer, dilatometer and pressuremeter testing. These in-situ tests can greatly reduce the cost of a foundation system for a heavily loaded structure on less than perfect soil. The analysis performed in the office is only as good as the data collected in the field during the investigation.