The team at QISI / Applus RTD has developed a subsurface exploration group that includes drilling for geotechnical and groundwater/soil contamination investigations.  Experienced drilling crews with all-terrain and truck mounted drilling rigs are capable of fulfilling a wide variety of needs that include: low overhead clearance drilling, hollow stem augering, mud and air rotary drilling, SPT, Shelby tube sampling, diamond rock core drilling, monitoring and observation well installation, well development and well decommissioning.