We offer a wide range of Geotechnical and Environmental Drilling services, having drilled with hollow stem augers from 4" to 10.25" I.D. to depths of greater than 100' in both applications. Environmental and geotechnical projects have been drilled to these depths using traditional methods such as mud rotary, air rotary, and diamond bit rock coring. Wells have been set using 1" to 6" pipe. All personnel are HAZWOPER trained and have TWIC cards to work in high security areas. DSI also utilizes a track mounted Geoprobe for smaller, high density areas, and we are licensed in Georgia, Florida, South Carolina and Tennessee. DSI prides itself on having not only a professional, but a safe working atmosphere with our clients, from landfills to city pavement.. Give us a shot! We know that you will be satisfied.