EARTH TECH DRILLING Earth Tech Drilling Inc. combines the skills and resources of highly experienced drillers and technicians with state of the art equipment to provide Hollow Stem Auger, Mud and Air Rotary Drilling Services to meet all your environmental and geotechnical needs. We have extensive experience throughout Florida and much of the southeastern United States. Earth Tech Drilling is located in South Florida and our clients range from large national environmental consultants and major oil companies to the corner mom and pop service station owner and dry cleaners.