Terra Testing, Inc. (TTI), located in Washington, Pennsylvania is a privately owned corporation, specializing in geotechnical (Test Boring & Exploratory Drilling) and environmental (Monitoring & Recovering Wells) drilling since 1972. A corporation since 1981, TTI has successfully completed thousands of projects for the private sector, governmental and industrial owners. The majority of our work is in Pennsylvania, Ohio, West Virginia and Virginia, although we have traveled much further when requested by our clients.

TTI employs ten full-time drilling crews, most with over 15 years experience and each capable of handling your most difficult project. Terra Testing possesses a vast array of company and driller licenses and certifications, making us qualified above all others to handle your drilling projects safely, proficiently, and in accordance with local and state requirements.