Terra Dynamics Incorporated (TDI) is a privately owned, environmental consulting firm with headquarters in Austin, Texas. TDI was founded in 1992 and is a Certified Small Business. TDI is a multi-disciplinary engineering, geology and consulting company specializing in injection well services for municipal, industrial and refinery applications. We provide integrated project management, engineering, field operations supervision, geological evaluation, reservoir studies, no-migration petitions (USEPA), and permitting services (State Level) in support of injection well facilities throughout the United States and international locations.