STTI, Storage Tank Technology, Inc. is a group of dedicated and experienced professionals with over 150 combined years of experience in environmental engineering, geology, geophysics, hydrology, chemical engineering, civil engineering, environmental science, project management, regulatory affairs and compliance, hazardous materials management and tank management. STTI has Experience Founded in 1987, STTI, Storage Tank Technology, Inc., continues to be one of Colorado's leading, full service environmental and engineering consulting firm based in Western Colorado. Drawing on this experience, STTI has created a wide range of services for environmental and engineering applications and continues to stay in the forefront of our field. These services include site assessment and remediation, SPCC plans, storm water management plans, underground and above ground storage tank, and associated regulatory issues. We Specialize in soil and groundwater remediation, spill response and cleanup of petroleum and chemical releases, traffic accidents and aircraft crashes, as well as hazardous materials handling, and regulatory compliance.