Since joining GSI in 2002, he has provided consulting expertise on a broad range of projects including soil and groundwater remediation, corrective action effectiveness analysis, remedial cost allocation, environmental compliance, due diligence, site investigation, risk assessment, chemical fate and transport, property redevelopment, vapor intrusion, carbon capture and sequestration, and numerous litigation matters. He holds BS degrees in Chemistry and Environmental Science, and an MS in Environmental Engineering from Rice University.

Travis is an expert in evaluating, designing, and costing remediation approaches for the treatment of soil and groundwater impacts under various state and federal regulatory programs including RCRA and CERCLA. He has designed and implemented remediation systems at sites located throughout the United States and internationally, and he has successfully worked with regulators at the local, state, and federal levels. He has also provided expert testimony and expert support for litigation projects involving various environmental matters, including risk-based assessment of chemical releases to soil and groundwater, chemical fate and transport in environmental media, vapor intrusion, remediation design and costs, treatment technologies and costs for addressing emerging contaminants such as PFAS, and cost allocation of environmental liability.

Travis has co-authored and published numerous technical papers and guidance documents on topics including remediation performance and costs, natural attenuation of chlorinated solvents, enhanced bioremediation, stray gas impacts to groundwater, and CERCLA cost allocation. He also lectures at Rice University and the University of Houston on a variety of environmental topics including site investigation techniques, design and implementation of remediation systems, and environmental cleanup under state and federal regulatory programs.