STAR uses smoldering combustion, the type of combustion that turns charcoal into ash in a barbecue grill, to quickly and efficiently destroy contaminants in subsurface environments. It is an effective treatment for a variety of different NAPLs, including coal tar, creosote, petroleum, hydrocarbons, diesel range organics, oils and greases, mineral oil, and solvents/oil mixtures.
Gavin has been the primary project manager, director, or technical lead on all STAR-related projects for the firm. He has completed dozens of treatability studies and numerous pilot tests and implementation designs using the STAR technology and is currently managing STAR projects for top-tier clients such as DuPont, Dow Chemical, Chevron, and ExxonMobil. He was also the project manager responsible for the design and implementation of the first-to-field in situ STAR pilot test, which examined the technology's ability to treat soil impacted by coal tar at a former industrial facility in New Jersey. He also is the project manager for the Chevron Thevenard Island project off the western coast of Australia, for which he designed and is testing a prototype ex situ STAR reactor.
In addition, Gavin was the project engineer on the team that developed the DNAPL Remediation Technology Screening Tool (DNAPL TEST) through a grant from the U.S. Department of Defense's Environmental Security Technology Certification Program (ESTCP). DNAPL TEST is a software-driven screening tool that aids in the identification of the optimal technology available to address plumes of chlorinated solvents at impacted sites.
Along with his work with STAR and DNAPL TEST, Gavin is the co-developer of the DNAPL3D-MT multiphase contaminant fate and transport numerical model. Gavin continues to advance the state of the practice as a frequent presenter at events and lectures focused on soil contamination and organic waste disposal.