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==About the Contributor==

==About the Contributor==

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Dr. Divine, National Technical Expert and Vice President at Arcadis, has 25 years of experience characterizing and remediating chlorinated solvents and other contaminants utilizing a wide range of technologies, including ''in situ'' bioremediation, chemical oxidation, zero valent iron (ZVI), air sparging, cosolvent/surfactant flushing, and dynamic groundwater recirculation. Dr. Divine has particular expertise in the design and analysis of applied tracer tests and has been directly involved in the design, implementation, and analysis of more than 100 tracer tests.  Dr. Divine has developed and field-tested numerous innovative technologies, including subsurface nuclear magnetic resonance logging (NMR), point velocity probes (PVPs), passive diffusion samplers for dissolved gases, partitioning interwell tracer tests (PITTs), LNAPL mobility measurement with tracers, cyclodextrins for DNAPL source treatment, and Thermal In Situ Sustainable Remediation (TISR<sup><small>SM</small></sup>) for enhancing degradation rates in source zones. He is also the co-inventor of the Horizontal Treatment Well (HRX Well<sup><small>&reg;</small></sup>), the Min-Trap™ reactive mineral sampler, and the Sentinel™ passive PFAS sampler.

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Dr. Divine, National Technical Expert and Senior Vice President at Arcadis, has 30 years of experience characterizing and remediating per- and polyfluoroalkyl substances (PFAS), chlorinated solvents, metals, and petroleum hydrocarbons utilizing a wide range of technologies, including in situ bioremediation, chemical oxidation, zero valent iron (ZVI), air sparging, cosolvent/surfactant flushing, and dynamic groundwater recirculation. His expertise includes site characterization and conceptual site model development, contaminant transport and fate, and remediation system design and operation. He has co-authored about 80 scientific papers, holds seven granted and pending patents related to characterization and remediation, and serves as an Associate Editor for Groundwater Monitoring & Remediation and Remediation Journal. Dr. Divine has authored approximately 85 scientific papers and holds 7 issued and pending patents. He has served as Principal Investigator on numerous SERDP and ESTCP research and demonstration projects and has developed, field-demonstrated, and commercialized numerous innovative technologies. He is also the co-inventor of the In Situ Engineered Mineral Sorption (ISEMS™) PFAS treatment technology, the Horizontal Treatment Well (HRX Well®), the Min-Trap™ reactive mineral sampler, and the PassiveX™ passive PFAS sampler.

==Article Contributions==

==Article Contributions==

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Craig E. Divine, Ph.D., PG