David Reynolds is a Senior Principal Environmental Engineer based in Ontario focused on the development and implementation of groundwater remediation technologies and management strategies for complex sites with challenging hydrogeological conditions. Dave has served as project manager, director, or technical specialist on multiple site investigations, litigation support cases, remediation feasibility studies, pilot and full-scale remediation projects, and innovative technology developments and transfers.
As a specialist in the application of single and multiphase flow and transport models in both porous and fractured media, Dave's clients have included chemical manufacturers, waste recyclers, state and federal governments, major oil companies, and international mining consortia. His experience has included the development and implementation of site investigation and remediation approaches in sensitive environmental locations, the development, implementation and technical oversight of full-scale remediation programs, the discovery and development of electrokinetic-assisted in situ chemical oxidation. For example, he has recently completed the site conceptual model development, remediation feasibility study, and design of an in situ chemical reduction treatment strategy for a chlorinated ethenes and chlorinated benzenes site in fractured basalt. He has also recently completed a major site investigation and remediation project for a chlorinated ethenes, methyl isobutyl ketone, and benzene, toluene, ethylbenzene, and xylene (BTEX) site where a portion of the remedial strategy involved the design and installation of the first full-scale sequenced denitrification-zero valent iron permeable reactive barrier in the world.
Dave is the co-inventor and patent holder for electrokinetic in situ chemical oxidation and electrokinetic in situ chemical reduction for the rapid and effective treatment of persistent contamination in low permeability and other hydraulically inaccessible regions of the subsurface. As part of a multi-agency research program, Dave managed the first field trials and technology demonstrations of this promising new remedial technique at sites in Canada and Europe.
To advance the state of the practice, Dave has conducted short courses and technical lectures on the application of advanced remediation technologies to practitioners and regulators in North America, Europe, and Australia. He is the author or co-author on numerous peer-reviewed technical publications on environmental topics. Dave maintains an active research interest through on-going relationships with the University of Western Australia and the University of Western Ontario.