Queen's University, Department of Civil Engineering
Dr. Mumford is an Associate Professor in the Department of Civil Engineering at Queen’s University. He received a Bachelor’s degree in Environmental Engineering and Master’s degree in Civil Engineering from the University of Waterloo, and a Ph.D. in Civil Engineering from McMaster University. His research is focused on the study of multiphase flow in porous media and its application to the remediation of non-aqueous phase liquids in soil and groundwater, with particular specialization in the behaviour of gases in contaminated groundwater systems. His research includes high-resolution laboratory experiments coupled with process-based numerical modelling of multiphase flow and reactive transport.
Using Virtual Data Sets to Evaluate Approaches for Conceptual Site Model Development and Remediation Design at DNAPL-Impacted Sites
The SERDP DIVER (Data Information Value to Evaluate Remediation) project has developed a series of three virtual data sets (VSDs), which represent hypothetical DNAPL-impacted sites of varying complexity. Decision maker (DM) teams, made up of some of the industry’s most experienced practitioners, conducted virtual investigations of these VSDs, using post-processing algorithms designed to mimic a variety of investigation tools and sample types. Conceptual site models (CSMs) developed by the DM teams, based on their virtual investigations, were compared to true values known from VSD simulations to compare strategies, refine best practices and establish expectations for the accuracy of CSMs for DNAPL-impacted sites. In addition, DM teams submitted enhanced in-situ biodegradation (EISB) designs that were implemented using the numerical model DNAPL3D-RX, and their performance was evaluated to identify key CSM attributes. Results of the virtual investigation and remediation, as well as analyses related to the value of information will be discussed.