Simulated groundwater discharge to a canal to evaluate whether a migrating plume could contaminate sediment by moving upward through organic-rich deposits. The modeling, conducted with MODFLOW, tested multiple scenarios, including variations in canal water levels, groundwater elevations measured in wells on either side of the canal, and variable sediment permeability. This work was part of a broader contaminated sediment project, and supported the design of a remedial strategy.

Below: Simulation cross section based on Sept 10, 2025 water levels for the case with no sediment liner, no groundwater barrier along the canal. Blue lines are potentiometric contour lines. Black lines are groundwater flow direction, and magenta dots represent groundwater particles at 0.5 year time intervals.

Testimonial

“… he impressed me with his ability to identify important details of contamination at the site, as well as build coherent conceptual models of groundwater and sediment contamination based on sound analysis and integration of multiple datasets. He was able to describe contaminant behavior at multiple scales, while at the same time focusing on the key issues and conveying the big picture. As Andrew continued to educate the Science Advisory Board at subsequent meetings, I was always impressed by his outstanding analytical and communication skills. He is sincere and very enjoyable to work with, and it is with overwhelming support that I recommend Andrew for developing sustainable approaches and solutions in the site remediation process.”

– Lisa Axe, PhD, Client’s Science Advisory Board Member and Professor, New Jersey Institute of Technology, Department of Chemical Engineering