The results of the experiment and preliminary modeling exercises are presented. In all, data to invert 31 difference tomograms were collected. A few of the tomograms are displayed in Figure 3. The tomograms provide valuable information about the locations of high-K flow paths, tracer travel times, and relative concentrations in the image plane. We used these data in preliminary model calibration to estimate hydraulic conductivity of high-K flow paths.
More rigorous inversion is the focus of ongoing work.