Data Gap Analysis and Uncertainty Visualization
Analytical data from two separate Remedial Investigations were used to model the volume of impacted soil above 1.0 µg/L . Approximately 1,200 soil samples were used to create this model. The resulting 3D ‘plume’ is shown here colored by kriging uncertainty. Areas of high uncertainty (warmer colors) are data gaps that were targeted for additional soil sampling.
All phases of work conducted on site required complex planning due to restricted access. The facility was an active manufacturing business. The final soil sampling event and the planned thermal remedy had to be completed inside one storage room. Three sonic rigs were used inside the building to install the complex angled borings for the thermal units and monitoring sensors.
This model and derivative versions were used for site characterization and data gap analysis, stakeholder and regulatory communication, and the design basis for the thermal design and implemention.
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