ARA experts have met with critical base personnel to assess the physical layout, critical utilities and infrastructure, toxic materials on base, current threats, emergency management procedures, and memoranda of understanding in place. To establish potential TIC/TIMs inventories and threats external to the base, ARA has interviewed local emergency planning committee (LEPC) representatives, and local fire and police departments, and reviewed data from surrounding businesses/industries.
Based on these meetings, ARA has developed a reduced list of potential TIC/TIM threats internal and external to a base and employed the Facility Security Risk Management methodology to determine the threats posing the highest risks. Four scenarios were selected for further modeling with the software tool Hazard Prediction and Assessment Capability (HPAC), which displays a plume model with potential agent dispersal and concentrations overlaid on base maps.