George Washington’s Mount Vernon’s Threat and Hazard Identification and Risk Assessment, Security Assessment, Comprehensive Emergency Management Plan and Active Shooter Training and Tabletop Exercise


October 2017 to 2019


Mario Bignotti, Director of Security

Address: P.O. Box 110, Mount Vernon, VA 22121

Phone: 703-799-8681



The Olson Group, Ltd. was contracted to perform a comprehensive Threat and Hazard Identification and Risk Assessment (THIRA), Security Assessment, develop comprehensive emergency plans, and develop and conduct active shooter training and exercises.  The project was divided into three main phases:

Phase I – addressed the basic Threat and Hazard Identification Risk Assessment as they relate to the security concerns of the Mansion and Core Buildings (Servants Hall Kitchen) and surrounding grounds.

Phase II – examined the broader scope of Threat and Hazard Identification and Risk Analysis (THIRA) for the remaining facilities and property.

Phase III focused on the development of a Comprehensive Emergency Management Plan (CEMP) for George Washington’s Mount Vernon focused on the most likely threats and vulnerabilities identified in Phases I and II of the project.  As part of this phase, staff and volunteers received training on the new plans and procedures, culminating with a Tabletop Exercise (TTX) to reinforce the training and use of the CEMP. OGL also developed customized active shooter training and an exercise to reinforce the training.

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U.S. Department of Homeland Security Federal Emergency Management Agency Emergency Management Institute Independent Study Curriculum Support
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New Kent County, VA Emergency Operations Plan (EOP), Rail Hazard Response Annex (Annex), & Threat and Hazard Identification and Risk Assessment (THIRA)