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LLNL Emergency Management Plan (EPlan) Rev 27 January 2022 81 The initial assessment of the EMDO may be augmented by the consequence assessment team based on EAL data evaluation from predefined incident scenarios for the facility and/or operations described in the associated EPHA. 7.1.2 Timely Initial Assessment Within about the first thirty minutes of the response, assessments should be performed leading to an estimate of the upper bound of the potential consequences of the release. If this assessment is completed in a timely manner, it may provide additional data for determining the appropriate classification of the Operational Emergency. To aid in the timeliness of information, the results should be based upon pre-calculated results and upon simplified calculation methods including computer codes and calculated values. These actions may be initiated by First Responders and may be augmented with the continuous assessment process once the consequence assessment team and ERO staffs are available. 7.1.3 Continuous Assessment Continuous consequence assessment consists of re-evaluation as additional information is gathered and emergency conditions become better defined. This process ensures that the data is available for decision-makers to ensure that appropriate protective actions are maintained and adjusted as needed. The mitigative or ameliorative progress is monitored and communicated to the affected parties. This process is similar to the timely initial assessment process, but is cyclical, with increasing levels of sophistication in the analysis tools, input accuracy, technical expertise, and field monitoring feedback. Additionally, sensitivity analyses (such as release impacts from changes in atmospheric conditions) may be performed to determine which potential indicators could trigger recasting of decisions related to protective actions. 7.2 Coordination The ED is responsible for coordinating with Federal, State, and local organizations to ensure accurate and timely consequence assessments, determinations, and coordinated responses. This coordination is outlined in PPD plans/procedures. The EOC, supported by the DOCs, can provide the expertise to locate and track hazardous materials; estimate the integrated impact of hazardous materials released onsite, offsite and into the environment; and locate and recover materials, especially those with national security implications. In the advent of a General Emergency that released hazardous materials (including radiological materials) which impacted the offsite communities, the ACFD Battalion Chief or IC at LLNL would initiate an ACFD Level 2 HazMat response. This brings an additional six ACFD HazMat technicians and a HazMat vehicle from ACFD Station 12 to supplement the nine ACFD HazMat technicians and HazMat vehicle stationed at LLNL (ACFD Station 20).