Laserfiche WebLink
LLNL Emergency Plan <br />Rev-23 <br />October 2017 <br /> <br /> 67 <br />Of these types, Hazardous Materials Operational Emergencies may be further classified as Alert, <br />Site Area Emergency, or General Emergency. Safeguards and Security Operational Emergencies <br />may be classified based on the potential for a release of hazardous materials and the projected <br />consequences. <br />5.1.2 Hazardous Materials Operational Emergency Classifications <br />Hazardous Materials Operational Emergencies may be classified in order of increasing severity. <br />Alert: A condition in which an actual or potential substantial degradation in the level of control <br />over hazardous materials exists. <br />Site Area Emergency: A condition in which the radiation dose from any release of radioactive <br />material, or concentration in air from any release of other hazardous material, is expected to <br />exceed the applicable Protective Action Criterion at or beyond the facility boundary. The <br />Protective Action Criterion is not expected to be exceeded at or beyond the site boundary. <br />General Emergency: A condition in which the radiation dose from any release of radioactive <br />material or a concentration in air from any release of other hazardous material is expected to <br />exceed the applicable Protective Action Criterion at or beyond the site boundary. <br />5.2 Emergency Action Levels/Protective Action Sheets <br />5.2.1 Emergency Action Levels Description <br />Emergency Action Levels (EALs) are specific, pre-determined, observable criteria used by the <br />EMDO to recognize and identify that the incident is an Operational Emergency. Once this <br />discovery is made, EALs are used by the EMDO to help determine appropriate protective actions <br />for onsite personnel and protective action recommendations for offsite populations. For each <br />facility for which an Alert, Site Area Emergency or General Emergency is defined, the EALs <br />describe on-scene indicators, list the distance to the nearest site boundary, and describe the <br />conditions and indicators upon which the classification is based, including the maximum <br />distances at which the Protective Action Guide (PAG) or sixty-minute Acute Exposure Guideline <br />Level (AEGL60-2) values would be observed. EALs are developed for potential Operational <br />Emergencies, including radiological and non-radiological releases, terrorism and sabotage <br />(malevolent acts), fires, explosions and natural phenomena. <br />EALs are developed from scenario input data and results provided in facility-specific EPHAs. <br />Trigger points for hazardous material EALs are specific initiating conditions/indicators, such as <br />alarms and/or direct observations of spills or fires that are based on the potential to release <br />accident-specific source terms analyzed in EPHAs. The EPHAs also provide a quantitative <br />estimate of the consequences of each EAL at specific receptor locations, such as the facility <br />boundary, site boundary, and the maximum distance at which the PAG or AEGL60-2 is exceeded. <br />This last estimate allows determination of the emergency classification associated with the <br />release.