DOE G 151.1-1 V3-3, Categorization and Classifications of Operational Emergencies
This volume defines types of operational emergencies. Canceled by DOE G 151.1-4.
Superseded By:
DOE G 151.1-4, Response Elements on Jul 11, 2007
Version history and related documents
Document text
Text extracted from the attached file. Refer to the original document for the authoritative version.
Section 1
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3. CATEGORIZATION AND CLASSIFICATION
OF OPERATIONAL EMERGENCIES
3.1 Introduction
To allow the rapid dissemination of information about an Operational Emergency so that
proper actions to respond to the emergency can be initiated at all levels of DOE, a system
of categorization and classification has been established. An Operational Emergency is
categorized according to the following types:
• Health and Safety Operational Emergency
• Environmental Operational Emergency
• Security and Safeguards Operational Emergency
• Offsite DOE Transportation Operational Emergency
• Hazardous Materials Operational Emergency.
If the emergency is a Hazardous Materials Operational Emergency, it is then classified
according to the following options:
• Alert
• Site Area Emergency
• General Emergency
In addition to the ensuring rapid communications, the primary focus of the classification
process for the hazardous materials events is the initiation of preplanned local responses
and the protection of the local site and offsite populations.
The process of categorizing events as Operational Emergencies and of classifying
hazardous material events was created to ensure rapid recognition of emergency
conditions and timely response. The emergency categorization/classification system
represents a set of pre-approved decisions, agreed to by senior management and state and
local officials, that allows onsite supervisory personnel to make rapid decisions affecting
personnel, facilities, and resources in response to an emergency. The authority to initiate
emergency communications and commit resources often rests with upper management.
During the onset of an emergency, adherence to the normal management approval
processes may delay the initiation of response actions and mobilization of resources. For
the system to be effective, the responsibility and authority for initial event categorization
and classification (for hazardous materials events) should be vested in on-duty supervisory
personnel who are close to the problem and who are familiar with the facility.
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On August 27, 1997, the Secretary of Energy issued a directive on “Timely Notification of
Emergencies and Significant Events," which emphasizes the importance of prompt
recognition of significant events and the timely notification of these events to all relevant
parties. Two new elements were included in the directive: 1) notification of state, local,
and tribal officials and the Headquarters Operations Center even if the applicability of
standing guidance is in question for a specific event; and, 2) implementation of a new
threshold of reporting for non-emergency significant events.
Hazardous Materials Program. Operational Emergencies involving the release of
hazardous materials on or from DOE sites or facilities are differentiated according to their
severity for the purpose of rapidly implementing groups of response activities and
notifications that are commensurate with the degree of hazard presented by the event.
Emergency Action Levels (EALs) are criteria used to classify such hazardous material
emergencies.
Section 2
This chapter describes the basic principles of event categorization and classification of
Operational Emergencies, the relative severity of events which fall into each hazardous
materials emergency class, and the transition from normal operations to event
categorization and classification. Use of the DOE M 232.1 Occurrence Reporting criteria
in the Operational Emergency recognition and decision-making process, or as an
alerting/prompting tool, is discussed. The use of protective action criteria for radiological
and non-radiological releases to establish hazardous materials emergency classes is also
discussed. Guidance is provided for developing criteria, known as EALs, used to detect
and recognize hazardous material events and assign them to specific emergency classes.
Appendix B provides examples for the implementation of event classification.
Base Program. Each DOE site/facility is required to produce a Hazards Survey to
identify the generic emergency events and conditions to be addressed by the DOE
Comprehensive Emergency Management System. This survey can be used to further
define those events and conditions which should be categorized as Operational
Emergencies, according to the Order. Base Program sites/facilities are required to identify
these Operational Emergencies and develop criteria for categorizing them quickly.
This process of categorizing Operational Emergencies and developing criteria is addressed
in this chapter, Section 3.2. The two Appendices provide additional guidance for the Base
Program site/facility in terms of developing the criteria and integrating the criteria with
normal operating procedures.
3.2 Recognition and Categorization of Operational Emergencies
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Operational Emergencies are unplanned, significant events or conditions that require time-
urgent response from outside the immediate affected site or facility. Operational
Emergencies may involve degradation of personnel health and safety, the environment,
security and safeguards, or the release or loss of control of hazardous materials. The
Order gives a number of examples of events and conditions that are to be categorized as
Operational Emergencies.
Although it is not intended that facilities/sites develop detailed and quantitative
categorization criteria for each type of Operational Emergency described in the Order,
some planning and preparation will be needed to ensure that events meeting the Order
descriptions are promptly recognized and categorized. For some types of Operational
Emergencies, facilities and sites may choose to develop facility/site-specific criteria, based
upon the results of their Hazards Survey and Hazards Assessment, to aid decision making.
Others may use the information presented in this section to interpret observed conditions
directly against the Order descriptions. In either case, responsible personnel should be
trained to recognize events or conditions that require rapid assessment and categorization
decisions. A variety of techniques may be used to integrate this recognition/decision
process with existing operations, management, emergency response, and reporting
activities (e.g., existing occurrence reporting and hazardous materials
recognition/classification procedures).
The following sections describe how the examples of Operational Emergency events or
conditions given in the Order should be used to develop facility and site procedures to
support recognition and categorization of events.
Section 3
3.2.1 Health and Safety
Events or conditions that represent, cause, or have the potential to cause serious health
and safety impacts to workers or members of the public are Operational Emergencies.
(1) Discovery of radioactive or other hazardous material contamination from past
DOE operations that is causing or may reasonably be expected to cause
uncontrolled personnel exposures exceeding protective action criteria.
Discussion. This example applies to the discovery of contamination that poses a
serious near-term threat to people. An Operational Emergency of this type has
two defining characteristics. First, without prompt and effective action, it is likely
that people will continue to be exposed to the contamination. Second, the acute
dose or exposure to individuals who come in contact with the contamination will
be about the same as that for which protective actions are usually planned when
dealing with environmental release of hazardous materials. The example applies to
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any newly discovered onsite or offsite contamination area for which access control
was not immediately established, or where personnel may continue to gain access
without DOE/contractor knowledge while the magnitude and extent of the
contamination is being characterized. Minimum severity thresholds for this
condition may have one of several bases, as follows:
! For radioactive material in general, a multiple of the Unusual Occurrence
criterion for offsite radioactive contamination may be used.
! For gamma emitters, dose conversion factors can be used to determine the
contamination level that would result in a dose of 1 rem effective dose
equivalent (EDE) to a person exposed to the contaminated area for a short
period of time (for example, a week or less).
! For radionuclides that pose an inhalation hazard, inhalation dose factors
and an assumed average resuspension factor can be used to estimate the
surface contamination level that corresponds to a 1 rem dose commitment
total effective dose equivalent (TEDE) for a short period (i.e., a week or
less) of exposure to the contaminated area.
! For nonradioactive hazardous materials, an assumed average resuspension
factor can be used to estimate the surface contamination level that
corresponds to an ERPG-1 (or equivalent) concentration in the air above
the contaminated area.
Methods. Using bases such as those cited above, facilities that store or process
significant quantities of hazardous materials (or have done so in the past) may
select a “contamination” criterion on which they will declare an Operational
Emergency. Facilities that have potential for contamination with several hazardous
materials may develop simple conversion factors, formulae, or tables to permit
rapid evaluation of measured contamination values against protective action
criteria. Any discovery of high levels of contamination will typically result in
technical assessments and internal notifications preliminary to initiation of the
Occurrence Report required by DOE M 232.1-1, under either Group 1 (Facility
Condition - radioactive contamination) or Group 2 (Environmental - hazardous
material contamination). Therefore, internal procedures and training related to
radiation protection and industrial hygiene (e.g., directions for handling of unusual
survey results) and occurrence reporting can be used to alert safety/health and
occurrence reporting personnel to the requirement for an Operational Emergency
declaration and expedited notifications, if contamination exceeds certain levels that
are well above the unusual occurrence values.
Section 4
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(2) An offsite hazardous material event not associated with DOE operations that is
observed to have or is predicted to have an impact on a DOE site such that
protective actions are required for onsite DOE workers.
Discussion. This example applies to any release of hazardous material from
external sources that requires onsite personnel to evacuate or take shelter. Such
releases may originate from fixed facilities or transportation activities outside the
site boundaries; from non-DOE transportation accidents on roads, railroads, or
rivers that traverse the site; or from private industrial activity being conducted on
the DOE site. However, if hazardous materials from the offsite event could lead to
loss of control over onsite DOE hazardous materials, then the event should be
classified on the basis of the potential onsite release. (See Section 3.3.)
The need for onsite protective actions may be based on measurements or
consequence projections by site personnel or on a recommendation from the on-
scene Incident Commander, offsite emergency management authorities, or the
responsible carrier. Any significant concentration of DOE and/or contractor
personnel should be considered “onsite” for purposes of this example, even if they
occupy a leased offsite building or facility. Such offsite buildings should be
considered if the occupants have principle site operations and management
responsibilities. Offsite subcontractor offices, hotels/motels, company recreational
areas, and conference facilities need not be included.
Methods. Because hazardous material releases may originate from any
transportation artery and many industrial facilities, this condition applies to every
site and facility occupied by DOE or prime contractor staff. Local area, site, and
building emergency procedures, and associated building emergency warden
training, may be used to help ensure recognition of this situation as an Operational
Emergency requiring prompt reporting. Although DOE M 232.1-1 does not
explicitly identify offsite hazardous materials events impacting DOE sites/workers
as reportable occurrences, local occurrence reporting procedures, guidelines, and
training of occurrence reporting personnel can be used to help ensure recognition.
Because events involving onsite releases of hazardous material are classified in
accordance with Section 3.4 of this guidance, emergency classification (EAL)
procedures, which are likely to be consulted for any hazardous material event with
impact on people, can be used to identify this condition as an Operational
Emergency not requiring classification.
(3) An occurrence that causes or can reasonably be expected to cause significant
structural damage to DOE facilities, with confirmed or suspected personnel
injury or death or substantial degradation of health and safety.
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Discussion. This example applies to events such as earthquakes, tornadoes, fires,
explosions, and vehicle accidents that cause significant structural damage to DOE
or contractor facilities, such that death or injury to personnel might reasonably be
expected. Damage to the structure does not need to be total or exceed any
particular cost threshold, nor does death or injury need to be confirmed. The
threat to personnel safety in conjunction with structural damage is the key to this
example. Accordingly, a fire that completely destroys a building that is abandoned
(or is otherwise believed not to be occupied) is not an Operational Emergency,
whereas the collapse of the roof of a normally occupied building during working
hours is an Operational Emergency, even if no death or injury of the occupants is
initially evident.
Section 5
Methods. Any facility that is routinely occupied by personnel could be subject to
such events. Because initial response to an event of this nature is likely to be
carried out by local fire and rescue organizations, building emergency/fire plans,
management notification lists, and incident command training can be used
effectively to ensure recognition. Local occurrence reporting guidelines and
training of occurrence reporting personnel related to Group 1 (Facility condition -
facility evacuation) or Group 3 (Personnel safety - injuries) may also be used to
prompt a review of the site-specific criteria for categorizing a building evacuation
as an Operational Emergency.
(4) Any facility evacuation in response to an actual occurrence that requires time-
urgent response by specialist personnel, such as hazardous material responders
or mutual aid groups not normally assigned to the affected facility.
Discussion. This example applies to any normally occupied DOE or contractor
facility. The event or condition that requires evacuation and time-urgent response
by specialist personnel may be a fire, hazardous material spill, or
safeguards/security incident. An event that requires response only by specialist
personnel assigned to the affected facility, such as the building security staff, is not
an Operational Emergency. Neither is a precautionary evacuation and response by
specialist personnel that does not involve any significant threat to health, safety, or
security, such as a hazardous materials team investigating a report of an unusual
odor or firefighters responding to a reported smell of smoke without any other
indication of fire. However, if the responding specialist personnel find a condition,
such as a fire or hazardous material spill, that will require more than an hour or so
of corrective action or cleanup before the facility can be reoccupied, the condition
should be categorized as an Operational Emergency. If release of significant
quantities of hazardous material to the environment occurs or is threatened, such
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events are Operational Emergencies requiring classification as described in
Section 3.3.
Methods. Because response from outside the facility may be by fire/rescue,
HAZMAT, security, or other specialist personnel, the procedures for those
responses can be used to help ensure that the condition is recognized and
categorized as an Operational Emergency. Local occurrence reporting guidelines
and training of occurrence reporting personnel related to Group 1 (Facility
condition - facility evacuation) or Group 3 (Personnel safety - injuries) may also be
used to prompt review of the site-specific criteria for categorizing a “facility
evacuation” Operational Emergency.
(5) An unplanned nuclear criticality resulting in actual or potential facility
damage.
Discussion. Any unplanned nuclear criticality is an Operational Emergency
because it represents major failures of safety systems and practices and has the
potential to cause facility damage and release of radioactive material. Criticality
events that result in release of significant quantities of radioactive material to the
environment are Operational Emergencies requiring classification as described in
Section 3.3.
Section 6
Methods. Only facilities dealing with fissionable materials in quantities
approaching a minimum critical mass need to consider this potential condition.
Local occurrence reporting guidelines and training of occurrence reporting
personnel related to Group 1 (Facility condition - nuclear criticality safety and loss
of control of radioactive material), Group 2 (Environmental - radionuclide
releases) and Group 4 (Personnel radiation protection - radiation exposure) can be
used to help ensure timely recognition and categorization of criticality events.
Because most inadvertent criticalities will be classified as Alert or higher due to
actual or potential radioactive releases, emergency classification (EAL) procedures
and emergency response procedures should identify the specific conditions under
which a criticality is to be categorized as an Operational Emergency not requiring
classification.
(6) Any non-transportation-related mass casualty event.
Discussion. This example applies to events that result in numbers of deaths or
injuries that significantly exceed the Unusual Occurrence threshold for
occupational illness/injuries. The term “mass casualty” is defined by a number and
severity of casualties that exceeds the readily available treatment capability.
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Indicators of this level of casualties include the need to exercise triage at the event
scene, request ambulances and medical personnel from offsite, or dispatch victims
to multiple medical facilities to ensure adequate and timely treatment.
Methods. Emergency planners for facilities and sites may elect to establish a local
definition for “mass casualty” based on such factors as available emergency
medical resources and distance to treatment centers. (See Volume IV, Chapter 3,
for a discussion of the characteristics of a mass casualty event that can be used to
formulate such a definition.) Emergency medical responder and incident command
training and procedures can use that definition to ensure timely recognition and
categorization of an Operational Emergency. Since any event that has the
potential to be a “mass casualty” will almost certainly be recognized as a
potentially reportable occurrence, local occurrence reporting guidelines and
training materials for occurrence reporting personnel related to Group 3
(Personnel safety - occupational injury/illness) can be annotated with the local
definition for “mass casualty.”
3.2.2 Environment
Events or conditions that represent, cause, or have the potential to cause serious
detrimental effects on the environment are Operational Emergencies.
(1) Any actual or potential release of hazardous material or regulated pollutant to
the environment, in a quantity greater than five times the Reportable Quantity
(RQ) specified for such material in 40 CFR 302, that could result in significant
offsite consequences such as major wildlife kills, wetland degradation, aquifer
contamination, or the need to secure downstream water supply intakes.
Section 7
Discussion. The specified release of hazardous material or regulated pollutant to
the environment is an Operational Emergency if it results in actual or potential
offsite consequences of the type and magnitude specified in the example.
Although the Order refers to “offsite consequences,” many DOE sites contain
sensitive and valued “onsite” environments. Examples include wetlands, streams,
rivers, endangered species of wildlife, lakes, and aquifers. Such sensitive areas
should be considered if contamination would generate response and interest
equivalent to similar contamination of offsite areas. To facilitate recognition and
categorization, sites and facilities should identify hazardous material storage and
potential release locations, including locations on transportation routes, that could
produce impacts such as those described in the example. This will allow releases
to be categorized on the basis of the material, quantity, and release location rather
than on field/in situ measurements of the impact, which may require days or weeks
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to quantify. Specific material release scenarios that, in addition to causing
environmental degradation, have the potential to cause acute airborne exposure
hazards to people are Operational Emergencies requiring classification as discussed
in Section 3.3.
Methods. This condition applies to facilities/sites for which the Hazards Survey
has identified quantities of hazardous materials or regulated pollutants that could
cause significant damage to the environment. Plans, procedures, and training
related to environmental spill response and reporting can be used to ensure
recognition of the need to categorize specific releases as Operational Emergencies.
Local occurrence reporting guidelines and training of hazardous waste
management and occurrence reporting personnel related to Group 2
(Environmental - Release of hazardous substances/regulated pollutants/oil) can
also be used to prompt a review of the site-specific criteria for categorizing such
releases as an Operational Emergency.
(2) Any release of greater than 1,000 gallons (24 barrels) of oil to inland waters;
greater than 10,000 gallons (238 barrels) of oil to coastal waters; or a quantity
of oil that could result in significant offsite consequences (e.g., need to relocate
people, major wildlife kills, wetland degradation, aquifer contamination, need
to secure downstream water supply intakes, etc.) [Oil as defined by the Clean
Water Act (33 U.S.C. 1321) means any kind of oil and includes petroleum.].
Discussion. Any release of oil exceeding the stated quantities or any smaller
release that produces or is likely to produce offsite consequences of the type and
magnitude specified is to be categorized as an Operational Emergency. To
facilitate categorization, sites and facilities should identify oil storage and potential
release locations, including locations on transportation routes, that could produce
impacts such as those described in the example.
Methods. This condition applies to facilities/sites for which the Hazards Survey
has identified the potential for release of more than 1000 gallons to inland waters,
10,000 gallons to coastal waters, or any release that could result in significant
offsite consequences. Plans, procedures, and training related to environmental
spill response and reporting can be used to ensure recognition of the need to
categorize specific releases as Operational Emergencies. Local occurrence
reporting guidelines and training of occurrence reporting personnel related to
Group 2 (Environmental - Release of hazardous substances/regulated
pollutants/oil) can also be used to prompt a review of the site-specific criteria for
categorizing oil/petroleum releases as Operational Emergencies.
Section 8
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3.2.3 Security and Safeguards
Events or conditions that represent, cause, or have the potential to cause degradation of
security or safeguards conditions with actual or potential direct harm to people or the
environment are Operational Emergencies.
(1) Actual unplanned detonation of an explosive device or a credible threatened
detonation resulting from the location of a confirmed or suspicious explosive
device.
Discussion. Detonation or discovery of an explosive device at any DOE or
contractor facility should be categorized as an Operational Emergency. However,
in some cases, the location of the explosive device and its size may need to be
considered. For example, a common firecracker or rifle cartridge should not be
considered an “explosive device” unless the conditions under which it is found or
exploded suggest deliberate placement and destructive intent. Discovery or
credible threat of any explosive device in a location where it clearly threatens DOE
property or site personnel is an Operational Emergency. Placement or detonation
of a device that causes or threatens a release of hazardous material with the
potential for acute airborne exposure hazards to people is an Operational
Emergency requiring classification as discussed in Section 3.3.
Methods. All DOE and prime contractor facilities and sites are subject to this
type of malevolent act. Security plans and security response procedures may be
used to identify the criteria for declaration of an Operational Emergency in terms
of the security/safeguards status or response level triggered by an event meeting
these descriptions. Local occurrence reporting guidelines and training of
occurrence reporting personnel related to Group 5 (Safeguards and Security -
Criminal Acts) can be used to prompt a review of the site-specific criteria for
categorizing explosive device events as Operational Emergencies.
(2) An actual terrorist attack or sabotage event involving a DOE site/facility or
operation.
Discussion. An armed assault involving a DOE site, facility, or operation might be
directed at an individual DOE or contractor employee, at gaining access to
valuable property or classified material, or at causing damage to the DOE
property. Therefore, the term “terrorist attack” should be interpreted broadly; any
armed assault that takes place at a DOE or contractor facility should be
categorized as an Operational Emergency because the motivation for and
objectives of the assault are not likely to be known until long after the fact.
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Exceptions to this generalization might include violent confrontations between
individuals or simple acts of vandalism that take place incidentally on the DOE or
contractor premises. Any confirmed attempt to sabotage facilities or equipment
should be categorized as an Operational Emergency, even if it initially appears to
be unsuccessful, because of uncertainty concerning other undiscovered, but
related, potentially destructive acts. If these destructive acts impact the control
over, or result in the release of significant quantities of hazardous materials, they
are Operational Emergencies requiring classification as discussed in Section 3.3.
Section 9
Methods. All DOE and prime contractor facilities and sites are subject to this
type of malevolent act. Security plans and security response procedures may be
used to identify the criteria for declaration of an Operational Emergency in terms
of the security/safeguards status or response level triggered by an event meeting
these descriptions. Local occurrence reporting guidelines and training of
occurrence reporting personnel related to Group 5 (Safeguards and Security -
Criminal Acts) can be used to prompt a review of site-specific criteria for
categorizing such terrorist/sabotage events as Operational Emergencies.
(3) Kidnaping or the taking of hostage(s) involving a DOE site/facility or
operation.
Discussion. Kidnaping of a DOE site employee or family member or the taking of
hostages may be undertaken to extort money, materials, or concessions from the
DOE or its contractor. The DOE, its contractors, and their employees may come
under great pressure to meet a perpetrator's demands, some of which might have
safety, health, or environmental implications. Such occurrences should not be
categorized as Operational Emergencies if the kidnaping or hostage-taking occurs
off the DOE site and the motivation for the crime is not believed to involve DOE
interests (e.g., an estranged spouse “kidnaping” his/her children from the
DOE/contractor residence).
Methods. All DOE and prime contractor facilities and sites are subject to this
type of malevolent act. Security plans and security response procedures may be
used to identify the criteria for declaration of an Operational Emergency in terms
of the security/safeguards status or response level triggered by an event meeting
these descriptions. Local occurrence reporting guidelines and training of
occurrence reporting personnel related to Group 5 (Safeguards and Security -
Criminal Acts) can also be used to prompt a review of the site-specific criteria for
categorizing these types of kidnaping/hostage events as Operational Emergencies.
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(4) Actual theft or loss of a Category I or II quantity of Special Nuclear Materials
or other hazardous material that, if released, could endanger workers, the
public, or the environment.
Discussion. Category I or II quantities of Special Nuclear Material might be
dispersed or fashioned into a crude nuclear explosive device to terrorize the
population or extort concessions from the U.S. government. Other radioactive
and nonradioactive hazardous materials could also be used in a similar manner for
terror or extortion. Loss of such materials should be categorized as an Operational
Emergency if the material is known or suspected to have been stolen or diverted.
Actual or threatened release of the stolen/diverted hazardous material on DOE
property with the potential for acute airborne exposure hazards to people is an
Operational Emergency requiring classifications as discussed in Section 3.3.
Hazardous materials vary widely in their attractiveness as targets of theft or
diversion because of differences in toxicity, dispersibility, and ease of handling or
transport. DOE facilities and sites should identify materials and quantities that
might be attractive targets for terror or extortion, and loss or theft of those
materials should be categorized as Operational Emergencies. Loss of other
materials of similar toxicity may not warrant such a categorization for various
reasons (e.g., it is commonly used in industry and science and is widely available
from other sources; it is difficult to handle or disperse effectively; it degrades
rapidly in the environment).
Section 10
Methods. This condition applies only to facilities/sites for which the Hazards
Survey has identified Category I or II quantities of Special Nuclear Materials or
other hazardous materials that are judged to be a threat to personnel if stolen and
released. Procedures and personnel training related to nuclear material control and
accountability (MC&A) may be used to ensure recognition of the need to
categorize certain Special Nuclear Materials theft/loss situations as Operational
Emergencies. Local occurrence reporting guidelines and training of occurrence
reporting personnel related to Group 5 (Safeguards and Security - Material
Control and Accountability and Criminal Acts) can be used to prompt a review of
the site-specific criteria for categorizing these loss/theft events as Operational
Emergencies.
(5) Damage or destruction of a site or facility by natural or malevolent means
sufficient to expose classified information to unauthorized disclosure.
Discussion. Even if no personnel are injured or threatened, physical damage to or
destruction of a DOE facility should be categorized as an Operational Emergency
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if it causes or is likely to cause classified information to be exposed to
unauthorized disclosure.
Methods. This condition applies only to facilities that the Hazards Survey has
identified as containing classified matter. It may mean that classified material is
strewn about outside the facility where it would be accessible to unauthorized
personnel, or that damage to a structure permits unauthorized viewing (e.g.,
overhead surveillance) of classified objects or activities. Building emergency
plans, fire response procedures, security response procedures, and training of
building managers and classified material custodians can be used to help ensure
recognition of this Operational Emergency possibility. It is difficult to conceive of
a condition meeting this description that would not also trigger the occurrence
reporting process. Therefore, local occurrence reporting guidelines and training of
occurrence reporting personnel related to Group 1 (Facility condition -
fires/explosions), Group 3 (Personnel safety - occupational illness/injuries), Group
5 (Safeguards and security - Unaccounted-for Classified matter or compromised
information) can serve as aids to recognition that this condition is an Operational
Emergency.
3.2.4 Offsite DOE Transportation Activities
Events or conditions that represent an actual or potential release of radiological or non-
radiological hazardous materials from a DOE shipment outside a DOE site are Operational
Emergencies.
(1) The radiation dose from any release of radioactive material or the
concentration in air from any release of other hazardous material is expected to
require establishment of an initial protective action zone. (“Initial protective
action zone” is defined in DOT RSPA 1996 North American Emergency
Response Guidebook (NAERG96) as amended or updated.)
Discussion. The emergency potential associated with offsite DOE transportation
activities involving radioactive and other hazardous materials should be analyzed in
accordance with Volume IX, Transportation Emergency Management System.
Initial response to an accident involving an offsite shipment will most likely come
from a local police or fire department. These responders will most likely use
NAERG96 to determine what protective actions should be implemented at the
scene. While the language used in the various guides in the NAERG differs
slightly, it is clear that, if there are indications that a hazardous material or
radiological shipment is leaking, responders will establish a zone surrounding the
accident where protective actions, such as evacuation, are implemented. Once
Section 11
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DOE becomes aware that such a zone, or such protective actions have been
implemented by the responsible local responders, the event would be classified as
an Operational Emergency.
Methods. The responsibility for recognizing, categorizing, and reporting
Operational Emergencies associated with offsite transportation activities rests with
the DOE entity that has direct operational control of the shipment (usually the
shipper). The transportation plans, procedures, and personnel training for specific
types of materials may incorporate information and criteria needed to ensure
recognition of conditions that require an Operational Emergency declaration.
(2) Failures in safety systems threaten the integrity of a nuclear weapon,
component, or test device.
Discussion. This example applies to systems that prevent unauthorized access to
nuclear weapons, components, or test devices during transport, and also to the
systems that prevent or minimize the likelihood of damage to or detonation of the
weapon, component, or device. Significant failures of either type should be
categorized as Operational Emergencies if they require the deployment of technical
support to assist transportation personnel in restoring the shipment to the required
envelope of safety and/or security conditions.
Methods. For transportation events involving nuclear weapons, devices, or
components, the Operational Emergency declaration may be keyed to the initiation
of response procedures or reporting conditions that are unique to nuclear explosive
safety events. As an example, events categorized using DOD terminology as a
“Bent Spear” or “Broken Arrow” would both be Operational Emergencies if they
occur offsite. Some Broken Arrow events would clearly be classified as Alert or
higher if occurring on a DOE site, depending on the potential for release of
radioactive material to the atmosphere.
(3) Damage to a nuclear explosive, nuclear explosive-like assembly, or Category
I/II quantity of Special Nuclear Materials as a result of a transportation
accident.
Discussion. Offsite transportation accidents that cause actual or likely damage to
devices or materials specified in this example should be categorized as Operational
Emergencies. Observable indications of possible damage to the weapon, device, or
material (such as fire or breach of shipping container) should be determined. If
these indications are observed, the condition should be categorized as an
Operational Emergency.
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Methods. For transportation events involving nuclear weapons, devices, or
components, the Operational Emergency declaration may be keyed to the initiation
of response procedures or reporting conditions that are unique to nuclear explosive
safety events.
3.2.5 Release of Hazardous Materials
Events or conditions that involve the actual or potential release of significant quantities of
hazardous (radioactive or nonradioactive) materials to the environment are Operational
Emergencies that require classification. The following characteristics distinguish
hazardous material Operational Emergencies.
! The hazardous material is, or is likely to be, released to the environment (i.e.,
outside of a structure or enclosure).
! The material immediately threatens those who are in close proximity and has the
potential for dispersal beyond the immediate vicinity in quantities or concentrations
that threaten the health and safety of onsite personnel or the public.
Section 12
! The material has a rate of transport and dispersion in the environment that requires
time-urgent response to implement protective actions. Essentially all hazardous
material Operational Emergencies involve airborne releases because the air
pathway represents the most time-urgent situation, requiring rapid, coordinated
emergency response on the part of the facility, collocated facilities, and
surrounding jurisdictions to protect workers, the public, and the environment.
Hazardous material Operational Emergencies are to be classified as either Alert, Site Area
Emergency, or General Emergency based on the projected or measured hazardous
material impact. Classified emergencies are a subset of the Operational Emergency
category. Therefore, when an event is classified, it is (by definition) also categorized as an
Operational Emergency at the same time. The categorization that is implicit in the
classification of a hazardous material emergency does not require any notifications or
actions beyond those otherwise specified for classified emergencies.
Guidance on the classification of hazardous material Operational Emergencies is presented
in Section 3.3.
3.3 Classification of Hazardous Material Operational Emergencies
Event classification is the process of assessing hazardous materials Operational
Emergencies to determine if they fall into one of the three emergency classes.
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Classification provides further definition to this subset of Operational Emergencies beyond
the categorization of “Operational Emergency.”
3.3.1 Principles of Event Classification
During the development of an event classification system, the following basic principles
governing the purpose, expected results, and event classification methods should be taken
into consideration.
The purpose of a standard event classification system is to:
! initiate a set of pre-planned response actions appropriate to all events of a given
class or severity (e.g., notification, mobilization of resources, and protective
actions);
! activate necessary analytical and decision-making capabilities to make sound
determinations of the need for other action; and
! enhance the likelihood that mitigative action will be taken to prevent conditions
from becoming more severe.
Accurate event classification is key to achieving a graded response. A graded response is
the mobilization of personnel and resources in proportion to the severity of events or
conditions. An underlying purpose of event classification is to minimize the severity of an
event by quickly bringing technical resources to bear on the problem. The implementation
of the event classification process should provide for the following.
! Prompt notification of minor events to prevent escalation to more serious
consequences.
! Mobilization of resources to better manage the event or arrest degradation of
safety.
! Sufficient lead time to activate facilities and prepare for protective actions.
! Protection of the public and employees at some distance from the event site in case
of a release of hazardous material.
! Prompt and accurate flow of information.
Event classification methods should have the following characteristics.
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! Timely: Methods should provide for early recognition and response.
! Reliable: Event classification should be based upon dependable event indicators,
which are, whenever possible, directly related to the severity of the event.
Section 13
! Internally consistent: Different events of a similar severity should result in the
same classification. Different indicators of the same event should be recognizable
as such and result in the same classification.
! Anticipatory: Event indicators upon which classification decisions are made
should include consideration of the response level necessary to address the
potential/future consequences of the event(s) in progress, rather than just the
severity of the event at the time it is recognized.
! Redundant: Repetition of event indicators in procedures, checklists, control
panels, etc., will increase the probability that an event will be recognized and the
event classification process initiated.
! Complete: All events and associated observable indicators identified in the
facility/site Hazards Assessment should be incorporated in the event classification
system.
! Conservative: Conditions lacking detailed or quantitative indicators should be
classified on the assumption that the condition has either challenged or failed the
engineered barriers until confirmed safe by more direct methods.
! Usable: Event classification methods should be designed using sound human
engineering principles (e.g., express EALs in units consistent with instrumentation
and everyday use, use familiar form and format, place all necessary information and
references in one location, use color coding or other pointers).
! Integrated: Methods are integrated with normal operations; EALs and entry
points into the event classification procedure should be integrated with normal and
off-normal operations procedures, indicators (i.e., control panels or instrument
read-out stations), checklists, safety precautions, and other operational practices.
3.3.2 Event Classification and Protective Action Criteria
For emergency events/conditions involving the actual or potential release of hazardous
materials, each emergency class is defined in terms of the health impact or risk to the
general public or site/facility workers. If the impact or risk approaches or exceeds some
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predetermined level, then steps to protect the public and workers should be taken. These
predetermined levels, expressed in terms of doses, exposures, or concentrations, are
termed “protective action criteria.” The Order states that the specific Protective Action
Criteria (PAC) to be used in emergency planning are the Environmental Protection
Agency (EPA) Protective Action Guides (PAGs) and the American Industrial Hygiene
Association (AIHA) Emergency Response Planning Guidelines (ERPGs). These
protective action criteria are discussed in detail in Appendix B of Volume II.
The threshold between emergency classes can be defined in terms of the actual or potential
consequences from a release of hazardous material resulting in a dose or exposure that
exceeds a (PAC) at the predetermined receptor location (e.g., 30 meters, facility
boundary, and site boundary).
Section 14
At the Alert level, emergency event consequences exceeding the PAC could be expected
outside the facility at or beyond 30 meters from the point of release, but not beyond the
facility boundary. Alternatively, the Alert may be defined in terms of exceeding a site-
specific criterion corresponding to a small fraction of the PAC at or beyond the facility
boundary. At the Site Area Emergency level consequences exceeding the PAC would
exist onsite at or beyond the facility boundary but not offsite or in site areas where the
general public has unescorted access. A General Emergency exists when consequences
exceed the protective action criteria at or beyond the site boundary or in site areas where
the general public has unescorted access. The discussion above is not intended to imply
that wind-direction- dependent classification criteria (EALs) be developed, except for
EALs that are stated in terms of consequences calculated or projected using the actual
meteorological conditions existing at the time. These “Projection” EALs are not typically
used for initial classification.
For purposes of this guidance, unescorted access correlates to the site boundary definition
contained within Volume II, which states:
If the general public can gain unescorted access to areas of the DOE site, such as
public highways or visitor centers, those areas should be considered as offsite for
purposes of emergency class definition, unless it is assured that those areas can be
evacuated and access control established within about one (1) hour of any
emergency declaration.
The results of the Hazards Assessment are used to identify specific event indicators
(i.e., alarms, monitor readings, sample results, observed conditions) that correspond to
actual or potential emergency event/condition consequences that equal or exceed a PAC at
the receptor of interest. These indicators become the facility EALs.
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3.3.3 Emergency Classes and Severity Level
The severity of each of the three Operational Emergency classes and the general area of
impact intended is summarized in Table 3.1.
Table 3.1. Summary of Emergency Classes.
Emergency
Class Facility Weapons/Devices/Components
Alert Substantial actual/potential Substantial actual/potential
degradation of level of safety. degradation of level of safety. No
Hazardous material releases not immediate threat to workers or
expected to exceed PAC levels at general public.
facility boundary.
Site Area Actual/potential major failures of Actual/potential system failures
Emergency functions needed for protection of that threaten the integrity of the
workers and public. device. May adversely impact
Hazardous material releases health and safety of workers in
expected to exceed PAC levels immediate vicinity, but not the
beyond facility boundary, but not general public.
offsite.
General Actual/imminent catastrophic Actual/likely catastrophic failures
Emergency reduction of safety systems with of safety or secondary systems
potential or actual loss of threatening the integrity of the
hazardous material. device. May adversely impact
Hazardous material releases health and safety of both workers
expected to exceed PAC levels and public.
offsite.
3.3.4 Integration of Event Classification with Normal Operations
Section 15
At any given time, many different indicators and symptoms may be monitored or observed
to determine if facility conditions are normal or off-normal. The monitoring of these
indicators and the recognition of the significance of abnormalities to the state of the
facility is generally a routine function of the operations staff. Transition to emergency
operations depends on the detection and recognition of specific emergency
event/condition indicators/symptoms. This process should be viewed as a natural
extension to the routine functions employed to monitor and determine facility status. The
methods employed to implement the detection and recognition of emergency
events/conditions and to make the transition to emergency response should be integrated
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with routine Operational Emergency practices to the extent possible. A more detailed
discussion of how to implement this integration is presented in Appendix A.
3.4 Development of Emergency Action Levels
3.4.1 Role of Facility Hazards Assessment
The Hazards Assessment prepared and maintained for a facility constitutes the technical
basis for that facility's hazardous material emergency management system. The Hazards
Assessment identifies and characterizes the hazards associated with a facility, determines
the events and conditions that could lead to releases, and quantifies the potential onsite
and offsite consequences of each postulated accident or emergency event/condition. The
two steps within the Hazards Assessment process that provide the foundation on which to
develop EALs and the corresponding event classifications are the development of accident
and emergency event scenarios and the determination of the consequences.
Among the supporting material to be developed for each identified accident or emergency
event scenario are the corresponding initiating conditions, accident mechanisms,
equipment or system failures, event indicators, and contributing events. This information
is used to identify the specific observable methods of detection and recognition for each
accident or emergency event scenario. These could include an instrument reading, an
equipment status indicator, a measurable offsite/onsite parameter, a discrete observable
event, results of analyses, or another observed phenomenon. To the maximum extent
possible, the indications selected for use should be directly observable, unambiguous, and
objective.
The Hazard Assessment results provide a quantitative estimate of the consequences of
each release at specific locations in terms of radiation dose or peak concentration of toxic
chemicals. Another result of interest for EAL development is the maximum distance at
which a PAC could be exceeded for each release. This information determines the
emergency class associated with the release.
For detection and recognition methods that correlate directly with actual or potential
consequences, it is possible to calculate specific values or conditions that correspond to
each emergency class. Examples of indications for which specific values or conditions
may be calculated are alarms, instrument readings, sample analysis results, and system or
equipment status indicators (e.g., valve open vs. valve not open, system operable vs.
system not operable). Specific values or conditions for instrument readings, sample
analysis results, equipment status, etc., can be calculated that indicate when a PAC has
been reached at a receptor of interest (e.g., facility or site boundary). These specific
values or conditions become the EALs for determining the correct emergency class. For
Section 16
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example, if a scenario could result in a release of radioactive material through the facility's
stack that exceeds the criterion for a General Emergency, and one of the means of
detection is the installed stack monitor, then instrument readings marking the onset of
Alert, Site Area Emergency, and General Emergency should be calculated and identified as
EAL values. Similar values should also be calculated and identified for any other
identified detection methods.
In some situations, accident/emergency event indicators or symptoms may not be
detectable by quantitative methods, or they may be indirectly recognized. If a readily
recognizable (observable) event (i.e., tank failure) has the potential for causing a release of
hazardous material, and an actual release would be difficult or impossible to confirm (i.e.,
no quantitative detection method), then the recognition or observation of the event
becomes the EAL, and the event classification is based upon the maximum consequences
determined in the Hazards Assessment. For example, in many cases involving the actual
or potential release of non-radioactive hazardous material from outdoor storage areas,
there may be little or no installed instrumentation to quantify a release. As a result, EALs
for this situation are often stated in terms of the observable indicators or conditions, and
the resulting event classification is based on the consequence resulting from the release of
the maximum quantity of material known to be present.
The correlation of Hazard Assessment information and data leading to the creation of
specific EALs is briefly discussed in Volume II, Sections 3.5 and 3.6. A matrix or tabular
approach provides an excellent method for establishing the data relationships necessary for
creation of specific EAL values. This process is a natural continuation of the Hazards
Assessment process and should be undertaken in conjunction with that effort using the
same tools, resources, and personnel.
3.4.2 Symptom-Based and Event-Based EALs
EALs may be stated in terms of either specific symptoms of safety degradation or the
occurrence of a broadly defined event or condition.
Symptom-based EALs provide for detection and recognition of actual or threatened
safety degradation using one or more specific facts or observations. Existence of a
“symptom” alone is defined as sufficient basis for declaring an emergency. It is not
necessary to understand the cause or sequence of events that produced the symptom.
In general, symptom-based EALs are most applicable to well-instrumented and more
complex process facilities. “Symptoms” that are defined as EALs should indicate failure
of (or challenge to) the barriers, which are the systems or controls that maintain hazardous
materials in a safe condition. Symptoms that describe the status of the migration (or
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release) path of the Material at Risk (MAR) from source to the outside environment are
particularly useful as EALs. Using symptomatic EALs, the correct emergency class can
be determined simply by comparing the observed condition (alarm state, instrument
reading, equipment status, etc.,) to the EALs in the event classification procedure. No
additional interpretation or investigation of the underlying cause or sequence of events is
required.
Section 17
Event-based EALs are stated in terms of specific events or conditions with potential
safety significance. The user must interpret all available information and decide if the
situation constitutes an event-based EAL.
For event-based EALs, the level of severity (emergency class) is based on the degree to
which the event is expected to degrade the safety of hazardous materials. Safety
degradation may result from impacts on control systems, confinement barriers, or the
ability of personnel to manage the situation.
Where there is a choice, symptom-based EALs are preferred because they are more easily
correlated to criteria, and are generally more quantitative. For process facilities where
safety-significant systems are monitored with instruments and alarms, a large fraction of
the EALs may be symptomatic. Simple facility EAL sets will typically contain more
event-based EALs. Mostly symptomatic EAL sets should be supplemented with event-
based EALs for the major events analyzed. Event-based EALs can often be restated in
more quantitative or objective terms. However, some initiating conditions such as security
events do not lend themselves to preparation of symptomatic EALs. Security event EALs
must be event-based in order to ensure their “anticipatory” nature. Table 3.2 illustrates
the difference between event-based EAL statements and symptom-based EAL statements
for the same condition. Table 3.3 illustrates symptom-based EALs for increasing severity
levels for the same category of symptoms. Table 3.4 illustrates event-based EALs for
increasing severity levels of the same initiating condition.
3.4.3 Barrier Approach to EAL Development
The barrier analysis technique recommended in Volume II, Section 3.5 examines the
potential for release of hazardous material in terms of the failure or degree of challenge to
the barriers between the MAR and the environment. In addition to identifying the basic
information on which specific EALs are based, this technique provides a method for
approaching the development of an integrated EAL scheme based upon the degree of
safety degradation. The physical and administrative controls associated with safe facility
operation can be viewed as barriers, and the facility-specific EAL system can be designed
to ascertain the status of these barriers and, therefore, the degree of safety degradation.
The specific EALs developed to indicate degree of barrier challenge or failure may be
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either symptom-based or event-based in nature, but usually tend more toward symptom-
based statements. If the physical indications (e.g., instruments) and administrative
controls indicative of barrier status and challenge can be concisely stated, without needing
to describe each initiating event, the overall complexity and size of the EAL scheme can be
minimized. More information and examples on the application of this approach to EAL
development is presented in Appendix B.
Table 3.2. Examples of Event-Based and Symptom-Based
EAL Statements for the Same Condition.
Initiating Symptom-Based
Condition Event-Based EAL Statement EAL Statement
Fire Fire in the chemical make-up room of the Potential loss of chemical make-up room
ABC facility that is not extinguished by
automatic fire suppression systems.
integrity as indicated by:
chemical make-up room temperature
greater than 300E F for >5 minutes as
indicated on FP-T-007
Section 18
OR
negative pressure in chemical make-up
room of less than 0.25 in. H O as2
indicated on DP-CMR-96.
Radiological Fire, explosion, or cooling water system ABC stack alpha monitor PA-SM-691
release rupture reported in the 243-X HEPA filter reading > 3E+3 FCi/sec
or charcoal banks OR
ABC particulate gamma monitor PG-SM-
96 reading > 5E+4 FCi/sec
Natural Observed wind/tornado damage to ABC ABC building integrity loss as indicated
phenomena facility creating the potential for a by:
radiological release
any ABC Facility fenceline FL-ARM-
2001 system monitor reading >1 mrem/hr,
OR
HVAC system not maintaining > 0.2"
w.g. negative pressure in Ventilation Zone
A
Note: Values in the EALs above are only examples; site/facility-specific values will depend on hazardous
materials characteristics, site/facility layout, and instrumentation available. Example: For this fictitious
facility/site, the 300EF temperature reading for >5 minutes might be based on the fire dampers being rated for
350EF for 10 minutes.
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Table 3.3. Example Symptom-Based EALs for Different Severity Levels
of the Same Initiating Condition.
Initiating
Condition
Example EALs For:
Alert Site Area Emergency General Emergency
Nitric acid tank Tank NA-15 level Tank NA-15 level Tank NA-15 level
release decreasing at > 1.0 ft/min decreasing at > 2.5 ft/min decreasing at > 5.0 ft/min
(with no transfer operation (with no transfer operation (with no transfer operation
in progress and pump in progress and pump in progress and pump
discharge valve N.V.-3 discharge valve N.V.-3 discharge valve N.V.-3
indicating shut) indicating shut) indicating shut)
Radiological Stack Monitor I-40 (Fci/cc) Stack Monitor I-40 (Fci/cc) Stack Monitor I-40
release (see X SF-50 (CFM) X (4.27 E- X SF-50 (CFM) X (4.27 E- (Fci/cc) X SF-50 (CFM) X
formula) 4) reading > 2E0 Ci/sec 4) reading > 1E+1 Ci/sec (4.27 E-4) reading > 3E+1
OR OR Ci/sec
Any combination of two Any combination of two
ARMs or portable survey fenceline ARMs or Any combination of two
instrument readings >500 perimeter portable survey portable survey instrument
mrem/hr in the area outside instrument readings of readings outside the
the ABC Facility, but >1000 mrem/hr security fence of >1500
within the security fence mrem/hr
OR
OR
Any combination of two
portable survey instrument
readings at the site
boundary of >500 mrem/hr
Waste tank 3 hottest RTDs > 90EF 3 hottest RTDs > 90EF No analyzed chemical
failure by AND AND reaction and tank failure
internal result in General
reaction Emergency
any 2 pressures > + 1 in any 2 pressures > 1.0 PSIG
H O in past hour2
AND
“A” OR “B” rupture disk
failure alarm
Note: Values in the EALs above are only examples; site/facility-specific values will depend on hazardous
materials characteristics, site/facility layout, and instrumentation available. Example: For this fictitious
facility/site, the stack monitor readings would be those computed, using 95% meteorology, to exceed the 1 rem
TEDE value at the respective receptor points.
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Table 3.4. Example Event-Based EALs for Different Severity Levels
of the Same Initiating Condition.
Initiating
Condition
Example EALs For:
Alert Site Area Emergency General Emergency
Section 19
Nitric acid Rupture of 2-in. transfer Rupture of 5-in. transfer With present use of 80%
railroad tank line during Xfr operation line during Xfr operation nitric acid and limit of one
car release OR OR RR tank car at the facility,
within facility there is NO RR tank car
boundary rupture scenario resulting
other minor breach other major breach
AND
visible acid plume length or
personnel distress at >2 RR Visible acid plume length
tank car lengths or personnel distress at >4
AND EITHER
RR car lengths
OR
plume crossing facility
security fenceline
in a General Emergency
Process line A Loss of AC power to Loss of AC power to Loss of AC power to
loss of power SWGR A-19 for >20 SWGR A-19 for >1 hour SWGR A-19 for >2 hours
(only minutes AND AND
applicable in
mode A
operation)
any 2 local or panel A- indication that process line
RTD-10 temperatures A is auto-catalytic by ANY
exceed 500EF of following indications:
• panel A-RTD-10
temperatures >1000EF
OR
• visible smoke outside
room A
OR
• Shift Manager judgment
Natural Tornado observed on site Tornado observed to touch Tornado-driven objects
phenomena and approaching facility as down within facility breach filter Bldg F-202
impact confirmed by either: boundary as confirmed by walls as indicated by
Tornado visual report
OR visual report observed damage to
wind speed > 80 mph on
met. tower M-16 or M-19 wind speed > 80 mph on
either: either:
OR building walls or exterior
met. tower M-20 or AM-1
panels
OR
HVAC system unable to
maintain > 0.2" w.g.
negative pressure in F-202
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Note: Values in the EALs above are only examples; site/facility-specific values will depend on hazardous
materials characteristics, site/facility layout, and instrumentation available. Example: The 500 and 1000EF
readings would be based on analyses showing the approach to and confirmed auto-catalytic conditions.
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3.4.4 Non-Facility-Specific (Sitewide) EALs
Most events will be classified on the basis of facility- or activity-specific symptoms or
event indicators; however, some initiating conditions are a result of factors external to the
facility. Some of these may not be identified through the Hazards Assessment. The
following are examples of conditions that do not originate in a specific facility and are
likely to be classified only by a sitewide authority.
! Incidents affecting multiple operating areas or facilities.
! Heightened readiness required to deal with range of possible challenges to security
or safety at hazardous materials facilities. (Note: Some prior security and
safeguards events which were classified at Alert or higher may now become
Operational Emergencies not requiring classification.)
! Classification based upon impacts that are measured or calculated by a sitewide
response organization.
! Transportation accidents involving facility-generated hazardous materials that
occur onsite, but away from the facility.
The following are examples of initiating conditions indicative of the events listed above.
! Earthquakes, tornado, range fire, blizzard/ice storm, and flooding.
! Train, plane, or land vehicle accidents involving either the onsite movement of or
impact to hazardous materials. (Note: Personnel casualties caused by
transportation accidents not involving hazardous materials are covered under the
Occurrence Reporting System.)
Section 20
! Release of hazardous material at an adjacent facility when such releases impact the
capability of other site facilities to maintain control of hazardous materials.
! Security and safeguards events potentially affecting one or more site hazardous
materials facilities.
Personnel responsible for developing EALs should be cognizant of initiating events that
are either non-facility-specific (sitewide) or applicable to multiple facilities and should
ensure that EALs for such events are included in facility and site-wide classification
procedures.
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3.4.5 Discretionary EALs
To compensate for possible incompleteness in the EAL set or unforeseen conditions, such
as multiple events or loss of essential instrumentation during an accident, there must be a
criterion by which personnel responsible for event classification (i.e., Emergency Director
or Shift Supervisor) can declare the level of emergency that most closely corresponds to
the apparent conditions, regardless of whether it can be determined that a specific EAL
has been exceeded. This criterion is necessary to ensure that a decision can be made
rapidly by the person with the best understanding of the facility and the conditions that
exist at the time.
Therefore, each facility and sitewide EAL system should also contain a judgment-based
EAL statement to cover situations not specifically covered in the EALs (e.g., loss of
all/most indications when an event is in progress). These EALs, sometimes referred to as
“discretionary,” “general prudential,” or “judgment” EALs, are typically stated as “Shift
Manager or Duty Officer Judgment” or “Emergency Director/Manager Judgment.” These
“judgment” EALs are applicable to all three severity classes. The individual responsible
for classification (e.g., emergency director) compares his/her subjective evaluation of the
degree of safety degradation or facility status against the fundamental definitions of
emergency classes given in Table 3.1 and makes the emergency declaration.
3.4.6 Equipment Availability
When matching initiating events to facility equipment and instrumentation that provide a
means of detecting the event, it should be recognized that under some accident conditions
the equipment may be non-operational (e.g., loss of power) or be outside its operating
limits (e.g., out of range). To cover this situation, the EAL scheme should include
redundant means of detection, such as visible observations by facility staff, and more
remote readings (e.g., exterior to process areas or facility walls) from portable survey
instruments.
3.4.7 Facility Operational Modes
The conditions that exist during different operational modes (e.g., operating versus
shutdown) must be taken into consideration when developing facility-specific EALs.
During one mode of operation, an instrument reading of a specific value provides a clear
indication of an accident condition; in another mode, it may not. Or, an instrument used
to detect an accident indicator during normal operations may not be available during
stand-by mode. For example, during routine operations in a facility, a reading exceeding
10 mrem/hr on a specific area radiation monitor may be a clear indication of an Alert level
event; however, during maintenance with shielding removed, exceeding this value on the
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Section 21
same monitor may be normal. Avoid setting an EAL that can be exceeded when no
emergency exists. Operating mode applicability can be included in either groups of EALs
or within individual EALs.
3.4.8 Method of EAL Presentation
Once all of the facility-specific EALs have been developed, they must be organized into an
implementation procedure usable by personnel responsible for event classification. The
resulting procedure should be clear, concise, and designed using good human factors
principles. The technical bases for the EALs should be maintained in a separate document
suitable for training and reference (e.g., the facility Hazards Assessment Document or a
summarized resource manual). The following factors should be considered in determining
the method of presentation.
! The intended user. The initial event classification will usually be performed by a
person closely associated with the facility, such as a shift manager/supervisor,
senior operator, or duty officer. Therefore, the facility's event classification
procedure should be presented in a form familiar to operations personnel. Once
the Emergency Response Organization (ERO) has been activated, follow-up event
classifications are typically performed by a higher level of management. Decisions
will be based on input from the facility as well as other elements of the ERO, such
as a consequence assessment team in the Emergency Operations Center (EOC.)
! Conditions under which the procedure is to be used. Because this procedure
must be read, understood, and acted upon under emergency conditions, it is highly
likely that the user will be under high stress. This is particularly true for the initial
event classification, when the user is involved in directing the response. The
procedure should be designed to reduce the possibility of stress-related errors.
! Assistance available to the user. The initial user of the procedure will likely have
the least amount of help in interpreting the EALs. Therefore, all the information
necessary to make a decision has to be contained in the procedure and be easily
recognized and interpreted. The relieving Emergency Manager responsible for
event classification has many more resources immediately available, including the
facility personnel, to assist in the decision-making process than does the initial
classification authority, the on-site supervisor.
3.4.9 Event Termination Criteria
To complete the event classification process, some criteria must be developed to
determine when an event class can be terminated. It is neither practical nor recommended
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that EALs be used in reverse to downgrade the event class. Neither is it necessary to
develop termination criteria for every accident/emergency event scenario analyzed in the
Hazards Assessment. Rather, general criteria should be established that will allow ERO
personnel to declare emergency response terminated and enter into an accident/emergency
event recovery phase. “Termination and Recovery” are covered in detail in Volume IV,
Chapter 6. “Reentry” criteria and guidance are covered in Volume IV, Chapter 2.
3.4.10 Testing EALs for Completeness
Section 22
The proposed facility EALs should be tested against a range of initiating conditions and
accident/emergency event scenarios to determine if the indicated emergency class is
appropriate. If necessary, EALs should be modified or additional EALs developed to
ensure that the full range of possible emergency conditions can be classified in a timely
manner. It is also prudent to test the EALs, through a verification and validation program,
with the personnel who will be declaring the event (Emergency Director, Shift Supervisor,
etc.,) to ensure the wording and referenced instrumentation is written/referenced in a way
to allow correct interpretation.
To compensate for possible incompleteness in the EAL set or unforeseen conditions, such
as multiple events or loss of essential instrumentation during an accident, there must be a
criterion by which personnel responsible for event classification (i.e., Emergency Director
or Shift Supervisor) can declare the level of emergency that most closely corresponds to
the apparent conditions, regardless of whether it can be determined that a specific EAL
has been exceeded. This criterion is necessary to ensure that a decision can be made
rapidly by the person with the best understanding of the facility and the conditions that
exist at the time. Documentation of this effort should be retained in accordance with site
quality assurance requirements.
3.5 Bibliography
DOE O 151.1Chg 2. Comprehensive Emergency Management System. August 21, 1996.
DOE O 232.1A. Occurrence Reporting and Processing of Operations Information. July
21, 1997.
DOE M 232.1-1A. Occurrence Reporting and Processing of Operations Information.
July 21, 1997.
DOE 5400.5. Radiation Protection of the Public and the Environment.
February 8, 1990.
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33 United States Code 1321. Clean Water Act.
Title 10 CFR 835. Occupational Radiation Protection.
Title 40 CFR 302. Designation, Reportable Quantities, and Notification.
Manual of Protective Action Guides and Protective Actions for Nuclear Incidents.
EPA-400-R-92-001. Environmental Protection Agency. May 1992.
The DOT 1996 North American Emergency Response Guidebook (NAERG96).
DOT RSPA P 5800.7. Department of Transportation Research and Special Programs
Administration. 1996.
Criteria for Preparation and Evaluation of Radiological Emergency Response Plans and
Preparedness in Support of Nuclear Power Plants, NUREG-0654/FEMA-REP-1, Rev. 1.
Nuclear Regulatory Commission and Federal Emergency Management Agency.
November, 1980.
Methodology for Development of Emergency Action Levels. NUMARC NESP-007,
Rev. 1. The Nuclear Management and Resource Council, Inc. February 1991.
The AIHA 1996 Emergency Response Planning Guidelines and Workplace
Environmental Exposure Level Guides Handbook. American Industrial Hygiene
Association. 1996.
Acronyms
AIHA American Industrial Hygiene Association
EAL Emergency Action Levels
EDE Effective Dose Equivalent
EOC Emergency Operations Center
EPA Environmental Protection Agency
ERO Emergency Response Organization
ERPG Emergency Response Planning Guidelines
MAR Material at Risk
NAERG96 North American Emergency Response Guidebook
PAC Protective Action Criteria
PAG Protective Action Guide
RQ Reportable Quantity
TEDE Total Effective Dose Equivalent
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APPENDIX A
INTEGRATION OF EVENT CATEGORIZATION AND
Section 23
CLASSIFICATION WITH NORMAL OPERATIONS
A.1 Introduction
Even the best designed set of event recognition procedures will not function properly if
the detection, recognition, and communication chain necessary to alert those responsible
for event categorization and classification fails. In this context, categorization refers to
determining if an event is an Operational Emergency as defined in the Order. These events
may require classification (i.e., as an Alert, Site Area Emergency, or General Emergency)
if they involve a potential or actual release of radiological or non-radiological hazardous
materials. A major problem encountered when designing an event recognition system is
how to ensure that events/conditions are compared to categorization and classification
criteria in a timely and efficient manner. In general, if the severity of a condition or event
is beyond that covered by DOE M 232.1-1, then there should be some way of detecting it,
a means to ensure that its significance is recognized, and a mechanism for communicating
the information to those responsible for event categorization and classification.
The elements required to ensure the proper sequence of actions leading to event
categorization and classification include the following.
! Means of detecting symptoms/indications.
! Recognition of significance of indications.
! Proper response to recognition (i.e., communication with categorization and
classification authority).
Within the site/facility operating structure, many varied detection methods exist. The
recognition of the significance of that which is detected depends on training, the existence
of “attention-getting” devices, and procedural links. Transmittal of information to the
person with the authority to perform event categorization and classification depends on
the establishment of clear, well-understood reporting relationships.
Most DOE sites/facilities had existing occurrence notification, environmental spill
reporting, and hazardous materials emergency classification systems in place when the
Order was issued. The Order included new requirements to categorize certain events as
Operational Emergencies not requiring classification and to report the events within a
specified time period. Most sites will find it convenient to add the new event
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categorization criteria and reporting instructions to one or more of the existing systems.
For example, the implementing procedures for occurrence reporting could be modified to
indicate the events that should be categorized as Operational Emergencies not requiring
classification. The procedure would be modified to specify the accelerated notification
requirements for these events. With this alternative, the existing Emergency Action Level
(EAL) procedures could continue to be used for event classification. A second alternative
is to expand the existing event classification procedures to include the categorization
criteria for Operational Emergencies not requiring classification.
Section 24
The following discussion will examine how the symptom, detection, recognition, and
communication chain could be implemented through integration with normal operational
activities and procedures. Categorization will usually be based on general criteria and
judgment of the need to notify people up the chain. Classification should be less
subjective and based on pre-established EAL criteria. A rigorous integration of event
recognition procedures into existing facility procedures is not necessary and could lead to
difficulty in maintaining the facility procedures. However, keeping the recognition
procedures totally separate and relying solely on memory and training during periods of
high stress is equally insufficient. Visual cues and other indicators are sometimes
employed in facility procedures to alert users to consult the event recognition procedures.
For the purpose of this discussion, the likely methods of detection and means for
accomplishing categorization of events/conditions or classification, if necessary, have been
grouped into five general areas.
! Complex hazardous material facilities.
! Industrial facilities.
! Office buildings.
! Site emergency response organizations.
! Natural phenomena.
Listed below are some accident/emergency event symptoms/indicators, potential methods
of detection, and methods for incorporating the recognition of event classification into
normal operations. The groupings and listings used in this discussion are not intended to
be all inclusive but are used only for illustrative purposes.
A.2 Complex Hazardous Material Facilities
This grouping is applicable to facilities containing more complex processes, such as
reactors and waste vitrification facilities. Potential symptoms or indications that could
identify the onset of an accident condition include abnormal indications for temperatures,
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pressures, fluid levels, flow rates, power loss, radiation levels, and fire detection.
Detection methods include the following.
! Installed instrumentation/hardware.
! Routine or off-normal sampling results.
! Operator observation during log taking and other inspection/walkdown routines.
! Employee observation during normal work activities.
Methods for implementing the categorization and classification transitions include the
following.
! Facility Operating Procedures. Facilities with complex processes have a system
of procedures that may include individual equipment procedures, integrated plant
procedures, normal operating procedures, system compliance procedures, alarm
response procedures, off-normal operating procedures, and emergency procedures.
The facility may also be governed by Technical Safety Requirements (TSRs) or
Technical Specifications. These procedures and documents can be annotated,
where appropriate, to refer the user directly to an event categorization or
classification procedure. There are many methods that use accepted human
engineering principles for annotating text to call the users attention to a particular
piece of important information. Some of these include the use of flags, margin
notes, color coding, or other special symbols, such as stars or triangles.
Regardless of the method used to catch the user's attention, the entry should be
specific as to the condition for triggering the comparison with the event
categorization and classification procedure(s) and the section of the categorization
or classification procedure that applies.
Section 25
! Inspection/Walkdown Observations. The formality of these activities varies
from one facility to another. These activities may be governed by procedure,
standing orders, checklists, log sheets, or verbal instructions. Using the results of
the facility's Hazards Assessment, it can be determined which accident
symptoms/indicators these activities could be expected to detect. The procedures,
checklists, log sheets, and other instructions can be annotated as discussed above
to assist the user in recognizing when an accident indicator has been encountered.
The annotation should contain specific instructions on whom to notify and how to
notify them (e.g., job position or title and phone number). A specific reference to
the procedure and section could also be included. Personnel performing
inspections/walkthroughs form a human interface with the system or process.
Judgment and interpretation are required to initiate the recognition,
communication, and event categorization and classification chain. As a result,
training is a key element in ensuring that this chain functions properly.
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! Standing Orders/Instructions to personnel. This is general guidance provided
to personnel, often job-specific, encouraging awareness of certain conditions,
symptoms, and indicators for making notifications of such to specific personnel
and/or responding with prescribed actions. A standing order should contain
guidance on how to recognize and interpret symptoms and indicators as well as
instructions on who to contact and how to contact them in the event that they are
observed. The person identified should be directly responsible for comparing the
symptom/indicator to event categorization and classification criteria or be provided
with additional guidance and instructions to ensure that the information is
promptly communicated to someone who is authorized to perform these tasks.
Once again, recognition and communication are highly dependent upon human
judgment and interpretation; therefore, training plays a key role.
Facilities in this grouping are generally comprised of relatively complex systems required
to have a variety of detection systems and alarm features. Usually, the operation of these
facilities is highly formalized and controlled by detailed procedures. A system of
inspections and walkdowns should augment the detection process. Personnel working in
these facilities should be highly trained, which improves the probability that
symptoms/indicators will be recognized and a prompt response initiated. The path from
detection to the personnel responsible for event recognition is often short and direct,
which is necessary because these are often high-hazard facilities with a small response
window for protective actions.
A.3 Industrial Facilities
This grouping covers activities such as shops, transportation, laboratories, burial grounds,
tank farms, storage tanks, transfer lines, etc. Hazardous materials may be involved with
some of these activities. Methods for detecting an emergency include the following.
! Management observation during inspections/walkdowns.
! Alarms and monitors.
! Sampling or measurements.
! Employee or public report.
Methods for implementing the recognition/categorization and classification transition
include the following.
Section 26
! Procedures and reporting relationships. There are fewer and less formal
procedures within this grouping than the previous group. The procedures that do
exist can be annotated, where appropriate, to refer to emergency categorization
and classification procedures. Because fewer procedures exist, the associated
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reporting structure is less formalized and complete. The normal reporting
relationship between the point of detection/recognition and the position
responsible for performing event categorization and classification is often less
direct than it was in the previous grouping. For example, the reporting chain
might include supervisor, operations manager, and building/area emergency
director. Therefore, in addition to the considerations mentioned above for
annotating procedures, it is important to shorten the normal reporting chain to
bring the information to the attention of the authority responsible for event
categorization and classification as rapidly as possible.
! Procedural response to alarms and monitor readings. Within this grouping,
less instrumentation exists for the detection of event symptoms/indicators.
Examples of the types of instrumentation that may exist include radiation monitors
[i.e., Continuous Air Monitors (CAMs), Area Radiation Monitors (ARMs),
transfer line monitors, environmental surveillance monitors, etc.,] and
non-radiological hazardous materials monitors (e.g., oxygen level indicators,
chlorine monitors, explosive level indicators, fire detectors, tank level
indicators/alarms, transfer line leak detectors). As discussed above, these response
procedures can be annotated to facilitate the recognition to event classification
chain.
! Response to sampling and measurement results. Sampling and monitoring
activities are usually governed by procedures and the results recorded on
checklists, log sheets, or another form of permanent record. Any of these are
candidates for notations to alert the user that they have encountered the
symptoms/indicators of a potential Operational Emergency. The methods for
implementing this form of user aid have been discussed above.
Within this grouping, the detection/recognition/categorization and classification chain is
less reliant on installed instrumentation and more on human judgment and interpretation.
Therefore, training is once again an important element. The individual at the point of
detection is further removed from the event classification authority. A strong training
program and periodic safety meetings coupled with good procedural and reporting
interfaces are necessary to ensure the completion of the
detection/recognition/categorization and classification transition.
A.4 Office Buildings
Large office buildings may have a building management organization for utilities, a
building security force, volunteer building evacuation wardens, and a building emergency
plan. Smaller office buildings will likely have none of these building-specific organizations
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and plans. They may, however, be covered by a sitewide plan and emergency
organization. Contractors may also have company policy manuals that address emergency
notifications and response. At office buildings, emergency detection will almost always
depend on employee or public report and installed fire detection systems. The
applicability of the Order to contractor and subcontractor employees in offsite buildings
should be determined on an individual basis by contracting officers.
Section 27
Methods for detecting the symptoms/indicators of an emergency at an office building
include the following.
! Fire alarm systems.
! Security and building management force observations.
! Employee observations or public report.
Methods for implementing the recognition/categorization and classification transition
include the following.
! Security force and building management organization procedures and
standing orders. The procedures that do exist can be annotated where
appropriate to refer to emergency categorization and classification procedures or
to notify a designated person in the occupant organization who is trained to make
the categorization and notification determination.
! Building emergency plans. Large multi-story office buildings will have an
emergency plan that identifies evacuation routes and provisions for the evacuation
of handicapped persons. As previously mentioned, references and notations can be
included to link these plans to the categorization authority and procedures.
! Security force, employee, or public recognition of an emergency. Office
building occupants should be trained to respond to fire alarms and other potential
emergencies at their work location, but most of them will have little if any
knowledge of event categorization and reporting requirements. The assignment of
a building warden can provide the link to categorization and notification. Large
DOE sites typically have an Emergency Duty Officer (EDO) who is notified of all
emergencies on the site. The EDO can categorize the emergencies for buildings
that do not have an established emergency organization. Contractors typically
make arrangements to be notified by security and fire departments for off-hours
emergencies that affect their buildings. The public generally receives no formal
training, but is often provided with phone numbers and points of contact should
any conditions which may impact security or health and safety be observed.
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A.5 Emergency Response Organizations
EROs may include security forces, fire departments, emergency medical providers, 911
centers, and fire dispatch centers. These organizations are often the first to know of an
emergency since employees are trained to call them immediately to obtain aid.
Notification is usually by telephone or installed security and fire alarms. Their first priority
is the dispatch of the needed aid. These organizations can then either provide the
emergency categorization and classification or initiate a notification call tree to the
categorization and classification authority. This authority is typically a Site Emergency
Duty Officer, Facility/Building Emergency Director, centralized occurrence notification
center, or On-Call Manager.
Methods for detecting the symptoms/indicators of an emergency include:
! security alarm systems;
! fire alarm system; and
! employee observations or public report.
Methods for implementing the recognition/categorization and classification transition
include the following.
Section 28
! Procedures and standing orders. Procedures, standing orders, and training can
identify specific conditions that require declaration of an Operational Emergency
and/or notification of the categorization and classification authority. It is
important that the security, fire, and emergency preparedness plans establish the
structure for close coordination between the organizations. The working-level
implementation is carried out within the procedures, standing orders, checklists,
and training. Links between the security and fire response systems and the
emergency response system must exist to ensure that the potential health and
safety aspects of an emergency are recognized and that the information is
communicated to the emergency response event categorization/classification
authority. Establishing specific measurable criteria as trigger points for notifying
the event categorization/classification authority is not always straightforward.
Annotations and references in procedures and standing orders may require more
than simple margin notes, and the success of the transition will depend heavily on
training.
! Operating, off-normal, and emergency procedures. These may contain specific
instructions for operations during a security incident. As previously mentioned,
references and notations can be included.
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! Security personnel are well-trained to recognize a security threat. Fire
department personnel are well-trained to fight fires. They are less prepared to
recognize when an event also has health and safety implications. Employees
receive limited training on how to recognize a reportable emergency condition and
respond according to general standing orders. Training on the recognition of
health, safety, and operational implications stemming from emergency events is
important for emergency response personnel and general employees. The public
generally receives no formal training but is often provided with phone numbers and
points of contact should any conditions that may impact security or health and
safety be observed.
! Procedural reporting relationships. Within the EROs, the reporting
relationships governing the response are proceduralized and understood. But the
reporting relationship between emergency response groups and the ERO is often
poorly defined and understood. Reporting relationships for general employees are
less distinct and understood.
Emergency response groups (security and fire) maintain a highly structured response
system implemented by well-trained personnel whose responsibilities are well-defined
within their emergency response plan. However, their event classification criteria may not
be integrated with facility event classification criteria. Site emergency plans and security
and fire plans should be coordinated to ensure strong, well-understood links in both
directions. Procedures, standing orders, and training should contain information and aids
to assist fire and security personnel in coordinating with other elements of the ERO.
A.6 Natural Phenomena
This group covers those emergency conditions that occur as a result of natural
phenomena. Symptoms/indications that could identify an actual or potential threat include
observed tornado, high winds, high/low water levels, range or forest fire, earthquake, and
lightening. Methods for detecting the symptoms/indicators of events caused by natural
phenomena include the following.
! Meteorological instrumentation.
! Weather forecasts.
! Water level sensors.
! Seismic monitors.
! Employee/public observation.
! News media report (e.g., report of range fire, tornado sighting, weakening of
Section 29
earthen dam upstream of site; may not classify based upon report but might initiate
investigation that would result in detection).
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Methods for implementing the recognition/classification transition include the following.
! Comparison of observed or measured conditions to limits/specifications.
Often personnel at the point of detection are not directly related to the operational
organization of a particular facility and do not have the experience or training to
recognize when their observations indicate that an operational limit is being
approached or exceeded. Field measurements are not always taken in the same
units specified in the TSRs or event classification criteria thus adding to the
difficulty in recognizing their significance (e.g., seismic monitors read out in the
Richter scale and the criteria is in units of acceleration). Therefore, log sheets or
other methods used to record observations should be annotated, and training
should include instructions to aid personnel in recognizing and reporting of events
needing comparison to the event classification criteria.
! Procedural response and reporting relationships. Procedures used for taking
measurements that are indicators of natural phenomena should be annotated where
appropriate (e.g., meteorological station procedures, water control procedures,
etc.). Because the personnel at the point of detection are often separate from the
facility operations organization, the path for reporting information may be long and
informal.
Detection of natural phenomena affecting facility safety may be performed by diverse,
unrelated groups who are often far removed from the facility operations organization and
the event categorization and classification authority. Few formalized procedures or other
aids exist to facilitate the recognition/reporting/categorization/classification process. To
make the transition work properly, it is important to establish trigger points that direct
personnel to bring abnormal conditions to the attention of the event categorization and
classification authority.
Acronyms
ARM Area Radiation Monitors
CAM Continuous Air Monitors
EAL Emergency Action Level
EDO Emergency Duty Officer
TSR Technical Safety Requirements
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APPENDIX B
METHODS AND EXAMPLES FOR IMPLEMENTATION
OF EVENT CATEGORIZATION AND CLASSIFICATION
B.1 Introduction
This appendix presents suggestions for placement of Operational Emergency
categorization criteria within existing site/facility Occurrence Reporting and Classification
procedures. Sections B.3 and B.4 discuss the application of the barrier approach to EAL
development and provide examples of EAL organization and format by presenting EALs
developed for the hypothetical facility Hazards Assessment presented in Volume II,
Appendix D.
B.2 Operational Emergency Categorization Procedure Integration
Section 3.2 of this chapter included a general discussion of the means by which the
recognition and categorization of Operational Emergencies could be assured. This section
provides methods and examples for integrating recognition and categorization with
existing programs and procedures for operations, safety, security, emergency response,
and occurrence reporting.
Section 30
It is not intended that facilities/sites develop detailed and quantitative categorization
criteria for each type of Operational Emergency described in the Order. If, however, upon
examining the Operational Emergency potential and likely response, site/facility officials
determine that additional measures are needed to ensure prompt recognition and
categorization, these methods and examples may prove useful. The following sections
provide examples of how Operational Emergency recognition criteria and alerting or
prompting questions may be inserted within several types of existing site/facility
procedures. For sites/facilities that have existing, consolidated occurrence reporting and
classification procedures, the new Operational Emergency categorization criteria should
be summarized in a companion procedure or appendix to these existing procedures.
B.2.1 Health and Safety
1. Order Example: Discovery of radioactive or other hazardous material
contamination from past DOE operations that is causing or may reasonably be
expected to cause uncontrolled personnel exposures exceeding protective action
criteria.
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Possible Implementation Method:
! Include referral to local Operational Emergency criteria in Site-Specific
Radiological Control Manual and internal procedures for reporting
radiological problems and abnormal survey findings.
! Include criteria in Site Occurrence Reporting guidelines, such as:
Radioactive contamination in an uncontrolled area in excess of 500 times
the surface contamination levels specified in Appendix D, 10 CFR 835 is
to be reported as an Operational Emergency in accordance with DOE O
151.1, Chapter VIII.
2. Order Example: An offsite hazardous material event not associated with DOE
operations that is observed to have or is predicted to have an impact on a DOE
site such that protective actions are required for onsite DOE workers.
Possible Implementation Method:
! Provide standing instructions to the single point of contact for emergency
communications (site 911 operator, Security Watch Commander, or
equivalent) to the effect that: Any advisory or warning that an offsite
hazardous materials release is in progress or imminent and that onsite
persons may be affected is an Operational Emergency.
! Insert a statement in the facility/site emergency classification procedure,
Hazardous Materials Events section, such as: Any hazardous material
release from offsite that requires evacuation or sheltering of onsite
personnel is to be reported as an Operational Emergency in accordance
with DOE O 151.1, Chapter VIII.
3. Order Example: An occurrence that causes or can reasonably be expected to
cause significant structural damage to DOE facilities, with confirmed or
suspected personnel injury or death or substantial degradation of health and
safety.
Possible Implementation Method:
! Include provision in site fire/rescue procedures and building pre-fire plans
such as: Any fire or rescue response to building may require prompt
notification of DOE Headquarters and offsite authorities. Immediately
notify (emergency duty officer) of call-out to this facility.
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4. Order Example: Any facility evacuation in response to an actual occurrence
that requires time-urgent response by specialist personnel, such as hazardous
material responders or mutual aid groups not normally assigned to the affected
facility.
Section 31
Possible Implementation Method:
! Include provision in site fire/rescue, hazardous materials (HAZMAT) team
or security augmentation procedures and building pre-fire plans such as:
Any fire, HAZMAT or security response to building may require
prompt notification of DOE Headquarters and offsite authorities.
Immediately notify (emergency duty officer) of call-out to this facility.
5. Order Example: An unplanned nuclear criticality resulting in actual or
potential facility damage.
Possible Implementation Method:
! Include specific criteria in site/facility emergency classification (EAL)
procedure to allow distinction between a criticality that requires
classification and one that does not, such as: Valid criticality alarm or
other indication of criticality in cell with effluent high range monitor
or facility ARMs reading less than (value indicating dose outside facility
walls exceeding site-specific Alert criterion) is to be reported as an
Operational Emergency in accordance with DOE O 151.1, Chapter VIII.
6. Order Example: Any non-transportation-related mass casualty event.
Possible Implementation Method:
! Provide training and a checklist item for Incident Commanders to require
them to make the judgment call on whether they are dealing with a “mass
casualty,” such as: Onsite illness/injury events requiring activation of
mutual aid from both (offsite medical centers/ambulance services) to
transport casualties is an Operational Emergency. Have Dispatcher
immediately advise (emergency duty officer) of situation.
B.2.2 Environment
1. Order Example: Any actual or potential release of hazardous material or
regulated pollutant to the environment, in a quantity greater than five times the
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Reportable Quantity (RQ) specified for such material in 40 CFR 302, that could
result in significant offsite consequences such as major wildlife kills, wetland
degradation, aquifer contamination, or the need to secure downstream water
supply intakes.
Possible Implementation Method:
! Provide training and a checklist item in spill response plan/procedures to
direct the team leader to initiate notifications under certain conditions, such
as: The following conditions have been identified as potential Operational
Emergencies requiring prompt notification of DOE Headquarters and
offsite authorities. Immediately advise (emergency duty officer) of the
situation.
– Breach of tank with contents reaching the drainage canal.
– Overflow or breach of the retention dam.
2. Order Example: Any release of greater than 1000 gallons (24 barrels) of oil to
inland waters; greater than 10,000 gallons (238 barrels) of oil to coastal waters;
or a quantity of oil that could result in significant off-site consequences (e.g.,
need to relocate people, major wildlife kills, wet-land degradation, aquifer
contamination, need to secure downstream water supply intakes, etc.). [Oil as
defined by the Clean Water Act (33 U.S.C. 1321) means any kind of oil and
includes petroleum.]
Possible Implementation Method:
Same as example 1 above.
B.2.3 Security and Safeguards
1. Order Example: Actual unplanned detonation of an explosive device or a
credible threatened detonation resulting from the location of a confirmed or
suspicious explosive device.
Possible Implementation Method:
Section 32
! Link the Operational Emergency declaration to the security response level
that corresponds and include notifications in the security force procedures
and checklists for that level response, such as: Security Alert II -- Any
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unplanned detonation of an explosive device or a credible threatened
detonation may be an Operational Emergency requiring prompt
notification of DOE Headquarters and offsite authorities. Immediately
advise (emergency duty officer) of the situation.
2. Order Example: An actual terrorist attack or sabotage event involving a DOE
site/facility or operation.
Possible Implementation Method:
Same as example 1 above.
3. Order Example: Kidnaping or the taking of hostage(s) involving a DOE
site/facility or operation.
Possible Implementation Method:
Same as example 1 above.
4. Order Example: Actual theft or loss of a Category I or II quantity of Special
Nuclear Materials or other hazardous material that, if released, could endanger
workers, the public, or the environment.
Possible Implementation Method:
! Provide training and a response checklist item for both Security and
Materials Control and Accountability (MC&A) staff to ensure recognition
of this item, such as: Loss or diversion of any Category I or II quantity of
Special Nuclear Material is an Operational Emergency requiring prompt
notification of DOE Headquarters and offsite authorities. Immediately
advise (emergency duty officer) of the situation.
5. Order Example: Damage or destruction of a site or facility by natural or
malevolent means sufficient to expose classified information to unauthorized
disclosure.
Possible Implementation Method:
! Include provision in site fire/rescue procedures and building pre-fire plans
such as: Major fire or structural damage to a building may be an
Operational Emergency requiring prompt notification of DOE
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Headquarters and offsite authorities. Immediately notify (emergency
duty officer) of call-out to this facility.
B.2.4 Offsite DOE Transportation Activities
1. Order Example: The radiation dose from any release of radioactive material or
the concentration in air from any release of other hazardous material is expected
to require establishment of an initial protective action zone. (“Initial protective
action zone” is defined in DOT 1996 North American Emergency Response
Guidebook - NAERG96, as amended or updated.)
Possible Implementation Method:
! Provide drivers, dispatchers, and responsible program personnel with
criteria for determining emergency status of shipments. For radioactive
shipments, such criteria and direction might be: Any actual breach of the
package, including involvement of the trailer in fire is to be considered an
Operational Emergency. Immediately notify (emergency duty officer) .
2. Order Example: Failures in safety systems threaten the integrity of a nuclear
weapon, component, or test device.
Possible Implementation Method:
! Provide drivers, dispatchers, escorts, and responsible program personnel
with criteria for determining emergency status of shipments. Such criteria
and direction might be incorporated within Transportation Safeguards
Division procedures for reporting and responding to abnormal conditions
that meet the “Broken Arrow” or “Bent Spear” description.
Section 33
3. Order Example: Damage to a nuclear explosive, nuclear explosive-like
assembly, or Category I/II quantity of Special Nuclear Materials as a result of a
transportation accident.
Possible Implementation Method:
Same as example 2 above.
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B.3 Determining Emergency Class Using Barrier State as a Measure of Safety
Degradation
This section will describe a method for using the condition or state of protective “barriers”
as a quantitative measure of facility or process safety degradation for purposes of
determining hazardous materials facility event class. The method can be adapted to a
broad range of facilities and processes and used to develop an internally consistent EAL
scheme for each major hazard at a DOE site.
The Order requires that hazardous materials Operational Emergencies involving or
affecting DOE facilities be placed in one of three classes by degree of severity. The
assigned emergency class should reflect the actual or potential consequences of the
situation. The Order emergency class definitions are stated in terms of “safety
degradation” and “actual or potential failure of safety functions,” as well as in units of
consequence (dose, exposure, or concentration).
In developing EALs, each facility must determine the observable conditions that equate to
various levels of “safety degradation.” The standard set of Example Initiating Conditions
provided by the NRC (In NUREG-0654 and in Industry Standard NUMARC/NESP-007)
defines the levels of degradation for commercial nuclear reactors in terms that are specific
to large light-water-cooled power reactors. This method has worked well for the
commercial nuclear industry because the facilities are quite homogeneous (i.e., virtually
every site has the same basic design features and similar organizational structure). To
provide technically consistent and coherent example initiating conditions for each type of
emergency at all the possible types of DOE hazardous materials facilities would be a
formidable task.
Lacking standard sets of example initiating conditions, facilities can develop coherent
systems to drive graded, anticipatory responses to threats, challenges, and failures. This is
done by viewing physical and administrative controls as the barriers that maintain
hazardous material in a safe condition and constructing the EAL scheme around the status
of those barriers. EAL schemes developed in this manner may be event-based but are
typically more symptom-based in nature. The character of the site-specific EAL scheme
will be largely dependent on the type and level of sophistication of installed systems that
monitor the barrier(s) status. In general, the more complete and quantitative the
information provided by monitoring systems, the more symptom-based the EAL scheme
can be. Conversely, if monitoring is largely dependent on staff observation of events, the
scheme will tend to be more event oriented.
B.3.1 Barrier Definition
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The various “layers of protection” afforded facility and site personnel, the general public
and the environment by the design and operational controls of each facility can be thought
of as barriers. Facility design features that contain hazardous materials or separate them
from people or the environment are physical barriers in the traditional sense. This concept
of barriers is the one typically applied when analyzing commercial nuclear reactor plants.
However, in order to develop a complete EAL scheme, barriers other than those of a
physical nature (such as administrative or procedural controls) may have to be considered.
Examples of various types of barriers are as follows.
Section 34
! Physical
– containments
– glove boxes
– binding agents
– confinements
– hot cells
– overpacks
– cylinders
– process piping
– shipping casks
– tanks
– tunnels/shafts
– building HVAC systems
! Configuration
– safe geometries
– segregated storage
– process controls
– temperature controls
– cryogenic traps
– humidity controls
– arming circuits
– security systems (e.g., cipher locks)
! Administrative
– procedural compliance
– inventory control
– two-man rules
– access controls
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– security and safeguards rules
– meteorological restrictions
– training
– knowledge
– line management oversight
B.3.2 Criteria For Failure and Challenge of Barriers
In order to develop EALs based on barrier condition, “barrier failure” and “barrier
challenge” must be defined. Failure of a barrier can usually be recognized by the readings
or output from plant instruments such as valve position indicators, failed fuel monitors,
pressure sensors, or stack effluent monitors. The criteria for declaring that a particular
barrier is failed should be stated in terms of specific values on specific instruments (e.g.,
“Main Stack RMS-19 indicates > 1.5E+8 uCi/sec,” or “Any Valve Position Indicator on
panel CI-903 indicates Open”).
To achieve an anticipatory and conservative declaration in the case where all indications of
a barrier's condition are lost during an upset condition or operating transient, it may be
necessary to consider the barrier to be failed until such time as conditions can be verified
satisfactory by other means (e.g., visual inspection, portable monitoring equipment, etc.).
For example, if following a building isolation signal the control room position indicators
for two of the ten installed isolation valves/dampers show neither an open or shut
indication, then the associated valves/dampers should be considered to be failed open until
such time as they can be verified shut by another method.
A barrier should be considered “threatened” or “challenged” if the events in progress may
result in a barrier failure. In general, classification should not be delayed by the
expectation that mitigating activities in progress are likely to correct the degraded
conditions. The EAL statements should take into account the likelihood that corrective
actions can and will be taken within the time necessary to prevent barrier failure such that
the decision is not left to user. For example, recognition of a fire that could challenge a
barrier may be a good basis for classifying the event at a level corresponding to failure of
that barrier. The degree of challenge is directly related to the duration of the fire (and thus
indicative of the success of mitigation efforts) and can be reflected in an EAL statement
such as “Fire in Zone 1 lasting more than 15 minutes,” where the 15 minutes is related to
the time that the barrier could remain intact under fire conditions.
B.3.3 EALs Based On Barrier Status
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A method of developing facility-specific EALs based on barrier status is outlined in the
following steps.
1. Identify, from the facility Hazards Assessment prepared in accordance with the
Order (and as further detailed in Volume II), the radiological and hazardous/toxic
materials sources of significant operational concern.
2. For each material and source (i.e., storage or process location), determine the
Section 35
highest possible emergency class from release of that material, as analyzed in the
facility Hazards Assessment.
3. Determine the physical, administrative, and configuration barriers between each of
the sources and the outside environment.
For the purposes of the EAL development process, it is unlikely that more than
three barriers (physical and other) can be reasonably credited for any hazard
source. For simplicity, no more than three overlying and independent barriers
should be considered. Justification for selecting barriers should be provided in an
accompanying technical basis document. For example, a building and its HVAC
system should not be considered a barrier unless the HVAC filtration system can
remove a high enough percentage of the material of interest during the maximum
credible release to prevent exceeding any exposure criterion at the facility
perimeter while maintaining a negative pressure in the building.
NOTE: This method is founded on the assumption that the barriers are
approximately equal in their safety significance. If the barriers
differ widely in the degree to which they ensure control over the
hazardous material, their failures (or challenges) cannot logically be
treated as equal safety decrements for purposes of assigning an
emergency class. No more than three most significant barriers
should be considered.
4. Develop facility-specific EALs for each hazardous material source at the facility
using the concepts of barriers “failed” or “challenged” as follows.
! Select the independent barriers (between the source and the environment)
for which credit will be taken.
! For each barrier selected, identify the symptoms or observable indications
of the barrier being either failed or challenged.
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! If all of the barriers are either failed or challenged, then the symptoms of
their challenge or failure, taken collectively, constitute an EAL for
declaring the highest emergency class, identified in Step 2 above. For
example, in the case of a hazardous material source that is capable of
producing a General Emergency and has three barriers preventing its
release, the comprehensive EAL set for the General Emergency class
would include indications of the following combinations.
– Three barriers failed.
– Two barriers failed, one barrier challenged.
– One barrier failed, two barriers challenged.
– Three barriers challenged.
! For the second and third combinations, there may be three permutations
each. For example, if A, B, and C designate the individual barriers, the
second combination (two barriers failed and one challenged), may be
either:
– A and B failed, C challenged, or
– A and C failed, B challenged, or
– B and C failed, A challenged.
! If all except one barrier is failed or challenged, the condition is classified at
one level lower than if all are failed or challenged. In the three barrier
examples cited above, the class would be Site Area Emergency and the
comprehensive EAL set for the Site Area Emergency class would include
indications of the following combinations:
– two barriers failed, one barrier intact and not challenged;
– one barrier failed, one barrier challenged, one barrier intact and not
challenged; and
– two barriers challenged, one barrier intact and not challenged.
Section 36
! If all except two barriers are failed or challenged, the condition is classified
two levels lower than if all are failed or challenged. For the three barrier
example cited above, the class would be Alert and the EALs for the Alert
classification would be based on indications of one barrier either failed or
challenged and two barriers intact and not challenged. This case requires
some special attention, since the purposeful and controlled breaching of a
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barrier (in a multiple barrier facility), such as the temporary opening of a
truck lock door or the performance of carefully planned maintenance
activities on a barrier, should not be considered a failure or challenge.
5. Events or conditions that represent a reduced margin of safety, but with no
predicted barrier failure or challenge in the next few hours, should be treated as an
Operational Emergency not requiring classification or under the DOE Occurrence
Reporting System (per DOE M 232.1-1), as applicable.
B.3.4 Examples of EALs Based On Barrier Failure and Challenge
The process described in the previous sections can be applied to hazard sources having
less than three barriers and sources for which the highest emergency class is Site Area
Emergency or Alert. In the example below, only two barriers exist, a single-wall chemical
process tank and the building within which it is located. The building can be sealed
against maximum credible pressures. It has been calculated that the maximum credible
release, a sudden complete breach of both the tank and the building, should be classified as
a Site Area Emergency. If the barriers are considered to be nearly equal in their safety
significance, their condition can be used as a measure of the degree of safety degradation,
and hence, as the basis for determining emergency class.
The EALs for Site Area Emergency should include indications of the following conditions.
! Two (both) barriers failed.
! One barrier failed, one barrier challenged.
! Two barriers challenged.
Likewise, the EALs for Alert should include indications of the following conditions.
! One barrier failed, one barrier intact and not challenged.
! One barrier challenged, one barrier intact and not challenged.
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Accordingly, Site Area Emergency EALs might read as shown in Table B.1.
Table B.1. Example Site Area Emergency EALs.
Two Barriers Failed As Indicated By
Tank 501A ruptured Any two building sump high alarms
OR
Tank 501A rapid level decrease
OR
monitor HF-23 >1000 PPM
OR
relief 501A-2 open
AND
Building 602 failed Visual observation
OR
one or more HVAC dampers not shut
OR
truck lock air seal failure alarm
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Table B.1. Example Site Area Emergency EALs (continued).
One Barrier Failed; One Challenged As Indicated By
Tank 501A ruptured Any two building sump high alarms
OR
Tank 501A rapid level decrease
OR
monitor HF-23 > 1000 PPM
OR
relief 501A-2 open
AND
Building 602 challenged Fire potentially degrading HVAC or door
seals
OR
HVAC air operating system pressure <85
PSIG
OR
Building 602 pressure >2“ H O2
OR
Building 602 failed Visual observation
OR
one or more HVAC dampers not shut
OR
truck lock air seal failure alarm
AND
Tank 501A challenged 501A pressure > 125 PSIG
OR
501A temperature > 355E F
OR
loss of cooling water flow to 501A
OR
Section 37
fire out of control in Building 602
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Table B.1. Example Site Area Emergency EALs (continued).
Two barriers challenged As Indicated By
Tank 501A challenged 501A pressure > 125 PSIG
OR
501A temperature > 355EF
OR
loss of cooling water flow to 501A
OR
fire out of control in Building 602
AND
Building 602 challenged Fire potentially degrading HVAC or door
seals
OR
HVAC air operating system pressure <85
PSIG
OR
Building 602 pressure >2" H O2
The example in Table B.1 represents only a subset of the possible EALs applicable to the
hypothetical facility. The EAL development process should attempt to define all of the
symptoms of failure or challenge to barriers. To the maximum extent possible, EALs
should be stated in terms of specific installed indications, such as individual fire alarm
panel temperature and ion detectors identified by zone, or process pressure and
temperature indicators identified by panel and instrument number. There are obviously
hazards capable of generating an Site Area Emergency or General Emergency to which
the barrier approach cannot be applied (e.g., a single-wall tank, in an open area, with little
or no remote instrumentation). The EALs for events impacting such a hazard are usually
worded to describe events, even though the events are really “single-barrier failures.”
It is essential that EALs be grouped and organized in a manner that is consistent with how
emergency events and conditions are likely to be recognized and perceived by facility staff
and decision makers. The groupings or categories of EALs should allow the intended user
to quickly identify the most likely EAL statement for a particular event or condition. The
completed EAL set should/will contain some redundancy among the sections, allowing the
same event to potentially be recognized by two or more EAL statements (e.g., Barrier
Status and Field Monitoring).
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Somewhere between 5 and 20 categories will serve the purposes of most facilities. If
more categories are used, the categories will tend to be more explicit and narrowly
defined. While it is easier for the user to understand and relate to more explicit individual
category titles, the resulting larger number of categories makes it more difficult for a user
to scan the entire EAL set and select the applicable statements in a limited time.
Example List of EAL Categories
The following list of 12 EAL categories covers a wide range of possible events and
conditions that could occur at a DOE facility.
! Barrier status.
! Radiological releases.
! Toxic or hazardous chemical releases.
! Fire or explosion.
! Electrical failures (power supply).
! Abnormal process system conditions (leakage, temperature, pressure, reaction
rates).
! Loss of control and indication features (automatic trips, indicating systems, safe.
shutdown systems).
! External events (man-made events).
! Security and safeguards events.
! Natural phenomena impacts.
! Criticality control.
! Miscellaneous.
Table B.2. provides an example of how the first EAL category, Barrier Status, can be
expanded, depending on the type of facility and the degree to which barrier status is used
to quantify the safety state of the facility and processes.
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Table B.2. Example EAL Sub-Categories for Category Number 1.
Section 38
Facility Type Possible Barrier-Status EAL Sub-Categories
Reactors Fuel cladding, reactor vessel and coolant piping,
confinement or containment building
Expended fuel Fuel cladding, storage building, and HVAC
system
Chemical/materials processes Tanks, pipes, traps, hot cells, building
and HVAC systems
Radwaste Binding/solidifying agent, drums and tanks,
buildings, geologic containments
Toxic material storage Tanks, cylinders, building, and HVAC system
Weapons and fissile material Configuration, arming features, assembly
facilities, geologic containment, configuration
controls
B.4 Hazardous Materials Facility EAL Organization and Format
As discussed in Section 3.4 of this chapter, facility-specific EALs must be organized into
an implementing procedure that is logical and comprehensive, yet concise and usable.
Example Emergency Action Levels For a Hypothetical Facility
Appendix D, Volume II, describes a hypothetical DOE facility and presents results of its
Hazards Assessment, including the emergency classes most appropriate to the analyzed
accidents or emergency events. The results of the accident/event consequence analyses
are summarized in Tables 6.1a-d, and examples of the technical basis arguments for
possible EALs are summarized in Section 8 of the appendix.
Table B.3 represents the culmination of the EAL development effort that began with the
facility Hazards Assessment. The “conceptual” EALs that were identified in the Hazards
Assessment process have been translated into specific EALs and presented in the form of
an emergency classification table for the hypothetical ABC Facility. The table is intended
to illustrate the following.
! How specific EALs can be developed from the results of the facility Hazards
Assessments.
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! Stating EALs in terms of the most objective observable conditions.
! Use of EAL categories to aid facility staff in identifying and applying the EALs
that are most applicable to an observed event or condition.
! One acceptable format and organization for an EAL table.
! The principle of redundancy (i.e., EALs in different categories that lead to
classification of an event at the same level, even if it is recognized by different
means).
! Integration of the EALs with the reportable occurrence and Operational
Emergency (not requiring classification) recognition procedures is left to the
individual site.
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Table B.3. Emergency Action Levels for the ABC Facility.
EAL As Indicated By Emergency Class
1. Barrier Status
1a. HF cylinder breached in Direct observation of breach General Emergency
warehouse or outside
1.b HF cylinder breached in Direct observation of cylinder Alert
operating corridor, HVAC breach
function maintained AND
at least one HVAC exhaust fan
running
AND
operating corridor pressure
indicator PI-xxxx reading negative
relative to atmospheric pressure
1.c One or more TDI drums Direct observation Site Area Emergency
breached in warehouse or
outside
1.d TDI drum breached in process Direct observation of TDI drum Site Area Emergency
area and HVAC function lost breach
AND
process area pressure indicator PI-
yyyy reading zero or positive
relative to atmospheric
1e. TDI drum breached in room Direct observation of TDI drum Alert
101; HVAC function breach
maintained AND
at least one HVAC exhaust fan
running
Section 39
AND
process area pressure indicator PI-
zzzz reading negative relative to
atmospheric
1.f One or more Pu nitrate bottles Direct observation of bottle breach Site Area Emergency
breached with vault (room
109) breached direct observation of vault outside
AND
wall breached
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Table B.3. Emergency Action Levels for the ABC Facility (continued).
EAL As Indicated By Emergency Class
1.g Pu nitrate bottle breached in Direct observation of bottle breach Alert
ABC building producing
airborne release stack alpha monitor indicating
AND
>3000 counts per minute
1.h Pu powder can breached Direct observation of powder can Alert
outside cell producing airborne breach
release AND EITHER
operating corridor CAM alarms
OR
stack alpha monitor indicates
>3000 counts per minute
2. Radiological Releases
2a. Stack release rate Stack alpha monitor indicates off- General Emergency
scale high >60,000 Bq/sec
OR
Pu-238 stack grab sample results
indicate >1E+4 Bq/m Pu-238 in3
effluent air at normal exhaust flow
rate
2b. Stack release rate exceeding Stack alpha monitor indicates Site Area Emergency
20,000 Bq/sec Pu-238 >1.2E+5 counts per minute
stack grab sample results indicate
OR
>3E+3 Bq/m Pu-238 in effluent3
air at normal exhaust flow rate
2c. Stack release rate exceeding Stack alpha monitor indicates Alert
4,000 Bq/sec >3E+4 counts per minute Pu-238
OR
stack grab sample results indicate
>8E+2 Bq/m in effluent air at3
normal exhaust flow rate
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Table B.3. Emergency Action Levels for the ABC Facility (continued).
EAL As Indicated By Emergency Class
2.d Any release of radioactive Sample or measurement of air General Emergency
1
material to atmosphere concentration outside the facility
producing actual or predicted taken in accordance with EPIP-38
dose to a person at or beyond
any site boundary in excess of prediction of committed dose
an applicable EPA PAG using the SUPERRAD model and
2
OR
actual dispersion conditions
2.e Any release of radioactive Sample or measurement of air Site Area Emergency
material to atmosphere concentration outside the facility
producing actual or predicted taken in accordance with EPIP-38
dose to a person at or beyond
any facility boundary, but not prediction of committed dose
beyond any site boundary, in using the SUPERRAD model and
excess of an applicable EPA actual dispersion conditions
PAG value
OR
2.f Any release of radioactive Sample or measurement of air Alert
material to atmosphere concentration outside of the
producing actual or predicted facility taken in accordance with
dose to a person boundary EPIP-38
>0.1 EPA PAG value at or
3
beyond any facility prediction of committed dose
OR
using the SUPERRAD model and
actual dispersion conditions
Note 1: EALs 2.d, 2.e, and 2.f are the generic equivalent to EALs 2.a, 2.b, and 2.c. They
allow for event classification based upon field measurement results or based on
dispersion calculations (e.g. stack monitor not available, etc.).
Note 2: The use of the procedure number in this EAL statement implies that the procedure
specifies the use of specific instrumentation for obtaining field samples and/or
measurements and that it provides the user with a method for relating the methodology
for relating the results to the applicable EPA PAGs.
Section 40
Note 3: The use of 0.1 EPA PAG for setting the Alert threshold is only intended to illustrate
the establishment of a facility-specific Alert threshold (see Section 3.3.2); it is not a
recommended generic value.
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Table B.3. Emergency Action Levels for the ABC Facility (continued).
EAL As Indicated By Emergency Class
3. Toxic or Hazardous Chemical Releases
3a. Contents of HF cylinder released Direct observation General Emergency
in warehouse or outside
3.b HF cylinder contents released in Direct observation release Alert
operating corridor, HVAC
function maintained at least one HVAC exhaust fan
AND
running
AND
operating corridor pressure indicator
PI-xxxx reading negative relative to
atmospheric pressure
3.c One or more TDI drums spilled Direct observation Site Area Emergency
in warehouse or outside
3.d TDI drum spilled in process area Direct observation of TDI spill Site Area Emergency
and HVAC function lost AND
process area pressure indicator PI-
yyyy reading zero or positive
relative to atmospheric
3.e TDI drum spilled in room 101, Direct observation of TDI drum Alert
HVAC function maintained breach
AND
at least one HVAC exhaust fan
running
AND
process area pressure indicator PI-
zzzz reading negative relative to
atmospheric
3.f Any release of hazardous Sample or measurement of air General Emergency
1
chemical to atmosphere that concentration in accordance with
produces actual or predicted EPIP-42
peak concentration at or beyond
any site boundary in excess of prediction of air concentration using
the ERPG-2, or equivalent, the SUPER model and actual
value for that chemical. dispersion conditions
2
OR
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Table B.3. Emergency Action Levels for the ABC Facility (continued).
EAL As Indicated By Emergency Class
3.g Any release of hazardous Sample or measurement of air Site Area Emergency
chemical to atmosphere concentration in accordance with
producing actual or predicted EPIP-42
peak concentration at or
beyond any facility boundary, prediction of air concentration
but not beyond any site using the SUPER model and
boundary, in excess of the actual dispersion conditions
ERPG-2, or equivalent, value
for that chemical
OR
3.h Any release of hazardous Sample or measurement of air Alert
producing actual or predicted concentration in accordance with
peak concentration at or EPIP-42
beyond any facility boundary,
but not beyond any site prediction of air concentration
boundary, in excess of the using the SUPER model and
ERPG-1 , or equivalent, value actual dispersion conditions
3
for that chemical
OR
Note 1: EALs 3.f, g, and h are the generic equivalents to EALs 3.a, b, c and d. They allow for event
classification based upon field measurement results or based upon dispersion calculations.
Note 2: The use of the procedure number in this EAL statement implies that the procedure specifies
the use of specific instrumentation for obtaining field samples and/or measurements and that
it provides the user with a method for relating the methodology for relating the results to the
applicable ERPG or equivalent value.
Note 3: The use of ERPG-1 for setting the Alert threshold is only intended to illustrate the
establishment of a facility-specific Alert threshold (see Section 3.3.2); it is not a
recommended generic value.
4. Fire or Explosion
Section 41
4a. Fire in warehouse not Direct observation of flames or General Emergency
extinguished by automatic smoke
suppression systems OR
fire alarm on zone 4
AND
fire not extinguished by automatic
suppression systems
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Table B.3. Emergency Action Levels for the ABC Facility (continued).
EAL As Indicated By Emergency Class
4b. Fire or explosion in cell B with Direct observation of fire or Site Area Emergency
release from cell. explosion in cell B
OR
cell B fire suppression system alarm
initiates on Panel ABC-0123
AND
alarm on operating corridor CAM-
xxx-01
4c. Fire in room 101 Direct observation of flames or Alert
smoke in room 101
OR
fire alarm on zone 8
AND
fire not extinguished by automatic
suppression systems
4d. Fire or explosion in room 101 Direct observation of flames or Alert
that breaches building integrity explosion
OR
fire alarm on zone 8
AND
direct observation of penetration of
exterior wall within 5 minutes of
first alarm or observation
5. Electrical Failures (power supply)
5a. Loss of AC power for more than ABC Vital Equipment Bus voltage Alert
10 minutes less than 450 volts on distribution
panel ABC-56-78 for >10 minutes
6. Abnormal Process System Conditions
6a. Collapse of Pu nitrate storage Direct observation of rack collapse Alert
rack with breach of bottle(s) and breach of one or more nitrate
bottles
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Table B.3. Emergency Action Levels for the ABC Facility (continued).
EAL As Indicated By Emergency Class
6b. Over temperature condition in High temperature alarm on Alert
process no. 1 polymer reactor process annunciator T-4
TI-1234 indicates >400EC
AND EITHER
OR
combustion product sensor alarm
on process annunciator T-6
7. Loss of Control and Indication Features
7a. Stack monitor not operable Stack Monitor Failure alarm on Alert
during upset condition building annunciator M-11
OR
stack monitor determined by
inspection to be out of service
AND EITHER
any ABC Building CAM in alarm
state
OR
fire alarm: zone 1, 2, 3, 5, 6 or 8
OR
any explosion or missile damage
to process No. 2 areas
7b. Loss of power to process no.1 Direct observation of control and Alert
control and annunciator of annunciator panel loss
power panel during production
run process no. 1 Control Power
OR
Failure alarm on Building
Annunciator P-009
AND
polymer mixing/extrusion run in
progress
7c. Cell pressure control lost Alarm on Cell A/B/C diff. Unusual Occurrence
causing Pu release to operating pressure annunciator
corridor AND
alarm on any Cell A/B/C operating
corridor CAM
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Table B.3. Emergency Action Levels for the ABC Facility (continued).
EAL As Indicated By Emergency Class
8. External Events
8a. Aircraft crash within ABC Direct observation Alert
Protected area
8b. Any external impact on the Direct observation Alert
ABC building that breaches a
building wall or causes fire
8c. Any external event that forces Process no. 1 production run in Alert
evacuation of the ABC progress
Building during process no. 1
production run ABC Building evacuation ordered
AND
by Building Emergency Director
9. Security and Safeguards Events
9a. Sabotage of HF cylinder(s) Direct observation General Emergency
9b. Physical control of any part of Direct observation General Emergency
ABC Facility lost to armed
intruder(s)
Section 42
9c. Unauthorized person in ABC Unauthorized person observed in Site Area Emergency
Facility security controlled area warehouse or ABC Building
with evidence of malevolent proper
intent. AND EITHER
evidence of tampering with any
lock, seal or access control device
OR
evidence of sabotage to any
hazardous material storage area or
container, safety system or control
system
9d. Unauthorized person in any Direct observation Alert
part of ABC facility AND
intruder resists or avoids attempt
by facility staff to identify and
apprehend
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Table B.3. Emergency Action Levels for the ABC Facility (continued).
EAL As Indicated By Emergency Class
10. Natural Phenomena Impacts
10a. Earthquake exceeding ABC Site seismic monitoring station Alert
Facility design basis is reports ground acceleration in
experienced excess of 0.20 g horizontal or 0.12
g vertical has been recorded
10b. Winds exceeding ABC Facility Site meteorological station reports Alert
design basis observed wind speed in excess of
110 km/hr at station 4
OR
direct observation of winds
causing structural damage to ABC
Building or warehouse
10c. Flood exceeding facility Site meteorological station Alert
design basis predicts river level to exceed 490-
ft elevation within 24 hours
10d. Snowfall approaching roof Accumulation of >18 in. of snow Alert
design load limits on facility roof
11. Criticality Control
---------------------------------------------------NONE------------------------------------------------
12. Miscellaneous
12a. Any degradation of safety not Shift Manager judgment Alert; Site Area
otherwise directly covered in Emergency; General
other specific EALs Emergency
Acronyms
HAZMAT Hazardous Materials
MC&A Materials Control and Accountability
RQ Reportable Quantity
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