EP Study Guide

Question 1

Notification of Unusual Event (NUE)

Answer 1

indicate a potential degradation of the level of safety of the plant or indicate a security threat to facility protection has been initiated. No releases of radioactive material

Question 2

Alert Emergency

Answer 2

• involve an actual or potential substantial degradation of the level of safety of the
  plant or a security event that involves probable life threatening risk to site personnel or damage to site
  equipment. Any releases of radioactive material for the Alert classification are expected to be limited to
  small fractions

Question 3

Site Area Emergency

Answer 3

major failures of plant functions needed for protection of the public from
radiation or contamination or hostile action that results in intentional damage or malicious acts; (1)
toward site personnel or equipment that could lead to the likely failure of or; (2) prevent effective
access to, equipment needed for the protection of the public. Any releases of radioactive material for
the SAE classification are not expected to exceed EPA PAG exposure levels except near the site
boundary.

Question 4

General Emergency

Answer 4

actual or imminent substantial core degradation or melting with potential loss of
containment integrity or hostile action that results in an actual loss of physical control of the facility.
Release of radioactive material for the General Emergency classification can reasonably be expected to
exceed EPA PAG exposure levels offsite for more than the immediate site area.

Question 5

Event/ Notification timeline

Answer 5

From the initiating event, 15 min to declare.
From declaring, 
- 10 min -- plant page
- 10 min -- ERO activation
- 15 min -- state and local
- 15 min -- PARS (General)
- 30 min -- Site Accountability ( security) 
-60 min -- NRC
- 75 min -- Activate ERFs (>= Alert)
From terminating event, 
- 15 min -- state & local
- immediately after notifying state & local -- notify NRC.

Question 6

Emergency Response Facilities

Answer 6

 Required to be activated within 75 minutes of emergency declaration.
 Alternate facilities – TSC is Main Control Room, OSC is Classroom 172 in simulator building
——EOF (Birmingham) has no alternate facility
 Facilities manned at Alert and higher i.e.
 TSC sets priority for work assignments
 OSC briefs workers and tracks personnel sent into field

Question 7

Facilities manned at Alert and higher

Answer 7

Classification – ERF – ERO
NUE – Control Room Only – Optional
ALERT – Control Room, TSC, OSC, &EOF – Mandatory
Site-Area – Control Room, TSC, OSC, &EOF – Mandatory
GENERAL – Control Room, TSC, OSC, &EOF – Mandatory

Question 8

Emergency Director

Answer 8

 Control Room ED will be the Emergency Director at onset of the event.
o Normally Shift Manager but may be Shift Supervisor
 When TSC is activated, TSC ED will relieve Control Room ED
 ED has non-delegable duties
o Event classification
o PARs
o Notification of offsite agencies and approval of state, local, and NRC notifications
o Authorization of emergency exposure in excess of federal limits
o Issuance of KI tablets
o Requesting federal assistance

Question 9

PA Announcements

Answer 9

 PA announcements are governed by NMP-EP-142 Forms
o Security must merge the page system
o Separate script for each classification
o Security event announcement scripts are controlled by 34AB-Y22 procedure
o First announcement expected within 10 minutes
o Follow-up announcement every 60 minutes until emergency termination
o Tone optional on Alert and required on Site Area and General
 Red light in high noise areas activated when Tone activated
 Security informs personnel in areas where Page does not exist
o Non-emergency staff evacuation of PA (Assembly) optional on Alert and required on Site Area and General
o Evacuation of plant site with or without monitoring optional on Alert and required on Site Area and General

Question 10

Accountability

Answer 10

Security Supervisor Ensures site accountability and access control are maintained. Accountability is due within 30 minutes of declaration of a SAE or higher

Question 11

Event Classification

Answer 11

 Required within 15 minutes of event
 Follow Hot or Cold Initiation charts
o Read chart left to right, top to bottom
o Utilize bases document
o Unless modified by a Note (usually note 1) don’t classify early, only classify once you
cross the IC threshold
 Do not downgrade a classification, once it goes up, you either stay at that level or you
terminate.
o Termination of anything besides NUE requires offsite concurrence

Question 12

Met Data

Answer 12

 100m tower is primary tower
o Has instrumentation at 10m, 60m, and 100m
o Has Wind Speed/Direction, has temp delta between 10-60 and 10-100m
o Has Dewpoint at 10m
o Has Ambient temp at 10m
o Has Precipitation at ground level
 45m tower is backup tower
o Has instrumentation at 10m and 45m
o Does NOT have precipitation measurement or dewpoint
o All other indications are basically the same Wind speed, direction, deta temp, and
ambient temp
 Displays can be read at SPDS. Also available at MCR on panel 1H11-P689/690

Question 13

Protective Actions

Answer 13

 Directed by Emergency Director when Site Area or higher classified
o Accountability

o Evacuation

o Habitability

o Emergency Exposure Limits

o KI tablets

o Offsite PARs

Question 14

Evacuation

Answer 14

 Site Evacuation is required on SAE or higher
 15-minute wind direction at height of release used to determine evacuation route
 10m for Ground and 100m for Elevated Release
 Use chart in NMP-EP-144 to determine evacuation route
 Rally point and exit point are same terms
 Either PESB or Gate 17
 Site evacuation without release in progress go either North or South on US1
 Site evaluation with release in progress, evacuation route determined by wind direction.

Question 15

Habitability

Answer 15

 Performed by RP and used to ensure personnel do not exceed limits.

Question 16

Emergency Exposure Limits

Answer 16

 If exceeding 10CFR20 Limits, must be approved by ED
Dose Limit – Activity – Condition
5 REM – ALL – N/A
10 REM – Protecting valuable property – Lower dose not practicable
25 REM – Lifesaving or protection of large populations – Lower dose not practicable
>25 to 100 REM – Lifesaving or protection of large populations – Only on a voluntary basis to persons fully aware of the risks involved

Question 17

KI tablets

Answer 17

 Only upon approval by ED

 Projection that thyroid will exceed 25 Rem or greater

Question 18

Offsite PARs

Answer 18

 Only developed for General Emergencies
 Radiological Fast Breaker
 General Emergency is declared and this is the first PARs developed
 Loss of containment barrier per EAL
 Greater than or equal to containment high range area rad monitor
potential loss EAL threshold crossed (26,000 R/hr) (20% clad damage)
OR significant release > PAG at site boundary in an hour or less
o PAGs = 1 Rem TEDE or 5 Rem CDE Thyroid
o PAG limits are the dose that will be received in a four-hour period
 Use PAR development flowchart in NMP-EP-144.
 Be cautious of the different PAR determination charts for each plant.
 Note the box to continue assessment and expand PAR only to
downwind sector zones where PAGs could be released
 Impediments to evacuation includes PUFF release and onsite hostile action
events
 Puff Release is a controlled release that is projected to exceed the PAGs
and will be terminated in less than an hour or an uncontrolled release
that was projected to exceed the PAGs and has been terminated. If
duration or magnitude of release is unknown, assume it is not a Puff
Release.
 Follow-up PARs are required
 Once evacuation PAR is given, it can’t be changed to a shelter PAR
 When evaluating follow-up PARs, affected downwind sector zones
SHALL only be added when radiological assessments show EPA PAGs will
be exceeded in that sector or there is a containment barrier challenge.
 Follow-up required for wind shifts and during follow up notifications.