View source for 0CAN121102, Proposed Emergency Action Levels Using NEI 99-01 Revision 5 Scheme

{{Adams
| number = ML113350317
| issue date = 12/01/2011
| title = Proposed Emergency Action Levels Using NEI 99-01 Revision 5 Scheme
| author name = Pyle S
| author affiliation = Entergy Operations, Inc
| addressee name = 
| addressee affiliation = NRC/NRR, NRC/Document Control Desk
| docket = 05000313, 05000368
| license number = DPR-051, NPF-006
| contact person = 
| case reference number = 0CAN121102
| document type = Emergency Preparedness-Emergency Plan Implementing Procedures, Letter type:
| page count = 390
}}

=Text=
{{#Wiki_filter:Entergy Operations, Inc.
1448 S.R. 333 Russellville, AR 72802 Tel 479-858-4704 Stephenie L Pyle Manager, Licensing Arkansas Nuclear One 0CAN121102 December 1, 2011 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

==SUBJECT:==
Proposed Emergency Action Levels Using NEI 99-01 Revision 5 Scheme Arkansas Nuclear One - Units 1 and 2 Docket Nos. 50-313 and 50-368 License Nos. DPR-51 and NPF-6

==References:==
: 1. Letter from Christopher G. Miller (U.S. Nuclear Regulatory Commission) to Alan Nelson (Nuclear Energy Institute) - U.S. Nuclear Regulatory Commission Review and Endorsement of NEI 99-01, Revision 5, dated February 2008, dated February 22, 2008 (ML080430535)
: 2. Entergy letter dated July 18, 2011, Proposed Emergency Action Levels Using NEI 99-01 Revision 5 Scheme, TAC Nos. ME6719 and 6720 (ML112000124) (0CAN071102)
: 3. Entergy letter dated July 27, 2011, Supplement to Proposed Emergency Action Levels Using NEI 99-01 Revision 5 Scheme, TAC Nos. ME6719 and ME6720 (ML112082804) (0CAN071105)

==Dear Sir or Madam:==

Pursuant to 10 CFR 50, Appendix E, Section IV.B(1), Entergy Operations, Inc. (Entergy) hereby requests NRC review and approval of the Arkansas Nuclear One (ANO) proposed revision to the Emergency Plan (EP) Emergency Action Levels (EALs). The proposed changes involve revisions to ANOs current EP EAL scheme which is based on NUREG 0654, Criteria for Preparation and Evaluation of Radiological Emergency Response Plans and Preparedness in Support of Nuclear Power Plants (the current implemented version of the EALs at ANO).
Entergy is proposing to adopt the EAL scheme based on the guidance provided in NEI 99-01, Revision 5, which has been endorsed by the NRC in Reference 1 above.
By Reference 2, as supplemented by Reference 3, Entergy submitted a request for NRC review and approval of the ANO proposed revision to the EP EALs. Following these submittals, ANO began development of Operator training modules that would be used to familiarize station Operators with the new EAL schemes. In so doing, changes were identified with regard to the

0CAN121102 Page 2 of 2 original ANO submittal (Reference 2) that were found to be necessary to support proper implementation of the new EAL schemes, once approved. This submittal, therefore, supersedes the previous submittals described in References 2 and 3 above, and includes the changes identified during the aforementioned development of Operator training modules.
Based on the above, Entergy requests the Reference 2 and 3 submittals be withdrawn from NRC review. Upon NRC approval of the EP EAL changes included in this submittal, Entergy requests a period of 6 months to implement the change.
This letter contains no new commitments. If you have any questions or require additional information, please contact me.
Sincerely, Original signed by Stephenie L. Pyle SLP/dbb Attachments:     1. NEI 99-01 Revision 5 Deviation-Difference Document
: 2. Proposed Technical Basis Document (Markup)
: 3. Proposed Technical Basis Document (Clean)
: 4. Proposed EAL Matrix Chart and Review Table (for information)
: 5. Supporting Referenced Document Pages cc:     Mr. Elmo Collins Regional Administrator U. S. Nuclear Regulatory Commission Region IV 612 E. Lamar Blvd., Suite 400 Arlington, TX 76011-4125 NRC Senior Resident Inspector Arkansas Nuclear One P.O. Box 310 London, AR 72847 U. S. Nuclear Regulatory Commission Attn: Mr. Kaly Kalyanam MS O-8 B1 One White Flint North 11555 Rockville Pike Rockville, MD 20852

Attachment 1 to 0CAN121102 NEI 99-01 Revision 5 Deviation-Difference Document to 0CAN121102 Page 1 of 110 ARKANSAS NUCLEAR ONE DEVIATIONS AND DIFFERENCES FROM NEI 99-01, REV 5 EMERGENCY ACTION LEVELS to 0CAN121102 Page 2 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document INTRODUCTION This document presents the Arkansas Nuclear One (ANO) site-specific deviations and differences from the Nuclear Energy Institute (NEI) 99-01, Revision 5, Emergency Action Levels (EALs).
The following definitions from Supplements 1 and 2 to Regulatory Information Summary (RIS) 2003-18 were used when determining the categorization of differences between the NEI 99-01, Revision 5, Initiating Conditions (ICs) and example EALs, and the proposed ANO ICs and EALs:
Deviation:     An EAL change where the basis scheme guidance (NUREG, Nuclear Management and Resources Council, NEI) differs in wording and is altered in meaning or intent, such that the classification of the event could be different between the basis scheme guidance and the site-specific proposed EAL.
Examples of deviations include the use of altered mode applicability, altering key words or time limits, or changing words of physical reference (protected area, safety-related equipment, etc.).
There are no deviations in the ANO proposed EAL scheme.
Difference:    A difference is an EAL change where the basis scheme guidance differs in wording, but agrees in meaning and intent, such that classification of an event would be the same, whether using the basis scheme guidance or the site-specific proposed EAL. Examples of differences include the use of site-specific terminology or administrative re-formatting of site-specific EALs.
Administrative changes that do not actually change the text are neither differences nor deviations. Likewise, any format change that does not alter the wording of the IC or EAL is considered neither a difference nor a deviation.
Formatting such as ALL CAPS, bold, and underline is utilized to aid the user in applying these EALs, particularly to set apart units, time frames, or quality of a value or data (such as the term valid). Such formatting is neither a deviation nor a difference in accordance with the definitions provided above because it does not alter the wording of the IC or EAL.
In addition, due to the nature of this submittal acronyms in the EALs are not necessarily defined.
to 0CAN121102 Page 3 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document The following differences are generic in nature and apply throughout the proposed ANO EALs:
: 1. In general, NEI 99-01, Revision 5, bases developer notes are not included in the ANO bases, but were used in their development. NEI 99-01, Revision 5, developer note bases information was selectively provided in the ANO bases where it was viewed that the developer notes would provide useful training information or aid the decision maker in evaluating the event. In some cases, these developer notes are reworded from the NEI 99-01 EALs, but the intent is retained.
: 2. Formatting choices may also involve minor grammatical differences between the ANO EALs and NEI 99-01 such as that exceeds vice exceeding, use of If, then statements for conditional statements, or the use of symbols (>, <). Such formatting differences between the ANO EALs and NEI 99-01 are not noted in this document as differences or deviations when they represent format choices alone and do not change the intent or materially change the content of NEI 99-01 ICs or EALs.
: 3. At ANO, the emergency classification of Notification of Unusual Event is indicated by Notification of Unusual Event or the abbreviation NUE.
: 4. At ANO, the Radiological Effluent Technical Specifications (RETS) are included in the Offsite Dose Calculation Manual (ODCM); therefore, ODCM is used in place of references to RETS.
: 5. Shift Manager (SM)/Technical Support Center (TSC) Director/Emergency Operations Facility (EOF) Director or SM is used instead of Emergency Director.
: 6. Safeguards Contingency Plan is the term used to encompass all security plans/documents.
: 7. At ANO the refueling canal performs the functions of the reactor refueling cavity and fuel transfer canal.
: 8. The term reactor vessel was used in place of reactor pressure vessel (RPV).
: 9. The term release permit was used in place of radioactivity discharge permit.
: 10. In the Fission Product Barrier EALs, the EAL numbers are preceded by FCB for the Fuel Clad Barrier EALs, RCB for the Reactor Coolant System (RCS) Barrier EALs, and CNB for the Containment Barrier EALs.
: 11. The term threshold is not used in every case as it is used in NEI 99-01. Replacement terms such as EAL are used as necessary based on context.
to 0CAN121102 Page 4 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: AU1 Any release of gaseous or liquid radioactivity to the environment greater than 2 times the RETS/ODCM for 60 minutes or longer Operating Mode Applicability:                All Example Emergency Action Levels:             (1 or 2 or 3 or 4 or 5)
Note:     The Emergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the release duration has exceeded or will likely exceed, the applicable time. In the absence of data to the contrary, assume that the release duration has exceeded the applicable time if an ongoing release is detected and the release start time is unknown.
: 1. VALID reading on ANY of the following radiation monitors greater than the reading shown for 60 minutes or longer:
(site-specific monitor list and threshold values)
: 2. VALID reading on any effluent monitor reading greater than 2 times the alarm setpoint established by a current radioactivity discharge permit for 60 minutes or longer.
: 3. Confirmed sample analyses for gaseous or liquid releases indicates concentrations or release rates greater than 2 times (site-specific RETS values) for 60 minutes or longer.
: 4. VALID reading on perimeter radiation monitoring system greater than 0.10 mR/hr above normal* background for 60 minutes or longer. [for sites having telemetered perimeter monitors]
: 5. VALID indication on automatic real-time dose assessment capability indicating greater than (site-specific value) for 60 minutes or longer. [for sites having such capability]
* Normal can be considered as the highest reading in the past twenty-four hours excluding the current peak value.
to 0CAN121102 Page 5 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: AU1 Any release of gaseous or liquid radioactivity to the environment > 2 times the ODCM limits for 60 minutes Operating Mode Applicability:        All Emergency Action Level(s):           (1 or 2 or 3)
Note:   The SM should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the release duration has exceeded, or will likely exceed, the applicable time. In the absence of data to the contrary, assume that the release duration has exceeded the applicable time if an ongoing release is detected and the release start time is unknown.
: 1. VALID reading on Channel 7 on any of the following radiation monitors > the reading shown for  60 minutes:
MONITORS - UNIT 1                      LIMIT RX-9820                 Containment Purge                5.90E-2 &#xb5;Ci/cc RX-9825                   Radwaste Area                  5.36E-2 &#xb5;Ci/cc RX-9830                 Fuel Handling Area               4.54E-2 &#xb5;Ci/cc RX-9835           Emergency Penetration Room             9.56E-1 &#xb5;Ci/cc MONITORS - UNIT 2                      LIMIT 2RX-9820                 Containment Purge                4.46E-2 &#xb5;Ci/cc 2RX-9825                   Radwaste Area                  3.32E-2 &#xb5;Ci/cc 2RX-9830                 Fuel Handling Area               4.46E-2 &#xb5;Ci/cc 2RX-9835           Emergency Penetration Room             8.84E-1 &#xb5;Ci/cc 2RX-9840          Post Accident Sampling Building         4.42E-1 &#xb5;Ci/cc 2RX-9845              Aux. Building Extension             1.26E-1 &#xb5;Ci/cc 2RX-9850       Low-Level Radwaste Storage Building        1.77E-1 &#xb5;Ci/cc OR to 0CAN121102 Page 6 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: AU1 (Contd)
: 2. VALID reading on any of the following radiation monitors > 2 times the alarm setpoint established by a current release permit for  60 minutes:
EFFLUENT MONITORS - Unit 1 RX-9820                 Containment Purge (Channel 7 or 9)
RE-4830                     Waste Gas Radiation Monitor RE-4642                       Liquid Radwaste Monitor EFFLUENT MONITORS - Unit 2 2RX-9820                 Containment Purge (Channel 7 or 9) 2RE-2429         Waste Gas Decay Tank Vent Line Radiation Monitor 2RE-2330               Regenerative Waste Discharge Monitor 2RE-4423                 Radwaste Liquid Discharge Monitor 2RE-4425              SG Blowdown to Flume Radiation Monitor OR
: 3. Confirmed grab sample analyses for gaseous or liquid releases indicates concentrations or release rates > 2 times the applicable values of the ODCM for  60 minutes.
Deviations:
None.
Differences:
The second (superfluous) reading is deleted in ANO EAL #2.
The radiation monitor channel is identified in EAL #1 in order to provide site-specific detail.
A table is provided in the EAL document that lists the applicable radiation monitors for EAL #2.
ANO has installed telemetered perimeter monitoring devices. These devices, however, are neither qualified nor intended to provide an accurate indication of the dose rate at the perimeter of the site. They are only intended to provide early indication of a potential unmonitored offsite release. Therefore, ANO has not included an EAL comparable to NEI 99-01 Revision 5 AU1 EAL #4.
The Radiological Dose Assessment Computer System (RDACS) is ANOs current real-time dose assessment system, but is out-dated. RDACS is currently scheduled to be replaced prior to implementation of the new EALs with a system that is not a real-time system; therefore, an EAL comparable to NEI 99-01, Revision 5, AU1 EAL #5 has not been included.
to 0CAN121102 Page 7 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: AU2 UNPLANNED rise in plant radiation levels Operating Mode Applicability:                  All Example Emergency Action Levels:               (1 or 2)
: 1. a. UNPLANNED water level drop in a reactor refueling pathway as indicated by (site-specific level or indication).
AND
: b. VALID Area Radiation Monitor reading rise on (site-specific list).
: 2. UNPLANNED VALID Area Radiation Monitor readings or survey results indicate a rise by a factor of 1000 over normal* levels.
* Normal can be considered as the highest reading in the past twenty-four hours excluding the current peak value.
to 0CAN121102 Page 8 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: AU2 UNPLANNED rise in plant radiation levels Operating Mode Applicability:          All Emergency Action Level(s):             (1 or 2)
: 1. a. UNPLANNED lowering of water level in the refueling canal or spent fuel pool as indicated by:
Personnel observation, refueling crew report, indication on area security camera, borated water source (BWST or RWT) level drop due to makeup demands.
AND
: b. VALID Area Radiation Monitor reading rise on any of the following:
Unit 1 RE-8009         Spent Fuel Area RE-8017         Fuel Handling Area Unit 2 2RE-8914         Spent Fuel Area 2RE-8915         Spent Fuel Area 2RE-8916         Spent Fuel Area 2RE-8912         Containment Incore Instrumentation OR
: 2. UNPLANNED VALID Area Radiation Monitor readings or survey results indicate a rise by a factor of 1000 over normal* levels NOTE: For area radiation monitors with ranges incapable of measuring 1000 times normal* levels, classification shall be based on valid full scale indication unless surveys confirm that area radiation levels are below 1000 times normal* within 15 minutes of the Area Radiation Monitor indications going to full scale indication.
* Normal can be considered as the highest reading in the past twenty-four hours excluding the current peak value.
Deviations:
None.
to 0CAN121102 Page 9 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: AU2 (Contd)
Differences:
A note is added to EAL #2 to address the condition where 1,000 times normal levels may provide a value beyond the upper range of the applicable Area Radiation Monitor.
to 0CAN121102 Page 10 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: AA1 Any release of gaseous or liquid radioactivity to the environment greater than 200 times the RETS/ODCM for 15 minutes or longer Operating Mode Applicability:                All Example Emergency Action Levels:             (1 or 2 or 3 or 4 or 5)
Note:     The Emergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the release duration has exceeded, or will likely exceed, the applicable time. In the absence of data to the contrary, assume that the release duration has exceeded the applicable time if an ongoing release is detected and the release start time is unknown.
: 1. VALID reading on ANY of the following radiation monitors greater than the reading shown for 15 minutes or longer:
(site-specific monitor list and threshold values)
: 2. VALID reading on any effluent monitor reading greater than 200 times the alarm setpoint established by a current radioactivity discharge permit for 15 minutes or longer.
: 3. Confirmed sample analyses for gaseous or liquid releases indicates concentrations or release rates greater than 200 times (site-specific RETS values) for 15 minutes or longer.
: 4. VALID reading on perimeter radiation monitoring system reading greater than 10.0 mR/hr above normal* background for 15 minutes or longer. [for sites having telemetered perimeter monitors]
: 5. VALID indication on automatic real-time dose assessment capability indicating greater than (site-specific value) for 15 minutes or longer. [for sites having such capability]
* Normal can be considered as the highest reading in the past twenty-four hours excluding the current peak value.
to 0CAN121102 Page 11 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: AA1 Any release of gaseous or liquid radioactivity to the environment > 200 times the ODCM limits for  15 minutes Operating Mode Applicability:         All Emergency Action Level(s):            (1 or 2 or 3)
Note:     The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed but should declare the event as soon as it is determined that the release duration has exceeded, or will likely exceed, the applicable time. In the absence of data to the contrary, assume that the release duration has exceeded the applicable time if an ongoing release is detected and the release start time is unknown.
: 1. VALID reading on Channel 7 on any of the following radiation monitors > the reading shown for  15 minutes:
MONITORS - UNIT 1                       LIMIT RX-9820                Containment Purge                5.90E0 &#xb5;Ci/cc RX-9825                  Radwaste Area                  5.36E0 &#xb5;Ci/cc RX-9830                Fuel Handling Area               4.54E0 &#xb5;Ci/cc RX-9835          Emergency Penetration Room            9.56E+1 &#xb5;Ci/cc MONITORS - UNIT 2                       LIMIT 2RX-9820                Containment Purge                4.46E0 &#xb5;Ci/cc 2RX-9825                  Radwaste Area                  3.32E0 &#xb5;Ci/cc 2RX-9830                Fuel Handling Area               4.46E0 &#xb5;Ci/cc 2RX-9835           Emergency Penetration Room           8.84E+1 &#xb5;Ci/cc 2RX-9840          Post Accident Sampling Building       4.42E+1 &#xb5;Ci/cc 2RX-9845              Aux. Building Extension           1.26E+1 &#xb5;Ci/cc 2RX-9850      Low-Level Radwaste Storage Building       1.77E+1 &#xb5;Ci/cc OR to 0CAN121102 Page 12 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: AA1 (Contd)
: 2. EITHER VALID reading on any of the following radiation monitors > 200 times the alarm setpoint established by a current release permit for  15 minutes OR VALID reading greater than the value listed for  15 minutes:
MONITORS - UNIT 1                        LIMIT RX-9820                Containment Purge (Channel 7 or 9)              N/A RE-4830                  Waste Gas Radiation Monitor                9.5E7 cpm RE-4642                    Liquid Radwaste Monitor                  9.5E7 cpm MONITORS - UNIT 2                        LIMIT 2RX-9820               Containment Purge (Channel 7 or 9)              N/A 2RE-2429       Waste Gas Decay Tank Vent Line Radiation Monitor     9.5E5 cpm 2RE-2330                 BMS Liquid Discharge Monitor               9.5E5 cpm 2RE-4423             Regenerative Waste Discharge Monitor           9.5E5 cpm 2RE-4425            SG Blowdown to Flume Radiation Monitor          9.5E5 cpm OR
: 3. Confirmed grab sample analyses for gaseous or liquid releases indicates concentrations or release rates > 200 times the applicable values of the ODCM for  15 minutes.
Deviations:
None.
to 0CAN121102 Page 13 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document Differences:
The radiation monitor channel is identified in EAL #1 in order to provide site-specific detail.
The second (superfluous) reading is deleted in the ANO EAL #2.
EAL #2 and its associated basis information are revised and a table added to provide site-specific information for radiation monitors that may not be capable of providing values within the calibrated range of the monitor at or above the 200 multiple for an alarm setpoint established by a radioactivity discharge permit.
ANO has installed telemetered perimeter monitoring devices. These devices, however, are neither qualified nor intended to provide an accurate indication of the dose rate at the perimeter of the site. They are only intended to provide early indication of a potential unmonitored offsite release. Therefore, ANO has not included an EAL comparable to NEI 99-01, Revision 5, AA1 EAL #4.
The Radiological Dose Assessment Computer System (RDACS) is ANOs current real-time dose assessment system, but is out-dated. RDACS is currently scheduled to be replaced prior to implementation of the new EALs with a system that is not a real-time system; therefore, an EAL comparable to NEI 99-01, Revision 5, AU1 EAL #5 has not been included.
to 0CAN121102 Page 14 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: AA2 Damage to irradiated fuel or loss of water level that has resulted or will result in the uncovering of irradiated fuel outside the reactor vessel Operating Mode Applicability:                  All Example Emergency Action Levels:               (1 or 2)
: 1. A water level drop in the reactor refueling cavity, spent fuel pool or fuel transfer canal that will result in irradiated fuel becoming uncovered.
: 2. A VALID alarm or (site-specific elevated reading) on ANY of the following due to damage to irradiated fuel or loss of water level.
(site-specific radiation monitors)
ANO: AA2 Damage to irradiated fuel or loss of water level that has resulted or will result in the uncovering of irradiated fuel outside the reactor vessel Operating Mode Applicability:            All Emergency Action Level(s):               (1 or 2)
: 1. A water level drop in the refueling canal or spent fuel pool that will result in irradiated fuel becoming uncovered.
OR to 0CAN121102 Page 15 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: AA2 (Contd)
: 2. VALID alarm on any of the following radiation monitors due to damage to irradiated fuel or loss of water level:
Unit 1 RX-9820        Containment Purge (Channel 7 or 9)
RX-9825        Radwaste Area (Channel 7 or 9)
RX-9830        Fuel Handling Area (Channel 7 or 9)
RE-8060        Containment High Range Radiation Monitors RE-8061        Containment High Range Radiation Monitors RE-8009        Spent Fuel Area RE-8017        Fuel Handling Unit 2 2RX-9820        Containment Purge (Channel 7 or 9) 2RX-9825        Radwaste Area (Channel 7 or 9) 2RX-9830        Fuel Handling Area (Channel 7 or 9) 2RE-8905        Containment Equipment Hatch Area 2RE-8909        Containment Personnel Hatch Area 2RE-8925-1       Containment High Range Radiation Monitors 2RE-8925-2       Containment High Range Radiation Monitors 2RE-8914        Spent Fuel Area 2RE-8915        Spent Fuel Area 2RE-8916        Spent Fuel Area 2RE-8912        Containment Incore Inst.
Deviations:
None.
Differences:
Site-specific elevated readings for EAL #2 are not provided for ANO but instead multiple radiation monitors for each unit on which an alarm could be received are provided.
to 0CAN121102 Page 16 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: AA3 Rise in radiation levels within the facility that impedes operation of systems required to maintain plant safety functions Operating Mode Applicability:                  All Example Emergency Action Levels:
: 1. Dose rate greater than 15 mR/hr in ANY of the following areas requiring continuous occupancy to maintain plant safety functions:
(site-specific area list)
ANO: AA3 Rise in radiation levels within the facility that impedes operation of systems required to maintain plant safety functions Operating Mode Applicability:          All Emergency Action Level(s):
: 1. Dose rate > 15 mR/hr in any of the following areas requiring continuous occupancy to maintain plant safety functions:
Unit 1 Control Room Unit 2 Control Room Central Alarm Station Deviations:
None.
Differences:
None.
to 0CAN121102 Page 17 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: AS1 Off-site dose resulting from an actual or IMMINENT release of gaseous radioactivity greater than 100 mrem Total Effective Dose Equivalent (TEDE) or 500 mrem Thyroid Committed Dose Equivalent (CDE) for the actual or projected duration of the release Operating Mode Applicability:                All Example Emergency Action Levels:             (1 or 2 or 3 or 4)
Note:     The Emergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time. If dose assessment results are available, declaration should be based on dose assessment instead of radiation monitor values. Do not delay declaration awaiting dose assessment results.
: 1. VALID reading on ANY of the following radiation monitors greater than the reading shown for 15 minutes or longer:
(site-specific monitor list and threshold values)
: 2. Dose assessment using actual meteorology indicates doses greater than 100 mrem TEDE or 500 mrem thyroid CDE at or beyond the site boundary.
: 3. VALID perimeter radiation monitoring system reading greater than 100 mR/hr for 15 minutes or longer. [for sites having telemetered perimeter monitors]
: 4. Field survey results indicate closed window dose rates greater than 100 mR/hr expected to continue for 60 minutes or longer; or analyses of field survey samples indicate thyroid CDE greater than 500 mrem for one hour of inhalation, at or beyond the site boundary.
to 0CAN121102 Page 18 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: AS1 Offsite dose resulting from an actual or imminent release of gaseous radioactivity > 100 mR TEDE or 500 mR child thyroid CDE for the actual or projected duration of the release Operating Mode Applicability:         All Emergency Action Level(s):            (1 or 2 or 3)
Note:     The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time. If dose assessment results are available, the classification should be based on EAL #2 instead of EAL #1. Do not delay declaration awaiting dose assessment results.
: 1. VALID reading on Channel 9 on any of the following radiation monitors > the reading shown for  15 minutes:
MONITORS - UNIT 1                         LIMIT RX-9820        Containment Purge                               5.90E+1 &#xb5;Ci/cc RX-9825        Radwaste Area                                   5.36E+1 &#xb5;Ci/cc RX-9830        Fuel Handling Area                              4.54E+1 &#xb5;Ci/cc RX-9835        Emergency Penetration Room                      9.56E+2 &#xb5;Ci/cc MONITORS - UNIT 2                         LIMIT 2RX-9820        Containment Purge                               4.46E+1 &#xb5;Ci/cc 2RX-9825        Radwaste Area                                   3.32E+1 &#xb5;Ci/cc 2RX-9830        Fuel Handling Area                              4.46E+1 &#xb5;Ci/cc 2RX-9835        Emergency Penetration Room                      8.84E+2 &#xb5;Ci/cc 2RX-9840        Post Accident Sampling Building                 4.42E+2 &#xb5;Ci/cc 2RX-9845        Aux. Building Extension                         1.26E+2 &#xb5;Ci/cc 2RX-9850        Low-Level Radwaste Storage Building             1.77E+2 &#xb5;Ci/cc OR
: 2. Dose assessment using actual meteorology indicates doses > 100 mR TEDE or 500 mR child thyroid CDE at or beyond the site boundary.
OR to 0CAN121102 Page 19 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: AS1 (Contd)
: 3. Field survey results indicate closed window dose rates >100 mR/hr expected to continue for  60 minutes; or analyses of field survey samples indicate child thyroid CDE > 500 mR for one hour of inhalation, at or beyond the site boundary.
Deviations:
None.
Differences:
Child thyroid CDE is used in place of adult thyroid CDE in the IC and EALs #2 and #3 because the State of Arkansas uses the child thyroid in the dose assessment methods. This difference provides consistency with dose assessment methods used by the State of Arkansas.
The references to dose assessment and plant monitoring data are replaced in the EAL section note with the corresponding specific EAL numbers. This change is provided for ease of use only and does not change the intent of the note.
The radiation monitor channel is identified in EAL #1 in order to provide site-specific detail.
ANO has installed telemetered perimeter monitoring devices. These devices, however, are neither qualified nor intended to provide an accurate indication of the dose rate at the perimeter of the site. They are only intended to provide early indication of a potential unmonitored offsite release. Therefore, ANO has not included an EAL comparable to NEI 99-01 Revision 5 AS1 EAL #3.
Additional information is provided in the bases for field monitoring team surveys (ANO EAL #3).
to 0CAN121102 Page 20 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: AG1 Off-site dose resulting from an actual or IMMINENT release of gaseous radioactivity greater than 1000 mrem TEDE or 5000 mrem Thyroid CDE for the actual or projected duration of the release using actual meteorology Operating Mode Applicability:                All Example Emergency Action Levels:             (1 or 2 or 3 or 4)
Note:     The Emergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time. If dose assessment results are available, declaration should be based on dose assessment instead of radiation monitor values. Do not delay declaration awaiting dose assessment results.
: 1. VALID reading on ANY of the following radiation monitors greater than the reading shown for 15 minutes or longer:
(site-specific monitor list and threshold values)
: 2. Dose assessment using actual meteorology indicates doses greater than 1000 mrem TEDE or 5000 mrem thyroid CDE at or beyond the site boundary.
: 3. VALID perimeter radiation monitoring system reading greater than 1000 mR/hr for 15 minutes or longer. [for sites having telemetered perimeter monitors]
: 4. Field survey results indicate closed window dose rates greater than 1000 mR/hr expected to continue for 60 minutes or longer; or analyses of field survey samples indicate thyroid CDE greater than 5000 mrem for one hour of inhalation, at or beyond site boundary.
to 0CAN121102 Page 21 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: AG1 Offsite dose resulting from an actual or imminent release of gaseous radioactivity > 1000 mR TEDE or 5000 mR child thyroid CDE for the actual or projected duration of the release using actual meteorology Operating Mode Applicability:          All Emergency Action Level(s):             (1 or 2 or 3)
Note:     The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time. If dose assessment results are available, the classification should be based on EAL #2 instead of EAL #1. Do not delay declaration awaiting dose assessment results.
: 1. VALID reading on Channel 9 on any of the following radiation monitors > the reading shown for  15 minutes:
MONITORS - UNIT 1                         LIMIT RX-9820       Containment Purge                             5.90E+2 (Ci/cc)
RX-9825       Radwaste Area                                 5.36E+2 (Ci/cc)
RX-9830       Fuel Handling Area                            4.54E+2 (Ci/cc)
RX-9835       Emergency Penetration Room                    9.56E+3 (Ci/cc)
MONITORS - UNIT 2                         LIMIT 2RX-9820       Containment Purge                             4.46E+2 (Ci/cc) 2RX-9825       Radwaste Area                                 3.32E+2 (Ci/cc) 2RX-9830       Fuel Handling Area                            4.46E+2 (Ci/cc) 2RX-9835       Emergency Penetration Room                    8.84E+3 (Ci/cc) 2RX-9840       Post Accident Sampling Building               4.42E+3 (Ci/cc) 2RX-9845       Aux. Building Extension                       1.26E+3 (Ci/cc) 2RX-9850       Low-Level Radwaste Storage Building           1.77E+3 (Ci/cc)
OR
: 2. Dose assessment using actual meteorology indicates doses > 1000 mR TEDE or 5000 mR child thyroid CDE at or beyond the site boundary.
OR
: 3. Field survey results indicate closed window dose rates >1000 mR/hr expected to continue for  60 minutes; or analyses of field survey samples indicate child thyroid CDE > 5000 mR for one hour of inhalation, at or beyond the site boundary.
to 0CAN121102 Page 22 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: AG1 (Contd)
Deviations:
None.
Differences:
Child thyroid CDE is used in place of adult thyroid CDE in the IC and EALs #2 and #3 because the State of Arkansas uses the child thyroid in their dose assessment methods. This difference provides consistency with dose assessment methods used by the State of Arkansas.
The references to dose assessment and plant monitoring data are replaced with the corresponding specific EAL numbers in the EAL section note. This change is provided for ease of use only and does not change the intent of the note.
The radiation monitor channel is identified in EAL #1 in order to provide site-specific detail.
ANO has installed telemetered perimeter monitoring devices. These devices, however, are neither qualified nor intended to provide an accurate indication of the dose rate at the perimeter of the site. They are only intended to provide early indication of a potential unmonitored offsite release. Therefore, ANO has not included an EAL comparable to NEI 99-01, Revision 5, AG1 EAL #3.
Additional information is provided in the bases for field monitoring team surveys (ANO EAL #3).
to 0CAN121102 Page 23 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: CU1 RCS leakage Operating Mode Applicability:               Cold Shutdown Example Emergency Action Levels:
Note:     The Emergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. RCS leakage results in the inability to maintain or restore RPV level greater than (site-specific low-level RPS actuation setpoint) for 15 minutes or longer. [BWR]
: 1. RCS leakage results in the inability to maintain or restore level within (site-specific pressurizer or RCS/RPV level target band) for 15 minutes or longer. [PWR]
ANO: CU1 RCS leakage Operating Mode Applicability:         Cold Shutdown (Mode 5)
Emergency Action Level(s):
Note:     The SM should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. RCS leakage results in the inability to maintain or restore level within Pressurizer or RCS level target band for  15 minutes.
Deviations:
None.
Differences:
None.
to 0CAN121102 Page 24 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: CU2 UNPLANNED loss of RCS/RPV inventory Operating Mode Applicability:                Refueling Example Emergency Action Levels:             (1 or 2)
Note:    The Emergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. UNPLANNED RCS/RPV level drop as indicated by either of the following:
RCS/RPV water level drop below the RPV flange for 15 minutes or longer when the RCS/RPV level band is established above the RPV flange.
RCS/RPV water level drop below the RCS level band for 15 minutes or longer when the RCS/RPV level band is established below the RPV flange.
: 2. RCS/RPV level cannot be monitored with a loss of RCS/RPV inventory as indicated by an unexplained level rise in (site-specific sump or tank).
ANO: CU2 UNPLANNED loss of RCS / reactor vessel inventory Operating Mode Applicability:         Refueling (Mode 6)
Emergency Action Level(s):            (1 or 2)
Note:    The SM should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. UNPLANNED RCS / reactor vessel level drop as indicated by either of the following:
: a. RCS / reactor vessel water level drop below the reactor vessel flange for  15 minutes when the RCS / reactor vessel level band is established above the reactor vessel flange.
OR
: b. RCS / reactor vessel water level drop below the RCS / reactor vessel level band for 15 minutes when the RCS / reactor vessel level band is established below the reactor vessel flange.
OR to 0CAN121102 Page 25 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: CU2 (Contd)
: 2. RCS / reactor vessel level cannot be monitored with a loss of RCS / reactor vessel inventory as indicated by an unexplained level rise in the Reactor Building Sump, Reactor Drain Tank, Aux. Building Equipment Drain Tank, Aux. Building Sump, or Quench Tank.
Deviations:
None.
Differences:
None.
to 0CAN121102 Page 26 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: CU4 UNPLANNED loss of decay heat removal capability with irradiated fuel in the RPV Operating Mode Applicability:               Cold Shutdown Refueling Example Emergency Action Levels:            (1 or 2)
Note:     The Emergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. UNPLANNED event results in RCS temperature exceeding the Technical Specification cold shutdown temperature limit.
: 2. Loss of all RCS temperature and RCS/RPV level indication for 15 minutes or longer.
ANO: CU3 UNPLANNED loss of decay heat removal capability with irradiated fuel in the reactor vessel Operating Mode Applicability:         Cold Shutdown (Mode 5)
Refueling (Mode 6)
Emergency Action Level(s):            (1 or 2)
Note:     The SM should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. UNPLANNED event results in RCS temperature exceeding 200 &deg;F.
OR
: 2. Loss of all RCS temperature and RCS/reactor vessel level indication for  15 minutes.
Deviations:
None.
Differences:
NEI 99-01 CU4 is renumbered to ANO CU3 for formatting purposes based on site preference for order of ICs alone.
to 0CAN121102 Page 27 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: CU3 AC power capability to emergency busses reduced to a single power source for 15 minutes or longer such that any additional single failure would result in station blackout Operating Mode Applicability:               Cold Shutdown Refueling Example Emergency Action Level:
Note:     The Emergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. a. AC power capability to (site-specific emergency busses) reduced to a single power source for 15 minutes or longer.
AND
: b. Any additional single power source failure will result in station blackout.
ANO: CU5 AC power capability to Vital 4.16 KV busses reduced to a single power source  15 minutes such that any additional single failure would result in station blackout Operating Mode Applicability:         Cold Shutdown (Mode 5 Refueling (Mode 6)
Emergency Action Level(s):
Note:     The SM should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. a. AC power capability to Vital 4.16 KV busses reduced to a single power source 15 minutes.
AND
: b. Any additional single power source failure will result in station blackout.
Deviations:
None.
Differences:
NEI 99-01 CU3 is renumbered to ANO CU5 for formatting purposes based on site preference for order of ICs alone.
The site-specific term Vital 4.16 KV is used in the IC and EAL to define emergency busses.
to 0CAN121102 Page 28 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: CU7 Loss of required DC power for 15 minutes or longer Operating Mode Applicability:               Cold Shutdown Refueling Example Emergency Action Level:
Note:     The Emergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. Less than (site-specific bus voltage indication) on required (site-specific Vital DC busses) for 15 minutes or longer.
ANO: CU6 Loss of required DC power  15 minutes Operating Mode Applicability:         Cold Shutdown (Mode 5)
Refueling (Mode 6)
Emergency Action Level(s):
Note:     The SM should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1.   < 105 volts on required Vital DC bus  15 minutes.
Deviations:
None.
Differences:
NEI 99-01 CU7 is renumbered to ANO CU6 for formatting purposes based on site preference for order of ICs alone.
to 0CAN121102 Page 29 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: CU8 Inadvertent criticality Operating Mode Applicability:           Cold Shutdown Refueling Example Emergency Action Levels:
: 1. UNPLANNED sustained positive period observed on nuclear instrumentation. (BWR)
: 1. UNPLANNED sustained positive startup rate observed on nuclear instrumentation. (PWR)
ANO: CU7 Inadvertent criticality Operating Mode Applicability:      Cold Shutdown (Mode 5)
Refueling (Mode 6)
Emergency Action Level(s):
: 1. UNPLANNED sustained positive startup rate observed on nuclear instrumentation.
Deviations:
None.
Differences:
NEI 99-01 CU8 is renumbered to ANO CU7 for formatting purposes based on site preference for order of ICs alone.
to 0CAN121102 Page 30 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: CU6 Loss of all On-site or Off-site communications capabilities Operating Mode Applicability:                 Cold Shutdown Refueling Defueled Example Emergency Action Levels:              (1 or 2)
: 1. Loss of all of the following on-site communication methods affecting the ability to perform routine operations:
(site-specific list of communications methods)
: 2. Loss of all of the following off-site communication methods affecting the ability to perform offsite notifications:
(site-specific list of communications methods)
ANO: CU8 Loss of all onsite or offsite communications capabilities Operating Mode Applicability:           Cold Shutdown (Mode 5)
Refueling (Mode 6)
Defueled Emergency Action Level(s):              (1 or 2)
: 1. Loss of all Table C2 onsite communication methods affecting the ability to perform routine operations.
OR
: 2. Loss of all Table C3 offsite communication methods affecting the ability to perform offsite notifications.
Table C2                                           Table C3 Onsite Communications Methods                         Offsite Communications Methods Station radio system                  All telephone lines (commercial and microwave)
Plant paging system                        Emergency Notification System (ENS)
In-plant telephones Gaitronics to 0CAN121102 Page 31 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: CU8 (Contd)
Deviations:
None.
Differences:
NEI 99-01 CU6 is renumbered to ANO CU8 for formatting purposes based on site preference for order of ICs alone.
Onsite and offsite communications methods in tables are presented and the tables are referenced causing a minor difference in EAL language from that in NEI 99-01.
to 0CAN121102 Page 32 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: CA1 Loss of RCS/RPV inventory Operating Mode Applicability:              Cold Shutdown Refueling Example Emergency Action Levels:           (1 or 2)
Note:     The Emergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. Loss of RCS/RPV inventory as indicated by level less than (site-specific level).
[Low-Low ECCS actuation setpoint / Level 2 (BWR)]
[Bottom ID of the RCS loop (PWR)]
: 2. RCS/RPV level cannot be monitored for 15 minutes or longer with a loss of RCS/RPV inventory as indicated by an unexplained level rise in (site-specific sump or tank).
ANO: CA1 Loss of RCS / reactor vessel inventory Operating Mode Applicability:        Cold Shutdown (Mode 5)
Refueling (Mode 6)
Emergency Action Level(s):           (1 or 2)
Note:     The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. Loss of RCS / reactor vessel inventory as indicated by:
Unit 1: RVLMS Levels 1 through 8 indicate DRY Unit 2: RVLMS Levels 1 through 5 indicate DRY OR Unit 1: Reactor vessel level < 368 ft., 0 in. (bottom of the hot leg)
Unit 2: Reactor vessel level < 369 ft., 1.5 in. (bottom of the hot leg)
OR to 0CAN121102 Page 33 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: CA1 (Contd)
: 2. RCS / reactor vessel level cannot be monitored for  15 minutes with a loss of RCS /
reactor vessel inventory as indicated by an unexplained level rise in the Reactor Building Sump, Reactor Drain Tank, Auxiliary Building Equipment Drain Tank, Auxiliary Building Sump, or Quench Tank.
Deviations:
None.
Differences:
Site-specific bases information is provided for reactor vessel level monitoring in Mode 6.
to 0CAN121102 Page 34 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: CA4 Inability to maintain plant in cold shutdown Operating Mode Applicability:              Cold Shutdown Refueling Example Emergency Action Levels:           (1 or 2)
: 1. An UNPLANNED event results in RCS temperature greater than (site-specific Technical Specification cold shutdown temperature limit) for greater than the specified duration on table.
Table: RCS Reheat Duration Thresholds RCS                        Containment Closure         Duration Intact (but not RCS Reduced Inventory [PWR])                  N/A             60 minutes*
Not intact or RCS Reduced Inventory (PWR)                Established          20 minutes*
Not Established         0 minutes
* If an RCS heat removal system is in operation within this time frame and RCS temperature is being reduced, the EAL is not applicable.
: 2. An UNPLANNED event results in RCS pressure increase greater than 10 psi due to a loss of RCS cooling. (PWR - This EAL does not apply in Solid Plant conditions) to 0CAN121102 Page 35 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: CA3 Inability to maintain plant in cold shutdown Operating Mode Applicability:          Cold Shutdown (Mode 5)
Refueling (Mode 6)
Emergency Action Level(s):             (1 or 2)
: 1. An UNPLANNED event results in RCS temperature > 200 &deg;F > the specified duration in Table C1.
Table C1 RCS Reheat Duration Thresholds RCS                        Containment Closure           Duration Intact (but not RCS Lowered Inventory)                 N/A                 60 minutes*
Established             20 minutes*
Not intact or RCS Lowered Inventory Not Established            0 minutes
* If an RCS heat removal system is in operation within this time frame and RCS temperature is being reduced, the EAL is not applicable.
OR Note:      EAL #2 does not apply in solid plant conditions.
: 2. An UNPLANNED event results in RCS pressure rise > 10 psi due to a loss of RCS cooling.
Deviations:
None.
Differences:
NEI 99-01 CA4 is renumbered to ANO CA3 for formatting purposes based on site preference for order of ICs alone.
to 0CAN121102 Page 36 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: CA3 Loss of all Off-site and all On-Site AC power to emergency busses for 15 minutes or longer Operating Mode Applicability:                Cold Shutdown Refueling Defueled Example Emergency Action Level:
Note:     The Emergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. Loss of all Off-Site and all On-Site AC Power to (site-specific emergency busses) for 15 minutes or longer.
ANO: CA5 Loss of all offsite and all onsite AC power to Vital 4.16KV busses  15 minutes Operating Mode Applicability:           Cold Shutdown (Mode 5)
Refueling (Mode 6)
Defueled Emergency Action Level(s):
Note:     The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. Loss of all offsite and all onsite AC power to Vital 4.16KV busses  15 minutes.
Deviations:
None.
Differences:
NEI 99-01 CA3 is renumbered to ANO CA5 for formatting purposes based on site preference for order of ICs alone.
The site-specific term Vital 4.16KV is used in the IC and EAL to define emergency busses.
to 0CAN121102 Page 37 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: CS1 Loss of RCS/RPV inventory affecting core decay heat removal capability Operating Mode Applicability:              Cold Shutdown Refueling Example Emergency Action Levels:           (1 or 2 or 3)
Note:      The Emergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. With CONTAINMENT CLOSURE not established, RCS/RPV level less than (site-specific level).
[6" below the bottom ID of the RCS loop (PWR)]
[6" below the low-low Emergency Core Cooling System (ECCS) actuation setpoint (BWR)]
OR
: 2. With CONTAINMENT CLOSURE established, RCS/RPV level less than (site-specific level for the top of active fuel (TOAF)).
OR
: 3. RCS/RPV level cannot be monitored for 30 minutes or longer with a loss of RCS/RPV inventory as indicated by ANY of the following:
(Site-specific radiation monitor) reading greater than (site-specific value).
Erratic Source Range Monitor Indication.
Unexplained level rise in (site-specific sump or tank).
to 0CAN121102 Page 38 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: CS1 Loss of RCS / reactor vessel inventory affecting core decay heat removal capability Operating Mode Applicability:        Cold Shutdown (Mode 5)
Refueling (Mode 6)
Emergency Action Level(s):           (1 or 2 or 3)
Note:    The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. With CONTAINMENT CLOSURE not established:
Unit 1: Reactor Vessel Level Monitor System (RVLMS) Levels 1 through 9 indicate DRY Unit 2: RVLMS Levels 1 through 6 indicate DRY OR
: 2. With CONTAINMENT CLOSURE established, core exit thermocouples (CETs) indicate superheat.
OR
: 3. RCS / reactor vessel level cannot be monitored for  30 minutes with a loss of RCS /
reactor vessel inventory as indicated by any of the following:
Containment High Range Radiation Monitor reading >10 R/hr Erratic source range monitor indication Unexplained level rise in Reactor Building Sump, Reactor Drain Tank, Quench Tank, Aux. Building Equipment Drain Tank, or Aux. Building Sump.
Deviations:
None.
to 0CAN121102 Page 39 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: CS1 (Contd)
Differences:
The ANO units do not have the capability to monitor reactor vessel level at or below the top of active fuel and, therefore, superheat indication on core exit thermocouples (CETs) is used for EAL #2. CET superheat is used to indicate the level below the top of active fuel and core uncovery. As level falls below the top of active fuel, CETs will begin to indicate superheat conditions. This difference of using CET superheat rather than an actual level indication corresponding to the NEI EAL is due to plant design. The treatment of this EAL provides a logic path consistent with a Site Area Emergency in that the RCS level drop indicates a loss of the RCS barrier and the superheat condition indicates a potential loss (or loss) of the fuel clad barrier. Escalation to a General Emergency occurs if containment closure is not established or other indications of containment barrier loss or potential loss exist. The plants cold shutdown RCS level monitoring capability represents the same technical capability as that for the NEI 99-01, Revision 4, based ANO EAL scheme that was previously approved by NRC in a letter dated October 6, 2005 (ADAMS Accession No. ML052720568). The current proposed use of the CET superheat indication in CS1 is consistent with the use of this indication in CG1 in the approved EAL scheme.
to 0CAN121102 Page 40 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: CG1 Loss of RCS/RPV inventory affecting fuel clad integrity with containment challenged Operating Mode Applicability:                Cold Shutdown Refueling Example Emergency Action Level:              (1 or 2)
Note:    The Emergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. a. RCS/RPV level less than (site-specific level for TOAF) for 30 minutes or longer.
AND
: b. ANY containment challenge indication (see Table):
: 2. a. RCS/RPV level cannot be monitored with core uncovery indicated by ANY of the following for 30 minutes or longer.
(Site-specific radiation monitor) reading greater than (site-specific setpoint)
Erratic source range monitor indication UNPLANNED level rise in (site-specific sump or tank)
[Other site-specific indications]
AND
: b. ANY containment challenge indication (see Table):
Table: Containment Challenge Indications CONTAINMENT CLOSURE not established.
(Site-specific explosive mixture) inside containment.
UNPLANNED rise in containment pressure.
Secondary containment radiation monitor reading above (site-specific value). [BWR only]
to 0CAN121102 Page 41 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: CG1 Loss of RCS / reactor vessel inventory affecting fuel clad integrity with containment challenged Operating Mode Applicability:         Cold Shutdown (Mode 5)
Refueling (Mode 6)
Emergency Action Level(s):            (1 or 2)
Note:    The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. a. Core Exit Thermocouples indicate superheat for  30 minutes.
AND
: b. Any of the following containment challenge indications:
CONTAINMENT CLOSURE not established Explosive mixture inside containment UNPLANNED rise in containment pressure OR
: 2. a. RCS / reactor vessel level cannot be monitored with core uncovery indicated by any of the following for  30 minutes:
Containment High Range Radiation Monitor reading > 10R/hr Erratic source range monitor indication Unexplained level rise in Reactor Building Sump, Reactor Drain Tank, Quench Tank, Auxiliary Building Equipment Drain Tank, or Auxiliary Building Sump AND
: b. Any of the following containment challenge indications:
CONTAINMENT CLOSURE not established Explosive mixture inside containment UNPLANNED rise in containment pressure Deviations:
None.
to 0CAN121102 Page 42 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: CG1 (Contd)
Differences:
The ANO units do not have the capability to monitor reactor vessel level at or below the top of active fuel and therefore uses superheat indication on CETs for EAL #1. CET superheat is used to indicate level below the top of active fuel and core uncovery. As level falls below the top of active fuel, CETs will begin to indicate superheat conditions. This difference of using CET superheat rather than an actual level indication corresponding to the NEI EAL is because of plant design. The plants cold shutdown RCS level monitoring capability represents the same technical capability as that for the NEI 99-01, Revision 4, based ANO EAL scheme that was previously approved by NRC in a letter dated October 6, 2005 (ADAMS Accession No. ML052720568). The current proposed use of the CET superheat indication, though formatted differently, is consistent with its use in the previously approved EAL scheme.
The term unexplained is used instead of UNPLANNED for the level rise indication in the third bullet of EAL 2.a. This is the same term used by NEI 99-01 for the Site Area Emergency (SAE) condition. If level rise cannot be explained, then it encompasses the term UNPLANNED and therefore meets the NEI intent.
A table is not used to present the containment challenge indications for EALs 1 and 2.b. The NEI indications are presented in bullet format with all NEI content retained in the ANO EAL.
to 0CAN121102 Page 43 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: E-HU1 Damage to a loaded cask CONFINEMENT BOUNDARY Operating Mode Applicability:               Not applicable Example Emergency Action Level:
: 1. Damage to a loaded cask CONFINEMENT BOUNDARY.
ANO: E-HU1 Damage to a loaded cask CONFINEMENT BOUNDARY Operating Mode Applicability:          All Emergency Action Level(s):
: 1. Damage to a loaded cask CONFINEMENT BOUNDARY.
Deviations:
None.
Differences:
An operating mode applicability of all is used vice the NEI designation of N/A. The net effect is that this event is applicable regardless of operating mode and therefore, the same as the NEI intent.
to 0CAN121102 Page 44 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: FU1 ANY Loss or ANY Potential Loss of Containment Operating Mode Applicability:             Power Operations Startup Hot Standby Hot Shutdown ANO: FU1 ANY loss or ANY potential loss of containment Operating Mode Applicability:       Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Deviations:
None.
Differences:
None.
to 0CAN121102 Page 45 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: FA1 ANY Loss or ANY Potential Loss of EITHER Fuel Clad OR RCS Operating Mode Applicability:             Power Operations Startup Hot Standby Hot Shutdown ANO: FA1 ANY loss or ANY potential loss of EITHER fuel clad or RCS Operating Mode Applicability:       Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Deviations:
None.
Differences:
None.
to 0CAN121102 Page 46 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: FS1 Loss or Potential Loss of ANY Two Barriers Operating Mode Applicability:              Power Operations Startup Hot Standby Hot Shutdown ANO: FS1 Loss or potential loss of ANY two barriers Operating Mode Applicability:       Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Deviations:
None.
Differences:
None.
to 0CAN121102 Page 47 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: FG1 Loss of ANY Two Barriers AND Loss or Potential Loss of the third barrier Operating Mode Applicability:           Power Operations Startup Hot Standby Hot Shutdown ANO: FG1 Loss of ANY two barriers AND loss or potential Loss of the third barrier Operating Mode Applicability:     Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Deviations:
None.
Differences:
None.
to 0CAN121102 Page 48 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: FUEL CLAD BARRIER Fuel Clad Barrier Thresholds LOSS                                            POTENTIAL LOSS
: 1. Critical Safety Function Status A. Core Cooling - Red Entry Conditions Met        A. Core Cooling - Orange Entry Conditions Met OR B. Heat Sink - Red Entry Conditions Met OR
: 2. Primary Coolant Activity Level A. Coolant activity greater than                  Not Applicable (site-specific) value OR
: 3. Core Exit Thermocouple Readings A. Core exit thermocouples reading greater        A. Core exit thermocouples reading greater than than (site-specific &deg;F)                           (site-specific &deg;F)
OR
: 4. Reactor Vessel Water Level Not Applicable                                    A. RCS/RPV level less than (site-specific level for TOAF)
OR
: 5. Not Applicable Not Applicable                                    Not Applicable OR
: 6. Containment Radiation Monitoring A. Containment radiation monitor reading          Not Applicable greater than (site-specific value)
OR
: 7. Other Site-Specific Indications A. (site-specific) as applicable                  A. (site-specific) as applicable OR
: 8. Emergency Director Judgment A. Any condition in the opinion of the            A. Any condition in the opinion of the Emergency Emergency Director that indicates Loss of         Director that indicates Potential Loss of the Fuel the Fuel Clad Barrier                             Clad Barrier to 0CAN121102 Page 49 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: FUEL CLAD BARRIER Fuel Clad Barrier EALs LOSS                                           POTENTIAL LOSS
: 1. Safety Function Status (FCB1)
Not Applicable                               Not Applicable
: 1. Primary Activity Level (FCB1)
: 1. Coolant activity > 300 &#xb5;Ci/gm dose      None equivalent I-131 activity by Chemistry sample OR
: 2. Radiation levels > 1000 MR/hr Unit 1:      at SA-229 Unit 2:      at 2TCD-19
: 2. Core Exit Thermocouple Readings (FCB2)
> 1200 &deg;F CET temperature                    Unit 1:    Inadequate Core Cooling (ICC) exists as evidenced by CETs indicating superheated conditions Unit 2:    Average CETs indicate superheat for current RCS pressure
: 3. Reactor Vessel Water Level (FCB3)
None                                         Unit 1:    RVLMS Levels 1 through 9 indicate DRY Unit 2:    RVLMS Levels 1 through 7 indicate DRY
: 4. Containment Radiation Monitoring (FCB4)
Containment high range radiation monitor     None reading > 1000 R/hr
: 5. Core Damage Assessment (FCB5)
At least 5% fuel clad damage as              None determined from core damage assessment
: 6. Emergency Director Judgment (FCB6)
Any condition in the opinion of the SM / TSC Director / EOF Director that indicates Loss or Potential Loss of the Fuel Clad Barrier to 0CAN121102 Page 50 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: FUEL CLAD BARRIER (Contd)
Deviations:
None.
Differences:
EALs for Unit 1 and Unit 2 that correspond to the Critical Safety Function Status Trees (CSFSTs) included in the NEI 99-01, Revision 5, EALs are not provided. Unit 1 (a B&W plant) does not have a Safety Function process similar to that of Westinghouse units (which are included in the NEI 99-01, Revision 5, example EALs).
Unit 2 (a CE plant) does have methodologies similar to CSFSTs with some differences. Unit 2 performs Standard Post Trip Actions (SPTA) and verifies the status of its Safety Functions (Reactivity, Vital Auxiliaries, RCS Inventory, RCS Pressure, Core Heat Removal, RCS Heat Removal, & Containment) upon any reactor trip. An evaluation is made of each of the seven Safety Functions comparing plant response and critical parameters to standard, expected values. Each Safety Function is then marked on a tracking sheet as SATISIFIED or NOT SATISIFIED. If any Safety Function is not satisfied, the condition is announced to the Control Room staff and a diagnostic flow chart is referenced to determine the proper Optimal Recovery Procedure (ORP) to enter. The diagnostic flowchart may direct the Operator to an ORP or to the Functional Recovery Procedure (FRP). The intent of this diagnostic action is to direct the Operator to the ORPs for a single event, and to the FRP for multiple events. Each ORP contains Safety Function Status Checks (SFSC) which are performed every 15 minutes. These checks ensure the Operators utilization of the ORP is properly addressing plant critical parameters. If the SFSC is not met then the FRP is entered. Criteria for FRP entry is:
: 1. ANY event in progress which can NOT be diagnosed as a single event.
: 2. Actions taken have NOT satisfied SFSC acceptance criteria.
: 3. Entry is directed by Diagnostic Actions.
While all ORPs have SFSC criteria for all Safety Functions, all ORP acceptance criteria are not the same. For example; the SFSC criteria required to SATISIFY the requirements for RCS Heat Removal (a Safety Function) is different in the SPTAs than in Loss of Coolant Accident (LOCA)
ORP, which is different than those contained in the Steam Generator Tube Rupture (SGTR)
ORP, which is different than those in the Loss of Feedwater (LOF) ORP, and so on.
To compare NEI 99-01 Safety Function intent with that of Unit 2 above, a Loss of Offsite Power (LOOP) event is correctly classified per NEI 99-01 as System Malfunction - Loss of AC Power (SU1), Loss of all offsite AC power to Vital 4.16 KV busses  15 minutes. This event is correctly classified as a NUE. However, a LOOP results in the loss of the operating Reactor Coolant Pumps due to loss of non-vital power sources. During performance of the SPTAs, the Core Heat Removal Safety Function will be assessed as NOT SATISIFIED. If NEI 99-01, Fission Product Barrier Malfunction - Barriers, is referenced, FCB1 would be applicable and the event would require declaration of an ALERT.
to 0CAN121102 Page 51 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: FUEL CLAD BARRIER (Contd)
Differences (Contd):
Entergy believes erroneous classification of a standard NUE condition as a ALERT is inappropriate. Natural circulation of the reactor coolant provides adequate core cooling and no significant challenge to the core heat removal functions are expected to occur. Other EALs are referenced when plant conditions change or degrade. The remaining EALs used in the Fuel Clad Barrier (FCB) section provide the Operators with the necessary information to classify events appropriately based on the actual coolant temperatures, pressures, vessel level, margin-to-sat values, etc., without the need for a reference to Safety Functions.
In summary, the ORP SFSC criteria were not established to meet EAL classification requirements. The SFCSs ensure Safety Function status is verified and updated at regular intervals so that changes in plant conditions may be recognized promptly and to enable trending of plant parameters important to safety. Based on the above, Entergy proposes to not adopt the use of Safety Functions in the Fuel Clad Barrier EAL. Subsequently, the NEI 99-01 FCBs are renumbered in the ANO EALs for formatting purposes based on the non-use of the Safety Function Status FCB criteria.
NEI provides a developers note indicating that radiation levels observed on a sample may also be used for the primary coolant activity level EAL. Radiation levels are provided at one foot from the sample lines for this value. This is an equivalent use of the developers note on sample radiation levels.
Additional bases information for CET temperature readings are provided to assist the decision maker in relating the associated potential losses and losses for all three fission product barriers.
ANO differs from NEI 99-01 guidance in that the potential loss reactor vessel level EAL does not represent the top of active fuel (TOAF) level, but a level above it. The RVLMS at ANO does not provide positive indication of core uncovery. The above core level indication provided is used to monitor the approach to and recovery from Inadequate Core Cooling conditions, but the CETs are used to identify core uncovery and are the only positive indication of core uncovery. The ANO EAL represents the lowest point that can be monitored that is above the top of active fuel.
This difference represents an appropriately conservative value that continues to indicate a significant challenge in the ability to adequately cool the fuel cladding, is readily observable to the operators, and represents the lowest level that can be measured using installed instrumentation in the reactor vessel. Therefore, this difference is in accordance with plant design.
Site-specific detail is provided in the bases for RVLMS.
An additional EAL labeled core damage assessment (ANO FCB5) is provided where NEI provides for other indications.
The Fuel Clad Barrier EALs are not provided in a table in the Basis Document. The EALs are presented as text. A table is used in the EAL Matrix document.
to 0CAN121102 Page 52 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: RCS BARRIER RCS Barrier Example Thresholds LOSS                                           POTENTIAL LOSS
: 1. Critical Safety Function Status Not Applicable                                  A. RCS Integrity - Red Entry Conditions Met OR B. Heat Sink - Red Entry Conditions Met OR
: 2. RCS Leak Rate A. RCS leak rate greater than available         B. RCS leak rate indicated greater than (site-specific makeup capacity as indicated by a loss of       capacity of once charging pump in the normal RCS subcooling                                  charging mode) with Letdown isolated OR
: 3. Not Applicable Not Applicable                                  Not Applicable OR
: 4. SG Tube Rupture A. RUPTURED Steam Generator (SG)                Not Applicable results in an ECCS (SI) actuation OR
: 5. Not Applicable Not Applicable                                  Not Applicable OR
: 6. Containment Radiation Monitoring A. Containment radiation monitor reading        Not Applicable greater than (site-specific value)
OR
: 7. Other Site-Specific Indications A. (site-specific) as applicable                A. (site-specific) as applicable
: 8. Emergency Director Judgment A. Any condition in the opinion of the          A. Any condition in the opinion of the Emergency Emergency Director that indicates Loss of       Director that indicates Potential Loss of the RCS the RCS Barrier                                 Barrier to 0CAN121102 Page 53 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: RCS BARRIER RCS Barrier EALs LOSS                                      POTENTIAL LOSS
: 1. Safety Function Status (RCB1)
Not Applicable                            Not applicable
: 1. RCS Leak Rate (RCB1)
RCS leak rate > available makeup          Unit 1:   UNISOLABLE RCS leak > 50 gpm with capacity as indicated by:                           Letdown isolated Unit 1:    Loss of adequate subcooling Unit 2:      UNISOLABLE RCS leak > 44 gpm with margin                                   Letdown isolated Unit 2:    RCS subcooling (margin-to-saturation or MTS) can NOT be maintained at least 30 &deg;F
: 2. SG Tube Rupture (RCB2)
Steam Generator Tube Rupture              None (SGTR) that results in an ECCS Safety Injection (SI) actuation
: 3. Containment Radiation Monitoring (RCB3)
Containment high range radiation          None monitor reading > 100 R/hr
: 4. Emergency Director Judgment (RCB4)
Any condition in the opinion of the SM / TSC Director / EOF Director that indicates Loss or Potential Loss of the RCS Barrier.
Deviations:
None.
Differences:
EALs for Unit 1 and Unit 2 that correspond to the Critical Safety Function Status Trees (CSFSTs) included in the NEI 99-01, Revision 5, EALs are not provided. Unit 1 (a B&W plant) does not have a Safety Function process similar to that of Westinghouse units (which are included in the NEI 99-01, Revision 5, example EALs).
to 0CAN121102 Page 54 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: RCS BARRIER (Contd)
Differences (contd):
Unit 2 (a CE plant) does have methodologies similar to CSFSTs with some differences. Unit 2 performs Standard Post Trip Actions (SPTA) and verifies the status of its Safety Functions (Reactivity, Vital Auxiliaries, RCS Inventory, RCS Pressure, Core Heat Removal, RCS Heat Removal, & Containment) upon any reactor trip. An evaluation is made of each of the seven Safety Functions comparing plant response and critical parameters to standard, expected values. Each Safety Function is then marked on a tracking sheet as SATISIFIED or NOT SATISIFIED. If any Safety Function is not satisfied, the condition is announced to the Control Room staff and a diagnostic flow chart is referenced to determine the proper Optimal Recovery Procedure (ORP) to enter. The diagnostic flowchart may direct the Operator to an ORP or to the Functional Recovery Procedure (FRP). The intent of this diagnostic action is to direct the Operator to the ORPs for a single event, and to the FRP for multiple events. Each ORP contains Safety Function Status Checks (SFSC) which are performed every 15 minutes. These checks ensure the Operators utilization of the ORP is properly addressing plant critical parameters. If the SFSC is not met then the FRP is entered. Criteria for FRP entry is:
: 1. ANY event in progress which can NOT be diagnosed as a single event.
: 2. Actions taken have NOT satisfied SFSC acceptance criteria.
: 3. Entry is directed by Diagnostic Actions.
While all ORPs have SFSC criteria for all Safety Functions, all ORP acceptance criteria are not the same. For example; the SFSC criteria required to SATISIFY the requirements for RCS Heat Removal (a Safety Function) is different in the SPTAs than in Loss of Coolant Accident (LOCA)
ORP, which is different than those contained in the Steam Generator Tube Rupture (SGTR)
ORP, which is different than those in the Loss of Feedwater (LOF) ORP, and so on.
To compare NEI 99-01 Safety Function intent with that of Unit 2 above, a Loss of Offsite Power (LOOP) event is correctly classified per NEI 99-01 as System Malfunction - Loss of AC Power (SU1), Loss of all offsite AC power to Vital 4.16 KV busses  15 minutes. This event is correctly classified as a NUE. However, a LOOP results in the loss of the operating Reactor Coolant Pumps due to loss of non-vital power sources. During performance of the SPTAs, the Core Heat Removal Safety Function will be assessed as NOT SATISIFIED. If NEI 99-01, Fission Product Barrier Malfunction - Barriers, is referenced, FCB1 would be applicable and the event would require declaration of an ALERT.
Entergy believes erroneous classification of a standard NUE condition as a ALERT is inappropriate. Natural circulation of the reactor coolant provides adequate core cooling and no significant challenge to the core heat removal functions are expected to occur. Other EALs are referenced when plant conditions change or degrade. The remaining EALs used in the RCS Barrier (RCB) section provide the Operators with the necessary information to classify events appropriately based on the actual radiation levels, RCS leakage, margin-to-sat values, etc.,
without the need for a reference to Safety Functions.
to 0CAN121102 Page 55 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: RCS BARRIER (Contd)
Differences (contd):
In summary, the ORP SFSC criteria were not established to meet EAL classification requirements. The SFCSs ensure Safety Function status is verified and updated at regular intervals so that changes in plant conditions may be recognized promptly and to enable trending of plant parameters important to safety. Based on the above, Entergy proposes to not adopt the use of Safety Functions in the RCS Barrier EAL. Subsequently, the NEI 99-01 RCBs are renumbered in the ANO EALs for formatting purposes based on the non-use of the Safety Function Status RCB criteria.
The ANO Unit 2 design uses three positive displacement charging pumps for normal RCS makeup. The plant design specifics of the positive displacement pump is that the flow from a charging pump is not variable, but provides 44 gpm discrete flow and flow rises or lowers based on the number of pumps in service. Therefore, ANO uses 44 gpm for the EAL vice the NEI 99-01 developers note guidance of 50 gpm for plants with low capacity charging pumps.
The use of this 44 gpm value supports the NEI basis statement that additional charging pumps being required is indicative of a substantial RCS leak.
The term loss of adequate subcooling margin is used for Unit 1 and the inability to maintain RCS subcooling at least 30 &deg;F for Unit 2 to indicate a loss of subcooling.
The term unisolable is included for the potential loss RCS leakage description for consistency of EAL application. Use of this term provides clarity and does not alter intent.
Site-specific detail in the bases is provided to describe makeup systems and to clarify the indications for RCS leakage potential loss.
The term SGTR for steam generator tube rupture instead of the NEI term RUPTURED SG is used. SGTR is a term readily recognized by the Operations staff and has the same meaning as the NEI term.
The EALs refer to the ECCS (SI) actuation for ANO RCB2 indicator as being caused either manually or automatically in the bases to clarify the information presented.
Site-specific information is provided in the bases regarding containment high range monitor readings during the initial fifteen minutes after a thermal event.
Additional EALs that represent a loss or potential loss of the RCS barrier were not identified for inclusion in the EAL scheme for this IC. A review of EOPs and station procedures was performed to ensure additional EAL thresholds should not be considered in the "Other" category. This conforms to NEI guidance because an appropriately diverse mix of EALs is provided and the NEI 99-01 guidance does not specify that any particular additional EALs be provided, but specifies as applicable.
The Reactor Coolant Barrier EALs are not provided in a table in the Basis Document. The EALs are presented as text. A table is used in the EAL Matrix document.
to 0CAN121102 Page 56 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: CONTAINMENT BARRIER Containment Barrier Example Thresholds LOSS                                    POTENTIAL LOSS
: 1. Critical Safety Function Status Not Applicable                            A. Containment - Red Entry Conditions Met OR
: 2. Containment Pressure A. A containment pressure rise followed  A. Containment pressure greater than by a rapid unexplained drop in           (site-specific value) and rising containment pressure                     OR OR                                    B. Explosive mixture exists inside containment B. Containment pressure or sump level       OR response not consistent with Loss of C. a. Pressure greater than containment Coolant Accident (LOCA) conditions depressurization actuation setpoint AND
: b. Less than one full train of depressurization equipment operating OR
: 3. Core Exit Thermocouple Readings Not Applicable                            A. a. Core exit thermocouples in excess of (site-specific) &deg;F AND
: b. Restoration procedures not effective within 15 minutes OR B. a. Core exit thermocouples in excess of (site-specific) &deg;F AND
: b. Reactor vessel level below (site-specific level)
AND
: c. Restoration procedures not effective within 15 minutes OR to 0CAN121102 Page 57 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: CONTAINMENT BARRIER (Contd)
Containment Barrier Example Thresholds LOSS                                     POTENTIAL LOSS
: 4. SG Secondary Side Release With P-to -S Leakage A. RUPTURED SG is also FAULTED              Not Applicable outside of containment OR B. a. Primary-to-Secondary leakrate greater than 10 gpm AND
: b. UNISOLABLE steam release from affected SG to the environment OR
: 5. Containment Isolation Failure or Bypass A. a. Failure of all valves in any one line Not Applicable to close AND
: b. Direct downstream path to the environment exists after containment isolation signal OR
: 6. Containment Radiation Monitoring Not Applicable                              A. Containment radiation monitor reading greater than (site-specific value)
OR
: 7. Other Site-Specific) Indications A. (site-specific) as applicable            A. (site-specific) as applicable OR
: 8. Emergency Director Judgment A. Any condition in the opinion of the      A. Any condition in the opinion of the Emergency Emergency Director that indicates           Director that indicates Potential Loss of the Loss of the Containment Barrier             Containment Barrier to 0CAN121102 Page 58 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: CONTAINMENT BARRIER Containment Barrier EALs LOSS                                    POTENTIAL LOSS
: 1. Safety Function Status (CNB1)
Not Applicable                            Not applicable
: 1. Containment Pressure (CNB1)
: 1. Rapid unexplained drop in              1. Unit 1: Containment pressure 73.7 PSIA containment pressure following an                 (59 PSIG) and rising initial rise in containment pressure     Unit 2: Containment pressure 73.7 PSIA and OR                                                 rising (59 PSIG)
: 2. Containment pressure or sump              OR level response not consistent with    2. Explosive mixture exists inside Containment LOCA conditions OR
: 3. a. Containment Pressure > containment spray actuation setpoint Unit 1: 44.7 PSIA (30 PSIG)
Unit 2: 23.3 PSIA (8.6 PSIG)
AND
: b. LESS THAN one full train of spray operating
: 2. Core Exit Thermocouple Readings (CNB2)
None                                      1. a. CETs indicate > 1200 &deg;F AND
: b. Restoration procedures not effective within 15 minutes OR
: 2. a. CETs indicate > 700 &deg;F AND
: b. RVLMS indicates:
Unit 1: Levels 1 through 9 DRY Unit 2: Levels 1 through 7 DRY AND
: c. Restoration procedures not effective within 15 minutes to 0CAN121102 Page 59 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: CONTAINMENT BARRIER (Contd)
Containment Barrier EALs LOSS                                      POTENTIAL LOSS
: 3. SG Secondary Side Release With Primary-to-Secondary Leakage (CNB3)
: 1. RUPTURED steam generator is            None also FAULTED outside of Containment OR
: 2. a. Primary-to-secondary leakrate
        >10 gpm AND
: b. UNISOLABLE steam release from affected steam generator to the environment
: 4. Containment Isolation Failure or Bypass (CNB4)
: 1. UNISOLABLE breach of                   None containment AND
: 2. Direct downstream pathway to the environment exists after containment isolation signal
: 5. Containment Radiation Monitoring (CNB5)
None                                      Containment high range radiation monitor reading
                                          > 4000 R/hr
: 6. Other Indications (CNB6)
Elevated readings on the following radiation monitors that indicate loss or potential loss of the Containment barrier:
MONITORS - Unit 1                              MONITORS - UNIT 2 RX-9820      Containment Purge               2RX-9820      Containment Purge RX-9825      Radwaste Area                   2RX-9825      Radwaste Area RX-9830      Fuel Handling Area              2RX-9830      Fuel Handling Area RX-9835      Emergency Penetration Room      2RX-9835      Emergency Penetration Room 2RX-9840      Post Accident Sampling Building
: 7. Emergency Director Judgment (CNB7)
Any condition in the opinion of the SM / TSC Director / EOF Director that indicates Loss or Potential Loss of the Containment Barrier to 0CAN121102 Page 60 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: CONTAINMENT BARRIER (Contd)
Deviations:
None.
Differences:
EALs for Unit 1 and Unit 2 that correspond to the Critical Safety Function Status Trees (CSFSTs) included in the NEI 99-01, Revision 5, EALs are not provided. Unit 1 (a B&W plant) does not have a Safety Function process similar to that of Westinghouse units (which are included in the NEI 99-01, Revision 5, example EALs).
Unit 2 (a CE plant) does have methodologies similar to CSFSTs with some differences. Unit 2 performs Standard Post Trip Actions (SPTA) and verifies the status of its Safety Functions (Reactivity, Vital Auxiliaries, RCS Inventory, RCS Pressure, Core Heat Removal, RCS Heat Removal, & Containment) upon any reactor trip. An evaluation is made of each of the seven Safety Functions comparing plant response and critical parameters to standard, expected values. Each Safety Function is then marked on a tracking sheet as SATISIFIED or NOT SATISIFIED. If any Safety Function is not satisfied, the condition is announced to the Control Room staff and a diagnostic flow chart is referenced to determine the proper Optimal Recovery Procedure (ORP) to enter. The diagnostic flowchart may direct the Operator to an ORP or to the Functional Recovery Procedure (FRP). The intent of this diagnostic action is to direct the Operator to the ORPs for a single event, and to the FRP for multiple events. Each ORP contains Safety Function Status Checks (SFSC) which are performed every 15 minutes. These checks ensure the Operators utilization of the ORP is properly addressing plant critical parameters. If the SFSC is not met then the FRP is entered. Criteria for FRP entry is:
: 1. ANY event in progress which can NOT be diagnosed as a single event.
: 2. Actions taken have NOT satisfied SFSC acceptance criteria.
: 3. Entry is directed by Diagnostic Actions.
While all ORPs have SFSC criteria for all Safety Functions, all ORP acceptance criteria are not the same. For example; the SFSC criteria required to SATISIFY the requirements for RCS Heat Removal (a Safety Function) is different in the SPTAs than in Loss of Coolant Accident (LOCA)
ORP, which is different than those contained in the Steam Generator Tube Rupture (SGTR)
ORP, which is different than those in the Loss of Feedwater (LOF) ORP, and so on.
To compare NEI 99-01 Safety Function intent with that of Unit 2 above, a Loss of Offsite Power (LOOP) event is correctly classified per NEI 99-01 as System Malfunction - Loss of AC Power (SU1), Loss of all offsite AC power to Vital 4.16 KV busses  15 minutes. This event is correctly classified as a NUE. However, a LOOP results in the loss of the operating Reactor Coolant Pumps due to loss of non-vital power sources. During performance of the SPTAs, the Core Heat Removal Safety Function will be assessed as NOT SATISIFIED. If NEI 99-01, Fission Product Barrier Malfunction - Barriers, is referenced, FCB1 would be applicable and the event would require declaration of an ALERT.
to 0CAN121102 Page 61 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: CONTAINMENT BARRIER (Contd)
Differences (contd):
Entergy believes erroneous classification of a standard NUE condition as a ALERT is inappropriate. Natural circulation of the reactor coolant provides adequate core cooling and no significant challenge to the core heat removal functions are expected to occur. Other EALs are referenced when plant conditions change or degrade. The remaining EALs used in the Containment Barrier (CNB) section provide the Operators with the necessary information to classify events appropriately based on the actual radiation levels, reactor vessel level, containment pressure, etc., without the need for a reference to Safety Functions.
In summary, the ORP SFSC criteria were not established to meet EAL classification requirements. The SFCSs ensure Safety Function status is verified and updated at regular intervals so that changes in plant conditions may be recognized promptly and to enable trending of plant parameters important to safety. Based on the above, Entergy proposes to not adopt the use of Safety Functions in the Containment Barrier EAL. Subsequently, the NEI 99-01 CNBs are renumbered in the ANO EALs for formatting purposes based on the non-use of the Safety Function Status CNB criteria.
The wording rapid unexplained drop in containment pressure following an initial rise in containment pressure is utilized vice the NEI (inverse) wording of a containment pressure rise followed by a rapid unexplained drop in containment pressure. This revised wording is provided for clarity and has the same meaning as the NEI wording.
Additional basis information is provided to describe the existence of an explosive mixture inside containment.
Additional site-specific basis information is provided to describe the NUE condition related to RCS leakage for SG secondary side release with primary-to-secondary leakage.
Additional basis information is provided for containment isolation failure or bypass that addresses the valve failure EAL (threshold) criteria in NEI 99-05 and clarifies classification as it relates to attempted isolation from the Control Room.
Broader terminology for ANO CNB4 other than limiting the condition to isolation valves is used.
This meets the NEI 99-01 intent because the NEI condition is bounded by the EAL chosen for ANO and the basis information is unchanged.
Basis information is added for containment radiation monitoring that states that the value provided represents in itself indication for a General Emergency classification because the value also exceeds the loss EALs for fuel clad and RCS.
Other indications of the loss of the containment barrier based on radiation monitor readings are provided.
The Containment Barrier EALs are not provided in a table in the Basis Document. The EALs are presented as text. A table is used in the EAL Matrix document.
to 0CAN121102 Page 62 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: HU4 Confirmed SECURITY CONDITION or threat which indicates a potential degradation in the level of safety of the plant Operating Mode Applicability:                   All Example Emergency Action Levels:                (1 or 2 or 3)
: 1. A SECURITY CONDITION that does NOT involve a HOSTILE ACTION as reported by the (site-specific security shift supervision).
: 2. A credible site-specific security threat notification.
: 3. A validated notification from NRC providing information of an aircraft threat.
ANO: HU1 Confirmed SECURITY CONDITION or threat which indicates a potential degradation in the level of safety of the plant Operating Mode Applicability:             All Emergency Action Level(s):                (1 or 2 or 3)
: 1. A SECURITY CONDITION that does not involve a HOSTILE ACTION as reported by ANO Security Shift Supervision.
OR
: 2. A credible site-specific security threat notification.
OR
: 3. A validated notification from NRC providing information of an aircraft threat.
Deviations:
None.
Differences:
NEI 99-01 HU4 is renumbered to ANO HU1 for formatting purposes based on site preference for order of ICs alone.
to 0CAN121102 Page 63 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: HU5 Other conditions exist which in the judgment of the Emergency Director warrant declaration of a NOUE.
Operating Mode Applicability:                 All Example Emergency Action Level:
: 1. Other conditions exist which in the judgment of the Emergency Director indicate that events are in progress or have occurred which 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 requiring off-site response or monitoring are expected unless further degradation of safety systems occurs.
ANO: HU2 Other conditions exist which in the judgment of the SM warrant declaration of an NUE Operating Mode Applicability:           All Emergency Action Level(s):
: 1. Other conditions exist which in the judgment of the SM indicate that events are in progress or have occurred which 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 requiring offsite response or monitoring are expected unless further degradation of safety systems occurs.
Deviations:
None.
Differences:
NEI 99-01 HU5 is renumbered to ANO HU2 for formatting purposes based on site preference for order of ICs alone.
to 0CAN121102 Page 64 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: HU2 FIRE within the PROTECTED AREA not extinguished within 15 minutes of detection or EXPLOSION within the PROTECTED AREA Operating Mode Applicability:                All Example Emergency Action Level:              (1 or 2)
Note:     The Emergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the duration has exceeded, or will likely exceed, the applicable time.
: 1. FIRE not extinguished within 15 minutes of control room notification or verification of a control room FIRE alarm in ANY of the following areas:
(site-specific area list)
: 2. EXPLOSION within the PROTECTED AREA.
to 0CAN121102 Page 65 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: HU4 FIRE within the PROTECTED AREA not extinguished within 15 minutes of detection or EXPLOSION within the PROTECTED AREA Operating Mode Applicability:        All Emergency Action Level(s):           (1 or 2)
Note:    The SM should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the duration has exceeded, or will likely exceed, the applicable time.
: 1. FIRE in any Table H1 structure or area not extinguished 1) within 15 minutes of Control Room notification or 2) within 15 minutes of verification of a Control Room FIRE alarm.
Table H1 Unit 1                                              Unit 2 CA-1 & HP Office Area                                  2A3 Room Condensate Demineralizer Room                          2A4, 2D02, & East Battery Room Corridor 98                                            2B53 Room Fire Area C                                            2B63 Room Lower North Electrical Penetration Room                2B9/2B10 Room (LNEPR)                                                2Y11/13 Equipment Room Lower South Electrical Equipment Room (LSEER)          Auxiliary Building 317 General Access
 / Air Compressor Room Auxiliary Building 335' Lower South Electrical Penetration Room Auxiliary Building 354' (LSEPR)
B Engineered Safeguards Features (ESF)
Lower South Piping Penetration Room (LSPPR)
Room Main Steam Isolation Violation (MSIV) Room Corridor Behind Door 340 North Engineered Safeguards (ES) SWGR Room Turbine Building (A4) 2A1, 2A2, 2H1, 2H2 Area South ES SWGR Room                                        354' West wall of Demineralizer area Turbine Building                                          368' West Heater Deck north of north A1, A2, H1, H2 SWGR area                                 Switchgear (SWGR) Room (2A3) and 354' Bowling Alley north end west of                     East of LNEPR Breathing Air compressor room                    Intake Structure 354' or 366' 368' West Heater Deck from LSEER (orange LNEPR door) along east wall of ES SWGR Rooms to Corridor 98 door                                 LSEPR Upper North Electrical Penetration Room                Motor-Generator (MG) Set Room (UNEPR) / Hot Tool Room / Decon Room                   Steam Pipe Area Upper South Electrical Penetration Room                Hot Machine Shop (USEPR)                                                UNEPR, UNPPR, LNPPR, USPPR Upper South Piping Penetration Room (USPPR) to 0CAN121102 Page 66 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: HU4 (Contd)
OR
: 2. EXPLOSION within the PROTECTED AREA.
Deviations:
None.
Differences:
NEI 99-01 HU2 is renumbered to ANO HU4 for formatting purposes based on site preference for order of ICs alone.
Site-specific areas for EAL #1 are presented in a table and the table is referenced causing a minor difference in EAL language from that in NEI 99-01.
to 0CAN121102 Page 67 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: HU3 Release of toxic, corrosive, asphyxiant, or flammable gases deemed detrimental to NORMAL PLANT OPERATIONS Operating Mode Applicability:                All Example Emergency Action Levels:             (1 or 2)
: 1. Toxic, corrosive, asphyxiant or flammable gases in amounts that have or could adversely affect NORMAL PLANT OPERATIONS.
: 2. Report by local, county or state officials for evacuation or sheltering of site personnel based on an off-site event.
ANO: HU5 Release of toxic, corrosive, asphyxiant, or flammable gases deemed detrimental to NORMAL PLANT OPERATIONS Operating Mode Applicability:         All Emergency Action Level(s):            (1 or 2)
: 1. Toxic, corrosive, asphyxiant or flammable gases in amounts that have or could adversely affect NORMAL PLANT OPERATIONS.
OR
: 2. Report by Local, County or State officials for evacuation or sheltering of site personnel based on an offsite event.
Deviations:
None.
Differences:
NEI 99-01 HU3 is renumbered to ANO HU5 for formatting purposes based on site preference for order of ICs alone. In an attempt to group families of emergency classes together with the same last digit Arabic numeral designation (such as HU1, AU1, AS1, etc.), an IC-labeled HU3 is not provided. All NEI 99-01 NOUE ICs for the Hazards and Other Conditions Affecting Plant Safety category are still addressed in the ANO EALs.
to 0CAN121102 Page 68 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: HU1 Natural or destructive phenomena affecting the PROTECTED AREA Operating Mode Applicability:                All Example Emergency Action Levels:             (1 or 2 or 3 or 4 or 5)
: 1. Seismic event identified by ANY 2 of the following:
Seismic event confirmed by (site-specific indication or method)
Earthquake felt in plant National Earthquake Center
: 2. Tornado striking within PROTECTED AREA boundary or high winds greater than (site-specific mph).
: 3. Internal flooding that has the potential to affect safety-related equipment required by Technical Specifications for the current operating mode in ANY of the following areas:
(site-specific area list)
: 4. Turbine failure resulting in casing penetration or damage to turbine or generator seals.
: 5.   (Site-specific occurrences affecting the PROTECTED AREA).
ANO: HU6 Natural or destructive phenomena affecting the PROTECTED AREA Operating Mode Applicability:          All Emergency Action Level(s):             (1 or 2 or 3 or 4 or 5 or 6)
: 1. Seismic event identified by any 2 of the following:
Seismic event confirmed by annunciation of the 0.01g acceleration alarm Earthquake felt in plant National Earthquake Center OR
: 2. Tornado striking within PROTECTED AREA boundary or high winds > 67 mph.
OR to 0CAN121102 Page 69 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: HU6 (Contd)
: 3. Internal flooding that has the potential to affect safety-related equipment required by Technical Specifications for the current operating mode in any of the structures or areas in Table H1.
Table H1 Unit 1                                              Unit 2 CA-1 & HP Office Area                                      2A3 Room Condensate Demineralizer Room                              2A4, 2D02, & East Battery Room Corridor 98                                                2B53 Room Fire Area C                                                2B63 Room Lower North Electrical Penetration Room (LNEPR)            2B9/2B10 Room Lower South Electrical Equipment Room (LSEER) /            2Y11/13 Equipment Room Air Compressor Room                                        Auxiliary Building 317 General Access Lower South Electrical Penetration Room (LSEPR)            Auxiliary Building 335' Lower South Piping Penetration Room (LSPPR)                Auxiliary Building 354' Main Steam Isolation Violation (MSIV) Room                 B Engineered Safeguards Features North Engineered Safeguards (ES) SWGR Room                 (ESF) Room (A4)                                                       Corridor Behind Door 340 South ES SWGR Room                                         Turbine Building Turbine Building                                              2A1, 2A2, 2H1, 2H2 Area A1, A2, H1, H2 SWGR area                                  354' West wall of Demineralizer area 354' Bowling Alley north end west of Breathing            368' West Heater Deck north of Air compressor room                                        north Switchgear (SWGR) Room 368' West Heater Deck from LSEER (orange                     (2A3) and East of LNEPR door) along east wall of ES SWGR Rooms to            Intake Structure 354' or 366' Corridor 98 door.
LNEPR Upper North Electrical Penetration Room (UNEPR) /
LSEPR Hot Tool Room / Decon Room Motor-Generator (MG) Set Room Upper South Electrical Penetration Room (USEPR)
Steam Pipe Area Upper South Piping Penetration Room (USPPR)
Hot Machine Shop UNEPR, UNPPR, LNPPR, USPPR OR
: 4. Turbine failure resulting in casing penetration or damage to turbine or generator seals.
OR
: 5. Lake Dardanelle level < 335 feet.
OR
: 6. Lake Dardanelle level > 345 feet.
to 0CAN121102 Page 70 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: HU6 (Contd)
Deviations:
None.
Differences:
NEI 99-01 HU1 is renumbered to ANO HU6 for formatting purposes based on site preference for order of ICs alone.
Site-specific information is added on Safety Analysis Report (SAR) design basis in the bases for EAL #2.
Site-specific areas for EAL #3 are presented in a table and the table is referenced causing a minor difference in EAL language from that in NEI 99-01.
The reference to VISIBLE DAMAGE is removed from the bases for EAL #3 for escalation information because NEI 99-01 does not refer to VISIBLE DAMAGE for the corresponding Alert classification in HA1 EAL #3.
An evaluation was performed to determine if any other site-specific occurrences were applicable to ANO. Lake Dardanelle levels were determined to be the only other site-specific occurrences that warrant declaration of an NUE. These EALs were added as EALs #5 and #6.
to 0CAN121102 Page 71 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: HA4 HOSTILE ACTION within the OWNER CONTROLLED AREA or airborne attack threat Operating Mode Applicability:                 All Example Emergency Action Levels:              (1 or 2)
: 1. A HOSTILE ACTION is occurring or has occurred within the OWNER CONTROLED AREA as reported by the (site-specific security shift supervision).
: 2. A validated notification from NRC of an airliner attack threat within 30 minutes of the site.
ANO: HA1 HOSTILE ACTION within the OWNER CONTROLLED AREA or airborne attack threat Operating Mode Applicability:          All Emergency Action Level(s):             (1 or 2)
: 1. A HOSTILE ACTION is occurring or has occurred within the OWNER CONTROLLED AREA as reported by ANO Security Shift Supervision.
OR
: 2. A validated notification from NRC of an airliner attack threat within 30 minutes of the site.
Deviations:
None.
Differences:
NEI 99-01 HA4 is renumbered to ANO HA1 for formatting purposes based on site preference for order of ICs alone.
to 0CAN121102 Page 72 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: HA6 Other conditions exist which in the judgment of the Emergency Director warrant declaration of an Alert.
Operating Mode Applicability:                All Example Emergency Action Level:
: 1. Other conditions exist which in the judgment of the Emergency Director indicate that events are in progress or have occurred which 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 because of HOSTILE ACTION. Any releases are expected to be limited to small fractions of the Environmental Protection Agency (EPA) Protective Action Guideline exposure levels.
ANO: HA2 Other conditions exist which in the judgment of the SM / TSC Director / EOF Director warrant declaration of an Alert.
Operating Mode Applicability:          All Emergency Action Level(s):
: 1. Other conditions exist which in the judgment of the SM / TSC Director / EOF Director indicate that events are in progress or have occurred which 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 because of HOSTILE ACTION. Any releases are expected to be limited to small fractions of the EPA Protective Action Guideline exposure levels.
Deviations:
None.
Differences:
NEI 99-01 HA6 is renumbered to ANO HA2 for formatting purposes based on site preference for order of ICs alone.
to 0CAN121102 Page 73 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: HA5 Control room evacuation has been initiated.
Operating Mode Applicability:              All Example Emergency Action Level:
: 1.   (Site-specific procedure) requires control room evacuation.
ANO: HA3 Control Room evacuation has been initiated.
Operating Mode Applicability:        All Emergency Action Level(s):
: 1. Alternate Shutdown procedure requires Control Room evacuation:
Unit 1: 1203.002, Alternate Shutdown Unit 2: 2203.014, Alternate Shutdown Deviations:
None.
Differences:
NEI 99-01 HA5 is renumbered to ANO HA3 for formatting purposes based on site preference for order of ICs alone.
to 0CAN121102 Page 74 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: HA2 FIRE or EXPLOSION affecting the operability of plant safety systems required to establish or maintain safe shutdown Operating Mode Applicability:            All Example Emergency Action Level:
: 1. FIRE or EXPLOSION resulting in VISIBLE DAMAGE to ANY of the following structures containing safety systems or components OR control room indication of degraded performance of those safety systems:
(site-specific structure list) to 0CAN121102 Page 75 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: HA4 FIRE or EXPLOSION affecting the operability of plant safety systems required to establish or maintain safe shutdown Operating Mode Applicability:       All Emergency Action Level(s):
: 1. FIRE or EXPLOSION resulting in VISIBLE DAMAGE to any Table H1 structure or area containing safety systems or components or Control Room indication of degraded performance of those safety systems.
Table H1 Unit 1                                          Unit 2 CA-1 & HP Office Area                               2A3 Room Condensate Demineralizer Room                       2A4, 2D02, & East Battery Room Corridor 98                                         2B53 Room Fire Area C                                         2B63 Room Lower North Electrical Penetration Room             2B9/2B10 Room (LNEPR)                                             2Y11/13 Equipment Room Lower South Electrical Equipment Room (LSEER)       Auxiliary Building 317 General Access
 / Air Compressor Room Auxiliary Building 335' Lower South Electrical Penetration Room Auxiliary Building 354' (LSEPR)
B Engineered Safeguards Features (ESF)
Lower South Piping Penetration Room (LSPPR)
Room Main Steam Isolation Violation (MSIV) Room Corridor Behind Door 340 North Engineered Safeguards (ES) SWGR Room Turbine Building (A4) 2A1, 2A2, 2H1, 2H2 Area South ES SWGR Room                                     354' West wall of Demineralizer area Turbine Building                                       368' West Heater Deck north of north A1, A2, H1, H2 SWGR area                              Switchgear (SWGR) Room (2A3) and 354' Bowling Alley north end west of                  East of LNEPR Breathing Air compressor room                 Intake Structure 354' or 366' 368' West Heater Deck from LSEER (orange LNEPR door) along east wall of ES SWGR Rooms to Corridor 98 door.                             LSEPR Upper North Electrical Penetration Room             Motor-Generator (MG) Set Room (UNEPR) / Hot Tool Room / Decon Room                Steam Pipe Area Upper South Electrical Penetration Room             Hot Machine Shop (USEPR)                                             UNEPR, UNPPR, LNPPR, USPPR Upper South Piping Penetration Room (USPPR) to 0CAN121102 Page 76 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: HA4 (Contd)
Deviations:
None.
Differences:
NEI 99-01 HA2 is renumbered to ANO HA4 for formatting purposes based on site preference for order of ICs alone.
to 0CAN121102 Page 77 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: HA3 Access to a VITAL AREA is prohibited due to toxic, corrosive, asphyxiant, or flammable gases which jeopardize operation of operable equipment required to maintain safe operations or safely shutdown the reactor.
Operating Mode Applicability:                All Example Emergency Action Levels:
Note:     If the equipment in the stated area was already inoperable, or out of service, before the event occurred, then this EAL should not be declared as it will have no adverse impact on the ability of the plant to safely operate or safely shutdown beyond that already allowed by Technical Specifications at the time of the event.
: 1. Access to a VITAL AREA is prohibited due to toxic, corrosive, asphyxiant, or flammable gases which jeopardize operation of systems required to maintain safe operations or safely shutdown the reactor.
ANO: HA5 Access to a VITAL AREA is prohibited due to toxic, corrosive, asphyxiant, or flammable gases which jeopardize operation of operable equipment required to maintain safe operations or safely shutdown the reactor.
Operating Mode Applicability:          All Emergency Action Level(s):
Note:     If the equipment in the stated area was already inoperable, or out of service, before the event occurred, then this EAL should not be declared as it will have no adverse impact on the ability of the plant to safely operate or safely shutdown beyond that already allowed by Technical Specifications at the time of the event.
: 1. Access to a VITAL AREA is prohibited due to toxic, corrosive, asphyxiant, or flammable gases which jeopardize operation of systems required to maintain safe operations or safely shutdown the reactor.
Deviations:
None.
Differences:
NEI 99-01 HA3 is renumbered to ANO HA5 for formatting purposes based on site preference for order of ICs alone.
to 0CAN121102 Page 78 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: HA1 Natural or Destructive Phenomena Affecting VITAL AREAs Operating Mode Applicability:               All Example Emergency Action Levels:            (1 or 2 or 3 or 4 or 5 or 6)
: 1. a. Seismic event greater than Operating Basis Earthquake (OBE) as indicated by (site-specific seismic instrumentation) reading (site-specific OBE limit).
AND
: b. Earthquake confirmed by ANY of the following:
Earthquake felt in plant National Earthquake Center Control Room indication of degraded performance of systems required for the safe shutdown of the plant
: 2. Tornado striking or high winds greater than (site-specific mph) resulting in VISIBLE DAMAGE to ANY of the following structures containing safety systems or components OR control room indication of degraded performance of those safety systems:
(site-specific structure list)
: 3. Internal flooding in ANY of the following areas resulting in an electrical shock hazard that precludes access to operate or monitor safety equipment OR control room indication of degraded performance of those safety systems:
(site-specific area list)
: 4. Turbine failure-generated PROJECTILES resulting in VISIBLE DAMAGE to or penetration of ANY of the following structures containing safety systems or components OR control room indication of degraded performance of those safety systems:
(site-specific structure list)
: 5. Vehicle crash resulting in VISIBLE DAMAGE to ANY of the following structures containing safety systems or components OR control room indication of degraded performance of those safety systems:
(site-specific structure list)
: 6.   (Site-specific occurrences) resulting in VISIBLE DAMAGE to ANY of the following structures containing safety systems or components OR control room indication of degraded performance of those safety systems:
to 0CAN121102 Page 79 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: HA6 Natural or destructive phenomena affecting VITAL AREAS Operating Mode Applicability:          All Emergency Action Level(s):             (1 or 2 or 3 or 4 or 5 or 6)
: 1. a. Seismic event > Operating Basis Earthquake (OBE) as indicated by annunciation of the 0.1g acceleration alarm.
AND
: b. Earthquake confirmed by any of the following:
Earthquake felt in plant National Earthquake Center Control Room indication of degraded performance of systems required for the safe shutdown of the plant OR
: 2. Tornado striking or high winds > 67 mph resulting in VISIBLE DAMAGE to any of the following structures/equipment containing safety systems or components or Control Room indication of degraded performance of those safety systems:
Reactor Building                       Turbine Building Intake Structure                       Q Condensate Storage Tank (QCST)
Ultimate Heat Sink                     Control Room Startup Transformers                   Auxiliary Building Diesel Fuel Vault                      Borated Water Storage Tank (BWST)
Refueling Water Tank (RWT)
OR
: 3. Internal flooding in any of the following areas resulting in an electrical shock hazard that precludes access to operate or monitor safety equipment or Control Room indication of degraded performance of those safety systems:
Intake Structure                       Turbine Building Ultimate Heat Sink                     Control Room BWST / RWT                             Startup Transformers Auxiliary Building                     Diesel Fuel Vault QCST to 0CAN121102 Page 80 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: HA6 (Contd)
Emergency Action Level(s) (Contd)
OR
: 4. Turbine failure-generated PROJECTILES resulting in VISIBLE DAMAGE to or penetration of any of the structures/equipment in Table H2 containing safety systems or components or Control Room indication of degraded performance of those safety systems.
Table H2 Reactor Building         Turbine Building Intake Structure              QCST Ultimate Heat Sink          Control Room BWST/RWT            Startup Transformers Auxiliary Building       Diesel Fuel Vault OR
: 5. Lake Dardanelle level < 335 feet and Emergency Cooling Pond inoperable.
OR
: 6. Vehicle crash resulting in VISIBLE DAMAGE to any of the structures/equipment in Table H2 containing safety systems or components or Control Room indication of degraded performance of those safety systems.
Table H2 Reactor Building         Turbine Building Intake Structure              QCST Ultimate Heat Sink          Control Room BWST/RWT            Startup Transformers Auxiliary Building       Diesel Fuel Vault Deviations:
None.
to 0CAN121102 Page 81 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: HA6 (Contd)
Differences:
NEI 99-01 HA1 is renumbered to ANO HA6 for formatting purposes based on site preference for order of ICs alone.
Site-specific information is added on SAR design basis in the bases for EAL #2.
Site-specific areas for EALs #4 and #6 are presented in a table and the table is referenced causing a minor difference in EAL language from that in NEI 99-01.
An evaluation was performed to determine if any other site-specific occurrences were applicable to ANO. Lake Dardanelle low level with the Emergency Cooling Pond inoperable was determined to be the only other site-specific occurrence that warrants declaration of an Alert.
EAL #5 was added. The NEI EAL #5 was renumbered as EAL #6 to provide consistency between NUE and Alert EALs for lake level.
to 0CAN121102 Page 82 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: HS4 HOSTILE ACTION within the PROTECTED AREA Operating Mode Applicability:                All Example Emergency Action Level:
: 1. A HOSTILE ACTION is occurring or has occurred within the PROTECTED AREA as reported by the (site security shift supervision).
ANO: HS1 HOSTILE ACTION within the PROTECTED AREA Operating Mode Applicability:         All Emergency Action Level(s):
: 1. A HOSTILE ACTION is occurring or has occurred within the PROTECTED AREA as reported by ANO Security Shift Supervision.
Deviations:
None.
Differences:
NEI 99-01 HS4 is renumbered to ANO HS1 for formatting purposes based on site preference for order of ICs alone.
to 0CAN121102 Page 83 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: HS3 Other conditions exist which in the judgment of the Emergency Director warrant declaration of a Site Area Emergency.
Operating Mode Applicability:                  All Example Emergency Action Level:
: 1. Other conditions exist which in the judgment of the Emergency Director indicate that events are in progress or have occurred which involve actual or likely major failures of plant functions needed for protection of the public 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) that prevent effective access to equipment needed for the protection of the public. Any releases are not expected to result in exposure levels which exceed EPA Protective Action Guideline exposure levels beyond the site boundary.
ANO: HS2 Other conditions exist which in the judgment of the SM / TSC Director / EOF Director warrant declaration of a Site Area Emergency Operating Mode Applicability:            All Emergency Action Level(s):
: 1. Other conditions exist which in the judgment of the SM / TSC Director / EOF Director indicate that events are in progress or have occurred which involve actual or likely major failures of plant functions needed for protection of the public 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) that prevent effective access to equipment needed for the protection of the public. Any releases are not expected to result in exposure levels which exceed EPA Protective Action Guideline exposure levels beyond the site boundary.
Deviations:
None.
Differences:
NEI 99-01 HS3 is renumbered to ANO HS2 for formatting purposes based on site preference for order of ICs alone.
to 0CAN121102 Page 84 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: HS2 Control room evacuation has been initiated and plant control cannot be established.
Operating Mode Applicability:              All Example Emergency Action Level:
: 1. a. Control room evacuation has been initiated.
AND
: b. Control of the plant cannot be established within (site-specific minutes).
ANO: HS3 Control Room evacuation has been initiated and plant control cannot be established Operating Mode Applicability:        All Emergency Action Level(s):
: 1. a. Control Room evacuation has been initiated AND
: b. Control of the plant cannot be established in accordance with the following procedures within 15 minutes:
Unit 1: 1203.002, Alternate Shutdown Unit 2: 2203.014, Alternate Shutdown Deviations:
None.
Differences:
NEI 99-01 HS2 is renumbered to ANO HS3 for formatting purposes based on site preference for order of ICs alone.
The procedural reference is included in the EAL for consistency with HA3.
to 0CAN121102 Page 85 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: HG1 HOSTILE ACTION resulting in loss of physical control of the facility.
Operating Mode Applicability:                   All Example Emergency Action Level:                 (1 or 2)
: 1. A HOSTILE ACTION has occurred such that plant personnel are unable to operate equipment required to maintain safety functions.
: 2. A HOSTILE ACTION has caused failure of Spent Fuel Cooling Systems and IMMINENT fuel damage is likely for a freshly off-loaded reactor core in pool.
ANO: HG1 HOSTILE ACTION resulting in loss of physical control of the facility Operating Mode Applicability:             All Emergency Action Level(s):                (1 or 2)
: 1. A HOSTILE ACTION has occurred such that plant personnel are unable to operate equipment required to maintain safety functions.
OR
: 2. A HOSTILE ACTION has caused failure of Spent Fuel Cooling Systems and IMMINENT fuel damage is likely for a freshly off-loaded reactor core in pool.
Deviations:
None.
Differences:
None.
to 0CAN121102 Page 86 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: HG2 Other conditions exist which in the judgment of the Emergency Director warrant declaration of a General Emergency.
Operating Mode Applicability:                All Example Emergency Action Level:
: 1. Other conditions exist which in the judgment of the Emergency Director indicate that events are in progress or have occurred which involve actual or IMMINENT substantial core degradation or melting with potential for loss of containment integrity or HOSTILE ACTION that results in an actual loss of physical control of the facility. Releases can be reasonably expected to exceed EPA Protective Action Guideline exposure levels offsite for more than the immediate site area.
ANO: HG2 Other conditions exist which in the judgment of the SM / TSC Director / EOF Director warrant declaration of a General Emergency.
Operating Mode Applicability:          All Emergency Action Level(s):
: 1. Other conditions exist which in the judgment of the SM / TSC Director / EOF Director indicate that events are in progress or have occurred which involve actual or IMMINENT substantial core degradation or melting with potential for loss of containment integrity or HOSTILE ACTION that results in an actual loss of physical control of the facility. Releases can be reasonably expected to exceed EPA Protective Action Guideline exposure levels offsite for more than the immediate site area.
Deviations:
None.
Differences:
None.
to 0CAN121102 Page 87 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: SU1 Loss of all Off-site AC power to emergency busses for 15 minutes or longer.
Operating Mode Applicability:                Power Operation Startup Hot Standby Hot Shutdown Example Emergency Action Level:
Note:    The Emergency Director should not wait until the applicable time has elapsed but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. Loss of all off-site AC power to (site-specific emergency busses) for 15 minutes or longer.
ANO: SU1 Loss of all offsite AC power to Vital 4.16 KV busses  15 minutes Operating Mode Applicability:         Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Emergency Action Level(s):
Note:    The SM should not wait until the applicable time has elapsed but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. Loss of all offsite AC power to Vital 4.16 KV busses  15 minutes.
Deviations:
None.
Differences:
The site-specific term Vital 4.16 KV is used in the IC and EAL to define emergency busses.
to 0CAN121102 Page 88 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: SU3 UNPLANNED loss of safety system annunciation or indication in the control room for 15 minutes or longer.
Operating Mode Applicability:                Power Operation Startup Hot Standby Hot Shutdown Example Emergency Action Level:
Note:     The Emergency Director should not wait until the applicable time has elapsed but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. UNPLANNED Loss of greater than approximately 75% of the following for 15 minutes or longer:
: a.   (Site-specific control room safety system annunciation)
OR
: b.   (Site-specific control room safety system indication) to 0CAN121102 Page 89 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: SU6 UNPLANNED loss of safety system annunciation or indication in the Control Room  15 minutes Operating Mode Applicability:         Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Emergency Action Level(s):
Note:     The SM should not wait until the applicable time has elapsed but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. UNPLANNED loss of > approximately 75% of the following  15 minutes:
: a. Control Room annunciators associated with safety systems.
OR
: b. Control Room safety system indication.
Deviations:
None.
Differences:
NEI 99-01 SU3 is renumbered to ANO SU6 for formatting purposes based on site preference for order of ICs alone. In an attempt to group families of emergency classes together with the same last digit Arabic numeral designation (such as SU1, SA1, SS1, etc.), ICs labeled SU2, SU3, SU4, and SU5 are not provided. All NEI 99-01 NOUE ICs for the System Malfunction category are still addressed in the ANO EALs.
Additional information is provided in the bases to define those systems associated with safety system indication.
to 0CAN121102 Page 90 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: SU5 RCS leakage Operating Mode Applicability:               Power Operation Startup Hot Standby Hot Shutdown Example Emergency Action Levels:            (1 or 2)
: 1. Unidentified or pressure boundary leakage greater than 10 gpm.
: 2. Identified leakage greater than 25 gpm.
ANO: SU7 RCS leakage Operating Mode Applicability:         Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Emergency Action Level(s):            (1 or 2)
: 1. Unidentified or pressure boundary leakage > 10 gpm.
OR
: 2. Identified leakage > 25 gpm.
Deviations:
None.
Differences:
Because prompt, procedurally driven action can be taken to isolate some sources of potential RCS leakage (such as isolating the Letdown system), the ANO basis document further defines this leakage to be a loss of RCS inventory due to a leak in the RCS or a supporting system that is not or cannot be isolated within 10 minutes. This clarification meets the intent of NEI 99-01.
NEI 99-01 SU5 is renumbered to ANO SU7 for formatting purposes based on site preference for order of ICs alone.
Basis information is added noting that steam generator tube leakage is considered as identified leakage.
to 0CAN121102 Page 91 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-07: SU6 Loss of All On-site or Off-site communications capabilities Operating Mode Applicability:                 Power Operation Startup Hot Standby Hot Shutdown Example Emergency Action Levels:              (1 or 2)
: 1. Loss of all of the following on-site communication methods affecting the ability to perform routine operations.
(site-specific list of communications methods) 2    Loss of all of the following off-site communication methods affecting the ability to perform offsite notifications.
(site-specific list of communications methods)
ANO: SU8 Loss of all onsite or offsite communications capabilities Operating Mode Applicability:           Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Emergency Action Level(s):              (1 or 2)
: 1. Loss of all Table M1 onsite communications methods affecting the ability to perform routine operations.
OR to 0CAN121102 Page 92 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: SU8 (Contd)
: 2. Loss of all Table M2 offsite communications methods affecting the ability to perform offsite notifications.
Table M1 Table M2 Onsite Communications Offsite Communications Methods Methods Station radio system              All telephone lines (commercial and microwave)
Plant paging system                                      ENS In-plant telephones Gaitronics Deviations:
None.
Differences:
NEI 99-01 SU6 is renumbered to ANO SU8 for formatting purposes based on site preference for order of ICs alone.
Onsite and offsite communications methods are presented in tables and the tables are referenced causing a minor difference in EAL language from that in NEI 99-01.
to 0CAN121102 Page 93 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: SU4 Fuel clad degradation Operating Mode Applicability:                Power Operation Startup Hot Standby Hot Shutdown Example Emergency Action Levels:             (1 or 2)
: 1.   (Site-specific radiation monitor readings indicating fuel clad degradation greater than Technical Specification allowable limits.)
: 2.   (Site-specific coolant sample activity value indicating fuel clad degradation greater than Technical Specification allowable limits.)
ANO: SU9 Fuel clad degradation Operating Mode Applicability:          Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Emergency Action Level(s):
: 1. Failed Fuel Iodine radiation monitor reading indicates fuel clad degradation > Technical Specification allowable limits:
Unit 1:
RI-1237S reads > 1.3 x 105 counts per minute Unit 2:
2RITS-4806B reads > .65 x 105 counts per minute OR to 0CAN121102 Page 94 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: SU9 (Contd)
: 2. RCS sample activity value indicating fuel clad degradation > Technical Specification allowable limits:
      > 1.0 uCi/gm Dose Equivalent I-131 (DEI) for more than 48 hours OR Unit 1:
60 uCi/gm Dose Equivalent I-131 Unit 2:
        > 60 uCi/gm Dose Equivalent I-131 OR Unit 1:
        > 2200 &#xb5;Ci/gm Dose Equivalent Xe-133 for more than 48 hours Unit 2:
        > 3100 &#xb5;Ci/gm Dose Equivalent Xe-133 for more than 48 hours Deviations:
None.
Differences:
NEI 99-01 SU4 is renumbered to ANO SU9 for formatting purposes based on site preference for order of ICs alone.
An EAL value and associated basis information are provided for the nominal operating limit for DEI for RCS activity in addition to the transient iodine spiking limit described in NEI 99-01. This value is also provided for Dose Equivalent Xe-133 in accordance with the stations Technical Specifications.
to 0CAN121102 Page 95 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: SU8 Inadvertent criticality Operating Mode Applicability:           Hot Standby Hot Shutdown Example Emergency Action Level:         (1 or 2)
: 1. UNPLANNED sustained positive period observed on nuclear instrumentation. [BWR]
: 1. UNPLANNED sustained positive startup rate observed on nuclear instrumentation. [PWR]
ANO: SU10 Inadvertent criticality Operating Mode Applicability:      Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Emergency Action Level(s):
: 1. UNPLANNED sustained positive startup rate observed on nuclear instrumentation.
Deviations:
None.
Differences:
NEI 99-01 SU8 is renumbered to ANO SU10 for formatting purposes based on site preference for order of ICs alone.
to 0CAN121102 Page 96 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: SU2 Inability to reach required shutdown within Technical Specification limits Operating Mode Applicability:               Power Operation Startup Hot Standby Hot Shutdown Example Emergency Action Level:
: 1. Plant is not brought to required operating mode within Technical Specifications Limiting Condition for Operation (LCO) Action Statement Time.
ANO: SU11 Inability to reach required operating mode within Technical Specification limits Operating Mode Applicability:         Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Emergency Action Level(s):
: 1. Plant is not brought to required operating mode within Technical Specifications LCO action statement time.
Deviations:
None.
Differences:
NEI 99-01 SU2 is renumbered to ANO SU11 for formatting purposes based on site preference for order of ICs alone.
The NEI IC is changed to refer to required operating mode vice shutdown to provide clarity and agreement with the associated NEI EAL and bases. This change does not alter the meaning or intent of the IC.
to 0CAN121102 Page 97 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: SA5 AC power capability to emergency busses reduced to a single power source for 15 minutes or longer such that any additional single failure would result in station blackout Operating Mode Applicability:               Power Operation Startup Hot Standby Hot Shutdown Example Emergency Action Level:
Note:    The Emergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. a. AC power capability to (site-specific emergency busses) reduced to a single power source for 15 minutes or longer.
AND
: b. Any additional single power source failure will result in station blackout.
to 0CAN121102 Page 98 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: SA1 AC power capability to Vital 4.16 KV busses reduced to a single power source  15 minutes such that any additional single failure would result in station blackout Operating Mode Applicability:         Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Emergency Action Level(s):
Note:     The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. a. AC power capability to Vital 4.16 KV busses reduced to a single power source 15 minutes.
AND
: b. Any additional single power source failure will result in station blackout.
Deviations:
None.
Differences:
NEI 99-01 SA5 is renumbered to ANO SA1 for formatting purposes based on site preference for order of ICs alone.
The site-specific term Vital 4.16 KV is used in the IC and EAL to define emergency busses.
to 0CAN121102 Page 99 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: SA2 Automatic Scram (Trip) fails to shutdown the reactor and the manual actions taken from the reactor control console are successful in shutting down the reactor.
Operating Mode Applicability:                Power Operation Startup Example Emergency Action Level:
: 1. a. An automatic scram (trip) failed to shutdown the reactor.
AND
: b. Manual actions taken at the reactor control console successfully shutdown the reactor as indicated by (site-specific indications of plant shutdown).
ANO: SA3 Automatic trip fails to shutdown the reactor and the manual actions taken from the reactor control console are successful in shutting down the reactor Operating Mode Applicability:          Power Operations (Mode 1)
Startup (Mode 2)
Emergency Action Level(s):
: 1. a. An automatic trip failed to shutdown the reactor as indicated by reactor power  5%.
AND
: b. Manual actions taken at the reactor control console successfully shutdown the reactor as indicated by reactor power < 5%.
Deviations:
None.
Differences:
NEI 99-01 SA2 is renumbered to ANO SA3 for formatting purposes based on site preference for order of ICs alone.
The site-specific % reactor power is used to indicate both when the automatic reactor trip is not successful and when the manual reactor trip is successful.
Additional information is provided in the bases to define a failure of the manual trip function.
to 0CAN121102 Page 100 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: SA4 UNPLANNED Loss of safety system annunciation or indication in the control room with either (1) a SIGNIFICANT TRANSIENT in progress, or (2) compensatory indicators unavailable.
Operating Mode Applicability:               Power Operation Startup Hot Standby Hot Shutdown Example Emergency Action Level:
Note:    The Emergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. a. UNPLANNED loss of greater than approximately 75% of the following for 15 minutes or longer:
(Site-specific control room safety system annunciation)
OR (Site-specific control room safety system indication)
: b. EITHER of the following:
A SIGNIFICANT TRANSIENT is in progress.
Compensatory indications are unavailable.
to 0CAN121102 Page 101 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: SA6 UNPLANNED loss of safety system annunciation or indication in the Control Room with either (1) a SIGNIFICANT TRANSIENT in progress, or (2) compensatory indicators unavailable Operating Mode Applicability:         Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Emergency Action Levels(s):
Note:     The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. a. UNPLANNED loss of > approximately 75% of the following  15 minutes:
Control Room annunciators associated with safety systems OR Control Room safety system indication AND
: b. Either of the following:
A SIGNIFICANT TRANSIENT is in progress OR Compensatory indications are unavailable Deviations:
None.
Differences:
NEI 99-01 SA4 is renumbered to ANO SA6 for formatting purposes based on site preference for order of ICs alone.
An and and an additional or are used in the EAL for clarity.
Additional information is provided in the bases with the term SPDS to define computer based information.
Additional information is provided in the bases to define those systems associated with safety system indication.
to 0CAN121102 Page 102 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: SS1 Loss of all Off-site and all On-Site AC power to emergency busses for 15 minutes or longer.
Operating Mode Applicability:                 Power Operation Startup Hot Standby Hot Shutdown Example Emergency Action Level:
Note:    The Emergency Director should not wait until the applicable time has elapsed but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. Loss of all Off-Site and all On-Site AC power to (site-specific emergency busses) for 15 minutes or longer.
ANO: SS1 Loss of all offsite and all onsite AC power to Vital 4.16 KV busses  15 minutes Operating Mode Applicability:           Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Emergency Action Level(s):
Note:    The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. Loss of all offsite and all onsite AC power to Vital 4.16 KV busses  15 minutes.
Deviations:
None.
Differences:
The site-specific term Vital 4.16 KV is used in the IC and EAL to define emergency busses.
to 0CAN121102 Page 103 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: SS2 Automatic Scram (Trip) fails to shutdown the reactor and manual actions taken from the reactor control console are not successful in shutting down the reactor.
Operating Mode Applicability:                Power Operation Startup Example Emergency Action Level:
: 1. a. An automatic scram (trip) failed to shutdown the reactor.
AND
: b. Manual actions taken at the reactor control console do not shutdown the reactor as indicated by (site-specific indications of reactor not shutdown).
ANO: SS3 Automatic trip fails to shutdown the reactor and manual actions taken from the reactor control console are not successful in shutting down the reactor.
Operating Mode Applicability:          Power Operations (Mode 1)
Startup (Mode 2)
Emergency Action Level(s):
: 1. a. An automatic trip failed to shutdown the reactor.
AND
: b. Manual actions taken at the reactor control console do not shutdown the reactor as indicated by reactor power  5%.
Deviations:
None.
Differences:
NEI 99-01 SS2 is renumbered to ANO SS3 for formatting purposes based on site preference for order of ICs alone.
Additional information is provided in the bases to define a failure of the manual trip function.
to 0CAN121102 Page 104 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: SS3 Loss of all vital DC power for 15 minutes or longer.
Operating Mode Applicability:                Power Operation Startup Hot Standby Hot Shutdown Example Emergency Action Level:
Note:     The Emergency Director should not wait until the applicable time has elapsed but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. Less than (site-specific bus voltage indication) on all (site-specific Vital DC busses) for 15 minutes or longer.
ANO: SS4 Loss of all Vital DC power  15 minutes Operating Mode Applicability:          Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Emergency Action Level(s):
Note:     The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed but should declare the event as soon as it is determined that the condition has exceeded, or will likely, exceed the applicable time.
: 1.   < 105 volts on all Vital DC busses  15 minutes.
Deviations:
None.
Differences:
NEI 99-01 SS3 is renumbered to ANO SS4 for formatting purposes based on site preference for order of ICs alone.
to 0CAN121102 Page 105 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: SS6 Inability to Monitor a SIGNIFICANT TRANSIENT in Progress Operating Mode Applicability:                 Power Operation Startup Hot Standby Hot Shutdown Example Emergency Action Level:
Note:      The Emergency Director should not wait until the applicable time has elapsed but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. a. Loss of greater than approximately 75% of the following for 15 minutes or longer:
(Site-specific control room safety system annunciation)
OR (Site-specific control room safety system indication)
AND
: b. A SIGNIFICANT TRANSIENT is in progress.
AND
: c. Compensatory indications are unavailable.
to 0CAN121102 Page 106 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: SS6 Inability to monitor a SIGNIFICANT TRANSIENT in progress Operating Mode Applicability:          Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Emergency Action Level(s):
Note:      The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. a. Loss of > approximately 75% of the following  15 minutes:
Control Room annunciators associated with safety systems OR Control Room safety system indication AND
: b. A SIGNIFICANT TRANSIENT is in progress.
AND
: c. Compensatory indications are unavailable.
Deviations:
None.
Differences:
Additional information is provided in the bases with the term SPDS to define computer based information.
Additional information is provided in the bases to define those systems associated with safety system indication.
to 0CAN121102 Page 107 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: SG1 Prolonged loss of all Off-site and all On-Site AC power to emergency busses Operating Mode Applicability:               Power Operation Startup Hot Standby Hot Shutdown Example Emergency Action Level:
: 1. a. Loss of all off-site and all on-site AC power to (site-specific emergency busses).
AND
: b. EITHER of the following:
Restoration of at least one emergency bus in less than (site-specific hours) is not likely.
(Site-specific indication of continuing degradation of core cooling based on Fission Product Barrier monitoring.)
to 0CAN121102 Page 108 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: SG1 Prolonged loss of all offsite and all onsite AC power to Vital 4.16 KV busses Operating Mode Applicability:           Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Emergency Action Level(s):
: 1. a. Loss of all offsite and all onsite AC power to Vital 4.16 KV busses.
AND
: b. Either of the following:
Restoration of at least one Vital 4.16 KV bus in < 4 hours is not likely OR Continuing degradation of core cooling based on Fission Product Barrier monitoring as indicated by CETs  700 &deg;F.
Deviations:
None.
Differences:
The site-specific term Vital 4.16 KV is used in the IC and EAL to define emergency busses.
An or is used in the EAL for clarity.
to 0CAN121102 Page 109 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document NEI 99-01: SG2 Automatic Scram (Trip) and all manual actions fail to shutdown the reactor and indication of an extreme challenge to the ability to cool the core exists.
Operating Mode Applicability:               Power Operation Startup Example Emergency Action Level:
: 1. a. An automatic scram (trip) failed to shutdown the reactor.
AND
: b. All manual actions do not shutdown the reactor as indicated by (site-specific indications of reactor not shutdown).
AND
: c. EITHER of the following exist or have occurred due to continued power generation:
(Site-specific indication that core cooling is extremely challenged.)
(Site-specific indication that heat removal is extremely challenged.)
to 0CAN121102 Page 110 of 110 NEI 99-01 Revision 5 EAL Deviation-Differences Document ANO: SG3 Automatic trip and all manual actions fail to shutdown the reactor and indication of an extreme challenge to the ability to cool the core exists.
Operating Mode Applicability:          Power Operations (Mode 1)
Startup (Mode 2)
Emergency Action Level(s):
: 1. a. An automatic trip failed to shutdown the reactor.
AND
: b. All manual actions do not shutdown the reactor as indicated by reactor power  5%.
AND
: c. Either of the following exist or have occurred due to continued power generation:
CET temperatures at or approaching 1200 &deg;F OR Feedwater flow rate less than:
Unit 1: 430 gpm Unit 2: 485 gpm Deviations:
None.
Differences:
SG2 is renumbered to ANO IC SG3 for formatting purposes based on site preference for order of ICs alone.
An or is used in the EAL for clarity.

Attachment 2 to 0CAN121102 Proposed Technical Basis Document (Markup) to 0CAN121102 Page 1 of 112 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AU1 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT Any release of gaseous or liquid radioactivity to the environment greater than > 2 times the Radiological Effluent Technical Specifications/ODCM limits for > 60 minutes or longer.
Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2 or 3or 4 or 5)
Note: The SM Emergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the release duration has exceeded, or will likely exceed, the applicable time. In the absence of data to the contrary, assume that the release duration has exceeded the applicable time if an ongoing release is detected and the release start time is unknown.
: 1. VALID reading on Channel 7 on ANYany of the following radiation monitors > greater than the reading shown for > 60 minutes or longer:
(site specific monitor list and threshold values)
MONITORS - UNIT 1                       LIMIT RX-9820           Containment Purge                       5.90E-2 &#xb5;Ci/cc RX-9825           Radwaste Area                           5.36E-2 &#xb5;Ci/cc RX-9830           Fuel Handling Area                      4.54E-2 &#xb5;Ci/cc RX-9835           Emergency Penetration Room              9.56E-1 &#xb5;Ci/cc MONITORS - UNIT 2                       LIMIT 2RX-9820          Containment Purge                       4.46E-2 &#xb5;Ci/cc 2RX-9825          Radwaste Area                           3.32E-2 &#xb5;Ci/cc 2RX-9830          Fuel Handling Area                      4.46E-2 &#xb5;Ci/cc 2RX-9835          Emergency Penetration Room              8.84E-1 &#xb5;Ci/cc 2RX-9840          Post Accident Sampling Building         4.42E-1 &#xb5;Ci/cc 2RX-9845          Aux. Building Extension                 1.26E-1 &#xb5;Ci/cc 2RX-9850          Low Level Radwaste Storage Bldg.        1.77E-1 &#xb5;Ci/cc OR to 0CAN121102 Page 2 of 112 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AU1
: 2. VALID reading on any of the following radiation monitors effluent monitor reading> greater than 2 times the alarm setpoint established by a current release radioactivity discharge permit for > 60 minutes or longer.
EFFLUENT MONITORS - Unit 1 RX-9820          Containment Purge (Channel 7 or 9)
RE-4830          Waste Gas Radiation Monitor RE-4642          Liquid Radwaste Monitor EFFLUENT MONITORS - Unit 2 2RX-9820         Containment Purge (Channel 7 or 9) 2RE-2429         Waste Gas Decay Tank Vent Line Radiation Monitor 2RE-2330         BMS Liquid Discharge Monitor 2RE-4423         Regenerative Waste Discharge Monitor 2RE-4425         SG Blowdown to Flume Radiation Monitor OR
: 3. Confirmed grab sample analyses for gaseous or liquid releases indicates concentrations or release rates > greater than 2 times the applicable values of the ODCM (site specific RETS values) for > 60 minutes or longer.
OR
: 4. VALID reading on perimeter radiation monitoring system reading greater than 0.10 mR/hr above normal* background for 60 minutes or longer. [for sites having telemetered perimeter monitors]
45VALID indication on automatic real-time dose assessment capability indicating greater than (site specific value) for 60 minutes or longer. [for sites having such capability]*Normal can be considered as the highest reading in the past twenty-four hours excluding the current peak value. Basis:
[Refer to Appendix A for a detailed basis of the radiological effluent IC/EALs.] The SM Emergency Directorshould not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
This IC addresses a potential reductiondecrease in the level of safety of the plant as indicated by a radiological release that exceeds regulatory commitments for an extended period of time.
ANO Nuclear power plants incorporates features intended to control the release of radioactive effluents to the environment. Further, there are administrative controls established to prevent unintentional releases, or control and monitor intentional releases. [These controls are located to 0CAN121102 Page 3 of 112 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AU1 in the Off-site Dose Calculation Manual (ODCM), and for plants that have not implemented Generic Letter 89-01, in the Radiological Effluent Technical Specifications (RETS).] The occurrence of extended, uncontrolled radioactive releases to the environment is indicative of a degradation in these features and/or controls.
[Some sites may find it advantageous to address gaseous and liquid releases with separate EALs.]The ODCM RETS multiples are specified in AU1 and AA1 only to distinguish between non-emergency conditions, and from each other. While these multiples obviously correspond to an offsite dose or dose rate, the emphasis in classifying these events is the degradation in the level of safety of the plant, NOTnot the magnitude of the associated dose or dose rate.
[Releases should not be prorated or averaged over 60 minutes. For example, a release exceeding 4 times xODCM limits for 30 minutes does not meet the threshold for this IC.]
This Initiating ConditionEAL includes any release for which a radioactivity discharge permit was not prepared, or a release that exceeds the conditions (e.g., minimum dilution flow, maximum discharge flow, alarm setpoints, etc.) on the applicable permit.
EAL #1 This EAL addresses radioactivity releases, that for whatever reason, cause effluent radiation monitor readings to exceed the threshold identified in the EAL.
This EAL is intended for sites that have established effluent monitoring on non-routine release pathways for which a discharge permit would not normally be prepared.
[The ODCM establishes a methodology for determining effluent radiation monitor setpoints. The ODCM specifies default source terms and, for gaseous releases, prescribes the use of pre-determined annual average meteorology in the most limiting downwind sector for showing compliance with the regulatory commitments. This EAL should be determined using this methodology.]
EAL #2 This EAL addresses radioactivity releases, that for whatever reason, cause effluent radiation monitor readings to exceed the threshold identified in this the Initiating Condition established by the release radioactivity discharge permit. This value may be associated with a planned batch release, or a continuous release path.
[In either case, the value is established by the ODCM to warn of a release that is not in compliance with the RETS. Indexing the EAL to the ODCM setpoints in this manner insures that the EAL will never be less than the setpoint established by a specific discharge permit.]
to 0CAN121102 Page 4 of 112 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AU1 EAL #3 This EAL addresses uncontrolled releases that are detected by sample analyses, particularly on unmonitored pathways, e.g., spills of radioactive liquids into storm drains, heat exchanger leakage in river water systems, lake, etc.
EALs #4 and #5 The 0.10 mR/hr value in EAL #4, and the site specific value for EAL #5,is based on a release rate not exceeding 500 mrem per year.
[As provided in the ODCM / RETS, prorated over 8766 hours, multiplied by two, and rounded.
(500 &#xf7; 8766 x 2 = 0.114).] EAL #1 and #2 directly correlate with the IC since annual average meteorology is required to be used in showing compliance with the ODCM and is used in calculating the alarm setpoints. EALs #4 and #5 isare a function of actual meteorology, which will likely be different from the limiting annual average value. Thus, there will likely be a numerical inconsistency.
The underlying basis of this EAL involves the degradation in the level of safety of the plant implied by the uncontrolled release. Exceeding EAL #4 or #5 is an indication of an uncontrolled release.
Reference Documents:
: 1. 1604.051, Eberline Radiation Monitor System
: 2. Offsite Dose Calculation Manual to 0CAN121102 Page 5 of 112 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AU2 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT UNPLANNED rise in plant radiation levels Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2)
: 1. a. UNPLANNED lowering of water level drop in the a reactorrefueling canal or spent fuel pool pathway as indicated by (site specific level or indication):
Personnel observation, refueling crew report, indication on area security camera, borated water source (BWST or RWT) level drop due to makeup demands.
AND
: b. VALID Area Radiation Monitor reading rise on any of the following: (site specific list).
Unit 1 RE-8009                  Spent Fuel Area RE-8017                  Fuel Handling Area Unit 2 2RE-8914                 Spent Fuel Area 2RE-8915                 Spent Fuel Area 2RE-8916                 Spent Fuel Area 2RE-8912                 Containment Incore Instrumentation OR
: 2. UNPLANNED VALID Area Radiation Monitor readings or survey results indicate a rise by a factor of 1000 over normal* levels.
NOTE: For area radiation monitors with ranges incapable of measuring 1000 times normal*
levels, classification shall be based on VALID full scale indication unless surveys confirm that area radiation levels are below 1000 times normal* within 15 minutes of the Area Radiation Monitor indications going to full scale indication.
     *Normal can be considered as the highest reading in the past twenty-four hours excluding the current peak value.
Basis:
This IC addresses elevatincreased radiation levels as a result of lowered water level dropecreases above irradiated fuel or events that have resulted, or may result, in UNPLANNED risincreases in radiation dose rates within plant buildings. These radiation riincreases represent a loss of control over radioactive material and represent a potential degradation in the level of safety of the plant.
to 0CAN121102 Page 6 of 112 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AU2 EAL #1
[Site specific indications may include instrumentation such as water level and local area radiation monitors, and personnel (e.g., refueling crew) reports. If available, video cameras may allow remote observation. Depending on available level instrumentation, the declaration threshold may need to be based on indications of water makeup rate or decrease in water storage tank level.]
[In light of Reactor Cavity Seal failure incidents at two different PWRs and loss of water in the Spent Fuel Pit/Fuel Transfer Canal at a BWR, explicit coverage of these types of events via threshold #1 is appropriate given their potential for increased doses to plant staff.]
The refueling pathway is a site specific combination of cavities, tubes, canals and pools. While a radiation monitor could detect a risen increase in dose rate due to a drop in the water level, it might not be a reliable indication of whether or not the fuel is covered.
[For example, a refueling bridge ARM reading may rise due to planned evolutions such as head lift, or even a fuel assembly being raised in the manipulator mast. Also, a monitor could in fact be properly responding to a known event involving transfer or relocation of a source, stored in or near the fuel pool or responding to a planned evolution such as removal of the reactor head.
Generally, elevated radiation monitor indications will need to be combined with another indicator (or personnel report) of water loss.]
[Application of this EAL requires understanding of the actual radiological conditions present in the vicinity of the monitor. Information Notice No. 90-08, "KR-85 Hazards from Decayed Fuel" should be considered in establishing radiation monitor EALs.]
For refueling events where the water level drops below the RPV flange classification would be via CU2. This event escalates to an Alert per AA2 if irradiated fuel outside the reactor vessel is uncovered. For events involving irradiated fuel in the reactor vessel, escalation would be via the Fission Product Barrier MatrixTable for events in operating modes 1-4.
EAL #2 This EAL addresses risincreases in plant radiation levels that represent a loss of control of radioactive material resulting in a potential degradation in the level of safety of the plant.
This EAL excludes radiation level risincreases that result from planned activities such as use of radiographic sources and movement of radioactive waste materials. A specific list of ARMs is not required as it would restrict the applicability of the Threshold. The intent is to identify loss of control of radioactive material in any monitored area.
to 0CAN121102 Page 7 of 112 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AA1 Initiating Condition - ALERT Any release of gaseous or liquid radioactivity to the environment > greater than200 times the Radiological Effluent Technical Specifications/ODCM limits for
> 15 minutes or longer.
Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2 or 3 or 4 or 5)
Note: The SM / TSC Director / EOF Director Emergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the release duration has exceeded, or will likely exceed, the applicable time. In the absence of data to the contrary, assume that the release duration has exceeded the applicable time if an ongoing release is detected and the release start time is unknown.
: 1. VALID reading on Channel 7 on any ANY of the following radiation monitors >greater than the reading shown for > 15 minutes or longer:
(site specific monitor list and threshold values)
MONITORS - UNIT 1                      LIMIT RX-9820              Containment Purge                        5.90E0 &#xb5;Ci/cc RX-9825              Radwaste Area                            5.36E0 &#xb5;Ci/cc RX-9830              Fuel Handling Area                       4.54E0 &#xb5;Ci/cc RX-9835              Emergency Penetration Room               9.56E+1 &#xb5;Ci/cc MONITORS - UNIT 2                         LIMIT 2RX-9820             Containment Purge                        4.46E0 &#xb5;Ci/cc 2RX-9825             Radwaste Area                            3.32E0 &#xb5;Ci/cc 2RX-9830             Fuel Handling Area                       4.46E0 &#xb5;Ci/cc 2RX-9835             Emergency Penetration Room               8.84E+1 &#xb5;Ci/cc 2RX-9840             Post Accident Sampling Building          4.42E+1 &#xb5;Ci/cc 2RX-9845             Aux. Building Extension                  1.26E+1 &#xb5;Ci/cc 2RX-9850             Low Level Radwaste Storage Bldg.         1.77E+1 &#xb5;Ci/cc OR to 0CAN121102 Page 8 of 112 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AA1
: 2. EITHER VALID reading on any of the following radiation monitors effluent monitor>reading greater than 200 times the alarm setpoint established by a current release radioactivity discharge permit for > 15 minutes or longer OR VALID reading greater than the value listed for
> 15 minutes.
MONITORS - UNIT 1                      LIMIT RX-9820        Containment Purge (Channel 7 or 9)         N/A RE-4830        Waste Gas Radiation Monitor                9.5E7 cpm RE-4642        Liquid Radwaste Monitor                    9.5E7 cpm MONITORS - UNIT 2                       LIMIT 2RX-9820       Containment Purge (Channel 7 or 9)         N/A 2RE-2429       Waste Gas Monitoring System                9.5E5 cpm 2RE-2330       BMS Liquid Discharge Monitor               9.5E5 cpm 2RE-4423       Regenerative Waste Discharge Monitor       9.5E5 cpm 2RE-4425       SG Blowdown to Flume Radiation Monitor     9.5E5 cpm OR
: 3. Confirmed grab sample analyses for gaseous or liquid releases indicates concentrations or release rates > greater than 200 times the applicable values of the ODCM (site specific RETS values) for > 15 minutes or longer.
OR
: 4. VALID reading on perimeter radiation monitoring system reading greater than 10.0 mR/hr above normal* background for 15 minutes or longer. [for sites having telemetered perimeter monitors]
45VALID indication on automatic real-time dose assessment capability indicating greater than (site specific value) for 15 minutes or longer. [for sites having such capability]*Normal can be considered as the highest reading in the past twenty-four hours excluding the current peak value.
[Refer to Appendix A for a detailed basis of the radiological effluent IC/EALs.] Basis:
The SM / TSC Director / EOF Director Emergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
This IC addresses an actual or substantial potential reductiondecrease in the level of safety of the plant as indicated by a radiological release that exceeds regulatory commitments for an extended period of time. ANONuclear power plants incorporates features intended to control the release of radioactive effluents to the environment. Further, there are administrative controls established to prevent unintentional releases, or control and monitor intentional releases.
[These controls are located in the Off-site Dose Calculation Manual (ODCM), and for plants that have not implemented Generic Letter 89-01, in the Radiological Effluent Technical Specifications (RETS).] The occurrence of extended, uncontrolled radioactive releases to the environment is indicative of a degradation in these features and/or controls. [Some sites may find it advantageous to address gaseous and liquid releases with separate EALs.]
to 0CAN121102 Page 9 of 112 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AA1 The ODCM RETS multiples are specified in AU1 and AA1 only to distinguish between non-emergency conditions, and from each other. While these multiples obviously correspond to an offsite dose or dose rate, the emphasis in classifying these events is the degradation in the level of safety of the plant, NOTnot the magnitude of the associated dose or dose rate.
[To ensure a realistic near-linear escalation path, a value should be selected roughly half-way between the AU1 value and the value calculated for AS1 value. The value will be based on radiation monitor readings to exceed 200 times the Technical Specification limit and releases are not terminated within 15 minutes. The ODCM establishes a methodology for determining effluent radiation monitor setpoints. The ODCM specifies default source terms and, for gaseous releases, prescribes the use of pre-determined annual average meteorology in the most limiting downwind sector for showing compliance with the regulatory commitments. This EAL can be determined using this methodology if appropriate.]
[Releases should not be prorated or averaged. For example, a release exceeding 600 times ODCM limits for 5 minutes does not meet the threshold for this IC.]
This Initiating ConditionEAL includes any release for which a release radioactivity discharge permit was not prepared, or a release that exceeds the conditions (e.g., minimum dilution flow, maximum discharge flow, alarm setpoints, etc.) on the applicable permit.
EAL #1 This EAL addresses radioactivity releases, that for whatever reason, cause effluent radiation monitor readings to exceed the threshold identified in the Initiating ConditionIC.
This EAL is intended for sites that have established effluent monitoring on non-routine release pathways for which a discharge permit would not normally be prepared.
[The ODCM establishes a methodology for determining effluent radiation monitor setpoints. The ODCM specifies default source terms and, for gaseous releases, prescribes the use of pre-determined annual average meteorology in the most limiting downwind sector for showing compliance with the regulatory commitments. This EAL should be determined using this methodology.]
EAL #2 This EAL addresses radioactivity releases, that for whatever reason, cause effluent radiation monitor readings to exceed the threshold identified in thise Initiating Condition established by the radioactivity discharge permit. This value may be associated with a planned batch release, or a continuous release path. The limit values provided are for those cases in which the maximum monitor range is less than the release permit value multiplied by 200.
[In either case, the value is established by the ODCM to warn of a release that is not in compliance with the RETS. Indexing the EAL to the ODCM setpoints in this manner insures that the EAL will never be less than the setpoint established by a specific discharge permit.]
to 0CAN121102 Page 10 of 112 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AA1 EAL #3 This EAL addresses uncontrolled releases that are detected by sample analyses, particularly on unmonitored pathways, e.g., spills of radioactive liquids into storm drains, heat exchanger leakage in river water systems, lake, etc.
EALs #4 and #5 The 10.0 mR/hr value in EAL #4 , and the site specific value for EAL #5,is based on a release rate not exceeding 500 mrem per year.
[As provided in the ODCM / RETS, prorated over 8766 hours, multiplied by 200, and rounded.
(500 &#xf7; 8766 x 200 = 11.4)].
EAL #1 and #2 directly correlate with the IC since annual average meteorology is required to be used in showing compliance with the ODCM and is used in calculating the alarm setpoints.
EALs #4 and #5 isare a function of actual meteorology, which will likely be different from the limiting annual average value. Thus, there will likely be a numerical inconsistency.
The underlying basis of this EAL involves the degradation in the level of safety of the plant implied by the uncontrolled release. Exceeding EAL #4 or #5 is an indication of an uncontrolled release.
The underlying basis of this EAL involves the degradation in the level of safety of the plant implied by the uncontrolled release. Exceeding EAL #4 or #5 is an indication of an uncontrolled release.
Reference Documents:
: 1. 1604.051, Eberline Radiation Monitor System
: 2. Offsite Dose Calculation Manual to 0CAN121102 Page 11 of 112 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AA2 Initiating Condition - ALERT Damage to irradiated fuel or loss of water level that has resulted or will result in the uncovering of irradiated fuel outside the reactor vessel Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2)
: 1. A water level drop in the reactor refueling canalcavity, or spent fuel pool or fuel transfer canal that will result in irradiated fuel becoming uncovered.
OR
: 2. A VALID alarm or (site specific elevated reading) on ANYany of the following radiation monitors due to damage to irradiated fuel or loss of water level.
(site specific radiation monitors)
Unit 1 RX-9820                Containment Purge (Channel 7 or 9)
RX-9825                Radwaste Area (Channel 7 or 9)
RX-9830                Fuel Handling Area (Channel 7 or 9)
RE-8060                Containment High Range Radiation Monitors RE-8061                Containment High Range Radiation Monitors RE-8009                Spent Fuel Area RE-8017                Fuel Handling Unit 2 2RX-9820               Containment Purge (Channel 7 or 9) 2RX-9825               Radwaste Area (Channel 7 or 9) 2RX-9830               Fuel Handling Area (Channel 7 or 9) 2RE-8905               Containment Equipment Hatch Area 2RE-8909               Containment Personnel Access Area 2RE-8925-1             Containment High Range Radiation Monitors 2RE-8925-2             Containment High Range Radiation Monitors 2RE-8914               Spent Fuel Area 2RE-8915               Spent Fuel Area 2RE-8916               Spent Fuel Area 2RE-8912               Containment Incore Inst.
Basis:
This IC addresses risincreases in radiation dose rates within plant buildings, and may be a precursor to a radioactivity release to the environment. These events represent a loss of control over radioactive material and represent an actual or substantial potential degradation in the level of safety of the plant.
to 0CAN121102 Page 12 of 112 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AA2
[These events escalate from AU2 in that fuel activity has been released, or is anticipated due to fuel heatup. This IC applies to spent fuel requiring water coverage and is not intended to address spent fuel which is licensed for dry storage. ]
EAL #1
[Indications may include instrumentation such as water level and local area radiation monitors, and personnel (e.g., refueling crew) reports. Depending on available level indication, the declaration may be based on indications of water makeup rate or drop in applicable borated water storage tank level. Video cameras (Security or outage-related) may allow remote observation of level.]
[In light of Reactor Cavity Seal failure incidents at two different PWRs and loss of water in the Spent Fuel Pit/Fuel Transfer Canal at a BWR, explicit coverage of these types of events via threshold #1 is appropriate given their potential for increased doses to plant staff.]
EAL #2 This EAL addresses radiation monitor indications of fuel uncovery and/or fuel damage.
ElevatIncreased ventilation monitor readings may be indication of a radioactivity release from the fuel, confirming that damage has occurred. ElevatIncreased background at the ventilation monitor due to water level dropdecrease may mask elevatincreased ventilation exhaust airborne activity and needs to be considered.
While a radiation monitor could detect a risen increase in dose rate due to a drop in the water level, it might not be a reliable indication of whether or not the fuel is covered.
[For example, a refueling bridge ARM reading may rise due to planned evolutions such as head lift, or even a fuel assembly being raised in the manipulator mast. Also, a monitor could in fact be properly responding to a known event involving transfer or relocation of a source, stored in or near the fuel pool or responding to a planned evolution such as removal of the reactor head.
Generally, elevated radiation monitor indications will need to be combined with another indicator (or personnel report) of water loss.]
[Application of this EAL requires understanding of the actual radiological conditions present in the vicinity of the monitor. Information Notice No. 90-08, "KR-85 Hazards from Decayed Fuel" should be considered in establishing radiation monitor EALs.]
Escalation of this emergency classification level, if appropriate, would be based on AS1 or AG1.
to 0CAN121102 Page 13 of 112 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AA3 Initiating Condition - ALERT Rise in radiation levels within the facility that impedes operation of systems required to maintain plant safety functions Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2)
Dose rate >greater than 15 mR/hr in ANYany of the following areas requiring continuous occupancy to maintain plant safety functions:
(site specific area list)
Unit 1 Control Room Unit 2 Control Room Central Alarm Station Basis:
This IC addresses elevatincreased radiation levels that impact continued operation in areas requiring continuous occupancy to maintain safe operation or to perform a safe shutdown.
The cause and/or magnitude of the riseincrease in radiation levels is not a concern of this IC.
The SM/TSC Director/EOF DirectorEmergency Director must consider the source or cause of the elevatincreased radiation levels and determine if any other IC may be involved.
[At multiple-unit sites, the EALs could result in declaration of an Alert at one unit due to a radioactivity release or radiation shine resulting from a major accident at the other unit. This is appropriate if the increase impairs operations at the operating unit.]
[This IC is not meant to apply to rises in the containment dome radiation monitors as these are events which are addressed in the fission product barrier matrix EALs.]
[The value of 15mR/hr is derived from the GDC 19 value of 5 rem in 30 days with adjustment for expected occupancy times. Although Section III.D.3 of NUREG-0737, "Clarification of TMI Action Plan Requirements", provides that the 15 mR/hr value can be averaged over the 30 days, the value is used here without averaging, as a 30 day duration implies an event potentially more significant than an Alert.]
Areas requiring continuous occupancy include the Ccontrol Rrooms and the Central Alarm Station. and, as appropriate to the site, any other control stations that are staffed continuously, such as a radwaste control room, or a security alarm station. [Typically these areas are the Control Room and the Central Alarm Station (CAS).]
to 0CAN121102 Page 14 of 112 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AS1 Initiating Condition -- SITE AREA EMERGENCY Offsite dose resulting from an actual or IMMINENT release of gaseous radioactivity
 > greater than 100 mRrem TEDE or 500 mRrem child tThyroid CDE for the actual or projected duration of the release Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2 or 3or 4)
Note: The SM/TSC Director/EOF Director Emergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time. If dose assessment results are available, the classification declaration should be based on EAL #2 dose assessment instead of EAL #1radiation monitor values. Do not delay declaration awaiting dose assessment results.
: 1. VALID reading on Channel 9 on anyANY of the following radiation monitors > greater than the reading shown for > 15 minutes or longer:
(site specific monitor list and threshold values)
MONITORS - UNIT 1                         LIMIT RX-9820           Containment Purge                           5.90E+1 &#xb5;Ci/cc RX-9825           Radwaste Area                               5.36E+1 &#xb5;Ci/cc RX-9830           Fuel Handling Area                          4.54E+1 &#xb5;Ci/cc RX-9835           Emergency Penetration Room                  9.56E+2 &#xb5;Ci/cc MONITORS - UNIT 2                         LIMIT 2RX-9820          Containment Purge                           4.46E+1 &#xb5;Ci/cc 2RX-9825          Radwaste Area                               3.32E+1 &#xb5;Ci/cc 2RX-9830          Fuel Handling Area                          4.46E+1 &#xb5;Ci/cc 2RX-9835          Emergency Penetration Room                  8.84E+2 &#xb5;Ci/cc 2RX-9840          Post Accident Sampling Building             4.42E+2 &#xb5;Ci/cc 2RX-9845          Aux. Building Extension                     1.26E+2 &#xb5;Ci/cc 2RX-9850          Low Level Radwaste Storage Bldg.            1.77E+2 &#xb5;Ci/cc OR
: 2. Dose assessment using actual meteorology indicates doses > greater than100 mRrem TEDE or 500 mRrem child thyroid CDE at or beyond the site boundary.
: 3. VALID perimeter radiation monitoring system reading greater than 100 mR/hr for 15 minutes or longer. [for sites having telemetered perimeter monitors]
to 0CAN121102 Page 15 of 112 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AS1 OR
: 34. Field survey results indicate closed window dose rates > greater than100 mR/hr expected to continue for > 60 minutes or longer; or analyses of field survey samples indicate child thyroid CDE > greater than 500 mRrem for one hour of inhalation, at or beyond the site boundary.
Basis:
[Refer to Appendix A for a detailed basis of the radiological effluent IC/EALs.]
This IC addresses radioactivity releases that result in doses at or beyond the site boundary that exceed 10% of the EPA Protective Action Guides (PAGs). Releases of this magnitude are associated with the failure of plant systems needed for the protection of the public.
[While these failures are addressed by other ICs, this IC provides appropriate diversity and addresses events which may not be able to be classified on the basis of plant status alone. It is important to note that for the more severe accidents the release may be unmonitored or there may be large uncertainties associated with the source term and/or meteorology.]
[The EPA PAGs are expressed in terms of the sum of the effective dose equivalent (EDE) and the committed effective dose equivalent (CEDE), or as the thyroid committed dose equivalent (CDE). For the purpose of these IC/EALs, the dose quantity total effective dose equivalent (TEDE), as defined in 10 CFR 20, is used in lieu of sum of EDE and CEDE. The EPA PAG guidance provides for the use adult thyroid dose conversion factors. However, some states have decided to calculate child thyroid CDE. Utility IC/EALs need to be consistent with those of the states involved in the facilitys emergency planning zone.]
[The TEDE dose is set at 10% of the EPA PAG, while the 500 mrem thyroid CDE was established in consideration of the 1:5 ratio of the EPA PAG for TEDE and thyroid CDE.]
EAL #1 The site specific monitor list in EAL #1 should includes effluent monitors on all potential release pathways (plant stack, primary-secondary leak, fuel handling accident).
[The monitor reading EALs should be determined using a dose assessment method that back calculates from the dose values specified in the IC. Since doses are generally not monitored in real-time, it is suggested that a release duration of one hour be assumed, and that the EALs be based on a site specific boundary (or beyond) dose of 100 mrem whole body or 500 mrem thyroid in one hour, whichever is more limiting (as was done for EALs #2 and #4). If individual site analyses indicate a longer or shorter duration for the period in which the substantial portion of the activity is released, the longer duration should be used.]
[The meteorology used should be the same as those used for determining AU1 and AA1 monitor reading EALs. The same source term (noble gases, particulates, and halogens) may also be used as long as it maintains a realistic and near linear escalation between the EALs for the four classifications. If proper escalations do not result from the use of the same source term, if the calculated values are unrealistically high, or if correlation between the values and to 0CAN121102 Page 16 of 112 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AS1 dose assessment values does not exist, then consider using an accident source term for AS1 and AG1 calculations.]
EAL #2 Since dose assessment in EAL #2 is based on actual meteorology, whereas the monitor readings in EAL #1 areis not, the results from these assessments may indicate that the classification is not warranted, or may indicate that a higher classification is warranted. For this reason, emergency implementing procedures should call for the timely performance of dose assessments using actual meteorology and release information. If the results of these dose assessments are available when the classification is made (e.g., initiated at a lower classification level), the dose assessment results override the monitor reading EALs.
EAL #3 Field team surveys in EAL #3 should be performed at or beyond the SITE BOUNDARY and at the most accurate indicator of the condition. Field data are independent of release elevation and meteorology. The assumed release duration is one hour. Expected post accident source terms would be dominated by noble gases providing the dose rate value. Sampling of radioiodine by adsorption on a charcoal cartridge should determine the iodine value.
Reference Documents:
: 1. 1604.051, Eberline Radiation Monitor System
: 2. Offsite Dose Calculation Manual to 0CAN121102 Page 17 of 112 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AG1 Initiating Condition -- GENERAL EMERGENCY Offsite dose resulting from an actual or IMMINENT release of gaseous radioactivity > greater than 1000 mRrem TEDE or 5000 mRrem child tThyroid CDE for the actual or projected duration of the release using actual meteorology Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2 or 3 or 4)
Note: The SM/TSC Director/EOF Director Emergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time. If dose assessment results are available, the classification declaration should be based on EAL #2 dose assessment instead of EAL #1 radiation monitor values. Do not delay declaration awaiting dose assessment results.
: 1. VALID reading on Channel 9 on anyANY of the following radiation monitors > greater than the reading shown for > 15 minutes or longer:
(site specific monitor list and threshold values)
MONITORS - UNIT 1                      LIMIT RX-9820          Containment Purge                         5.90E+2 (Ci/cc)
RX-9825          Radwaste Area                             5.36E+2 (Ci/cc)
RX-9830          Fuel Handling Area                        4.54E+2 (Ci/cc)
RX-9835          Emergency Penetration Room                9.56E+3 (Ci/cc)
MONITORS - UNIT 2                      LIMIT 2RX-9820         Containment Purge                         4.46E+2 (Ci/cc) 2RX-9825         Radwaste Area                             3.32E+2 (Ci/cc) 2RX-9830         Fuel Handling Area                        4.46E+2 (Ci/cc) 2RX-9835         Emergency Penetration Room                8.84E+3 (Ci/cc) 2RX-9840         Post Accident Sampling Building           4.42E+3 (Ci/cc) 2RX-9845         Aux. Building Extension                   1.26E+3 (Ci/cc) 2RX-9850         Low Level Radwaste Storage Building       1.77E+3 (Ci/cc)
OR
: 2. Dose assessment using actual meteorology indicates doses > greater than 1000 mRrem TEDE or 5000 mRrem child thyroid CDE at or beyond the site boundary.
: 3. VALID perimeter radiation monitoring system reading greater than 1000 mR/hr for 15 minutes or longer. [for sites having telemetered perimeter monitors]
OR to 0CAN121102 Page 18 of 112 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AG1
: 34. Field survey results indicate closed window dose rates > greater than1000 mR/hr expected to continue for > 60 minutes or longer; or analyses of field survey samples indicate child thyroid CDE > greater than 5000 mRrem for one hour of inhalation, at or beyond the site boundary.
Basis:
[Refer to Appendix A for a detailed basis of the radiological effluent IC/EALs.]
This IC addresses radioactivity releases that result in doses at or beyond the site boundary that exceed the EPA Protective Action Guides (PAGs). Public protective actions will be necessary.
Releases of this magnitude are associated with the failure of plant systems needed for the protection of the public and likely involve fuel damage.
[While these failures are addressed by other ICs, this IC provides appropriate diversity and addresses events which may not be able to be classified on the basis of plant status alone. It is important to note that for the more severe accidents the release may be unmonitored or there may be large uncertainties associated with the source term and/or meteorology.]
[The EPA PAGs are expressed in terms of the sum of the effective dose equivalent (EDE) and the committed effective dose equivalent (CEDE), or as the thyroid committed dose equivalent (CDE). For the purpose of these IC/EALs, the dose quantity total effective dose equivalent (TEDE), as defined in 10 CFR 20, is used in lieu of sum of EDE and CEDE. The EPA PAG guidance provides for the use adult thyroid dose conversion factors. However, some states have decided to calculate child thyroid CDE. Utility IC/EALs need to be consistent with those of the states involved in the facilities emergency planning zone.]
[The TEDE dose is set at the EPA PAG, while the 5000 mrem thyroid CDE was established in consideration of the 1:5 ratio of the EPA PAG for TEDE and thyroid CDE.]
EAL #1 The site specific monitor list in EAL #1 should includes effluent monitors on all potential release pathways (plant stack, primary-secondary leak, fuel handling accident).
[The monitor reading EALs should be determined using a dose assessment method that back calculates from the dose values specified in the IC. Since doses are generally not monitored in real-time, it is suggested that a release duration of one hour be assumed, and that the EALs be based on a site specific boundary (or beyond) dose of 1000 mrem whole body or 5000 mrem thyroid in one hour, whichever is more limiting (as was done for EALs #2 and #4). If individual site analyses indicate a longer or shorter duration for the period in which the substantial portion of the activity is released, the longer duration should be used.]
[The meteorology used should be the same as those used for determining AU1 and AA1 monitor reading EALs. The same source term (noble gases, particulates, and halogens) may also be used as long as it maintains a realistic and near linear escalation between the EALs for the four classifications. If proper escalations do not result from the use of the same source term, if the calculated values are unrealistically high, or if correlation between the values and to 0CAN121102 Page 19 of 112 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AG1 dose assessment values does not exist, then consider using an accident source term for AS1 and AG1 calculations.]
EAL #2 Since dose assessment in EAL #2 is based on actual meteorology, whereas the monitor readings in EAL #1 areis not, the results from these assessments may indicate that the classification is not warranted, or may indicate that a higher classification is warranted. For this reason, emergency implementing procedures should call for the timely performance of dose assessments using actual meteorology and release information. If the results of these dose assessments are available when the classification is made (e.g., initiated at a lower classification level), the dose assessment results override the monitor reading EALs.
EAL #3 Field team surveys in EAL #3 should be performed at or beyond the SITE BOUNDARY and at the most accurate indicator of the condition. Field data are independent of release elevation and meteorology. The assumed release duration is one hour. Expected post accident source terms would be dominated by noble gases providing the dose rate value. Sampling of radioiodine by adsorption on a charcoal cartridge should determine the iodine value.
Reference Documents:
: 1. 1604.051, Eberline Radiation Monitor System
: 2. Offsite Dose Calculation Manual to 0CAN121102 Page 20 of 112 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CU1 Initiating Condition -- NOTIFICATION OF UNUSUAL EVENT RCS leakage Operating Mode Applicability: Cold Shutdown (Mode 5)
Example Emergency Action Level(s):
Note: The SMEmergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. RCS leakage results in the inability to maintain or restore RPV level greater than (site specific low level RPS actuation setpoint) for 15 minutes or longer. [BWR]
: 1. RCS leakage results in the inability to maintain or restore level within Pressurizer or RCS level target band(site specific pressurizer or RCS/RPV level target band) for > 15 minutes or longer. [PWR]
Basis:
This IC is considered to be a potential degradation of the level of safety of the plant. The inability to maintain or restore level is indicative of loss of RCS inventory.
Relief valve normal operation should be excluded from this IC. However, a relief valve that operates and fails to close per design should be considered applicable to this IC if the relief valve cannot be isolated.
Prolonged loss of RCS Inventory may result in escalation to the Alert emergency classification level via either CA1 or CA34
[The difference between CU1 and CU2 deals with the RCS conditions that exist between cold shutdown and refueling modes. In the refueling mode the RCS is not intact and RPV level and inventory are monitored by different means. In cold shutdown the RCS will normally be intact and standard RCS inventory and level monitoring means are available.]
to 0CAN121102 Page 21 of 112 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CU2 Initiating Condition -- NOTIFICATION OF UNUSUAL EVENT UNPLANNED loss of RCS/reactor vesselRPV inventory Operating Mode Applicability: Refueling (Mode 6)
Example Emergency Action Level(s): (1 or 2)
Note: The SMEmergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. UNPLANNED RCS/reactor vessel RPV level drop as indicated by either of the following:
: a. RCS/reactor vesselRPV water level drop below the reactor vessel RPV flange for > 15 minutes or longer when the RCS/reactor vessel RPV level band is established above the reactor vesselRPV flange OR
: b. RCS/reactor vesselRPV water level drop below the RCS/reactor vessel level band for >
15 minutes or longer when the RCS/reactor vessel RPV level band is established below the reactor vesselRPV flange.
OR
: 2. RCS/reactor vesselRPV level cannot be monitored with a loss of RCS/reactor vessel RPV inventory as indicated by an unexplained level rise in (as applicable) the Reactor Building Sump, Reactor Drain Tank, Aux. Building Equipment Drain Tank, Aux. Building Sump, or Quench Tank(site specific sump or tank).
Basis:
This IC is a precursor of more serious conditions and considered to be a potential degradation of the level of safety of the plant.
Refueling evolutions that lowerdecrease RCS water level below the reactor vesselRPV flange are carefully planned and procedurally controlled. An UNPLANNED event that results in water level droppdecreasing below the reactor vessel RPV flange, or below the planned RCS water level for the given evolution (if the planned RCS water level is already below the reactor vessel RPV flange), warrants declaration of an NOUE due to the reduced RCS inventory that is available to keep the core covered.
The allowance of 15 minutes was chosen because it is reasonable to assume that level can be restored within this time frame using one or more of the redundant means of refill that should be available. If level cannot be restored in this time frame then it may indicate a more serious condition exists.
to 0CAN121102 Page 22 of 112 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CU2 Continued loss of RCS Inventory will result in escalation to the Alert emergency classification level via either CA1 or CA34.
[The difference between CU1 and CU2 deals with the RCS conditions that exist between cold shutdown and refueling modes. In cold shutdown the RCS will normally be intact and standard RCS inventory and level monitoring means are available. In the refueling mode the RCS is not intact and RPV level and inventory are monitored by different means].
EAL #1 This EAL involves a dropdecrease in RCS level below the top of the reactor vessel RPV flange that continues for 15 minutes due to an UNPLANNED event. This EAL is not applicable to dropdecreases in flooded reactor cavity level, which is addressed by AU2 EAL1, until such time as the level dropdecreases to the level of the vessel flange.
[For BWRs] if RPV level continues to decrease and reaches the Low-Low ECCS Actuation Setpoint then escalation to CA1 would be appropriate.
[For PWRs] If reactor vesselRPV level continues to dropdecrease and reaches the Bottom ID of the RCS Loop then escalation to CA1 would be appropriate.
EAL #2 This EAL addresses conditions in the refueling mode when normal means of core temperature indication and RCS level indication may not be available. Redundant means of reactor vesselRPV level indication will normally be installed (including the ability to monitor level visually) to assure that the ability to monitor level will not be interrupted. However, if all level indication were to be lost during a loss of RCS inventory event, the operators would need to determine that reactor vesselRPV inventory loss was occurring by observing sump and tank level changes. Sump and tank level risincreases must be evaluated against other potential sources of leakage such as cooling water sources inside the containment to ensure they are indicative of RCS leakage.
Escalation to the Alert emergency classification level would be via either CA1 or CA34.
to 0CAN121102 Page 23 of 112 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CU53 Initiating Condition -- NOTIFICATION OF UNUSUAL EVENT AC power capability to Vital 4.16 KVemergency busses reduced to a single power source > for 15 minutes or longer such that any additional single failure would result in station blackout Operating Mode Applicability:        Cold Shutdown (Mode 5)
Refueling (Mode 6)
Example Emergency Action Level(s):
Note: The SMEmergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. a. AC power capability to Vital 4.16 KV (site specific emergency busses) reduced to a single power source > for 15 minutes or longer.
AND
: b.       Any additional single power source failure will result in station blackout.
Basis:
The condition indicated by this IC is the degradation of the offsite and onsite AC power systems such that any additional single failure would result in a station blackout. This condition could occur due to a loss of offsite power with a concurrent failure of all but one emergency generator to supply power to its emergency busses. The subsequent loss of this single power source would escalate the event to an Alert in accordance with CA53.
Fifteen minutes was selected as a threshold to exclude transient or momentary losses of power.
The EAL allows credit for operation of the Alternate AC Diesel Generator.
[At multi-unit stations, the EALs should allow credit for operation of installed design features, such as cross-ties or swing diesels, provided that abnormal or emergency operating procedures address their use. However, these stations must also consider the impact of this condition on other shared safety functions in developing the site specific EAL.]
[Plants that have a proceduralized capability to cross-tie AC power from an off-site power supply of a companion unit may take credit for the redundant power source in the associated EAL for this IC.]
Reference Documents:
: 1. 1202.007, Degraded Power
: 2. 1202.008, Blackout
: 3. 2202.007, Loss of Off-Site Power
: 4. 2202.008, Station Blackout
: 5. 2104.037, Alternate AC Diesel Generator Operations to 0CAN121102 Page 24 of 112 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CU34 Initiating Condition -- NOTIFICATION OF UNUSUAL EVENT UNPLANNED loss of decay heat removal capability with irradiated fuel in the reactor vessel RPV.
Operating Mode Applicability:        Cold Shutdown (Mode 5)
Refueling (Mode 6)
Example Emergency Action Level(s): (1 or 2)
Note: The SMEmergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. UNPLANNED event results in RCS temperature exceeding 200 &deg;Fthe Technical Specification cold shutdown temperature limit.
OR
: 2. Loss of all RCS temperature and RCS/reactor vesselRPV level indication for > 15 minutes or longer.
Basis:
This IC is be a precursor of more serious conditions and, as a result, is considered to be a potential degradation of the level of safety of the plant. In cold shutdown the ability to remove decay heat relies primarily on forced cooling flow. Operation of the systems that provide this forced cooling may be jeopardized due to the unlikely loss of electrical power or RCS inventory.
Since the RCS usually remains intact in the cold shutdown mode a large inventory of water is available to keep the core covered.
[Entry into cold shutdown conditions may be attained within hours of operating at power. Entry into the refueling mode procedurally may not occur for typically 100 hours (site specific) or longer after the reactor has been shutdown. Thus the heatup threat and therefore the threat to damaging the fuel clad may be lower for events that occur in the refueling mode with irradiated fuel in the RPV (note that the heatup threat could be lower for cold shutdown conditions if the entry into cold shutdown was following a refueling). In addition, the operators should be able to monitor RCS temperature and RPV level so that escalation to the alert level via CA4 or CA1 will occur if required.]
During refueling the level in the reactor vesselRPV will normally be maintained above the reactor vesselRPV flange. Refueling evolutions that lower decrease water level below the reactor vesselRPV flange are carefully planned and procedurally controlled. Loss of forced decay heat removal at reduced inventory may result in more rapid risincreases in RCS/reactor vesselRPV temperatures depending on the time since shutdown.
to 0CAN121102 Page 25 of 112 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CU34 N[Unlike the cold shutdown mode,] normal means of core temperature indication and RCS level indication may not be available in the refueling mode. Redundant means of reactor vesselRPV level indication are therefore procedurally installed to assure that the ability to monitor level will not be interrupted. However, if all level and temperature indication were to be lost in either the cold shutdown of refueling modes, EAL 2 would result in declaration of an NUE NOUE if both temperature and level indication cannot be restored within 15 minutes from the loss of both means of indication.
Escalation to Alert would be via CA1 based on an inventory loss or CA34 based on exceeding its temperature criteria.
to 0CAN121102 Page 26 of 112 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CU86 Initiating Condition -- NOTIFICATION OF UNUSUAL EVENT Loss of all oOnsite or oOffsite communications capabilities Operating Mode Applicability:         Cold Shutdown (Mode 5)
Refueling (Mode 6)
Defueled Example Emergency Action Level(s): (1 or 2)
: 1. Loss of all Table C2of the following onsite communication methods affecting the ability to perform routine operations.
(site specific list of communications methods)
OR
: 2. Loss of all Table C3 of the following offsite communication methods affecting the ability to perform offsite notifications.
(site specific list of communications methods)
Table C2                                       Table C3 Onsite Communications                        Offsite Communications Methods Methods Station radio system                      All telephone lines (commercial and microwave)
Plant paging system                       ENS In-plant telephones Gaitronics Basis:
The purpose of this IC and its associated EALs is to recognize a loss of communications capability that either defeats the plant operations staff ability to perform routine tasks necessary for plant operations or the ability to communicate issues with offsite authorities. The loss of off-site communications ability is expected to be significantly more comprehensive than the condition addressed by 10 CFR 50.72.
The availability of one method of ordinary offsite communications is sufficient to inform federal, state, and local authorities of plant issues. This EAL is intended to be used only when extraordinary means (e.g., relaying of information from radio transmissions, individuals being sent to offsite locations, etc.) are being utilized to make communications possible.
[Site specific list for on-site communications loss must encompass the loss of all means of routine communications (e.g., commercial telephones, sound powered phone systems, page party system and radios / walkie talkies).
Site specific list for off-site communications loss must encompass the loss of all means of communications with off-site authorities. This should include the ENS, commercial telephone lines, telecopy transmissions, and dedicated phone systems.]
to 0CAN121102 Page 27 of 112 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CU67 Initiating Condition -- NOTIFICATION OF UNUSUAL EVENT Loss of required DC power > for 15 minutes or longer.
Operating Mode Applicability:         Cold Shutdown (Mode 5)
Refueling (Mode 6)
Example Emergency Action Level(s):
Note: The SM Emergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. < 105 volts Less than (site specific bus voltage indication) on required Vital DC bus (site specific Vital DC busses) > for 15 minutes or longer.
Basis:
The purpose of this IC and its associated EALs is to recognize a loss of DC power compromising the ability to monitor and control the removal of decay heat during Cold Shutdown or Refueling operations.
[This EAL is intended to be anticipatory in as much as the operating crew may not have necessary indication and control of equipment needed to respond to the loss.]
[Plants will routinely perform maintenance on a Train related basis during shutdown periods The required busses are the minimum allowed by Technical Specifications for the mode of operation.]
It is intended that the loss of the operating (operable) train is to be considered. If this loss results in the inability to maintain cold shutdown, the escalation to an Alert will be per CA34.
[(Site specific) bus voltage should be based on the minimum bus voltage necessary for the operation of safety related equipment. This voltage value should incorporate a margin of at least 15 minutes of operation before the onset of inability to operate those loads. This voltage is usually near the minimum voltage selected when battery sizing is performed. Typically the value for the entire battery set is approximately 105 VDC. For a 60 cell string of batteries the cell voltage is typically 1.75 Volts per cell. For a 58 string battery set the minimum voltage is typically 1.81 Volts per cell.]
Fifteen minutes was selected as a threshold to exclude transient or momentary power losses.
to 0CAN121102 Page 28 of 112 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CU78 Initiating Condition -- NOTIFICATION OF UNUSUAL EVENT Inadvertent criticality Operating Mode Applicability:       Cold Shutdown (Mode 5)
Refueling (Mode 6)
Example Emergency Action Level(s):
: 1. UNPLANNED sustained positive period observed on nuclear instrumentation. (BWR)
: 1. UNPLANNED sustained positive startup rate observed on nuclear instrumentation. (PWR)
Basis:
This IC addresses criticality events that occur in Cold Shutdown or Refueling modes [(NUREG 1449, Shutdown and Low-Power Operation at Commercial Nuclear Power Plants in the United States)] such as fuel mis-loading events and inadvertent dilution events. This IC indicates a potential degradation of the level of safety of the plant, warranting an NOUE classification.
[This condition can be identified using the startup rate meter. The term sustained is used in order to allow exclusion of expected short term positive startup rates from planned fuel bundle or control rod movements during core alteration. These short term positive startup rates are the result of the rise in neutron population due to subcritical multiplication.]
Escalation would be by SMEmergency Director jJudgment.
to 0CAN121102 Page 29 of 112 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CA1 Initiating Condition - ALERT Loss of RCS/reactor vessel/RPV inventory.
Operating Mode Applicability: Cold Shutdown (Mode 5)
Refueling (Mode 6)
Example Emergency Action Level(s): (1 or 2)
Note: The SM/TSC Director/EOF DirectorEmergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. Loss of RCS/reactor vesselRPV inventory as indicated by: level.less than (site specific level)
Unit 1: RVLMS Levels 1 through 8 indicate DRY Unit 2: RVLMS Levels 1 through 5 indicate DRY OR Unit 1: Reactor vessel level < 368 ft., 0 in. (bottom of the hot leg)
Unit 2: Reactor vessel level < 369 ft., 1.5 in. (bottom of the hot leg)
[Low-Low ECCS actuation setpoint / Level 2 (BWR)]
[Bottom ID of the RCS loop (PWR)]
OR
: 2. RCS/reactor vesselRPV level cannot be monitored for > 15 minutes or longer with a loss of RCS/reactor vesselRPV inventory as indicated by an unexplained level rise in the Reactor Building Sump, Reactor Drain Tank, Aux. Building Equipment Drain Tank, Aux. Building Sump, or Quench Tank.(site specific sump or tank).
Basis:
These EALs serve as precursors to a loss of ability to adequately cool the fuel. The magnitude of this loss of water indicates that makeup systems have not been effective and may not be capable of preventing further reactor vesselRPV level loweringdecrease and potential core uncovery. This condition will result in a minimum emergency classification level of an Alert.
EAL #1
[The BWR Low-Low ECCS Actuation Setpoint/Level 2 was chosen because it is a standard setpoint at which some available injection systems automatically start. The PWR Bottom ID of the RCS Loop Setpoint was chosen because at this level remote RCS level indication may be lost and loss of suction to decay heat removal systems has occurred. The Bottom ID of the RCS Loop to 0CAN121102 Page 30 of 112 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CA1 Setpoint should be the level equal to the bottom of the RPV loop penetration (not the low point of the loop).]
The bottom of the RCS hot leg penetration into the reactor vessel is approximately RLVMS Level 8 (Unit 1) or RVLMS Level 5 (Unit 2). However, RVLMS may not be available in mode 6.
Redundant means level indication is provided in this mode and included in EAL #1. The bottom of the RCS hot leg penetration into the reactor vessel is 368 ft., 0 in. (Unit 1) or 369 ft., 1.5 in.
(Unit 2). Below this level, reactor vessel level indication will be lost and loss of suction to decay heat removal systems will occur. The inability to restore and maintain level after reaching this setpoint would be indicative of a failure of the RCS barrier.
EAL #2
[In the cold shutdown mode, normal RCS level and reactor vessel level instrumentation systems will usually be available. In the refueling mode, normal means of reactor vessel level indication may not be available. Redundant means of reactor vessel level indication will usually be installed (including the ability to monitor level visually) to assure that the ability to monitor level will not be interrupted. However, if all level indication were to be lost during a loss of RCS inventory event, the operators would need to determine that reactor vessel inventory loss was occurring by observing sump and tank level changes. Sump and tank level rises must be evaluated against other potential sources of leakage such as cooling water sources inside the containment to ensure they are indicative of RCS leakage.]
[The 15-minute duration for the loss of level indication was chosen because it is half of the CS1 Site Area Emergency EAL duration. Significant fuel damage is not expected to occur until the core has been uncovered for greater than 1 hour per the analysis referenced in the CG1 basis.
Therefore this EAL meets the definition for an Alert.]
If reactor vesselRPV level continues to lower then escalation to Site Area Emergency will be via CS1.
to 0CAN121102 Page 31 of 112 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CA53 Initiating Condition - ALERT Loss of all oOffsite and all oOnsSite AC power to Vital 4.16KVemergency busses > for 15 minutes or longer.
Operating Mode Applicability:       Cold Shutdown (Mode 5)
Refueling (Mode 6)
Defueled Example Emergency Action Level(s):
Note: The SM/TSC Director/EOF DirectorEmergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. Loss of all oOffsSite and all oOn-sSite AC pPower to Vital 4.16KV busses (site specific emergency busses)>for 15 minutes or longer.
Basis:
Loss of all AC power compromises all plant safety systems requiring electric power including DHR/shutdown coolingRHR, emergency core coolingECCS, cContainment coolingHeat Removal, sSpent fFuel pool coolingHeat Removal and the uUltimate hHeat sSink.
The event can be classified as an Alert when in cold shutdown, refueling, or defueled mode because of the significantly reduced decay heat and lower temperature and pressure, which allow raiincreasing the time to restore one of the emergency busses, relative to that specified for the Site Area Emergency EAL.
Escalating to Site Area Emergency, if appropriate, is by Abnormal Radiation Levels / Radiological Effluent (TAB A) ICs.
Fifteen minutes was selected as a threshold to exclude transient or momentary power losses.
[The companion IC is SS1].
to 0CAN121102 Page 32 of 112 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CA34 Initiating Condition - ALERT Inability to maintain plant in Ccold Sshutdown Operating Mode Applicability:        Cold Shutdown (Mode 5)
Refueling (Mode 6)
Example Emergency Action Level(s): (1 or 2)
: 1. An UNPLANNED event results in RCS temperature > 200&deg;Fgreater than (site specificTechnical Specification cold shutdown temperature limit) > for greater than the specified duration ion Ttable C1.
Table C1 RCS Reheat Duration Thresholds RCS                    Containment Closure               Duration Intact (but not RCS Lowered                   N/A                    60 minutes*
Inventory [PWR])
Not intact or RCS Lowered                Established                20 minutes*
Inventory (PWR)
Not Established               0 minutes
* If an RCS heat removal system is in operation within this time frame and RCS temperature is being reduced, the EAL is not applicable.
OR Note: EAL #2 does not apply in solid plant conditions.
: 2. An UNPLANNED event results in RCS pressure riseincrease > greater than10 psi due to a loss of RCS cooling. (PWR-This EAL does not apply in Solid Plant conditions.)
Basis:
EAL #1 TFor EAL 1, the RCS Reheat Duration Threshold table addresses complete loss of functions required for core cooling for greater than 60 minutes during refueling and cold shutdown modes when RCS integrity is established. [RCS integrity should be considered to be in place when the RCS pressure boundary is in its normal condition for the cold shutdown mode of operation (e.g.,
no freeze seals or nozzle dams). The status of CONTAINMENT CLOSURE in this condition is immaterial given that the RCS is providing a high pressure barrier to fission product release to the environment.] The 60 minute time frame should allow sufficient time to restore cooling without there being a substantial degradation in plant safety.
The RCS Reheat Duration Threshold table also addresses the complete loss of functions required for core cooling for greater than 20 minutes during refueling and cold shutdown modes when CONTAINMENT CLOSURE is established but RCS integrity is not established or RCS to 0CAN121102 Page 33 of 112 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CA34 inventory is reduced [(e.g., mid-loop operation in PWRs)]. [As discussed above, RCS integrity should be assumed to be in place when the RCS pressure boundary is in its normal condition for the cold shutdown mode of operation (e.g., no freeze seals or nozzle dams)]. The allowed 20 minute time frame was included to allow operator action to restore the heat removal function, if possible. [The allowed time frame is consistent with the guidance provided by Generic Letter 88-17, "Loss of Decay Heat Removal" (discussed later in this basis) and is believed to be conservative given that a low pressure Containment barrier to fission product release is established.]
Finally, the EAL addresses complete loss of functions required for core cooling during refueling and cold shutdown modes when neither CONTAINMENT CLOSURE nor RCS integrity are established. Finally, complete loss of functions required for core cooling during refueling and cold shutdown modes when neither CONTAINMENT CLOSURE nor RCS integrity are established.
[RCS integrity is in place when the RCS pressure boundary is in its normal condition for the cold shutdown mode of operation (e.g., no freeze seals or nozzle dams). No delay time is allowed because the evaporated reactor coolant that may be released into the Containment during this heatup condition could also be directly released to the environment.]
Thenote (*) indicates that this EAL is not applicable if actions are successful in restoring an RCS heat removal system to operation and RCS temperature is being reduced within the specified time frame.
EAL #2 TIn EAL 2, the 10 psi pressure riseincrease addresses situations where, due to high decay heat loads, the time provided to restore temperature control, should be less than 60 minutes. The RCS pressure setpoint chosen should be 10 psi or the lowest pressure that the site can read on installed Control Board instrumentation that is equal to or greater than 10 psi.
Escalation to Site Area Emergency would be via CS1 should boiling result in significant reactor vesselRPV level loss leading to core uncovery.
[For PWRs, this IC and its associated EALs are based on concerns raised by Generic Letter 88-17, "Loss of Decay Heat Removal." A number of phenomena such as pressurization, vortexing, steam generator U-tube draining, RCS level differences when operating at a mid-loop condition, decay heat removal system design, and level instrumentation problems can lead to conditions where decay heat removal is lost and core uncovery can occur. NRC analyses show that there are sequences that can cause core uncovery in 15 to 20 minutes and severe core damage within an hour after decay heat removal is lost.]
A loss of Technical Specification components alone is not intended to constitute an Alert. The same is true of a momentary UNPLANNED excursion above the Technical Specification cold shutdown temperature limit when the heat removal function is available.
The SM/TSC Director/EOF Director Emergency Director must remain alert to events or conditions that lead to the conclusion that exceeding the EAL is IMMINENT. If, in the judgment of the SM/TSC Director/EOF DirectorEmergency Director, an IMMINENT situation is at hand, the classification should be made as if the threshold has been exceeded.
to 0CAN121102 Page 34 of 112 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CS1 Initiating Condition - SITE AREA EMERGENCY Loss of RCS/reactor vesselRPV inventory affecting core decay heat removal capability.
Operating Mode Applicability:         Cold Shutdown (Mode 5)
Refueling (Mode 6)
Example Emergency Action Level(s): (1 or 2 or 3)
Note: The SM/TSC Director/EOF Director Emergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. With CONTAINMENT CLOSURE notnot established:RCS/RPV level less than (site specific level).
Unit 1: RVLMS Levels 1 through 9 indicate DRY Unit 2: RVLMS Levels 1 through 6 indicate DRY
[6" below the bottom ID of the RCS loop (PWR)]
[6" below the low-low ECCS actuation setpoint (BWR)]
OR
: 2. With CONTAINMENT CLOSURE established, core exit thermocouples indicate superheat.
RCS/RPV level less than (site specific level for TOAF).
OR
: 3. RCS/reactor vesselRPV level cannot be monitored for > 30 minutes or longer with a loss of RCS/reactor vessel RPV inventory as indicated by any ANY of the following:
Containment High Range Radiation Monitor reading > 10R/hr (Site specific radiation monitor) reading greater than (site specific value)
Erratic sSource rRange mMonitor iIndication Unexplained level rise in Reactor Building Sump, Reactor Drain Tank, Quench Tank, Aux. Building Equipment Drain Tank, or Aux. Building Sump.(site specific sump or tank)
Basis:
Under the conditions specified by this IC, continued loweringdecrease in RCS/reactor vesselRPV level is indicative of a loss of inventory control. Inventory loss may be due to an RCS breach, pressure boundary leakage, or continued boiling in the RPV. Thus, declaration of a Site Area Emergency is warranted.
Escalation to a General Emergency is via CG1 or AG1.
to 0CAN121102 Page 35 of 112 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CS1 EAL #1
[6 below the bottom ID of the RCS Loop should be the level equal to 6 below the bottom of the RPV loop penetration (not the low point of the loop). PWRs unable to measure this level should choose the first observable point below the bottom ID of the loop as the EAL value. If a water level instrument is not available such that the PWR EAL value cannot be determined, then EAL 3 should be used to determine if the IC has been met.]
[Since BWRs have RCS penetrations below the EAL value, continued level decrease may be indicative of pressure boundary leakage.]
EAL #3
[In the cold shutdown mode, normal RCS level and reactor vessel level instrumentation systems will usually be available. In the refueling mode, normal means of reactor vessel level indication may not be available. Redundant means of reactor vessel level indication will usually be installed (including the ability to monitor level visually) to assure that the ability to monitor level will not be interrupted. However, if all level indication were to be lost during a loss of RCS inventory event, the operators would need to determine that reactor vessel inventory loss was occurring by observing sump and tank level changes. Sump and tank level rises must be evaluated against other potential sources of leakage such as cooling water sources inside the containment to ensure they are indicative of RCS leakage.]
The 30-minute duration allows sufficient time for actions to be performed to recover inventory control equipment.
As water level in the reactor vesselRPV lowers, the dose rate above the core will riseincrease.
The dose rate due to this core shine should result in site specific monitor indication and possible alarm.
[This EAL should conservatively estimate a site specific dose rate setpoint indicative of core uncovery (i.e., level at TOAF). For BWRs that do not have installed radiation monitors capable of indicating core uncovery, alternate site specific level indications of core uncovery should be used.]
[Post-TMI studies indicated that the installed nuclear instrumentation will operate erratically when the core is uncovered and that this should be used as a tool for making such determinations.]
to 0CAN121102 Page 36 of 112 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CG1 Initiating Condition - GENERAL EMERGENCY Loss of RCS/reactor vesselRPV inventory affecting fuel clad integrity with containment challenged Operating Mode Applicability:          Cold Shutdown (Mode 5)
Refueling (Mode 6)
Example Emergency Action Level(s): (1 or 2)
Note: The SM/TSC Director/EOF DirectorEmergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. a. Core exit thermocouples indicate superheat RCS/RPV level less than (site specific level for TOAF) for > 30 minutes or longer.
AND
: b. Any of the following containment challenge indications:ANY containment challenge indication (see Table):
CONTAINMENT CLOSURE not established Explosive mixture inside containment UNPLANNED rise in containment pressure OR
: 2. a. RCS/reactor vesselRPV level cannot be monitored with core uncovery indicated by any ANY of the following for > 30 minutes: or longer Containment High Range Radiation Monitor reading > 10R/hr (Site specific radiation monitor) reading greater than (site specific setpoint).
Erratic source range monitor indication UNPLANNED level rise in Reactor Building Sump, Reactor Drain Tank, Quench Tank, Aux. Building Equipment Drain Tank, or Aux. Building Sump (site specific sump or tank).
[Other site specific indications]
AND 36 to 0CAN121102 Page 37 of 112 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CG1
: b. Any of the following containment challenge indications: ANY containment challenge indication (see Table):
Table: Containment Challenge Indications CONTAINMENT CLOSURE not established.
(Site specific explosive mixture) inside containment.
UNPLANNED rise in containment pressure.
Secondary containment radiation monitor reading above (site specific value). [BWR only]
CONTAINMENT CLOSURE not established Explosive mixture inside containment UNPLANNED rise in containment pressure Basis:
This IC represents the inability to restore and maintain reactor vesselRPV level to above the top of active fuel with containment challenged. Fuel damage is probable if reactor vesselRPV level cannot be restored, as available decay heat will cause boiling, further reducing the reactor vesselRPV level. With the CONTAINMENT breached or challenged then the potential for unmonitored fission product release to the environment is high. This represents a direct path for radioactive inventory to be released to the environment. This is consistent with the definition of a GE. The GE is declared on the occurrence of the loss or IMMINENT loss of function of all three barriers.
[These EALs are based on concerns raised by Generic Letter 88-17, Loss of Decay Heat Removal, SECY 91-283, Evaluation of Shutdown and Low Power Risk Issues, NUREG-1449, Shutdown and Low-Power Operation at Commercial Nuclear Power Plants in the United States, and, NUMARC 91-06, Guidelines for Industry Actions to Assess Shutdown Management.]
A number of variables can have a significant impact on heat removal capability challenging the fuel clad barrier. Examples include: [BWRs] initial vessel level, shutdown heat removal system design
[PWRs] mid-loop, reduced level/flange level, head in place, cavity flooded, RCS venting strategy, decay heat removal system design, vortexing pre-disposition, and steam generator U-tube draining.
Analysis indicates that core damage may occur within an hour following continued core uncovery therefore, 30 minutes was conservatively chosen.
If CONTAINMENT CLOSURE is re-established prior to exceeding the 30 minute core uncovery time limit then escalation to GE would not occur.
37 to 0CAN121102 Page 38 of 112 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CG1
[Site shutdown contingency plans typically provide for re-establishing CONTAINMENT CLOSURE following a loss of heat removal or RCS inventory functions.]
[In the early stages of a core uncovery event, it is unlikely that hydrogen buildup due to a core uncovery could result in an explosive mixture of dissolved gasses in Containment. However, Containment monitoring and/or sampling should be performed to verify this assumption and a General Emergency declared if it is determined that an explosive mixture exists.]
[For BWRs, the use of secondary containment radiation monitors should provide indication of increased release that may be indicative of a challenge to secondary containment. The site specific radiation monitor values should be based on the EOP maximum safe values because these values are easily recognizable and have an emergency basis.]
EAL #2 Sump and tank level risesincreases must be evaluated against other potential sources of leakage such as cooling water sources inside the containment to ensure they are indicative of RCS leakage.
[In the cold shutdown mode, normal RCS level and reactor vessel level instrumentation systems will usually be available. In the refueling mode, normal means of reactor vessel level indication may not be available. Redundant means of reactor vessel level indication will usually be installed (including the ability to monitor level visually) to assure that the ability to monitor level will not be interrupted. However, if all level indication were to be lost during a loss of RCS inventory event, the operators would need to determine that reactor vessel inventory loss was occurring by observing sump and tank level changes. Sump and tank level rises must be evaluated against other potential sources of leakage such as cooling water sources inside the containment to ensure they are indicative of RCS leakage.]
As water level in the reactor vesselRPV lowers, the dose rate above the core will riseincrease.
The dose rate due to this core shine should result in site specific monitor indication and possible alarm.
[This EAL should conservatively estimate a site specific dose rate setpoint indicative of core uncovery (ie., level at TOAF). For BWRs that do not have installed radiation monitors capable of indicating core uncovery, alternate site specific level indications of core uncovery should be used.]
[Post-TMI studies indicated that the installed nuclear instrumentation will operate erratically when the core is uncovered and that this should be used as a tool for making such determinations.]
Reference Documents
: 1.      ULD-1-SYS-24, Unit 1 Inadequate Core Cooling
: 2.      ULD-2-SYS-24, Unit 2 Inadequate Core Cooling 38 to 0CAN121102 Page 39 of 112 ISFSI MALFUNCTION E-HU1 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT Damage to a loaded cask CONFINEMENT BOUNDARY Operating Mode Applicability: All Not applicable Example Emergency Action Level(s):
: 1. Damage to a loaded cask CONFINEMENT BOUNDARY.
Basis:
An NUEA NOUE in this IC is categorized on the basis of the occurrence of an event of sufficient magnitude that a loaded cask CONFINEMENT BOUNDARY is damaged or violated. This includes classification based on a loaded fuel storage cask CONFINEMENT BOUNDARY loss leading to the degradation of the fuel during storage or posing an operational safety problem with respect to its removal from storage.
[The results of the ISFSI Safety Analysis Report (SAR) per NUREG 1536 or SAR referenced in the cask(s) Certificate of Compliance and the related NRC Safety Evaluation Report identify natural phenomena events and accident conditions that could potentially effect the CONFINEMENT BOUNDARY]This EAL addresses a dropped cask, a tipped over cask, EXPLOSION, PROJECTILE damage, FIRE damage or natural phenomena affecting a cask (e.g.,
seismic event, tornado, etc.).
39 to 0CAN121102 Page 40 of 112 FISSION PRODUCT BARRIERS General BasesNOTES The logic used for these initiating conditions reflects the following considerations:
The Fuel Clad Barrier and the RCS Barrier are weighted more heavily than the Containment Barrier (See Sections 3.4 and 3.8). NUENOUE ICs associated with RCS and Fuel Clad Barriers are addressed under System Malfunction (S) ICs.
At the Site Area Emergency level, there must be some ability to dynamically assess how far present conditions are from the threshold for a General Emergency. For example, if Fuel Clad and RCS Barrier Loss EALs existed, that, in addition to off-site dose assessments, would require continual assessments of radioactive inventory and containment integrity.
Alternatively, if both Fuel Clad and RCS Barrier Potential Loss EALs existed, the SM/TSC Director/EOF DirectorEmergency Director would have more assurance that there was no immediate need to escalate to a General Emergency.
The ability to escalate to higher emergency classesclassification levels as an event deteriorates must be maintained. For example, RCS leakage steadily increasing would represent an increasing risk to public health and safety.
The Containment Barrier should not be declared lost or potentially lost based on exceeding Technical Specification action statement criteria, unless there is an event in progress requiring mitigation by the Containment barrier. When no event is in progress (Loss or Potential Loss of either Fuel Clad and/or RCS) the Containment Barrier status is addressed by Technical Specifications.
40 to 0CAN121102 Page 41 of 112 FISSION PRODUCT BARRIERS PWR TABLE 5-F-3 FUEL CLAD FUEL Fuel CLAD Clad BARRIER Barrier Emergency Action LevelsTHRESHOLDS: (1 or 2 or 3 or 4 or 6 or 7 or 8) FCB1 OR FCB2 OR FCB3 OR FCB4 OR FCB5 OR FCB6 The Fuel Clad barrier consists of the zircalloy or stainless steel fuel bundle tubes that contain the fuel pellets.
: 1. Critical Safety Function Status
[These thresholds are for PWRs using Critical Safety Function Status Tree (CSFST) monitoring and functional restoration procedures. For more information, please refer to Section 3.9 of this document.]
Loss: Core Cooling Red Entry Conditions Met.
Potential Loss: Core Cooling-Orange Entry Conditions Met OR Heat Sink-Red Entry Conditions Met.
Loss Threshold A Core Cooling - RED indicates significant superheating and core uncovery and is considered to indicate loss of the Fuel Clad Barrier.
Potential Loss Threshold A Core Cooling - ORANGE indicates subcooling has been lost and that some clad damage may occur.
Potential Loss Threshold B Heat Sink - RED when heat sink is required indicates the ultimate heat sink function is under extreme challenge.
: 12. Primary Coolant Activity Level (FCB1)
Loss:
: 1. Coolant activity >greater than (site specific value) 300 &#xb5;Ci/gm dose equivalent I-131 activity by Chemistry sample OR
: 2. Radiation levels > 1000 MR/hr Unit 1: at SA-229 Unit 2: at 2TCD-19 41 to 0CAN121102 Page 42 of 112 FISSION PRODUCT BARRIERS PWR TABLE 5-F-3 FUEL CLAD Potential Loss: NoneNot Applicable Basis:
Loss The site specific value corresponds to 300 Ci/gm I-131 equivalent. Assessment by the EAL Task Force indicates that this amount of coolant activity is well above that expected for iodine spikes and corresponds to less than 5% fuel clad damage. This amount of radioactivity indicates significant clad damage and thus the Fuel Clad Barrier is considered lost.
[The value can be expressed either in mR/hr observed on the sample or as Ci/gm results from analysis.]
A reading of greater than 1000 mR/hr within at one foot from the RCS sample lines (SA-229 for Unit 1, 2TCD-19 for Unit 2) has been determined to correspond to fuel clad failure of approximately 2-5%, and thus the fuel clad barrier is considered lost. This reading is well above that expected for iodine spikes and thus indicates significant clad damage and thus the fuel clad barrier is considered lost.
Potential Loss There is no Potential Loss EALthreshold associated with this item.
Reference Documents
: 1. ANO Calculation 03-E-0002-01, Radiation Monitor EAL Setpoints for Fission Product Barrier Degradation
: 23. Core Exit Thermocouple Readings (FCB2)
Loss: Core exit thermocouples reading > 1200 &deg;F CET temperaturegreater than (site specific degree F).
Potential Loss: Core exit thermocouples reading greater than (site specific degree F).
Unit 1: ICC exists as evidenced by CETs indicating superheated conditions Unit 2: Average CETs indicate superheat for current RCS pressure Basis:
[Core Exit Thermocouple Readings are included in addition to the Critical Safety Functions to include conditions when the CSFs may not be in use (initiation after SI is blocked) or plants which do not have a CSF scheme.]
42 to 0CAN121102 Page 43 of 112 FISSION PRODUCT BARRIERS PWR TABLE 5-F-3 FUEL CLAD Loss Threshold A The Loss EAL of > 1200 &deg;F is consistent with NEI 99-01 and correspondsThe site specific reading should correspond to significant superheating of the coolant.
[This value typically corresponds to the temperature reading that indicates core cooling - RED in Fuel Clad Barrier loss threshold 1.A which is usually about 1200 degrees F.]
Potential Loss Threshold A The site specific reading should correspond to loss of subcooling. The Potential Loss EAL corresponds to a loss of subcooling margin.
Note that the loss or potential loss EAL for this category will occur after a loss of adequate sub-cooling margin, which represents a loss of the RCS barrier in EAL RCB1, and therefore represents the loss of two barriers, resulting in a Site Area Emergency per FS1. Any loss or potential loss of the containment barrier at that point would escalate to a General Emergency.
[This value typically corresponds to the temperature reading that indicates core cooling -
ORANGE in Fuel Clad Barrier potential loss threshold 1.A which is usually about 700 to 900 degrees F.]
Reference Documents
: 1. Unit 1 EOP 1202.005, Inadequate Core Cooling
: 2. Unit 1 EOP 1202.013, EOP Figures
: 3. Unit 2 OP 2202.009, Functional Recovery
: 4. ANO Procedure OP 1302.022, Core Damage Assessment
: 5. CE-NPSD-241, Development of the Comprehensive Procedure Guideline for Core Damage Assessment, Task 467
: 6. BWOG EOP Technical Bases Document, Vol. 3, Chapter III.F
: 34. Reactor Vessel Water Level (FCB3)
Loss: NoneNot Applicable Potential Loss: RCS/RPV level less than (site specific level for TOAF).
Unit 1: RVLMS Levels 1 through 9 indicate DRY Unit 2: RVLMS Levels 1 through 7 indicate DRY Basis:
Loss There is no Loss EALthreshold associated with this item.
43 to 0CAN121102 Page 44 of 112 FISSION PRODUCT BARRIERS PWR TABLE 5-F-3 FUEL CLAD Potential Loss The site specific value for the Potential Loss threshold corresponds to the top of the active fuel.
The Reactor Vessel Level Monitoring Systems at ANO do not provide positive indication of core uncovery. The above core level indication provided is used to monitor the approach to and recovery from ICC conditions, but the CETs are used to identify core uncovery, and are the only positive indication of core uncovery.
Per reference document #1, the reactor vessel level indicators installed in Unit 1 extend from the top of the reactor vessel to the fuel alignment plate, and information in reference document #2 indicates that the lowest sensor is greater than 2 feet above the top of active fuel. If any of the 4 RCPs are running, flow induced turbulence produced by the pumps renders the reactor vessel level indicator readings invalid.
Per reference document #3, only the reactor vessel level indicators above the core are considered part of the ICC monitoring system. Per reference document #4, the lowest sensor above the core, RVLMS LVL 6 on the ICC monitoring panel 2C388, is 47 inches above the top of the core. If any of the 4 RCPs are running, flow induced turbulence produced by the pumps renders the reactor vessel level indicator readings invalid.
For either unit then, should CET indication be unavailable and reactor vessel level indication be unavailable due to RCP operation or any other cause, a degraded ability to monitor the barrier would exist.
[For sites using CSFSTs, the Potential Loss threshold is defined by the Core Cooling - ORANGE path. The site specific value in this threshold should be consistent with the CSFST value.]
Reference Documents
: 1. ULD-1-SYS-24, Unit 1 Inadequate Core Cooling System
: 2. Calculation 84-EQ-0080-02, Loop Error Analysis for Reactor Vessel Level Monitoring System
: 3. ULD-2-SYS-24, Unit 2 Inadequate Core Cooling Monitoring System
: 4. Calculation 90-E-0116-01, Unit 2 EOP Setpoint Document, Setpoint R.3
: 5. Not Applicable (included for numbering consistency between barrier tables)
: 46. Containment Radiation Monitoring (FCB4)
Loss: Containment radiation monitor reading greater than (site specific value). Containment high range radiation monitor reading > 1000 R/hr Potential Loss: NoneNot Applicable Basis:
44 to 0CAN121102 Page 45 of 112 FISSION PRODUCT BARRIERS PWR TABLE 5-F-3 FUEL CLAD Loss The 1000 R/hrsite specific reading on the containment high range radiation monitors (RE-8060 or RE-8061 for Unit 1, 2RE-8925-1 or 2RE-8925-2 for Unit 2) is a value which indicates the release of reactor coolant, with elevated activity indicative of fuel damage, into the containment.
[The reading should be calculated assuming the instantaneous release and dispersal of the reactor coolant noble gas and iodine inventory associated with a concentration of 300 Ci/gm dose equivalent I-131 into the containment atmosphere.]
Reactor coolant concentrations of this magnitude are several times larger than the maximum concentrations (including iodine spiking) allowed within technical specifications and are therefore indicative of fuel damage.
This radiation monitor value is higher than that specified for RCS barrier Loss EAL RCB3threshold #6. Thus, this EALthreshold indicates a loss of both the Fuel Clad barrier and RCS barrier that appropriately escalates the emergency classification level to a Site Area Emergency per FS1.
Potential Loss[Caution: it is important to recognize that in the event the radiation monitor is sensitive to shine from the reactor vessel or piping, spurious readings will be present and another indicator of fuel clad damage is necessary or compensated for in the threshold value.]
There is no Potential Loss EALthreshold associated with this item.
Reference Documents
: 1. NUREG 1228, Source Term Estimation During Incident Response to Severe Nuclear Power Plant Accidents
: 2. ANO Calculation 03-E-0002-01, Radiation Monitor EAL Setpoints for Fission Product Barrier Degradation
: 57. Other Site Specific Indications Core Damage Assessment (FCB5)
This subcategory addresses other site specific thresholds that may be included to indicate loss or potential loss of the Fuel Clad barrier.
Loss: At least 5% fuel clad damage as determined from core damage assessment Potential Loss: None Basis:
45 to 0CAN121102 Page 46 of 112 FISSION PRODUCT BARRIERS PWR TABLE 5-F-3 FUEL CLAD Loss This level is consistent with other fuel clad barrier loss EALs indicative of significant fuel clad damage, but uses core damage assessment evaluations by Technical Support personnel. The fuel clad barrier is considered lost.
If this determination is made from the high range containment radiation monitor readings, or if accompanied by other indications of a loss or potential loss of the RCS barrier, this EAL condition represents a Site Area Emergency per FS1.
Potential Loss There is no potential loss EAL associated with this item.
Reference Documents
: 1. ANO Procedure OP-1302.022, Core Damage Assessment
: 68. Emergency Director Judgment (FCB6)
Loss: Any condition in the opinion of the SM/TSC Director/EOF DirectorEmergency Director that indicates Loss or Potential Loss of the Fuel Clad bBarrier.
Potential Loss: Any condition in the opinion of the Emergency Director that indicates Potential Loss of the Fuel Clad Barrier.
Basis:
This EALThese thresholds addresses any other factors that are to be used by the SM/TSC Director/EOF Director Emergency Director in determining whether the Fuel Clad barrier is lost or potentially lost. In addition, the inability to monitor the barrier should also be incorporated in this EALthreshold as a factor in SM/TSC Director/EOF Director Emergency Director judgment that the barrier may be considered lost or potentially lost.
46 to 0CAN121102 Page 47 of 112 FISSION PRODUCT BARRIERS PWR TABLE 5-F-3 RCS RCS BarrierARRIER EALsTHRESHOLDS: (1 or 2 or 4 or 6 or 7 or 8) RCB1 OR RCB2 OR RCB3 OR RCB4 The RCS Barrier includes the RCS primary side and its connections up to and including the pressurizer safety and relief valves, and other connections up to and including the primary isolation valves.
: 1. Critical Safety Function Status
[These thresholds are for PWRs using Critical Safety Function Status Tree (CSFST) monitoring and functional restoration procedures. For more information, refer to Section 3.9 of this report.]
Loss: Not Applicable Potential Loss:
A. RCS Integrity-Red Entry Conditions Met.
OR B. Heat Sink-Red Entry Conditions Met.
TBD OR Potential Loss Threshold A RCS Integrity - RED indicates an extreme challenge to the safety function derived from appropriate instrument readings.
Potential Loss Threshold B Heat Sink - RED when heat sink is required indicates the ultimate heat sink function is under extreme challenge.
There is no Loss threshold associated with this item.
: 12. RCS Leak Rate (RCB1)
Loss: RCS leak rate > greater than available makeup capacity as indicated by: a loss of RCS subcooling.
Unit 1: Loss of adequate subcooling margin Unit 2: RCS subcooling (MTS) can NOT be maintained at least 30 &deg;F 47 to 0CAN121102 Page 48 of 112 FISSION PRODUCT BARRIERS PWR TABLE 5-F-3 RCS Potential Loss: RCS leak rate indicated greater than (site specific capacity of one charging pump in the normal charging mode) with Letdown isolated.
Unit 1: UNISOLABLE RCS leak > 50 gpm with Letdown isolated Unit 2: UNISOLABLE RCS leak > 44 gpm with Letdown isolated Basis:
Loss Threshold A This EALthreshold addresses conditions where leakage from the RCS is greater than available inventory control capacity such that a loss of subcooling has occurred. The loss of subcooling is the fundamental indication that the inventory control systems are inadequate in maintaining RCS pressure and inventory against the mass loss through the leak.
Potential Loss Threshold A This EALthreshold is based on the apparent inability to maintain normal liquid inventory within the Reactor Coolant System (RCS) by normal operation of the Makeup and Purification System (Unit 1) or the Chemical and Volume Control System (Unit 2).Chemical and Volume Control System which is considered to be the flow rate equivalent to one charging pump discharging to the charging header.
For Unit 1 this is based on indications that leakage is greater than normal makeup capacity.
The operator could not batch in water and boric acid to the makeup system fast enough to maintain the makeup tank level during a 50 gpm RCS leak. It is not necessary to perform a detailed assessment of the RCS leakrate to implement this EAL. Any event or condition which, in the judgment of the SM/TSC Director/EOF Director, could result in RCS leakage in excess of Unit 1 normal makeup capacity would meet the intent of this EAL; for example:
Need to open the BWST suction for the operating makeup pump due to decreasinglowering makeup tank level Full or partial HPI is needed to maintain the RCS pressure or pressurizer level Two out of three seal stages failed on any RCP RCS pressure decreasinglowering due to failure of a primary relief valve to reseat For Unit 2, this is considered as the capacity of one charging pump discharging to the charging header (44 gpm). Any event or condition which, in the judgment of the SM/TSC Director/EOF Director, could result in RCS leakage in excess of Unit 2 normal makeup capacity would meet the intent of this EAL; for example:
A second charging pump being required is indicative of a substantial RCS leak Three out of four seal stages failed on any RCP RCS pressure decreasinglowering due to failure of a primary relief valve to reseat 48 to 0CAN121102 Page 49 of 112 FISSION PRODUCT BARRIERS PWR TABLE 5-F-3 RCS Isolating letdown is a standard abnormal operating procedure action and may prevent unnecessary classifications when a non-RCS leakage path such as a Makeup and Purification System or CVCS leak exists. The intent of this condition is met if attempts to isolate Letdown are NOT successful. Additional charging pumps being required is indicative of a substantial RCS leak.
[For plants with low capacity charging pumps, a 50 gpm indicated leak rate value may be used to indicate the Potential Loss.]
Reference Documents
: 1. Unit 1 EOP 1202.013, Figure 1, Saturation and Adequate SCM
: 2. Unit 1 EOP Setpoint Document, Calculation 90-E-0116-07, Setpoint B.19
: 3. Unit 2 EOP 2202.009, Functional Recovery
: 4. Unit 2 EOP Setpoint Document, Calculation 90-E-0116-01
: 5. Unit 2 SAR Table 9.3-14, Charging Pumps Design Data
: 3. Not Applicable (included for numbering consistency between barrier tables)
: 24. SG Tube Rupture (RCB2)
Loss: SGTR Ruptured SG that results in an ECCS (SI) actuation Potential Loss: NoneNot Applicable Basis:
Loss This EALthreshold addresses the full spectrum of Steam Generator (SG) tube rupture events in conjunction with Containment barrier Loss EALsthresholds. It addresses RUPTURED SG(s) for which the leakage is large enough to cause actuation (either automatic or manual) of ECCS (SI).
This is consistent to the RCS leak rate barrier Potential Loss EALthreshold.
[For plants that have implemented Westinghouse Owners Group emergency response guides, this condition is described by entry into E-3 required by EOPs.]
By itself, this EALthreshold will result in the declaration of an Alert. However, if the SG is also FAULTED (i.e., two barriers failed), the declaration escalates to a Site Area Emergency per Containment barrier Loss EAL CNB3thresholds.
Potential Loss There is no Potential Loss EALthreshold associated with this item.
: 5. Not Applicable (included for numbering consistency between barrier tables) 49 to 0CAN121102 Page 50 of 112 FISSION PRODUCT BARRIERS PWR TABLE 5-F-3 RCS
: 36. Containment Radiation Monitoring (RCB3)
Loss: Containment radiation monitor reading greater than (site specific value). Containment high range rad monitor reading > 100 R/hr.
Potential Loss: NoneNot Applicable Basis:
Loss The 100 R/hrsite specific reading on the containment high range radiation monitors (RE-8060 or RE-8061 for Unit 1, 2RE-8925-1 or 2RE-8925-2 for Unit 2) is a value which indicates the release of reactor coolant to the containment.
[The reading should be calculated assuming the instantaneous release and dispersal of the reactor coolant noble gas and iodine inventory associated with normal operating concentrations (i.e., within T/S) into the containment atmosphere.]
This reading is will beless than that specified for Fuel Clad barrier EAL FCB4 threshold 6. Thus, this EALthreshold is would be indicative of a RCS leak only. If the radiation monitor reading roseincreased to that specified by Fuel Clad barrier EALthreshold, fuel damage would also be indicated.
[However, if the site specific physical location of the containment radiation monitor is such that radiation from a cloud of released RCS gases could not be distinguished from radiation from adjacent piping and components containing elevated reactor coolant activity, this threshold should be omitted and other site specific indications of RCS leakage substituted.]
During the initial fifteen minutes after a thermal event inside containment, the high range radiation monitor readings are considered invalid due to possibility of a transient thermally-induced current.
Potential Loss There is no Potential Loss EALthreshold associated with this item.
Reference Documents
: 1. ANO Calculation 03-E-0002-01, Radiation Monitor EAL Setpoints for Fission Product Barrier Degradation
: 7. Other Site Specific Indications This subcategory addresses other site specific thresholds that may be included to indicate loss or potential loss of the RCS barrier.
: 48. Emergency Director Judgment (RCB4) 50 to 0CAN121102 Page 51 of 112 FISSION PRODUCT BARRIERS PWR TABLE 5-F-3 RCS Loss: Any condition in the opinion of the SM/TSC Director/EOF DirectorEmergency Director that indicates Loss or Potential Loss of the RCS Barrier.
Potential Loss: Any condition in the opinion of the Emergency Director that indicates Potential Loss of the Fuel Clad Barrier.
Basis:
This EALThese thresholds addresses any other factors that are to be used by the SM/TSC Director/EOF Director Emergency Director in determining whether the RCS barrier is lost or potentially lost. In addition, the inability to monitor the barrier should also be incorporated in this EALthreshold as a factor in SM/TSC Director/EOF Director Emergency Director judgment that the barrier may be considered lost or potentially lost.
51 to 0CAN121102 Page 52 of 112 FISSION PRODUCT BARRIERS PWR TABLE 5-F-3 CONTAINMENT ContainmentONTAINMENT BarrierARRIER EALsTHRESHOLDS: (1 or 2 or 3 or 4 or 5 or 6 or 7 or 8) CNB1 OR CNB2 OR CNB3 OR CNB4 OR CNB5 OR CNB6 OR CNB7 The Containment Barrier includes the containment building and connections up to and including the outermost containment isolation valves. This barrier also includes the main steam, feedwater, and blowdown line extensions outside the containment building up to and including the outermost secondary side isolation valve.
: 1. Critical Safety Function Status
[These thresholds are for PWRs using Critical Safety Function Status Tree (CSFST) monitoring and functional restoration procedures. For more information, refer to Section 3.9 of this report.]
Loss: Not Applicable Potential Loss: A. Containment-Red Entry Conditions Met.
RED path indicates an extreme challenge to the safety function derived from appropriate instrument readings and/or sampling results, and thus represents a potential loss of containment.
Conditions leading to a Containment RED path result from RCS barrier and/or Fuel Clad Barrier Loss. Thus, this threshold is primarily a discriminator between Site Area Emergency and General Emergency representing a potential loss of the third barrier.
There is no Loss threshold associated with this item.
: 2. Containment Pressure (CNB)
Loss:
1.A. A containment pressure rise followed by a Rrapid unexplained drop in containment pressure following an initial rise in containment pressure OR 2.B. Containment pressure or sump level response not consistent with LOCA conditions Potential Loss:
1.A. Unit 1: Containment pressure > 73.7 PSIA (59 PSIG)greater than (site specific value) and rising Unit 2: Containment pressure > 73.7 PSIA (59 PSIG)greater than (site specific value) and rising OR 52 to 0CAN121102 Page 53 of 112 FISSION PRODUCT BARRIERS PWR TABLE 5-F-3 CONTAINMENT 2.B. Explosive mixture exists inside containment.
OR 3.C. a. Containment Pressure> greater than containment spray depressurization actuation setpoint UNIT 1: 44.7 PSIA (30 PSIG)
UNIT 2: 23.3 PSIA (8.6 PSIG)
AND
: b. LESS THANLess than one full train of spray depressurization equipment operating Basis:
Loss Thresholds A and B Rapid unexplained loss of pressure (i.e., not attributable to containment spray or condensation effects) following an initial pressure riseincrease from a primary or secondary high energy line break indicates a loss of containment integrity. Containment pressure and sump levels should riseincrease as a result of mass and energy release into containment from a LOCA. Thus, sump level or pressure not risincreasing indicates containment bypass and a loss of containment integrity.
This indicator relies on operator recognition of an unexpected response for the condition and therefore does not have a specific value associated with it. The unexpected response is important because it is the indicator for a containment bypass condition.
Potential Loss 1. Threshold A The site specific pressure is based on the containment design pressure.
Potential Loss 2. Threshold B Existence of an explosive mixture means a hydrogen and oxygen concentration of at least the lower deflagration limit curve exists. The hydrogen concentration of 4% has been recognized by the NRC staff as a well-established lower flammability limit in air or steam-air atmospheres that is adequately conservative for protecting against an H 2 explosion.
Hydrogen control systems at ANO are designed and operated as to maintain the containment hydrogen concentration below this level, so that indications of hydrogen concentrations above this are considered a potential challenge to the containment integrity.The indications of potential loss under this EAL corresponds to some of those leading to the RED path in potential loss threshold 1.A above and may be declared by those sites using CSFSTs.
53

Attachment 2 to 0CAN121102 Page 54 of 112 FISSION PRODUCT BARRIERS PWR TABLE 5-F-3 CONTAINMENT Potential Loss 3. Threshold C This EALthreshold represents a potential loss of containment in that the containment heat removal/depressurization system (e.g., containment sprays, ice condenser fans, etc., but not including containment venting strategies) are either lost or performing in a degraded manner, as indicated by containment pressure greater than the setpoint at which the equipment was supposed to have actuated.
Reference Documents
: 1. Unit 1 OP-1105.003, Engineering Safeguards Actuation System
: 2. Unit 1 SAR Sections 1.4.43, 5.2.1.2.1, 14.2.2.5.5.1 (reactor building design pressure)
: 3. Unit 1 SAR Section 6.6 (Post-Loss of Coolant Accident Hydrogen Control)
: 4. Unit 1 TS Table 3.3.5-1
: 5. Unit 2 SAR Section 6.2.5 (Combustible Gas Control In Containment)
: 6. Unit 2 SAR Section 3.8.1.3.1.D (Containment Design Pressure)
: 7. Unit 2 TS Table 3.3-4
: 8. Regulatory Guide 1.7, Control of Combustible Gas Concentrations in Containment Following a Loss-of-Coolant Accident, Rev. 2 1978
: 23. Core Exit Thermocouple Readings (CNB2)
Loss: NoneNot Applicable Potential Loss:
A.1. a. CETs Core Exit Thermocouples in excess of indicate > 1200 (site specific) &#xba; F AND
: b. Restoration procedures not effective within 15 minutes.
OR B.2..a. a. CETsCore exit thermocouples indicate > 700 in excess of (site-specific) &#xba; F AND
: 2.      b. b. RVLMS indicates:Reactor vessel level below (site specific level).
Unit 1: Levels 1 through 9 DRY Unit 2: Levels 1 through 7 DRY AND
: c. c. Restoration procedures not effective within 15 minutes.
Basis:
54 to 0CAN121102 Page 55 of 112 FISSION PRODUCT BARRIERS PWR TABLE 5-F-3 CONTAINMENT Loss
[Core Exit Thermocouple Readings are included in addition to the Critical Safety Functions to include conditions when the CSFs may not be in use (initiation after SI is blocked) or plants which do not have a CSF scheme.]
There is no Loss EALthreshold associated with this item.
Potential Loss The conditions in these EALthresholds represent an IMMINENT core melt sequence which, if not corrected, could lead to vessel failure and an higherincreased potential for containment failure. In conjunction with the Core Cooling and RCS Leakage criteria in the Fuel and RCS barrier columns, this threshold would result in the declaration of a General Emergency -- loss of two barriers and the potential loss of a third. If the function restoration procedures are ineffective, there is no "success" path.
The function restoration procedures are those emergency operating procedures that address the recovery of the core cooling critical safety functions. The procedure is considered effective if the temperature is droppingdecreasing or if the vessel water level is risingincreasing.
[For units using the CSF status trees, a direct correlation to those status trees can be made if the effectiveness of the restoration procedures is also evaluated as stated below.] [Severe accident analyses (e.g., NUREG-1150) have concluded that function restoration procedures can arrest core degradation within the reactor vessel in a significant fraction of the core damage scenarios, and that the likelihood of containment failure is very small in these events. Given this, it is appropriate to provide a reasonable period to allow function restoration procedures to arrest the core melt sequence.] Whether or not the procedures will be effective should be apparent within 15 minutes. The SM/TSC Director/EOF DirectorEmergency Director should make the declaration as soon as it is determined that the procedures have been, or will be ineffective.
Potential Loss Threshold B
[The reactor vessel level chosen should be consistent with the emergency response guides applicable to the facility.]
: 34. SG Secondary Side Release With Primary-to-Secondary Leakage (CNB3)
Loss:
55 to 0CAN121102 Page 56 of 112 FISSION PRODUCT BARRIERS PWR TABLE 5-F-3 CONTAINMENT A. RUPTURED SG is also FAULTED outside of containment B.. 1a. Primary-to-sSecondary leakrate > greater than 10 gpm AND 2b. UNISOLABLE steam release from affected steam generatorSG to the environment Potential Loss: NoneNot Applicable Basis:
Thise loss EALthreshold recognizes that SG tube leakage can represent a bypass of the cContainment barrier as well as a loss of the RCS barrier.
Users should realize that the two loss thresholds could be considered redundant. This was recognized during the development process. The inclusion of an threshold that uses Emergency Procedure commonly used terms like RUPTURED and FAULTED adds to the ease of the classification process and has been included based on this human factor concern.
This EAL threshold results in a NUE NOUE for smaller breaks that; (1) do not exceed the Normal Makeup Capacity for Unit 1 or the capacity of one charging pump in the normal charging lineup for Unit 2 the normal charging capacity EAL threshold in RCS leak rate barrier Potential Loss threshold, or (2) do not result in ECCS actuation in RCS SG tube rupture barrier Loss threshold.
For larger breaks, RCS barrier threshold criteria would result in an Alert. For SG tube ruptures which may involve multiple steam generators or UNISOLABLEunisolable secondary line breaks, this condition threshold would exist in conjunction with RCS barrier conditionthresholds and would result in a Site Area Emergency. Escalation to General Emergency would be based on "Potential Loss" of the Fuel Clad Barrier.
Loss 1.Threshold A This EALthreshold addresses the condition in which a RUPTURED steam generator is also FAULTED. This condition represents a bypass of the RCS and containment barriers and is a subset of the second threshold. In conjunction with RCS leak rate barrier loss EAL RCB2threshold, this would always result in the declaration of a Site Area Emergency.
Loss 2.Threshold B This EALthreshold addresses SG tube leaks that exceed 10 gpm in conjunction with an UNISOLABLE release path to the environment from the affected steam generator. The threshold for establishing the UNISOLABLE secondary side release is intended to be a prolonged release of radioactivity from the RUPTURED steam generator directly to the environment. This could be expected to occur when the main condenser is unavailable to accept the contaminated steam (i.e., SG tube rupture with concurrent loss of off-site power and the RUPTURED steam generator is required for plant cooldown or a stuck open relief valve). The time it takes to isolate a SG with 56 to 0CAN121102 Page 57 of 112 FISSION PRODUCT BARRIERS PWR TABLE 5-F-3 CONTAINMENT tube leakage > 10 gpm in accordance with plant specific EOPs is not considered a prolonged release. In this case the SG with tube leakage > 10 gpm with a concurrent loss of offsite power is normally steamed to the environment in a controlled manner to achieve and maintain a RCS Hot Leg temperature below that which corresponds to the Main Steam Safety Valve relief settings.
However, if the SG cannot be isolated or if both SGs have tube leakage > 10 gpm, a prolonged release will likely be necessary to support plant cooldown. If the main condenser is available, there may be releases via air ejectors, gland seal exhausters, and other similar controlled, and often monitored, pathways. These pathways do not meet the intent of an UNISOLABLE release path to the environment. These minor releases are assessed using Abnormal Radiation Levels /
Radiological Effluent ICs (TAB A).
Potential Loss
[The leakage threshold for this threshold has been increased with Revision 3. In the earlier revision, the threshold was leakage greater than T/S allowable. Since the prior revision, many plants have implemented reduced steam generator T/S limits (e.g., 150 gpd) as a defense in depth associated with alternate steam generator plugging criteria. The 150 gpd threshold is deemed too low for use as an emergency threshold. A pressure boundary leakage of 10 gpm was used as the threshold in IC SU5, RCS Leakage, and is deemed appropriate for this threshold.]
There is no Potential Loss EAL associated with this item.
: 45. Containment Isolation Failure or Bypass (CNB4)
Loss:
A. 1a. A.Failure of all valves in any one line to close UNISOLABLE breach of containment AND 2b. Direct downstream pathway to the environment exists after containment isolation signal Potential Loss: NoneNot Applicable Basis:
Loss This EALthreshold addresses incomplete containment isolation that allows a direct release to the environment. A breach of containment has also occurred if an inboard and outboard pair of isolation valves fails to close on an automatic actuation signal or from a manual action in the Control Room and opens a release path to the environment.
57 to 0CAN121102 Page 58 of 112 FISSION PRODUCT BARRIERS PWR TABLE 5-F-3 CONTAINMENT The breach is not isolable from the Control Room if an attempt for isolation from the Control Room has been made and was unsuccessful. An attempt for isolation should be made prior to the accident classification. If isolable upon identification then this Initiating Condition is not applicable.
The use of the modifier direct in defining the release path discriminates against release paths through interfacing liquid systems. The existence of an in-line charcoal filter does not make a release path indirect since the filter is not effective at removing fission product noble gases.
Typical filters have an efficiency of 95-99% removal of iodine. Given the magnitude of the core inventory of iodine, significant releases could still occur.
In addition, since the fission product release would be driven by boiling in the reactor vessel, the high humidity in the release stream can be expected to render the filters ineffective in a short period.
Potential Loss There is no Potential Loss EALthreshold associated with this item.
: 56. Containment Radiation Monitoring (CNB5)
Loss: NoneNot Applicable Potential Loss:
A. Containment radiation monitor reading greater than (site specific value). Containment high range rad monitor reading > 4000 R/hr Basis:
Loss There is no Loss EALthreshold associated with this item.
Potential Loss The 4000 R/hrsite specific reading on the containment high range radiation monitors (RE-8060 or RE-8061 for Unit 1, 2RE-8925-1 or 2RE-8925-2 for Unit 2) is a value which indicates significant fuel damage well in excess of the EALthresholds associated with both loss of Fuel Clad and loss of RCS barriers. AAs stated in Section 3.8, a major release of radioactivity requiring off-site protective actions from core damage is not possible unless a major failure of fuel cladding allows radioactive material to be released from the core into the reactor coolant.
Regardless of whether containment is challenged, this amount of activity in containment, if released, could have such severe consequences that it is prudent to treat this as a potential loss of containment, such that a General Emergency declaration is warranted.
58 to 0CAN121102 Page 59 of 112 FISSION PRODUCT BARRIERS PWR TABLE 5-F-3 CONTAINMENT
[NUREG-1228, "Source Estimations During Incident Response to Severe Nuclear Power Plant Accidents," indicates that such conditions do not exist when the amount of clad damage is less than 20%. Unless there is a (site specific) analysis justifying a higher value, it is recommended that a radiation monitor reading corresponding to 20% fuel clad damage be specified here.]
Because the monitor reading exceeds the readings for Fuel Clad Barrier loss in FCB4 and RCS Barrier loss in RCB3, the SM/TSC Director/EOF Director should declare a General Emergency when this value on the Containment High Range Rad Monitor is exceeded as a loss of two barriers (fuel clad and RCS) and potential loss of the third (containment).
Reference Documents:
: 1. ANO Calculation 03-E-0002-01, Radiation Monitor EAL Setpoints for Fission Product Barrier Degradation
: 2. NUREG 1228, Source Term Estimation During Incident Response to Severe Nuclear Power Plant Accidents
: 67. Other Site Specific Indications (CNB6)
Elevated readings on the following radiation monitors that indicate loss or potential loss of the Containment barrier:
MONITORS - UNIT 1 RX-9820     Containment Purge RX-9825     Radwaste Area RX-9830     Fuel Handling Area RX-9835     Emergency Penetration Room MONITORS - UNIT 2 2RX-Containment Purge 9820 2RX-Radwaste Area 9825 2RX-Fuel Handling Area 9830 2RX-Emergency Penetration Room 9835 2RX-        Post Accident Sampling 9840        Building 2RX-Aux. Building Extension 9845 59 to 0CAN121102 Page 60 of 112 FISSION PRODUCT BARRIERS PWR TABLE 5-F-3 CONTAINMENT Basis:
This EAL covers other indications that may unambiguously indicate the loss or potential loss of the containment barrier.[This EAL should cover other (site-specific) indications that may unambiguously indicate loss or potential loss of the containment barrier, including indications from area or ventilation monitors in containment annulus or other contiguous buildings. If site emergency operating procedures provide for venting of the containment during an emergency as a means of preventing catastrophic failure, a Loss EAL should be included for the containment barrier. This EAL should be declared as soon as such venting is IMMINENT. Containment venting as part of recovery actions is classified in accordance with the radiological effluent ICs.]
: 78. Emergency Director Judgment (CNB7)
Loss: Any condition in the opinion of the SM/TSC Director/EOF DirectorEmergency Director that indicates Loss or Potential Loss of the Containment Barrier.
Potential Loss: Any condition in the opinion of the Emergency Director that indicates Potential Loss of the Fuel Clad Barrier.
Basis:
This EALThese thresholds addresses any other factors that are to be used by the SM/TSC Director/EOF Director Emergency Director in determining whether the Containment barrier is lost or potentially lost. In addition, the inability to monitor the barrier should also be incorporated in this EAL threshold as a factor in SM/TSC Director/EOF Director Emergency Director judgment that the barrier may be considered lost or potentially lost.
The Containment barrier should not be declared lost or potentially lost based on exceeding Technical Specification action statement criteria, unless there is an event in progress requiring mitigation by the Containment barrier. When no event is in progress (Loss or Potential Loss of either Fuel Clad and/or RCS) the Containment barrier status is addressed by Technical Specifications.
60 to 0CAN121102 Page 61 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HU61 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT Natural or destructive phenomena affecting the PROTECTED AREA Operating Mode Applicability: All Example Emergency Action Level: (1 or 2 or 3 or 4 or 5 or 6)
: 1. Seismic event identified by anyANY 2 of the following:
* Seismic event confirmed by annunciation of the 0.01g acceleration alarm (site specific indication or method)
* Earthquake felt in plant
* National Earthquake Center OR
: 2. Tornado striking within PROTECTED AREA boundary or high winds > greater than67(site specific mph).
OR
: 3. Internal flooding that has the potential to affect safety related equipment required by Technical Specifications for the current operating mode in anyANY of the structures or areas in Table H1.following areas:
(site specific area list) 61 to 0CAN121102 Page 62 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HU61 Table H1 Unit 1                                            Unit 2 CA-1 & HP Office Area                                  2A3 Room Condensate Demineralizer Room                          2A4, 2D02, & East Battery Room Corridor 98                                            2B53 Room Fire Area C                                            2B63 Room Lower North Electrical Penetration Room                2B9/2B10 Room (LNEPR)                                                2Y11/13 Equipment Room Lower South Electrical Equipment Room (LSEER)          Auxiliary Building 317 General Access
 / Air Compressor Room Auxiliary Building 335' Lower South Electrical Penetration Room Auxiliary Building 354' (LSEPR)
B Engineered Safeguards Features (ESF)
Lower South Piping Penetration Room (LSPPR)
Room Main Steam Isolation Violation (MSIV) Room Corridor Behind Door 340 North Engineered Safeguards (ES) SWGR Room Turbine Building (A4) 2A1, 2A2, 2H1, 2H2 Area South ES SWGR Room                                        354' West wall of Demineralizer area Turbine Building                                          368' West Heater Deck north of north A1, A2, H1, H2 SWGR area                                 Switchgear (SWGR) Room (2A3) and 354' Bowling Alley north end west of                     East of LNEPR Breathing Air compressor room                    Intake Structure 354' or 366' 368' West Heater Deck from LSEER (orange LNEPR door) along east wall of ES SWGR Rooms to Corridor 98 door.                                LSEPR Upper North Electrical Penetration Room                Motor-Generator (MG) Set Room (UNEPR) / Hot Tool Room / Decon Room                   Steam Pipe Area Upper South Electrical Penetration Room                Hot Machine Shop (USEPR)                                                UNEPR, UNPPR, LNPPR, USPPR Upper South Piping Penetration Room (USPPR)
OR
: 4. Turbine failure resulting in casing penetration or damage to turbine or generator seals.
OR
: 5. (Site specific occurrences affecting the PROTECTED AREA).
: 5. Lake Dardanelle level < 335 feet.
OR 62 to 0CAN121102 Page 63 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HU61
: 6. Lake Dardanelle level > 345 feet.
Basis:
These EALs are categorized on the basis of the occurrence of an event of sufficient magnitude to be of concern to plant operators.
EAL #1 Damage may be caused to some portions of the site, but should not affect ability of safety functions to operate.
As defined in the EPRI-sponsored Guidelines for Nuclear Plant Response to an Earthquake, dated October 1989, a "felt earthquake" is: An earthquake of sufficient intensity such that: (a) the vibratory ground motion is felt at the nuclear plant site and recognized as an earthquake based on a consensus of control room operators on duty at the time, and (b) for plants with operable seismic instrumentation, the seismic switches of the plant are activated.
[For most plants with seismic instrumentation, the seismic switches are set at an acceleration of about 0.01g. This EAL should be developed on site specific basis. The method of detection can be based on instrumentation, validated by a reliable source, or operator assessment.]
The National Earthquake Center can confirm if an earthquake has occurred in the area of the plant.
EAL #2 This EAL is based on a tornado striking (touching down) or high winds within the PROTECTED AREA.
[The high wind value should be based on site specific FSAR design basis as long as it is within the range of the instrumentation available for wind speed.]
The high wind value in EAL #2 is conservatively based on the SAR design basis for Unit 1 of 67 mph. Unit 2 Design basis is 80 mph.
Escalation of this emergency classification level, if appropriate, would be based on VISIBLE DAMAGE, or by other in plant conditions, via HA61.
EAL #3 This EAL addresses the effect of internal flooding caused by events such as component failures, equipment misalignment, or outage activity mishaps.
63 to 0CAN121102 Page 64 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HU61
[The site specific areas include those areas that contain systems required for safe shutdown of the plant, which are not designed to be partially or fully submerged. The plants IPEEE may provide insight into areas to be considered when developing this EAL.]
Escalation of this emergency classification level, if appropriate, would be based VISIBLE DAMAGE via HA61, or by other plant conditions.
EAL #4 This EAL addresses main turbine rotating component failures of sufficient magnitude to cause observable damage to the turbine casing or to the seals of the turbine generator. Generator seal damage observed after generator purge does not meet the intent of this EAL because it did not impact normal operation of the plant.
Of major concern is the potential for leakage of combustible fluids (lubricating oils) and gases (hydrogen cooling) to the plant environs. Actual FIRES and flammable gas build up are appropriately classified via HU42 and HU53.
This EAL is consistent with the definition of an NUE NOUE while maintaining the anticipatory nature desired and recognizing the risk to non-safety related equipment.
Escalation of this emergency classification level, if appropriate, would be to HA61 based on damage done by PROJECTILES generated by the failure or by the radiological releases for a BWR, or in conjunction with a steam generator tube rupture, for a PWR. These latter events would be classified by the radiological (A) ICs or Fission Product Barrier (F) ICs.
EAL #5 This EAL addresses other site specific phenomena (such as hurricane, flood, or seiche) that can also be precursors of more serious events.
[Sites subject to severe weather as defined in the NUMARC station blackout initiatives should include an EAL based on activation of the severe weather mitigation procedures (e.g.,
precautionary shutdowns, diesel testing, staff call-outs, etc.).]
EALs #5 and #6 EALs #5 and #6 are based on the levels of Lake Dardanelle at which the site will take specific action to reduce the impact of the lake level on plant safety by initiating plant shutdown.
Reference Documents:
: 1. OP-1203.025, Natural Emergencies
: 2. OP-2203.008, Natural Emergencies
: 3. Unit 1 FSAR
: 4. Unit 2 FSAR 64 to 0CAN121102 Page 65 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HU42 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT FIRE within the PROTECTED AREA not extinguished within 15 minutes of detection or EXPLOSION within the PROTECTED AREA Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2)
Note: The SMEmergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the duration has exceeded, or will likely exceed, the applicable time.
: 1.       FIRE in any Table H1 structure or area not extinguished within 1) within 15 minutes of Ccontrol Rroom notification or 2) within 15 minutes of verification of a Ccontrol Rroom FIRE alarm in ANY of the following areas: (site specific area list) 65 to 0CAN121102 Page 66 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HU42 Table H1 Unit 1                                          Unit 2 CA-1 & HP Office Area                                 2A3 Room Condensate Demineralizer Room                         2A4, 2D02, & East Battery Room Corridor 98                                           2B53 Room Fire Area C                                           2B63 Room Lower North Electrical Penetration Room               2B9/2B10 Room (LNEPR)                                               2Y11/13 Equipment Room Lower South Electrical Equipment Room (LSEER)         Auxiliary Building 317 General Access
 / Air Compressor Room Auxiliary Building 335' Lower South Electrical Penetration Room Auxiliary Building 354' (LSEPR)
B Engineered Safeguards Features (ESF)
Lower South Piping Penetration Room (LSPPR)
Room Main Steam Isolation Violation (MSIV) Room Corridor Behind Door 340 North Engineered Safeguards (ES) SWGR Room Turbine Building (A4) 2A1, 2A2, 2H1, 2H2 Area South ES SWGR Room                                       354' West wall of Demineralizer area Turbine Building                                         368' West Heater Deck north of north A1, A2, H1, H2 SWGR area                                Switchgear (SWGR) Room (2A3) and 354' Bowling Alley north end west of                    East of LNEPR Breathing Air compressor room                   Intake Structure 354' or 366' 368' West Heater Deck from LSEER (orange LNEPR door) along east wall of ES SWGR Rooms to Corridor 98 door.                               LSEPR Upper North Electrical Penetration Room               Motor-Generator (MG) Set Room (UNEPR) / Hot Tool Room / Decon Room                  Steam Pipe Area Upper South Electrical Penetration Room               Hot Machine Shop (USEPR)                                               UNEPR, UNPPR, LNPPR, USPPR Upper South Piping Penetration Room (USPPR)
OR
: 2. EXPLOSION within the PROTECTED AREA.
Basis:
This ICEAL addresses the magnitude and extent of FIRES or EXPLOSIONS that may be potentially significant precursors of damage to safety systems. It addresses the FIRE /
EXPLOSION, and not the degradation in performance of affected systems that may result.
66 to 0CAN121102 Page 67 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HU42 As used here, detection is visual observation and report by plant personnel or sensor alarm indication.
EAL #1 The 15 minute time period begins with a credible notification that a FIRE is occurring, or indication of a fire detection system alarm/actuation. Verification of a fire detection system alarm/actuation includes actions that can be taken within the Ccontrol Rroom or other nearby site specific location to ensure that it is not spurious. An alarm is assumed to be an indication of a FIRE unless it is disproved within the 15 minute period by personnel dispatched to the scene. In other words, a personnel report from the scene may be used to disprove a sensor alarm if received within 15 minutes of the alarm, but shall not be required to verify the alarm.
The intent of this 15 minute duration is to size the FIRE and to discriminate against small FIRES that are readily extinguished (e.g., smoldering waste paper basket).
[The site specific list should be limited and applies to buildings and areas in actual contact with or immediately adjacent to VITAL AREAS or other significant buildings or areas. The intent of this IC is not to include buildings (i.e., warehouses) or areas that are not in actual contact with or immediately adjacent to VITAL AREAS. This excludes FIRES within administration buildings, waste-basket FIRES, and other small FIRES of no safety consequence. Immediately adjacent implies that the area immediately adjacent contains or may contain equipment or cabling that could impact equipment located in VITAL AREAS or the fire could damage equipment inside VITAL AREAS or that precludes access to VITAL AREAS.]
EAL #2 This EAL addresses only those EXPLOSIONS of sufficient force to damage permanent structures or equipment within the PROTECTED AREA.
No attempt is made to assess the actual magnitude of the damage. The occurrence of the EXPLOSION is sufficient for declaration.
The SMEmergency director also needs to consider any security aspects of the EXPLOSION, if applicable.
Escalation of this emergency classification level, if appropriate, would be based on HA42.
67 to 0CAN121102 Page 68 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HU53 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT Release of toxic, corrosive, asphyxiant, or flammable gases deemed detrimental to NORMAL PLANT OPERATIONS.
Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2)
: 1. Toxic, corrosive, asphyxiant or flammable gases in amounts that have or could adversely affect NORMAL PLANT OPERATIONS.
OR
: 2. Report by Llocal, Ccounty or Sstate officials for evacuation or sheltering of site personnel based on an offsite event.
Basis:
This ICEAL is based on the release of toxic, corrosive, asphyxiant or flammable gases of sufficient quantity to affect NORMAL PLANT OPERATIONS.
The fact that SCBAs may be worn does not eliminate the need to declare the event.
This IC is not intended to require significant assessment or quantification. It assumes an uncontrolled process that has the potential to affect plant operations. This would preclude small or incidental releases, or releases that do not impact structures needed for plant operation.
An asphyxiant is a gas capable of reducing the level of oxygen in the body to dangerous levels.
Most commonly, asphyxiants work by merely displacing air in an enclosed environment. This reduces the concentration of oxygen below the normal level of around 19%, which can lead to breathing difficulties, unconsciousness or even death.
Escalation of this emergency classification level, if appropriate, would be based on HA53.
68 to 0CAN121102 Page 69 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HU14 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT Confirmed SECURITY CONDITION or threat which indicates a potential degradation in the level of safety of the plant.
Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2 or 3)
: 1. A SECURITY CONDITION that does notNOT involve a HOSTILE ACTION as reported by theANO Security Shift Supervision(site specific security shift supervision).
OR
: 2. A credible site specific security threat notification.
OR
: 3. A validated notification from NRC providing information of an aircraft threat.
Basis:
NOTENote: Timely and accurate communication between Security Shift Supervision and the Control Room is crucial for the implementation of effective Security EALs.
Security events which do not represent a potential degradation in the level of safety of the plant are reported under 10 CFR 73.71 or in some cases under 10 CFR 50.72. Security events assessed as HOSTILE ACTIONS are classifiable under HA14, HS14 and HG1.
A higher initial classification could be made based upon the nature and timing of the security threat and potential consequences. CThe licensee shall consideration shall be given to upgrading the emergency response status and emergency classificationlevel in accordance with the sites Safeguards Contingency Plan and Emergency Plan.
EAL #1 The Security Shift Supervisor isReference is made to site specific security shift supervision because these individuals are the designated individualpersonnel on-site qualified and trained to confirm that a security event is occurring or has occurred. Training on security event classification confirmation is closely controlled due to the strict secrecy controls placed on the plant Safeguards Contingency Plan.
This EALthreshold is based on the Safeguards Contingency Plansite specific security plans. The Safeguards Contingency Plan isSite specific Safeguards Contingency Plans are based on guidance provided inby NEI 03-12.
69 to 0CAN121102 Page 70 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HU14 EAL #2 This EALthreshold is included to ensure that appropriate notifications for the security threat are made in a timely manner. This includes information of a credible threat. Only the plant to which the specific threat is made need declare the NUENotification of an UnusualEvent.
The determination of credible is made through use of information found in thesite specific Safeguards Contingency Plan.
EAL #3 The intent of this EAL is to ensure that notifications for the aircraft threat are made in a timely manner and that Offsite Response Organizations and plant personnel are at a state of heightened awareness regarding the credible threat. It is not the intent of this EAL to replace existing non-hostile related EALs involving aircraft.
This EAL is met when a plant receives information regarding an aircraft threat from NRC.
Validation is performed by calling the NRC or by other approved methods of authentication. Only the plant to which the specific threat is made need declare the NUEUnusual Event.
The NRC Headquarters Operations Officer (HOO) will communicate to the licensee if the threat involves an airliner (airliner is meant to be a large aircraft with the potential for causing significant damage to the plant). The status and size of the plane may be provided by NORAD through the NRC.
Escalation to Alert via HA1 emergency classification level would be via HA4 would be appropriate if the threat involves an airliner within 30 minutes of the plant.
70 to 0CAN121102 Page 71 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HU25 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT Other conditions exist which in the judgment of the SMEmergency Director warrant declaration of an NUENOUE.
Operating Mode Applicability: All Example Emergency Action Level(s):
: 1. Other conditions exist which in the judgment of the SMEmergency Director indicate that events are in progress or have occurred which 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 requiring offsite response or monitoring are expected unless further degradation of safety systems occurs.
Basis:
This EAL addresses unanticipated conditions not addressed explicitly elsewhere but that warrant declaration of an emergency because conditions exist which are believed by the SMEmergency Director to fall under the NUENOUE emergency classification level.
71 to 0CAN121102 Page 72 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HA61 Initiating Condition - ALERT Natural or destructive phenomena affecting VITAL AREAS Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2 or 3 or 4 or 5 or 6)
: 1. a. Seismic event >greater than Operating Basis Earthquake (OBE) as indicated by annunciation of the 0.1g acceleration alarm(site specific seismic instrumentation) reading (site specific OBE limit).
AND
: b. Earthquake confirmed by anyANY of the following:
Earthquake felt in plant National Earthquake Center Control Room indication of degraded performance of systems required for the safe shutdown of the plant OR
: 2. Tornado striking or high winds >greater than 67 mph(site specific mph) resulting in VISIBLE DAMAGE to anyANY of the following structures/equipment containing safety systems or components or OR Ccontrol Rroom indication of degraded performance of those safety systems:
(site specific structure list)
Reactor Building Intake Structure Ultimate Heat Sink BWST/RWT Auxiliary Building Turbine Building QCST Control Room Startup Transformers Diesel Fuel Vault OR 72 to 0CAN121102 Page 73 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HA61
: 3. Internal flooding in anyANY of the following areas resulting in an electrical shock hazard that precludes access to operate or monitor safety equipment orOR Ccontrol Rroom indication of degraded performance of those safety systems:
(site specific area list)
Intake Structure Ultimate Heat Sink BWST/RWT Auxiliary Building Turbine Building QCST Control Room Startup Transformers Diesel Fuel Vault OR
: 4. Turbine failure-generated PROJECTILES resulting in VISIBLE DAMAGE to or penetration of anyANY of the following structures/equipment in Table H2 containing safety systems or components orOR Ccontrol Rroom indication of degraded performance of those safety systems:
(site specific structure list)
Table H2 Reactor Building         Turbine Building Intake Structure              QCST Ultimate Heat Sink         Control Room BWST/RWT           Startup Transformers Auxiliary Building       Diesel Fuel Vault OR
: 5. Lake Dardanelle level < 335 feet and Emergency Cooling Pond inoperable.
OR
: 65. Vehicle crash resulting in VISIBLE DAMAGE to anyANY of thefollowing structures/equipment in Table H2 containing safety systems or components orOR Ccontrol Rroom indication of degraded performance of those safety systems:
(site specific structure list) 73 to 0CAN121102 Page 74 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HA61 Table H2 Reactor Building          Turbine Building Intake Structure               QCST Ultimate Heat Sink          Control Room BWST/RWT            Startup Transformers Auxiliary Building       Diesel Fuel Vault
: 6. (Site specific occurrences) resulting in VISIBLE DAMAGE to ANY of the following structures containing safety systems or components OR control room indication of degraded performance of those safety systems:
(site specific structure list)
Basis:
These EALs escalate from HU61 in that the occurrence of the event has resulted in VISIBLE DAMAGE to plant structures or areas containing equipment necessary for a safe shutdown, or has caused damage to the safety systems in those structures evidenced by Ccontrol Rroom indications of degraded system response or performance. The occurrence of VISIBLE DAMAGE and/or degraded system response is intended to discriminate against lesser events. The initial report should not be interpreted as mandating a lengthy damage assessment prior to classification. No attempt is made in this EAL to assess the actual magnitude of the damage. The significance here is not that a particular system or structure was damaged, but rather, that the event was of sufficient magnitude to cause this degradation.
Escalation of this emergency classification level, if appropriate, would be based on System Malfunction (S) ICs.
EALs #2 - #5
[These EALs should specify site specific structures or areas that contain safety system, or component and functions required for safe shutdown of the plant. Site specific Safe Shutdown Analysis should be consulted for equipment and plant areas required to establish or maintain safe shutdown.]
EAL #1 Seismic events of this magnitude can result in a VITAL AREA being subjected to forces beyond design limits, and thus damage may be assumed to have occurred to plant safety systems.
[This threshold should be based on site specific FSAR design basis. See EPRI-sponsored "Guidelines for Nuclear Plant Response to an Earthquake", dated October 1989, for information on seismic event categories.]
74 to 0CAN121102 Page 75 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HA61 The National Earthquake Center can confirm if an earthquake has occurred in the area of the plant.
EAL #2 This EAL is based on a tornado striking (touching down) or high winds that have caused VISIBLE DAMAGE to structures containing functions or systems required for safe shutdown of the plant.
The high wind value in EAL #2 is conservatively based on the SAR design basis for Unit 1 of 67 mph. Unit 2 Design basis is 80 mph.
[The high wind value should be based on site specific FSAR design basis as long as it is within the range of the instrumentation available for wind speed.]
EAL #3 This EAL addresses the effect of internal flooding caused by events such as component failures, equipment misalignment, or outage activity mishaps. It is based on the degraded performance of systems, or has created industrial safety hazards (e.g., electrical shock) that preclude necessary access to operate or monitor safety equipment. The inability to access, operate or monitor safety equipment represents an actual or substantial potential degradation of the level of safety of the plant.
Flooding as used in this EAL describes a condition where water is entering the room faster than installed equipment is capable of removal, resulting in a rise of water level within the room.
Classification of this EAL should not be delayed while corrective actions are being taken to isolate the water source.
[The site specific areas include those areas that contain systems required for safe shutdown of the plant, which are not designed to be partially or fully submerged. The plants IPEEE may provide insight into areas to be considered when developing this EAL.]
EAL #4 This EAL addresses the threat to safety related equipment imposed by PROJECTILEs generated by main turbine rotating component failures. Therefore, this EAL is consistent with the definition of an ALERT in that the potential exists for actual or substantial potential degradation of the level of safety of the plant.
[The site specific list of areas should include all areas containing safety structure, system, or component, their controls, and their power supplies.]
EAL #5 This EAL addresses vehicle crashes within the PROTECTED AREA that results in VISIBLE DAMAGE to VITAL AREAS or indication of damage to safety structures, systems, or components containing functions and systems required for safe shutdown of the plant.
75 to 0CAN121102 Page 76 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HA61 EAL #6 This EAL addresses other site specific phenomena that result in VISIBLE DAMAGE to VITAL AREAS or results in indication of damage to safety structures, systems, or components containing functions and systems required for safe shutdown of the plant (such as hurricane, flood, or seiche) that can also be precursors of more serious events.
[Sites subject to severe weather as defined in the NUMARC station blackout initiatives should include an EAL based on activation of the severe weather mitigation procedures (e.g.,
precautionary shutdowns, diesel testing, staff call-outs, etc.).]
EAL #6 addresses site specific phenomena which has the potential for the loss of primary and secondary heat sink.
Reference Documents:
: 1. OP-1203.025, Natural Emergencies
: 2. OP-2203.008, Natural Emergencies
: 3. Unit 1 FSAR
: 4. Unit 2 FSAR 76 to 0CAN121102 Page 77 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HA42 Initiating Condition - ALERT FIRE or EXPLOSION affecting the operability of plant safety systems required to establish or maintain safe shutdown Operating Mode Applicability: All Example Emergency Action Level(s):
: 1. FIRE or EXPLOSION resulting in VISIBLE DAMAGE to anyANY Table H1of the following structures or area containing safety systems or components orOR Ccontrol Rroom indication of degraded performance of those safety systems.
(site specific structure list)
Table H1 Unit 1                                        Unit 2 CA-1 & HP Office Area                              2A3 Room Condensate Demineralizer Room                      2A4, 2D02, & East Battery Room Corridor 98                                        2B53 Room Fire Area C                                        2B63 Room Lower North Electrical Penetration Room            2B9/2B10 Room (LNEPR)                                            2Y11/13 Equipment Room Lower South Electrical Equipment Room (LSEER)      Auxiliary Building 317 General Access
  / Air Compressor Room Auxiliary Building 335' Lower South Electrical Penetration Room Auxiliary Building 354' (LSEPR)
B Engineered Safeguards Features (ESF)
Lower South Piping Penetration Room (LSPPR)
Room Main Steam Isolation Violation (MSIV) Room Corridor Behind Door 340 North Engineered Safeguards (ES) SWGR Room Turbine Building (A4) 2A1, 2A2, 2H1, 2H2 Area South ES SWGR Room                                    354' West wall of Demineralizer area Turbine Building                                      368' West Heater Deck north of north A1, A2, H1, H2 SWGR area                             Switchgear (SWGR) Room (2A3) and 354' Bowling Alley north end west of                 East of LNEPR Breathing Air compressor room                Intake Structure 354' or 366' 368' West Heater Deck from LSEER (orange LNEPR door) along east wall of ES SWGR Rooms to Corridor 98 door.                            LSEPR Upper North Electrical Penetration Room            Motor-Generator (MG) Set Room (UNEPR) / Hot Tool Room / Decon Room               Steam Pipe Area Upper South Electrical Penetration Room            Hot Machine Shop (USEPR)                                            UNEPR, UNPPR, LNPPR, USPPR Upper South Piping Penetration Room (USPPR) 77 to 0CAN121102 Page 78 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HA42 Basis:
VISIBLE DAMAGE is used to identify the magnitude of the FIRE or EXPLOSION and to discriminate against minor FIRES and EXPLOSIONS.
The reference to structures or areas containing safety systems or components is included to discriminate against FIRES or EXPLOSIONS in areas having a low probability of affecting safe operation. The significance here is not that a safety system was degraded but the fact that the FIRE or EXPLOSION was large enough to cause damage to these systems.
The use of VISIBLE DAMAGE should not be interpreted as mandating a lengthy damage assessment prior to classification. The declaration of an Alert and the activation of the Technical Support Center will provide the SM/TSC Director/EOF DirectorEmergency Director with the resources needed to perform detailed damage assessments.
The SM/TSC Director/EOF DirectorEmergency Director also needs to consider any security aspects of the EXPLOSION.
[This EAL should specify site specific structures or areas that contain safety system, or component and functions required for safe shutdown of the plant. Site specific Safe Shutdown Analysis should be consulted for equipment and plant areas required to establish or maintain safe shutdown.]
Escalation of this emergency classification level, if appropriate, will be based on System Malfunction (S)s, Fission Product Barrier Degradation (F) or Abnormal Radiation Levels /
Radiological Effluent (A) ICs.
78 to 0CAN121102 Page 79 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HA53 Initiating Condition - ALERT Access to a VITAL AREA is prohibited due to toxic, corrosive, asphyxiant or flammable gases which jeopardize operation of operable equipment required to maintain safe operations or safely shutdown the reactor Operating Mode Applicability: All Example Emergency Action Level(s):
Note: If the equipment in the stated area was already inoperable, or out of service, before the event occurred, then this EAL should not be declared as it will have no adverse impact on the ability of the plant to safely operate or safely shutdown beyond that already allowed by Technical Specifications at the time of the event.
: 1. Access to a VITAL AREA is prohibited due to toxic, corrosive, asphyxiant or flammable gases which jeopardize operation of systems required to maintain safe operations or safely shutdown the reactor.
Basis:
Gases in a VITAL AREA can affect the ability to safely operate or safely shutdown the reactor.
The fact that SCBAs may be worn does not eliminate the need to declare the event.
Declaration should not be delayed for confirmation from atmospheric testing if the atmosphere poses an immediate threat to life and health or an immediate threat of severe exposure to gases.
This could be based upon documented analysis, indication of personal ill effects from exposure, or operating experience with the hazards.
If the equipment in the stated area was already inoperable, or out of service, before the event occurred, then this EAL should not be declared as it will have no adverse impact on the ability of the plant to safely operate or safely shutdown beyond that already allowed by Technical Specifications at the time of the event.
An asphyxiant is a gas capable of reducing the level of oxygen in the body to dangerous levels.
Most commonly, asphyxiants work by merely displacing air in an enclosed environment. This reduces the concentration of oxygen below the normal level of around 19%, which can lead to breathing difficulties, unconsciousness or even death.
An uncontrolled release of flammable gasses within a facility structure has the potential to affect safe operation of the plant by limiting either operator or equipment operations due to the potential for ignition and resulting equipment damage/personnel injury. Flammable gasses, such as hydrogen and acetylene, are routinely used to maintain plant systems (hydrogen) or to repair equipment/components (acetylene - used in welding). This EAL assumes concentrations of flammable gasses which can ignite/support combustion.
Escalation of this emergency classification level, if appropriate, will be based on System Malfunction (S)s, Fission Product Barrier Degradation (F) or Abnormal Radiation Levels /
Radioactive Effluent (A) ICs.
79 to 0CAN121102 Page 80 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HA14 Initiating Condition - ALERT HOSTILE ACTION within the OWNER CONTROLLED AREA or airborne attack threat Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2)
: 1. A HOSTILE ACTION is occurring or has occurred within the OWNER CONTROLLED AREA as reported by ANOthe Security Shift Supervision(site specific security shift supervision).
OR
: 2. A validated notification from NRC of an airliner attack threat within 30 minutes of the site.
Basis:
NOTENote: Timely and accurate communication between Security Shift Supervision and the Control Room is crucial for the implementation of effective Security EALs.
These EALs address the contingency for a very rapid progression of events, such as that experienced on September 11, 2001. They are not premised solely on the potential for a radiological release. Rather the issue includes the need for rapid assistance due to the possibility for significant and indeterminate damage from additional air, land or water attack elements.
The fact that the site is under serious attack or is an identified attack target with minimal time available for further preparation or additional assistance to arrive requires a heightened state of readiness and implementation of protective measures that can be effective (such as on-site evacuation, dispersal or sheltering).
EAL #1 This EAL addresses the potential for a very rapid progression of events due to a HOSTILE ACTION. It is not intended to address incidents that are accidental events or acts of civil disobedience, such as small aircraft impact, hunters, or physical disputes between employees within the OWNER CONTROLLED AREA. Those events are adequately addressed by other EALs.
Note that this EAL is applicable for any HOSTILE ACTION occurring, or that has occurred, in the OWNER CONTROLLED AREA. This includes Independent Spent Fuel Storage Installations that may be outside the PROTECTED AREA but still within the OWNER CONTROLLED AREA.
[Although nuclear plant security officers are well trained and prepared to protect against HOSTILE ACTION, it is appropriate for OROs to be notified and encouraged to begin activation (if they do not normally) to be better prepared should it be necessary to consider further actions.]
[If not previously notified by the NRC that the airborne HOSTILE ACTION was intentional, then it would be expected, although not certain, that notification by an appropriate Federal agency would 80 to 0CAN121102 Page 81 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HA14 follow. In this case, appropriate federal agency is intended to be NORAD, FBI, FAA or NRC.
However, the declaration should not be unduly delayed awaiting Federal notification.]
EAL #2 This EAL addresses the immediacy of an expected threat arrival or impact on the site within a relatively short time.
The intent of this EAL is to ensure that notifications for the airliner attack threat are made in a timely manner and that Offsite Response Organizations and plant personnel are at a state of heightened awareness regarding the credible threat. Airliner is meant to be a large aircraft with the potential for causing significant damage to the plant.
This EAL is met when a plant receives information regarding an airliner attack threat from NRC and the airliner is within 30 minutes of the plant. Only the plant to which the specific threat is made need declare the Alert.
The NRC Headquarters Operations Officer (HOO) will communicate to the licensee if the threat involves an airliner (airliner is meant to be a large aircraft with the potential for causing significant damage to the plant). The status and size of the plane may be provided by NORAD through the NRC.
81 to 0CAN121102 Page 82 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HA35 Initiating Condition - ALERT Control room evacuation has been initiated Operating Mode Applicability: All Example Emergency Action Level(s):
: 1. Alternate Shutdown procedure(Site-specific procedure) requires Ccontrol Rroom evacuation:
Unit 1: 1203.002, Alternate Shutdown Unit 2: 2203.014, Alternate Shutdown Basis:
With the Ccontrol Rroom evacuated, additional support, monitoring and direction through the Technical Support Center and/or other emergency response facilities may be necessary.
Inability to establish plant control from outside the Ccontrol Rroom will escalate this event to a Site Area Emergency.
82 to 0CAN121102 Page 83 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HA26 Initiating Condition - ALERT Other conditions exist which in the judgment of the SM/TSC Director/EOF DirectorEmergency Director warrant declaration of an Alert Operating Mode Applicability: All Example Emergency Action Level(s):
: 1. Other conditions exist which in the judgment of the SM/TSC Director/EOF DirectorEmergency Director indicate that events are in progress or have occurred which 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 because of HOSTILE ACTION. Any releases are expected to be limited to small fractions of the EPA Protective Action Guideline exposure levels.
Basis:
This EAL addresses unanticipated conditions not addressed explicitly elsewhere but that warrant declaration of an emergency because conditions exist which are believed by the SM/TSC Director/EOF DirectorEmergency Director to fall under the Alert emergency classification level.
83 to 0CAN121102 Page 84 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HS32 Initiating Condition - SITE AREA EMERGENCY Control Rroom evacuation has been initiated and plant control cannot be established Operating Mode Applicability: All Example Emergency Action Level(s):
: 1. a. Control room evacuation has been initiated AND
: b. Control of the plant cannot be established in accordance with the following procedures within 15(site specific minutes):
Unit 1: 1203.002, Alternate Shutdown Unit 2: 2203.014, Alternate Shutdown Basis:
The intent of this IC is to capture those events where control of the plant cannot be reestablished in a timely manner. In this case, expeditious transfer of control of safety systems has not occurred (although fission product barrier damage may not yet be indicated).
The intent of the EAL is to establish control of important plant equipment and knowledge of important plant parameters in a timely manner. Primary emphasis should be placed on those components and instruments that supply protection for and information about safety functions such as reactivity control (ability to shutdown the reactor and maintain it shutdown), RCS inventory (ability to cool the core), and decay heat removal (ability to maintain a heat sink).Typically, these safety functions are reactivity control (ability to shutdown the reactor and maintain it shutdown),
reactor water level (ability to cool the core), and decay heat removal (ability to maintain a heat sink) for a BWR. The equivalent functions for a PWR are reactivity control, RCS inventory, and secondary heat removal.
The determination of whether or not control is established at the remote shutdown panel is based on SM/TSC Director/EOF DirectorEmergency Director (ED) judgment. The SM/TSC Director/EOF DirectorEmergency Director is expected to make a reasonable, informed judgment within 15 minutesthe site specific time for transfer that the plant stafflicensee has control of the plant from the remote shutdown panel.
[The site specific time for transfer is based on analysis or assessments as to how quickly control must be reestablished without core uncovering and/or core damage. This time should not exceed 15 minutes without additional justification.]
Escalation of this emergency classification level, if appropriate, would be by Fission Product Barrier Degradation (F) or Abnormal Radiation Levels/Radiological Effluent (A) EALs.
84 to 0CAN121102 Page 85 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HS23 Initiating Condition - SITE AREA EMERGENCY Other conditions exist which in the judgment of the SM/TSC Director/EOF DirectorEmergency Director warrant declaration of a Site Area Emergency Operating Mode Applicability: All Example Emergency Action Level(s):
: 1. Other conditions exist which in the judgment of the SM/TSC Director/EOF DirectorEmergency Director indicate that events are in progress or have occurred which involve actual or likely major failures of plant functions needed for protection of the public 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) that prevent effective access to equipment needed for the protection of the public. Any releases are not expected to result in exposure levels which exceed EPA Protective Action Guideline exposure levels beyond the site boundary.
Basis:
This EAL addresses unanticipated conditions not addressed explicitly elsewhere but that warrant declaration of an emergency because conditions exist which are believed by the SM/TSC Director/EOF DirectorEmergency Director to fall under the emergency classification level description for Site Area Emergency.
85 to 0CAN121102 Page 86 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HS14 Initiating Condition - SITE AREA EMERGENCY HOSTILE ACTION within the PROTECTED AREA Operating Mode Applicability: All Example Emergency Action Level(s):
: 1. A HOSTILE ACTION is occurring or has occurred within the PROTECTED AREA as reported by ANOthe Security Shift Supervision(site security shift supervision).
Basis:
This condition represents an escalated threat to plant safety above that contained in the Alert in that a HOSTILE FORCE has progressed from the OWNER CONTROLLED AREA to the PROTECTED AREA.
This EAL addresses the contingency for a very rapid progression of events, such as that experienced on September 11, 2001. It is not premised solely on the potential for a radiological release. Rather the issue includes the need for rapid assistance due to the possibility for significant and indeterminate damage from additional air, land or water attack elements.
The fact that the site is under serious attack with minimal time available for further preparation or additional assistance to arrive requires Offsite Response Organization readiness and preparation for the implementation of protective measures.
This EAL addresses the potential for a very rapid progression of events due to a HOSTILE ACTION. It is not intended to address incidents that are accidental events or acts of civil disobedience, such as small aircraft impact, hunters, or physical disputes between employees within the PROTECTED AREA. Those events are adequately addressed by other EALs.
[Although nuclear plant security officers are well trained and prepared to protect against HOSTILE ACTION, it is appropriate for OROs to be notified and encouraged to begin preparations for public protective actions (if they do not normally) to be better prepared should it be necessary to consider further actions.]
[If not previously notified by NRC that the airborne HOSTILE ACTION was intentional, then it would be expected, although not certain, that notification by an appropriate Federal agency would follow. In this case, appropriate federal agency is intended to be NORAD, FBI, FAA or NRC.
However, the declaration should not be unduly delayed awaiting Federal notification.]
Escalation of this emergency classification level, if appropriate, would be based on actual plant status after impact or progression of attack.
86 to 0CAN121102 Page 87 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HG1 Initiating Condition - GENERAL EMERGENCY HOSTILE ACTION resulting in loss of physical control of the facility Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2)
: 1. A HOSTILE ACTION has occurred such that plant personnel are unable to operate equipment required to maintain safety functions.
OR
: 2. A HOSTILE ACTION has caused failure of Spent Fuel Cooling Systems and IMMINENT fuel damage is likely for a freshly off-loaded reactor core in pool.
Basis:
EAL #1 This EAL encompasses conditions under which a HOSTILE ACTION has resulted in a loss of physical control of VITAL AREAS (containing vital equipment or controls of vital equipment) required to maintain safety functions and control of that equipment cannot be transferred to and operated from another location. These safety functions are reactivity control (ability to shut down the reactor and keep it shutdown) RCS inventory (ability to cool the core), and secondary heat removal (ability to maintain a heat sink).
[Typically, these safety functions are reactivity control (ability to shut down the reactor and keep it shutdown) reactor water level (ability to cool the core), and decay heat removal (ability to maintain a heat sink) for a BWR. The equivalent functions for a PWR are reactivity control, RCS inventory, and secondary heat removal.]
[Loss of physical control of the Control Room or remote shutdown/alternate shutdown capability alone may not prevent the ability to maintain safety functions per se. Design of the remote shutdown/alternate shutdown capability and the location of the transfer switches should be taken into account. Primary emphasis should be placed on those components and instruments that supply protection for and information about safety functions.]
If control of the plant equipment necessary to maintain safety functions can be transferred to another location, then the threshold is not met.
EAL #2 This EAL addresses failure of spent fuel cooling systems as a result of HOSTILE ACTION if IMMINENT fuel damage is likely, such as when a freshly off-loaded reactor core is in the spent fuel pool. At ANO, the term freshly off-loaded reactor core refers to fuel that has been discharged from the core and stored in the spent fuel pool for a period of LESS THAN one year.
[A freshly off-loaded reactor core is defined by site specific criteria.
87 to 0CAN121102 Page 88 of 112 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HG2 Initiating Condition - GENERAL EMERGENCY Other conditions exist which in the judgment of the SM/TSC Director/EOF DirectorEmergency Director warrant declaration of a General Emergency Operating Mode Applicability: All Example Emergency Action Level(s):
: 1. Other conditions exist which in the judgment of the SM/TSC Director/EOF DirectorEmergency Director indicate that events are in progress or have occurred which involve actual or IMMINENT substantial core degradation or melting with potential for loss of containment integrity or HOSTILE ACTION that results in an actual loss of physical control of the facility.
Releases can be reasonably expected to exceed EPA Protective Action Guideline exposure levels offsite for more than the immediate site area.
Basis:
This EAL addresses unanticipated conditions not addressed explicitly elsewhere but that warrant declaration of an emergency because conditions exist which are believed by the SM/TSC Director/EOF DirectorEmergency Director to fall under the emergency classification level description for General Emergency.
88 to 0CAN121102 Page 89 of 112 SYSTEM MALFUNCTION SU1 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT Loss of all oOffsite AC power to Vital 4.16 KVemergency busses > for 15 minutes or longer Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s):
Note: The SM Emergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. Loss of all offsite AC power to Vital 4.16 KV (site specific emergency busses) for > 15 minutes or longer.
Basis:
Prolonged loss of offsite AC power reduces required redundancy and potentially degrades the level of safety of the plant by rendering the plant more vulnerable to a complete loss of AC power to emergency busses.
Fifteen minutes was selected as a threshold to exclude transient or momentary losses of off-site power.
Reference Documents:
: 1. 1202.007, Degraded Power
: 2. 1202.008, Blackout
: 3. 2202.007, Loss of Off-Site Power
: 4. 2202.008, Station Blackout
[At multi-unit stations, the EALs should allow credit for operation of installed design features, such as cross-ties or swing diesels, provided that abnormal or emergency operating procedures address their use. However, these stations must also consider the impact of this condition on other shared safety functions in developing the site specific EAL.]
[Plants that have a proceduralized capability to cross-tie AC power from an off-site power supply of a companion unit may take credit for the redundant power source in the associated EAL for this IC.]
89 to 0CAN121102 Page 90 of 112 SYSTEM MALFUNCTION SU112 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT Inability to reach required operating modeshutdown within Technical Specification limits Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s):
: 1. Plant is not brought to required operating mode within Technical Specifications LCO Action Statement tTime.
Basis:
Limiting Conditions of Operation (LCOs) require the plant to be brought to a required operating mode when the Technical Specification required configuration cannot be restored. Depending on the circumstances, this may or may not be an emergency or precursor to a more severe condition. In any case, the initiation of plant shutdown required by the site Technical Specifications requires a four hour report under 10 CFR 50.72 (b) Non-emergency events. The plant is within its safety envelope when being shut down within the allowable action statement time in the Technical Specifications. An immediate NOUE is required when the plant is not brought to the required operating mode within the allowable action statement time in the Technical Specifications. Declaration of an NOUE is based on the time at which the LCO-specified action statement time period elapses under the site Technical Specifications and is not related to how long a condition may have existed.
[Other required Technical Specification shutdowns that involve precursors to more serious events are addressed by other System Malfunction, Hazards, or Fission Product Barrier Degradation ICs.]
Reference Documents:
: 1. ANO2 Technical Specifications
: 2. ANO1 Technical Specifications 90 to 0CAN121102 Page 91 of 112 SYSTEM MALFUNCTION SU63 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT UNPLANNED loss of safety system annunciation or indication in the Ccontrol Rroom > for 15 minutes or longer Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s):
Note: The SMEmergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. UNPLANNED Loss of >greater than approximately 75% of the following for > 15 minutes or longer:
(Site specific control room safety system annunciation)
: a. Control Room annunciators associated with safety systems.
OR
: b. C(Site specific control Rroom safety system indication.)
Basis:
This IC and its associated EAL are intended to recognize the difficulty associated with monitoring changing plant conditions without the use of a major portion of the annunciation or indication equipment.
Recognition of the availability of computer based indication equipment is considered [e.g., SPDS, plant computer, etc.]
"Planned" loss of annunciators or indicators includes scheduled maintenance and testing activities.
Quantification is arbitrary, however, it is estimated that if approximately 75% of the safety system annunciators or indicators are lost, there is an increased risk that a degraded plant condition could go undetected. It is not intended that plant personnel perform a detailed count of the instrumentation lost but use the value as a judgment threshold for determining the severity of the plant conditions.
91 to 0CAN121102 Page 92 of 112 SYSTEM MALFUNCTION SU63 It is further recognized that most plant designs provide redundant safety system indication powered from separate uninterruptible power supplies. While failure of a large portion of annunciators is more likely than a failure of a large portion of indications, the concern is included in this EAL due to difficulty associated with assessment of plant conditions. The loss of specific, or several, safety system indicators should remain a function of that specific system or component operability status. This will be addressed by the specific Technical Specification. The initiation of a Technical Specification imposed plant shutdown related to the instrument loss will be reported via 10 CFR 50.72. If the shutdown is not in compliance with the Technical Specification action, the NOUE is based on SU112 "Inability to rReach rRequired operating mode Shutdown wWithin Technical Specification lLimits."
Indicators associated with safety systems are those indicators for reactivity control, core cooling, maintaining reactor coolant system integrity or maintaining containment integrity.
[Site specific annunciators or indicators for this EAL must include those identified in the Abnormal Operating Procedures, in the Emergency Operating Procedures, and in other EALs (e.g., area, process, and/or effluent rad monitors, etc.).]
Fifteen minutes was selected as a threshold to exclude transient or momentary power losses.
[Due to the limited number of safety systems in operation during cold shutdown, refueling, and defueled modes, no IC is indicated during these modes of operation.]
This NOUE will be escalated to an Alert based on a concurrent loss of compensatory indications or if a SIGNIFICANT TRANSIENT is in progress during the loss of annunciation or indication (SA6).
Reference Documents:
: 1. 1203.043, Loss Control Room Annunciators
: 2. 2203.042, Loss of Control Room Annunciators 92 to 0CAN121102 Page 93 of 112 SYSTEM MALFUNCTION SU9 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT Fuel cClad degradation Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s): (1 or 2)
: 1. (Site specific radiation monitor readings indicating fuel clad degradation greater than Technical Specification allowable limits.)
: 2. (Site specific coolant sample activity value indicating fuel clad degradation greater than Technical Specification allowable limits.)
: 1. Failed Fuel Iodine radiation monitor reading indicates fuel clad degradation > Technical Specification allowable limits:
Unit 1:
RI-1237S reads > 1.3 x 105 counts per minute Unit 2:
2RITS-4806B reads > .65 x 105 counts per minute OR
: 2. RCS sample activity value indicating fuel clad degradation > Technical Specification allowable limits:
         > 1.0 uCi/gm Dose Equivalent I-131 for more than 48 hours OR Unit 1:
          > 60 uCi/gm Dose Equivalent I-131 Unit 2:
          > 60 uCi/gm Dose Equivalent I-131 OR Unit 1:
          > 2200 &#xb5;Ci/gm Dose Equivalent Xe-133 for more than 48 hours Unit 2:
         > 3100 &#xb5;Ci/gm Dose Equivalent Xe-133 for more than 48 hours 93 to 0CAN121102 Page 94 of 112 SYSTEM MALFUNCTION SU9 Basis:
This ICEAL is included because it is a precursor of more serious conditions and, as result, is considered to be a potential degradation of the level of safety of the plant.
EAL #1 This threshold addresses the Letdown site-specific Rradiation Mmonitor readings that provide indication of a degradation of fuel clad integrity.
[Such as BWR air ejector monitors, PWR failed fuel monitors, etc.]
EAL #2 This EALthreshold addresses coolant samples exceeding coolant technical specifications for transient iodine spiking limits and coolant samples exceeding coolant Technical Specifications for nominal operating limits for the time period specified in the Technical Specifications.
Escalation of this ICEAL to the Alert level is via the Fission Product Barriers (F).
Reference Documents:
: 1. ANO1 Technical Specifications
: 2. ANO2 Technical Specifications 94 to 0CAN121102 Page 95 of 112 SYSTEM MALFUNCTION SU75 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT RCS leakage Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s): (1 or 2)
: 1. Unidentified or pressure boundary leakage >greater than 10 gpm.
OR
: 2. Identified leakage > greater than25 gpm.
Basis:
With respect to this IC, RCS leakage is defined as a loss of RCS inventory due to a leak in the RCS or a supporting system that is not or cannot be isolated within 10 minutes. For example, isolation of the RCS Letdown (purification) system is a standard abnormal operating procedure action and may prevent unnecessary classifications when a non-RCS leakage path leak exists.
However, the intent of this condition is met if attempts to isolate the RCS leak are NOT successful.
This IC is included as an NOUE because it may be a precursor of more serious conditions and, as result, is considered to be a potential degradation of the level of safety of the plant. The 10 gpm value for the unidentified or pressure boundary leakage was selected as it is observable with normal Ccontrol Rroom indications. Lesser values must generally be determined through time-consuming surveillance tests (e.g., mass balances).
Relief valve normal operation should be excluded from this IC. However, a relief valve that operates and fails to close per design should be considered applicable to this IC if the relief valve cannot be isolated.
The EAL for identified leakage is set at a higher value due to the lesser significance of identified leakage in comparison to unidentified or pressure boundary leakage. Steam generator tube leakage is identified leakage. In either case, escalation of this IC to the Alert level is via Fission Product Barrier Degradation (F) ICs.
95 to 0CAN121102 Page 96 of 112 SYSTEM MALFUNCTION SU86 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT Loss of all oOnsite or oOffsite communications capabilities Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s): (1 or 2)
: 1. Loss of all Table M1of the following onsite communications methods affecting the ability to perform routine operations.
(site specific list of communications methods)
OR
: 2. Loss of all Table M2of the following offsite communications methods affecting the ability to perform offsite notifications.
(site specific list of communications methods)
Table M1                                         Table M2 Onsite Communications                        Offsite Communications Methods Methods Station radio system                All telephone lines (commercial and microwave)
Plant paging system                 ENS In-plant telephones Gaitronics Basis:
The purpose of this IC and its associated EALs is to recognize a loss of communications capability that either defeats the plant operations staff ability to perform routine tasks necessary for plant operations or the ability to communicate issues with offsite authorities.
[The loss of off-site communications ability is expected to be significantly more comprehensive than the condition addressed by 10 CFR 50.72.]
The availability of one method of ordinary offsite communications is sufficient to inform federal, state, and local authorities of plant problems. This EAL is intended to be used only when extraordinary means (e.g., relaying of information from non-routine radio transmissions, individuals being sent to off-site locations, etc.) are being used to make communications possible.
96 to 0CAN121102 Page 97 of 112 SYSTEM MALFUNCTION SU86 Reference Documents:
: 1. 1903.062, Communications System Operating Procedure
[Site specific list for on-site communications loss must encompass the loss of all means of communications (e.g., commercial telephones, sound powered phone systems, page party system (Gaitronics) and radios / walkie talkies) routinely used for operations.]
[Site specific list for off-site communications loss must encompass the loss of all means of communications with off-site authorities. This should include the ENS, commercial telephone lines, telecopy transmissions, and dedicated phone systems that are routinely used for offsite emergency notifications.]
97 to 0CAN121102 Page 98 of 112 SYSTEM MALFUNCTION SU108 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT Inadvertent criticality Operating Mode Applicability: Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s):
: 1. UNPLANNED sustained positive period observed on nuclear instrumentation. [BWR]
: 1. UNPLANNED sustained positive startup rate observed on nuclear instrumentation. [PWR]
Basis:
This IC addresses inadvertent criticality events. This IC indicates a potential degradation of the level of safety of the plant, warranting an NOUE classification. This IC excludes inadvertent criticalities that occur during planned reactivity changes associated with reactor startups (e.g.,
criticality earlier than estimated).
[This condition can be identified using the startup rate meter. The term sustained is used in order to allow exclusion of expected short term positive startup rates from planned control rod movements for (such as shutdown bank withdrawal). These short term positive startup rates are the result of the rise in neutron population due to subcritical multiplication.]
Escalation would be by the Fission Product Barrier Table (F), as appropriate to the operating mode at the time of the event.
Reference Documents:
: 1. 1203.012G, Annunciator K08 Corrective Action
: 2. 2203.012D, Annunciator 2K04 Corrective Action 98 to 0CAN121102 Page 99 of 112 SYSTEM MALFUNCTION SA32 Initiating Condition - ALERT Automatic tScram (Trip) fails to shutdown the reactor and the manual actions taken from the reactor control console are successful in shutting down the reactor Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Example Emergency Action Level(s):
: 1. a. An automatic scram (trip) failed to shutdown the reactor as indicated by reactor power >
5%.
AND
: b. Manual actions taken at the reactor control console successfully shutdown the reactor as indicated by reactor power < 5%(site specific indications of plant shutdown).
Basis:
[The reactor should be considered shutdown when it producing less heat than the maximum decay heat load for which the safety systems are designed (typically 3 to 5% power). For plants using CSFSTs, this EAL equates to the criteria used to determine a valid Subcriticality Red Path.
For BWRs this EAL should be the APRM downscale trip setpoint.]
Manual scram (trip) actions taken at the reactor control console are any set of actions by the Rreactor Ooperator(s) which causes or should cause control rods to be rapidly inserted into the core and shuts down the reactor. Any action taken to trip the reactor from any location other than panel C03 (Unit 1) or panels 2C03/2C14 (Unit 2) constitutes a failure of the manual trip function.
Failure of manual trip would escalate the event to a Site Area Emergency (SS3).
[If the manual scram (trip) switches/pushbuttons on the control room console panels are considered an automatic input into the Reactor Protection System, a failure to scram (trip) without any other automatic input would make this threshold applicable.]
This condition indicates failure of the automatic protection system to scram (trip) the reactor. This condition is more than a potential degradation of a safety system in that a front line automatic protection system did not function in response to a plant transient. Thus the plant safety has been compromised because design limits of the fuel may have been exceeded. An Alert is indicated because conditions may exist that lead to potential loss of fuel clad or RCS and because of the failure of the Reactor Protection System to automatically shutdown the plant.
If manual actions taken at the reactor control console fail to shutdown the reactor, the event would escalate to a Site Area Emergency.
99 to 0CAN121102 Page 100 of 112 SYSTEM MALFUNCTION SA64 Initiating Condition - ALERT UNPLANNED lLoss of safety system annunciation or indication in the Ccontrol Rroom with eitherEITHER (1) a SIGNIFICANT TRANSIENT in progress, or (2) compensatory indicators unavailable Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s):
Note: The SM/TSC Director/EOF DirectorEmergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. a. UNPLANNED loss of >greater than approximately 75% of the following > for 15 minutes or longer:
(Site specific control room safety system annunciation)
Control Room annunciators associated with safety systems OR C(Site specific control Rroom safety system indication)
AND
: b. EitherEITHER of the following:
A SIGNIFICANT TRANSIENT is in progress OR.
Compensatory indications are unavailable.
Basis:
This IC is intended to recognize the difficulty associated with monitoring changing plant conditions without the use of a major portion of the annunciation or indication equipment during a SIGNIFICANT TRANSIENT.
[Recognition of the availability of computer based indication equipment is considered (e.g.,
SPDS, plant computer, etc.).]
"Planned" loss of annunciators or indicators includes scheduled maintenance and testing activities.
100 to 0CAN121102 Page 101 of 112 SYSTEM MALFUNCTION SA64 Quantification is arbitrary, however, it is estimated that if approximately 75% of the safety system annunciators or indicators are lost, there is an increased risk that a degraded plant condition could go undetected. It is not intended that plant personnel perform a detailed count of the instrumentation lost but use the value as a judgment threshold for determining the severity of the plant conditions. It is also not intended that the Shift ManagerSupervisor be tasked with making a judgment decision as to whether additional personnel are required to provide increased monitoring of system operation.
It is further recognized that most plant designs provide redundant safety system indication powered from separate uninterruptible power supplies. While failure of a large portion of annunciators is more likely than a failure of a large portion of indications, the concern is included in this EAL due to difficulty associated with assessment of plant conditions. The loss of specific, or several, safety system indicators should remain a function of that specific system or component operability status. This will be addressed by the specific Technical Specification. The initiation of a Technical Specification imposed plant shutdown related to the instrument loss will be reported via 10 CFR 50.72. If the shutdown is not in compliance with the Technical Specification action, the NOUE is based on SU112 "Inability to rReach rRequired operating modeShutdown wWithin Technical Specification lLimits."
[Site-specific annunciators or indicators for this EAL must include those identified in the Abnormal Operating Procedures, in the Emergency Operating Procedures, and in other EALs (e.g., area, process, and/or effluent rad monitors, etc.).]
Indicators associated with safety systems are those indicators for reactivity control, core cooling, maintaining reactor coolant system integrity or maintaining containment integrity.
"Compensatory indications" in this context includes computer based information such as SPDS, QSPDS, COLSS, etc. [This should include all computer systems available for this use depending on specific plant design and subsequent retrofits.] If both a major portion of the annunciation system and all computer monitoring are unavailable, the Alert is required.
[Due to the limited number of safety systems in operation during cold shutdown, refueling and defueled modes, no IC is indicated during these modes of operation.]
Fifteen minutes was selected as a threshold to exclude transient or momentary power losses.
This Alert will be escalated to a Site Area Emergency if the operating crew cannot monitor the transient in progress due to a concurrent loss of compensatory indications with a SIGNIFICANT TRANSIENT in progress during the loss of annunciation or indication.
Reference Documents:
: 1. 1015.037, Post Transient Review
: 2. 1203.043, Loss of Control Room Annunciators
: 3. 2203.042, Loss of Control Room Annunciators 101 to 0CAN121102 Page 102 of 112 SYSTEM MALFUNCTION SA15 Initiating Condition - ALERT AC power capability to Vital 4.16 KVemergency busses reduced to a single power source > for 15 minutes or longer such that any additional single failure would result in station blackout Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s):
Note: The SM/TSC Director/EOF DirectorEmergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. a. AC power capability to Vital 4.16 KV(site-specific emergency busses) reduced to a single power source >for 15 minutes or longer.
AND
: b. Any additional single power source failure will result in station blackout.
Basis:
[This IC and the associated EALs are intended to provide an escalation from IC SU1, "Loss of All Off-site AC Power To Emergency Busses for Greater Than 15 Minutes."]
The condition indicated by this IC is the degradation of the offsite and onsite AC power systems such that any additional single failure would result in a station blackout. This condition could occur due to a loss of offsite power with a concurrent failure of all but one emergency generator to supply power to its emergency busses. Another related condition could be the loss of all offsite power and loss of onsite emergency generators with only one train of emergency busses being backfed from the unit main generator, or the loss of onsite emergency generators with only one train of emergency busses being backfed from offsite power. The subsequent loss of this single power source would escalate the event to a Site Area Emergency in accordance with SS1.
Fifteen minutes was selected as a threshold to exclude transient or momentary losses of power.
The EAL allows credit for operation of the Alternate AC Diesel Generator.
Reference Documents:
: 1. 1202.007, Degraded Power
: 2. 1202.008, Blackout
: 3. 2202.007, Loss of Off-Site Power
: 4. 2202.008, Station Blackout
: 5. 2104.037, Alternate AC Diesel Generator Operations 102 to 0CAN121102 Page 103 of 112 SYSTEM MALFUNCTION SA15
[At multi-unit stations, the EALs should allow credit for operation of installed design features, such as cross-ties or swing diesels, provided that abnormal or emergency operating procedures address their use. However, these stations must also consider the impact of this condition on other shared safety functions in developing the site specific EAL.]
[Plants that have a proceduralized capability to cross-tie AC power from an off-site power supply of a companion unit may take credit for the redundant power source in the associated EAL for this IC.]
103 to 0CAN121102 Page 104 of 112 SYSTEM MALFUNCTION SS1 Initiating Condition - SITE AREA EMERGENCY Loss of all oOffsite and all oOnsSite AC power to Vital 4.16 KVemergency busses >for 15 minutes or longer.
Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s):
Note: The SM/TSC Director/EOF DirectorEmergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. Loss of all oOffs-Site and all oOns-Site AC power to Vital 4.16 KV(site specific emergency busses) > for 15 minutes or longer.
Basis:
Loss of all AC power to emergency busses compromises all plant safety systems requiring electric power including Shutdown CoolingRHR, ECCS, Containment Heat Removal and the Ultimate Heat Sink. Prolonged loss of all AC power to emergency busses will lead to loss of Fuel Clad, RCS, and Containment, thus this event can escalate to a General Emergency.
Fifteen minutes was selected as a threshold to exclude transient or momentary losses of offsite power.
[At multi-unit stations, the EALs should allow credit for operation of installed design features, such as cross-ties or swing diesels, provided that abnormal or emergency operating procedures address their use. However, these stations must also consider the impact of this condition on other shared safety functions in developing the site specific EAL.]
[Plants that have a proceduralized capability to cross-tie AC power from an off-site power supply of a companion unit may take credit for the redundant power source in the associated EAL for this IC.]
Escalation to General Emergency is via Fission Product Barrier Degradation (F) or IC SG1, "Prolonged lLoss of aAll oOffsite Powerand aProlonged Loss of All oOnsite AC pPower to Vital 4.16 KV busses."
Reference Documents:
: 1. 1202.007, Degraded Power
: 2. 1202.008, Blackout
: 3. 2202.007, Loss of Off-Site Power
: 4. 2202.008, Station Blackout
: 5. 2104.037, Alternate AC Diesel Generator Operations 104 to 0CAN121102 Page 105 of 112 SYSTEM MALFUNCTION SS32 Initiating Condition - SITE AREA EMERGENCY Automatic tScram (Trip) fails to shutdown the reactor and manual actions taken from the reactor control console are not successful in shutting down the reactor Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Example Emergency Action Level(s):
: 1. a. An automatic scram (trip) failed to shutdown the reactor.
AND
: b. Manual actions taken at the reactor control console do not shutdown the reactor as indicated by reactor power > 5%. (site specific indications of reactor not shutdown).
Basis:
Under these conditions, the reactor is producing more heat than the maximum decay heat load for which the safety systems are designed and efforts to bring the reactor subcritical are unsuccessful. A Site Area Emergency is warranted because conditions exist that lead to IMMINENT loss or potential loss of both fuel clad and RCS.
[The reactor should be considered shutdown when it producing less heat than the maximum decay heat load for which the safety systems are designed (typically 3 to 5% power). For plants using CSFSTs, this EAL equates to the criteria used to determine a valid Subcriticality Red Path.
For BWRs this EAL should be the APRM downscale trip setpoint.]
Manual scram (trip) actions taken at the reactor control console are any set of actions by the Rreactor Ooperator(s) at which causes or should cause control rods to be rapidly inserted into the core and shuts down the reactor.
Manual scram (trip) actions are not considered successful if action away from panel C03 (Unit 1) or panels 2C03/2C14 (Unit 2)the reactor control console is required to scram (trip) the reactor.
This EAL is still applicable even if actions taken away from panel C03 (Unit 1) or panels 2C03/2C14 (Unit 2)the reactor control console are successful in shutting the reactor down because the design limits of the fuel may have been exceeded or because of the gross failure of the Reactor Protection System to shutdown the plant.
[Although this IC may be viewed as redundant to the Fission Product Barrier Degradation IC, its inclusion is necessary to better assure timely recognition and emergency response.]
Escalation of this event to a General Emergency would be due to a prolonged condition leading to an extreme challenge to either core-cooling or heat removal.
105 to 0CAN121102 Page 106 of 112 SYSTEM MALFUNCTION SS43 Initiating Condition - SITE AREA EMERGENCY Loss of all vital DC power > for 15 minutes or longer.
Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s):
Note: The SM/TSC Director/EOF DirectorEmergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. < Less than 105 volts (site specific bus voltage indication) on all (site specific Vvital DC busses) > for 15 minutes or longer.
Basis:
Loss of all DC power compromises ability to monitor and control plant safety functions. Prolonged loss of all DC power will cause core uncovering and loss of containment integrity when there is significant decay heat and sensible heat in the reactor system.
[Site specific bus voltage should be based on the minimum bus voltage necessary for the operation of safety related equipment. This voltage value should incorporate a margin of at least 15 minutes of operation before the onset of inability to operate those loads. This voltage is usually near the minimum voltage selected when battery sizing is performed. Typically the value for the entire battery set is approximately 105 VDC. For a 60 cell string of batteries the cell voltage is typically 1.75 Volts per cell. For a 58 string battery set the minimum voltage is typically 1.81 Volts per cell.]
Fifteen minutes was selected as a threshold to exclude transient or momentary power losses.
Escalation to a General Emergency would occur by Abnormal Radiation Levels/Radiological Effluent (A), Fission Product Barrier Degradation (F).
106 to 0CAN121102 Page 107 of 112 SYSTEM MALFUNCTION SS6 Initiating Condition - SITE AREA EMERGENCY Inability to monitor a SIGNIFICANT TRANSIENT in progress Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s):
Note: The SM/TSC Director/EOF DirectorEmergency Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. a. Loss of > greater than approximately 75% of the following > for 15 minutes or longer:
(Site specific control room safety system annunciation)
Control Room annunciators associated with safety systems OR C(Site specific control Rroom safety system indication)
AND
: b. A SIGNIFICANT TRANSIENT is in progress.
AND
: c. Compensatory indications are unavailable.
Basis:
This IC is intended to recognize the threat to plant safety associated with the complete loss of capability of the control room staff to monitor plant response to a SIGNIFICANT TRANSIENT.
"Planned" and UNPLANNED actions are not differentiated since the loss of instrumentation of this magnitude is of such significance during a transient that the cause of the loss is not an ameliorating factor.
Quantification is arbitrary, however, it is estimated that if approximately 75% of the safety system annunciators or indicators are lost, there is an increased risk that a degraded plant condition could go undetected. It is not intended that plant personnel perform a detailed count of the instrumentation lost but use the value as a judgment threshold for determining the severity of the plant conditions. It is also not intended that the Shift ManagerSupervisor be tasked with making a 107 to 0CAN121102 Page 108 of 112 SYSTEM MALFUNCTION SS6 judgment decision as to whether additional personnel are required to provide increased monitoring of system operation.
It is further recognized that most plant designs provide redundant safety system indication powered from separate uninterruptible power supplies. While failure of a large portion of annunciators is more likely than a failure of a large portion of indications, the concern is included in this EAL due to difficulty associated with assessment of plant conditions. The loss of specific, or several, safety system indicators should remain a function of that specific system or component operability status. This will be addressed by the specific Technical Specification. The initiation of a Technical Specification imposed plant shutdown related to the instrument loss will be reported via 10 CFR 50.72. If the shutdown is not in compliance with the Technical Specification action, the NOUE is based on SU112 "Inability to rReach rRequired operating modeShutdown wWithin Technical Specification lLimits."
A Site Area Emergency is considered to exist if the Ccontrol Rroom staff cannot monitor safety functions needed for protection of the public while a significant transient is in progress.
[Site specific annunciators for this EAL should be limited to include those identified in the Abnormal Operating Procedures, in the Emergency Operating Procedures, and in other EALs
(.g., area, process, and/or effluent rad monitors, etc.)]
Site specific indications needed to monitor safety functions necessary for protection of the public must include Ccontrol Rroom indications, computer generated indications and dedicated annunciation capability.
Indicators associated with safety systems are those indicators for reactivity control, core cooling, maintaining reactor coolant system integrity or maintaining containment integrity.
[The specific indications should be those used to determine such functions as the ability to shut down the reactor, maintain the core cooled, to maintain the reactor coolant system intact, maintain the spent fuel cooled, and to maintain containment intact.]
"Compensatory indications" in this context includes computer based information such as SPDS, QSPDS, COLSS, etc. This should include all computer systems available for this use depending on specific plant design and subsequent retrofits.
Fifteen minutes was selected as a threshold to exclude transient or momentary power losses.
Reference Documents:
: 1. 1015.037, Post Transient Review
: 2. 1203.043, Loss of Control Room Annunciators
: 3. 2203.042, Loss of Control Room Annunciators
[Due to the limited number of safety systems in operation during cold shutdown, refueling and defueled modes, no IC is indicated during these modes of operation.]
108 to 0CAN121102 Page 109 of 112 SYSTEM MALFUNCTION SG1 Initiating Condition - GENERAL EMERGENCY Prolonged loss of all oOffsite and all oOns-Site AC power to safetyemergency busses Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s):
: 1. a. Loss of all offsite and all onsite AC power to safety(site specific emergency busses).
AND
: b. EitherEITHER of the following:
Restoration of at least one safetyemergency bus in < less than (site specific 4 hours) is not likely.
OR Continuing degradation of core cooling based on Fission Product Barrier monitoring as indicated by CETs > 700&deg;F.(Site specific indication of continuing degradation of core cooling based on Fission Product Barrier monitoring.)
Basis:
Loss of all AC power to emergency busses compromises all plant safety systems requiring electric power including Shutdown CoolingRHR, ECCS, Containment Heat Removal and the Ultimate Heat Sink. Prolonged loss of all AC power to emergency busses will lead to loss of fuel clad, RCS, and containment, thus warranting declaration of a General Emergency.
[The (site-specific hours) to restore AC power can be based on a site blackout coping analysis performed in conformance with 10 CFR 50.63 and Regulatory Guide 1.155, "Station Blackout," as available. Appropriate allowance for off-site emergency response including evacuation of surrounding areas should be considered. Although this IC may be viewed as redundant to the Fission Product Barrier Degradation IC, its inclusion is necessary to better assure timely recognition and emergency response.]
This IC is specified to assure that in the unlikely event of a prolonged station blackout, timely recognition of the seriousness of the event occurs and that declaration of a General Emergency occurs as early as is appropriate, based on a reasonable assessment of the event trajectory.
The likelihood of restoring at least one emergency bus should be based on a realistic appraisal of the situation since a delay in an upgrade decision based on only a chance of mitigating the event could result in a loss of valuable time in preparing and implementing public protective actions.
109 to 0CAN121102 Page 110 of 112 SYSTEM MALFUNCTION SG1 In addition, under these conditions, fission product barrier monitoring capability may be degraded.
[Although it may be difficult to predict when power can be restored, it is necessary to give the SM/TSC Director/EOF Director Emergency Director a reasonable idea of how quickly (s)he may need to declare a General Emergency based on two major considerations:
: 1. Are there any present indications that core cooling is already degraded to the point that loss or potential loss of Fission Product Barriers is IMMINENT?
: 2. If there are no present indications of such core cooling degradation, how likely is it that power can be restored in time to assure that a loss of two barriers with a potential loss of the third barrier can be prevented?
Thus, indication of continuing core cooling degradation must be based on Fission Product Barrier monitoring with particular emphasis on SM/TSC Director/EOF Director Emergency Director judgment as it relates to IMMINENT loss or potential loss of fission product barriers and degraded ability to monitor fission product barriers.]
Reference Documents:
: 1. Unit 1 Calculation 85-E-0072-02, Time from Loss of All AC Power to Loss of Subcooling
: 2. Unit 2 Calculation 85-E-0072-01, Time from Loss of All AC Power to Loss of Subcooling 110 to 0CAN121102 Page 111 of 112 SYSTEM MALFUNCTION SG32 Initiating Condition - GENERAL EMERGENCY Automatic tScram (Trip) and all manual actions fail to shutdown the reactor and indication of an extreme challenge to the ability to cool the core exists Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Example Emergency Action Level(s):
: 1. a. An automatic scram (trip) failed to shutdown the reactor AND
: b. All manual actions do not shutdown the reactor as indicated by reactor power > 5% (site specific indications of reactor not shutdown).
AND
: c. EitherEITHER of the following exist or have occurred due to continued power generation:
(Site specific indication that core cooling is extremely challenged.)
CET temperatures at or approaching 1200&deg; F OR (Site specific indication that heat removal is extremely challenged.)
Feedwater flow rate less than:
Unit 1: 430 gpm Unit 2: 485 gpm Basis:
Under these conditions, the reactor is producing more heat than the maximum decay heat load for which the safety systems are designed and efforts to bring the reactor subcritical are unsuccessful.
[The reactor should be considered shutdown when it producing less heat than the maximum decay heat load for which the safety systems are designed (typically 3 to 5% power). For plants using CSFSTs, this EAL equates to the criteria used to determine a valid Subcriticality Red Path.
For BWRs this EAL should be the APRM downscale trip setpoint.]
[For PWRs, the extreme challenge to the ability to cool the core is intended to mean that the core exit temperatures are at or approaching 1200 degrees F or that the reactor vessel water level is to 0CAN121102 Page 112 of 112 SYSTEM MALFUNCTION SG32 below the top of active fuel. For plants using CSFSTs, this EAL equates to a Core Cooling RED condition combined with a Subcriticality RED condition.]
[For BWRs, the extreme challenge to the ability to cool the core is intended to mean that the reactor vessel water level cannot be restored and maintained above Minimum Steam Cooling RPV Water Level as described in the EOP bases.]
[Another consideration is the inability to initially remove heat during the early stages of this sequence. For PWRs, if emergency feedwater flow is insufficient to remove the amount of heat required by design from at least one steam generator, an extreme challenge should be considered to exist. For plants using CSFSTs, this EAL equates to a Heat Sink RED condition combined with a Subcriticality RED condition.]
[For BWRs, considerations include inability to remove heat via the main condenser, or via the suppression pool or torus (e.g., due to high pool water temperature).]
In the event either of these challenges exists at a time that the reactor has not been brought below the power associated with the safety system design a core melt sequence exists. In this situation, core degradation can occur rapidly. For this reason, the General Emergency declaration is intended to be anticipatory of the fission product barrier table declaration to permit maximum off-site intervention time.

Attachment 3 to 0CAN121102 Proposed Technical Basis Document (Clean)

ANO EAL BASIS DOCUMENT 1
to 0CAN121102 Page 2 of 110 ANO EAL BASIS DOCUMENT TABLE OF CONTENTS SECTION                                                                                                                                PAGE General Notes on Basis Document Use ............................................................................                         4 Definitions .......................................................................................................................... 5 Abnormal Radiation Levels / Radiological Effluents ..........................................................                            9 AU1................................................................................................................................ 10 AU2................................................................................................................................ 13 AA1................................................................................................................................ 15 AA2................................................................................................................................ 18 AA3................................................................................................................................ 20 AS1................................................................................................................................ 21 AG1 ............................................................................................................................... 23 Cold Shutdown / Refueling System Malfunction ................................................................                           25 CU1 ............................................................................................................................... 26 CU2 ............................................................................................................................... 27 CU3 ............................................................................................................................... 29 CU5 ............................................................................................................................... 30 CU6 ............................................................................................................................... 31 CU7 ............................................................................................................................... 32 CU8 ............................................................................................................................... 33 CA1................................................................................................................................ 34 CA3................................................................................................................................ 36 CA5................................................................................................................................ 38 CS1................................................................................................................................ 39 CG1 ............................................................................................................................... 41 Independent Spent Fuel Storage Installation (ISFSI) Malfunction .....................................                                   43 E-HU1............................................................................................................................ 44 Fission Product Barrier Degradation..................................................................................                   45 General Bases...............................................................................................................         46 Fuel Clad Barrier EALs (FCB) .......................................................................................                 47 RCS Barrier EALs (RCB)...............................................................................................                52 Containment Barrier EALS (CNB) .................................................................................                     55 to 0CAN121102 Page 3 of 110 ANO EAL BASIS DOCUMENT TABLE OF CONTENTS SECTION                                                                                                                                PAGE Hazards and Other Conditions Affecting Plant Safety .......................................................                             62 HU1 ............................................................................................................................... 63 HU2 ............................................................................................................................... 64 HU4 ............................................................................................................................... 66 HU5 ............................................................................................................................... 68 HU6 ............................................................................................................................... 69 HA1................................................................................................................................ 73 HA2................................................................................................................................ 75 HA3................................................................................................................................ 76 HA4................................................................................................................................ 77 HA5................................................................................................................................ 79 HA6................................................................................................................................ 80 HS1................................................................................................................................ 84 HS2................................................................................................................................ 85 HS3................................................................................................................................ 86 HG1 ............................................................................................................................... 87 HG2 ............................................................................................................................... 88 System Malfunction............................................................................................................ 89 SU1................................................................................................................................ 90 SU6................................................................................................................................ 91 SU7................................................................................................................................ 93 SU8................................................................................................................................ 94 SU9................................................................................................................................ 95 SU10.............................................................................................................................. 97 SU11.............................................................................................................................. 98 SA1................................................................................................................................ 99 SA3................................................................................................................................ 100 SA6................................................................................................................................ 101 SS1................................................................................................................................ 103 SS3................................................................................................................................ 104 SS4................................................................................................................................ 105 SS6................................................................................................................................ 106 SG1 ............................................................................................................................... 108 SG3 ............................................................................................................................... 110 to 0CAN121102 Page 4 of 110 ANO EAL BASIS DOCUMENT GENERAL NOTES ON BASIS DOCUMENT USE Plant Operating Mode Usage for ANO EALs:
UNIT 1:
Mode 1 = Power Operation - Keff  0.99, Reactor Power > 5%
Mode 2 = Startup - Keff  .99, Reactor Power  5%
Mode 3 = Hot Standby - Keff < .99, RCS  280 &deg;F Mode 4 = Hot Shutdown - Keff < .99, 280 &deg;F > RCS >200 &deg;F Mode 5 = Cold Shutdown - Keff < .99, RCS  200 &deg;F Mode 6 = Refueling - One or more reactor vessel head closure bolts less than fully tensioned Defueled (D) - All reactor fuel removed from reactor pressure vessel (full core offload during refueling or extended outage). This is not an operating mode designation by Technical Specifications.
UNIT 2:
Mode 1 = Power Operation - Keff  0.99, Reactor Power > 5%, RCS  300 &deg;F Mode 2 = Startup - Keff  .99, Reactor Power  5%, RCS  300 &deg;F Mode 3 = Hot Standby - Keff < .99, Reactor Power 0, RCS  300 &deg;F Mode 4 = Hot Shutdown - Keff < .99, Reactor Power 0, 300 &deg;F > RCS > 200 &deg;F Mode 5 = Cold Shutdown - Keff < .99, Reactor Power 0, RCS  200 &deg;F Mode 6 = Refueling - Keff  .95, Reactor Power 0, RCS  140 &deg;F Reactor vessel head unbolted or removed and fuel in the vessel Defueled (D) - All reactor fuel removed from reactor pressure vessel (full core offload during refueling or extended outage). This is not an operating mode designation by Technical Specifications.
This basis document serves two basic functions:
It provides background and explanatory information based on NEI 99-01 to present a basis for the origination of the ANO EALs for reviewers and users.
The second function this basis document may provide is an aid to decision makers when making a determination to classify an emergency event. It is intended that decision makers have all the information in Attachment 7.1 of this procedure that they need to make a sound classification decision. Information that may be useful to a decision maker in classifying emergency events is also contained in the Basis section for each IC in the Basis Document.
The expectation is that emergency classifications are to be made as soon as conditions are present and recognizable for the classification, but within 15 minutes or less in all cases of conditions present. A decision makers use of this Basis Document for assistance is not intended to delay the classification.
to 0CAN121102 Page 5 of 110 ANO EAL BASIS DOCUMENT DEFINITIONS The following definitions are taken from NEI 99-01 are applicable to the ANO emergency classification system:
AFFECTING SAFE SHUTDOWN:
Event in progress has adversely affected functions that are necessary to bring the plant to and maintain it in the applicable HOT or COLD SHUTDOWN condition. Plant condition applicability is determined by Technical Specification LCOs in effect.
Example 1:     Event causes damage that results in entry into an LCO that requires the plant to be placed in HOT SHUTDOWN. HOT SHUTDOWN is achievable, but COLD SHUTDOWN is not. This event is not AFFECTING SAFE SHUTDOWN.
Example 2:     Event causes damage that results in entry into an LCO that requires the plant to be placed in COLD SHUTDOWN. HOT SHUTDOWN is achievable, but COLD SHUTDOWN is not. This event is AFFECTING SAFE SHUTDOWN.
BOMB:
Refers to an explosive device suspected of having sufficient force to damage plant systems or structures.
CIVIL DISTURBANCE:
A group of persons violently protesting station operations or activities at the site.
CONFINEMENT BOUNDARY:
The barrier(s) between areas containing radioactive substances and the environment.
CONTAINMENT CLOSURE:
The site specific procedurally defined actions taken to secure containment and its associated structures, systems, and components as a functional barrier to fission product release under existing plant conditions.
EXPLOSION:
A rapid, violent, unconfined combustion, or catastrophic failure of pressurized/energized equipment that imparts energy of sufficient force to potentially damage permanent structures, systems, or components.
EXTORTION:
An attempt to cause an action at the station by threat of force.
to 0CAN121102 Page 6 of 110 ANO EAL BASIS DOCUMENT FAULTED:
In a steam generator, the existence of secondary side leakage that results in an uncontrolled drop in steam generator pressure or the steam generator being completely depressurized.
FIRE:
Combustion characterized by heat and light. Sources of smoke such as slipping drive belts or overheated electrical equipment do not constitute FIREs.
Observation of flame is preferred but is NOT required if large quantities of smoke and heat are observed.
HOSTAGE:
A person(s) held as leverage against the station to ensure that demands will be met by the station.
HOSTILE ACTION:
An act toward a Nuclear Power Plant or its personnel that includes the use of violent force to destroy equipment, take hostages, and/or intimidate the licensee to achieve an end. This includes attack by air, land, or water using guns, explosives, projectiles, vehicles, or other devices used to deliver destructive force. Other acts that satisfy the overall intent may be included. HOSTILE ACTION should not be construed to include acts of civil disobedience or felonious acts that are not part of a concerted attack on the NPP. Non-terrorism-based EALs should be used to address such activities (i.e., this may include violent acts between individuals in the OWNER CONTROLLED AREA).
HOSTILE FORCE:
One or more individuals who are engaged in a determined assault, overtly or by stealth and deception, equipped with suitable weapons capable of killing, maiming, or causing destruction.
IMMINENT:
Mitigation actions have been ineffective, additional actions are not expected to be successful, and trended information indicates that the event or condition will occur. Where IMMINENT timeframes are specified, they shall apply.
INDEPENDENT SPENT FUEL STORAGE INSTALLATION (ISFSI):
A complex that is designed and constructed for the interim storage of spent nuclear fuel and other radioactive materials associated with spent fuel storage.
INTRUSION:
A person(s) present in a specified area without authorization. Discovery of a BOMB in a specified area is indication of INTRUSION into that area by a HOSTILE FORCE.
to 0CAN121102 Page 7 of 110 ANO EAL BASIS DOCUMENT NORMAL PLANT OPERATIONS:
Activities at the plant site associated with routine testing, maintenance, or equipment operations, in accordance with normal operating or administrative procedures. Entry into off-normal or emergency operating procedures, or deviation from normal security or radiological controls posture, is a departure from NORMAL PLANT OPERATIONS.
OWNER CONTROLLED AREA (OCA):
The external area contiguous to the designated reactor site Protected Area over which site Security exercises control. The OCA extends outward to the Entergy site property lines.
PROJECTILE:
An object directed toward a Nuclear Power Plant that could cause concern for its continued operability, reliability, or personnel safety.
PROTECTED AREA:
An area encompassed by physical barriers (i.e., the security fence) and to which access is controlled.
RUPTURED:
In a steam generator, existence of primary-to-secondary leakage of a magnitude sufficient to require or cause a reactor trip and safety injection.
SABOTAGE:
Deliberate damage, mis-alignment, or mis-operation of plant equipment with the intent to render the equipment inoperable. Equipment found tampered with or damaged due to malicious mischief may not meet the definition of SABOTAGE until this determination is made by security supervision.
SECURITY CONDITION:
Any Security Event as listed in the approved security contingency plan that constitutes a threat/compromise to site security, threat/risk to site personnel, or a potential degradation to the level of safety of the plant. A SECURITY CONDITION does not involve a HOSTILE ACTION.
SIGNIFICANT TRANSIENT:
An UNPLANNED event involving one or more of the following: (1) automatic turbine runback
> 25% thermal reactor power, (2) electrical load rejection > 25% full electrical load, (3) Reactor Trip, (4) Safety Injection Activation, or (5) thermal power oscillations > 10%.
to 0CAN121102 Page 8 of 110 ANO EAL BASIS DOCUMENT STRIKE ACTION:
A work stoppage within the PROTECTED AREA by a body of workers to enforce compliance with demands made on Entergy or its affiliates. The STRIKE ACTION must threaten to interrupt NORMAL PLANT OPERATIONS.
UNISOLABLE:
A breach or leak that cannot be promptly isolated.
UNPLANNED:
A parameter change or an event that is not the result of an intended evolution and requires corrective or mitigative actions.
VALID:
An indication, report, or condition, is considered to be VALID when it is verified by (1) an instrument channel check, (2) indications on related or redundant indicators, or (3) by direct observation by plant personnel, such that doubt related to the indicators operability, the conditions existence, or the reports accuracy is removed. Implicit in this definition is the need for timely assessment.
VISIBLE DAMAGE:
Damage to equipment or structure that is readily observable without measurements, testing, or analysis. Damage is sufficient to cause concern regarding the continued operability or reliability of the affected structure, system, or component. Example damage includes: deformation due to heat or impact, denting, penetration, rupture, cracking, paint blistering. Surface blemishes (e.g.,
paint chipping, scratches) should not be included.
VITAL AREAS:
Any area within a protected area containing any equipment, system or device which, by result of failure, destruction or associated release, could directly or indirectly endanger the health and safety of the public.
to 0CAN121102 Page 9 of 110 ABNORMAL RADIATION LEVELS / RADIOLOGICAL EFFLUENTS to 0CAN121102 Page 10 of 110 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AU1 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT Any release of gaseous or liquid radioactivity to the environment > 2 times the ODCM limits for 60 minutes Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2 or 3)
Note: The SM should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the release duration has exceeded, or will likely exceed, the applicable time. In the absence of data to the contrary, assume that the release duration has exceeded the applicable time if an ongoing release is detected and the release start time is unknown.
: 1. VALID reading on Channel 7 on any of the following radiation monitors > the reading shown for  60 minutes:
MONITORS - UNIT 1                               LIMIT RX-9820          Containment Purge                            5.90E-2 &#xb5;Ci/cc RX-9825          Radwaste Area                                5.36E-2 &#xb5;Ci/cc RX-9830          Fuel Handling Area                           4.54E-2 &#xb5;Ci/cc RX-9835          Emergency Penetration Room                   9.56E-1 &#xb5;Ci/cc MONITORS - UNIT 2                               LIMIT 2RX-9820         Containment Purge                            4.46E-2 &#xb5;Ci/cc 2RX-9825         Radwaste Area                                3.32E-2 &#xb5;Ci/cc 2RX-9830         Fuel Handling Area                           4.46E-2 &#xb5;Ci/cc 2RX-9835         Emergency Penetration Room                   8.84E-1 &#xb5;Ci/cc 2RX-9840         Post Accident Sampling Building              4.42E-1 &#xb5;Ci/cc 2RX-9845         Aux. Building Extension                      1.26E-1 &#xb5;Ci/cc 2RX-9850         Low Level Radwaste Storage Bldg.             1.77E-1 &#xb5;Ci/cc OR to 0CAN121102 Page 11 of 110 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AU1
: 2. VALID reading on any of the following radiation monitors > 2 times the alarm setpoint established by a current release permit for  60 minutes.
EFFLUENT MONITORS - Unit 1 RX-9820         Containment Purge (Channel 7 or 9)
RE-4830         Waste Gas Radiation Monitor RE-4642         Liquid Radwaste Monitor EFFLUENT MONITORS - Unit 2 2RX-9820        Containment Purge (Channel 7 or 9) 2RE-2429        Waste Gas Decay Tank Vent Line Radiation Monitor 2RE-2330        BMS Liquid Discharge Monitor 2RE-4423        Regenerative Waste Discharge Monitor 2RE-4425        SG Blowdown to Flume Radiation Monitor OR
: 3. Confirmed grab sample analyses for gaseous or liquid releases indicates concentrations or release rates > 2 times the applicable values of the ODCM for  60 minutes.
Basis:
The SM should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
This IC addresses a potential reduction in the level of safety of the plant as indicated by a radiological release that exceeds regulatory commitments for an extended period of time.
ANO incorporates features intended to control the release of radioactive effluents to the environment. Further, there are administrative controls established to prevent unintentional releases, or control and monitor intentional releases. The occurrence of extended, uncontrolled radioactive releases to the environment is indicative of a degradation in these features and/or controls.
The ODCM multiples are specified in AU1 and AA1 only to distinguish between non-emergency conditions, and from each other. While these multiples obviously correspond to an offsite dose or dose rate, the emphasis in classifying these events is the degradation in the level of safety of the plant, NOT the magnitude of the associated dose or dose rate.
Releases should not be prorated or averaged over 60 minutes. For example, a release exceeding 4 times ODCM limits for 30 minutes does not meet the threshold for this IC.
to 0CAN121102 Page 12 of 110 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AU1 This Initiating Condition includes any release for which a radioactivity discharge permit was not prepared, or a release that exceeds the conditions (e.g., minimum dilution flow, maximum discharge flow, alarm setpoints, etc.) on the applicable permit.
EAL #1 This EAL addresses radioactivity releases, that for whatever reason, cause effluent radiation monitor readings to exceed the threshold identified in the EAL.
This EAL is intended for sites that have established effluent monitoring on non-routine release pathways for which a discharge permit would not normally be prepared.
EAL #2 This EAL addresses radioactivity releases, that for whatever reason, cause effluent radiation monitor readings to exceed the threshold identified in this Initiating Condition established by the release permit. This value may be associated with a planned batch release, or a continuous release path.
EAL #3 This EAL addresses uncontrolled releases that are detected by sample analyses, particularly on unmonitored pathways, e.g., spills of radioactive liquids into storm drains, heat exchanger leakage in river water systems, lake, etc.
EAL #1 and #2 directly correlate with the IC since annual average meteorology is required to be used in showing compliance with the ODCM and is used in calculating the alarm setpoints.
Reference Documents:
: 1. 1604.051, Eberline Radiation Monitor System
: 2. Offsite Dose Calculation Manual to 0CAN121102 Page 13 of 110 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AU2 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT UNPLANNED rise in plant radiation levels Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2)
: 1. a. UNPLANNED lowering of water level in the refueling canal or spent fuel pool as indicated by:
Personnel observation, refueling crew report, indication on area security camera, borated water source (BWST or RWT) level drop due to makeup demands.
AND
: b. VALID Area Radiation Monitor reading rise on any of the following:
Unit 1 RE-8009            Spent Fuel Area RE-8017            Fuel Handling Area Unit 2 2RE-8914           Spent Fuel Area 2RE-8915           Spent Fuel Area 2RE-8916           Spent Fuel Area 2RE-8912           Containment Incore Instrumentation OR
: 2. UNPLANNED VALID Area Radiation Monitor readings or survey results indicate a rise by a factor of 1000 over normal* levels.
Note: For area radiation monitors with ranges incapable of measuring 1000 times normal* levels, classification shall be based on VALID full scale indication unless surveys confirm that area radiation levels are below 1000 times normal* within 15 minutes of the Area Radiation Monitor indications going to full scale indication.
* Normal can be considered as the highest reading in the past twenty-four hours excluding the current peak value.
to 0CAN121102 Page 14 of 110 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AU2 Basis:
This IC addresses elevated radiation levels as a result of lowered water level above irradiated fuel or events that have resulted, or may result, in UNPLANNED rises in radiation dose rates within plant buildings. These radiation rises represent a loss of control over radioactive material and represent a potential degradation in the level of safety of the plant.
EAL #1 The refueling pathway is a site specific combination of cavities, tubes, canals and pools. While a radiation monitor could detect a rise in dose rate due to a drop in the water level, it might not be a reliable indication of whether or not the fuel is covered. For example, a refueling bridge ARM reading may rise due to planned evolutions such as head lift, or even a fuel assembly being raised in the manipulator mast. Also, a monitor could in fact be properly responding to a known event involving transfer or relocation of a source, stored in or near the fuel pool or responding to a planned evolution such as removal of the reactor head. Generally, elevated radiation monitor indications will need to be combined with another indicator (or personnel report) of water loss.
For refueling events where the water level drops below the RPV flange classification would be via CU2. This event escalates to an Alert per AA2 if irradiated fuel outside the reactor vessel is uncovered. For events involving irradiated fuel in the reactor vessel, escalation would be via the Fission Product Barrier Matrix for events in operating Modes 1-4.
EAL #2 This EAL addresses rises in plant radiation levels that represent a loss of control of radioactive material resulting in a potential degradation in the level of safety of the plant.
This EAL excludes radiation level rises that result from planned activities such as use of radiographic sources and movement of radioactive waste materials. A specific list of ARMs is not required as it would restrict the applicability of the Threshold. The intent is to identify loss of control of radioactive material in any monitored area.
to 0CAN121102 Page 15 of 110 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AA1 Initiating Condition - ALERT Any release of gaseous or liquid radioactivity to the environment > 200 times the ODCM limits for  15 minutes Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2 or 3)
Note: The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the release duration has exceeded, or will likely exceed, the applicable time. In the absence of data to the contrary, assume that the release duration has exceeded the applicable time if an ongoing release is detected and the release start time is unknown.
: 1. VALID reading on Channel 7 on any of the following radiation monitors > the reading shown for  15 minutes:
MONITORS - UNIT 1                                LIMIT RX-9820          Containment Purge                          5.90E0 &#xb5;Ci/cc RX-9825          Radwaste Area                              5.36E0 &#xb5;Ci/cc RX-9830          Fuel Handling Area                         4.54E0 &#xb5;Ci/cc RX-9835          Emergency Penetration Room                9.56E+1 &#xb5;Ci/cc MONITORS - UNIT 2                                LIMIT 2RX-9820         Containment Purge                           4.46E0 &#xb5;Ci/cc 2RX-9825         Radwaste Area                               3.32E0 &#xb5;Ci/cc 2RX-9830         Fuel Handling Area                          4.46E0 &#xb5;Ci/cc 2RX-9835         Emergency Penetration Room                 8.84E+1 &#xb5;Ci/cc 2RX-9840         Post Accident Sampling Building            4.42E+1 &#xb5;Ci/cc 2RX-9845         Aux. Building Extension                    1.26E+1 &#xb5;Ci/cc 2RX-9850         Low Level Radwaste Storage Bldg.           1.77E+1 &#xb5;Ci/cc OR to 0CAN121102 Page 16 of 110 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AA1
: 2. EITHER VALID reading on any of the following radiation monitors > 200 times the alarm setpoint established by a current release permit for  15 minutes OR VALID reading greater than the value listed for  15 minutes.
MONITORS - UNIT 1                                LIMIT RX-9820        Containment Purge (Channel 7 or 9)                    N/A RE-4830        Waste Gas Radiation Monitor                       9.5E7 cpm RE-4642        Liquid Radwaste Monitor                           9.5E7 cpm MONITORS - UNIT 2                                LIMIT 2RX-9820       Containment Purge (Channel 7 or 9)                    N/A 2RE-2429       Waste Gas Monitoring System                       9.5E5 cpm 2RE-2330       BMS Liquid Discharge Monitor                      9.5E5 cpm 2RE-4423       Regenerative Waste Discharge Monitor              9.5E5 cpm 2RE-4425       SG Blowdown to Flume Radiation Monitor            9.5E5 cpm OR
: 3. Confirmed grab sample analyses for gaseous or liquid releases indicates concentrations or release rates > 200 times the applicable values of the ODCM for  15 minutes.
Basis:
The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
This IC addresses an actual or substantial potential reduction in the level of safety of the plant as indicated by a radiological release that exceeds regulatory commitments for an extended period of time. ANO incorporates features intended to control the release of radioactive effluents to the environment. Further, there are administrative controls established to prevent unintentional releases, or control and monitor intentional releases. The occurrence of extended, uncontrolled radioactive releases to the environment is indicative of a degradation in these features and/or controls.
The ODCM multiples are specified in AU1 and AA1 only to distinguish between non-emergency conditions, and from each other. While these multiples obviously correspond to an offsite dose or dose rate, the emphasis in classifying these events is the degradation in the level of safety of the plant, NOT the magnitude of the associated dose or dose rate.
to 0CAN121102 Page 17 of 110 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AA1 Releases should not be prorated or averaged. For example, a release exceeding 600 times ODCM limits for 5 minutes does not meet the threshold for this IC.
This Initiating Condition includes any release for which a release permit was not prepared, or a release that exceeds the conditions (e.g., minimum dilution flow, maximum discharge flow, alarm setpoints, etc.) on the applicable permit.
EAL #1 This EAL addresses radioactivity releases, that for whatever reason, cause effluent radiation monitor readings to exceed the threshold identified in the Initiating Condition.
This EAL is intended for sites that have established effluent monitoring on non-routine release pathways for which a discharge permit would not normally be prepared.
EAL #2 This EAL addresses radioactivity releases, that for whatever reason, cause effluent radiation monitor readings to exceed the threshold identified in this Initiating Condition established by the radioactivity discharge permit. This value may be associated with a planned batch release, or a continuous release path. The limit values provided are for those cases in which the maximum monitor range is less than the release permit value multiplied by 200.
EAL #3 This EAL addresses uncontrolled releases that are detected by sample analyses, particularly on unmonitored pathways, e.g., spills of radioactive liquids into storm drains, heat exchanger leakage in river water systems, lake, etc.
EAL #1 and #2 directly correlate with the IC since annual average meteorology is required to be used in showing compliance with the ODCM and is used in calculating the alarm setpoints.
Reference Documents:
: 1. 1604.051, Eberline Radiation Monitor System
: 2. Offsite Dose Calculation Manual to 0CAN121102 Page 18 of 110 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AA2 Initiating Condition - ALERT Damage to irradiated fuel or loss of water level that has resulted or will result in the uncovering of irradiated fuel outside the reactor vessel Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2)
: 1. A water level drop in the refueling canal or spent fuel pool that will result in irradiated fuel becoming uncovered.
OR
: 2. VALID alarm on any of the following radiation monitors due to damage to irradiated fuel or loss of water level.
Unit 1 RX-9820             Containment Purge (Channel 7 or 9)
RX-9825             Radwaste Area (Channel 7 or 9)
RX-9830             Fuel Handling Area (Channel 7 or 9)
RE-8060             Containment High Range Radiation Monitors RE-8061             Containment High Range Radiation Monitors RE-8009             Spent Fuel Area RE-8017             Fuel Handling Unit 2 2RX-9820            Containment Purge (Channel 7 or 9) 2RX-9825            Radwaste Area (Channel 7 or 9) 2RX-9830            Fuel Handling Area (Channel 7 or 9) 2RE-8905            Containment Equipment Hatch Area 2RE-8909            Containment Personnel Access Area 2RE-8925-1          Containment High Range Radiation Monitors 2RE-8925-2          Containment High Range Radiation Monitors 2RE-8914            Spent Fuel Area 2RE-8915            Spent Fuel Area 2RE-8916            Spent Fuel Area 2RE-8912            Containment Incore Inst.
to 0CAN121102 Page 19 of 110 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AA2 Basis:
This IC addresses rises in radiation dose rates within plant buildings, and may be a precursor to a radioactivity release to the environment. These events represent a loss of control over radioactive material and represent an actual or substantial potential degradation in the level of safety of the plant.
These events escalate from AU2 in that fuel activity has been released, or is anticipated due to fuel heatup. This IC applies to spent fuel requiring water coverage and is not intended to address spent fuel which is licensed for dry storage.
EAL #1 Indications may include instrumentation such as water level and local area radiation monitors, and personnel (e.g., refueling crew) reports. Depending on available level indication, the declaration may be based on indications of water makeup rate or drop in applicable borated water storage tank level. Video cameras (Security or outage-related) may allow remote observation of level.
EAL #2 This EAL addresses radiation monitor indications of fuel uncovery and/or fuel damage.
Elevated ventilation monitor readings may be indication of a radioactivity release from the fuel, confirming that damage has occurred. Elevated background at the ventilation monitor due to water level drop may mask elevated ventilation exhaust airborne activity and needs to be considered.
While a radiation monitor could detect a rise in dose rate due to a drop in the water level, it might not be a reliable indication of whether or not the fuel is covered.
For example, a refueling bridge ARM reading may rise due to planned evolutions such as head lift, or even a fuel assembly being raised in the manipulator mast. Also, a monitor could in fact be properly responding to a known event involving transfer or relocation of a source, stored in or near the fuel pool or responding to a planned evolution such as removal of the reactor head.
Generally, elevated radiation monitor indications will need to be combined with another indicator (or personnel report) of water loss.
Escalation of this emergency classification level, if appropriate, would be based on AS1 or AG1.
to 0CAN121102 Page 20 of 110 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AA3 Initiating Condition - ALERT Rise in radiation levels within the facility that impedes operation of systems required to maintain plant safety functions Operating Mode Applicability: All Example Emergency Action Level(s):
Dose rate > 15 mR/hr in any of the following areas requiring continuous occupancy to maintain plant safety functions:
Unit 1 Control Room Unit 2 Control Room Central Alarm Station Basis:
This IC addresses elevated radiation levels that impact continued operation in areas requiring continuous occupancy to maintain safe operation or to perform a safe shutdown.
The cause and/or magnitude of the rise in radiation levels is not a concern of this IC. The SM/TSC Director/EOF Director must consider the source or cause of the elevated radiation levels and determine if any other IC may be involved.
This IC is not meant to apply to rises in the containment dome radiation monitors as these are events which are addressed in the fission product barrier matrix EALs.
Areas requiring continuous occupancy include the Control Rooms and the Central Alarm Station.
to 0CAN121102 Page 21 of 110 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AS1 Initiating Condition -- SITE AREA EMERGENCY Offsite dose resulting from an actual or IMMINENT release of gaseous radioactivity > 100 mR TEDE or 500 mR child thyroid CDE for the actual or projected duration of the release Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2 or 3)
Note: The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time. If dose assessment results are available, the classification should be based on EAL #2 instead of EAL #1. Do not delay declaration awaiting dose assessment results.
: 1. VALID reading on Channel 9 on any of the following radiation monitors > the reading shown for  15 minutes:
MONITORS - UNIT 1                               LIMIT RX-9820             Containment Purge                          5.90E+1 &#xb5;Ci/cc RX-9825             Radwaste Area                              5.36E+1 &#xb5;Ci/cc RX-9830             Fuel Handling Area                         4.54E+1 &#xb5;Ci/cc RX-9835             Emergency Penetration Room                 9.56E+2 &#xb5;Ci/cc MONITORS - UNIT 2                               LIMIT 2RX-9820            Containment Purge                          4.46E+1 &#xb5;Ci/cc 2RX-9825            Radwaste Area                              3.32E+1 &#xb5;Ci/cc 2RX-9830            Fuel Handling Area                         4.46E+1 &#xb5;Ci/cc 2RX-9835            Emergency Penetration Room                 8.84E+2 &#xb5;Ci/cc 2RX-9840            Post Accident Sampling Building            4.42E+2 &#xb5;Ci/cc 2RX-9845            Aux. Building Extension                    1.26E+2 &#xb5;Ci/cc 2RX-9850            Low Level Radwaste Storage Bldg.           1.77E+2 &#xb5;Ci/cc OR
: 2. Dose assessment using actual meteorology indicates doses > 100 mR TEDE or 500 mR child thyroid CDE at or beyond the site boundary.
to 0CAN121102 Page 22 of 110 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AS1 OR
: 3. Field survey results indicate closed window dose rates > 100 mR/hr expected to continue for  60 minutes; or analyses of field survey samples indicate child thyroid CDE > 500 mR for one hour of inhalation, at or beyond the site boundary.
Basis:
This IC addresses radioactivity releases that result in doses at or beyond the site boundary that exceed 10% of the EPA Protective Action Guides (PAGs). Releases of this magnitude are associated with the failure of plant systems needed for the protection of the public.
EAL #1 The monitor list in EAL #1 includes monitors on all potential release pathways (plant stack, primary-secondary leak, fuel handling accident).
EAL #2 Since dose assessment in EAL #2 is based on actual meteorology, whereas the monitor readings in EAL #1 are not, the results from these assessments may indicate that the classification is not warranted, or may indicate that a higher classification is warranted. For this reason, emergency implementing procedures should call for the timely performance of dose assessments using actual meteorology and release information. If the results of these dose assessments are available when the classification is made (e.g., initiated at a lower classification level), the dose assessment results override the monitor reading EALs.
EAL #3 Field team surveys in EAL #3 should be performed at or beyond the SITE BOUNDARY and at the most accurate indicator of the condition. Field data are independent of release elevation and meteorology. The assumed release duration is one hour. Expected post accident source terms would be dominated by noble gases providing the dose rate value. Sampling of radioiodine by adsorption on a charcoal cartridge should determine the iodine value.
Reference Documents:
: 1. 1604.051, Eberline Radiation Monitor System
: 2. Offsite Dose Calculation Manual to 0CAN121102 Page 23 of 110 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AG1 Initiating Condition -- GENERAL EMERGENCY Offsite dose resulting from an actual or IMMINENT release of gaseous radioactivity > 1000 mR TEDE or 5000 mR child thyroid CDE for the actual or projected duration of the release using actual meteorology Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2 or 3)
Note: The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time. If dose assessment results are available, the classification should be based on EAL #2 instead of EAL #1. Do not delay declaration awaiting dose assessment results.
: 1. VALID reading on Channel 9 on any of the following radiation monitors > the reading shown for  15 minutes:
MONITORS - UNIT 1                               LIMIT RX-9820          Containment Purge                             5.90E+2 (Ci/cc)
RX-9825          Radwaste Area                                 5.36E+2 (Ci/cc)
RX-9830          Fuel Handling Area                            4.54E+2 (Ci/cc)
RX-9835          Emergency Penetration Room                    9.56E+3 (Ci/cc)
MONITORS - UNIT 2                               LIMIT 2RX-9820         Containment Purge                             4.46E+2 (Ci/cc) 2RX-9825         Radwaste Area                                 3.32E+2 (Ci/cc) 2RX-9830         Fuel Handling Area                            4.46E+2 (Ci/cc) 2RX-9835         Emergency Penetration Room                    8.84E+3 (Ci/cc) 2RX-9840         Post Accident Sampling Building               4.42E+3 (Ci/cc) 2RX-9845         Aux. Building Extension                       1.26E+3 (Ci/cc) 2RX-9850         Low Level Radwaste Storage Building           1.77E+3 (Ci/cc)
OR
: 2. Dose assessment using actual meteorology indicates doses > 1000 mR TEDE or 5000 mR child thyroid CDE at or beyond the site boundary.
OR to 0CAN121102 Page 24 of 110 ABNORMAL RAD LEVELS / RADIOLOGICAL EFFLUENT AG1
: 3. Field survey results indicate closed window dose rates > 1000 mR/hr expected to continue for  60 minutes; or analyses of field survey samples indicate child thyroid CDE > 5000 mR for one hour of inhalation, at or beyond the site boundary.
Basis:
This IC addresses radioactivity releases that result in doses at or beyond the site boundary that exceed the EPA Protective Action Guides (PAGs). Public protective actions will be necessary.
Releases of this magnitude are associated with the failure of plant systems needed for the protection of the public and likely involve fuel damage.
EAL #1 The monitor list in EAL #1 includes monitors on all potential release pathways (plant stack, primary-secondary leak, fuel handling accident).
EAL #2 Since dose assessment in EAL #2 is based on actual meteorology, whereas the monitor readings in EAL #1 are not, the results from these assessments may indicate that the classification is not warranted. For this reason, emergency implementing procedures should call for the timely performance of dose assessments using actual meteorology and release information. If the results of these dose assessments are available when the classification is made (e.g., initiated at a lower classification level), the dose assessment results override the monitor reading EALs.
EAL #3 Field team surveys in EAL #3 should be performed at or beyond the SITE BOUNDARY and at the most accurate indicator of the condition. Field data are independent of release elevation and meteorology. The assumed release duration is one hour. Expected post accident source terms would be dominated by noble gases providing the dose rate value. Sampling of radioiodine by adsorption on a charcoal cartridge should determine the iodine value.
Reference Documents:
: 1. 1604.051, Eberline Radiation Monitor System
: 2. Offsite Dose Calculation Manual to 0CAN121102 Page 25 of 110 Cold Shutdown / Refueling System Malfunction to 0CAN121102 Page 26 of 110 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CU1 Initiating Condition -- NOTIFICATION OF UNUSUAL EVENT RCS leakage Operating Mode Applicability: Cold Shutdown (Mode 5)
Example Emergency Action Level(s):
Note: The SM should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. RCS leakage results in the inability to maintain or restore level within Pressurizer or RCS level target band for  15 minutes.
Basis:
This IC is considered to be a potential degradation of the level of safety of the plant. The inability to maintain or restore level is indicative of loss of RCS inventory.
Relief valve normal operation should be excluded from this IC. However, a relief valve that operates and fails to close per design should be considered applicable to this IC if the relief valve cannot be isolated.
Prolonged loss of RCS Inventory may result in escalation to the Alert emergency classification level via either CA1 or CA3.
to 0CAN121102 Page 27 of 110 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CU2 Initiating Condition -- NOTIFICATION OF UNUSUAL EVENT UNPLANNED loss of RCS / reactor vessel inventory Operating Mode Applicability: Refueling (Mode 6)
Example Emergency Action Level(s): (1 or 2)
Note: The SM should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. UNPLANNED RCS / reactor vessel level drop as indicated by either of the following:
: a. RCS / reactor vessel water level drop below the reactor vessel flange for  15 minutes when the RCS / reactor vessel level band is established above the reactor vessel flange OR
: b. RCS / reactor vessel water level drop below the RCS / reactor vessel level band for 15 minutes or longer when the RCS / reactor vessel level band is established below the reactor vessel flange.
OR
: 2. RCS / reactor vessel level cannot be monitored with a loss of RCS / reactor vessel inventory as indicated by an unexplained level rise in (as applicable) the Reactor Building Sump, Reactor Drain Tank, Aux. Building Equipment Drain Tank, Aux. Building Sump, or Quench Tank.
Basis:
This IC is a precursor of more serious conditions and considered to be a potential degradation of the level of safety of the plant.
Refueling evolutions that lower RCS water level below the reactor vessel flange are carefully planned and procedurally controlled. An UNPLANNED event that results in water level dropping below the reactor vessel flange, or below the planned RCS water level for the given evolution (if the planned RCS water level is already below the reactor vessel flange), warrants declaration of an NUE due to the reduced RCS inventory that is available to keep the core covered.
The allowance of 15 minutes was chosen because it is reasonable to assume that level can be restored within this time frame using one or more of the redundant means of refill that should be available. If level cannot be restored in this time frame then it may indicate a more serious condition exists.
Continued loss of RCS Inventory will result in escalation to the Alert emergency classification level via either CA1 or CA3.
to 0CAN121102 Page 28 of 110 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CU2 EAL #1 This EAL involves a drop in RCS level below the top of the reactor vessel flange that continues for 15 minutes due to an UNPLANNED event. This EAL is not applicable to drops in flooded reactor cavity level, which is addressed by AU2 EAL1, until such time as the level drops to the level of the vessel flange.
If reactor vessel level continues to drop and reaches the Bottom ID of the RCS Loop then escalation to CA1 would be appropriate.
EAL #2 This EAL addresses conditions in the refueling mode when normal means of core temperature indication and RCS level indication may not be available. Redundant means of reactor vessel level indication will normally be installed (including the ability to monitor level visually) to assure that the ability to monitor level will not be interrupted. However, if all level indication were to be lost during a loss of RCS inventory event, the operators would need to determine that reactor vessel inventory loss was occurring by observing sump and tank level changes. Sump and tank level rises must be evaluated against other potential sources of leakage such as cooling water sources inside the containment to ensure they are indicative of RCS leakage.
Escalation to the Alert emergency classification level would be via either CA1 or CA3.
to 0CAN121102 Page 29 of 110 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CU3 Initiating Condition -- NOTIFICATION OF UNUSUAL EVENT UNPLANNED loss of decay heat removal capability with irradiated fuel in the reactor vessel Operating Mode Applicability: Cold Shutdown (Mode 5)
Refueling (Mode 6)
Example Emergency Action Level(s): (1 or 2)
Note: The SM should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. UNPLANNED event results in RCS temperature exceeding 200 &deg;F.
OR
: 2. Loss of all RCS temperature and RCS/reactor vessel level indication for  15 minutes.
Basis:
This IC is a precursor of more serious conditions and, as a result, is considered to be a potential degradation of the level of safety of the plant. In cold shutdown the ability to remove decay heat relies primarily on forced cooling flow. Operation of the systems that provide this forced cooling may be jeopardized due to the unlikely loss of electrical power or RCS inventory. Since the RCS usually remains intact in the cold shutdown mode a large inventory of water is available to keep the core covered.
During refueling the level in the reactor vessel will normally be maintained above the reactor vessel flange. Refueling evolutions that lower water level below the reactor vessel flange are carefully planned and procedurally controlled. Loss of forced decay heat removal at reduced inventory may result in more rapid rises in RCS/reactor vessel temperatures depending on the time since shutdown.
Normal means of core temperature indication and RCS level indication may not be available in the refueling mode. Redundant means of reactor vessel level indication are therefore procedurally installed to assure that the ability to monitor level will not be interrupted. However, if all level and temperature indication were to be lost in either the cold shutdown of refueling modes, EAL 2 would result in declaration of an NUE if both temperature and level indication cannot be restored within 15 minutes from the loss of both means of indication.
Escalation to Alert would be via CA1 based on an inventory loss or CA3 based on exceeding its temperature criteria.
to 0CAN121102 Page 30 of 110 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CU5 Initiating Condition -- NOTIFICATION OF UNUSUAL EVENT AC power capability to Vital 4.16 KV busses reduced to a single power source  15 minutes such that any additional single failure would result in station blackout Operating Mode Applicability: Cold Shutdown (Mode 5)
Refueling (Mode 6)
Example Emergency Action Level(s):
Note: The SM should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. a. AC power capability to Vital 4.16 KV busses reduced to a single power source 15 minutes.
AND
: b. Any additional single power source failure will result in station blackout.
Basis:
The condition indicated by this IC is the degradation of the offsite and onsite AC power systems such that any additional single failure would result in a station blackout. This condition could occur due to a loss of offsite power with a concurrent failure of all but one emergency generator to supply power to its emergency busses. The subsequent loss of this single power source would escalate the event to an Alert in accordance with CA5.
Fifteen minutes was selected as a threshold to exclude transient or momentary losses of power.
The EAL allows credit for operation of the Alternate AC Diesel Generator.
Reference Documents:
: 1. 1202.007, Degraded Power
: 2. 1202.008, Blackout
: 3. 2202.007, Loss of Off-Site Power
: 4. 2202.008, Station Blackout
: 5. 2104.037, Alternate AC Diesel Generator Operations to 0CAN121102 Page 31 of 110 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CU6 Initiating Condition -- NOTIFICATION OF UNUSUAL EVENT Loss of required DC power  15 minutes Operating Mode Applicability: Cold Shutdown (Mode 5)
Refueling (Mode 6)
Example Emergency Action Level(s):
Note: The SM should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1.     < 105 volts on required Vital DC bus  15 minutes.
Basis:
The purpose of this IC and its associated EALs is to recognize a loss of DC power compromising the ability to monitor and control the removal of decay heat during Cold Shutdown or Refueling operations.
It is intended that the loss of the operating (operable) train is to be considered. If this loss results in the inability to maintain cold shutdown, the escalation to an Alert will be per CA3.
Fifteen minutes was selected as a threshold to exclude transient or momentary power losses.
to 0CAN121102 Page 32 of 110 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CU7 Initiating Condition -- NOTIFICATION OF UNUSUAL EVENT Inadvertent criticality Operating Mode Applicability: Cold Shutdown (Mode 5)
Refueling (Mode 6)
Example Emergency Action Level(s):
: 1. UNPLANNED sustained positive startup rate observed on nuclear instrumentation.
Basis:
This IC addresses criticality events that occur in Cold Shutdown or Refueling modes such as fuel mis-loading events and inadvertent dilution events. This IC indicates a potential degradation of the level of safety of the plant, warranting an NUE classification.
This condition can be identified using the startup rate meter. The term sustained is used in order to allow exclusion of expected short term positive startup rates from planned fuel bundle or control rod movements during core alteration. These short term positive startup rates are the result of the rise in neutron population due to subcritical multiplication.
Escalation would be by SM judgment.
to 0CAN121102 Page 33 of 110 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CU8 Initiating Condition -- NOTIFICATION OF UNUSUAL EVENT Loss of all onsite or offsite communications capabilities Operating Mode Applicability: Cold Shutdown (Mode 5)
Refueling (Mode 6)
Defueled Example Emergency Action Level(s): (1 or 2)
: 1. Loss of all Table C2 onsite communication methods affecting the ability to perform routine operations.
OR
: 2. Loss of all Table C3 offsite communication methods affecting the ability to perform offsite notifications.
Table C2                                           Table C3 Onsite Communications Methods                        Offsite Communications Methods Station radio system                  All telephone lines (commercial and microwave)
Plant paging system                                          ENS In-plant telephones Gaitronics Basis:
The purpose of this IC and its associated EALs is to recognize a loss of communications capability that either defeats the plant operations staff ability to perform routine tasks necessary for plant operations or the ability to communicate issues with offsite authorities. The loss of off-site communications ability is expected to be significantly more comprehensive than the condition addressed by 10 CFR 50.72.
The availability of one method of ordinary offsite communications is sufficient to inform federal, state, and local authorities of plant issues. This EAL is intended to be used only when extraordinary means (e.g., relaying of information from radio transmissions, individuals being sent to offsite locations, etc.) are being utilized to make communications possible.
to 0CAN121102 Page 34 of 110 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CA1 Initiating Condition - ALERT Loss of RCS / reactor vessel inventory Operating Mode Applicability: Cold Shutdown (Mode 5)
Refueling (Mode 6)
Example Emergency Action Level(s): (1 or 2)
Note: The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. Loss of RCS / reactor vessel inventory as indicated by:
Unit 1: RVLMS Levels 1 through 8 indicate DRY Unit 2:    RVLMS Levels 1 through 5 indicate DRY OR Unit 1: Reactor vessel level < 368 ft., 0 in. (bottom of the hot leg)
Unit 2:    Reactor vessel level < 369 ft., 1.5 in. (bottom of the hot leg)
OR
: 2. RCS / reactor vessel level cannot be monitored for  15 minutes with a loss of RCS /
reactor vessel inventory as indicated by an unexplained level rise in (as applicable) the Reactor Building Sump, Reactor Drain Tank, Aux. Building Equipment Drain Tank, Aux.
Building Sump, or Quench Tank.
Basis:
These EALs serve as precursors to a loss of ability to adequately cool the fuel. The magnitude of this loss of water indicates that makeup systems have not been effective and may not be capable of preventing further reactor vessel level lowering and potential core uncovery. This condition will result in a minimum emergency classification level of an Alert.
EAL #1 The bottom of the RCS hot leg penetration into the reactor vessel is approximately RLVMS Level 8 (Unit 1) or RVLMS Level 5 (Unit 2). However, RVLMS may not be available in mode 6.
Redundant means level indication is provided in this mode and included in EAL #1. The bottom of the RCS hot leg penetration into the reactor vessel is 368 ft., 0 in. (Unit 1) or 369 ft., 1.5 in.
(Unit 2). Below this level, reactor vessel level indication will be lost and loss of suction to decay heat removal systems will occur. The inability to restore and maintain level after reaching this setpoint would be indicative of a failure of the RCS barrier.
to 0CAN121102 Page 35 of 110 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CA1 EAL #2 In the cold shutdown mode, normal RCS level and reactor vessel level instrumentation systems will usually be available. In the refueling mode, normal means of reactor vessel level indication may not be available. Redundant means of reactor vessel level indication will usually be installed (including the ability to monitor level visually) to assure that the ability to monitor level will not be interrupted. However, if all level indication were to be lost during a loss of RCS inventory event, the operators would need to determine that reactor vessel inventory loss was occurring by observing sump and tank level changes. Sump and tank level rises must be evaluated against other potential sources of leakage such as cooling water sources inside the containment to ensure they are indicative of RCS leakage.
If reactor vessel level continues to lower then escalation to Site Area Emergency will be via CS1.
to 0CAN121102 Page 36 of 110 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CA3 Initiating Condition - ALERT Inability to maintain plant in Cold Shutdown Operating Mode Applicability: Cold Shutdown (Mode 5)
Refueling (Mode 6)
Example Emergency Action Level(s): (1 or 2)
: 1. An UNPLANNED event results in RCS temperature > 200 &deg;F > the specified duration in Table C1.
Table C1 RCS Reheat Duration Thresholds RCS                        Containment Closure              Duration Intact (but not RCS Lowered Inventory)                 N/A                   60 minutes*
Established               20 minutes*
Not intact or RCS Lowered Inventory Not Established              0 minutes
* If an RCS heat removal system is in operation within this time frame and RCS temperature is being reduced, the EAL is not applicable.
OR Note: EAL #2 does not apply in solid plant conditions.
: 2. An UNPLANNED event results in RCS pressure rise > 10 psi due to a loss of RCS cooling.
Basis:
EAL #1 The RCS Reheat Duration Threshold table addresses complete loss of functions required for core cooling for greater than 60 minutes during refueling and cold shutdown modes when RCS integrity is established. RCS integrity should be considered to be in place when the RCS pressure boundary is in its normal condition for the cold shutdown mode of operation (e.g., no freeze seals or nozzle dams). The 60 minute time frame should allow sufficient time to restore cooling without there being a substantial degradation in plant safety.
The RCS Reheat Duration Threshold table also addresses the complete loss of functions required for core cooling for greater than 20 minutes during refueling and cold shutdown modes when CONTAINMENT CLOSURE is established but RCS integrity is not established or RCS inventory is reduced (e.g., mid-loop operation ). As discussed above, RCS integrity should be to 0CAN121102 Page 37 of 110 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CA3 assumed to be in place when the RCS pressure boundary is in its normal condition for the cold shutdown mode of operation (e.g., no freeze seals or nozzle dams). The allowed 20 minute time frame was included to allow operator action to restore the heat removal function, if possible.
Finally, the EAL addresses complete loss of functions required for core cooling during refueling and cold shutdown modes when neither CONTAINMENT CLOSURE nor RCS integrity are established.
The (*) indicates that this EAL is not applicable if actions are successful in restoring an RCS heat removal system to operation and RCS temperature is being reduced within the specified time frame.
EAL #2 The 10 psi pressure rise addresses situations where, due to high decay heat loads, the time provided to restore temperature control, should be less than 60 minutes. The RCS pressure setpoint chosen should be 10 psi or the lowest pressure that the site can read on installed Control Board instrumentation that is equal to or greater than 10 psi.
Escalation to Site Area Emergency would be via CS1 should boiling result in significant reactor vessel level loss leading to core uncovery.
A loss of Technical Specification components alone is not intended to constitute an Alert. The same is true of a momentary UNPLANNED excursion above the Technical Specification cold shutdown temperature limit when the heat removal function is available.
The SM / TSC Director / EOF Director must remain alert to events or conditions that lead to the conclusion that exceeding the EAL is IMMINENT. If, in the judgment of the SM / TSC Director /
EOF Director, an IMMINENT situation is at hand, the classification should be made as if the threshold has been exceeded.
to 0CAN121102 Page 38 of 110 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CA5 Initiating Condition - ALERT Loss of all offsite and all onsite AC power to Vital 4.16KV busses  15 minutes Operating Mode Applicability: Cold Shutdown (Mode 5)
Refueling (Mode 6)
Defueled Example Emergency Action Level(s):
Note: The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. Loss of all offsite and all on-site AC power to Vital 4.16KV busses  15 minutes.
Basis:
Loss of all AC power compromises all plant safety systems requiring electric power including DHR/shutdown cooling, emergency core cooling, containment cooling, spent fuel pool cooling and the ultimate heat sink.
The event can be classified as an Alert when in cold shutdown, refueling, or defueled mode because of the significantly reduced decay heat and lower temperature and pressure, which allow raising the time to restore one of the emergency busses, relative to that specified for the Site Area Emergency EAL.
Escalating to Site Area Emergency, if appropriate, is by Abnormal Radiation Levels/
Radiological Effluent (TAB A) ICs.
Fifteen minutes was selected as a threshold to exclude transient or momentary power losses.
to 0CAN121102 Page 39 of 110 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CS1 Initiating Condition - SITE AREA EMERGENCY Loss of RCS / reactor vessel inventory affecting core decay heat removal capability Operating Mode Applicability: Cold Shutdown (Mode 5)
Refueling (Mode 6)
Example Emergency Action Level(s): (1 or 2)
Note: The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. With CONTAINMENT CLOSURE not established:
Unit 1: RVLMS Levels 1 through 9 indicate DRY Unit 2:    RVLMS Levels 1 through 6 indicate DRY OR
: 2. With CONTAINMENT CLOSURE established, core exit thermocouples indicate superheat.
OR
: 3. RCS / reactor vessel level cannot be monitored for  30 minutes with a loss of RCS /
reactor vessel inventory as indicated by any of the following:
Containment High Range Radiation Monitor reading > 10 R/hr Erratic source range monitor indication Unexplained level rise in Reactor Building Sump, Reactor Drain Tank, Quench Tank, Aux. Building Equipment Drain Tank, or Aux. Building Sump.
Basis:
Under the conditions specified by this IC, continued lowering in RCS / reactor vessel level is indicative of a loss of inventory control. Inventory loss may be due to an RCS breach, pressure boundary leakage, or continued boiling in the RPV. Thus, declaration of a Site Area Emergency is warranted.
Escalation to a General Emergency is via CG1 or AG1.
to 0CAN121102 Page 40 of 110 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CS1 EAL #3 In the cold shutdown mode, normal RCS level and reactor vessel level instrumentation systems will usually be available. In the refueling mode, normal means of reactor vessel level indication may not be available. Redundant means of reactor vessel level indication will usually be installed (including the ability to monitor level visually) to assure that the ability to monitor level will not be interrupted. However, if all level indication were to be lost during a loss of RCS inventory event, the operators would need to determine that reactor vessel inventory loss was occurring by observing sump and tank level changes. Sump and tank level rises must be evaluated against other potential sources of leakage such as cooling water sources inside the containment to ensure they are indicative of RCS leakage.
The 30-minute duration allows sufficient time for actions to be performed to recover inventory control equipment.
As water level in the reactor vessel lowers, the dose rate above the core will rise. The dose rate due to this core shine should result in site specific monitor indication and possible alarm.
to 0CAN121102 Page 41 of 110 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CG1 Initiating Condition - GENERAL EMERGENCY Loss of RCS / reactor vessel inventory affecting fuel clad integrity with containment challenged Operating Mode Applicability: Cold Shutdown (Mode 5)
Refueling (Mode 6)
Example Emergency Action Level(s):
Note: The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. a. Core exit thermocouples indicate superheat for  30 minutes.
AND
: b. Any of the following containment challenge indications:
CONTAINMENT CLOSURE not established Explosive mixture inside containment UNPLANNED rise in containment pressure OR
: 2. a. RCS / reactor vessel level cannot be monitored with core uncovery indicated by any of the following for  30 minutes:
Containment High Range Radiation Monitor reading > 10R/hr Erratic source range monitor indication UNPLANNED level rise in Reactor Building Sump, Reactor Drain Tank, Quench Tank, Aux. Building Equipment Drain Tank, or Aux. Building Sump AND
: b. Any of the following containment challenge indications:
CONTAINMENT CLOSURE not established Explosive mixture inside containment UNPLANNED rise in containment pressure to 0CAN121102 Page 42 of 110 COLD SHUTDOWN/REFUELING SYSTEM MALFUNCTION CG1 Basis:
This IC represents the inability to restore and maintain reactor vessel level to above the top of active fuel with containment challenged. Fuel damage is probable if reactor vessel level cannot be restored, as available decay heat will cause boiling, further reducing the reactor vessel level.
With the CONTAINMENT breached or challenged then the potential for unmonitored fission product release to the environment is high. This represents a direct path for radioactive inventory to be released to the environment. This is consistent with the definition of a GE. The GE is declared on the occurrence of the loss or IMMINENT loss of function of all three barriers.
A number of variables can have a significant impact on heat removal capability challenging the fuel clad barrier. Examples include mid-loop, reduced level / flange level, head in place, cavity flooded, RCS venting strategy, decay heat removal system design, vortexing pre-disposition, and steam generator U-tube draining.
Analysis indicates that core damage may occur within an hour following continued core uncovery therefore, 30 minutes was conservatively chosen.
If CONTAINMENT CLOSURE is re-established prior to exceeding the 30 minute core uncovery time limit then escalation to GE would not occur.
In the early stages of a core uncovery event, it is unlikely that hydrogen buildup due to a core uncovery could result in an explosive mixture of dissolved gasses in Containment. However, Containment monitoring and/or sampling should be performed to verify this assumption and a General Emergency declared if it is determined that an explosive mixture exists.
Sump and tank level rises must be evaluated against other potential sources of leakage such as cooling water sources inside the containment to ensure they are indicative of RCS leakage.
In the cold shutdown mode, normal RCS level and reactor vessel level instrumentation systems will usually be available. In the refueling mode, normal means of reactor vessel level indication may not be available. Redundant means of reactor vessel level indication will usually be installed (including the ability to monitor level visually) to assure that the ability to monitor level will not be interrupted. However, if all level indication were to be lost during a loss of RCS inventory event, the operators would need to determine that reactor vessel inventory loss was occurring by observing sump and tank level changes. Sump and tank level rises must be evaluated against other potential sources of leakage such as cooling water sources inside the containment to ensure they are indicative of RCS leakage.
As water level in the reactor vessel lowers, the dose rate above the core will rise. The dose rate due to this core shine should result in site specific monitor indication and possible alarm.
Reference Documents:
: 1. ULD-1-SYS-24, Unit 1 Inadequate Core Cooling
: 2. ULD-2-SYS-24, Unit 2 Inadequate Core Cooling to 0CAN121102 Page 43 of 110 INDEPENDENT SPENT FUEL STORAGE INSTALLATION (ISFSI) MALFUNCTION to 0CAN121102 Page 44 of 110 ISFSI MALFUNCTION E-HU1 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT Damage to a loaded cask CONFINEMENT BOUNDARY Operating Mode Applicability: All Example Emergency Action Level(s):
: 1. Damage to a loaded cask CONFINEMENT BOUNDARY.
Basis:
An NUE in this IC is categorized on the basis of the occurrence of an event of sufficient magnitude that a loaded cask CONFINEMENT BOUNDARY is damaged or violated. This includes classification based on a loaded fuel storage cask CONFINEMENT BOUNDARY loss leading to the degradation of the fuel during storage or posing an operational safety problem with respect to its removal from storage.
This EAL addresses a dropped cask, a tipped over cask, EXPLOSION, PROJECTILE damage, FIRE damage or natural phenomena affecting a cask (e.g., seismic event, tornado, etc.).
to 0CAN121102 Page 45 of 110 FISSION PRODUCT BARRIER DEGRADATION to 0CAN121102 Page 46 of 110 FISSION PRODUCT BARRIERS General Bases The logic used for these initiating conditions reflects the following considerations:
The Fuel Clad Barrier and the RCS Barrier are weighted more heavily than the Containment Barrier (See Sections 3.4 and 3.8). NUE ICs associated with RCS and Fuel Clad Barriers are addressed under System Malfunction (S) ICs.
At the Site Area Emergency level, there must be some ability to dynamically assess how far present conditions are from the threshold for a General Emergency. For example, if Fuel Clad and RCS Barrier Loss EALs existed, that, in addition to off-site dose assessments, would require continual assessments of radioactive inventory and containment integrity. Alternatively, if both Fuel Clad and RCS Barrier Potential Loss EALs existed, the SM / TSC Director / EOF Director would have more assurance that there was no immediate need to escalate to a General Emergency.
The ability to escalate to higher emergency classes as an event deteriorates must be maintained. For example, RCS leakage steadily increasing would represent an increasing risk to public health and safety.
The Containment Barrier should not be declared lost or potentially lost based on exceeding Technical Specification action statement criteria, unless there is an event in progress requiring mitigation by the Containment barrier. When no event is in progress (Loss or Potential Loss of either Fuel Clad and/or RCS) the Containment Barrier status is addressed by Technical Specifications.
to 0CAN121102 Page 47 of 110 FISSION PRODUCT BARRIERS FUEL CLAD Fuel Clad Barrier Emergency Action Levels: FCB1 OR FCB2 OR FCB3 OR FCB4 OR FCB5 OR FCB6 The Fuel Clad barrier consists of the zircalloy or stainless steel fuel bundle tubes that contain the fuel pellets.
: 1. Primary Coolant Activity Level (FCB1)
Loss:
: 1. Coolant activity > 300 &#xb5;Ci/gm dose equivalent I-131 activity by Chemistry sample OR
: 2. Radiation levels > 1000 MR/hr Unit 1: at SA-229 Unit 2: at 2TCD-19 Potential Loss: None Basis:
Loss The site specific value corresponds to 300 Ci/gm I-131 equivalent. Assessment by the EAL Task Force indicates that this amount of coolant activity is well above that expected for iodine spikes and corresponds to less than 5% fuel clad damage. This amount of radioactivity indicates significant clad damage and thus the Fuel Clad Barrier is considered lost.
A reading of greater than 1000 mR/hr within at one foot from the RCS sample lines (SA-229 for Unit 1, 2TCD-19 for Unit 2) has been determined to correspond to fuel clad failure of approximately 2-5%, and thus the fuel clad barrier is considered lost. This reading is well above that expected for iodine spikes and thus indicates significant clad damage and thus the fuel clad barrier is considered lost.
Potential Loss There is no Potential Loss EAL associated with this item.
Reference Documents
: 1. ANO Calculation 03-E-0002-01, Radiation Monitor EAL Setpoints for Fission Product Barrier Degradation to 0CAN121102 Page 48 of 110 FISSION PRODUCT BARRIERS FUEL CLAD
: 2. Core Exit Thermocouple Readings (FCB2)
Loss:     > 1200 &deg;F CET temperature.
Potential Loss:
Unit 1: ICC exists as evidenced by CETs indicating superheated conditions Unit 2: Average CETs indicate superheat for current RCS pressure Basis:
Loss The Loss EAL of > 1200 &deg;F is consistent with NEI 99-01 and corresponds to significant superheating of the coolant.
Potential Loss The Potential Loss EAL corresponds to a loss of subcooling margin.
Note that the loss or potential loss EAL for this category will occur after a loss of adequate sub-cooling margin, which represents a loss of the RCS barrier in EAL RCB1, and therefore represents the loss of two barriers, resulting in a Site Area Emergency per FS1. Any loss or potential loss of the containment barrier at that point would escalate to a General Emergency.
Reference Documents
: 1. Unit 1 EOP 1202.005, Inadequate Core Cooling
: 2. Unit 1 EOP 1202.013, EOP Figures
: 3. Unit 2 OP 2202.009, Functional Recovery
: 4. ANO Procedure OP 1302.022, Core Damage Assessment
: 5. CE-NPSD-241, Development of the Comprehensive Procedure Guideline for Core Damage Assessment, Task 467
: 6. BWOG EOP Technical Bases Document, Vol. 3, Chapter III.F to 0CAN121102 Page 49 of 110 FISSION PRODUCT BARRIERS FUEL CLAD
: 3. Reactor Vessel Water Level (FCB3)
Loss:     None Potential Loss:
Unit 1: RVLMS Levels 1 through 9 indicate DRY Unit 2: RVLMS Levels 1 through 7 indicate DRY Basis:
Loss There is no Loss EAL associated with this item.
Potential Loss The Reactor Vessel Level Monitoring Systems at ANO do not provide positive indication of core uncovery. The above core level indication provided is used to monitor the approach to and recovery from ICC conditions, but the CETs are used to identify core uncovery, and are the only positive indication of core uncovery.
Per reference document #1, the reactor vessel level indicators installed in Unit 1 extend from the top of the reactor vessel to the fuel alignment plate, and information in reference document
#2 indicates that the lowest sensor is greater than 2 feet above the top of active fuel. If any of the 4 RCPs are running, flow induced turbulence produced by the pumps renders the reactor vessel level indicator readings invalid.
Per reference document #3, only the reactor vessel level indicators above the core are considered part of the ICC monitoring system. Per reference document #4, the lowest sensor above the core, RVLMS LVL 6 on the ICC monitoring panel 2C388, is 47 inches above the top of the core. If any of the 4 RCPs are running, flow induced turbulence produced by the pumps renders the reactor vessel level indicator readings invalid.
For either unit then, should CET indication be unavailable and reactor vessel level indication be unavailable due to RCP operation or any other cause, a degraded ability to monitor the barrier would exist.
Reference Documents:
: 1. ULD-1-SYS-24, Unit 1 Inadequate Core Cooling System
: 2. Calculation 84-EQ-0080-02, Loop Error Analysis for Reactor Vessel Level Monitoring System
: 3. ULD-2-SYS-24, Unit 2 Inadequate Core Cooling Monitoring System
: 4. Calculation 90-E-0116-01, Unit 2 EOP Setpoint Document, Setpoint R.3 to 0CAN121102 Page 50 of 110 FISSION PRODUCT BARRIERS FUEL CLAD
: 4. Containment Radiation Monitoring (FCB4)
Loss:     Containment high range radiation monitor reading > 1000 R/hr Potential Loss: None Basis:
Loss The 1000 R/hr reading on the containment high range radiation monitors (RE-8060 or RE-8061 for Unit 1, 2RE-8925-1 or 2RE-8925-2 for Unit 2) is a value which indicates the release of reactor coolant, with elevated activity indicative of fuel damage, into the containment.
Reactor coolant concentrations of this magnitude are several times larger than the maximum concentrations (including iodine spiking) allowed within technical specifications and are therefore indicative of fuel damage.
This radiation monitor value is higher than that specified for RCS barrier Loss EAL RCB3.
Thus, this EAL indicates a loss of both the Fuel Clad barrier and RCS barrier that appropriately escalates the emergency classification to a Site Area Emergency per FS1.
Potential Loss There is no Potential Loss EAL associated with this item.
Reference Documents:
: 1. NUREG 1228, Source Term Estimation During Incident Response to Severe Nuclear Power Plant Accidents
: 2. ANO Calculation 03-E-0002-01, Radiation Monitor EAL Setpoints for Fission Product Barrier Degradation
: 5. Core Damage Assessment (FCB5)
Loss:     At least 5% fuel clad damage as determined from core damage assessment Potential Loss: None Basis:
Loss This level is consistent with other fuel clad barrier loss EALs indicative of significant fuel clad damage, but uses core damage assessment evaluations by Technical Support personnel. The fuel clad barrier is considered lost.
to 0CAN121102 Page 51 of 110 FISSION PRODUCT BARRIERS FUEL CLAD If this determination is made from the high range containment radiation monitor readings, or if accompanied by other indications of a loss or potential loss of the RCS barrier, this EAL condition represents a Site Area Emergency per FS1.
Potential Loss There is no potential loss EAL associated with this item.
Reference Documents:
: 1. ANO Procedure OP-1302.022, Core Damage Assessment
: 6. Emergency Director Judgment (FCB6)
Any condition in the opinion of the SM / TSC Director / EOF Director that indicates Loss or Potential Loss of the Fuel Clad barrier.
Basis:
This EAL addresses any other factors that are to be used by the SM / TSC Director / EOF Director in determining whether the Fuel Clad barrier is lost or potentially lost. In addition, the inability to monitor the barrier should also be incorporated in this EAL as a factor in SM / TSC Director / EOF Director judgment that the barrier may be considered lost or potentially lost.
to 0CAN121102 Page 52 of 110 FISSION PRODUCT BARRIERS RCS RCS Barrier EALs: RCB1 OR RCB2 OR RCB3 OR RCB4 The RCS Barrier includes the RCS primary side and its connections up to and including the pressurizer safety and relief valves, and other connections up to and including the primary isolation valves.
: 1. RCS Leak Rate (RCB1)
Loss:      RCS leak rate > available makeup capacity as indicated by:
Unit 1: Loss of adequate subcooling margin Unit 2: RCS subcooling (MTS) can NOT be maintained at least 30 &deg;F Potential Loss:
Unit 1: UNISOLABLE RCS leak > 50 gpm with Letdown isolated Unit 2: UNISOLABLE RCS leak > 44 gpm with Letdown isolated Basis:
Loss This EAL addresses conditions where leakage from the RCS is greater than available inventory control capacity such that a loss of subcooling has occurred. The loss of subcooling is the fundamental indication that the inventory control systems are inadequate in maintaining RCS pressure and inventory against the mass loss through the leak.
Potential Loss This EAL is based on the apparent inability to maintain normal liquid inventory within the Reactor Coolant System (RCS) by normal operation of the Makeup and Purification System (Unit 1) or the Chemical and Volume Control System (Unit 2).
For Unit 1 this is based on indications that leakage is greater than normal makeup capacity.
The operator could not batch in water and boric acid to the makeup system fast enough to maintain the makeup tank level during a 50 gpm RCS leak. It is not necessary to perform a detailed assessment of the RCS leakrate to implement this EAL. Any event or condition which, in the judgment of the SM / TSC Director / EOF Director, could result in RCS leakage in excess of Unit 1 normal makeup capacity would meet the intent of this EAL; for example:
Need to open the BWST suction for the operating makeup pump due to lowering makeup tank level Full or partial HPI is needed to maintain the RCS pressure or pressurizer level Two out of three seal stages failed on any RCP RCS pressure lowering due to failure of a primary relief valve to reseat to 0CAN121102 Page 53 of 110 FISSION PRODUCT BARRIERS RCS For Unit 2, this is considered as the capacity of one charging pump discharging to the charging header (44 gpm). Any event or condition which, in the judgment of the SM / TSC Director / EOF Director, could result in RCS leakage in excess of Unit 2 normal makeup capacity would meet the intent of this EAL; for example:
A second charging pump being required is indicative of a substantial RCS leak Three out of four seal stages failed on any RCP RCS pressure lowering due to failure of a primary relief valve to reseat Isolating letdown is a standard abnormal operating procedure action and may prevent unnecessary classifications when a non-RCS leakage path such as a Makeup and Purification System or CVCS leak exists. The intent of this condition is met if attempts to isolate Letdown are NOT successful. Additional charging pumps being required is indicative of a substantial RCS leak.
Reference Documents:
: 1. Unit 1 EOP 1202.013, Figure 1, Saturation and Adequate SCM
: 2. Unit 1 EOP Setpoint Document, Calculation 90-E-0116-07, Setpoint B.19
: 3. Unit 2 EOP 2202.009, Functional Recovery
: 4. Unit 2 EOP Setpoint Document, Calculation 90-E-0116-01
: 5. Unit 2 SAR Table 9.3-14, Charging Pumps Design Data
: 2. SG Tube Rupture (RCB2)
Loss:      SGTR that results in an ECCS (SI) actuation Potential Loss: None Basis:
Loss This EAL addresses the full spectrum of Steam Generator (SG) tube rupture events in conjunction with Containment barrier Loss EALs. It addresses RUPTURED SG(s) for which the leakage is large enough to cause actuation (either automatic or manual) of ECCS (SI). This is consistent to the RCS leak rate barrier Potential Loss EAL.
By itself, this EAL will result in the declaration of an Alert. However, if the SG is also FAULTED (i.e., two barriers failed), the declaration escalates to a Site Area Emergency per Containment barrier Loss EAL CNB3.
to 0CAN121102 Page 54 of 110 FISSION PRODUCT BARRIERS RCS Potential Loss There is no Potential Loss EAL associated with this item.
: 3. Containment Radiation Monitoring (RCB3)
Loss:      Containment high range radiation monitor reading > 100 R/hr.
Potential Loss: None Basis Loss The 100 R/hr reading on the containment high range radiation monitors (RE-8060 or RE-8061 for Unit 1, 2RE-8925-1 or 2RE-8925-2 for Unit 2) is a value which indicates the release of reactor coolant to the containment.
This reading is less than that specified for Fuel Clad barrier EAL FCB4. Thus, this EAL is indicative of a RCS leak only. If the radiation monitor reading rose to that specified by Fuel Clad barrier EAL, fuel damage would also be indicated.
During the initial fifteen minutes after a thermal event inside containment, the high range radiation monitor readings are considered invalid due to possibility of a transient thermally-induced current.
Potential Loss There is no Potential Loss EAL associated with this item.
Reference Documents:
: 1. ANO Calculation 03-E-0002-01, Radiation Monitor EAL Setpoints for Fission Product Barrier Degradation
: 4. Emergency Director Judgment (RCB4)
Any condition in the opinion of the SM / TSC Director / EOF Director that indicates Loss or Potential Loss of the RCS Barrier.
Basis:
This EAL addresses any other factors that are to be used by the SM / TSC Director / EOF Director in determining whether the RCS barrier is lost or potentially lost. In addition, the inability to monitor the barrier should also be incorporated in this EAL as a factor in SM / TSC Director / EOF Director judgment that the barrier may be considered lost or potentially lost.
to 0CAN121102 Page 55 of 110 FISSION PRODUCT BARRIERS CONTAINMENT Containment Barrier EALs:          CNB1 OR CNB2 OR CNB3 OR CNB4 OR CNB5 OR CNB6 OR CNB7 The Containment Barrier includes the containment building and connections up to and including the outermost containment isolation valves. This barrier also includes the main steam, feedwater, and blowdown line extensions outside the containment building up to and including the outermost secondary side isolation valve.
: 1. Containment Pressure (CNB1)
Loss:
: 1. Rapid unexplained drop in containment pressure following an initial rise in containment pressure OR
: 2. Containment pressure or sump level response not consistent with LOCA conditions Potential Loss:
: 1. Unit 1: Containment pressure > 73.7 PSIA (59 PSIG) and rising Unit 2: Containment pressure > 73.7 PSIA (59 PSIG) and rising OR
: 2. Explosive mixture exists inside containment.
OR
: 3. a. Containment Pressure > containment spray actuation setpoint UNIT 1: 44.7 PSIA (30 PSIG)
UNIT 2: 23.3 PSIA (8.6 PSIG)
AND
: b. LESS THAN one full train of spray operating Basis:
Loss Rapid unexplained loss of pressure (i.e., not attributable to containment spray or condensation effects) following an initial pressure rise from a primary or secondary high energy line break indicates a loss of containment integrity. Containment pressure and sump levels should rise as a result of mass and energy release into containment from a LOCA. Thus, sump level or pressure not rising indicates containment bypass and a loss of containment integrity.
to 0CAN121102 Page 56 of 110 FISSION PRODUCT BARRIERS CONTAINMENT This indicator relies on operator recognition of an unexpected response for the condition and therefore, does not have a specific value associated with it. The unexpected response is important because it is the indicator for a containment bypass condition.
Potential Loss 1.
The site specific pressure is based on the containment design pressure.
Potential Loss 2.
Existence of an explosive mixture means a hydrogen and oxygen concentration of at least the lower deflagration limit curve exists. The hydrogen concentration of 4% has been recognized by the NRC staff as a well-established lower flammability limit in air or steam-air atmospheres that is adequately conservative for protecting against an H2 explosion. Hydrogen control systems at ANO are designed and operated as to maintain the containment hydrogen concentration below this level, so that indications of hydrogen concentrations above this are considered a potential challenge to the containment integrity.
Potential Loss 3.
This EAL represents a potential loss of containment in that the containment heat removal/depressurization system (e.g., containment sprays, ice condenser fans, etc., but not including containment venting strategies) are either lost or performing in a degraded manner, as indicated by containment pressure greater than the setpoint at which the equipment was supposed to have actuated.
Reference Documents:
: 1. Unit 1 OP-1105.003, Engineering Safeguards Actuation System
: 2. Unit 1 SAR Sections 1.4.43, 5.2.1.2.1, 14.2.2.5.5.1 (reactor building design pressure)
: 3. Unit 1 SAR Section 6.6 (Post-Loss of Coolant Accident Hydrogen Control)
: 4. Unit 1 TS Table 3.3.5-1
: 5. Unit 2 SAR Section 6.2.5 (Combustible Gas Control In Containment)
: 6. Unit 2 SAR Section 3.8.1.3.1.D (Containment Design Pressure)
: 7. Unit 2 TS Table 3.3-4
: 8. Regulatory Guide 1.7, Control of Combustible Gas Concentrations in Containment Following a Loss-of-Coolant Accident, Rev. 2 1978 to 0CAN121102 Page 57 of 110 FISSION PRODUCT BARRIERS CONTAINMENT
: 2. Core Exit Thermocouple Readings (CNB2)
Loss:     None Potential Loss:
: 1. a. CETs indicate > 1200 &deg;F AND
: b. Restoration procedures not effective within 15 minutes.
OR
: 2. a. CETs indicate > 700 &deg;F AND
: b. RVLMS indicates:
Unit 1: Levels 1 through 9 DRY Unit 2: Levels 1 through 7 DRY AND
: c. Restoration procedures not effective within 15 minutes.
Basis:
Loss There is no Loss EAL associated with this item.
Potential Loss The conditions in these EALs represent an IMMINENT core melt sequence which, if not corrected, could lead to vessel failure and a higher potential for containment failure. In conjunction with the Core Cooling and RCS Leakage criteria in the Fuel and RCS barrier columns, this threshold would result in the declaration of a General Emergency, i.e., loss of two barriers and the potential loss of a third. If the function restoration procedures are ineffective, there is no "success" path.
The function restoration procedures are those emergency operating procedures that address the recovery of the core cooling critical safety functions. The procedure is considered effective if the temperature is dropping or if the vessel water level is rising.
Whether or not the procedures will be effective should be apparent within 15 minutes. The SM /
TSC Director / EOF Director should make the declaration as soon as it is determined that the procedures have been, or will be ineffective.
to 0CAN121102 Page 58 of 110 FISSION PRODUCT BARRIERS CONTAINMENT
: 3. SG Secondary Side Release With Primary-to-Secondary Leakage (CNB3)
Loss:
: 1. Primary-to-secondary leakrate > 10 gpm AND
: 2. UNISOLABLE steam release from affected steam generator to the environment Potential Loss: None Basis:
This loss EAL recognizes that SG tube leakage can represent a bypass of the containment barrier as well as a loss of the RCS barrier.
This EAL results in a NUE for smaller breaks that; (1) do not exceed the Normal Makeup Capacity for Unit 1 or the capacity of one charging pump in the normal charging lineup for Unit 2 EAL in RCS leak rate barrier Potential Loss , or (2) do not result in ECCS actuation in RCS SG tube rupture barrier Loss. For larger breaks, RCS barrier threshold criteria would result in an Alert. For SG tube ruptures which may involve multiple steam generators or UNISOLABLE secondary line breaks, this condition would exist in conjunction with RCS barrier conditions and would result in a Site Area Emergency. Escalation to General Emergency would be based on "Potential Loss" of the Fuel Clad Barrier.
Loss 1.
This EAL addresses the condition in which a RUPTURED steam generator is also FAULTED.
This condition represents a bypass of the RCS and containment barriers and is a subset of the second threshold. In conjunction with RCS leak rate barrier loss EAL RCB2, this would always result in the declaration of a Site Area Emergency.
Loss 2.
This EAL addresses SG tube leaks that exceed 10 gpm in conjunction with an UNISOLABLE release path to the environment from the affected steam generator. The threshold for establishing the UNISOLABLE secondary side release is intended to be a prolonged release of radioactivity from the RUPTURED steam generator directly to the environment. This could be expected to occur when the main condenser is unavailable to accept the contaminated steam (i.e., SG tube rupture with concurrent loss of off-site power and the RUPTURED steam generator is required for plant cooldown or a stuck open relief valve). The time it takes to isolate a SG with tube leakage > 10 gpm in accordance with plant specific EOPs is not considered a prolonged release. In this case the SG with tube leakage > 10 gpm with a concurrent loss of offsite power is normally steamed to the environment in a controlled manner to achieve and maintain a RCS Hot Leg temperature below that which corresponds to the Main Steam Safety Valve relief settings. However, if the SG cannot be isolated or if both SGs have tube leakage > 10 gpm, a prolonged release will likely be necessary to support plant cooldown.
to 0CAN121102 Page 59 of 110 FISSION PRODUCT BARRIERS CONTAINMENT If the main condenser is available, there may be releases via air ejectors, gland seal exhausters, and other similar controlled, and often monitored, pathways. These pathways do not meet the intent of an UNISOLABLE release path to the environment. These minor releases are assessed using Abnormal Radiation Levels / Radiological Effluent ICs (TAB A).
Potential Loss There is no Potential Loss EAL associated with this item.
: 4. Containment Isolation Failure or Bypass (CNB4)
Loss:
: 1. UNISOLABLE breach of containment AND
: 2. Direct downstream pathway to the environment exists after containment isolation signal Potential Loss: None Basis:
Loss This EAL addresses incomplete containment isolation that allows a direct release to the environment. A breach of containment has also occurred if an inboard and outboard pair of isolation valves fails to close on an automatic actuation signal or from a manual action in the Control Room and opens a release path to the environment.
The breach is not isolable from the Control Room if an attempt for isolation from the Control Room has been made and was unsuccessful. An attempt for isolation should be made prior to the accident classification. If isolable upon identification, then this Initiating Condition is not applicable.
The use of the modifier direct in defining the release path discriminates against release paths through interfacing liquid systems. The existence of an in-line charcoal filter does not make a release path indirect since the filter is not effective at removing fission product noble gases.
Typical filters have an efficiency of 95-99% removal of iodine. Given the magnitude of the core inventory of iodine, significant releases could still occur.
In addition, since the fission product release would be driven by boiling in the reactor vessel, the high humidity in the release stream can be expected to render the filters ineffective in a short period.
Potential Loss There is no Potential Loss EAL associated with this item.
to 0CAN121102 Page 60 of 110 FISSION PRODUCT BARRIERS CONTAINMENT
: 5. Containment Radiation Monitoring (CNB5)
Loss: None Potential Loss:
Containment high range radiation monitor reading > 4000 R/hr Basis:
Loss There is no Loss EAL associated with this item.
Potential Loss The 4000 R/hr reading on the containment high range radiation monitors (RE-8060 or RE-8061 for Unit 1, 2RE-8925-1 or 2RE-8925-2 for Unit 2) is a value which indicates significant fuel damage well in excess of the EALs associated with both loss of Fuel Clad and loss of RCS barriers. A major release of radioactivity requiring off-site protective actions from core damage is not possible unless a major failure of fuel cladding allows radioactive material to be released from the core into the reactor coolant.
Regardless of whether containment is challenged, this amount of activity in containment, if released, could have such severe consequences that it is prudent to treat this as a potential loss of containment, such that a General Emergency declaration is warranted.
Because the monitor reading exceeds the readings for Fuel Clad Barrier loss in FCB4 and RCS Barrier loss in RCB3, the SM/TSC Director/EOF Director should declare a General Emergency when this value on the Containment High Range Rad Monitor is exceeded as a loss of two barriers (fuel clad and RCS) and potential loss of the third (containment).
Reference Documents:
: 1. ANO Calculation 03-E-0002-01, Radiation Monitor EAL Setpoints for Fission Product Barrier Degradation
: 2. NUREG 1228, Source Term Estimation During Incident Response to Severe Nuclear Power Plant Accidents to 0CAN121102 Page 61 of 110 FISSION PRODUCT BARRIERS CONTAINMENT
: 6. Other Indications (CNB6)
Elevated readings on the following radiation monitors that indicate loss or potential loss of the Containment barrier:
MONITORS - UNIT 1 RX-9820        Containment Purge RX-9825        Radwaste Area RX-9830        Fuel Handling Area RX-9835        Emergency Penetration Room MONITORS - UNIT 2 2RX-9820       Containment Purge 2RX-9825       Radwaste Area 2RX-9830       Fuel Handling Area 2RX-9835       Emergency Penetration Room 2RX-9840       Post Accident Sampling Building 2RX-9845       Aux. Building Extension Basis:
This EAL covers other indications that may unambiguously indicate the loss or potential loss of the containment barrier.
: 7. Emergency Director Judgment (CNB7)
Any condition in the opinion of the SM / TSC Director / EOF Director that indicates Loss or Potential Loss of the Containment Barrier.
Basis:
This EAL addresses any other factors that are to be used by the SM / TSC Director / EOF Director in determining whether the Containment barrier is lost or potentially lost. In addition, the inability to monitor the barrier should also be incorporated in this EAL as a factor in SM /
TSC Director / EOF Director judgment that the barrier may be considered lost or potentially lost.
The Containment barrier should not be declared lost or potentially lost based on exceeding Technical Specification action statement criteria, unless there is an event in progress requiring mitigation by the Containment barrier. When no event is in progress (Loss or Potential Loss of either Fuel Clad and/or RCS) the Containment barrier status is addressed by Technical Specifications.
to 0CAN121102 Page 62 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY to 0CAN121102 Page 63 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HU1 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT Confirmed SECURITY CONDITION or threat which indicates a potential degradation in the level of safety of the plant Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2 or 3)
: 1. A SECURITY CONDITION that does not involve a HOSTILE ACTION as reported by ANO Security Shift Supervision.
OR
: 2. A credible site specific security threat notification.
OR
: 3. A validated notification from NRC providing information of an aircraft threat.
Basis:
NOTE: Timely and accurate communication between Security Shift Supervision and the Control Room is crucial for the implementation of effective Security EALs.
Security events which do not represent a potential degradation in the level of safety of the plant are reported under 10 CFR 73.71 or in some cases under 10 CFR 50.72. Security events assessed as HOSTILE ACTIONS are classifiable under HA1, HS1 and HG1.
A higher initial classification could be made based upon the nature and timing of the security threat and potential consequences. Consideration shall be given to upgrading the emergency response status and emergency classification in accordance with the Safeguards Contingency Plan and Emergency Plan.
EAL #1 The Security Shift Supervisor is the designated individual on-site qualified and trained to confirm that a security event is occurring or has occurred. Training on security event classification confirmation is closely controlled due to the strict secrecy controls placed on the plant Safeguards Contingency Plan.
This EAL is based on the Safeguards Contingency Plan. The Safeguards Contingency Plan is based on guidance provided in NEI 03-12.
to 0CAN121102 Page 64 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HU1 EAL #2 This EAL is included to ensure that appropriate notifications for the security threat are made in a timely manner. This includes information of a credible threat. Only the plant to which the specific threat is made need declare the NUE.
The determination of credible is made through use of information found in the Safeguards Contingency Plan.
EAL #3 The intent of this EAL is to ensure that notifications for the aircraft threat are made in a timely manner and that Offsite Response Organizations and plant personnel are at a state of heightened awareness regarding the credible threat. It is not the intent of this EAL to replace existing non-hostile related EALs involving aircraft.
This EAL is met when a plant receives information regarding an aircraft threat from NRC.
Validation is performed by calling the NRC or by other approved methods of authentication.
Only the plant to which the specific threat is made need declare the NUE.
The NRC Headquarters Operations Officer (HOO) will communicate to the licensee if the threat involves an airliner (airliner is meant to be a large aircraft with the potential for causing significant damage to the plant). The status and size of the plane may be provided by NORAD through the NRC.
Escalation to Alert via HA1 would be appropriate if the threat involves an airliner within 30 minutes of the plant.
to 0CAN121102 Page 65 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HU2 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT Other conditions exist which in the judgment of the SM warrant declaration of an NUE Operating Mode Applicability: All Example Emergency Action Level(s):
: 1. Other conditions exist which in the judgment of the SM indicate that events are in progress or have occurred which 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 requiring offsite response or monitoring are expected unless further degradation of safety systems occurs.
Basis:
This EAL addresses unanticipated conditions not addressed explicitly elsewhere but that warrant declaration of an emergency because conditions exist which are believed by the SM to fall under the NUE emergency classification level.
to 0CAN121102 Page 66 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HU4 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT FIRE within the PROTECTED AREA not extinguished within 15 minutes of detection or EXPLOSION within the PROTECTED AREA Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2)
Note: The SM should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the duration has exceeded, or will likely exceed, the applicable time.
: 1. FIRE in any Table H1 structure or area not extinguished 1) within 15 minutes of Control Room notification or 2) within 15 minutes of verification of a Control Room FIRE alarm.
Table H1 Unit 1                                            Unit 2 CA-1 & HP Office Area                                  2A3 Room Condensate Demineralizer Room                          2A4, 2D02, & East Battery Room Corridor 98                                            2B53 Room Fire Area C                                            2B63 Room Lower North Electrical Penetration Room                2B9/2B10 Room (LNEPR)                                                2Y11/13 Equipment Room Lower South Electrical Equipment Room (LSEER)          Auxiliary Building 317 General Access
 / Air Compressor Room Auxiliary Building 335' Lower South Electrical Penetration Room Auxiliary Building 354' (LSEPR)
B Engineered Safeguards Features (ESF)
Lower South Piping Penetration Room (LSPPR)
Room Main Steam Isolation Violation (MSIV) Room Corridor Behind Door 340 North Engineered Safeguards (ES) SWGR Room Turbine Building (A4) 2A1, 2A2, 2H1, 2H2 Area South ES SWGR Room                                        354' West wall of Demineralizer area Turbine Building                                          368' West Heater Deck north of north A1, A2, H1, H2 SWGR area                                 Switchgear (SWGR) Room (2A3) and 354' Bowling Alley north end west of                     East of LNEPR Breathing Air compressor room                   Intake Structure 354' or 366' 368' West Heater Deck from LSEER (orange LNEPR door) along east wall of ES SWGR Rooms to Corridor 98 door.                               LSEPR Upper North Electrical Penetration Room                Motor-Generator (MG) Set Room (UNEPR) / Hot Tool Room / Decon Room                   Steam Pipe Area Upper South Electrical Penetration Room                Hot Machine Shop (USEPR)                                                UNEPR, UNPPR, LNPPR, USPPR Upper South Piping Penetration Room (USPPR) to 0CAN121102 Page 67 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HU4 OR
: 2. EXPLOSION within the PROTECTED AREA.
Basis:
This IC addresses the magnitude and extent of FIRES or EXPLOSIONS that may be potentially significant precursors of damage to safety systems. It addresses the FIRE / EXPLOSION, and not the degradation in performance of affected systems that may result.
As used here, detection is visual observation and report by plant personnel or sensor alarm indication.
EAL #1 The 15-minute time period begins with a credible notification that a FIRE is occurring or indication of a fire detection system alarm/actuation. Verification of a fire detection system alarm/actuation includes actions that can be taken within the Control Room or other nearby site specific location to ensure that it is not spurious. An alarm is assumed to be an indication of a FIRE unless it is disproved within the 15-minute period by personnel dispatched to the scene.
In other words, a personnel report from the scene may be used to disprove a sensor alarm if received within 15 minutes of the alarm, but shall not be required to verify the alarm.
The intent of this 15-minute duration is to size the FIRE and to discriminate against small FIRES that are readily extinguished (e.g., smoldering waste paper basket).
EAL #2 This EAL addresses only those EXPLOSIONS of sufficient force to damage permanent structures or equipment within the PROTECTED AREA.
No attempt is made to assess the actual magnitude of the damage. The occurrence of the EXPLOSION is sufficient for declaration.
The SM also needs to consider any security aspects of the EXPLOSION, if applicable.
Escalation of this emergency classification level, if appropriate, would be based on HA4.
to 0CAN121102 Page 68 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HU5 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT Release of toxic, corrosive, asphyxiant, or flammable gases deemed detrimental to NORMAL PLANT OPERATIONS.
Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2)
: 1. Toxic, corrosive, asphyxiant or flammable gases in amounts that have or could adversely affect NORMAL PLANT OPERATIONS.
OR
: 2. Report by Local, County or State officials for evacuation or sheltering of site personnel based on an offsite event.
Basis:
This IC is based on the release of toxic, corrosive, asphyxiant or flammable gases of sufficient quantity to affect NORMAL PLANT OPERATIONS.
The fact that SCBAs may be worn does not eliminate the need to declare the event.
This IC is not intended to require significant assessment or quantification. It assumes an uncontrolled process that has the potential to affect plant operations. This would preclude small or incidental releases, or releases that do not impact structures needed for plant operation.
An asphyxiant is a gas capable of reducing the level of oxygen in the body to dangerous levels.
Most commonly, asphyxiants work by merely displacing air in an enclosed environment. This reduces the concentration of oxygen below the normal level of around 19%, which can lead to breathing difficulties, unconsciousness or even death.
Escalation of this emergency classification level, if appropriate, would be based on HA5.
to 0CAN121102 Page 69 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HU6 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT Natural or destructive phenomena affecting the PROTECTED AREA Operating Mode Applicability: All Example Emergency Action Level: (1 or 2 or 3 or 4 or 5 or 6)
: 1. Seismic event identified by any 2 of the following:
Seismic event confirmed by annunciation of the 0.01g acceleration alarm Earthquake felt in plant National Earthquake Center OR
: 2. Tornado striking within PROTECTED AREA boundary or high winds > 67 mph.
OR
: 3. Internal flooding that has the potential to affect safety related equipment required by Technical Specifications for the current operating mode in any of the structures or areas in Table H1.
to 0CAN121102 Page 70 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HU6 Table H1 Unit 1                                              Unit 2 CA-1 & HP Office Area                                   2A3 Room Condensate Demineralizer Room                           2A4, 2D02, & East Battery Room Corridor 98                                             2B53 Room Fire Area C                                             2B63 Room Lower North Electrical Penetration Room                 2B9/2B10 Room (LNEPR)                                                 2Y11/13 Equipment Room Lower South Electrical Equipment Room (LSEER)           Auxiliary Building 317 General Access
 / Air Compressor Room Auxiliary Building 335' Lower South Electrical Penetration Room Auxiliary Building 354' (LSEPR)
B Engineered Safeguards Features (ESF)
Lower South Piping Penetration Room (LSPPR)
Room Main Steam Isolation Violation (MSIV) Room Corridor Behind Door 340 North Engineered Safeguards (ES) SWGR Room Turbine Building (A4) 2A1, 2A2, 2H1, 2H2 Area South ES SWGR Room                                         354' West wall of Demineralizer area Turbine Building                                           368' West Heater Deck north of north A1, A2, H1, H2 SWGR area                                  Switchgear (SWGR) Room (2A3) and 354' Bowling Alley north end west of                      East of LNEPR Breathing Air compressor room                     Intake Structure 354' or 366' 368' West Heater Deck from LSEER (orange LNEPR door) along east wall of ES SWGR Rooms to Corridor 98 door.                                 LSEPR Upper North Electrical Penetration Room                 Motor-Generator (MG) Set Room (UNEPR) / Hot Tool Room / Decon Room                    Steam Pipe Area Upper South Electrical Penetration Room                 Hot Machine Shop (USEPR)                                                 UNEPR, UNPPR, LNPPR, USPPR Upper South Piping Penetration Room (USPPR)
OR
: 4. Turbine failure resulting in casing penetration or damage to turbine or generator seals.
OR
: 5. Lake Dardanelle level < 335 feet.
OR
: 6. Lake Dardanelle level > 345 feet.
to 0CAN121102 Page 71 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HU6 Basis:
These EALs are categorized on the basis of the occurrence of an event of sufficient magnitude to be of concern to plant operators.
EAL #1 Damage may be caused to some portions of the site, but should not affect ability of safety functions to operate.
As defined in the EPRI-sponsored Guidelines for Nuclear Plant Response to an Earthquake, dated October 1989, a "felt earthquake" is An earthquake of sufficient intensity such that: (a) the vibratory ground motion is felt at the nuclear plant site and recognized as an earthquake based on a consensus of control room operators on duty at the time, and (b) for plants with operable seismic instrumentation, the seismic switches of the plant are activated.
The National Earthquake Center can confirm if an earthquake has occurred in the area of the plant.
EAL #2 This EAL is based on a tornado striking (touching down) or high winds within the PROTECTED AREA.
The high wind value in EAL #2 is conservatively based on the SAR design basis for Unit 1 of 67 mph. Unit 2 Design basis is 80 mph.
Escalation of this emergency classification level, if appropriate, would be based on VISIBLE DAMAGE, or by other in plant conditions, via HA6.
EAL #3 This EAL addresses the effect of internal flooding caused by events such as component failures, equipment misalignment, or outage activity mishaps.
Escalation of this emergency classification level, if appropriate, would be via HA6, or by other plant conditions.
EAL #4 This EAL addresses main turbine rotating component failures of sufficient magnitude to cause observable damage to the turbine casing or to the seals of the turbine generator. Generator seal damage observed after generator purge does not meet the intent of this EAL because it did not impact normal operation of the plant.
Of major concern is the potential for leakage of combustible fluids (lubricating oils) and gases (hydrogen cooling) to the plant environs. Actual FIRES and flammable gas build up are appropriately classified via HU4 and HU5.
to 0CAN121102 Page 72 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HU6 This EAL is consistent with the definition of an NUE while maintaining the anticipatory nature desired and recognizing the risk to non-safety related equipment.
Escalation of this emergency classification level, if appropriate, would be to HA6 based on damage done by PROJECTILES generated by the failure or in conjunction with a steam generator tube rupture. These latter events would be classified by the radiological (A) ICs or Fission Product Barrier (F) ICs.
EALs #5 and #6 EALs #5 and #6 are based on the levels of Lake Dardanelle at which the site will take specific action to reduce the impact of the lake level on plant safety by initiating plant shutdown.
Reference Documents:
: 1. OP-1203.025, Natural Emergencies
: 2. OP-2203.008, Natural Emergencies
: 3. Unit 1 FSAR
: 4. Unit 2 FSAR to 0CAN121102 Page 73 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HA1 Initiating Condition - ALERT HOSTILE ACTION within the OWNER CONTROLLED AREA or airborne attack threat Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2)
: 1. A HOSTILE ACTION is occurring or has occurred within the OWNER CONTROLLED AREA as reported by ANO Security Shift Supervision.
OR
: 2. A validated notification from NRC of an airliner attack threat within 30 minutes of the site.
Basis:
NOTE:      Timely and accurate communication between Security Shift Supervision and the Control Room is crucial for the implementation of effective Security EALs.
These EALs address the contingency for a very rapid progression of events, such as that experienced on September 11, 2001. They are not premised solely on the potential for a radiological release. Rather the issue includes the need for rapid assistance due to the possibility for significant and indeterminate damage from additional air, land or water attack elements.
The fact that the site is under serious attack or is an identified attack target with minimal time available for further preparation or additional assistance to arrive requires a heightened state of readiness and implementation of protective measures that can be effective (such as on-site evacuation, dispersal or sheltering).
EAL #1 This EAL addresses the potential for a very rapid progression of events due to a HOSTILE ACTION. It is not intended to address incidents that are accidental events or acts of civil disobedience, such as small aircraft impact, hunters, or physical disputes between employees within the OWNER CONTROLLED AREA. Those events are adequately addressed by other EALs.
Note that this EAL is applicable for any HOSTILE ACTION occurring, or that has occurred, in the OWNER CONTROLLED AREA. This includes Independent Spent Fuel Storage Installations that may be outside the PROTECTED AREA but still in the OWNER CONTROLLED AREA.
to 0CAN121102 Page 74 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HA1 EAL #2 This EAL addresses the immediacy of an expected threat arrival or impact on the site within a relatively short time.
The intent of this EAL is to ensure that notifications for the airliner attack threat are made in a timely manner and that Offsite Response Organizations and plant personnel are at a state of heightened awareness regarding the credible threat. Airliner is meant to be a large aircraft with the potential for causing significant damage to the plant.
This EAL is met when a plant receives information regarding an airliner attack threat from NRC and the airliner is within 30 minutes of the plant. Only the plant to which the specific threat is made need declare the Alert.
The NRC Headquarters Operations Officer (HOO) will communicate to the licensee if the threat involves an airliner (airliner is meant to be a large aircraft with the potential for causing significant damage to the plant). The status and size of the plane may be provided by NORAD through the NRC.
to 0CAN121102 Page 75 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HA2 Initiating Condition - ALERT Other conditions exist which in the judgment of the SM / TSC Director / EOF Director warrant declaration of an Alert Operating Mode Applicability: All Example Emergency Action Level(s):
: 1. Other conditions exist which in the judgment of the SM / TSC Director / EOF Director indicate that events are in progress or have occurred which 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 because of HOSTILE ACTION. Any releases are expected to be limited to small fractions of the EPA Protective Action Guideline exposure levels.
Basis:
This EAL addresses unanticipated conditions not addressed explicitly elsewhere, but that warrant declaration of an emergency because conditions exist which are believed by the SM /
TSC Director / EOF Director to fall under the Alert emergency classification level.
to 0CAN121102 Page 76 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HA3 Initiating Condition - ALERT Control room evacuation has been initiated Operating Mode Applicability: All Example Emergency Action Level(s):
: 1. Alternate Shutdown procedure requires Control Room evacuation:
Unit 1: 1203.002, Alternate Shutdown Unit 2: 2203.014, Alternate Shutdown Basis:
With the Control Room evacuated, additional support, monitoring and direction through the Technical Support Center and/or other emergency response facilities may be necessary.
Inability to establish plant control from outside the Control Room will escalate this event to a Site Area Emergency.
to 0CAN121102 Page 77 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HA4 Initiating Condition - ALERT FIRE or EXPLOSION affecting the operability of plant safety systems required to establish or maintain safe shutdown Operating Mode Applicability: All Example Emergency Action Level(s):
: 1. FIRE or EXPLOSION resulting in VISIBLE DAMAGE to any Table H1 structure or area containing safety systems or components or Control Room indication of degraded performance of those safety systems.
Table H1 Unit 1                                         Unit 2 CA-1 & HP Office Area                               2A3 Room Condensate Demineralizer Room                       2A4, 2D02, & East Battery Room Corridor 98                                         2B53 Room Fire Area C                                         2B63 Room Lower North Electrical Penetration Room             2B9/2B10 Room (LNEPR)                                             2Y11/13 Equipment Room Lower South Electrical Equipment Room (LSEER)       Auxiliary Building 317 General Access
 / Air Compressor Room Auxiliary Building 335' Lower South Electrical Penetration Room Auxiliary Building 354' (LSEPR)
B Engineered Safeguards Features (ESF)
Lower South Piping Penetration Room (LSPPR)
Room Main Steam Isolation Violation (MSIV) Room Corridor Behind Door 340 North Engineered Safeguards (ES) SWGR Room Turbine Building (A4) 2A1, 2A2, 2H1, 2H2 Area South ES SWGR Room                                     354' West wall of Demineralizer area Turbine Building                                       368' West Heater Deck north of north A1, A2, H1, H2 SWGR area                              Switchgear (SWGR) Room (2A3) and 354' Bowling Alley north end west of                  East of LNEPR Breathing Air compressor room                Intake Structure 354' or 366' 368' West Heater Deck from LSEER (orange LNEPR door) along east wall of ES SWGR Rooms to Corridor 98 door.                            LSEPR Upper North Electrical Penetration Room             Motor-Generator (MG) Set Room (UNEPR) / Hot Tool Room / Decon Room                Steam Pipe Area Upper South Electrical Penetration Room             Hot Machine Shop (USEPR)                                             UNEPR, UNPPR, LNPPR, USPPR Upper South Piping Penetration Room (USPPR) to 0CAN121102 Page 78 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HA4 Basis:
VISIBLE DAMAGE is used to identify the magnitude of the FIRE or EXPLOSION and to discriminate against minor FIRES and EXPLOSIONS.
The reference to structures or areas containing safety systems or components is included to discriminate against FIRES or EXPLOSIONS in areas having a low probability of affecting safe operation. The significance here is not that a safety system was degraded but the fact that the FIRE or EXPLOSION was large enough to cause damage to these systems.
The use of VISIBLE DAMAGE should not be interpreted as mandating a lengthy damage assessment prior to classification. The declaration of an Alert and the activation of the Technical Support Center will provide the SM/TSC Director/EOF Director with the resources needed to perform detailed damage assessments.
The SM / TSC Director / EOF Director also needs to consider any security aspects of the EXPLOSION.
Escalation of this emergency classification level, if appropriate, will be based on System Malfunction (S), Fission Product Barrier Degradation (F) or Abnormal Radiation Levels /
Radiological Effluent (A) ICs.
to 0CAN121102 Page 79 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HA5 Initiating Condition - ALERT Access to a VITAL AREA is prohibited due to toxic, corrosive, asphyxiant or flammable gases which jeopardize operation of operable equipment required to maintain safe operations or safely shutdown the reactor Operating Mode Applicability: All Example Emergency Action Level(s):
Note:    If the equipment in the stated area was already inoperable, or out of service, before the event occurred, then this EAL should not be declared as it will have no adverse impact on the ability of the plant to safely operate or safely shutdown beyond that already allowed by Technical Specifications at the time of the event.
: 1. Access to a VITAL AREA is prohibited due to toxic, corrosive, asphyxiant or flammable gases which jeopardize operation of systems required to maintain safe operations or safely shutdown the reactor.
Basis:
Gases in a VITAL AREA can affect the ability to safely operate or safely shutdown the reactor.
The fact that SCBAs may be worn does not eliminate the need to declare the event.
Declaration should not be delayed for confirmation from atmospheric testing if the atmosphere poses an immediate threat to life and health or an immediate threat of severe exposure to gases. This could be based upon documented analysis, indication of personal ill effects from exposure, or operating experience with the hazards.
If the equipment in the stated area was already inoperable, or out of service, before the event occurred, then this EAL should not be declared as it will have no adverse impact on the ability of the plant to safely operate or safely shutdown beyond that already allowed by Technical Specifications at the time of the event.
An asphyxiant is a gas capable of reducing the level of oxygen in the body to dangerous levels.
Most commonly, asphyxiants work by merely displacing air in an enclosed environment. This reduces the concentration of oxygen below the normal level of around 19%, which can lead to breathing difficulties, unconsciousness or even death.
An uncontrolled release of flammable gasses within a facility structure has the potential to affect safe operation of the plant by limiting either operator or equipment operations due to the potential for ignition and resulting equipment damage/personnel injury. Flammable gasses, such as hydrogen and acetylene, are routinely used to maintain plant systems (hydrogen) or to repair equipment/components (acetylene - used in welding). This EAL assumes concentrations of flammable gasses which can ignite/support combustion.
Escalation of this emergency classification level, if appropriate, will be based on System Malfunction (S), Fission Product Barrier Degradation (F) or Abnormal Radiation Levels /
Radioactive Effluent (A) ICs.
to 0CAN121102 Page 80 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HA6 Initiating Condition - ALERT Natural or destructive phenomena affecting VITAL AREAS Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2 or 3 or 4 or 5 or 6)
: 1. a. Seismic event > Operating Basis Earthquake (OBE) as indicated by annunciation of the 0.1g acceleration alarm.
AND
: b. Earthquake confirmed by any of the following:
Earthquake felt in plant National Earthquake Center Control Room indication of degraded performance of systems required for the safe shutdown of the plant OR
: 2. Tornado striking or high winds > 67 mph resulting in VISIBLE DAMAGE to any of the following structures/equipment containing safety systems or components or Control Room indication of degraded performance of those safety systems:
Reactor Building                      Turbine Building Intake Structure                      Q Condensate Storage Tank (QCST)
Ultimate Heat Sink                    Control Room Startup Transformers                  Auxiliary Building Diesel Fuel Vault                     Borated Water Storage Tank (BWST)
Refueling Water Tank (RWT)
OR
: 3. Internal flooding in any of the following areas resulting in an electrical shock hazard that precludes access to operate or monitor safety equipment or Control Room indication of degraded performance of those safety systems:
Intake Structure                      Turbine Building Ultimate Heat Sink                    Control Room BWST / RWT                            Startup Transformers Auxiliary Building                    Diesel Fuel Vault QCST OR to 0CAN121102 Page 81 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HA6
: 4. Turbine failure-generated PROJECTILES resulting in VISIBLE DAMAGE to or penetration of any of the structures/equipment in Table H2 containing safety systems or components or Control Room indication of degraded performance of those safety systems:
Table H2 Reactor Building          Turbine Building Intake Structure               QCST Ultimate Heat Sink           Control Room BWST/RWT              Startup Transformers Auxiliary Building         Diesel Fuel Vault OR
: 5. Lake Dardanelle level < 335 feet and Emergency Cooling Pond inoperable.
OR
: 6. Vehicle crash resulting in VISIBLE DAMAGE to any of the structures/equipment in Table H2 containing safety systems or components or Control Room indication of degraded performance of those safety systems:
Table H2 Reactor Building          Turbine Building Intake Structure               QCST Ultimate Heat Sink           Control Room BWST/RWT              Startup Transformers Auxiliary Building         Diesel Fuel Vault Basis:
These EALs escalate from HU6 in that the occurrence of the event has resulted in VISIBLE DAMAGE to plant structures or areas containing equipment necessary for a safe shutdown, or has caused damage to the safety systems in those structures evidenced by Control Room indications of degraded system response or performance. The occurrence of VISIBLE DAMAGE and/or degraded system response is intended to discriminate against lesser events.
The initial report should not be interpreted as mandating a lengthy damage assessment prior to classification. No attempt is made in this EAL to assess the actual magnitude of the damage.
The significance here is not that a particular system or structure was damaged, but rather, that the event was of sufficient magnitude to cause this degradation.
Escalation of this emergency classification level, if appropriate, would be based on System Malfunction (S) ICs.
to 0CAN121102 Page 82 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HA6 EAL #1 Seismic events of this magnitude can result in a VITAL AREA being subjected to forces beyond design limits, and thus damage may be assumed to have occurred to plant safety systems.
The National Earthquake Center can confirm if an earthquake has occurred in the area of the plant.
EAL #2 This EAL is based on a tornado striking (touching down) or high winds that have caused VISIBLE DAMAGE to structures containing functions or systems required for safe shutdown of the plant. The high wind value in EAL #2 is conservatively based on the SAR design basis for Unit 1 of 67 mph. Unit 2 Design basis is 80 mph.
EAL #3 This EAL addresses the effect of internal flooding caused by events such as component failures, equipment misalignment, or outage activity mishaps. It is based on the degraded performance of systems, or has created industrial safety hazards (e.g., electrical shock) that preclude necessary access to operate or monitor safety equipment. The inability to access, operate or monitor safety equipment represents an actual or substantial potential degradation of the level of safety of the plant.
Flooding as used in this EAL describes a condition where water is entering the room faster than installed equipment is capable of removal, resulting in a rise of water level within the room.
Classification of this EAL should not be delayed while corrective actions are being taken to isolate the water source.
EAL #4 This EAL addresses the threat to safety related equipment imposed by PROJECTILEs generated by main turbine rotating component failures. Therefore, this EAL is consistent with the definition of an ALERT in that the potential exists for actual or substantial potential degradation of the level of safety of the plant.
EAL #5 This EAL addresses vehicle crashes within the PROTECTED AREA that result in VISIBLE DAMAGE to VITAL AREAS or indication of damage to safety structures, systems, or components containing functions and systems required for safe shutdown of the plant.
EAL #6 EAL #6 addresses site specific phenomena which has the potential for the loss of primary and secondary heat sink.
to 0CAN121102 Page 83 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HA6 Reference Documents:
: 1. OP-1203.025, Natural Emergencies
: 2. OP-2203.008, Natural Emergencies
: 3. Unit 1 FSAR
: 4. Unit 2 FSAR to 0CAN121102 Page 84 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HS1 Initiating Condition - SITE AREA EMERGENCY HOSTILE ACTION within the PROTECTED AREA Operating Mode Applicability: All Example Emergency Action Level(s):
: 1. A HOSTILE ACTION is occurring or has occurred within the PROTECTED AREA as reported by ANO Security Shift Supervision.
Basis:
This condition represents an escalated threat to plant safety above that contained in the Alert in that a HOSTILE FORCE has progressed from the OWNER CONTROLLED AREA to the PROTECTED AREA.
This EAL addresses the contingency for a very rapid progression of events, such as that experienced on September 11, 2001. It is not premised solely on the potential for a radiological release. Rather the issue includes the need for rapid assistance due to the possibility for significant and indeterminate damage from additional air, land or water attack elements.
The fact that the site is under serious attack with minimal time available for further preparation or additional assistance to arrive requires Offsite Response Organization readiness and preparation for the implementation of protective measures.
This EAL addresses the potential for a very rapid progression of events due to a HOSTILE ACTION. It is not intended to address incidents that are accidental events or acts of civil disobedience, such as small aircraft impact, hunters, or physical disputes between employees within the PROTECTED AREA. Those events are adequately addressed by other EALs.
Escalation of this emergency classification level, if appropriate, would be based on actual plant status after impact or progression of attack.
to 0CAN121102 Page 85 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HS2 Initiating Condition - SITE AREA EMERGENCY Other conditions exist which in the judgment of the SM / TSC Director / EOF Director warrant declaration of a Site Area Emergency Operating Mode Applicability: All Example Emergency Action Level(s):
: 1. Other conditions exist which in the judgment of the SM / TSC Director / EOF Director indicate that events are in progress or have occurred which involve actual or likely major failures of plant functions needed for protection of the public 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) that prevent effective access to equipment needed for the protection of the public. Any releases are not expected to result in exposure levels which exceed EPA Protective Action Guideline exposure levels beyond the site boundary.
Basis:
This EAL addresses unanticipated conditions not addressed explicitly elsewhere but that warrant declaration of an emergency because conditions exist which are believed by the SM /
TSC Director / EOF Director to fall under the emergency classification level description for Site Area Emergency.
to 0CAN121102 Page 86 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HS3 Initiating Condition - SITE AREA EMERGENCY Control Room evacuation has been initiated and plant control cannot be established Operating Mode Applicability: All Example Emergency Action Level(s):
: 1. a. Control room evacuation has been initiated AND
: b. Control of the plant cannot be established in accordance with the following procedures within 15 minutes:
Unit 1: 1203.002, Alternate Shutdown Unit 2: 2203.014, Alternate Shutdown Basis:
The intent of this IC is to capture those events where control of the plant cannot be reestablished in a timely manner. In this case, expeditious transfer of control of safety systems has not occurred (although fission product barrier damage may not yet be indicated).
The intent of the EAL is to establish control of important plant equipment and knowledge of important plant parameters in a timely manner. Primary emphasis should be placed on those components and instruments that supply protection for and information about safety functions such as reactivity control (ability to shutdown the reactor and maintain it shutdown), RCS inventory (ability to cool the core), and decay heat removal (ability to maintain a heat sink).
The determination of whether or not control is established at the remote shutdown panel is based on SM / TSC Director / EOF Director judgment. The SM / TSC Director / EOF Director is expected to make a reasonable, informed judgment within 15 minutes that the plant staff has control of the plant from the remote shutdown panel.
Escalation of this emergency classification level, if appropriate, would be by Fission Product Barrier Degradation (F) or Abnormal Radiation Levels/Radiological Effluent (A) EALs.
to 0CAN121102 Page 87 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HG1 Initiating Condition - GENERAL EMERGENCY HOSTILE ACTION resulting in loss of physical control of the facility Operating Mode Applicability: All Example Emergency Action Level(s): (1 or 2)
: 1. A HOSTILE ACTION has occurred such that plant personnel are unable to operate equipment required to maintain safety functions.
OR
: 2. A HOSTILE ACTION has caused failure of Spent Fuel Cooling Systems and IMMINENT fuel damage is likely for a freshly off-loaded reactor core in pool.
Basis:
EAL #1 This EAL encompasses conditions under which a HOSTILE ACTION has resulted in a loss of physical control of VITAL AREAS (containing vital equipment or controls of vital equipment) required to maintain safety functions and control of that equipment cannot be transferred to and operated from another location. These safety functions are reactivity control (ability to shut down the reactor and keep it shutdown) RCS inventory (ability to cool the core), and secondary heat removal (ability to maintain a heat sink).
Loss of physical control of the Control Room or remote shutdown/alternate shutdown capability alone may not prevent the ability to maintain safety functions per se. Design of the remote shutdown/alternate shutdown capability and the location of the transfer switches should be taken into account. Primary emphasis should be placed on those components and instruments that supply protection for and information about safety functions.
If control of the plant equipment necessary to maintain safety functions can be transferred to another location, then the threshold is not met.
EAL #2 This EAL addresses failure of spent fuel cooling systems as a result of HOSTILE ACTION if IMMINENT fuel damage is likely, such as when a freshly off-loaded reactor core is in the spent fuel pool. At ANO, the term freshly off-loaded reactor core refers to fuel that has been discharged from the core and stored in the spent fuel pool for a period of LESS THAN one year.
to 0CAN121102 Page 88 of 110 HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY HG2 Initiating Condition - GENERAL EMERGENCY Other conditions exist which in the judgment of the SM / TSC Director / EOF Director warrant declaration of a General Emergency Operating Mode Applicability: All Example Emergency Action Level(s):
: 1. Other conditions exist which in the judgment of the SM / TSC Director / EOF Director indicate that events are in progress or have occurred which involve actual or IMMINENT substantial core degradation or melting with potential for loss of containment integrity or HOSTILE ACTION that results in an actual loss of physical control of the facility. Releases can be reasonably expected to exceed EPA Protective Action Guideline exposure levels offsite for more than the immediate site area.
Basis:
This EAL addresses unanticipated conditions not addressed explicitly elsewhere but that warrant declaration of an emergency because conditions exist which are believed by the SM /
TSC Director / EOF Director to fall under the emergency classification level description for General Emergency.
to 0CAN121102 Page 89 of 110 SYSTEM MALFUNCTION to 0CAN121102 Page 90 of 110 SYSTEM MALFUNCTION SU1 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT Loss of all offsite AC power to Vital 4.16 KV busses  15 minutes Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s):
Note:     The SM should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. Loss of all offsite AC power to Vital 4.16 KV busses  15 minutes.
Basis:
Prolonged loss of offsite AC power reduces required redundancy and potentially degrades the level of safety of the plant by rendering the plant more vulnerable to a complete loss of AC power to emergency busses.
Fifteen minutes was selected as a threshold to exclude transient or momentary losses of off-site power.
Reference Documents:
: 1. 1202.007, Degraded Power
: 2. 1202.008, Blackout
: 3. 2202.007, Loss of Off-Site Power
: 4. 2202.008, Station Blackout to 0CAN121102 Page 91 of 110 SYSTEM MALFUNCTION SU6 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT UNPLANNED loss of safety system annunciation or indication in the Control Room  15 minutes Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s):
Note:      The SM should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. UNPLANNED Loss of > approximately 75% of the following > 15 minutes:
: a. Control Room annunciators associated with safety systems.
OR
: b. Control Room safety system indication.
Basis:
This IC and its associated EAL are intended to recognize the difficulty associated with monitoring changing plant conditions without the use of a major portion of the annunciation or indication equipment.
Recognition of the availability of computer based indication equipment is considered e.g.,
SPDS, plant computer, etc.
"Planned" loss of annunciators or indicators includes scheduled maintenance and testing activities.
Quantification is arbitrary, however, it is estimated that if approximately 75% of the safety system annunciators or indicators are lost, there is an increased risk that a degraded plant condition could go undetected. It is not intended that plant personnel perform a detailed count of the instrumentation lost but use the value as a judgment threshold for determining the severity of the plant conditions.
It is further recognized that most plant designs provide redundant safety system indication powered from separate uninterruptible power supplies. While failure of a large portion of annunciators is more likely than a failure of a large portion of indications, the concern is included in this EAL due to difficulty associated with assessment of plant conditions. The loss of specific, or several, safety system indicators should remain a function of that specific system or component operability status. This will be addressed by the specific Technical Specification.
to 0CAN121102 Page 92 of 110 SYSTEM MALFUNCTION SU6 The initiation of a Technical Specification imposed plant shutdown related to the instrument loss will be reported via 10 CFR 50.72. If the shutdown is not in compliance with the Technical Specification action, the NUE is based on SU11 "Inability to reach required operating mode within Technical Specification limits."
Indicators associated with safety systems are those indicators for reactivity control, core cooling, maintaining reactor coolant system integrity or maintaining containment integrity.
Fifteen minutes was selected as a threshold to exclude transient or momentary power losses.
This NUE will be escalated to an Alert based on a concurrent loss of compensatory indications or if a SIGNIFICANT TRANSIENT is in progress during the loss of annunciation or indication (SA6).
Reference Documents:
: 1. 1203.043, Loss Control Room Annunciators
: 2. 2203.042, Loss of Control Room Annunciators to 0CAN121102 Page 93 of 110 SYSTEM MALFUNCTION SU7 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT RCS leakage Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s): (1 or 2)
: 1. Unidentified or pressure boundary leakage > 10 gpm.
OR
: 2. Identified leakage > 25 gpm.
Basis:
With respect to this IC, RCS leakage is defined as a loss of RCS inventory due to a leak in the RCS or a supporting system that is not or cannot be isolated within 10 minutes. For example, isolation of the RCS Letdown (purification) system is a standard abnormal operating procedure action and may prevent unnecessary classifications when a non-RCS leakage path leak exists.
However, the intent of this condition is met if attempts to isolate the RCS leak are NOT successful.
This IC is included as an NUE because it may be a precursor of more serious conditions and, as result, is considered to be a potential degradation of the level of safety of the plant. The 10 gpm value for the unidentified or pressure boundary leakage was selected as it is observable with normal Control Room indications. Lesser values must generally be determined through time-consuming surveillance tests (e.g., mass balances).
Relief valve normal operation should be excluded from this IC. However, a relief valve that operates and fails to close per design should be considered applicable to this IC if the relief valve cannot be isolated.
The EAL for identified leakage is set at a higher value due to the lesser significance of identified leakage in comparison to unidentified or pressure boundary leakage. Steam generator tube leakage is identified leakage. In either case, escalation of this IC to the Alert level is via Fission Product Barrier Degradation (F) ICs.
to 0CAN121102 Page 94 of 110 SYSTEM MALFUNCTION SU8 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT Loss of all onsite or offsite communications capabilities Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s): (1 or 2)
: 1. Loss of all Table M1 onsite communications methods affecting the ability to perform routine operations.
OR
: 2. Loss of all Table M2 offsite communications methods affecting the ability to perform offsite notifications.
Table M1 Table M2 Onsite Communications Offsite Communications Methods Methods Station radio system                  All telephone lines (commercial and microwave)
Plant paging system                                           ENS In-plant telephones Gaitronics Basis:
The purpose of this IC and its associated EALs is to recognize a loss of communications capability that either defeats the plant operations staff ability to perform routine tasks necessary for plant operations or the ability to communicate issues with offsite authorities.
The availability of one method of ordinary offsite communications is sufficient to inform federal, state, and local authorities of plant problems. This EAL is intended to be used only when extraordinary means (e.g., relaying of information from non-routine radio transmissions, individuals being sent to off-site locations, etc.) are being used to make communications possible.
Reference Documents:
: 1. 1903.062, Communications System Operating Procedure to 0CAN121102 Page 95 of 110 SYSTEM MALFUNCTION SU9 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT Fuel clad degradation Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s): (1 or 2)
: 1. Failed Fuel Iodine radiation monitor reading indicates fuel clad degradation > Technical Specification allowable limits:
Unit 1:
RI-1237S reads > 1.3 x 105 counts per minute Unit 2:
2RITS-4806B reads > .65 x 105 counts per minute OR
: 2. RCS sample activity value indicating fuel clad degradation > Technical Specification allowable limits:
uCi/gm Dose Equivalent I-131 for more than 48 hours OR Unit 1:
60 uCi/gm Dose Equivalent I-131 Unit 2:
         > 60 uCi/gm Dose Equivalent I-131 OR Unit 1:
         > 2200 &#xb5;Ci/gm Dose Equivalent Xe-133 for more than 48 hours Unit 2:
         > 3100 &#xb5;Ci/gm Dose Equivalent Xe-133 for more than 48 hours to 0CAN121102 Page 96 of 110 SYSTEM MALFUNCTION SU9 Basis:
This IC is included because it is a precursor of more serious conditions and, as result, is considered to be a potential degradation of the level of safety of the plant.
EAL #1 This threshold addresses the Letdown Radiation Monitor readings that provide indication of a degradation of fuel clad integrity.
EAL #2 This EAL addresses coolant samples exceeding coolant technical specifications for transient iodine spiking limits and coolant samples exceeding coolant Technical Specifications for nominal operating limits for the time period specified in the Technical Specifications.
Escalation of this IC to the Alert level is via the Fission Product Barriers (F).
Reference Documents:
: 1. ANO1 Technical Specifications
: 2. ANO2 Technical Specifications to 0CAN121102 Page 97 of 110 SYSTEM MALFUNCTION SU10 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT Inadvertent criticality Operating Mode Applicability: Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s):
: 1. UNPLANNED sustained positive startup rate observed on nuclear instrumentation.
Basis:
This IC addresses inadvertent criticality events. This IC indicates a potential degradation of the level of safety of the plant, warranting an NUE classification. This IC excludes inadvertent criticalities that occur during planned reactivity changes associated with reactor startups (e.g.,
criticality earlier than estimated).
This condition can be identified using the startup rate meter. The term sustained is used in order to allow exclusion of expected short term positive startup rates from planned control rod movements for (such as shutdown bank withdrawal). These short term positive startup rates are the result of the rise in neutron population due to subcritical multiplication.
Escalation would be by the Fission Product Barrier Table (F), as appropriate to the operating mode at the time of the event.
Reference Documents:
: 1. 1203.012G, Annunciator K08 Corrective Action
: 2. 2203.012D, Annunciator 2K04 Corrective Action to 0CAN121102 Page 98 of 110 SYSTEM MALFUNCTION SU11 Initiating Condition - NOTIFICATION OF UNUSUAL EVENT Inability to reach required operating mode within Technical Specification limits Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s):
: 1. Plant is not brought to required operating mode within Technical Specifications LCO Action Statement time.
Basis:
Limiting Conditions of Operation (LCOs) require the plant to be brought to a required operating mode when the Technical Specification required configuration cannot be restored. Depending on the circumstances, this may or may not be an emergency or precursor to a more severe condition. In any case, the initiation of plant shutdown required by the site Technical Specifications requires a four hour report under 10 CFR 50.72 (b) Non-emergency events. The plant is within its safety envelope when being shut down within the allowable action statement time in the Technical Specifications. An immediate NUE is required when the plant is not brought to the required operating mode within the allowable action statement time in the Technical Specifications. Declaration of an NUE is based on the time at which the LCO-specified action statement time period elapses under the site Technical Specifications and is not related to how long a condition may have existed.
Reference Documents:
: 1. ANO2 Technical Specifications
: 2. ANO1 Technical Specifications to 0CAN121102 Page 99 of 110 SYSTEM MALFUNCTION SA1 Initiating Condition - ALERT AC power capability to Vital 4.16 KV busses reduced to a single power source  15 minutes such that any additional single failure would result in station blackout Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s):
Note:     The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. a. AC power capability to Vital 4.16 KV busses reduced to a single power source 15 minutes.
AND
: b. Any additional single power source failure will result in station blackout.
Basis:
The condition indicated by this IC is the degradation of the offsite and onsite AC power systems such that any additional single failure would result in a station blackout. This condition could occur due to a loss of offsite power with a concurrent failure of all but one emergency generator to supply power to its emergency busses. Another related condition could be the loss of all offsite power and loss of onsite emergency generators with only one train of emergency busses being backfed from the unit main generator, or the loss of onsite emergency generators with only one train of emergency busses being backfed from offsite power. The subsequent loss of this single power source would escalate the event to a Site Area Emergency in accordance with SS1.
Fifteen minutes was selected as a threshold to exclude transient or momentary losses of power.
The EAL allows credit for operation of the Alternate AC Diesel Generator.
Reference Documents:
: 1. 1202.007, Degraded Power
: 2. 1202.008, Blackout
: 3. 2202.007, Loss of Off-Site Power
: 4. 2202.008, Station Blackout
: 5. 2104.037, Alternate AC Diesel Generator Operations to 0CAN121102 Page 100 of 110 SYSTEM MALFUNCTION SA3 Initiating Condition - ALERT Automatic trip fails to shutdown the reactor and the manual actions taken from the reactor control console are successful in shutting down the reactor Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Example Emergency Action Level(s):
: 1. a. An automatic trip failed to shutdown the reactor as indicated by reactor power  5%.
AND
: b. Manual actions taken at the reactor control console successfully shutdown the reactor as indicated by reactor power < 5%.
Basis:
Manual trip actions taken at the reactor control console are any set of actions by the Reactor Operator(s) which causes or should cause control rods to be rapidly inserted into the core and shuts down the reactor. Any action taken to trip the reactor from any location other than panel C03 (Unit 1) or 2C03/2C14 (Unit 2) constitutes a failure of the manual trip function. Failure of manual trip would escalate the event to a Site Area Emergency (SS3).
This condition indicates failure of the automatic protection system to trip the reactor. This condition is more than a potential degradation of a safety system in that a front line automatic protection system did not function in response to a plant transient. Thus the plant safety has been compromised because design limits of the fuel may have been exceeded. An Alert is indicated because conditions may exist that lead to potential loss of fuel clad or RCS and because of the failure of the Reactor Protection System to automatically shutdown the plant.
If manual actions taken at the reactor control console fail to shutdown the reactor, the event would escalate to a Site Area Emergency.
to 0CAN121102 Page 101 of 110 SYSTEM MALFUNCTION SA6 Initiating Condition - ALERT UNPLANNED loss of safety system annunciation or indication in the Control Room with either (1) a SIGNIFICANT TRANSIENT in progress, or (2) compensatory indicators unavailable Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s):
Note:     The SM/TSC Director/EOF Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. a. UNPLANNED loss of > approximately 75% of the following  15 minutes:
Control Room annunciators associated with safety systems OR Control Room safety system indication AND
: b. Either of the following:
A SIGNIFICANT TRANSIENT is in progress OR Compensatory indications are unavailable.
Basis:
This IC is intended to recognize the difficulty associated with monitoring changing plant conditions without the use of a major portion of the annunciation or indication equipment during a SIGNIFICANT TRANSIENT.
Recognition of the availability of computer based indication equipment is considered (e.g.,
SPDS, plant computer, etc.).
"Planned" loss of annunciators or indicators includes scheduled maintenance and testing activities.
to 0CAN121102 Page 102 of 110 SYSTEM MALFUNCTION SA6 Quantification is arbitrary, however, it is estimated that if approximately 75% of the safety system annunciators or indicators are lost, there is an increased risk that a degraded plant condition could go undetected. It is not intended that plant personnel perform a detailed count of the instrumentation lost but use the value as a judgment threshold for determining the severity of the plant conditions. It is also not intended that the Shift Manager be tasked with making a judgment decision as to whether additional personnel are required to provide increased monitoring of system operation.
It is further recognized that most plant designs provide redundant safety system indication powered from separate uninterruptible power supplies. While failure of a large portion of annunciators is more likely than a failure of a large portion of indications, the concern is included in this EAL due to difficulty associated with assessment of plant conditions. The loss of specific, or several, safety system indicators should remain a function of that specific system or component operability status. This will be addressed by the specific Technical Specification.
The initiation of a Technical Specification imposed plant shutdown related to the instrument loss will be reported via 10 CFR 50.72. If the shutdown is not in compliance with the Technical Specification action, the NUE is based on SU11 "Inability to reach required operating mode within Technical Specification limits."
Indicators associated with safety systems are those indicators for reactivity control, core cooling, maintaining reactor coolant system integrity or maintaining containment integrity.
"Compensatory indications" in this context includes computer based information such as SPDS, QSPDS, COLSS, etc. If both a major portion of the annunciation system and all computer monitoring are unavailable, the Alert is required.
Fifteen minutes was selected as a threshold to exclude transient or momentary power losses.
This Alert will be escalated to a Site Area Emergency if the operating crew cannot monitor the transient in progress due to a concurrent loss of compensatory indications with a SIGNIFICANT TRANSIENT in progress during the loss of annunciation or indication.
Reference Documents:
: 1. 1015.037, Post Transient Review
: 2. 1203.043, Loss of Control Room Annunciators
: 3. 2203.042, Loss of Control Room Annunciators to 0CAN121102 Page 103 of 110 SYSTEM MALFUNCTION SS1 Initiating Condition - SITE AREA EMERGENCY Loss of all offsite and all onsite AC power to Vital 4.16 KV busses  15 minutes Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s):
Note:     The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. Loss of all offsite and all onsite AC power to Vital 4.16 KV busses  15 minutes.
Basis:
Loss of all AC power to emergency busses compromises all plant safety systems requiring electric power including Shutdown Cooling, ECCS, Containment Heat Removal and the Ultimate Heat Sink. Prolonged loss of all AC power to emergency busses will lead to loss of Fuel Clad, RCS, and Containment, thus this event can escalate to a General Emergency.
Fifteen minutes was selected as a threshold to exclude transient or momentary losses of offsite power.
Escalation to General Emergency is via Fission Product Barrier Degradation (F) or IC SG1, "Prolonged loss of all offsite and all onsite AC power to Vital 4.16 KV busses."
Reference Documents:
: 1. 1202.007, Degraded Power
: 2. 1202.008, Blackout
: 3. 2202.007, Loss of Off-Site Power
: 4. 2202.008, Station Blackout
: 5. 2104.037, Alternate AC Diesel Generator Operations to 0CAN121102 Page 104 of 110 SYSTEM MALFUNCTION SS3 Initiating Condition - SITE AREA EMERGENCY Automatic trip fails to shutdown the reactor and manual actions taken from the reactor control console are not successful in shutting down the reactor Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Example Emergency Action Level(s):
: 1. a. An automatic trip failed to shutdown the reactor.
AND
: b. Manual actions taken at the reactor control console do not shutdown the reactor as indicated by reactor power  5%.
Basis:
Under these conditions, the reactor is producing more heat than the maximum decay heat load for which the safety systems are designed and efforts to bring the reactor subcritical are unsuccessful. A Site Area Emergency is warranted because conditions exist that lead to IMMINENT loss or potential loss of both fuel clad and RCS.
Manual trip actions taken at the reactor control console are any set of actions by the Reactor Operator(s) which causes or should cause control rods to be rapidly inserted into the core and shuts down the reactor.
Manual trip actions are not considered successful if action away from panel C03 (Unit 1) or panels 2C03/2C14 (Unit 2) is required to trip the reactor. This EAL is still applicable even if actions taken away from panel C03 (Unit 1) or panels 2C03/2C14 (Unit 2) are successful in shutting the reactor down because the design limits of the fuel may have been exceeded or because of the gross failure of the Reactor Protection System to shutdown the plant.
Escalation of this event to a General Emergency would be due to a prolonged condition leading to an extreme challenge to either core-cooling or heat removal.
to 0CAN121102 Page 105 of 110 SYSTEM MALFUNCTION SS4 Initiating Condition - SITE AREA EMERGENCY Loss of all vital DC power  15 minutes Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s):
Note:    The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1.   < 105 volts on all Vital DC busses  15 minutes.
Basis:
Loss of all DC power compromises ability to monitor and control plant safety functions.
Prolonged loss of all DC power will cause core uncovering and loss of containment integrity when there is significant decay heat and sensible heat in the reactor system.
Fifteen minutes was selected as a threshold to exclude transient or momentary power losses.
Escalation to a General Emergency would occur by Abnormal Radiation Levels/Radiological Effluent (A), Fission Product Barrier Degradation (F).
to 0CAN121102 Page 106 of 110 SYSTEM MALFUNCTION SS6 Initiating Condition - SITE AREA EMERGENCY Inability to monitor a SIGNIFICANT TRANSIENT in progress Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s):
Note: The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. a. Loss of > approximately 75% of the following  15 minutes:
Control Room annunciators associated with safety systems OR Control Room safety system indication AND
: b. A SIGNIFICANT TRANSIENT is in progress.
AND
: c. Compensatory indications are unavailable.
Basis:
This IC is intended to recognize the threat to plant safety associated with the complete loss of capability of the control room staff to monitor plant response to a SIGNIFICANT TRANSIENT.
"Planned" and UNPLANNED actions are not differentiated since the loss of instrumentation of this magnitude is of such significance during a transient that the cause of the loss is not an ameliorating factor.
Quantification is arbitrary, however, it is estimated that if approximately 75% of the safety system annunciators or indicators are lost, there is an increased risk that a degraded plant condition could go undetected. It is not intended that plant personnel perform a detailed count of the instrumentation lost but use the value as a judgment threshold for determining the severity of the plant conditions. It is also not intended that the Shift Manager be tasked with making a judgment decision as to whether additional personnel are required to provide increased monitoring of system operation.
to 0CAN121102 Page 107 of 110 SYSTEM MALFUNCTION SS6 It is further recognized that most plant designs provide redundant safety system indication powered from separate uninterruptible power supplies. While failure of a large portion of annunciators is more likely than a failure of a large portion of indications, the concern is included in this EAL due to difficulty associated with assessment of plant conditions. The loss of specific, or several, safety system indicators should remain a function of that specific system or component operability status. This will be addressed by the specific Technical Specification.
The initiation of a Technical Specification imposed plant shutdown related to the instrument loss will be reported via 10 CFR 50.72. If the shutdown is not in compliance with the Technical Specification action, the NUE is based on SU11 "Inability to reach required operating mode within Technical Specification limits."
A Site Area Emergency is considered to exist if the Control Room staff cannot monitor safety functions needed for protection of the public while a significant transient is in progress.
Site specific indications needed to monitor safety functions necessary for protection of the public must include Control Room indications, computer generated indications and dedicated annunciation capability.
Indicators associated with safety systems are those indicators for reactivity control, core cooling, maintaining reactor coolant system integrity or maintaining containment integrity.
"Compensatory indications" in this context includes computer based information such as SPDS, QSPDS, COLSS, etc. This should include all computer systems available for this use depending on specific plant design and subsequent retrofits.
Fifteen minutes was selected as a threshold to exclude transient or momentary power losses.
Reference Documents:
: 1. 015.037, Post Transient Review
: 2. 1203.043, Loss of Control Room Annunciators
: 3. 2203.042, Loss of Control Room Annunciators to 0CAN121102 Page 108 of 110 SYSTEM MALFUNCTION SG1 Initiating Condition - GENERAL EMERGENCY Prolonged loss of all offsite and all onsite AC power to safety busses Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Hot Standby (Mode 3)
Hot Shutdown (Mode 4)
Example Emergency Action Level(s):
: 1. a. Loss of all offsite and all onsite AC power to safety busses.
AND
: b. Either of the following:
Restoration of at least one safety bus in < 4 hours is not likely.
OR Continuing degradation of core cooling based on Fission Product Barrier monitoring as indicated by CETs  700 &deg;F.
Basis:
Loss of all AC power to emergency busses compromises all plant safety systems requiring electric power including Shutdown Cooling, ECCS, Containment Heat Removal and the Ultimate Heat Sink. Prolonged loss of all AC power to emergency busses will lead to loss of fuel clad, RCS, and containment, thus warranting declaration of a General Emergency.
This IC is specified to assure that in the unlikely event of a prolonged station blackout, timely recognition of the seriousness of the event occurs and that declaration of a General Emergency occurs as early as is appropriate, based on a reasonable assessment of the event trajectory.
The likelihood of restoring at least one emergency bus should be based on a realistic appraisal of the situation since a delay in an upgrade decision based on only a chance of mitigating the event could result in a loss of valuable time in preparing and implementing public protective actions.
In addition, under these conditions, fission product barrier monitoring capability may be degraded.
to 0CAN121102 Page 109 of 110 SYSTEM MALFUNCTION SG1 Although it may be difficult to predict when power can be restored, it is necessary to give the SM / TSC Director / EOF Director a reasonable idea of how quickly (s)he may need to declare a General Emergency based on two major considerations:
: 1. Are there any present indications that core cooling is already degraded to the point that loss or potential loss of Fission Product Barriers is IMMINENT?
: 2. If there are no present indications of such core cooling degradation, how likely is it that power can be restored in time to assure that a loss of two barriers with a potential loss of the third barrier can be prevented?
Thus, indication of continuing core cooling degradation must be based on Fission Product Barrier monitoring with particular emphasis on SM / TSC Director / EOF Director judgment as it relates to IMMINENT loss or potential loss of fission product barriers and degraded ability to monitor fission product barriers.
Reference Documents:
: 1. Unit 1 Calculation 85-E-0072-02, Time from Loss of All AC Power to Loss of Subcooling
: 2. Unit 2 Calculation 85-E-0072-01, Time from Loss of All AC Power to Loss of Subcooling to 0CAN121102 Page 110 of 110 SYSTEM MALFUNCTION SG3 Initiating Condition - GENERAL EMERGENCY Automatic trip and all manual actions fail to shutdown the reactor and indication of an extreme challenge to the ability to cool the core exists Operating Mode Applicability: Power Operations (Mode 1)
Startup (Mode 2)
Example Emergency Action Level(s):
: 1. a. An automatic trip failed to shutdown the reactor AND
: b. All manual actions do not shutdown the reactor as indicated by reactor power  5%.
AND
: c. Either of the following exist or have occurred due to continued power generation:
CET temperatures at or approaching 1200 &deg;F OR Feedwater flow rate less than:
Unit 1:   430 gpm Unit 2: 485 gpm Basis:
Under these conditions, the reactor is producing more heat than the maximum decay heat load for which the safety systems are designed and efforts to bring the reactor subcritical are unsuccessful.
In the event either of these challenges exists at a time that the reactor has not been brought below the power associated with the safety system design a core melt sequence exists. In this situation, core degradation can occur rapidly. For this reason, the General Emergency declaration is intended to be anticipatory of the fission product barrier table declaration to permit maximum off-site intervention time.

Attachment 4 to 0CAN121102 Proposed EAL Matrix Chart and Review Table (for information) to 0CAN121102 Page 1 of 30 GENERAL EMERGENCY                                    SITE AREA EMERGENCY                                                  ALERT                                       UNUSUAL EVENT ABNORMAL RADIOLOGICAL EFFLUENTS AG1                                1 2 3 4 5 6 D      AS1                                1 2 3 4 5 6 D      AA1                               1 2 3 4 5 6 D      AU1                               1 2 3 4 5 6 D Offsite dose resulting from an actual                 Offsite dose resulting from an                        Any release of gaseous or liquid                     Any release of gaseous or liquid or IMMINENT release of gaseous                        actual or IMMINENT release of                         radioactivity to the environment                     radioactivity to the environment radioactivity > 1000 mR TEDE or                       gaseous radioactivity > 100 mR                        > 200 times the ODCM limits for                      > 2 times the ODCM limits for 5000 mR child thyroid CDE for the                     TEDE or 500 mR child thyroid CDE                       15 minutes                                          60 minutes actual or projected duration of the                   for the actual or projected duration Emergency Action Level(s):                           Emergency Action Level(s):
release using actual meteorology                      of the release NOTE:                                                NOTE:
Emergency Action Level(s):                            Emergency Action Level(s):
The SM / TSC Director / EOF Director should          The SM should not wait until the applicable NOTE:                                                 NOTE:                                                 not wait until the applicable time has               time has elapsed, but should declare the elapsed, but should declare the event as             event as soon as it is determined that the The SM / TSC Director / EOF Director should           The SM / TSC Director / EOF Director should soon as it is determined that the release            release duration has exceeded, or will likely not wait until the applicable time has elapsed,       not wait until the applicable time has duration has exceeded, or will likely exceed,        exceed, the applicable time. In the absence but should declare the event as soon as it is         elapsed, but should declare the event as the applicable time. In the absence of data          of data to the contrary, assume that the determined that the condition will likely             soon as it is determined that the condition to the contrary, assume that the release             release duration has exceeded the exceed the applicable time. If dose                   will likely exceed the applicable time. If dose duration has exceeded the applicable time if         applicable time if an ongoing release is assessment results are available, the                 assessment results are available, the an ongoing release is detected and the               detected and the release start time is classification should be based on EAL #2              classification should be based on EAL #2 release start time is unknown.                       unknown.
instead of EAL #1. Do not delay declaration           instead of EAL #1. Do not delay declaration awaiting dose assessment results.                     awaiting dose assessment results.                     1. VALID reading on Channel 7 on                     1. VALID reading on Channel 7 on
: 1. VALID reading on Channel 9 on                      1. VALID reading on Channel 9 on                           any of the following radiation                       any of the following radiation any of the following radiation                        any of the following radiation                        monitors > the reading shown for                     monitors > the reading shown for monitors > the reading shown for                      monitors > the reading shown for                       15 minutes:                                         60 minutes:
15 minutes:                                          15 minutes:                                             MONITORS - Unit 1                 LIMIT               MONITORS - Unit 1               LIMIT MONITORS - Unit 1                LIMIT                 MONITORS - Unit 1               LIMIT       RX-9820    Containment Purge          5.90E0 &#xb5;Ci/cc   RX-9820   Containment Purge         5.90E-2 &#xb5;Ci/cc RX-9825    Radwaste Area              5.36E0 &#xb5;Ci/cc   RX-9825   Radwaste Area             5.36E-2 &#xb5;Ci/cc RX-9820    Containment Purge         5.90E+2 &#xb5;Ci/cc   RX-9820    Containment Purge         5.90E+1 &#xb5;Ci/cc RX-9830    Fuel Handling Area         4.54E0 &#xb5;Ci/cc   RX-9830   Fuel Handling Area        4.54E-2 &#xb5;Ci/cc RX-9825    Radwaste Area             5.36E+2 &#xb5;Ci/cc   RX-9825    Radwaste Area             5.36E+1 &#xb5;Ci/cc RX-9835    Emerg. Penetration Room   9.56E+1 &#xb5;Ci/cc   RX-9835   Emerg. Penetration Room   9.56E-1 &#xb5;Ci/cc RX-9830    Fuel Handling Area        4.54E+2 &#xb5;Ci/cc   RX-9830    Fuel Handling Area        4.54E+1 &#xb5;Ci/cc RX-9835    Emerg. Penetration Room   9.56E+3 &#xb5;Ci/cc   RX-9835    Emerg. Penetration Room   9.56E+2 &#xb5;Ci/cc          MONITORS - Unit 2                 LIMIT               MONITORS - Unit 2               LIMIT MONITORS - Unit 2                LIMIT                 MONITORS - Unit 2               LIMIT       2RX-9820   Containment Purge          4.46E0 &#xb5;Ci/cc   2RX-9820  Containment Purge         4.46E-2 &#xb5;Ci/cc 2RX-9825   Radwaste Area              3.32E0 &#xb5;Ci/cc   2RX-9825  Radwaste Area             3.32E-2 &#xb5;Ci/cc 2RX-9820   Containment Purge         4.46E+2 &#xb5;Ci/cc   2RX-9820   Containment Purge         4.46E+1 &#xb5;Ci/cc 2RX-9830   Fuel Handling Area         4.46E0 &#xb5;Ci/cc   2RX-9830  Fuel Handling Area        4.46E-2 &#xb5;Ci/cc 2RX-9825   Radwaste Area             3.32E+2 &#xb5;Ci/cc   2RX-9825   Radwaste Area             3.32E+1 &#xb5;Ci/cc 2RX-9835   Emerg. Penetration Room   8.84E+1 &#xb5;Ci/cc   2RX-9835  Emerg. Penetration Room   8.84E-1 &#xb5;Ci/cc 2RX-9830   Fuel Handling Area        4.46E+2 &#xb5;Ci/cc   2RX-9830   Fuel Handling Area        4.46E+1 &#xb5;Ci/cc 2RX-9840   PASS Building             4.42E+1 &#xb5;Ci/cc   2RX-9840  PASS Building             4.42E-1 &#xb5;Ci/cc 2RX-9835   Emerg. Penetration Room   8.84E+3 &#xb5;Ci/cc   2RX-9835   Emerg. Penetration Room   8.84E+2 &#xb5;Ci/cc 2RX-9845   Aux. Building Extension   1.26E+1 &#xb5;Ci/cc   2RX-9845  Aux. Building Extension   1.26E-1 &#xb5;Ci/cc 2RX-9840   PASS Building             4.42E+3 &#xb5;Ci/cc   2RX-9840   PASS Building             4.42E+2 &#xb5;Ci/cc 2RX-9850   LLRW Storage Building     1.77E+1 &#xb5;Ci/cc   2RX-9850  LLRW Storage Building     1.77E-1 &#xb5;Ci/cc 2RX-9845   Aux. Building Extension   1.26E+3 &#xb5;Ci/cc   2RX-9845   Aux. Building Extension   1.26E+2 &#xb5;Ci/cc 2RX-9850   LLRW Storage Building     1.77E+3 &#xb5;Ci/cc   2RX-9850   LLRW Storage Building     1.77E+2 &#xb5;Ci/cc OR                                                   OR to 0CAN121102 Page 2 of 30 GENERAL EMERGENCY                   SITE AREA EMERGENCY                                  ALERT                               UNUSUAL EVENT ABNORMAL RADIOLOGICAL EFFLUENTS AG1 (continued)                      AS1 (continued)                      AA1 (continued)                                AU1 (continued)
OR                                   OR                                2. EITHER VALID reading on any                 2. VALID reading on any of the of the following radiation                    following radiation monitors
: 2. Dose assessment using actual      2. Dose assessment using actual monitors > 200 times the alarm                > 2 times the alarm setpoint meteorology indicates doses          meteorology indicates doses setpoint established by a current             established by a current release
   > 1000 mR TEDE or 5000 mR            > 100 mR TEDE or 500 mR child release permit for  15 minutes               permit for  60 minutes:
child thyroid CDE at or beyond       thyroid CDE at or beyond the OR VALID reading greater than the site boundary.                   site boundary.                                                                             MONITORS - Unit 1 the value listed for 15 minutes:
OR                                   OR                                                                                RX-9820    Cont. Purge (Ch. 7 or 9)
MONITORS - Unit 1               LIMIT RX-4830    Waste Gas Monitor
: 3. Field survey results indicate     3. Field survey results indicate      RX-9820   Cont. Purge (Ch. 7 or 9)     N/A RX-4642    Liquid Radwaste Monitor closed window dose rates             closed window dose rates           RX-4830   Waste Gas Monitor        9.5E7 cpm RX-9835    Emerg. Penetration Room
   > 1000 mR/hr expected to             > 100 mR/hr expected to            RX-4642   Liquid Radwaste Monitor  9.5E7 cpm continue for  60 minutes; or        continue for  60 minutes; or      RX-9835   Emerg. Penetration Room      N/A              MONITORS - Unit 2 analyses of field survey samples     analyses of field survey samples           MONITORS - Unit 2               LIMIT 2RX-9820   Cont. Purge (Ch. 7 or 9) 2RX-9820  Cont. Purge (Ch. 7 or 9)     N/A indicate child thyroid CDE           indicate child thyroid CDE                                                        2RX-2429   Waste Gas Monitor 2RX-2429  Waste Gas Monitor         9.5E5 cpm
   > 5000 mR for one hour of            > 500 mR for one hour of                                                          2RX-2330   BMS Discharge Monitor 2RX-2330  BMS Discharge Monitor     9.5E5 cpm inhalation, at or beyond the site    inhalation, at or beyond the site                                                 2RX-4423   LRW Discharge Monitor 2RX-4423  LRW Discharge Monitor     9.5E5 cpm boundary.                            boundary.
2RX-4425  SG BD to Flume Monitor    9.5E5 cpm  2RX-4425   SG BD to Flume Monitor OR                                             OR
: 3. Confirmed grab sample                       3. Confirmed grab sample analyses for gaseous or liquid                analyses for gaseous or liquid releases indicates                            releases indicates concentrations or release rates >             concentrations or release rates >
200 times the applicable values               2 times the applicable values of of the ODCM for  15 minutes.                 the ODCM for  60 minutes.
to 0CAN121102 Page 3 of 30 GENERAL EMERGENCY SITE AREA EMERGENCY                       ALERT                                      UNUSUAL EVENT ABNORMAL RADIATION LEVELS AA2                              1 2 3 4 5 6 D      AU2                            1 2 3 4 5 6 D Damage to irradiated fuel or loss of                Unexpected rise in plant radiation water level that has resulted or will               levels result in the uncovering of irradiated Emergency Action Level(s):
fuel outside the reactor vessel
: 1. a. UNPLANNED lowering of Emergency Action Level(s):
water level in the refueling
: 1. A water level drop in the                               canal or spent fuel pool as refueling canal or spent fuel pool                     indicated by:
that will result in irradiated fuel becoming uncovered.                                     Personnel observation, refueling crew report, OR                                                         indication on area security camera, borated water
: 2. VALID alarm on any of the source (BWST or RWT) following radiation monitors due level drop due to makeup to damage to irradiated fuel or demands.
loss of water level:
MONITORS - Unit 1 AND RX-9820        Containment Purge (Channel 7 or 9)     b. VALID Area Radiation RX-9825        Radwaste Area (Channel 7 or 9)             Monitor reading rise on any of RX-9830        Fuel Handling Area (Channel 7 or 9) the following:
RE-8060        Containment High Range Monitor RE-8061        Containment High Range Monitor                    MONITORS - Unit 1 RE-8009        Spent Fuel Area                      RE-8009      Spent Fuel Area RE-8017        Fuel Handling                        RE-8017      Fuel Handling Area MONITORS - Unit 2                                 MONITORS - Unit 2 2RX-9820       Containment Purge (Channel 7 or 9)   2RE-8914     Spent Fuel Area 2RX-9825       Radwaste Area (Channel 7 or 9)       2RE-8915     Spent Fuel Area 2RX-9830       Fuel Handling Area (Channel 7 or 9)  2RE-8916     Spent Fuel Area 2RE-8905       Containment Equipment Hatch Area     2RE-8912     Containment Incore Instrumentation 2RE-8909       Containment Personnel Hatch Area 2RE-8925-1/2   Containment High Range Monitors OR 2RE-8914/15/16 Spent Fuel Area Monitors 2RE-8912       Containment Incore Instruments to 0CAN121102 Page 4 of 30 GENERAL EMERGENCY SITE AREA EMERGENCY                    ALERT                             UNUSUAL EVENT ABNORMAL RADIATION LEVELS AA3                     1 2 3 4 5 6 D  AU2 (continued)
Rise in radiation levels within the     2. UNPLANNED VALID Area facility that impedes operation of          Radiation Monitor readings or systems required to maintain plant          survey results indicate a rise by safety functions.                           a factor of 1000 over normal*
levels.
Emergency Action Level(s):
NOTE:
: 1. Dose rate > 15 mR/hr in any of For area radiation monitors with ranges the following areas requiring       incapable of measuring 1000 times normal*
continuous occupancy to             levels, classification shall be based on maintain plant safety functions:    VALID full scale indication unless surveys confirm that area radiation levels are below Unit 1 Control Room               1000 times normal* within 15 minutes of the Area Radiation Monitor indications going to Unit 2 Control Room               full scale indication.
Central Alarm Station
* Normal can be considered as the highest reading in the past twenty-four hours excluding the current peak value.
to 0CAN121102 Page 5 of 30 GENERAL EMERGENCY                               SITE AREA EMERGENCY                                       ALERT                              UNUSUAL EVENT COLD SHUTDOWN / REFUELING SYSTEM MALFUNCTION - Loss of RCS / Reactor Vessel Inventory CG1                                      5 6    CS1                                     5 6 CA1                                     5 6 CU1                                      5 Loss of RCS / reactor vessel                    Loss of RCS / reactor vessel                Loss of RCS / reactor vessel                RCS leakage inventory affecting fuel clad integrity         inventory affecting core decay heat         inventory Emergency Action Level(s):
with containment challenged                     removal capability                          Emergency Action Level(s):
NOTE:
Emergency Action Level(s):                      Emergency Action Level(s):                  NOTE:
The SM should not wait until the applicable NOTE:                                           NOTE:                                       The SM / TSC Director / EOF Director should time has elapsed, but should declare the not wait until the applicable time has      event as soon as it is determined that the The SM / TSC Director / EOF Director should     The SM / TSC Director / EOF Director should elapsed, but should declare the event as    condition will likely exceed the applicable not wait until the applicable time has elapsed, not wait until the applicable time has      soon as it is determined that the condition time.
but should declare the event as soon as it is   elapsed, but should declare the event as    will likely exceed the applicable time.
determined that the condition will likely       soon as it is determined that the condition                                             1. RCS leakage results in the exceed the applicable time.                     will likely exceed the applicable time. 1. Loss of RCS / reactor vessel                 inability to maintain or restore
: 1. a. Core exit thermocouples                   1. With CONTAINMENT                              inventory as indicated by:                 level within Pressurizer or RCS indicate superheat for                       CLOSURE not established:                    Unit 1: RVLMS Levels 1                     level target band for
        > 30 minutes.                                                                                        through 8 indicate DRY          15 minutes.
Loss of RCS / reactor vessel AND                                          level as indicated by:                      Unit 2: RVLMS Levels 1 through 5 indicate DRY
: b. Any of the following                          Unit 1: RVLMS Levels 1 containment challenge                                    through 9 indicate DRY              OR indications:                                                                                                                    CU2                                         6 Unit 2: RVLMS Levels 1                      Unit 1: Reactor vessel level CONTAINMENT CLOSURE                                    through 6 indicate DRY                      < 368 ft., 0 in. (bottom UNPLANNED loss of RCS / reactor not established                                                                                    of the hot leg)
OR                                                                                 vessel Inventory Explosive mixture inside                                                               Unit 2: Reactor vessel level containment                           2. With CONTAINMENT                                          < 369 ft., 1.5 in. (bottom Emergency Action Level(s):
CLOSURE established, core exit                          of the hot leg)            NOTE:
UNPLANNED rise in                          thermocouples indicate containment pressure                       superheat.                                  OR                                     The SM should not wait until the applicable time has elapsed, but should declare the OR                                               OR                                                                                 event as soon as it is determined that the condition will likely exceed the applicable
: 2. a. RCS / reactor vessel level                                                                                                        time.
cannot be monitored with core uncovery indicated by                                                                                                      1. UNPLANNED RCS / reactor any of the following for                                                                                                            vessel level drop as indicated by 30 minutes:                                                                                                                       either of the following:
to 0CAN121102 Page 6 of 30 GENERAL EMERGENCY                  SITE AREA EMERGENCY                              ALERT                          UNUSUAL EVENT COLD SHUTDOWN / REFUELING SYSTEM MALFUNCTION - Loss of RCS / Reactor Vessel Inventory CG1 (continued)                     CS1 (continued)                       CA1 (continued)                      CU2 (continued)
Containment High Range     3. RCS / reactor vessel level
: 2. RCS / reactor vessel level cannot
: a. RCS / reactor vessel water Radiation Monitor reading     cannot be monitored for                                                       level drop below the reactor be monitored for  15 minutes
         >10 R/hr                       30 minutes with a loss of RCS                                               vessel flange for 15 minutes with a loss of RCS / reactor Erratic source range          / reactor vessel inventory as                                                 when the RCS / reactor vessel inventory as indicated by monitor indication            indicated by any of the following:                                            vessel level band is an unexplained level rise in the established above the reactor Unexplained level rise in      Containment High Range              Reactor Building Sump, Reactor vessel flange.
Reactor Building Sump,           Radiation Monitor reading          Drain Tank, Aux. Building Reactor Drain Tank,              > 10 R/hr                          Equipment Drain Tank, Aux.              OR Quench Tank, Aux. Building                                          Building Sump, or Quench Tank.
Erratic source range monitor                                             b. RCS / reactor vessel water Equipment Drain Tank, or         indication                                                                 level drop below the RCS /
Aux. Building Sump                                                                                          reactor vessel level band for Unexplained level rise in AND                                 Reactor Building Sump,                                                      15 minutes when the RCS /
Reactor Drain Tank, Quench                                                 reactor vessel level band is
: b. Any of the following                                                                                           established below the reactor Tank, Aux. Building Equipment containment challenge                                                                                          vessel flange.
Drain Tank, or Aux. Building indications:
Sump                                                                 2. RCS / reactor vessel level CONTAINMENT CLOSURE                                                                                      cannot be monitored with a loss not established                                                                                          of RCS / reactor vessel inventory Explosive mixture inside                                                                                 as indicated by an unexplained containment                                                                                              level rise in (as applicable) the Reactor Building Sump, Reactor UNPLANNED rise in Drain Tank, Aux. Building containment pressure Equipment Drain Tank, Aux.
Building Sump, or Quench Tank.
to 0CAN121102 Page 7 of 30 GENERAL EMERGENCY      SITE AREA EMERGENCY                              ALERT                                         UNUSUAL EVENT COLD SHUTDOWN / REFUELING SYSTEM MALFUNCTION - Loss of Decay Heat Removal CA3                                               5 6        CU3                                     5 6 Inability to maintain plant in Cold                          UNPLANNED loss of decay heat Shutdown                                                     removal capability with irradiated fuel in the reactor vessel Emergency Action Level(s):
Emergency Action Level(s):
: 1. An UNPLANNED event results in RCS temperature > 200 &deg;F >                         NOTE:
the specified duration in                             The SM should not wait until the applicable Table C1.                                             time has elapsed, but should declare the event as soon as it is determined that the Table C1                           condition will likely exceed the applicable RCS Reheat Duration Thresholds                time.
Containment RCS                              Duration Closure                      1. UNPLANNED event results in Intact (but not RCS N/A         60 minutes*        RCS temperature exceeding reduced inventory) 200 &deg;F.
Established     20 minutes*
Not intact or RCS reduced inventory           Not 0 minutes         OR Established
                                                     *If an RCS heat removal system is in operation within this 2. Loss of all RCS temperature and time frame and RCS temperature is being reduced, the EAL is not applicable.                                        RCS / reactor vessel level indication for  15 minutes.
OR NOTE: EAL #2 does not apply in solid plant conditions.
: 2. An UNPLANNED event results in RCS pressure rise > 10 psi due to a loss of RCS cooling.
to 0CAN121102 Page 8 of 30 GENERAL EMERGENCY      SITE AREA EMERGENCY                       ALERT                                UNUSUAL EVENT COLD SHUTDOWN / REFUELING SYSTEM MALFUNCTION - Loss of AC Power CA5                                     5 6 D CU5                                     5 6 Loss of all offsite and all onsite AC         AC power capability to Vital 4.16 KV power to Vital 4.16 KV busses                 busses reduced to a single power 15 minutes                                  source  15 minutes such that any additional single failure would result Emergency Action Level(s):
in station blackout NOTE:
Emergency Action Level(s):
The SM / TSC Director / EOF Director should not wait until the applicable time has        NOTE:
elapsed, but should declare the event as The SM should not wait until the applicable soon as it is determined that the condition time has elapsed, but should declare the will likely exceed the applicable time.
event as soon as it is determined that the
: 1. Loss of all offsite and all onsite         condition will likely exceed the applicable time.
AC power to Vital 4.16KV busses  15 minutes.                     1. a. AC power capability to Vital 4.16 KV busses reduced to a single power source 15 minutes.
AND
: b. Any additional single power source failure will result in station blackout.
to 0CAN121102 Page 9 of 30 GENERAL EMERGENCY      SITE AREA EMERGENCY             ALERT                         UNUSUAL EVENT COLD SHUTDOWN / REFUELING SYSTEM MALFUNCTION - Loss of DC Power CU6                                     5 6 Loss of required DC power 15 minutes Emergency Action Level(s):
NOTE:
The SM should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition will likely exceed the applicable time.
: 1. < 105 volts on required Vital DC bus  15 minutes.
GENERAL EMERGENCY      SITE AREA EMERGENCY             ALERT                         UNUSUAL EVENT COLD SHUTDOWN / REFUELING SYSTEM MALFUNCTION - Inadvertant Criticality CU7                                     5 6 Inadvertent criticality Emergency Action Level(s):
: 1. UNPLANNED sustained positive startup rate observed on nuclear instrumentation.
to 0CAN121102 Page 10 of 30 GENERAL EMERGENCY      SITE AREA EMERGENCY             ALERT                      UNUSUAL EVENT COLD SHUTDOWN / REFUELING SYSTEM MALFUNCTION - Loss of Communications CU8                                 5 6 D Loss of all onsite or offsite communications capabilities Emergency Action Level(s):
: 1. Loss of all Table C2 onsite communication methods affecting the ability to perform routine operations.
Table C2 Onsite Communications Equipment Station radio system Plant paging system In-plant telephones Gaitronics OR
: 2. Loss of all Table C3 offsite communication methods affecting the ability to perform offsite notifications.
Table C3 Offsite Communications Equipment All telephone lines (commercial and microwave)
ENS to 0CAN121102 Page 11 of 30 GENERAL EMERGENCY                         SITE AREA EMERGENCY                                   ALERT                             UNUSUAL EVENT ISFSI MALFUNCTION - Cask Damage E-HU1                   1 2 3 4 5 6 D Damage to a loaded cask CONFINEMENT BOUNDARY Emergency Action Level(s):
: 1. Damage to a loaded cask CONFINEMENT BOUNDARY.
GENERAL EMERGENCY                         SITE AREA EMERGENCY                                   ALERT                             UNUSUAL EVENT FISSION PRODUCT BARRIER MALFUNCTION - Barriers FG1                        1 2 3 4         FS1                     1 2 3 4          FA1                       1 2 3 4          FU1                     1 2 3 4 Loss of ANY two barriers AND loss          Loss or potential loss of ANY two        ANY loss or ANY potential loss of          ANY loss or ANY potential loss of or potential loss of third barrier         barriers                                 EITHER fuel clad or RCS                    containment Note: Determine which combination of the three barriers are lost or have a potential loss and use the above key to classify the event. Also, multiple events could occur which result in the conclusion that exceeding the loss or potential loss EALs is IMMINENT. In this IMMINENT loss situation use judgment and classify as if the EALs are exceeded.
to 0CAN121102 Page 12 of 30 Fuel Clad Barrier EALs                          RCS Barrier EALs                                   Containment Barrier EALs LOSS                 POTENTIAL LOSS            LOSS                POTENTIAL LOSS                      LOSS                   POTENTIAL LOSS
: 1. Primary Coolant Activity Level (FCB1)      1. RCS Leak Rate (RCB1)                                 1. Containment Pressure (CNB1)
: 1. Coolant activity          None             RCS leak rate > available    Unit 1: UNISOLABLE RCS     1. Rapid unexplained drop       1. Unit 1: Containment
   > 300 &#xb5;Ci/gm dose                          makeup capacity as                   leak > 50 gpm with    in containment pressure                    pressure equivalent I-131 activity                  indicated by:                        Letdown isolated      following an initial rise in               73.7 PSIA by Chemistry sample                                                                                   containment pressure                       (59 PSIG) and Unit 1: Loss of adequate     Unit 2: UNISOLABLE RCS                                                   rising OR                                                  subcooling margin           leak > 44 gpm with     OR Letdown isolated                                       Unit 2: Containment
: 2. Radiation levels                           Unit 2: RCS subcooling                                  2. Containment pressure or                    pressure
   > 1000 MR/hr                                        (MTS) can NOT be                                  sump level response not                    73.7 PSIA and maintained at least                               consistent with LOCA                       rising Unit 1: at SA-229                                    30 &deg;F                                             conditions Unit 2: at 2TCD-19                                                                                                                      OR
: 2. Explosive mixture exists inside Containment OR
: 3. a. Containment Pressure >
containment spray actuation setpoint Unit 1: 44.7 PSIA (30 PSIG)
Unit 2: 23.3 PSIA AND
: b. LESS THAN one full train of spray operating to 0CAN121102 Page 13 of 30 Fuel Clad Barrier EALs                                     RCS Barrier EALs                      Containment Barrier EALs LOSS              POTENTIAL LOSS                      LOSS                POTENTIAL LOSS           LOSS              POTENTIAL LOSS
: 2. Core Exit Thermocouple Readings (FCB2)            2. SG Tube Rupture (RCB2)                     2. Core Exit Thermocouple Readings (CNB2)
> 1200 &deg;F CET temperature Unit 1: ICC exists as      SGTR that results in an      None             None                      1. a. CETs indicate >
evidenced by CETs  ECCS (SI) actuation                                                           1200 &deg;F indicating superheated                                                                                      AND conditions                                                                                    b. Restoration Unit 2: Average CETs                                                                                     procedures not indicate superheat                                                                               effective within for current RCS                                                                                  15 minutes pressure                                                                                      OR
: 2. a. CETs indicate >
700 &deg;F AND
: b. RVLMS indicates Unit 1: Levels 1 through 9 DRY Unit 2: Levels 1 through 7 DRY AND
: c. Restoration procedures not effective within 15 minutes
: 3. SG Secondary Side Release With Primary-
: 3. Reactor Vessel Water Level (FCB3)                 3. Containment Radiation Monitoring (RCB3) to-Secondary Leakage (CNB3)
None                      Unit 1: RVLMS Levels 1     Containment high range       None             1. Primary-to-secondary   None through 9 indicate radiation monitor reading >                      leakrate > 10 gpm DRY                100 R/hr AND Unit 2: RVLMS Levels 1 through 7 indicate                                               2. UNISOLABLE steam DRY                                                                 release from affected steam generator to the environment to 0CAN121102 Page 14 of 30 Fuel Clad Barrier EALs                                             RCS Barrier EALs                                      Containment Barrier EALs LOSS                     POTENTIAL LOSS                         LOSS                     POTENTIAL LOSS                     LOSS                      POTENTIAL LOSS
: 4. Containment Isolation Failure or Bypass
: 4. Containment Radiation Monitoring (FCB4)                      4. Emergency Director Judgment (RCB4)
(CNB4)
Containment high range            None                          Any condition in the opinion of the SM / TSC Director / EOF 1. UNISOLABLE breach of            None radiation monitor reading >                                     Director that indicates Loss or Potential Loss of the RCS       containment 1000 R/hr                                                       barrier AND
: 2. Direct downstream pathway to the environment exists after containment isolation signal
: 5. Core Damage Assessment (FCB5)                                                                                            5. Containment Radiation Monitoring (CNB5)
At least 5% fuel clad damage      None                                                                                      None                               Containment high range as determined from core                                                                                                                                        radiation monitor reading >
damage assessment                                                                                                                                              4000 R/hr
: 6. Emergency Director Judgment (FCB6)                                                                                       6. Other Indications (CNB6)
Any condition in the opinion of the SM/TSC Director/EOF                                                                     Elevated readings on the following radiation monitors that Director that indicates Loss or Potential Loss of the fuel clad                                                             indicate loss or potential loss of the Containment barrier:
barrier MONITORS - Unit 1 RX-9820      Containment Purge RX-9825      Radwaste Area RX-9830      Fuel Handling Area RX-9835      Emergency Penetration Room MONITORS - Unit 2 2RX-9820     Containment Purge 2RX-9825     Radwaste Area 2RX-9830     Fuel Handling Area 2RX-9835     Emergency Penetration Room 2RX-9840     Post Accident Sampling Building 2RX-9845     Auxiliary Building Extension to 0CAN121102 Page 15 of 30 Fuel Clad Barrier EALs                                  RCS Barrier EALs                                       Containment Barrier EALs LOSS                   POTENTIAL LOSS                 LOSS               POTENTIAL LOSS                          LOSS                     POTENTIAL LOSS
: 7. Emergency Director Judgment (CNB7)
Any condition in the opinion of the SM / TSC Director / EOF Director that indicates Loss or Potential Loss of the containment barrier GENERAL EMERGENCY                       SITE AREA EMERGENCY                                   ALERT                                   UNUSUAL EVENT HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY - Security HG1                      1 2 3 4 5 6 D   HS1                      1 2 3 4 5 6 D HA1                         1 2 3 4 5 6 D        HU1                         1 2 3 4 5 6 D HOSTILE ACTION resulting in loss of      HOSTILE ACTION within the              HOSTILE ACTION within the OWNER                  Confirmed SECURITY CONDITION or physical control of the facility         PROTECTED AREA                         CONTROLLED AREA or airborne                      threat which indicates a potential attack threat                                    degradation in the level of safety of the Emergency Action Level(s):               Emergency Action Level(s):
plant Emergency Action Level(s):
: 1. A HOSTILE ACTION has occurred         1. A HOSTILE ACTION is occurring or Emergency Action Level(s):
such that plant personnel are            has occurred within the             1. A HOSTILE ACTION is occurring or unable to operate equipment              PROTECTED AREA as reported by           has occurred within the OWNER                1. A SECURITY CONDITION that required to maintain safety              ANO Security Shift Supervision.         CONTROLLED AREA as reported                      does not involve a HOSTILE functions.                                                                       by ANO Security Shift Supervision.               ACTION as reported by ANO Security Shift Supervision.
OR                                                                               OR OR
: 2. A HOSTILE ACTION has caused                                                  2. A validated notification from NRC of failure of Spent Fuel Cooling                                                    an airliner attack threat within             2. A credible site specific security Systems and IMMINENT fuel                                                        30 minutes of the site.                          threat notification.
damage is likely for a freshly off-OR loaded reactor core in pool.
: 3. A validated notification from NRC providing information of an aircraft threat.
to 0CAN121102 Page 16 of 30 GENERAL EMERGENCY                     SITE AREA EMERGENCY                                  ALERT                           UNUSUAL EVENT HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY - Discretionary HG2                      1 2 3 4 5 6 D HS2                        1 2 3 4 5 6 D HA2                      1 2 3 4 5 6 D HU2                      1 2 3 4 5 6 D Other conditions exist which in the    Other conditions exist which in the      Other conditions exist which in the    Other conditions exist which in the judgment of the SM / TSC Director /    judgment of the SM / TSC Director /      judgment of the SM / TSC Director /    judgment of the SM warrant EOF Director warrant declaration of    EOF Director warrant declaration of      EOF Director warrant declaration       declaration of an NUE General Emergency                      a Site Area Emergency                    of an Alert Emergency Action Level(s):
Emergency Action Level(s):             Emergency Action Level(s):               Emergency Action Level(s):
: 1. Other conditions exist which in
: 1. Other conditions exist which in     1. Other conditions exist which in       1. Other conditions exist which in        the judgment of the SM indicate the judgment of the SM / TSC           the judgment of the SM / TSC             the judgment of the SM / TSC           that events are in progress or Director / EOF Director indicate       Director / EOF Director indicate         Director / EOF Director indicate       have occurred which indicate a that events are in progress or         that events are in progress or           that events are in progress or         potential degradation of the level have occurred which involve            have occurred which involve              have occurred which involve an         of safety of the plant or indicate a actual or IMMINENT substantial         actual or likely major failures of       actual or potential substantial        security threat to facility core degradation or melting with       plant functions needed for               degradation of the level of safety     protection has been initiated. No potential for loss of containment      protection of the public or              of the plant or a security event       releases of radioactive material integrity or HOSTILE ACTION            HOSTILE ACTION that results in           that involves probable life            requiring offsite response or that results in an actual loss of      intentional damage or malicious          threatening risk to site personnel     monitoring are expected unless physical control of the facility.      acts; (1) toward site personnel or       or damage to site equipment            further degradation of safety Releases can be reasonably             equipment that could lead to the         because of HOSTILE ACTION.             systems occurs.
expected to exceed EPA                 likely failure of or; (2) that           Any releases are expected to be Protective Action Guideline            prevent effective access to              limited to small fractions of the exposure levels offsite for more       equipment needed for the                 EPA Protective Action Guideline than the immediate site area.          protection of the public. Any            exposure levels.
releases are not expected to result in exposure levels which exceed EPA Protective Action Guideline exposure levels beyond the site boundary.
to 0CAN121102 Page 17 of 30 GENERAL EMERGENCY           SITE AREA EMERGENCY                               ALERT                  UNUSUAL EVENT HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY - Control Room Evacuation HS3                       1 2 3 4 5 6 D HA3                     1 2 3 4 5 6 D Control Room evacuation has been        Control Room evacuation has been initiated and plant control cannot be   initiated established Emergency Action Level(s):
Emergency Action Level(s):
: 1. Alternate Shutdown procedure
: 1. a. Control Room evacuation has            requires Control Room been initiated.                      evacuation:
AND                                  Unit 1: 1203.002, Alternate Shutdown
: b. Control of the plant cannot be established in accordance            Unit 2: 2203.014, Alternate with the following procedures                 Shutdown within 15 minutes:
Unit 1: 1203.002, Alternate Shutdown Unit 2: 2203.014, Alternate Shutdown to 0CAN121102 Page 18 of 30 GENERAL EMERGENCY                             SITE AREA EMERGENCY                                 ALERT                              UNUSUAL EVENT HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY Fire Table H1 HA4                       1 2 3 4 5 6 D  HU4                          1 2 3 4 5 6 D Unit 1                                       Unit 2 CA-1 & HP Office Area                           2A3 Room                            FIRE or EXPLOSION affecting the          FIRE within the PROTECTED AREA Condensate Demineralizer Room                   2A4, 2D02, & East Battery Room      operability of plant safety systems      not extinguished within 15 minutes of Corridor 98                                     2B53 Room                           required to establish or maintain        detection or EXPLOSION within Fire Area C                                     2B63 Room                           safe shutdown                            the PROTECTED AREA Lower North Electrical Penetration Room         2B9/2B10 Room                       Emergency Action Level(s):               Emergency Action Level(s):
(LNEPR)                                         2Y11/13 Equipment Room Lower South Electrical Equipment Room           Auxiliary Building 317 General     1. FIRE or EXPLOSION resulting in        NOTE:
(LSEER) / Air Compressor Room                   Access                                 VISIBLE DAMAGE to any                 The SM should not wait until the applicable Lower South Electrical Penetration Room         Auxiliary Building 335'                Table H1 structure or area            time has elapsed, but should declare the (LSEPR)                                                                                containing safety systems or          event as soon as it is determined that the Auxiliary Building 354'                                                      condition has exceeded, or will likely exceed, Lower South Piping Penetration Room                                                    components or Control Room (LSPPR)                                         B Engineered Safeguards Features                                           the applicable time.
(ESF) Room                             indication of degraded Main Steam Isolation Violation (MSIV) Room                                                                                   1. FIRE in any Table H1 structure Corridor Behind Door 340               performance of those safety North Engineered Safeguards (ES) SWGR                                                                                            or area not extinguished Room (A4)                                       Turbine Building                       systems:
2A1, 2A2, 2H1, 2H2 Area                                                  1) within 15 minutes of Control South ES SWGR Room                                                                                                               Room notification or 2) within 354' West wall of Turbine Building                                        Demineralizer area                                                       15 minutes of verification of a A1, A2, H1, H2 SWGR area                        368' West Heater Deck north                                              Control Room FIRE alarm.
354' Bowling Alley north end west of             of north Switchgear (SWGR)
Breathing Air compressor room                    Room (2A3) and East of                                                   OR 368' West Heater Deck from LSEER                 LNEPR (orange door) along east wall of ES      Intake Structure 354' or 366'                                                2. EXPLOSION within the SWGR Rooms to Corridor 98 door LNEPR                                                                            PROTECTED AREA.
Upper North Electrical Penetration Room (UNEPR) / Hot Tool Room / Decon Room            LSEPR Upper South Electrical Penetration Room         Motor-Generator (MG) Set Room (USEPR)                                         Steam Pipe Area Upper South Piping Penetration Room             Hot Machine Shop (USPPR)                                         UNEPR, UNPPR, LNPPR, USPPR to 0CAN121102 Page 19 of 30 GENERAL EMERGENCY                             SITE AREA EMERGENCY                                     ALERT                                 UNUSUAL EVENT HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY Toxic Gas Table H1 HA5                             1 2 3 4 5 6 D    HU5                       1 2 3 4 5 6 D Unit 1                                       Unit 2 CA-1 & HP Office Area                           2A3 Room                            Access to a VITAL AREA is                        Release of toxic, corrosive, Condensate Demineralizer Room                   2A4, 2D02, & East Battery Room      prohibited due to toxic, corrosive,              asphyxiant, or flammable gases Corridor 98                                     2B53 Room                           asphyxiant, or flammable gases                   deemed detrimental to NORMAL Fire Area C                                     2B63 Room                           which jeopardize operation of                    PLANT OPERATIONS Lower North Electrical Penetration Room         2B9/2B10 Room                       operable equipment required to Emergency Action Level(s):
(LNEPR)                                         2Y11/13 Equipment Room              maintain safe operations or safely Lower South Electrical Equipment Room           Auxiliary Building 317 General shutdown the reactor                             1. Toxic, corrosive, asphyxiant, or (LSEER) / Air Compressor Room                   Access                                                                                  flammable gases in amounts that Emergency Action Level(s):
Lower South Electrical Penetration Room         Auxiliary Building 335'                                                                 have or could adversely affect (LSEPR)                                                                             NOTE:                                               NORMAL PLANT OPERATIONS.
Auxiliary Building 354' Lower South Piping Penetration Room B Engineered Safeguards Features  If the equipment in the stated area was (LSPPR) already inoperable, or out of service, before OR (ESF) Room Main Steam Isolation Violation (MSIV) Room                                          the event occurred, then this EAL should not Corridor Behind Door 340                                                             2. Report by Local, County or State North Engineered Safeguards (ES) SWGR                                               be declared as it will have no adverse impact Room (A4)                                       Turbine Building                    on the ability of the plant to safely operate or    officials for evacuation or sheltering 2A1, 2A2, 2H1, 2H2 Area     safely shutdown beyond that already allowed         of site personnel based on an South ES SWGR Room 354' West wall of           by Technical Specifications at the time of the      offsite event.
Turbine Building                                        Demineralizer area          event.
A1, A2, H1, H2 SWGR area                        368' West Heater Deck north 354' Bowling Alley north end west of             of north Switchgear (SWGR)  1. Access to a VITAL AREA is Breathing Air compressor room                    Room (2A3) and East of           prohibited due to toxic, 368' West Heater Deck from LSEER                 LNEPR                            corrosive, asphyxiant, or (orange door) along east wall of ES      Intake Structure 354' or 366' SWGR Rooms to Corridor 98 door                                                    flammable gases which Upper North Electrical Penetration Room LNEPR                                    jeopardize operation of systems (UNEPR) / Hot Tool Room / Decon Room            LSEPR                                    required to maintain safe Upper South Electrical Penetration Room         Motor-Generator (MG) Set Room            operations or safely shutdown (USEPR)                                         Steam Pipe Area                          the reactor.
Upper South Piping Penetration Room             Hot Machine Shop (USPPR)                                         UNEPR, UNPPR, LNPPR, USPPR to 0CAN121102 Page 20 of 30 GENERAL EMERGENCY                             SITE AREA EMERGENCY                                  ALERT                          UNUSUAL EVENT HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY Natural or Destructive Phenomena Table H1 HA6                      1 2 3 4 5 6 D  HU6                       1 2 3 4 5 6 D Unit 1                                       Unit 2 CA-1 & HP Office Area                           2A3 Room                            Natural or destructive phenomena        Natural or destructive phenomena Condensate Demineralizer Room                   2A4, 2D02, & East Battery Room      affecting VITAL AREAS                   affecting the PROTECTED AREA Corridor 98                                     2B53 Room Emergency Action Level(s):              Emergency Action Level(s):
Fire Area C                                     2B63 Room Lower North Electrical Penetration Room         2B9/2B10 Room                       1. a. Seismic event > Operating         1. Seismic event identified by any 2 (LNEPR)                                         2Y11/13 Equipment Room                     Basis Earthquake (OBE) as           of the following:
Lower South Electrical Equipment Room           Auxiliary Building 317 General            indicated by annunciation of the      Seismic event confirmed by (LSEER) / Air Compressor Room                   Access                                     0.1g acceleration alarm.                annunciation of the 0.01g Lower South Electrical Penetration Room         Auxiliary Building 335' (LSEPR)                                                                                    AND                                     acceleration alarm Auxiliary Building 354' Lower South Piping Penetration Room                                                    b. Earthquake confirmed by ANY            Earthquake felt in plant (LSPPR)                                         B Engineered Safeguards Features (ESF) Room                                 of the following:                     National Earthquake Center Main Steam Isolation Violation (MSIV) Room Corridor Behind Door 340                   Earthquake felt in plant North Engineered Safeguards (ES) SWGR                                                                                          OR Room (A4)                                       Turbine Building 2A1, 2A2, 2H1, 2H2 Area            National Earthquake Center      2. Tornado striking within South ES SWGR Room 354' West wall of                  Control Room indication of         PROTECTED AREA boundary Turbine Building                                        Demineralizer area A1, A2, H1, H2 SWGR area degraded performance of           or high winds > 67 mph.
368' West Heater Deck north 354' Bowling Alley north end west of             of north Switchgear (SWGR)           systems required for the OR Breathing Air compressor room                    Room (2A3) and East of               safe shutdown of the plant 368' West Heater Deck from LSEER                 LNEPR                                                               3. Internal flooding that has the (orange door) along east wall of ES                                             OR SWGR Rooms to Corridor 98 door Intake Structure 354' or 366'                                                  potential to affect safety related LNEPR                               2. Tornado striking or high winds          equipment required by Technical Upper North Electrical Penetration Room (UNEPR) / Hot Tool Room / Decon Room            LSEPR                                  > 67 mph resulting in VISIBLE           Specifications for the current Upper South Electrical Penetration Room         Motor-Generator (MG) Set Room          DAMAGE to any of the following          operating mode in any of the (USEPR)                                         Steam Pipe Area                        structures/equipment containing         structures or areas in Table H1.
Upper South Piping Penetration Room             Hot Machine Shop                       safety systems or components or OR (USPPR)                                         UNEPR, UNPPR, LNPPR, USPPR             Control Room indication of degraded performance of those        4. Turbine failure resulting in casing safety systems:                         penetration or damage to turbine or generator seals.
OR to 0CAN121102 Page 21 of 30 GENERAL EMERGENCY                   SITE AREA EMERGENCY                  ALERT                       UNUSUAL EVENT HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY Natural or Destructive Phenomena HA6 (continued)                      HU6 (continued)
Reactor Building              5. Lake Dardanelle level < 335 feet.
Intake Structure Ultimate Heat Sink               OR BWST/RWT                      6. Lake Dardanelle level > 345 feet.
Auxiliary Building Turbine Building QCST Control Room Startup Transformers Diesel Fuel Vault Table H2 OR Reactor Building        Turbine Building
: 3. Internal flooding in any of the Intake Structure             QCST               following areas resulting in an Ultimate Heat Sink         Control Room           electrical shock hazard that BWST/RWT            Startup Transformers      precludes access to operate or Auxiliary Building       Diesel Fuel Vault       monitor safety equipment or Control Room indication of degraded performance of those safety systems:
Intake Structure Ultimate Heat Sink BWST/RWT Auxiliary Building Turbine Building QCST Control Room Startup Transformers Diesel Fuel Vault to 0CAN121102 Page 22 of 30 GENERAL EMERGENCY                   SITE AREA EMERGENCY                 ALERT                        UNUSUAL EVENT HAZARDS AND OTHER CONDITIONS AFFECTING PLANT SAFETY Natural or Destructive Phenomena HA6 (continued)
OR
: 4. Turbine failure-generated PROJECTILES resulting in VISIBLE DAMAGE to or penetration of any of the structures/equipment in Table H2 containing safety systems or components or Table H2                        Control Room indication of Reactor Building        Turbine Building        degraded performance of those safety systems.
Intake Structure             QCST Ultimate Heat Sink         Control Room           OR BWST/RWT            Startup Transformers   5. Lake Dardanelle level < 335 feet Auxiliary Building       Diesel Fuel Vault       and Emergency Cooling Pond inoperable.
OR
: 6. Vehicle crash resulting in VISIBLE DAMAGE to any of the structures/equipment in Table H2 containing safety systems or components or Control Room indication of degraded performance of those safety systems.
to 0CAN121102 Page 23 of 30 GENERAL EMERGENCY                     SITE AREA EMERGENCY                                        ALERT                              UNUSUAL EVENT SYSTEM MALFUNCTION - Loss of AC Power SG1                      1 2 3 4      SS1                            1 2 3 4      SA1                            1 2 3 4      SU1                            1 2 3 4 Prolonged loss of all offsite and all Loss of all offsite and all onsite AC       AC power capability to Vital 4.16 KV        Loss of all offsite AC power to Vital onsite AC power to Vital 4.16 KV      power to Vital 4.16 KV busses               busses reduced to a single power            4.16 KV busses  15 minutes busses                                 15 minutes                                source  15 minutes such that any Emergency Action Level(s):
additional single failure would result Emergency Action Level(s):            Emergency Action Level(s):
in station blackout                         NOTE:
: 1. a. Loss of all offsite and all     NOTE:                                                                                   The SM / TSC Director / EOF Director should Emergency Action Level(s):
onsite AC power to Vital        The SM / TSC Director / EOF Director should                                             not wait until the applicable time has 4.16 KV busses.                 not wait until the applicable time has      NOTE:                                       elapsed, but should declare the event as elapsed, but should declare the event as                                                soon as it is determined that the condition The SM / TSC Director / EOF Director should has exceeded, or will likely exceed, the AND                             soon as it is determined that the condition not wait until the applicable time has has exceeded, or will likely exceed, the                                                applicable time.
: b. Either of the following:                                                    elapsed, but should declare the event as applicable time.
soon as it is determined that the condition 1. Loss of all offsite AC power to Restoration of at least one   1. Loss of all offsite and all onsite       has exceeded, or will likely exceed, the        Vital 4.16 KV busses Vital 4.16 KV bus in                                                      applicable time.
AC power to Vital 4.16 KV                                                                15 minutes.
        < 4 hours is not likely.          busses  15 minutes.                    1. a. AC power capability to Vital OR                                                                                4.16 KV busses reduced to a single power source Continuing degradation of                                                          15 minutes.
core cooling based on Fission Product Barrier                                                          AND monitoring as indicated by                                                    b. Any additional single power CETs  700 &deg;F.                                                                   source failure will result in station blackout.
to 0CAN121102 Page 24 of 30 GENERAL EMERGENCY                     SITE AREA EMERGENCY                             ALERT                  UNUSUAL EVENT SYSTEM MALFUNCTION - Failure of Reactor Protection System SG3                      1 2           SS3                      1 2         SA3                      1 2 Automatic trip and all manual          Automatic trip fails to shutdown the Automatic trip fails to shutdown the actions fail to shutdown the reactor   reactor and manual actions taken     reactor and the manual actions and indication of an extreme           from the reactor control console are taken from the reactor control challenge to the ability to cool the   not successful in shutting down the  console are successful in shutting core exists                            reactor                              down the reactor Emergency Action Level(s):             Emergency Action Level(s):           Emergency Action Level(s):
: 1. a. An automatic trip failed to      1. a. An automatic trip failed to    1. a. An automatic trip failed to shutdown the reactor.                  shutdown the reactor.                shutdown the reactor as indicated by reactor power AND                                    AND 5%.
: b. All manual actions do not           b. Manual actions taken at panel AND shutdown the reactor as                C03 (Unit 1) or panels indicated by reactor power             2C03/2C14 (Unit 2) do not         b. Manual actions taken at panel 5%.                                  shutdown the reactor as              C03 (Unit 1) or panels indicated by reactor power           2C03/2C14 (Unit 2)
AND 5%.                                successfully shutdown the
: c. Either of the following exist or                                            reactor as indicated by have occurred due to                                                        reactor power < 5%.
continued power generation:
CET temperatures at or approaching 1200 &deg;F.
OR Feedwater flow rate less than:
Unit 1: 430 gpm Unit 2: 485 gpm to 0CAN121102 Page 25 of 30 GENERAL EMERGENCY     SITE AREA EMERGENCY                     ALERT    UNUSUAL EVENT SYSTEM MALFUNCTION - Loss of DC Power SS4                            1 2 3 4 Loss of all Vital DC power 15 minutes Emergency Action Level(s):
NOTE:
The SM / TSC Director / EOF Director should not wait until the applicable time has elapsed, but should declare the event as soon as it is determined that the condition has exceeded, or will likely exceed, the applicable time.
: 1. < 105 volts on all Vital DC busses 15 minutes.
to 0CAN121102 Page 26 of 30 GENERAL EMERGENCY     SITE AREA EMERGENCY                                        ALERT                                  UNUSUAL EVENT SYSTEM MALFUNCTION - Loss of Annunciators SS6                            1 2 3 4      SA6                            1 2 3 4          SU6                            1 2 3 4 Inability to monitor a SIGNIFICANT          UNPLANNED loss of safety system                 UNPLANNED loss of safety system TRANSIENT in progress                       annunciation or indication in the               annunciation or indication in the Control Room with either (1) a                  Control Room for  15 minutes Emergency Action Level(s):
SIGNIFICANT TRANSIENT in Emergency Action Level(s):
NOTE:                                       progress, or (2) compensatory The SM / TSC Director / EOF Director should indicators unavailable                          NOTE:
not wait until the applicable time has                                                      The SM / TSC Director / EOF Director should elapsed, but should declare the event as    Emergency Action Level(s):
not wait until the applicable time has soon as it is determined that the condition NOTE:                                           elapsed, but should declare the event as has exceeded, or will likely exceed, the                                                    soon as it is determined that the condition applicable time.                            The SM / TSC Director / EOF Director should     has exceeded, or will likely exceed, the not wait until the applicable time has elapsed, applicable time.
: 1. a. UNPLANNED loss of >                   but should declare the event as soon as it is approximately 75% of the            determined that the condition has exceeded,     1. UNPLANNED loss of >
following  15 minutes:             or will likely exceed, the applicable time.         approximately 75% of the Control Room annunciators          1. a. UNPLANNED loss of >                           following  15 minutes:
associated with safety                      approximately 75% of the                  a. Control Room annunciators systems.                                    following  15 minutes:                       associated with safety OR                                          Control Room annunciators                    systems.
associated with safety Control Room safety                                                                        OR systems.
system indication.                                                                    b. Control Room safety system OR AND                                                                                          indication.
Control Room safety
: b. A SIGNIFICANT TRANSIENT                          system indication.
in progress.
AND AND
: b. Either of the following:
: c. Compensatory indications are unavailable.                                   A SIGNIFICANT TRANSIENT is in progress OR Compensatory indications are unavailable to 0CAN121102 Page 27 of 30 GENERAL EMERGENCY SITE AREA EMERGENCY              ALERT         UNUSUAL EVENT SYSTEM MALFUNCTION - RCS Leakage SU7                    1 2 3 4 RCS leakage Emergency Action Level(s):
: 1. Unidentified or pressure boundary leakage > 10 gpm.
OR
: 2. Identified leakage > 25 gpm.
to 0CAN121102 Page 28 of 30 GENERAL EMERGENCY SITE AREA EMERGENCY                ALERT                 UNUSUAL EVENT SYSTEM MALFUNCTION - Loss of Communications SU8                           1 2 3 4 Loss of all onsite or offsite communications capabilities Emergency Action Level(s):
: 1. Loss of all Table M1 onsite communications methods affecting the ability to perform routine operations.
Table M1 Onsite Communications Methods Station radio system Plant paging system In-plant telephones Gaitronics OR
: 2. Loss of all Table M2 offsite communications methods affecting the ability to perform offsite notifications.
Table M2 Offsite Communications Methods All telephone lines (commercial and microwave)
ENS to 0CAN121102 Page 29 of 30 GENERAL EMERGENCY SITE AREA EMERGENCY                ALERT               UNUSUAL EVENT SYSTEM MALFUNCTION - Fuel Clad Degradation SU9                     1 2 3 4 Fuel clad degradation Emergency Action Level(s):
: 1. Failed Fuel Iodine radiation monitor reading indicates fuel clad degradation > Technical Specification allowable limits:
Unit 1: RI-1237S reads
                                                                                  > 1.3 x 105 cpm Unit 2: 2RITS-4806B reads
                                                                                  > .65 x 105 cpm OR
: 2. RCS sample activity value indicating fuel clad degradation
                                                                        > Technical Specification allowable limits:
                                                                          > 1.0 uCi/gm Dose Equivalent I-131 for more than 48 hours OR Unit 1:  60 uCi/gm Dose Equivalent I-131 Unit 2: > 60 uCi/gm Dose Equivalent I-131 OR to 0CAN121102 Page 30 of 30 GENERAL EMERGENCY SITE AREA EMERGENCY                 ALERT                 UNUSUAL EVENT SYSTEM MALFUNCTION - Fuel Clad Degradation SU9 (continued)
Unit 1: > 2200 &#xb5;Ci/gm Dose Equivalent Xe-133 for more than 48 hours Unit 2: > 3100 &#xb5;Ci/gm Dose Equivalent Xe-133 for more than 48 hours SYSTEM MALFUNCTION - Inadvertant Criticality SU10                         3 4 Inadvertent criticality Emergency Action Level(s):
: 1. An UNPLANNED sustained positive startup rate observed on nuclear instrumentation.
SYSTEM MALFUNCTION - Failure to Shutdown SU11                     1 2 3 4 Inability to reach required operating mode within Technical Specification limits Emergency Action Level(s):
: 1. A Plant is not brought to required operating mode within Technical Specifications LCO action statement time.

Attachment 5 to 0CAN121102 Supporting Referenced Document Pages to 0CAN121102 Page 1 of 21 Arkansas Nuclear One (ANO) Units 1 and 2 NEI 99-01 Revision 5 EAL Supporting Document Table ANO lC/EAL               Subject             Supporting Document      Page Number(s)
FCBI, FCB5,     Fuel cladding radiation   Calculation 03-E-0002-01   22, 27, 38, 42, RCB4, CNB6      monitoring system/survey                             54, 46, 49, 60 readings FCB4            Reactor vessel levels     Calculation 90-E-01 16-01  238 Calculation 84-EQ-0080-02  16 ULD-1-SYS-24               11 ULD-2-SYS-24               9 RCB2            Subcooling margin         Calculation 90-E-0116-07   74, 75 Calculation 90-E-0116-01   196, 197 SGI             Loss of offsite power     Calculation 85-E-0072-02   1 Calculation 85-E-0072-01   1 to 0CAN121102 Page 2 of 21 Attachment 1, Calculation No. 90-E-0116-01, Page 238 OP Setpoint No.: R.3          Revision: 10 Parameter: RVLMS Setpoint Value: RVLMS LVL 06 or higher elevation indicates WET Applicability:
Associated System/Component: RVLMS

==
Description:==

RVLMS level which indicates the core is covered with coolant. This value is used to verify RCS inventory control.
Key Assumptions:
Basis:
The lowest reactor vessel level sensor is #7, and is 47 inches above the top of the core (ref. 1).
Sensor #7 corresponds to RVLMS LVL 06 on the ICC monitoring panel 2C388 (ref. 2).
The only instrument uncertainty associated with the RVLMS is the response time of the level probes and the discrete layout of the sensors (ref. 1). Since this value is used during relatively steady state conditions no uncertainty was incorporated
- Note, this is not an instrument alarm or actuation setpoint but a value to be used by the operator in the control room to determine required actions within the EOPs or adequacy of equipment operation.

==References:==
: 1)   Calculation No. 84-EQ-0080-01, Rev. 2, Determination of Reactor Vessel Level Measurement Uncertainties.
: 2)   TM T068.0040, Technical Manual For Reactor Vessel Monitoring System ANO Unit 2, Rev.
2, 1/2/91.
to 0CAN121102 Page 3 of 21 84-EQ-0080-02 PAGE 16 of 93 REV 2 DRAINDOWN 1                 2                3              4                 5            6             7             8         9 SENSOR #      SENSOR LOC REF.                     DRN RATE @        COLL LVL @    MAN. ERR. MAN. DEL.      TC ERR TC OUT DELAY REGION AND TYPE          RVL (FEET)                        SNS FT/S         SNS SEC.       FT.          SEC.           DEGF      SEC.
2 SLOW              36.50            DOME           0.105            342.86        0.33          3.14           10      101.79 3 SLOW              34.88            DOME           0.105            358.28        0.33          3.14           10      101.79 4 SLOW              33.13            DOME           0.105            374.89        0.33          3.14           10      101.79 5 SLOW              31.38            DOME           0.105            391.50        0.33          3.14           10      101.79 6 SLOW              29.63           PLENUM          0.105            408.11        0.42          4.01           10      101.79 7 SLOW              27.88           PLENUM          0.025            428.52        0.42         16.84           10      101.79 8 SLOW              26.13           PLENUM          0.025            498.36        0.42         16.84           10      101.79 9 SLOW              24.29           PLENUM          0.025            571.51        0.42         16.84           10      101.79 10 SLOW             22.46           PLENUM          0.025            644.71        0.42         16.84           10      101.79 10          11              12            13               14           15            16                 17            18 DAS ERR      DAS ERR       DAS UNCOV      LVL AT DAS       DAS UNC      SPDS DEL. SPDS UNCOV        LVL @ SPDS UNC   SPDS UNC.
DEGF       DEL SEC.       TIME SEC.       UNC FT.      UNCERT FT.        SEC.       TIME SEC.             FT.        UNCERT FT.
8.96        43.93          491.72         26.30           -10.20         30          521.72             25.55         -10.95 8.96        43.93          507.14         25.91            -8.97         30          537.14             25.16          -9.72 8.96        43.93          523.75         25.49            -7.63         30          553.75             24.74          -8.38 8.96        43.93          540.36         25.08            -6.30         30          570.36             24.33          -7.05 8.96        43.93          557.83         24.64            -4.98         30          587.83             23.89          -5.73     2 8.96        43.93          591.08         23.81            -4.06         30          621.08             23.06          -4.81 8.96        43.93          660.92         22.07            -4.06         30          690.92             21.32          -4.81 8.96        43.93          734.07         20.24            -4.06         30          764.07             19.49          -4.81 8.96        43.93          807.27         18.41            -4.05         30          837.27             17.66          -4.80 to 0CAN121102 Page 4 of 21 ARKANSAS NUCLEAR ONE                                   NO.:          ULD-1-SYS-24 UPPER LEVEL DOCUMENT                                   REV. NO.: 4 ANO-1 INADEQUATE CORE COOLING SYSTEM                               PAGE:         11 The ATC sensor in the RLI just under the reactor head provides a unique benefit. The sensor monitors temperature at the metal-to-liquid interface of the reactor head, which is influenced by the sensible heat stored in the reactor head. Use of this reactor vessel head fluid temperature measurement by operators helps to prevent inadvertent steam bubble formation during natural circulation cooldown and during RCS depressurization. (REF. 21, 24, 63)
B. The RGT sensors installed in the reactor vessel dome and upper plenum regions will give an early warning of the approach to inadequate core cooling. The sensors are axially located to provide optimum resolution in the areas of most concern. (REF. 21, 25, 26)
The collapsed liquid level indication provided by the RGT sensors of the RVLMS portion of ICCMDS furnishes the operators with reactor coolant inventory trend information during the approach to an ICC event and the recovery from an ICC event. The level information allows the operators to determine if reactor vessel inventory is increasing or decreasing. (REF. 21, 27)
Reactor Coolant Pumps (RCP) status is used to validate hot leg water level and reactor vessel level, in that with any of the four RCPs running, flow induced turbulence produced by the pumps results in inaccurate sensed level. Therefore, when any of the RCPs are running the hot leg water level displays and the reactor vessel level sensors in the plenum are invalid. Inventory measurements in the upper head region are not seriously affected by the operation of the RCPs and so will be available to give advanced warning of an approach to ICC. (REF. 19, 27, 28, 29, 73) This operation is confirmed by surveillance testing utilizing simulated RCP field inputs. (REF. 49)
C. The RLls presently installed in ANO-1 extend from the top of the reactor vessel to the fuel alignment plate. The above-core level indication provided by the RLIs is used to monitor the approach to and recovery from ICC conditions. The CET portion of ICCMDS is utilized to identify core uncovery (fuel rod cladding temperature) when reactor coolant level drops below the top of the core. (REF. 8, 19, 27, 30)
D. The 24 radially distributed CETs (six per each core quadrant) provide indication of the temperature rise across representative regions of the core. These CETs are part of and are located in the upper portion of the incore neutron detector assembly. (REF. 7, 17, 18) Note, temporary CETs, with associated raceways, are installed in the reactor building. These temporary CET5 are used to monitor core conditions via ICCMDS during refueling conditions. (REF. 77)
GL 88-17 requirements are met as follows:
A. Two independent indications of average CET temperature information is readily available for display at any time via the LMD and is logged every hour during cold shutdown. CET temperature information is also continuously available on the Mimic Display Monitor. Additionally, contingency steps exist for monitoring CET temperatures should LMD indications become unavailable. (REF. 59, 60, 62, 63) to 0CAN121102 Page 5 of 21 ARKANSAS NUCLEAR ONE                                   NO.:           ULD-2-SYS-24 UPPER LEVEL DOCUMENT                                   REV. NO.: 2 ANO-2 INADEQUATE CORE COOLING SYSTEM                               PAGE:          9 The ATC sensor in the RLI just under the reactor head provides a unique benefit. The sensor monitors temperature at the metal-to-liquid interface of the reactor head, which is influenced by the sensible heat stored in the reactor head. This temperature measurement provides valuable information concerning the influence of this sensible heat on coolant conditions at the metal-to-liquid interface. Use of these temperature measurements by operators helps to prevent inadvertent steam bubble formation during natural circulation cooldown and during repressurization after a small break LOCA. (REF. 1, 25)
B. The RGT sensors installed in the reactor vessel head will give an early warning of the approach to inadequate core cooling. The sensors are axially located to provide optimum resolution in the areas of most concern. (REF. 1, 6, 24)
The collapsed liquid level indication provided by the RGT sensors of the RVLMS furnishes the operators with reactor coolant inventory trend information during the approach to an ICC event and the recovery from an ICC event. The level information allows the operators to determine if reactor vessel inventory is increasing or decreasing. (REF. 1, 6, 20)
Process inputs to DAS consists of slow and fast RGT sensors. These inputs are differential temperature signals which correspond to the temperature difference across the argon gas annulus in a slow sensor or the difference in surface and interior temperatures in the fast sensor. The slow and fast sensors are used to determine WET, DRY and QUENCH states for output to the level display. These signals also generate a display alarm on a DRY state for either sensor type.
(REF. 1, 6, 20)
When the Reactor Coolant Pumps (RCPs) are running, all except the upper head region (dome) sensors are interlocked (REF. 16, 26) to read INVALID due to flow induced turbulence that may offset the sensor outputs (REF. 1, 20, 24). Inventory measurements in the upper head region are not seriously affected by the operation of the RCPs and so will be available to give advanced warning of an approach to ICC.
C. The RLls presently installed in ANO-2 extend from the top of the reactor vessel to the bottom of the core. However, for ICC monitoring, only the portions of the RLls above the core (from the top of the reactor vessel to the absolute thermocouples located at the core exit) are considered part of the ICC Monitoring System. The above-core portions of the RLls are used to monitor the approach to and recovery from ICC conditions. The CETs are utilized to estimate core uncovery (fuel rod cladding temperature) when reactor coolant level drops below the top of the core. The in-core portions of the RLls are used for core heat-transfer trending, DT measurement across the core, and local power monitoring. (REF. 1, 6, 20, 21)
D. The 42 radially distributed CETs provide indication of the temperature rise across representative regions of the core. These CETs are part of and are located in the upper portion of the in-core neutron detectors. (REF. 1, 17, 27)
The ATC sensors of the RVLMS can satisfy one of the requirements for continuous temperature indication of core exit conditions whenever the RCS is in a reduced inventory condition and the head is on (REF. 48, 49).
to 0CAN121102 Page 6 of 21 CALCULATION 03-E-0002-01 Rev. 0                                                   Page 22 of 63 A plot of the response is shown below.
Figure 1: Unit 1 RB @ 300 &#xb5;Ci/gm DEQ I-131 & 5% Clad Failure 1.0E+04 5% CF R/hr   1.0E+03 300 &#xb5;Ci/gm 1.0E+02 0                  4                     8                      12 hrs For simplicity of presentation to the Shift Manager acting as the Site Emergency Coordinator, a high range radiation monitor reading of at least 1000 rem/hr between 15 minutes and 2 hours following reactor shutdown would adequately represent 2-5% cladding failure. The two hour point is chosen because it allows ample time for the transfer of Site Emergency Coordinator duties to outside the control room. According to reference 23, during the initial fifteen minutes after a thermal event inside containment, the high range radiation monitor readings are considered invalid due to possibility of a transient thermally induced current.
This value is therefore recommended as the EAL setpoint for containment high range radiation monitors indicating a loss of the fuel cladding barrier.

Attachment 5 to 0CAN121102 Page 7 of 21 CALCULATION 03-E-0002-01 Rev. 0                                                Page 27 of 63 A plot of the response is shown below.
Figure 2: Unit 2 RB @ 300 &#xb5;Ci/gm DEQ I-131 & 5% Clad Failure 1.0E+04 5% CF R/hr   1.0E+03 300 &#xb5;Ci/gm 1.0E+02 0                  4                    8                     12 hrs For simplicity of presentation to the Shift Manager acting as the Site Emergency Coordinator, a high range radiation monitor reading of at least 1000 rem/hr between 15 minutes and 2 hours after reactor shutdown would adequately represent 2-5% cladding failure. The two hour point is chosen because it allows ample time for the transfer of Site Emergency Coordinator duties to outside the control room. According to reference 23, during the initial fifteen minutes after a thermal event inside containment, the high range radiation monitor readings are considered invalid due to possibility of a transient thermally induced current.
This value is therefore recommended as the EAL setpoint for containment high range radiation monitors indicating a loss of the fuel cladding barrier.
to 0CAN121102 Page 8 of 21 CALCULATION 03-E-0002-01 Rev. 0                                                Page 38 of 63 A plot of the response is shown below.
Figure 5: Unit 1 RB After RCS Blowdown at 60 &#xb5;Ci/gm 1.0E+03 R/hr   1.0E+02 Average R/hr 1.0E+01 0              4                      8                      12 hrs A high range radiation monitor reading of  100 R/hr between 15 minutes and 2 hours following reactor shutdown would adequately represent the release of reactor coolant of 60 &#xb5;Ci/gm DEQ I-131 due to iodine spiking into the containment. This reading is an order of magnitude lower than that specified for the Fuel Clad Barrier EAL. This corresponds to the intent of NEI 99-01 PWR RCS Barrier EAL #4.
to 0CAN121102 Page 9 of 21 CALCULATION 03-E-0002-01 Rev. 0                                                 Page 42 of 63 Figure 6: Unit 2 RB After RCS Blowdown at 60 &#xb5;Ci/gm 1.0E+03 1.0E+02 R/hr                                                                                  60 &#xb5;Ci/gm 1.0E+01 1.0E+00 0               4                      8                       12 hrs A high range radiation monitor reading of 100 R/hr between 15 minutes and 2 hours following reactor shutdown would adequately represent the release of reactor coolant of 60 &#xb5;Ci/gm DEQ I-131 due to iodine spiking into the containment. This reading is an order of magnitude lower than that specified for the Fuel Clad Barrier EAL. This corresponds to the intent of NEI 99-01 PWR RCS Barrier EAL #4.
The two hour point is chosen because it allows ample time for the transfer of Site Emergency Coordinator duties to outside the control room. According to reference 23, during the initial fifteen minutes after a thermal event inside containment, the high range radiation monitor readings are considered invalid due to possibility of a transient thermally induced current.
to 0CAN121102 Page 10 of 21 CALCULATION 03-E-0002-01 Rev. 0                                                  Page 46 of 63 Figure 7: Unit 1 RB After RCS Blowdown @ 20% Clad Failure 1.0E+04 R/hr                                                                                   Average 1.0E+03 0                   4                   8                       12 hrs For simplicity of presentation to the Shift Manager acting as the Site Emergency Coordinator, a high range radiation monitor reading of at least 4000 rem/hr between 15 minutes and 2 hours after reactor shutdown would adequately represent 20% cladding failure. The two hour point is chosen because it allows ample time for the transfer of Site Emergency Coordinator duties to outside the control room. According to reference 23, during the initial fifteen minutes after a thermal event inside containment, the high range radiation monitor readings are considered invalid due to possibility of a transient thermally induced current. While the above plot shows the radiation levels dropping below 4000 R/hr at about 1.5 hours, this setpoint is judged to be adequate, for the purpose of the EAL, which is to indicate significant fuel damage well in excess of the EAL associated with loss of Fuel Clad, and as a decision point for declaration of a General Emergency. The situation will likely be diagnosed from radiation levels in less than 1.5 hours.
to 0CAN121102 Page 11 of 21 CALCULATION 03-E-0002-01 Rev. 0                                                 Page 49 of 63 Figure 8: Unit 2 RB After RCS Blowdown @ 20% Clad Failure 1.0E+04 R/hr                                                                                  Average 1.0E+03 0                   4                   8                       12 hrs For simplicity of presentation to the Shift Manager acting as the Site Emergency Coordinator, a high range radiation monitor reading of at least 4000 rem/hr between 15 minutes and 2 hours after reactor shutdown would adequately represent 20% cladding failure. This EAL setpoint is used to indicate significant fuel damage well in excess of the EAL associated with loss of Fuel Clad, and as a decision point for declaration of a General Emergency.
The two hour point is chosen because it allows ample time for the transfer of Site Emergency Coordinator duties to outside the control room. According to reference 23, during the initial fifteen minutes after a thermal event inside containment, the high range radiation monitor readings are considered invalid due to possibility of a transient thermally induced current.

Attachment 5 to 0CAN121102 Page 12 of 21 CALCULATION 03-E-0002-01 Rev. 0                                                 Page 54 of 63 Figure 9: SA-229 Dose Rate at 300 &#xb5;Ci/gm and 5% Clad Failure in Unit 1 RCS 1.0E+04 mR/hr SA229 at 300 &#xb5;Ci/gm 1.0E+03 SA229 at 5% CF 1.0E+02 0                      4                     8                    12 hrs For simplicity of presentation to the Shift Manager acting as the Site Emergency Coordinator, a reading of at least 1000 mRem/hr within 2 hours after reactor shutdown measured at 1 foot from SA-229, six inches from the end of the piping, would adequately represent 2-5% cladding failure. The two hour point is chosen because it allows ample time for the transfer of Site Emergency Coordinator duties to outside the control room. This value is therefore recommended as the EAL setpoint indicating a loss of the fuel cladding barrier.
to 0CAN121102 Page 13 of 21 CALCULATION 03-E-0002-01 Rev. 0                                                Page 54 of 63 Figure 11:
2TCD-19 Dose Rate at 300 &#xb5;Ci/gm DEQ I-131 and 5% Clad Failure in Unit 2 RCS 1.0E+04 mR/hr 1.0E+03 1.0E+02 0             4                             8                12 hrs 2TCD-19 at 300 &#xb5;Ci/gm 2TCD-19 at 5% CF For simplicity of presentation to the Shift Manager acting as the Site Emergency Coordinator, a reading of > 1000 mR/hr within 2 hours after reactor shutdown measured at 1 foot from the midpoint of 2TCD-19 would adequately represent 2-5% cladding failure. The two hour point is chosen because it allows ample time for the transfer of Site Emergency Coordinator duties to outside the control room. This value is therefore recommended as the EAL setpoint indicating a loss of the fuel cladding barrier.
to 0CAN121102 Page 14 of 21 CALCULATION 90-E-0116-07 Rev. 4, Attachment 1                                     Page 74 of 238 OP Setpoint No.: B.19          Revision: 3 Parameter: MINIMUM SUBCOOLING MARGIN Setpoint Value: EOP Figure 1 Applicability:
Associated System/Component: RCS

==
Description:==

Minimum Subcooling Margin according to RCS pressure.
Key Assumptions: NONE Basis:
The basis for this curve (Figure 1, curve 1) in the EOP is the instrument error for accident conditions associated with CET temperature indications. During natural circulation, CET subcooling margin is utilized, while the T-hot indications are utilized when RCPs are running.
CET subcooling margin errors were utilized, because they are slightly more conservative than those incorporating T-hot. These errors were extracted from Reference 1, pages 32-36 for pressures < 500 psig and Reference 3 for pressures > 500 psig. The data points for the curve in Figure 1 are given below by the Bounding Error Column:
RCS Pressure      RCS Temperature (&deg;F)         RCS Temperature (&deg;F)
(psig)            Bounding Error                  Actual Error 2500                    639                        653652 2000                    607                        620619 1500                    567                        578577 1000                 516 (496)                       522 500                    420                        433432 400                    398                          408 350                 386 (366)                       392 300                    352                          375 200                    318                          328 150                   296*                          296 100                   268*                          251 50                   228*                          178
* 70 &deg;F subcooling margin is incorporated below 150 psig, since the actual error is too prohibitive. See below for further explanation.
to 0CAN121102 Page 15 of 21 At 1000 psig and 350 psig the instrument error applied to the saturation curve changes to a higher value (indicated by number in parentheses). The bounding error to 1000 psig is 30 &deg;F, 50&deg;F to 350 psig, and 70 &deg;F to just below 150 psig. The calculated accident condition error becomes too prohibitive to include below 150 psig, therefore 70 &deg;F will be assumed below this pressure until boiling is no longer a possibility below 200 &deg;F (since the maximum instrument error associated with the CETs is less than 10 &deg;F from Ref 3 and the boiling point at atmospheric pressure is 212 &deg;F). At 150 psig the combined accident error in the positive direction applied to the minimum subcooling margin curve and the accident error in the negative direction applied to the maximum 200 &deg;F subcooling margin PTS curve would allow for little to no maneuverability. Also, below 150 psig, DHR will most likely have been initiated and temperature indications from the DHR loop along with an alarm for DH pump suction temperature greater than 280 &deg;F will be available providing corroboration (Reference 2).
Note: Since this curve incorporates accident error, it is very conservative for non-accident conditions. However, it will be used for both abnormal and accident conditions in the interest of simplicity.

==References:==
: 1)   Engineering Report 91-R-1011-01, Rev. 1112, Instrumentation Error Evaluation for ANO-1 EOP Setpoint Verification Project per IRF No. 6051, 6078 and 6095.
: 2)   Drawing M-418, sheet 2, Rev. 16, Functional Description And Logic Diagram - Decay Heat Removal System.
: 3)   Engineering calculation 88-EQ-0006-01, Rev. 1, including DRN 05-29916-2677, ICC Tsat Loop Accuracy.
to 0CAN121102 Page 16 of 21 , CALCULATION 90-E-0116-01, Page 196 OP Setpoint No.: M.1           Revision: 11 Parameter: RCS SUBCOOLED MARGIN Setpoint Value: 30 &deg;F Applicability:
Associated System/Component: RCS/SMM

==
Description:==

Margin to saturation, taken from 2XI-4612-3,-4, 2XR-4612, or SPDS with or without forced coolant flow, with the saturation margin monitor in Tsat mode, which indicates that the RCS is subcooled.
Key Assumptions:
Basis:
This value is based on providing assurance of adequate RCS subcooling with consideration given to the instrument inaccuracy of the above instruments. The worst case uncertainties, with a harsh containment environment, of the instruments mentioned above occur on 2XR-4612 and are tabulated below (ref. 1 and 2):
Inaccuracy (&deg;F)           Pressure (psia) 13.50                    2500 17.41                    1500 21.74                    1000 26.90                     700 29.62                     600 31.28                     550 33.28                     500 38.52                     400 46.90                     300 The historical value used for this setpoint is 30 &deg;F. The instrument inaccuracy exceeds this value at just below 600 psia. Therefore the value of 30 &deg;F bounds the uncertainty over most of the range except below approximately 600 psia. This is acceptable as most operator actions based on this setpoint occur at higher RCS pressures and utilize criteria in addition to margin to saturation. For instance, HPSI termination and RCP restart criteria include, among other things, margin to saturation greater than 30 &deg;F. Below 1000 psia or so the RCP NPSH limits for one RCP or two RCPs in opposite loops in operation are more restrictive anyway. The Safety to 0CAN121102 Page 17 of 21 Function Status Check (SFSC) uses this value to verify RCS inventory control. It is not the only parameter monitored to check inventory control as pressurizer level and reactor vessel level are also monitored. The reactor vessel level monitoring system should provide sufficient corroborative measures to counteract the higher uncertainties in margin to saturation at lower pressures.
In FRP, IC-2 there is a step which directs the operator to reduce RCS pressure to less than 600 psia to attempt to discharge the SITs if MTS is less than 30 &deg;F. However, whenever the pressure is below 600 psia the 30 &deg;F may not be bounding depending on the actual accident conditions. Other corroborative measures are present which will support the use of this setpoint value. This step will also restore the MTS. In blackout there is a step which directs the operator to reduce RCS temperature if MTS is less than 30 &deg;F (due to RCS pressure decay). Again, this action is taken at higher RCS pressures, hence the 30 &deg;F setpoint should still be bounding.
Note: SPDS instrument uncertainty for subcooled margin based on CETs or Thot is bounded by the uncertainty discussed above (ref. 1).

==References:==
: 1)   Calculation No. 85-EQ-0004-21, Rev. 7(1), Loop Error Analysis for Subcooling Margin Monitor.
: 2)   ER980574 I204 Rev. 0 EOP to 0CAN121102 Page 18 of 21 CALCULATION COVER SHEET                 FORM 203F2 Rev. 7/15/85 Page 1 of 1 Proj. No. - Calc. No.: 85-E-00072-02                     Plant/Unit: ANO-1               Q Non-Q Seis. I Calc.

==Title:==
Time from Loss of All AC Power to Loss of Subcooling                        Seis. II Non-Seis Proj.

==Title:==
Fire Other Calc. Type (Chk. & Provide Information)                Calc. Status (Chk. & Provide Info.)
ANO Piping       T W S O HGR                           New Calc.
Line Class:                                            Supercedes Calc # __________
ANO General - Log Sect: Nuclear Engineering            Amends Calc # __________
Foss. Piping      T W S O HGR                          Voids Calc # __________
Foss. General - Log Sect:
Verification Method:           Design Review          Alternate Calcs.          Qual. Testing

==Purpose:==
To determine how long following loss of all AC till charging of the RCS must be accomplished to avoid losing subcooling.
Results: In the above described scenario, subcooling will not be lost if charging of the RCS is accomplished within 41/2 hours.
Revision No.                               0 Pgs. Revd or added By/Init./date      (signature on file)
Orig.
Displn.        Chk/Init./date Rvw/Init./date     (signature on file)
Apv/Init./date     (signature on file)
Pgs. affected By/Init./date Supp.
Chk/Init./date Displn.
Rvw/Init./date Apv/Init./date to 0CAN121102 Page 19 of 21 CALCULATION COVER SHEET                 FORM 203F2 Rev. 7/15/85 Page 1 of 1 Proj. No. - Calc. No.: 85-E-00072-01                     Plant/Unit: ANO-2               Q Non-Q Seis. I Calc.

==Title:==
Time from Loss of All AC Power to Loss of Subcooling                        Seis. II Non-Seis Proj.

==Title:==
Fire Other Calc. Type (Chk. & Provide Information)                Calc. Status (Chk. & Provide Info.)
ANO Piping       T W S O HGR                           New Calc.
Line Class:                                            Supercedes Calc # __________
ANO General - Log Sect: Nuclear Engineering            Amends Calc # __________
Foss. Piping      T W S O HGR                          Voids Calc # __________
Foss. General - Log Sect:
Verification Method:           Design Review          Alternate Calcs.          Qual. Testing

==Purpose:==
To determine how long following loss of all AC till charging of the RCS must be accomplished to avoid losing subcooling.
Results: In the above described scenario, subcooling will not be lost if charging of the RCS is accomplished within 61/2 hours and appropriate operator actions are taken.
Revision No.                               0 Pgs. Revd or added By/Init./date      (signature on file)
Orig.
Displn.        Chk/Init./date Rvw/Init./date     (signature on file)
Apv/Init./date     (signature on file)
Pgs. affected By/Init./date Supp.
Chk/Init./date Displn.
Rvw/Init./date Apv/Init./date to 0CAN121102 Page 20 of 21 CROSS REFERENCE MATRIX FROM NEI EAL NUMBER TO ENTERGY EAL NUMBER ANO IC           NEI 99-01 IC  Diff. Doc. Page Clean Basis Page No AU1                AU1               5               10 AU2                AU2               8               13 AA1                AA1              11               15 AA2                AA2              14               18 AA3                AA3              16               20 AS1                AS1              18               21 AG1                AG1              21               23 CU1                CU1              23               26 CU2                CU2              24               27 CU3                CU4              26               29 CU5                CU3              27               30 CU6                CU7              28               31 CU7                CU8              29               32 CU8                CU6              30               33 CA1                CA1              32               34 CA3                CA4              35               36 CA5                CA3              36               38 CS1                CS1              38               39 CG1                CG1              41               41 E-HU1              E-HU1             43               44 FU1                FU1              44               N/A FA1                FA1              45               N/A FS1                FS1              46               N/A FG1                FG1              47               N/A Fuel Clad EALs      Fuel Clad EALs        49               47 RCS EALs           RCS EALs            53               53 Containment EALs   Containment EALs        58               57 HU1                HU4              62               66 HU2                HU5              63               68 HU4                HU4              65               69 to 0CAN121102 Page 21 of 21 CROSS REFERENCE MATRIX FROM NEI EAL NUMBER TO ENTERGY EAL NUMBER ANO IC          NEI 99-01 IC  Diff. Doc. Page Clean Basis Page No HU5                HU3              67                71 HU6                HU1              68                72 HA1                HA4               71               76 HA2                HA6               72               78 HA3                HA5               73               79 HA4                HA2               75               80 HA5                HA3               77               82 HA6                HA1               79               83 HS1                HS4               82               87 HS2                HS3               83               88 HS3                HS2               84               89 HG1                HG1               85               90 HG2                HG2               86               91 SU1                SU1               87               93 SU6                SU3               89               94 SU7                SU5               90               96 SU8                SU6               91               97 SU9                SU4               93               98 SU10               SU8               95              100 SU11               SU2               96              101 SA1                SA5              98               102 SA3                SA2              99               103 SA6                SA4              101              104 SS1                SS1              102              106 SS3                SS2              103              107 SS4                SS3              104              108 SS6                SS6              106              109 SG1                SG1              108              111 SG3                SG2              110              113}}