ML110050402
ML110050402 | |
Person / Time | |
---|---|
Site: | Salem, Hope Creek ![]() |
Issue date: | 10/14/2010 |
From: | Public Service Enterprise Group |
To: | Office of Nuclear Reactor Regulation |
References | |
LR-N10-0355 EP-HC-111-200 | |
Download: ML110050402 (396) | |
Text
Attachment 2 HCGS EAL Technical Bases Document (Clean Version)
HCGS ECG -EAL Technical Bases EP-HC-1 11-200 Nu~ceclr LLC Hope Creek Generating Station Event Classification Guide (ECG)Emergency Action Level Technical Bases NRC Submittal Draft "E" HCGS ECG -EAL Technical Bases EP-HC-1 11-200 HOPE CREEK EVENT CLASSIFICATION GUIDE (ECG)EMERGENCY ACTION LEVEL (EAL) TECHNICAL BASES TABLE OF CONTENTS ECG -EAL Bases Front-Matter Materials:
EP-HC-111-200 HCGS ECG -EAL Technical Bases Table of Contents EP-HC-1 11-201 Emergency Action Level (EAL) Technical Basis Introduction EP-HC-111-202 ECG Usage ECG EAL Sections -Bases Information:
EP-HC-111-203 EAL Bases for Category R1 -Offsite Rad Conditions EP-HC-111-204 EAL Bases for Category R2 -Onsite Rad Conditions
/ Fuel Pool Events EP-HC-111-205 EAL Bases for Category R3 -Control Room Rad EP-HC-111-206 EAL Bases for Category E -ISFSI EP-HC-111-207 EAL Bases for Category H1 -Hazards -Natural & Destructive Phenomena (Quake, High Winds / Tornado, Turbine Rotating Component Failure, Internal Flooding, River Level, Vehicle Crash / Projectile Impact)EP-HC-111-208 EAL Bases for Category H2 -Hazards -Fire or Explosion EP-HC-1 11-209 EAL Bases for Category H3 -Hazards -Hazardous Gas EP-HC-1 11-210 EAL Bases for Category H4 -Hazards -Security EP-HC-1 11-211 EAL Bases for Category H5 -Hazards -Control Room Evacuation EP-HC-1 11-212 EAL Bases for Category H6 -Hazards -EC Judgment EP-HC-1 11-213 EAL Bases for Category S1 -System Malfunction
-Loss of AC Power Hope Creek Page 1 of 3 Rev. 0 (Draft E)
HCGS ECG -EAL Technical Bases EP-HC-1 11-200 HOPE CREEK EVENT CLASSIFICATION GUIDE (ECG)EMERGENCY ACTION LEVEL (EAL) TECHNICAL BASES TABLE OF CONTENTS EP-HC-1 11-214 EAL Bases for Category S2 -System Malfunction
-Loss of DC Power EP-HC-1 11-215 EAL Bases for Category S3 -System Malfunction
-ATWS/Criticality EP-HC-1 11-216 EAL Bases for Category S4 -System Malfunction
-Inability to Reach or Maintain Shutdown Conditions EP-HC-111-217 EAL Bases for Category S5 -System Malfunction
-Loss of Annunciators!
Instrumentation EP-HC-1 11-218 EAL Bases for Category 56 -System Malfunction
-Communication EP-HC-1 11-219 EAL Bases for Category S7 -System Malfunction
-Fuel Clad Degradation EP-HC-111-220 EAL Bases for Category S8 -System Malfunction
-RCS Leakage EP-HC-1 11-221 EAL Bases for Category F1 -Fission Product Barriers -Fuel EP-HC-1 11-222 EAL Bases for Category F2 -Fission Product Barriers -RCS EP-HC-1 11-223 EAL Bases for Category F3 -Fission Product Barriers -Containment EP-HC-1 11-224 EAL Bases for Category C1 -Cold Shutdown / Refuel System Malfunction
-Loss of AC Power EP-HC-111-225 EAL Bases for Category C2 -Cold Shutdown / Refuel System Malfunction
-Loss of DC Power EP-HC-1 11-226 EAL Bases for Category C3 -Cold Shutdown / Refuel System Malfunction
-RPV Level EP-HC-1 11-227 EAL Bases for Category C4 -Cold Shutdown / Refuel System Malfunction
-RCS Temperature Hope Creek Page 2 of 3 Rev. 0 (Draft E)
HCGS ECG -EAL Technical Bases EP-HC-111-200 HOPE CREEK EVENT CLASSIFICATION GUIDE (ECG)EMERGENCY ACTION LEVEL (EAL) TECHNICAL BASES TABLE OF CONTENTS IC-1 11-228 EAL Bases for Category C5 -Cold Shutdown / Refuel System Malfunction
-Communication C-i11-229 EAL Bases for Category C6 -Cold Shutdown / Refuel System Malfunction
-Inadvertent Criticality EP--EP-I-ECG -EAL Technical Bases Supporting Documents:
EP-HC-1 11-230 -Use of Fission Product Barrier Table (Tab -Attachment 1)EP-HC-1 11-231 -EAL Bases Figures / Drawings (Tab -Attachment 2)EP-HC-1 11-232 -EAL Definitions (Tab -Attachment 3)EP-HC-1 11-233 -Glossary of Abbreviations
& Acronyms (Tab -Attachment 4)EP-HC-1 11-234 -HCGS-to-NEI 99-01 EAL Cross-reference (Tab -Attachment 5)EP-HC-1 11-235 -Hope Creek EAL Rad Set-Point Calculation Document (Tab -Attachment 6)Hope Creek Page 3 of 3 Rev. 0 (Draft E)
HCGS ECG -EAL Technical Bases EP-HC-1 11-201 PSEG Nucleons".LL C Hope Creek Generating Station Event Classification Guide (ECG)Emergency Action Level Technical Bases Draft E 7/30/10 HCGS ECG -EAL Technical Bases EP-HC-1 11-201 Table of Contents Section Paqe 1. Purpose .....................................................................................................
2 2. Em ergency Classification Descriptions
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2 3. Fission Product Barriers ................................................................................
4 4. EAL Relationship to EO Ps ............................................................................
5 5. Sym ptom -Based vs. Event-Based Approach ................................................
5 6. EAL O rganization
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6 7. O perational Condition Applicability
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7 8. EAL Technical Bases O rganization
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8 9. References
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11 Hope Creek Page 1 of 11 Rev. 0 (draft E)Introduction HCGS ECG -EAL Technical Bases EP-HC-1 11-201 1. PURPOSE This document provides an explanation and rationale for each Hope Creek Generating Station (HCGS) Emergency Action Level (EAL). It should be used to facilitate review of the HCGS EALs, provide historical documentation for future reference and serve as a training aid. Decision-makers responsible for implementation of the Event Classification Guide (ECG)may use this document as a technical reference in support of EAL interpretation.
This information may assist the Emergency Coordinator in making classifications, particularly those involving judgment or multiple events. The information may also be useful in training, for explaining event classifications to offsite officials, and facilitate regulatory review and approval of the classification scheme.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. Use of this document for assistance is not intended to delay the emergency classification.
This document is controlled pursuant to 10 CFR 50.54(q).2. Emergency Classification Descriptions The NRC and Federal Emergency Management Agency (FEMA) established four emergency classes for fixed nuclear facilities.
An emergency class is used for grouping off-normal nuclear power plant conditions according to their relative radiological seriousness and the time sensitive onsite and offsite actions needed to respond to such conditions.
The four emergency classes are (in order of less severe to most severe):* Unusual Event (UE)* Alert (A)* Site Area Emergency (SAE)" General Emergency (GE)Hope Creek Page 2 of 11 Rev. 0 (draft E)Introduction HCGS ECG -EAL Technical Bases EP-HC-1 11-201 2.1 Unusual Event Events are in progress or have occurred which indicate a potential degradation of the level of safety of the plant or indicates a security threat to facility protection has been initiated." The lowest level of emergency at the plant, which can usually be handled by the normal operating shift.* No releases of radioactive material requiring offsite response or monitoring are expected unless further degradation of safety systems occurs. Dose consequences in Unrestricted Areas would not reach 20 mRem TEDE.2.2 Alert 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." Emergency Response personnel are required in addition to the normal operating shift.The entire emergency response organization is called in. The TSC is activated, and the EOF and ENC are manned and may activate if needed for support.* Any release of radioactive material is expected to be limited to a small fraction of the EPA Protective Action Guideline exposure levels. Dose consequences in Unrestricted Areas would not reach 100 mRem TEDE.2.3 Site Area Emergency Events are in progress or have occurred which involve an actual or likely failure of plant functions needed for protection of the public or HOSTILE ACTION that result 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.* The entire emergency response organization is activated." Any release of radioactive material is not expected to exceed EPA Protective Action Guideline exposure levels beyond the plant boundary.
Dose consequences in Unrestricted Areas not to exceed 1000 mRem TEDE.Hope Creek Page 3 of 11 Rev. 0 (draft E)Introduction HCGS ECG -EAL Technical Bases EP-HC-1 11-201 2.4 General Emergency Events are in process or have occurred which involve actual or IMMINENT substantial core degradation or melting with potential for loss of containment integrity or HOSTILE ACTIONS that result in an actual loss of physical control of the facility.* The entire emergency response organization is activated.
- Release of radioactive material can be expected to exceed EPA Protective Action Guideline exposure levels of 1000 mRem TEDE in Unrestricted Areas.3. Fission Product Barriers Many of the EALs derived from the NEI 99-01 methodology are fission product barrier based.That is, the conditions that define the EALs pertain to the loss or potential loss of one or more of the three fission product barriers. "Loss" and "Potential Loss" signify the relative damage and threat of damage to the barrier. "Loss" means the barrier no longer assures containment of radioactive materials; "Potential Loss" infers an increased probability of barrier loss and decreased certainty of maintaining the barrier.3.1 Barrier Descriptions The EAL fission product barriers are: Fuel Clad Barrier (FB): The Fuel Clad barrier consists of the zirconium tubes which house the ceramic uranium oxide pellets along with the end plugs which are welded into each end of the fuel rods comprise the Fuel Clad barrier.Reactor Coolant System Barrier (RB): The Reactor Coolant System barrier includes the reactor vessel shell, vessel head, CRD housings, vessel nozzles and penetrations, and all primary systems directly connected to the RPV up to the outermost primary containment isolation valves.Containment (CB): The Containment barrier includes the drywell, the torus, their respective interconnecting paths, and other connections up to and including the outermost containment isolation valves.3.2 Emergency Classification Based on Fission Product Barrier Degradation The following criteria for event classification relate to fission product barrier loss or potential loss: UNUSUAL EVENT ANY loss or ANY potential loss of Containment Hope Creek Page 4 of 11 Rev. 0 (draft E)Introduction HCGS ECG -EAL Technical Bases EP-HC-1 11-201 ALERT ANY loss or ANY potential loss of either Fuel Clad or RCS SITE AREA EMERGENCY Loss or potential loss of ANY two barriers OR Potential loss of 2 barriers with the loss of the 3 rd barrier GENERAL EMERGENCY Loss of ANY two barriers and loss or potential loss of third barrier Discrete threshold values associated with fission product barrier loss and potential loss are given in Attachment 1, Use of Fission Product Barrier Table. The bases for the thresholds are discussed in the following ECG sections:* EP-HC-1 11-221 EAL Bases for Fuel Clad Barrier* EP-HC-1 11-222 EAL Bases for RCS Barrier* EP-HC-1 11-223 EAL Bases for Containment Barrier A point system (described in Attachment
- 1) is used to determine fission product barrier emergency classification levels as well as Protective Action Recommendations (PARs) if a General Emergency is declared.4. EAL Relationship to EOPs Where possible, the EALs have been made consistent with and utilize the conditions defined in the HCGS Emergency Operating Procedures (EOPs). While the symptoms that drive operator actions specified in the EOPs are not indicative of all possible conditions which warrant emergency classification, they define the symptoms, independent of initiating events, for which reactor plant safety and/or fission product barrier integrity are threatened.
When these symptoms are clearly representative of one of the NEI Initiating Conditions, they have been utilized as an EAL. This permits rapid classification of emergency situations based on plant conditions without the need for additional evaluation or event diagnosis.
Although some of the EALs presented here are based on conditions defined in the EOPs, classification of emergencies using these EALs is not dependent upon EOP entry or execution.
The EALs can be utilized independently or in conjunction with the EOPs.5. Symptom-Based vs. Event-Based Approach To the extent possible, the EALs are symptom-based; that is, the action level threshold is defined by values of key plant operating parameters that identify emergency or potential emergency conditions.
This approach is appropriate because it allows the full scope of Hope Creek Page 5 of 11 Rev. 0 (draft E)Introduction HCGS ECG -EAL Technical Bases EP-HC-1 11 -201 variations in the types of events to be classified as emergencies.
However, a purely symptom-based approach is not sufficient to address all events for which emergency classification is appropriate.
Particular events to which no predetermined symptoms can be ascribed have also been utilized as EALs since they may be indicative of potentially more serious conditions not yet fully realized.6. EAL Organization 6.1 EAL Groups The EAL scheme is divided into three broad groups:* EALs applicable under all plant Operational Conditions (OPCONs) -This group would be reviewed by the EAL-user any time emergency classification is considered." EALs applicable only under hot OPCONs -This group would only be reviewed by the EAL-user when the plant is in Hot Shutdown, Startup or Power Operations OPCONs.* EALs applicable only under cold OPCONs -This group would only be reviewed by the EAL-user when the plant is in Cold Shutdown or Refueling OPCONs or when the RPV is defueled.The purpose of the groups is to avoid review of hot condition EALs when the plant is in a cold condition and avoid review of cold condition EALs when the plant is in a hot condition.
This approach significantly minimizes the total number of EALs that must be reviewed by the EAL-user for a given plant condition, reduces EAL-user reading burden and, thereby, speeds identification of the EAL that applies to the emergency.
6.2 EAL Categories and Subcategories Within each EAL group, EALs are assigned to categories/subcategories.
Category titles generally align with the EAL Recognition Categories of NEI 99-01.Subcategory titles are selected to represent conditions that are operationally significant to the EAL-user.
Subcategories are used as necessary to further divide the EALs of a category into logical sets of possible emergency classification thresholds.
Hope Creek Page 6 of 11 Rev. 0 (draft E)Introduction HCGS ECG -EAL Technical Bases EP-HC-1 11-201 The HCGS EAL categories/subcategories and their relationship to NEI Recognition Categories are listed below.HCGS EALs Category Subcategory Group: Any Operating Mode: R -Abnormal Rad Release / Rad Effluent 1 -Offsite Rad Conditions 2 -Onsite Rad Conditions/Fuel Pool Events 3 -CR/CAS Rad E -ISFSl Spent Fuel Transit & Storage H -Hazards & Other Conditions Affecting 1 -Natural & Destructive Phenomena Plant Safety 2 -Fire or Explosion 3 -Hazardous Gas 4 -Security 5 -Control Room Evacuation 6 -EC Judgment Group: Hot Conditions:
S -System Malfunction 1 -Loss of AC Power 2 -Loss of DC Power 3 -ATWS / Criticality 4 -Inability to Reach or Maintain Shutdown Conditions 5 -Instrumentation 6 -Communications 7 -Fuel Clad Degradation 8 -RCS Leakage F -Fission Product Barrier Degradation None Group: Cold Conditions:
C -Cold Shutdown / Refuel System 1 -Loss of AC Power Malfunction 2 -Loss of DC Power 3 -RPV Level 4 -RCS Temperature 5 -Communications 6 -Inadvertent Criticality
- 7. Operational Condition Applicability With the exception of ISFSI (which is not assigned an OPCON), NEI 99-01 assigns one or more operational conditions to each EAL. The ISFSI EAL will be applicable in all OPCONs at Hope Creek Generating Station; as such, OPCON applicability is N/A for the ISFSI EAL.7.1 OPCON Definitions 1 Power Operations Reactor mode switch is in RUN 2 Startup Hope Creek Page 7 of 11 Rev. 0 (draft E)Introduction HCGS ECG -EAL Technical Bases EP-HC-1 11-201 The mode switch is in STARTUP/HOT STANDBY 3 Hot Shutdown The mode switch is in SHUTDOWN and reactor coolant temperature is > 200OF 4 Cold Shutdown The mode switch is in SHUTDOWN and reactor coolant temperature is < 200OF 5 Refueling The mode switch is in REFUEL or SHUTDOWN and reactor coolant temperature is < 140OF with fuel in the vessel and vessel head closure bolts less than fully tensioned or head removed 7.2 Added NEI 99-01 condition D Defueled All reactor fuel removed from RPV. (Full core off load during refueling or extended outage).(Although Defueled is not a Technical Specification defined OPCON, it corresponds to the Refueling OPCON when all reactor fuel is removed from the RPV.)7.3 Applicability The plant operational condition that exists at the time that the event occurs (prior to any protective system or operator action is initiated in response to the condition) should be compared to the operational condition applicability of the EALs. If a lower or higher plant operational condition is reached before the emergency classification is made, the declaration shall be based on the operational condition that existed at the time the event occurred.For events that occur in Cold Shutdown or Refueling, escalation is via EALs that have Cold Shutdown or Refueling for OPCON applicability, even if Hot Shutdown (or a higher OPCON) is entered during any subsequent heat-up. In particular, the fission product barrier EALs are applicable only to events that initiate in Hot Shutdown or higher.8. EAL Technical Bases Organization EAL technical bases are provided for each EAL according to:* EAL category (R, E, H, S, F and C)* EAL subcategory Hope Creek Page 8 of 11 Rev. 0 (draft E)Introduction HCGS ECG -EAL Technical Bases EP-HC-1 11 -201 Figures cited in EAL basis discussions are provided in Attachment
- 2. EAL defined terms and abbreviations and acronyms are listed in Attachments 3 and 4, respectively.
For each EAL, the following information is provided:* EAL Category Letter & Title* EAL Subcategory Number & Title" Initiating Condition Site-specific description of the generic IC given in NEI 99-01.* OPCON Applicability One or more of the following OPCONs comprise the conditions to which each EAL is applicable:
1 -Power Operations, 2 -Startup, 3 -Hot Shutdown, 4 -Cold Shutdown, 5 -Refueling, D -Defueled, N/A -Not Applicable or All.For Fission Product Barrier Table bases, OPCON Applicability is always OPCON 1, 2 and 3. For these EALs, the barrier threat (Loss or Potential Loss) is listed.* EAL# and Classification Level (EAL# & Point Value for Fission Product Barrier Table EAL bases): The EAL number is a unique identifier to support accurate communication of the emergency classification to onsite and offsite personnel.
Four characters define each EAL identifier:
Category R, E, H, S and C EALs: (Example:
SU7.1)1. First character (letter) -Corresponds to the EAL category (R, E, H, S or C)2. Second character (letter) -Emergency classification level: U for Unusual Event, A for Alert, S for Site Area Emergency, or G for General Emergency 3. Third character (number):
Subcategory number within the given category.Subcategories are sequentially numbered beginning with the number one (1).If a category does not have a subcategory, this character is assigned the number one (1).4. Fourth character (number):
The numerical sequence of the EAL within the EAL subcategory.
If the subcategory has only one EAL, it is given the number one (1).Hope Creek Page 9 of 11 Rev. 0 (draft E)Introduction HCGS ECG -EAL Technical Bases EP-HC-1 11 -201 Selected EALs in Category H have been designated as "Common Site" events.These events are annotated with the phrase "(Common Site)" immediately following the classification level.Category F Fission Product Barrier EALs: (Example CB4-P)1. First and second characters (letters) identify the barrier to which the EAL applies.FB: Fuel Clad Barrier RB: Reactor Coolant Barrier CB: Containment Barrier 2. Third character (number) -Sequential number beginning with the number one (1) for the first threshold in the barrier loss or potential loss of the Fission Product Barrier Table (Attachment 1)3. Last character (letter) preceded by a dash (-) designates if EAL is for a potential loss or loss of the barrier in question.P: Potential Loss L: Loss" EAL (enclosed in rectangle)
Exact wording of the EAL as it appears in the EAL wallcharts." Basis The basis discussion applicable to the EAL taken from NEI 99-01.* Explanation/Discussion/Definitions Description of the site-specific rationale for the EAL." EAL Basis Reference(s)
'l t Source documentation from which the EAL is derived. The first reference in each list gives the NEI 99-01 IC and example EAL number. A cross-reference of HCGS EALs and NEI 99-01 ICs/EALs is given in Attachment 5.Hope Creek Page 10 of 11 Rev. 0 (draft E)Introduction HCGS ECG -EAL Technical Bases EP-HC-1 11-201 9. REFERENCES 9.1 NEI 99-01 Revision 5, Methodology for Development of Emergency Action Levels, Final, February 2008 (ADAMS Accession Number of ML080450149) 9.2 NRC Regulatory Issue Summary (RIS) 2003-18, Supplement 2, Use of Nuclear Energy Institute (NEI) 99-01, Methodology for Development of Emergency Action Levels Revision 4, Dated January 2003 (December 12, 2005) (ADAMS Accession Number of ML051450482) 9.3 NRC Regulatory Issue Summary (RIS) 2007-02 Clarification of NRC Guidance for Emergency Notifications During Quickly Changing Events, Dated February 2007 (ADAMS Accession Number of ML06237031 1)9.4 Hope Creek EAL Comparison Matrix -NRC submittal document that defines differences between NEI 99-01, Rev. 05 and PSEG submitted HC EALs Hope Creek Page 11 of 11 Rev. 0 (draft E)Introduction HCGS ECG -EAL Technical Bases EP-HC-11 11-202 EVENT CLASSIFICATION GUIDE (ECG) USE NOTE It is expected the Shift Manager (SM) always serves as the Emergency Coordinator (EC) during the initiating event even if the SM is out of the control room. The Control Room Supervisor (CRS) assumes operational command and control responsibility for the shift crew but not as the EC. The CRS should ensure that the SM is immediately called back to the control room on any conditions that require ECG assessment.
Only if the SM is not able (sick or hurt) may the CRS serve as the EC.1. EC Judgment The EALs described in the ECG are not all inclusive and will not identify each and every condition, parameter or event which could lead to an event classification.
The following guidance should be used by the EC: IF an EAL has been exceeded, but satisfaction of the Initiating Condition (IC) is in question, THEN CLASSIFY the event lAW the EAL.IF however, it is clear that the EAL has NOT been exceeded (and will not), THEN DO NOT classify the event.IF an IC has been satisfied, but exceeding the specific EAL is in question, THEN CLASSIFY the event lAW the IC.In any case, IF the plant conditions are equivalent to one of the four emergency classes as described in Section 2 of EP-HC-1 11-201, THEN CLASSIFY the event based on EC discretion lAW EALs in Category H.2. Assessment Time 2.1 Timeliness Assessment of an Emergency Condition should be completed in a timely manner, which is considered to be within 15 minutes of when events are known or should have been known.If an EAL specifies a duration time (e.g., loss of annunciators for 15 minutes or longer), the assessment time runs concurrently with the EAL duration time and is the same length.Hope Creek Page 1 of 8 Rev. 0 (draft E)Usage HCGS ECG -EAL Technical Bases EP-HC-1 11-202 2.2 Duration Time Exceeded If an event is recognized or reported and the required duration time is known to have already been exceeded, the duration portion of the EAL should be considered as being satisfied and the assessment time for the remaining portions of the EAL should be within 15 minutes from the time of recognition.
- 3. Implementing Actions The ECG is not a stand-alone document.
At times, the ECG will refer the user to other attachments or procedures for accomplishment of specific evolutions such as: Accountability, Recovery, development of PARs, etc. The ECG should be considered an "Implementing Procedure" and used in accordance with the requirements of a Level 2 -Reference Use procedure as defined in HU-AA-1 04-101, Procedure Use and Adherence.
The ECG classification sections allow for judgment and decision making as to whether or not an EAL is exceeded.NOTE Comparison of redundant instrumentation, indications, and/or alarms should be used to confirm actual plant conditions.
- 4. Classification The primary tools for determining the emergency classification level are the EAL wallcharts.
The user of the EAL wallcharts may (but is not required to) consult the EAL Technical Bases in order to obtain additional information concerning the EALs under classification consideration.
To use the EAL wallcharts, follow this sequence: 1. Assess the event and/or plant conditions and determine which EAL Group is most appropriate.
- 2. Review EAL categories and subcategories on the appropriate wallcharts.
- 3. For each applicable subcategory, review EALs in the subcategory beginning with the highest emergency classification level to the lowest classification level (left to right).4. If the HOT conditions wallchart is employed, also review the Fission Product Barrier (FPB) Table (Wallchart sheet 3) as follows: a. Examine the FPB categories in the left column of the table.b. Select the category that most likely coincides with event conditions.
- c. Review all thresholds in this category for each fission product barrier.d. For each threshold that is exceeded, identify its point value and determine the classification level in accordance with the instructions on the Fission Product Barrier Table (or in EAL Technical Basis, Attachment 1).Hope Creek Page 2 of 8 Rev. 0 (draft E)Usage HCGS ECG -EAL Technical Bases EP-HC-1 11-202 NOTE The Emergency Coordinator should classify and declare an emergency before an Emergency Action Level (EAL) is exceeded if, in the EC's judgment, it is determined that the EAL will be exceeded within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> 5. REVIEW the associated EALs as compared to the event and SELECT the highest appropriate emergency.
If identification of an EAL is questionable refer to paragraph 1 above.If there is any doubt with regard to assessment of a particular EAL, the ECG EAL Technical Basis Document should be reviewed.
Words contained in an EAL that appear in uppercase and bold print (e.g., VALID) are defined at the end of the basis for the EAL. Words or numbers contained in an EAL that are in bold print but not uppercase are EAL threshold values (e.g., _ 15 minutes).6. If an EAL has been exceeded, equal level EALs or lower level EALs are not required to be seperately reported as long as the applicable information is communicated to the NRC using ECG Attachment 5, EP-HC-1 11-F5, NRC Data Sheet Completion Reference.
- 7. When the Shift Manager (SM) is the Emergency Coordinator, the Shift Technical Advisor (STA) is responsible to perform an independent verification of the EAL classification.
The STA verification does not alleviate the requirement of the SM to make a timely classification.
Should the SM fill the STA role, independent verification of the EAL classification will be delegated to another on-shift SRO, the Independent Assessor.8. Identify and implement the referenced ECG form based on the Emergency Classification Level." Unusual Event Implement EC-HC-1 11-F1" Alert Implement EC-HC-1 11-F2* Site Area Emergency Implement EC-HC-1 11-F3* General Emergency Implement EC-HC-111-F4" Unusual Event (Common Site) Implement EC-HC-111-F8
- 9. Continue assessment after classification and attachment initiation, by returning to the EAL wallcharts to review EALs that may result in escalation/de-escalation of the emergency level.Hope Creek Page 3 of 8 Rev. 0 (draft E)Usage HCGS ECG -EAL Technical Bases EP-HC-1 11-202 5. Emergency Short Duration Events 1. A Short Duration emergency event is a transitory event that meets or exceeds one or more EALs for less than 15 minutes (i.e., action is taken and the plant returned to a condition in which no EAL applies).
For a Short Duration event the Control Room Staff is aware of the event and realizes that an EAL had been exceeded.2. Short Duration events that occur will be assessed and emergency classification made, if appropriate, within 15 minutes of control room indications or the receipt of the information, indicating that an EAL has or had been exceeded.
This classification is to be made even if no EALs are currently being exceeded (i.e., actions have been taken to stabilize the Plant such that no EALs currently apply).3. For some events, the condition may be corrected before a declaration has been made.The key consideration in this situation is to determine whether or not further plant damage occurred while the corrective actions were being taken. In some situations, this can be readily determined, in other situations, further analyses (e.g., coolant radiochemistry sampling, may be necessary).
Classify the event as indicated and terminate the emergency once assessment shows that there were no consequences from the event and other termination criteria are met.4. Guidance for classifying transient events addresses the period of time of event recognition and classification (15 minutes).
However, in cases when EAL declaration criteria may be met momentarily during the normal expected response of the plant, declaration requirements should not be considered to be met when the conditions are a part of the designed plant response, or result from appropriate Operator actions.6. Conditions Discovered After-the-Fact There may be cases in which a plant condition that exceeded an EAL was not recognized at the time of occurrence but is identified well after the condition has occurred (e.g., as a result of routine log or record review), and the condition no longer exists. In these cases, an emergency should not be declared.
Reporting requirements of 10 CFR 50.72 are applicable and the guidance of NUREG-1022, Rev. 2, Section 3, should be applied.1. An After-the-Fact event is defined as an event that exceeded an EAL threshold and was not recognized at the time of occurrence but is identified greater than 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> after the condition has occurred (e.g., as a result of a routine log review, record review, post trip review, engineering evaluation) and the condition no longer exists.2. For an After-the-Fact event the Control Room Staff was either not aware of the event or did not realize that an EAL was exceeded at the time of the occurrence.
- 3. Plant emergency events that are in progress or have occurred with ongoing adverse consequences/effects should not be considered After-the-Fact events and should therefore be classified and declared as an ongoing emergency event.Hope Creek Page 4 of 8 Rev. 0 (draft E)Usage HCGS ECG -EAL Technical Bases EP-HC-1 11-202 4. EMERGENCY CONDITIONS
-After-the-Fact events that occur will be assessed and evaluated to ensure that no EAL currently applies. An emergency declaration is NOT required and a non-emergency, One-Hour Report should be initiated in accordance with non-emergency RALs in the ECG.7. NRC Communications During An Emergency Guidance 1, Complete and accurate communications with the NRC Operations Center during emergencies is required and expected.
The purpose of notifying the NRC within one-hour of an emergency, is to provide event information when immediate NRC action may be required to protect the public health and safety OR when the NRC needs accurate and timely information to respond to heightened public concern. If the information we provide is not accurate or does not contain sufficient detail, then we hamper the NRC from doing their job.2. The NRC Data Sheet, along with the Initial Contact Message Form, is the primary vehicle to ensure the NRC is kept informed.
General Guidance on completing the event description portion of the NRC Data Sheet is provided in the NRC Data Sheet (ECG Attachment 5).8. Event Retraction Guidance IF an ENS notification to the NRC was made as directed by the applicable ECG Attachment AND it is later determined that the event or condition is not reportable, THEN the notification may be retracted as follows: 1. OBTAIN both the Operations Shift Manager's and Shift Manager's approval of any proposed retractions.
Ensure Reg Assurance is consulted prior to approval to retract an Event.2. COMPLETE Page 1 of the ECG Attachment 5, EP-HC-111-F5, NRC Data Sheet Completion Reference, providing a retraction of the original notification.
Event Description Section of NRC Data Sheet should explain the rationale for the retraction.
- 3. NOTIFY the NRC Operations Center and NRC Resident Inspector.
- 4. RECORD on the NRC Data Sheet the name of the NRC contact that received the retraction information.
- 5. FORWARD the retraction NRC Data Sheet with the rest of the original attachment of the ECG that was implemented when the original notification was made to the Operations Shift Manager.Hope Creek Page 5 of 8 Rev. 0 (draft E)Usage HCGS ECG -EAL Technical Bases EP-HC-1 11-202 9. Common Site Events Guidance 1. Selected EALs in Category H (Unusual Event level only) have been designated as"Common Site" events. These events will be annotated with the words "Common Site" just below the OPCON applicability line in the wallcharts and next to the classification level in the EAL Bases document.2. The Common Site UE ECG Attachment 8, EP-HC-111-F8, Declaration of "Common Site" UE, will direct the SM to establish agreement on which SM will declare and report the event. Therefore, either Salem or Hope Creek will report Common Site Unusual Events, but not both.3. Events classified at an Alert or higher level require plant specific information to be provided to the states of New Jersey and Delaware, the NRC, and to PSEG Emergency Response Facilities and therefore will not be classified as common site events.10. EAL Classification Considerations
- 1. Planned evolutions involve preplanning to address the limitations imposed by the condition, the performance of required surveillance testing, and the implementation of specific controls prior to knowingly entering the condition in accordance with the specific requirements of the HCGS Technical Specifications.
Activities which cause the site to operate beyond that allowed by the HCGS Technical Specifications, planned or unplanned, may result in an EAL threshold being met or exceeded.
Planned evolutions to test, manipulate, repair, perform maintenance or modifications to systems and equipment that result in an EAL value being met or exceeded are not subject to classification and activation requirements as long as the evolution proceeds as planned and is within the operational limitations imposed by the specific operating license. However, these conditions may be subject to the reporting requirements of 10 CFR 50.72.2. All classifications are to be based upon VALID indications, reports or conditions.
Indications, reports or conditions are considered VALID when they are verified by (1)an instrument channel check, or (2) indications on related or redundant indications, or (3) by direct observation by plant personnel, such that doubt related to the indication's operability, the condition's existence, or the report's accuracy is removed. Implicit in this definition is the need for timely assessment.
- 3. Although the majority of the EALs provide very specific thresholds, the Emergency Coordinator must remain alert to events or conditions that lead to the conclusion that exceeding the EAL is IMMINENT.
If, in the judgment of the Emergency Coordinator, an IMMINENT situation is at hand, the classification should be made as if the threshold has been exceeded.
While this is particularly prudent at the higher emergency classification levels (as the early classification may provide for more effective implementation of protective measures), it is nonetheless applicable to all emergency classification levels.Hope Creek Page 6 of 8 Rev. 0 (draft E)Usage HCGS ECG -EAL Technical Bases EP-HC-1 11-202 4. When multiple simultaneous events occur, the emergency classification level is based on the highest EAL reached. For example, two Alerts remain in the Alert category.
Or, an Alert and a Site Area Emergency is a Site Area Emergency.
Further guidance is provided in RIS 2007-02, Clarification of NRC Guidance for Emergency Notifications During Quickly Changing Events.5. Another important aspect of usable EAL guidance is the consideration of what to do when the risk posed by an emergency is clearly decreasing.
A combination approach involving recovery from General Emergencies and some Site Area Emergencies and termination from Unusual Events, Alerts, and certain Site Area Emergencies causing no long term plant damage appears to be the best choice. Downgrading to lower emergency classification levels adds notifications but may have merit under certain circumstances.
Refer to procedure NC.EP-EP.ZZ-0405, Emergency Termination
-Reduction
-Recovery, for detailed directions.
- 6. The logic used for the Fission Product Barrier EALs reflects the following considerations:
- The Fuel Clad Barrier and the RCS Barrier are weighted more heavily than the Primary Containment Barrier. Unusual Events associated with RCS and Fuel Clad Barriers are addressed under EALs in Category S, System Malfunctions.
- The ability to escalate to higher emergency classification 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 Primary 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 Primary Containment barrier. When no event is in progress (Loss or Potential Loss of either Fuel Clad and/or RCS barrier) the Primary Containment Barrier status is addressed by Technical Specifications.
Hope Creek Page 7 of 8 Rev. 0 (draft E)Usage HCGS ECG -EAL Technical Bases EP-HC-1 11-202 This page intentionally blank Hope Creek Page 8 of 8 Rev. 0 (draft E)Usage EALs for: Abnormal Radiological Levels&ISFSI HCGS ECG -EAL Technical Bases EP-HC-1 11-203 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: R -Abnormal Rad Levels / Rad Effluent 1 -Offsite Rad Conditions Any release of gaseous or liquid radioactivity to the environment greater than 2 times the ODCM for 60 minutes or longer All RUI.1 -UNUSUAL EVENT EAL: VALID gaseous monitor reading > Table R-1 column "UE" AND> 60 minutes have elapsed (Note 2)Note 2: The Emergency Coordinator 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.Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL# RU 1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 Table R-1 Effluent Monitor Classification Thresholds*
Release Point Monitor GE SAE ALERT UE*SPDS -(Total) SPDS Point Offsite Gas Rad Release B5097 OR OR SUM of: SUM of: FRVS Vent NG 9RX680 0 5.25E+08 5.25E+07+ + 3.OE+06 pCi/sec 3.OE+04 pCi/sec U)pCi/sec pCi/sec North Plant Vent NG 9RX590+ +South Plant 9RX580 Vent NG+ +Hardened Torus Vent NG 9RX518 The lesser of the following thresholds:
Liquid * >200X the High Alarm Setpoint 2X the High Alarm Radwaste 9RX508 Discharge
- >5.80E-02 uCi/cc Setpoint 0 >1.50E-02 uCi/cc -CST discharge only The lesser of the following"2 Cooling Tower thresholds:
2X the High Alarm Blowdown 9R506 -> 200X the High Alarm Setpoint Setpoint* >1.64E-03 pCi/cc The lesser of the following thresholds:
TB Circ Water 0 > 200X the High Alarm Setpoint 2X the High Alarm Discharge 9RX505 -> 4.80E-04 pCi/cc -for Setpoint continuous release 0 >5.80E-02 uCi/cc for batch release* For high alarm conditions on offgas pretreatment monitor 9RX621 or 9RX622, refer to EAL SU7.1 Basis: This EAL addresses a potential decrease in the level of safety of the plant as indicated by a radiological release that exceeds regulatory commitments for an extended period of time.Nuclear power plants incorporate features intended to control the release of radioactive effluents to the environment.
Administrative controls are 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.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL# RU 1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 The multiple of two times the ODCM limits is specified in EAL RU1.1 only to distinguish between non-emergency conditions.
While this multiple obviously corresponds to an off-site dose or dose rate, the emphasis in classifying this event is the degradation in the level of safety of the plant, not the magnitude of the associated dose or dose rate.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.Explanation/Discussion/Definitions:
The column "UE" gaseous release value in Table R-1 represents two (2) times the calculated ODCM release rate limits.Instrumentation that may be used to assess this EAL is listed below:* SPDS Point B5097 -Offsite Gas Rad Release The SPDS point represents the total sum of Rad Gas Releases of the below 4 potential release pathways.* 9RX680 (RE-481 1A) FRVS Vent Noble Gas FRVS is normally maintained in a standby condition.
Upon FRVS actuation and reactor building isolation, FRVS circulates the reactor building air through HEPA and charcoal filters. Releases are made to the atmosphere via the FRVS Vent Exhaust units.* 9RX590 (RE-4873B)
North Plant Vent (NPV) Noble Gas The NPV receives discharge from the gaseous radwaste treatment system (Offgas system), Chem Lab exhaust and solid radwaste area exhaust.* 9RX580 (RE-4875B)
South Plant (SPV) Vent Noble gas The SPV receives discharge from the service/radwaste building, reactor building, condensate demineralizer, pipe chase, turbine building mechanical vacuum pumps, gland seal exhaust, and other untreated ventilation sources.* 9RX518 Hardened Torus Vent (HTV)The HTV Rad Gas Release value is a calculated release rate based on HRT Rad detectors 9RX516 (low range) or 9RX517 (high range) and the HTV flow rate. The HTV is not a normal release pathway and is only used when the primary containment is vented per EOP/SAMG guidelines.
Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL# RU 1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 Definitions:
VALID: An indication, report, or condition, is considered to be VALID when it is verified by (1) an instrument channel check, or (2) indications on related or redundant indicators, or (3) by direct observation by plant personnel, such that doubt related to the indicator's operability, the condition's existence, or the report's accuracy is removed.Implicit in this definition is the need for timely assessment.
EAL Basis Reference(s):
- 1. NEI 99-01 Rev. 5, AU1 Example EAL #1 2. HCGS Offsite Dose Calculation Manual (ODCM) Section 3.3.7.11 -Radioactive Gaseous Effluent Monitoring Instrumentation
- 3. Hope Creek Radiological EAL Setpoint Calculation Document (Attachment 6)Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL# RUI.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 EAL Category: EAL Subcategory:
Initiating Condition:
R -Abnormal Rad Levels / Rad Effluent 1 -Offsite Rad Conditions Any release of gaseous or liquid radioactivity to the environment greater than 2 times the ODCM for 60 minutes or longer EAL# & Classification Level: RU1.2 -UNUSUAL EVENT OPCON Applicability:
All EAL: ANY VALID liquid monitor reading > Table R-1 column "UE" AND_ 60 minutes have elapsed (Note 2)Note 2: The Emergency Coordinator 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.Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL# RU 1.2 HCGS ECG -EAL Technical Bases EP-HC-111-203 Table R-I Effluent Monitor Classification Thresholds*
Release Point Monitor GE SAE ALERT UE*SPDS -(Total) SPDS Point Offsite Gas Rad Release OR OR SUM of: SUM of: FRVS Vent NG 9RX680 0 5.25E+08 5.25E+07 0 + + 3.OE+06 pCi/sec 3.OE+04 pCi/sec pCi/sec pCi/sec North Plant Vent NG 9RX590+ +South Plant 9RX580 Vent NG+ +Hardened Torus Vent NG The lesser of the following thresholds:
Liquid * >200X the High Alarm Setpoint 2X the High Alarm Radwaste 9RX508 Discharge 9 >5.80E-02 uCi/cc Setpoint D >1.50E-02 uCi/cc- CST discharge only The lesser of the following" Cooling Tower thresholds:
2X the High Alarm Blowdown 9R506 -> 200X the High Alarm Setpoint Setpoint* >1.64E-03 piCi/cc The lesser of the following thresholds:
TB Circ Water .> 200X the High Alarm Setpoint 2X the High Alarm Discharge 9R505 -> 4.80E-04 pCi/cc -for Setpoint continuous release e >5.80E-02 uCi/cc for batch release For high alarm conditions on offgas pretreatment monitor 9RX621 or 9RX622, refer to EAL SU7.1 Basis: This EAL addresses a potential decrease in the level of safety of the plant as indicated by a radiological release that exceeds regulatory commitments for an extended period of time.Nuclear power plants incorporate features intended to control the release of radioactive effluents to the environment.
Administrative controls are 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.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL# RU 1.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 The multiple of two times the ODCM limits is specified in EAL RU1.2 only to distinguish between non-emergency conditions.
While this multiple obviously corresponds to an off-site dose or dose rate, the emphasis in classifying this event is the degradation in the level of safety of the plant, not the magnitude of the associated dose or dose rate.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 liquid release pathways for which a discharge permit would not normally be prepared (Cooling Water Blowdown & TB Circ Water) as well as planned batch releases for which a radioactivity discharge permit is prepared (Radwaste Discharge).
Explanation/Discussion/Definitions:
The column "UE" liquid release values in Table R-1 represent two (2) times the current High Alarm Setpoint based on the current liquid release pathway discharge permit for the specified monitor. Instrumentation that may be used to assess this EAL is listed below:* 9RX508 (RE-4861)
Liquid Radwaste Discharge (Upper Range is 5.8E-02 uCi/cc)The Liquid Radwaste Discharge Line Monitor provides the alarm and automatic termination of liquid radioactive material releases from the liquid rad waste treatment and monitoring system.* 9RX506 (RE-8817)
Cooling Tower Blowdown (Upper Range is 1.OE-02 uCi/cc)The Cooling Tower Blowdown Effluent Radiation Monitor monitors radioactivity in the cooling tower blowdown before it is discharged into the Delaware River and warns personnel of an excessive amount of radioactivity (greater than ODCM Limits) being released to the environment.
The Cooling-Tower Blowdown Effluent Monitor provides an Alarm function only for releases into the environment." 9RX505 (RE-4557)
Turbine Building Circulating Water Dewatering Sump Discharge (Upper Range is 5.8E-02 uCi/cc)The Turbine Building Circulating Water Dewatering Sump Discharge Monitor provides alarm and automatic termination of liquid radioactive releases from the circulating water dewatering sump. The sump pumps discharge to the circulating water system to the cooling tower basin. The Turbine Building Circulating Water Dewatering Sump is a normal radwaste discharge pathway and is monitored as such because of possible contamination from the Turbine Building Ventilation drains.Definitions:
VALID: An indication, report, or condition, is considered to be VALID when it is verified by (1) an instrument channel check, or (2) indications on related or redundant Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL# RUI .2 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 indicators, or (3) by direct observation by plant personnel, such that doubt related to the indicator's operability, the condition's existence, or the report's accuracy is removed.Implicit in this definition is the need for timely assessment.
EAL Basis Reference(s):
- 1. NEI 99-01 Rev. 5, AU1 Example EAL #2 2. HCGS Offsite Dose Calculation Manual (ODCM), Section 3.3.7.10 -Radioactive Liquid Effluent Monitoring Instrumentation
- 3. HCGS Offsite Dose Calculation Manual (ODCM), Table 1-1 Parameters for Liquid Alarm Setpoint Determination
- 4. HCGS Offsite Dose Calculation Manual (ODCM), Appendix A, Evaluation of Default MPC Value for Liquid Effluent Monitors 5. HC UFSAR TABLE 11.5-1 -Hope Creek Radiation Monitoring Systems, Rev 10 Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL# RU 1.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 EAL Category: EAL Subcategory:
Initiating Condition:
R -Abnormal Rad Levels / Rad Effluent 1 -Offsite Rad Conditions Any release of gaseous or liquid radioactivity to the environment greater than 2 times the ODCM for 60 minutes or longer EAL# & Classification Level: RU1.3 -UNUSUAL EVENT OPCON Applicability:
All EAL: Confirmed sample analyses for gaseous or liquid releases indicate concentrations or release rates > Table R-2 column "UE" AND_ 60 minutes have elapsed (Note 2)Note 2: The Emergency Coordinator 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.Table R-2 Effluent Sample Classification Thresholds Release Point Sample ALERT UE NG 7.10E-01 VCi/cc 7.10E-03 piCi/cc FRVS Vent 1-131 8.20E-04 ItCi/cc 8.20E-06 pCi/cc NG 1.52E-01 1.52E-03 pCi/cc o North Plant Vent 1-131 1.80E-04 pCi/cc 1.80E-06 VCi/cc o NG 1.44E-02 pCi/cc 1.44E-04 ptCi/cc South Plant Vent 1-131 1.68E-05 tCi/cc 1.68E-07 VCi/cc Unmonitored Isotopic 200 x ODCM 3/4.11.2 2 x ODCM 3/4.11.2 Liquid Radwaste Discharge Isotopic 200 x ODCM 3/4.11.1 2 x ODCM 3/4.11.1' Cooling Tower Blowdown Isotopic 200 x ODCM 3/4.11.1 2 x ODCM 3/4.11.1-J TB Circ Water Discharge Isotopic 200 x ODCM 3/4.11.1 2 x ODCM 3/4.11.1 Unmonitored Isotopic 200 x ODCM 3/4.11.1 2 x ODCM 3/4.11.1 Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL# RU1.3 HCGS ECG -EAL Technical Bases EP-HC-I 11-203 Basis: This EAL addresses a potential decrease in the level of safety of the plant as indicated by a radiological release that exceeds regulatory commitments for an extended period of time.Nuclear power plants incorporate features intended to control the release of radioactive effluents to the environment.
Administrative controls are 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 multiple of two times the ODCM limits is specified in EAL RU1.3 only to distinguish between non-emergency conditions.
While this multiple obviously corresponds to an off-site dose or dose rate, the emphasis in classifying this event is the degradation in the level of safety of the plant, not the magnitude of the associated dose or dose rate.This EAL 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 for > 60 minutes.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, etc.The underlying basis of this EAL involves the degradation in the level of safety of the plant implied by the uncontrolled release.Explanation/Discussion/Definitions:
Releases in excess of two times the site Offsite Dose Calculation Manual (ODCM) Section 3/4.11.1 or 3/4.11.2 limits that continue for 60 minutes or longer represent an uncontrolled situation and hence, a potential degradation in the level of safety. The final integrated dose (which is very low in the UNUSUAL EVENT emergency class) is not the primary concern here;it is the degradation in plant control implied by the fact that the release was not isolated within 60 minutes.Table R-2 provides calculated radiological release noble gas and iodine sample concentrations that equate to a release that is 2 times the ODCM limits (Section 3/4.11.2) of 500 mRem/year as well as specifying liquid release effluent sample streams 2 times the ODCM limits (Section 3/4.11.1.1, Liquid Effluent Concentrations).
Hope Creek has three gaseous release points for which sample concentration thresholds have been calculated." FRVS -Filtration Recirculation Vent System* NPV- North Plant Vent* SPV -South Plant Vent Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL# RU 1.3 HCGS ECG -EAL Technical Bases EP-HC-111-203 EAL Basis Reference(s):
-Liquid Effluents Concentrations
- 3. Off-Site Dose Calculation Manual, Section 3/4.11.2.1
-Gaseous Effluents Dose Rates 4. Hope Creek Radiological EAL Setpoint Calculation Document (Attachment 6)Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL# RU1.3 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL# RU 1.3 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: R -Abnormal Rad Levels / Rad Effluent 1 -Offsite Rad Conditions Any release of gaseous or liquid radioactivity to the environment greater than 200 times the ODCM for 15 minutes or longer All RAI.1 -ALERT EAL: VALID gaseous monitor reading > Table R-1 column "ALERT" AND_ 15 minutes have elapsed (Note 2)Note 2: The Emergency Coordinator 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.Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL# RAI .1 HCGS ECG -EAL Technical Bases EP-HC-111-203 Table R-1 Effluent Monitor Classification Thresholds*
Release Point Monitor GE SAE ALERT UE*SPDS -(Total) SPDS Point Offsite Gas Rad Release OR OR SUM of: SUM of: FRVS Vent NG 9RX680 0 5.25E+08 5.25E+07+ + 3.OE+06 pCi/sec 3.OE+04 pCi/sec U) pCi/sec pCi/sec North Plant Vent NG 9RX590+ +South Plant 9RX580 Vent NG+ +Hardened Torus Vent NG The lesser of the following thresholds:
Liquid * >200X the High Alarm Setpoint 2X the High Alarm Radwaste 9RX508 Discharge
- >5.80E-02 uCi/cc Setpoint 0 >1.50E-02 uCi/cc -CST discharge only The lesser of the following:2 Cooling Tower thresholds:
2X the High Alarm Blowdown 9R506 -> 200X the High Alarm Setpoint Setpoint"' * >1.64E-03 pCi/cc The lesser of the following thresholds:
TB Circ Water 0 > 200X the High Alarm Setpoint 2X the High Alarm Discharge 9RX505 -> 4.80E-04 jaCi/cc -for Setpoint continuous release* >5.80E-02 uCi/cc for batch release For high alarm conditions on offgas pretreatment monitor 9RX621 or 9RX622, refer to EAL SU7.1 Basis: This EAL addresses an actual or substantial potential decrease in the level of safety of the plant as indicated by a radiological release that exceeds regulatory commitments for an extended period of time.Nuclear power plants incorporate features intended to control the release of radioactive effluents to the environment.
Administrative controls are 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.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL# RA1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 The multiple of two hundred times the ODCM limits is specified in EAL RAI.1 only to distinguish between non-emergency conditions.
While this multiple obviously corresponds to an off-site dose or dose rate, the emphasis in classifying this event is the degradation in the level of safety of the plant, not the magnitude of the associated dose or dose rate.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.Explanation/Discussion/Definitions:
The column "ALERT" gaseous release value in Table R-1 represents two hundred (200) times the calculated ODCM gaseous release rate limits.Instrumentation that may be used to assess this EAL is listed below:* SPDS Point B5097 -Offsite Gas Rad Release The SPDS point represents the total sum of Rad Gas Releases of the below 4 potential release pathways.* 9RX680 (RE-481 1A) FRVS Vent Noble Gas FRVS is normally maintained in a standby condition.
Upon FRVS actuation and reactor building isolation, FRVS circulates the reactor building air through HEPA and charcoal filters. Releases are made to the atmosphere via the FRVS Vent Exhaust units.* 9RX590 (RE-4873B)
North Plant Vent (NPV) Noble Gas The NPV receives discharge from the gaseous radwaste treatment system (Offgas system), Chem Lab exhaust and solid radwaste area exhaust.* 9RX580 (RE-4875B)
South Plant (SPV) Vent Noble gas The SPV receives discharge from the service/radwaste building, reactor building, condensate demineralizer, pipe chase, turbine building mechanical vacuum pumps, gland seal exhaust, and other untreated ventilation sources* 9RX518 Hardened Torus Vent (HTV)The HTV Rad Gas Release value is a calculated release rate based on HRT Rad detectors 9RX516 (low range) or 9RX517 (high range) and the HTV flow rate. The HTV is not a normal release pathway and is only used when the primary containment is vented per EOP/SAMG guidelines.
Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL# RA1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11 -203 Definitions:
VALID: An indication, report, or condition, is considered to be VALID when it is verified by (1) an instrument channel check, or (2) indications on related or redundant indicators, or (3) by direct observation by plant personnel, such that doubt related to the indicator's operability, the condition's existence, or the report's accuracy is removed.Implicit in this definition is the need for timely assessment.
EAL Basis Reference(s):
- 1. NEI 99-01 Rev. 5, AA1 Example EAL #1 2. HCGS Offsite Dose Calculation Manual (ODCM) Section 3.3.7.11 -Radioactive Gaseous Effluent Monitoring Instrumentation
- 3. Hope Creek Radiological EAL Setpoint Calculation Document (Attachment 6)Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL# RA1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 EAL Category: EAL Subcategory:
Initiating Condition:
R -Abnormal Rad Levels / Rad Effluent 1 -Offsite Rad Conditions Any release of gaseous or liquid radioactivity to the environment greater than 200 times the ODCM for 15 minutes or longer EAL# & Classification Level: RA1.2 -ALERT OPCON Applicability:
All EAL: ANY VALID liquid monitor reading > Table R-1 column "ALERT" AND> 15 minutes have elapsed (Note 2)Note 2: The Emergency Coordinator 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.Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: RA1.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 Table R-1 Effluent Monitor Classification Thresholds*
Release Point Monitor GE SAE ALERT UE*SPDS -(Total) SPDS Point Offsite Gas Rad Release OR OR SUM of: SUM of:Vent NG 9RX680 0 5.25E+08 5.25E+07+ + 3.OE+06 pJCi/sec 3.OE+04 pCi/sec pCi/sec pCi/sec North Plant Vent NG+ +South Plant 9RX580 Vent NG+ +Hardened Torus Vent NG The lesser of the following thresholds:
Liquid * >200X the High Alarm Setpoint 2X the High Alarm Radwaste 9RX508 Discharge
- >5.80E-02 uCi/cc Setpoint 0 >1.50E-02 uCi/cc -CST discharge only The lesser of the following 2 Cooling Tower Rthresholds:
2X the High Alarm"9 olngTwr 9RX506 -----Blowdown 0 > 200X the High Alarm Setpoint Setpoint.>1.64E-03 VCi/cc The lesser of the following thresholds:
TB Circ Water .> 200X the High Alarm Setpoint 2X the High Alarm Discharge 9RX505 -> 4.80E-04 pCi/cc -for Setpoint continuous release* >5.80E-02 uCi/cc for batch release* For high alarm conditions on offgas pretreatment monitor 9RX621 or 9RX622, refer to EAL SU7.1 Basis: This EAL addresses an actual or substantial potential decrease in the level of safety of the plant as indicated by a radiological release that exceeds regulatory commitments for an extended period of time.Nuclear power plants incorporate features intended to control the release of radioactive effluents to the environment.
Administrative controls are 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.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: RA1.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 The multiple of two hundred times the ODCM limits is specified in EAL RA1.2 only to distinguish between non-emergency conditions.
While this multiple obviously corresponds to an off-site dose or dose rate, the emphasis in classifying this event is the degradation in the level of safety of the plant, not the magnitude of the associated dose or dose rate.This EAL 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.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 (Cooling Water Blowdown & TB Circ Water) as well as planned batch releases for which a radioactivity discharge permit is prepared (Radwaste Discharge).
Explanation/Discussion/Definitions:
Since the "high alarm" setpoint of the liquid release radiation monitors may vary based on the latest release discharge permit, the ALERT column for liquid release values in Table R-1 was developed taking into consideration setpoint variability, monitor range and the default high alarm setpoints provided in the ODCM.The EAL thresholds in Table R-1 for the ALERT call for the user to determine the lessor of either two hundred (200) times the current high alarm setpoint (if still within the monitor's indicating range) or two hundred (200) times the ODCM default high alarm setpoint.
For monitors that would be over-range using the two hundred (200) times the ODCM default High Alarm Setpoint, the high end range value was chosen as the EAL threshold.
Instrumentation that may be used to assess this EAL is listed below: " 9RX508 (RE-4861)
Liquid Radwaste Discharge (Upper Range is 5.8E-02 uCi/cc)The Liquid Radwaste Discharge Line Monitor provides the alarm and automatic termination of liquid radioactive material releases from the liquid rad waste treatment and monitoring system. Since 200 times the ODCM default High Alarm Setpoint would be well above the range of the monitor's indication, the monitor's upper range of 5.8E-02 uCi/cc was selected as an EAL threshold, for discharges not from the CST, to be used only if 200 times the discharge permit calculated High Alarm Setpoint is not within the monitors indicating range. For CST only discharges, the EAL threshold value represents two hundred (200) times the ODCM default High Alarm Setpoint.* 9RX506 (RE-8817)
Cooling Tower Blowdown (Upper Range is 1.OE-02 uCi/cc)The Cooling Tower Blowdown Effluent Radiation Monitor monitors radioactivity in the cooling tower blowdown before it is discharged into the Delaware River and warns personnel of an excessive amount of radioactivity (greater than ODCM Limits) being released to the environment.
The Cooling-Tower Blowdown Effluent Monitor provides an Alarm function only for releases into the environment.
The EAL threshold value represents two hundred (200) times the ODCM default High Alarm Setpoint.Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: RA1.2 HCGS ECG -EAL Technical Bases EP-HC-111-203 0 9RX505 (RE-4557)
Turbine Building Circulating Water Dewatering Sump Discharge (Upper Range is 5.8E-02 uCi/cc)The Turbine Building Circulating Water Dewatering Sump Discharge Monitor provides alarm and automatic termination of liquid radioactive releases from the circulating water dewatering sump. The sump pumps discharge to the circulating water system to the cooling tower basin. The Turbine Building Circulating Water Dewatering Sump is a normal radwaste continuous discharge pathway and is monitored as such because of possible contamination from the Turbine Building Ventilation drains. The EAL threshold value for continuous releases represents two hundred (200) times the ODCM default High Alarm Setpoint.
For a batch release, 200 times the ODCM default High Alarm Setpoint would be well above the range of the monitor's indication and therefore the monitor's upper range of 5.8E-02 uCi/cc was selected as an EAL threshold for batch release only.Definitions:
VALID: An indication, report, or condition, is considered to be VALID when it is verified by (1) an instrument channel check, or (2) indications on related or redundant indicators, or (3) by direct observation by plant personnel, such that doubt related to the indicator's operability, the condition's existence, or the report's accuracy is removed.Implicit in this definition is the need for timely assessment.
EAL Basis Reference(s):
- 1. NEI 99-01 Rev. 5, AA1 Example EAL #2 2. HCGS Offsite Dose Calculation Manual (ODCM) Section 3.3.7.10 -Radioactive Liquid Effluent Monitoring Instrumentation
- 3. HCGS Offsite Dose Calculation Manual (ODCM) Table 1-1 Parameters for Liquid Alarm Setpoint Determination
- 4. HCGS Offsite Dose Calculation Manual (ODCM), Appendix A, Evaluation of Default MPC Value for Liquid Effluent Monitors 5. HC UFSAR TABLE 11.5-1 -Hope Creek Radiation Monitoring Systems, Rev 10 Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: RA1.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 EAL Category: EAL Subcategory:
Initiating Condition:
EAL# & Classification Level: OPCON Applicability:
R -Abnormal Rad Levels / Rad Effluent 1 -Offsite Rad Conditions Any release of gaseous or liquid radioactivity to the environment greater than 200 times the ODCM for 15 minutes or longer RA1.3 -ALERT All EAL: Confirmed sample analyses for gaseous or liquid releases indicate concentrations or release rates > Table R-2 column "ALERT" AND> 15 minutes have elapsed (Note 2)Note 2: The Emergency Coordinator 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.Table R-2 Effluent Sample Classification Thresholds Release Point Sample ALERT UE NG 7.10E-01 jICi/cc 7.10E-03 pCi/cc FRVS Vent 1-131 8.20E-04 p[Ci/cc 8.20E-06 pCi/cc NG 1.52E-01 pCi/cc 1.52E-03 pCi/ccý0North Plant Vent 1-131 1.80E-04 [iCi/cc 1.80E-06 pCi/cc Cu o NG 1.44E-02 ltCi/cc 1.44E-04 VCi/cc South Plant Vent 1-131 1.68E-05 pCi/cc 1.68E-07 ptCi/cc Unmonitored Isotopic 200 x ODCM 3/4.11.2 2 x ODCM 3/4.11.2 Liquid Radwaste Discharge Isotopic 200 x ODCM 3/4.11.1 2 x ODCM 3/4.11.1'S Cooling Tower Blowdown Isotopic 200 x ODCM 3/4.11.1 2 x ODCM 3/4.11.1." TB Circ Water Discharge Isotopic 200 x ODCM 3/4.11.1 2 x ODCM 3/4.11.1 Unmonitored Isotopic 200 x ODCM 3/4.11.1 2 x ODCM 3/4.11.1 Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: RA1.3 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 Basis: This EAL addresses an actual or substantial potential decrease in the level of safety of the plant as indicated by a radiological release that exceeds regulatory commitments for an extended period of time.Nuclear power plants incorporate features intended to control the release of radioactive effluents to the environment.
Administrative controls are 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 multiple of two hundred times the ODCM limits is specified in EAL RA1.3 only to distinguish between non-emergency conditions.
While this multiple obviously corresponds to an off-site dose or dose rate, the emphasis in classifying this event is the degradation in the level of safety of the plant, not the magnitude of the associated dose or dose rate.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, etc.Explanation/Discussion/Definitions:
Confirmed sample analyses in excess of two hundred times the site Offsite Dose Calculation Manual Section 3/4.11.1 or 3/4.11.2 limits that continue for 15 minutes or longer represent an uncontrolled situation and hence, a potential degradation in the level of safety. This event escalates from the UNUSUAL EVENT by raising the magnitude of the release by a factor of 100 over the UNUSUAL EVENT level (i.e., 200 times ODCM).Table R-2 provides calculated radiological release noble gas and iodine sample concentrations that equate to a release that is 200 times the ODCM limit (Section 3/4.11.2) of 500 mRem/year as well as specifying liquid release effluent sample streams 200 times the ODCM limits (Section 3/4.11.1.1 Liquid Effluent Concentrations).
Hope Creek has three gaseous release points for which sample concentration thresholds have been calculated." FRVS -Filtration Recirculation Vent System* NPV -North Plant Vent" SPV- South Plant Vent The required release duration was reduced to 15 minutes in recognition of the raised severity.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: RA1.3 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 EAL Basis Reference(s):
- 1. NEI 99-01 Rev. 5, AA1 Example EAL #3 2. Off-Site Dose Calculation Manual, Section 3/4.11.1 -Liquid Effluents Concentrations
- 3. Off-Site Dose Calculation Manual, Section 3/4.11.2.1
-Gaseous Effluents Dose Rates 4. Hope Creek Radiological EAL Setpoint Calculation Document (Attachment 6)Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: RAI.3 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: RA1.3 HCGS ECG -EAL Technical Bases EP-HC-111-203 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
R -Abnormal Rad Levels / Rad Effluent 1 -Offsite Rad Conditions Off-site dose resulting from an actual or IMMINENT release of gaseous radioactivity greater than 100 mRem TEDE or 500 mRem Thyroid CDE for the actual or projected duration of the release All EAL# & Classification Level: RSI.1 -SITE AREA EMERGENCY EAL: VALID gaseous monitor reading > Table R-1 column "SAE" AND Dose assessment results are NOT available AND_ 15 minutes have elapsed (Note 1)Note 1: If dose assessment results are available, declaration should be based on dose assessment (EAL RS1.2) instead of gaseous monitor values. Do NOT delay declaration awaiting dose assessment results.The Emergency Coordinator 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.Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: RS 1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 Table R-1 Effluent Monitor Classification Thresholds*
Release Point Monitor GE SAE ALERT UE*SPDS -(Total) SPDS Point Offsite Gas Rad Release OR OR SUM of: SUM of:Vent NG 9RX680 0 5.25E+08 5.25E+07+ + 3.OE+06 pCi/sec 3.OE+04 pCi/sec I+Ci/sec IpCi/sec S North Plant Vent NG 9RX590+ +South Plant 9RX580 Vent NG+ +Hardened Torus Vent NG 9RX518 The lesser of the following thresholds:
Liquid * >200X the High Alarm Setpoint 2X the High Alarm Radwaste 9RX508 Discharge
- >5.80E02 uCi/cc Setpoint 0 >1.50E-02 uCi/cc- CST discharge only The lesser of the following:2 Cooling Tower thresholds:
2X the High Alarm"5 Blwdown 9RX506 o- Blowdown * > 200X the High Alarm Setpoint Setpoint-j * >1.64E-03 pCi/cc The lesser of the following thresholds:
TB Circ Water .> 200X the High Alarm Setpoint 2X the High Alarm Discharge 9RX505 -> 4.80E-04 i.Ci/cc- for Setpoint continuous release* >5.80E-02 uCi/cc for batch release For high alarm conditions on offgas pretreatment monitor 9RX621 or 9RX622, refer to EAL SU7.1 Basis: This EAL 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 EALs, this EAL 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.
Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: RS 1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 The TEDE dose which forms the bases for the specified effluent monitor threshold is set at 10% of the EPA PAG.The Table R-1 monitor list includes effluent monitors on all potential release pathways.Since dose assessment is based on actual meteorology, whereas the monitor reading EAL is 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 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 EAL.Explanation/Discussion/Definitions:
This EAL address gaseous radioactivity releases, that for whatever reason, cause effluent radiation monitor readings corresponding to site boundary doses that exceed 100 mRem TEDE.The column "SAE" gaseous effluent release value in Table R-1 corresponds to calculated doses of 10% of the EPA Protective Action Guidelines (TEDE).Instrumentation that may be used to assess this EAL is listed below: " SPDS Point B5097 -Offsite Gas Rad Release The SPDS point represents the total sum of Rad Gas Releases of the below 4 potential release pathways.* 9RX680 (RE-4811A)
FRVS Vent Noble Gas FRVS is normally maintained in a standby condition.
Upon FRVS actuation and reactor building isolation, FRVS circulates the reactor building air through HEPA and charcoal filters. Releases are made to the atmosphere via the FRVS Vent Exhaust units." 9RX590 (RE-4873B)
North Plant Vent (NPV) Noble Gas The NPV receives discharge from the gaseous radwaste treatment system (Offgas system), Chem Lab exhaust and solid radwaste area exhaust.* 9RX580 (RE-4875B)
South Plant (SPV) Vent Noble gas The SPV receives discharge from the service/radwaste building, reactor building, condensate demineralizer, pipe chase, turbine building mechanical vacuum pumps, gland seal exhaust, and other untreated ventilation sources.Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: RS1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-203* 9RX518 Hardened Torus Vent (HTV)The HTV Rad Gas Release value is a calculated release rate based on HRT Rad detectors 9RX516 (low range) or 9RX517 (high range) and the HTV flow rate. The HTV is not a normal release pathway and is only used when the primary containment is vented per EOP/SAMG guidelines.
If dose assessment results are available, EAL RS1.2 would dictate the need for a Site Area Emergency classification due to abnormal radiation effluents.
Definitions:
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 within approximately 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> (unless a different time is specified).
VALID: An indication, report, or condition, is considered to be VALID when it is verified by (1) an instrument channel check, or (2) indications on related or redundant indicators, or (3) by direct observation by plant personnel, such that doubt related to the indicator's operability, the condition's existence, or the report's accuracy is removed.Implicit in this definition is the need for timely assessment.
EAL Basis Reference(s):
- 1. NEI 99-01 Rev. 5, AS1 Example EAL #1 2. HCGS Offsite Dose Calculation Manual (ODCM) Section 3.3.7.11 -Radioactive Gaseous Effluent Monitoring Instrumentation
- 3. Hope Creek Radiological EAL Setpoint Calculation Document (Attachment 6)Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: RSI .1 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 EAL Category: EAL Subcategory:
Initiating Condition:
R -Abnormal Rad Levels / Rad Effluent 1 -Offsite Rad Conditions Off-site dose resulting from an actual or IMMINENT release of gaseous radioactivity greater than 100 mRem TEDE or 500 mRem Thyroid CDE for the actual or projected duration of the release EAL# & Classification Level: RS1.2 -SITE AREA EMERGENCY OPCON Applicability:
All EAL: Dose assessment using actual meteorology indicates TEDE 4-day dose > 4.OE+02 mRem or Thyroid CDE dose > 2.OE+03 mRern at or beyond the MINIMUM EXCLUSION AREA (MEA)Basis: This EAL addresses radioactivity releases that result in doses at or beyond the MINIMUM EXCLUSION AREA (MEA) 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 EALs, this EAL 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 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.Since dose assessment is based on actual meteorology, whereas the monitor reading EAL is 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 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 EAL.Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: RS 1.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 Explanation/Discussion/Definitions:
The dose assessment output on the Station Status Checklist (SSCL) is reported at varying distances from the plant as a TEDE 4-Day dose. This TEDE 4-day dose assumes a 4 hr release duration.
To obtain the approximate dose for a projected release condition of 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, the TEDE 4-day dose value would need to be divided by 4.A TEDE 4-Day Dose > 4.0E+02 mRem correspond directly to a TEDE dose rate value of 100 mRem/hr and exceeds 10% of the EPA Protective Actions Guides (PAGs). The Thyroid-CDE Dose > 2.0E+03 mRem correspond directly to an CDE dose rate value of 500 mRem/hr and exceeds 10% of the EPA Protective Actions Guides (PAGs) which was established in consideration of the 1:5 ratio of the EPA PAG for TEDE and thyroid CDE.For the purposes of this EAL, the Site Boundary for HCGS is the MINIMUM EXCLUSION AREA distance; see definition below.Definitions:
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 within approximately 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> (unless a different time is specified).
MINIMUM EXCLUSION AREA (MEA): The closest location just beyond the OWNER CONTROLLED AREA where a member of the general public could gain access. For Hope Creek the MEA is 0.56 miles.OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.EAL Basis Reference(s):
- 1. NEI 99-01 Rev. 5, AS1 Example EAL #2 2. Hope Creek Radiological EAL Setpoint Calculation Document (Attachment 6)Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: RS 1.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 EAL Category: EAL Subcategory:
Initiating Condition:
EAL# & Classification Level: OPCON Applicability:
EAL: R -Abnormal Rad Levels / Rad Effluent 1 -Offsite Rad Conditions Off-site dose resulting from an actual or IMMINENT release of gaseous radioactivity greater than 100 mRem TEDE or 500 mRem Thyroid CDE for the actual or projected duration of the release RS1.3 -SITE AREA EMERGENCY All Field survey results indicate closed window dose rates > 100 mRem/hr expected to continue for >_ 1 hr at or beyond the PROTECTED AREA BOUNDARY OR Analyses of field survey samples indicate 1-131 concentration
> 3.85E-07 [tCi/cc at or beyond the PROTECTED AREA BOUNDARY Basis: This EAL addresses radioactivity releases that result in doses at or beyond the PROTECTED AREA 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 EALs, this EAL 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 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.Explanation/Discussion/Definitions:
This EAL addresses a radioactivity release field survey 1-131 sample concentration or count rate that would result in a Thyroid CDE dose of greater than 500 mRem for one hour of inhalation at or beyond the PROTECTED AREA BOUNDARY.
This value exceeds 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.Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: RS1.3 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 The lodine-131 field survey sample concentration and count rate threshold is based on 1-131 dose conversion factors (DCFs) from EPA-400. The thresholds are based on a Thyroid-CDE Dose Rate of 500 mRem/hr for 1-131.For the purposes of this EAL, the PROTECTED AREA BOUNDARY is used as it is an easily determined location to obtain a field survey dose rate reading or to obtain a field sample.Definitions:
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 within approximately 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> (unless a different time is specified).
PROTECTED AREA (PA): A security controlled area within the OWNER-CONTROLLED AREA (OCA) that is enclosed by the security perimeter fence and monitored by intrusion detection systems. Access to the PA requires proper security clearance and is controlled at the Security Center.OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.EAL Basis Reference(s):
- 1. NEI 99-01 Rev. 5, AS1 Example EAL #4 2. HCGS Offsite Dose Calculation Manual Figure 5.1.1-1, Area Plot Plan of Site 3. Hope Creek Radiological EAL Setpoint Calculation Document (Attachment 6)Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: RS1.3 HCGS ECG -EAL Technical Bases EP-HC-111-203 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: R -Abnormal Rad Levels / Rad Effluent 1 -Offsite Rad Conditions 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 All RGI.1 -GENERAL EMERGENCY EAL: VALID gaseous monitor reading > Table R-1 column "GE" AND Dose assessment results are NOT available AND_ 15 minutes have elapsed (Note 1)Note 1: If dose assessment results are available, declaration should be based on dose assessment (EAL RG1.2) instead of gaseous monitor values. Do NOT delay declaration awaiting dose assessment results.The Emergency Coordinator 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.Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: RG 1.1 HCGS ECG -EAL Technical Bases EP-HC-111-203 Table R-1 Effluent Monitor Classification Thresholds*
Release Point Monitor GE SAE ALERT UE*SPDS -(Total) SPDS Point Offsite Gas Rad Release OR OR SUM of: SUM of:Vent NG 9RX680 0 5.25E+08 5.25E+07+ + 3.0E+06 pCi/sec 3.OE+04 pCi/sec IpCi/sec pCi/sec~ North Plant 9RX590 Vent NG+ +South Plant 9RX580 Vent NG+ +Hardened Torus Vent NG The lesser of the following thresholds:
Liquid 0 >200X the High Alarm Setpoint 2X the High Alarm Radwaste 9RX508 Discharge
- >5.80E-02 uCi/cc Setpoint 0 >1.50E-02 uCi/cc -CST discharge only The lesser of the following:2 Cooling Tower thresholds:
2X the High Alarm:3 Blowdown 9 > 200X the High Alarm Setpoint Setpoint" >1.64E-03 p1Ci/cc The lesser of the following thresholds:
TB Circ Water .> 200X the High Alarm Setpoint 2X the High Alarm Discharge 9RX505 -> 4.80E-04 p.Ci/cc -for Setpoint continuous release 0 >5.80E-02 uCi/cc for batch release* For high alarm conditions on offgas pretreatment monitor 9RX621 or 9RX622, refer to EAL SU7.1 Basis: This EAL 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 EALs, this EAL 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.
Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: RG 1.1 HCGS ECG -EAL Technical Bases EP-HC-111-203 The TEDE dose which forms the bases for the specified effluent monitor threshold is set at the EPA PAG.The Table R-1 monitor list includes effluent monitors on all potential release pathways.Since dose assessment is based on actual meteorology, whereas the monitor reading EAL is not, the results from these assessments may indicate that the classification is not warranted.
For this reason, emergency implementing procedures 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 EAL.Explanation/Discussion/Definitions:
This EAL address gaseous radioactivity releases, that for whatever reason, cause effluent radiation monitor readings corresponding to site boundary doses that exceed 1000 mRem TEDE.The column GE gaseous effluent release value in Table R-1 corresponds to calculated doses of 100% of the EPA Protective Action Guidelines (TEDE).Instrumentation that may be used to assess this EAL is listed below: " SPDS Point B5097 -Offsite Gas Rad Release The SPDS point represents the total sum of Rad Gas Releases of the below 4 potential release pathways." 9RX680 (RE-481 1A) FRVS Vent Noble Gas FRVS is normally maintained in a standby condition.
Upon FRVS actuation and reactor building isolation, FRVS circulates the reactor building air through HEPA and charcoal filters. Releases are made to the atmosphere via the FRVS Vent Exhaust units." 9RX590 (RE-4873B)
North Plant Vent (NPV) Noble Gas The NPV receives discharge from the gaseous radwaste treatment system (Offgas system), Chem Lab exhaust and solid radwaste area exhaust." 9RX580 (RE-4875B)
South Plant (SPV) Vent Noble gas The SPV receives discharge from the service/radwaste building, reactor building, condensate demineralizer, pipe chase, turbine building mechanical vacuum pumps, gland seal exhaust, and other untreated ventilation sources.Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: RG1 .1 HCGS ECG -EAL Technical Bases EP-HC-1 11-203* 9RX51 8 Hardened Torus Vent (HTV)The HTV Rad Gas Release value is a calculated release rate based on HRT Rad detectors 9RX516 (low range) or 9RX517 (high range) and the HTV flow rate. The HTV is not a normal release pathway and is only used when the primary containment is vented per EOP/SAMG guidelines.
If dose assessment results are available, EAL RG1.2 would dictate the need for a General Emergency classification due to abnormal radiation effluents.
Definitions:
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 within approximately 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> (unless a different time is specified).
VALID: An indication, report, or condition, is considered to be VALID when it is verified by (1) an instrument channel check, or (2) indications on related or redundant indicators, or (3) by direct observation by plant personnel, such that doubt related to the indicator's operability, the condition's existence, or the report's accuracy is removed.Implicit in this definition is the need for timely assessment.
EAL Basis Reference(s):
- 1. NEI 99-01 Rev. 5, AG1 Example EAL #1 2. HCGS Offsite Dose Calculation Manual (ODCM) Section 3.3.7.11 -Radioactive Gaseous Effluent Monitoring Instrumentation
- 3. Hope Creek Radiological EAL Setpoint Calculation Document (Attachment 6)Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: RG 1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 EAL Category: EAL Subcategory:
Initiating Condition:
R -Abnormal Rad Levels / Rad Effluent 1 -Offsite Rad Conditions 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 EAL# & Classification Level: RG1.2 -GENERAL EMERGENCY OPCON Applicability:
All EAL: Dose assessment using actual meteorology indicates TEDE 4-day dose > 4.OE+03 mRem or Thyroid CDE dose > 2.OE+04 mRem at or beyond the MINIMUM EXCLUSION AREA (MEA)Basis: This EAL addresses radioactivity releases that result in doses at or beyond the MINIMUM EXCLUSION AREA (MEA) 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 EALs, this EAL 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 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.Since dose assessment is based on actual meteorology, whereas the monitor reading EAL is not, the results from these assessments may indicate that the classification is not warranted.
For this reason, emergency implementing procedures 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 EAL.Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: RG1.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 Explanation/Discussion/Definitions:
The dose assessment output on the SSCL is reported at varying distances from the plant as a TEDE 4-Day dose. This TEDE 4-day dose assumes a 4 hr release duration.
To obtain the approximate dose for a projected release condition of 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, the TEDE 4-day dose value would need to be divided by 4.A TEDE 4-Day Dose > 4.0E+03 mRem correspond directly to a TEDE dose rate value of 1000 mRem/hr and exceeds the EPA Protective Actions Guides (PAGs). The Thyroid-CDE Dose >2.OE+04 mRem correspond directly to an CDE dose rate value of 5000 mRem/hr and exceeds the EPA Protective Actions Guides (PAGs) which was established in consideration of the 1:5 ratio of the EPA PAG for TEDE and thyroid CDE.For the purposes of this EAL, the Site Boundary for HCGS is the MINIMUM EXCLUSION AREA distance; see definition below.Definitions:
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 within approximately 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> (unless a different time is specified).
MINIMUM EXCLUSION AREA (MEA): The closest location just beyond the OWNER CONTROLLED AREA where a member of the general public could gain access. For Hope Creek the MEA is 0.56 miles.OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.EAL Basis Reference(s):
- 1. NEI 99-01 Rev. 5, AG1 Example EAL #2 2. Hope Creek Radiological EAL Setpoint Calculation Document (Attachment 6)Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: RGI.2 HCGS ECG -EAL Technical Bases EP-HC-1 11 -203 EAL Category: EAL Subcategory:
Initiating Condition:
R -Abnormal Rad Levels / Rad Effluent 1 -Offsite Rad Conditions 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 EAL# & Classification Level: RG1.3 -GENERAL AREA EMERGENCY OPCON Applicability:
All EAL: Field survey results indicate closed window dose rates > 1000 mRem/hr expected to continue for _> 1 hr at or beyond the PROTECTED AREA BOUNDARY OR Analyses of field survey samples indicate 1-131 concentration
> 3.85E-06 pCi/cc at or beyond the PROTECTED AREA BOUNDARY Basis: This EAL addresses radioactivity releases that result in doses at or beyond the PROTECTED AREA 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 EALs, this EAL 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 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.Explanation/Discussion/Definitions:
This EAL addresses a radioactivity release field survey 1-131 sample concentration or count rate that would result in a Thyroid CDE dose of greater than 5000 mRem for one hour of inhalation at or beyond the PROTECTED AREA BOUNDARY.
This value exceeds 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.Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: RG 1.3 HCGS ECG -EAL Technical Bases EP-HC-1 11-203 The lodine-131 field survey sample concentration and count rate threshold is based on 1-131 dose conversion factors (DCFs) from EPA-400. The thresholds are based on a Thyroid-CDE Dose Rate of 5000 mRem/hr for 1-131.For the purposes of this EAL, the PROTECTED AREA BOUNDARY is used as it is an easily determined location to obtain a field survey dose rate reading or to obtain a field sample.Definitions:
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 within approximately 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> (unless a different time is specified).
PROTECTED AREA (PA): A security controlled area within the OWNER-CONTROLLED AREA (OCA) that is enclosed by the security perimeter fence and monitored by intrusion detection systems. Access to the PA requires proper security clearance and is controlled at the Security Center.OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.EAL Basis Reference(s):
- 1. NEI 99-01 Rev. 5, AG1 Example EAL #4 2. HCGS Offsite Dose Calculation Manual Figure 5.1.1-1, Area Plot Plan of Site 3. Hope Creek Radiological EAL Setpoint Calculation Document (Attachment 6)Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: RGI .3 HCGS ECG -EAL Technical Bases EP-HC-1 11-204 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: EAL: R -Abnormal Rad Levels / Rad Effluent 2 -Onsite Rad Conditions/Fuel Pool Events UNPLANNED rise in plant radiation levels All RU2.1 -UNUSUAL EVENT UNPLANNED water level drop in the reactor cavity or spent fuel pool (SFP) as indicated by ANY of the following: " Confirmed SFP low level alarm Annunciator D1-A5 (FUEL POOL LEVEL HI/LO)" Reactor Water Level Shutdown Range Indicator LI-R605-B21" Visual observation (local or remote)AND VALID area radiation monitor reading rise on ANY of the following:
- Spent Fuel Storage Pool Area (9RX707)* New Fuel Criticality A Rad (9RX612)* New Fuel Criticality B Rad (9RX613)* Temporary Refueling Bridge ARM Basis: This EAL addresses increased radiation levels as a result of water level decreases above irradiated fuel or events that have resulted, or may result, in unplanned increases in radiation dose rates within plant buildings.
These radiation increases represent a loss of control over radioactive material and represent a potential degradation in the level of safety of the plant.I The refueling pathway is the combination of cavities and pools in which spent fuel may be located. While a radiation monitor could detect an 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.Hope Creek Page 1 of 4 Rev. (draft E)EAL#: RU2.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-204 For example, an ARM reading may increase due to planned evolutions such as head lift, or even a fuel assembly being raised in the fuel grapple. 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, increased radiation monitor indications will need to 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 EAL CU3.1. This event escalates to an ALERT per EAL RA2.1 if irradiated fuel outside the RPV is uncovered.
For events involving irradiated fuel in the RPV, escalation would be via the Fission Product Barrier Table for events in OPCONS 1-3.Explanation/Discussion/Definitions:
The fuel pool low level alarm is actuated by level switch LSHL-4657 when fuel pool water level drops below 39 ft 9 in. This alarm is actuated by local panel alarm 10C214 1-1 Fuel Pool Lo Level or 10C214 1-2 Reactor Cavity Low Level. The reactor cavity low level alarms at 75 in.from LISL-N027 (L-1 1683) reactor vessel level Shutdown Range transmitter 1 BBLT-N027 (1CCLT-1 1683). The annunciator on local Panel 10C214 is always valid for low Spent Fuel Pool level, however it is only enabled for the low reactor cavity water level during refueling operations.
The annunciator on local Panel 10C214 alarms on low Spent Fuel Pool level and/or low reactor cavity water level when the annunciator is enabled.During refueling operations, the reactor cavity is flooded and reactor cavity level indication is monitored on the shutdown instrument range (LI-R605-B21).
When irradiated fuel is not seated in the RPV or SFP storage racks, there still remains the possibility of uncovering irradiated fuel during refueling operations.
Therefore, this EAL is applicable for conditions in which irradiated fuel is being transferred to and from the RPV and spent fuel pool as well as for spent fuel pool drain down events.Area radiation monitors that may respond to a loss of spent fuel shielding are those located on the 201' elevation (refuel floor):* Spent Fuel Storage Pool Area (9RX707)" New Fuel Criticality A Rad (9RX612)* New Fuel Criticality B Rad (9RX613)* Temporary Refueling Bridge ARM Definitions:
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 6onsidered to be VALID when it is verified by (1) an instrument channel check, or (2) indications on related or redundant Hope Creek Page 2 of 4 Rev. (draft E)EAL#: RU2.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-204 indicators, or (3) by direct observation by plant personnel, such that doubt related to the indicator's operability, the condition's existence, or the report's accuracy is removed.Implicit in this definition is the need for timely assessment.
EAL Basis Reference(s):
- 1. NEI 99-01 Rev. 5, AU2 Example EAL #1 2. HC.OP-AR.ZZ-001 3(Q) Overhead Annunciator Window Box D1 -A5 3. HC.OP-AR.EC-0002(Q)
Reactor Level Indication Panel 10C214 4. HC.OP-AB.COOL-004(Q)
Fuel Pool Cooling 5. HC.OP-AB.CONT-005(Q)
Irradiated Fuel Damage 6. UFSAR Table 12.3-9 Area Radiation Monitor Detector Locations 7. UFSAR Section 9.1.3.5 Instrumentation Applications
- 8. HC.IC-GP.BB-0003(Q)
Channel L-11683 / B21-N027 Rx Cavity Floodup Level/RX Shutdown Range Level Setup Hope Creek Page 3 of 4 Rev. (draft E)EAL#: RU2.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-204 This page intentionally blank Hope Creek Page 4 of 4 Rev. (draft E)EAL#: RU2.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-204 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
R -Abnormal Rad Levels / Rad Effluent 2 -Onsite Rad Conditions/Fuel Pool Events UNPLANNED rise in plant radiation levels All EAL# & Classification Level: RU2.2 -UNUSUAL EVENT EAL: UNPLANNED VALID area radiation monitor readings or survey results rise by a factor of 1,000 over normal levels (Note 7)Note 7: Normal levels can be considered as the highest reading in the past 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> excluding the current peak value Basis: This EAL addresses UNPLANNED increases in radiation dose rates within plant buildings.
These radiation increases represent a loss of control over radioactive material and represent a potential degradation in the level of safety of the plant.This EAL excludes radiation level increases 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.Explanation/Discussion/Definitions:
Definitions:
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, or (2) indications on related or redundant indicators, or (3) by direct observation by plant personnel, such that doubt related to the indicator's operability, the condition's existence, or the report's accuracy is removed.Implicit in this definition is the need for timely assessment.
Hope Creek Page 1 of 2 Rev. (draft E)EAL#: RU 2.2 HCGS ECG -EAL Technical Bases EAL Basis Reference(s):
- 1. NEI 99-01 Rev. 5, AU2 Example EAL #2 EP-HC-1 11-204 Hope Creek Page 2 of 2 Rev. (draft E)EAL#: RU2.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-204 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: EAL: R -Abnormal Rad Levels / Rad Effluent 2 -Onsite Rad Conditions/Fuel Pool Events Damage to irradiated fuel or loss of water level that has resulted or will result in the uncovering of irradiated fuel outside the RPV All RA2.1 -ALERT Damage to irradiated fuel or loss of water level (uncovering irradiated fuel outside the RPV) that causes a VALID high alarm on ANY of the following radiation monitors: " Spent Fuel Storage Pool Area (9RX707)* New Fuel Criticality A Rad (9RX612)* New Fuel Criticality B Rad (9RX613)* Refuel Floor Exhaust Duct Rad Channel A (9RX627)" Refuel Floor Exhaust Duct Rad Channel B (9RX628)* Refuel Floor Exhaust Duct Rad Channel C (9RX629)Basis: This EAL addresses increases 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 EAL RU2.1 in that fuel activity has been released, or is anticipated due to fuel heatup. This EAL applies to spent fuel requiring water coverage and is not intended to address spent fuel which is licensed for dry storage.This EAL addresses radiation monitor indications of fuel uncovery and/or fuel damage.Hope Creek Page 1 of 4 Rev. (draft ED)EAL#: RA2.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-204 Increased ventilation monitor readings may be indication of a radioactivity release from the fuel, confirming that damage has occurred.
Increased background at the ventilation monitor due to water level decrease may mask increased ventilation exhaust airborne activity and needs to be considered.
While a radiation monitor could detect an 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 increase due to planned evolutions such as head lift, or even a fuel assembly being raised in the fuel grapple. 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, increased radiation monitor indications will need to combined with another indicator (or personnel report) of water loss.Escalation of this emergency classification level, if appropriate, would be based on EAL RS1.1 or EAL RG1.1.Explanation/Discussion/Definitions:
When the spent fuel pool and reactor cavity are connected, there could exist the possibility of uncovering irradiated fuel. Therefore, this EAL is applicable for conditions in which irradiated fuel is being transferred to and from the RPV and spent fuel pool.For a loss of shielding, the source of the radiation is within the reactor cavity or spent fuel pool.Without the shielding provided by normal water inventory, radiation levels from irradiated fuel and activation products will rise substantially.
Area radiation monitors that may alarm in response to damaged spent fuel or loss of spent fuel shielding are those located on the 201' elevation (refuel floor):* Spent Fuel Storage Pool Area (9RX707)* New Fuel Criticality A Rad (9RX612)" New Fuel Criticality B Rad (9RX613)The Refuel Floor Exhaust Duct Rad Monitors 9RX627, 9RX628 and 9RX629 are process monitors and are designed to detect a release of Fission Products to the Reactor Building atmosphere.
Hence, they are included as part of the EAL threshold, to confirm the magnitude of damage to an irradiated fuel bundle. These monitors can also react as Area Radiation Monitors, in the event of rising radiation levels due to lowered shielding, as would occur during a loss of spent fuel pool inventory event. It is important to distinguish between the cause for rising radiation levels when classifying an event under this EAL.Hope Creek Page 2 of 4 Rev. (draft ED)EAL#: RA2.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-204 Definitions:
VALID -An indication, report, or condition, is considered to be VALID when it is verified by (1) an instrument channel check, or (2) indications on related or redundant indicators, or (3) by direct observation by plant personnel, such that doubt related to the indicator's operability, the condition's existence, or the report's accuracy is removed.Implicit in this definition is the need for timely assessment.
EAL Basis Reference(s):
- 1. NEI 99-01 Rev. 5, AA2 Example EAL #2 2. UFSAR Table 12.3-9 Area Radiation Monitor Detector Locations 3. HC.OP-AR.ZZ-0013(Q)
Overhead Annunciator Window Box D1-A5 4. HC.OP-AB.COOL-004(Q)
Fuel Pool Cooling 5. HC.OP-AB.CONT-005(Q)
Irradiated Fuel Damage 6. HC.RP-AR.SP-0001(Q)
RMS Alarm Response 7. HC.OP-AR.ZZ-0019(Q)
Overhead Annunciator Window Box E6-A3 Hope Creek Page 3 of 4 Rev. (draft ED)EAL#: RA2.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-204 This page intentionally blank Hope Creek Page 4 of 4 Rev. (draft ED)EAL#: RA2.1 HCGS ECG -EAL Technical Bases EP-HC-111-204 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: R -Abnormal Rad Levels / Rad Effluent 2 -Onsite Rad Conditions/Fuel Pool Events Damage to irradiated fuel or loss of water level that has resulted or will result in the uncovering of irradiated fuel outside the RPV All RA2.2 -ALERT EAL: A water level drop in the reactor cavity or spent fuel pool that will result in irradiated fuel becoming uncovered Basis: This event represents a loss of control over radioactive material and represents an actual or substantial potential degradation in the level of safety of the plant.This event escalates from EAL RU2.1 in that fuel activity release is anticipated due to fuel heatup. This EAL applies to spent fuel requiring water coverage and is not intended to address spent fuel which is licensed for dry storage.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.Escalation of this emergency classification level, if appropriate, would be based on EAL RS1.1 or EAL RG1.1.Explanation/Discussion/Definitions:
None EAL'Basis Reference(s):
- 1. NEI 99-01 Rev. 5, AA2 Example EAL #1 Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: RA2.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-204 This page intentionally blank Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: RA2.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-205 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
R -Abnormal Rad Levels / Rad Effluent 3 -CR/CAS Rad Rise in radiation levels within the facility that impedes operation of systems required to maintain plant safety functions All EAL# & Classification Level: RA3.1 -ALERT EAL: Dose rates > 15 mR/hr in the Control Room (9RX710)Basis: This EAL addresses increased 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 increase in radiation levels is not a concern of this EAL.The Emergency Coordinator must consider the source or cause of the increased radiation levels and determine if any other EAL may be involved.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 II.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.The area requiring continuous occupancy at Hope Creek is the Control Room.Explanation/Discussion/Definitions:
The area that meets this threshold at Hope Creek is the Control Room. The Central Alarm Station (CAS) is not included in this EAL because it is located at Salem. Control Room ARM (9RX710) measures area radiation in a range of 1 -104 mR/hr.Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: RA3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-205 EAL Basis Reference(s):
- 1. NEI 99-01 Rev. 5, AA3 Example EAL #1 2. HCGS UFSAR Table 12.3-9 Area Radiation Monitor Detector Locations 3. HC.RP-AR.SP-0001(Q)
RMS Alarm Response Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: RA3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-206 EAL Category: E -ISFSI EAL Sub-category:
Initiating Condition:
OPCON Applicability:
Spent Fuel Transit & Storage Damage to a loaded cask CONFINEMENT BOUNDARY Mode NOT applicable EAL# & Classification Level: EUI.1 -UNUSUAL EVENT EAL: Damage to a Multi Purpose Canister (MPC) CONFINEMENT BOUNDARY as -indicated by op-contact radiation
'readings
> 600 mR/hr (gamma + neutron) on the surface; ofthe" spent fuel cask, excluding the air vents, OR > 60 mR/hr (gamma + neutron) on the top. of the spent fuel cask.Basis: An UNUSUAL EVENT in this EAL is categorized, on the basis of the occurrence bf anl,.event of sufficient magnitude that a loaded.MPC CONFINEMENT BOUNDARY..._;iS damaged or violated..This includes classification.
based on a loaded fuel storage-zask CONFINEMENT BOUNDARY loss leading to the degradation of the fuel duribng'.sto6rage or posing an operational safety problem with respect to its removal from storage., Explanation/Discussion/Definitions:
This EAL applies to emergency conditions affecting a spent fuel cask caused by anýaccident or natural phenomena.
This EAL would be applicable at all times in all Operational Conditions for a loaded spent fuel storage cask from the time the lid is installed, as the cask leaves the Hope Creek Reactor Building and during transport to and storage at the INDEPENDENT SPENT FUEL STORAGE INSTALLATION (ISFSI). This EAL provides for an Unusual Event classification, which may be entered if conditions occur that have the potential for damaging or degrading the CONFINEMENT BOUNDARY of a spent fuel cask. Damage to the storage cask could result in an increase in direct radiation readings from the cask. A similar Salem EAL is only applicable for a Salem spent fuel cask that is in transit to the ISFSI. After the spent fuel cask is in place at the ISFSI, any further conditions that could adversely impact the ISFSI or an individual cask from either Salem or Hope Creek would be assessed and classified as needed by the Hope Creek Shift Manager (SM) per this EAL.Hope Creek Page 1 of 2 Rev. 0 (draft E EAL#: EU1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-206 As provided in the Holtec HI-STORM 100 System Certificate of Compliance (CoC), Appendix A (Technical Specifications), Section 5.7.4 contains radiation values for the cask that should not be exceeded.
Under Amendment
- 5, the highest allowable radiation level on contact with the HI-STORM 100 cask body is 300 mR/hr on the side of the cask and 30 mR/hr on the top of the cask. Keeping in line with NEI guidance that a UE is warranted for radiation conditions at a level of twice the Technical Specification value, 600 mRlhr and 60 mRlhr are being used as the EAL threshold radiation levels.Continued use of this lower value is conservative for casks loaded under later CoC amendments where the radiation limit values may increase.
The threshold values are.sufficiently above nominal radiation levels of the CONFINEMENT BOUNDARY that radiation levels above this EAL threshold would indicate significant damage to the.CONFINEMENT BOUNDARY.No releases of radioactive material requiring offsite response or monitoring are expected'because the sIea-bailded spent fuel canister (part of the CONFINEMENT BOUNDARY) is designed-to remain intact under all normal, off-normal, and credible accident conditions of onsite transport and storage at the ISFSI, according to Holtec licensing documents.
Prior to the installation of the spent fuel cask lid on the HI-STORM 100 cask, emergency.-
classifications would be based on other Category R EALs.Definitions:
'INDEPENDENT SPENT FUEL STORAGE INSTALLATION (ISFSI): A complex that isdesigned and constructed for the interim storage of spent nuclear fuel:arid.,,.ther.radioactive materials associated with spent fuel:storage.
CONFINEMENT BOUNDARY:
Is the barrier(s) between areas containing radioactive substances and the environment and includes the multi-purpose canister (MPC) and, for the purposes of this EAL, the associated cask shielding.
EAL Basis Reference(s):
- 1. NEI 99-01 Rev. 5, E-HU1 Example EAL #1 2. HOLTEC HI-STORM 100 UFSAR, Chapter 5 and Chapter 11 3. Certificate of Compliance, Docket # 72-1014 4. Holtec International Final Safety Analysis Report for the HI-STORM 100 Cask System Holtec Report No.: HI-2002444
- 5. Certificate of Compliance No. 72-1014 Appendix A Technical Specifications for the HI-STORM 100 Cask System Section 1.1 Definitions Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: EU 1.1 EALs for: HAZARDS HCGS ECG -EAL Technical Bases EP-HC-1 11-207 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: EAL: H -Hazards & Other Conditions Affecting Plant Safety 1 -Natural & Destructive Phenomena Natural or destructive phenomena affecting the PROTECTED AREA All HUl.1 -UNUSUAL EVENT (Common Site)Seismic event identified by ANY two of the following:
- Earthquake felt in plant by Control Room Operators° SMA-3 Event Indicator (flag) white on Panel 10C673* National Earthquake Information Center (NEIC) (Note 4)Note 4: The NEIC can be contacted by calling (303) 273-8500.
Select option #1 and inform the analyst you wish to confirm recent seismic activity in the vicinity of Salem/Hope Creek Generating Station. Provide the analyst with the following coordinates:
390 27' 46" (39.4650) north latitude, 750 32' 08" (75.5370) west longitude.
Basis: This EAL is categorized on the basis of the occurrence of an event of sufficient magnitude to be of concern to plant operators.
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 Information Center can confirm if an earthquake has occurred in the area of the plant.Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: HUI.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 Explanation/Discussion/Definitions:
The HCGS seismic instrumentation consists of a Kinemetrics SMA-3 Strong Motion Accelerograph (Auxiliary Building Upper Relay Room) and associated sensors that are equipped with seismic triggers set to alarm and initiate recording at an acceleration equal to or exceeding 0.01 g. When the seismic trigger activates the SMA-3 Event Indicator (flag) will change from black to white and the amber event alarm will illuminate.
The amber event alarm will extinguish when ground acceleration reduces below the 0.01 g setpoint but the Event Indicator (flag) will remain white until manually reset. Three time-history triaxial acceleration sensors are provided.
These sensors transmit electrical signals to the Upper Relay Room where they are recorded on magnetic tape.The National Earthquake Information Center (NEIC) can confirm seismic activity in the vicinity of the SGS/HCGS site. Refer to Note 4 to contact the NEIC.Alternatively go to the USGS NEIC website: http://earthquake, usgs.gov/eqcenter/
On the US map, click on 'New Jersey' and then click on earthquake indicator for information.
The maps are updated within 5 min. of a measured earthquake.
Additional Earthquake information can be found on the internet at:* http://www.earthquake.usgs.gov
- http://www.mgs.md.gov (click on "Live Earthquake Data online")* http://earthquake.usgs.gov/regional/neic This event escalates to an ALERT under EAL HAl.1 if the earthquake exceeds Operating Basis Earthquake (OBE) levels (0.1g).An approximate relationship between acceleration units in gravity and magnitude reported per the Richter scale is as follows: An Acceleration of: 0.01g 0.02g 0.1g 0.2g is aDprox. eaual to a Richter Scale Maanitude of: 4.0 4.5 5.5 6.5 Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: HUI .1 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 Definitions:
PROTECTED AREA (PA): A security controlled area within the OWNER CONTROLLED AREA (OCA) that is enclosed by the security perimeter fence and monitored by intrusion detection systems. Access to the PA requires proper security clearance and is controlled at the Security Center.OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.EAL Bases Reference(s):
Seismic Instrumentation System Operation 3. HC.OP-AB.MISC-001(Q)
Acts of Nature 4. HC.OP-AR.ZZ-001 1(Q) Overhead Annunciator Window Box C6 5. UFSAR 2.1.1.1 Specification of Location 6. UFSAR 1.2.1.5 Seismology Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: HU 1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11 -207 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: HU 1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: H -Hazards & Other Conditions Affecting Plant Safety 1 -Natural & Destructive Phenomena Natural or destructive phenomena affecting the PROTECTED AREA All HUI.2 -UNUSUAL EVENT (Common Site)EAL: Basis: This EAL is categorized on the basis of the occurrence of an event of sufficient magnitude to be of concern to plant operators.
This EAL is based on a tornado touching down within the PROTECTED AREA or high winds onsite Escalation of this emergency classification level, if appropriate, would be based on VISIBLE DAMAGE, or by other in-plant conditions, via EAL HA1.2.Explanation/Discussion/Definitions:
Average, as used in the EAL threshold, is intended to be the 15 minute average as provided on SPDS and not the instantaneous wind speed.The design wind velocities are 108 mph (including a gust factor of approximately 1.3) at 30 feet above ground. However, the Control Room wind speed only provides indication up to 100 mph so the classification threshold has been capped at 95 mph to allow for onscale indication of wind speed. The SPDS display provides wind speed readings on a 15-minute average. The manner in which the HCGS SPDS processes data from the meteorological instrumentation differs from the SGS SPDS; consequently, minor differences between HCGS and SGS readings may occur.Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: HU1.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 A tornado touching down within the PROTECTED AREA warrants declaration of an UNUSUAL EVENT regardless of the measured wind speed at the meteorological tower. A tornado is defined as a violently rotating column of air in contact with the ground and extending from the base of a thunderstorm.
The National Weather Service can be contacted for further information about existing or projected Adverse Weather Conditions:
- Phila/Mount Holly (609) 261-6600* NWS Web site http://www.erh.noaa.gov/er/phi
- Phila/Mount Holly (609) 261-6604* Phila/Mount Holly (609) 261-6602 Definitions:
PROTECTED AREA (PA): A security controlled area within the OWNER CONTROLLED AREA (OCA) that is enclosed by the security perimeter fence and monitored by intrusion detection systems. Access to the PA requires proper security clearance and is controlled at the Security Center.OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.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, and paint blistering.
Surface blemishes (e.g., paint chipping, scratches) should not be included.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, HU1 Example EAL #2 2. UFSAR 3.3.1.1 Design wind Velocity 3. OP-AA-108-111-1001 Severe Weather and Natural Disaster Guidelines
- 4. NC.CH-SC-MET-1206(Q)
Meteorological Monitoring System Calibration and Maintenance
- 5. HC.OP-AB.MISC-0001 (Q) Acts of Nature Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: HUI .2 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: EAL: H -Hazards & Other Conditions Affecting Plant Safety 1 -Natural & Destructive Phenomena Natural or destructive phenomena affecting the PROTECTED AREA All HUl.3 -UNUSUAL EVENT Main Turbine rotating component failures resulting in EITHER of the following:
° Main Turbine casing penetration
° Main Turbine or Generator Seal Damage Basis: This EAL is categorized on the basis of the occurrence of an event of sufficient magnitude to be of concern to plant operators.
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 EAL HU2.1 and EAL HU3.1.This EAL is consistent with the definition of an UNUSUAL EVENT 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 EAL HA1.3 based on damage done by projectiles generated by the failure or by any radiological releases in category R.Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: HU 1.3 HCGS ECG -EAL Technical Bases EP-HC-1 11 -207 Explanation/Discussion/Definitions:
Main Turbine rotating component failures of sufficient magnitude to cause damage to the turbine casing or turbine/generator seals increases the potential for leakage of combustible/explosive gases and of combustible liquids to the Turbine Building or damage to plant systems due to PROJECTILES.
The presence of H 2 gas in sufficient quantities may present a combustion hazard. Actual fires and flammable gas build up is classified under fire and flammable gas EALs.Generator seal damage observed after generator purge does not meet the intent of this EAL since it did not impact normal plant operations.
Turbine rotating component failures may also result in other direct damage to plant systems and components.
Damage may rupture the turbine lubricating oil system, which would release flammable liquids to the Turbine Building.
Potential rupture of the condenser and condenser tubes may cause flooding in the lower levels of the Turbine Building.
This damage should be readily observable.
Escape of H 2 gas from the generator due to a loss of seal oil pumps or turbine lube oil without a turbine rotating component failure should not be classified under this event but should be reviewed lAW EALs in Subcategory H.3, Hazardous Gas.Definitions:
PROTECTED AREA (PA): A security controlled area within the OWNER CONTROLLED AREA (OCA) that is enclosed by the security perimeter fence and monitored by intrusion detection systems. Access to the PA requires proper security clearance and is controlled at the Security Center.OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.PROJECTILE:
An object that impacts Salem and/or Hope Creek that could cause concern for continued operability, reliability or personnel safety.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, HU1 Example EAL #4 2. UFSAR 3.5.1.3 Turbine Missiles 3. HC.OP-AB.BOP-0002 (Q) Main Turbine Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: HU1.3 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 EAL Category: EAL Subcategory:
Initiating Condition:
H -Hazards & Other Conditions Affecting Plant Safety 1 -Natural & Destructive Phenomena Natural or destructive phenomena affecting the PROTECTED AREA OPCON Applicability:
EAL# & Classification Level: EAL: All HU1.4- UNUSUAL EVENT Visual Observation of Flooding in ANY Table H-1 structures that confirms ANY of the following:
- Reactor Building Floor Levels above the Maximum Normal Floor Level (> 1 in.)referenced in EOP 103 / 104, Reactor Building and Radioactive Release Control* Receipt of SSWS Pump Room Flooded Alarm A1-B2 (PUMP ROOM FLOODED)* Greater than 2 in. of water in ANY other area that contains a Safety System(s)AND The Safety Related Equipment is required by Technical Specifications for the present operational condition (OPCON)Table H-1 Plant Structures Containing Safe Shutdown Systems or Components
- Reactor Building o Control/Auxiliary Building* Service Water Intake Structure* Service/Radwaste Building Basis: This EAL is categorized on the basis of the occurrence of an event of sufficient magnitude to be of concern to plant operators.
Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: HU 1.4 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 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 based DEGRADED PERFORMANCE via EAL HA1.4, or by other plant conditions.
Explanation/Discussion/Definitions:
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.Flooding in the structures listed in Table H-1 represents the potential to directly impact continued safe operation of the plant. This EAL specifically addresses those areas of the plant where flooding presents a challenge to Safety System(s).
Visual Observation of the flooding should occur prior to classification to validate any alarm conditions.
Flooding is an event or condition in excess of the available sump pump handling capability (installed or temporary) that has the potential to affect a safety system(s) required for the present operational condition (OPCON) and is not the result of a controlled/preplanned evolution.
Events classified under this EAL, for example, include the effects of flooding from system malfunctions, component failures, or repair activity failures (such as a failed freeze seal).Those events that result in the flooding of an area as the direct result of a planned evolution, such as system draining in preparation for an equipment outage, do not warrant event classification, unless the draining cannot be successfully terminated.
Safety System is any system or component included in the Technical Specification.
For the purpose of implementing this EAL, levels in the Reactor Building that would require classification under this EAL are defined as the Maximum Normal Floor Level in the EOPs.Exceeding this level in any of the Reactor Building areas would require running all available sump pumps. If level in these areas cannot be lowered to below the 1 in. level, systems discharging into this area are to be isolated, except for systems required to:* Ensure adequate core cooling* Shutdown the reactor* Protect primary containment integrity* Suppress a fire SSWS Pump Room Flooded Alarm Overhead Annunciator A1-B2 (PUMP ROOM FLOODED)is fed from the following CRID points: D5518, D5519, D5533 and D5534. The setpoint for the SSWS Pump Room Flooded Alarm is 1" for either A/C SSW pump room or B/D SSW pump Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: HU 1.4 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 room. Possible causes for flooding in these areas are an Service Water System leak (strainer, pump, valve, pipe), Fire Protection System leak, or Sump Pump malfunction.
Definitions:
PROTECTED AREA (PA): A security controlled area within the OWNER CONTROLLED AREA (OCA) that is enclosed by the security perimeter fence and monitored by intrusion detection systems. Access to the PA requires proper security clearance and is controlled at the Security Center.OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.DEGRADED PERFORMANCE:
Assessment of degraded safe shutdown system performance includes examination of systems in standby status as well as those in operation.
When a safe shutdown system is in operation, its performance can be directly observed and compared to its design capability (e.g., rated flow is required but cannot be achieved).
When an operating safe shutdown system cannot fulfill its design function, its performance is degraded.
When a safe shutdown system is in standby, its performance capability may not be readily determined.
One or more of the following can provide indirect indication of its performance capability:
- Electrical faults on power supplies* Normally closed breakers in tripped position* System annunciators activated* System warning lights lit* Insufficient system pressure from keep-fill pumps* Elevated area temperatures or radiation levels* Increased sump pump operation in areas in which the system is located EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, HU1 Example EAL #3 2. HC.OP-EO.ZZ-0103/4 (Q)-FC Reactor Building and Radioactive Release Control 3. HC.OP-AR.ZZ-0001(Q)
Overhead Annunciator Window Box Al Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: HUI.4 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: HU 1.4 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: EAL: H -Hazards & Other Conditions Affecting Plant Safety 1 -Natural & Destructive Phenomena Natural or destructive phenomena affecting the PROTECTED AREA All HU1.5 -UNUSUAL EVENT (Common Site)River level > 99.5'OR River level < 80.0'Basis: See Explanation Section below: Explanation/Discussion/Definitions:
The first condition of this EAL indicates river level conditions that can threaten the level of safety of the plant due to flooding.
River level > 99.5' (+10.5' Mean Steam Line, MSL) is indication of impending site flood conditions.
Flood protection measures are required by Hope Creek Technical Specifications and procedure at 95.0' (+6.0' MSL). At this river level precautionary actions are taken, including filling outside tanks and ensuring that perimeter flood doors are closed. These actions ensure that the facility flood protection features are in place prior to a river level which would necessitate their use.The high river level threshold is at the river level that would require a plant shutdown.
Hope Creek Technical Specification actions required by a river level of > 99.5' includes placing the plant in at least Hot Shutdown within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in Cold Shutdown within the next 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.The grade level at the Salem station is lower than that for Hope Creek (Salem = 99.5', Hope Creek = 101.5').The second condition of this EAL indicates river level conditions, River level < 80.0'(-9.0'MSL), approaching the loss of the Service Water Intake (Ultimate Heat Sink). This level is Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: HUI.5 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 one foot lower than the historical low water level of 81.0' (-8.0'MSL) (December 31, 1962) and is higher than the Service Water pumps design level.These events will be escalated based on damage to plant safety systems, loss of fission product barriers or abnormal radiological releases as discussed in other EAL categories.
River level indication is displayed on LR-2220-1(2) which has a range of 72' to 102'.The National Weather Service can be contacted for further information about existing or projected Adverse Weather Conditions:
- Phila/Mount Holly (609) 261-6600* NWS Web site http://www.erh.noaa.gov/er/phi" Phila/Mount Holly (609) 261-6604* Phila/Mount Holly (609) 261-6602 Definitions:
PROTECTED AREA (PA): A security controlled area within the OWNER CONTROLLED AREA (OCA) that is enclosed by the security perimeter fence and monitored by intrusion detection systems. Access to the PA requires proper security clearance and is controlled at the Security Center.OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, HU1 Example EAL #5 2. HC.OP-AB.MISC-0001 (Q) Acts of Nature 3. Technical Specification Section 3/4.7.3 4. Technical Specification Section 3/4.7.1.3 5. UFSAR 2.4 Hydraulic Engineering
- 6. UFSAR Figure 2.4-3 Datum and Water Level Relationships
- 7. OP.SH-1 08-111-1001 Severe Weather and National Disaster Guidelines Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: HUI.5 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
H -Hazards & Other Conditions Affecting Plant Safety 1 -Natural & Destructive Phenomena Natural or destructive phenomena affecting VITAL AREAS All EAL# & Classification Level: HAl.1 -ALERT EAL: Actuation of the OBE Seismic Switch (> 0.1 g) as indicated by EITHER: " Annunciator C6-C4 (SEISMIC MON PNL C673) activated" Amber alarm light on the Seismic Switch Power Supply Drawer Panel 10C673 AND Earthquake confirmed by ANY of the following:
- Earthquake felt in plant by Control Room Operators" National Earthquake Information Center (NEIC) (Note 4)* Control Room indication of DEGRADED PERFORMANCE of safe shutdown systems Note 4: The NEIC can be contacted by calling (303) 273-8500.
Select option #1 and inform the analyst you wish to confirm recent seismic activity in the vicinity of Salem/Hope Creek Generating Station. Provide the analyst with the following coordinates:
390 27' 46" (39.4650) north latitude, 750 32' 08" (75,5370) west longitude.
Basis: This EAL escalates from HUI.1 in that the occurrence of the event may have resulted in damage to plant structures or areas containing equipment necessary for a safe shutdown, or may have caused damage to the safety systems in those structures evidenced by Control Room indications of degraded system response or performance.
The occurrence of 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.Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: HA1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 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 EALs.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 Information Center can confirm if an earthquake has occurred in the area of the plant.Explanation/Discussion/Definitions:
Ground motion acceleration of 0.1g is the Operating Basis Earthquake (OBE) for HCGS.HCGS seismic instrumentation consists of a Kinemetrics SMA-3 Strong Motion Accelerograph (Auxiliary Building Upper Relay Room) and associated sensors that are equipped with seismic triggers set to alarm and initiate recording at an acceleration equal to or exceeding 0.01 g.When the seismic trigger activates the SMA-3 Event Indicator (flag) will change from black to white and the amber event alarm will illuminate.
The amber event alarm will extinguish when ground acceleration reduces below the 0.01 g setpoint but the Event Indicator (flag) will remain white until manually reset.The amber Seismic Switch Event Alarm on the Seismic Switch Power Supply (SP-1) will illuminate at an acceleration equal to or exceeding 0.1 g (OBE). This also annunciates the seismic activity alarm C6-C4 (SEISMIC MON PNL C673). Three time-history triaxial acceleration sensors are provided.
These sensors transmit electrical signals to the Upper Relay room where they are recorded on magnetic tape. These tapes are analyzed to determine the exact magnitude of the seismic event and to confirm whether the OBE has been exceeded.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 Information Center (NEIC) can confirm seismic activity in the vicinity of the SGS/HCGS site. Refer to Note 4 to contact the NEIC.Alternatively go to the USGS NEIC website: http ://earthquake.usgs.gov/eqcenter/
Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: HA1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 On the US map, click on 'New Jersey' and then click on earthquake indicator for information.
The maps are updated within 5 min. of a measured earthquake.
Additional Earthquake information can be found on the internet at:* http://www.earthquake.usgs.gov
- http://www.mgs.md.gov (click on "Live Earthquake Data online")* http://earthquake.usgs.gov/regional/neic An approximate relationship between acceleration units in gravity and magnitude reported per the Richter scale is as follows: An Acceleration of: is approx. equal to a Richter Scale Magnitude of: 0.01g 4.0 0.02g 4.5 0.1g 5.5 0.2g 6.5 Definitions:
VITAL AREA: Typically any site specific areas, normally within the PROTECTED AREA, that contains equipment, systems, components, or material, the failure, destruction, or release of which could directly or indirectly endanger the public health and safety by exposure to radiation.
DEGRADED PERFORMANCE:
Assessment of degraded safe shutdown system performance includes examination of systems in standby status as well as those in operation.
When a safe shutdown system is in operation, its performance can be directly observed and compared to its design capability (e.g., rated flow is required but cannot be achieved).
When an operating safe shutdown system cannot fulfill its design function, its performance is degraded.
When a safe shutdown system is in standby, its performance capability may not be readily determined.
One or more of the following can provide indirect indication of its performance capability:
- Electrical faults on power supplies* Normally closed breakers in tripped position* System annunciators activated* System warning lights lit Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: HA1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-207" Insufficient system pressure from keep-fill pumps" Elevated area temperatures or radiation levels* Increased sump pump operation in areas in which the system is located PROTECTED AREA (PA): A security controlled area within the OWNER CONTROLLED AREA (OCA) that is enclosed by the security perimeter fence and monitored by intrusion detection systems. Access to the PA requires proper security clearance and is controlled at the Security Center.OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.EAL Bases Reference(s):
Seismic Instrumentation System Operation 3. HC.OP-AB.MISC-001(Q)
Acts of Nature 4. HC.OP-AR.ZZ-001 1(Q) Overhead Annunciator Window Box C6 5. UFSAR 2.1.1.1 Specification of Location 6. UFSAR 1.2.1.5 Seismology Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: HA1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: EAL: H -Hazards & Other Conditions Affecting Plant Safety 1 -Natural & Destructive Phenomena Natural or destructive phenomena affecting VITAL AREAS All HA1.2 -ALERT Tornado TOUCHING DOWN within the PROTECTED AREA OR Average Wind Speeds > 95 MPH from ANY elevation of the Met Tower AND Resulting in EITHER of the following:
- Control Room indication of DEGRADED PERFORMANCE of a Safety System* VISIBLE DAMAGE to ANY of the plant structures in Table H-1 Table H-1 Plant Structures Containing Safe Shutdown Systems or Components
- Reactor Building* Control/Auxiliary Building* Service Water Intake Structure* Service/Radwaste Building Basis: This EAL escalates from EAL HU1.2 in that the occurrence of the event has resulted in I 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 Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: HA1.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 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 EALs.This EAL is based on a tornado touching down or high winds that have caused VISIBLE DAMAGE to structures containing functions or systems required for safe shutdown of the plant.Explanation/Discussion/Definitions:
Average, as used in the EAL threshold, is intended to be the 15 minute average as provided on SPDS and not the instantaneous wind speed.The design wind velocities are 108 mph (including a gust factor of approximately 1.3) at 30 feet above ground for Seismic Category I structures.
However, the Control Room wind speed only provides a display up to 100 mph so the classification threshold has been capped at 95 mph to allow for onscale indication of wind speed. The SPDS display provides wind speed readings on a 15-minute average. The manner in which the HCGS SPDS processes data from the meteorological instrumentation differs from the SGS SPDS; consequently, minor differences between HCGS and SGS readings may occur.The ALERT classification is appropriate if relevant plant parameters indicate that the performance of safety systems has been degraded.
No attempt should be made to fully inventory the actual magnitude of the damage or quantify the degradation of safety system performance prior to declaration of an ALERT under this threshold.
The declaration of an ALERT and the activation of the TSC provide the Emergency Coordinator with the resources needed to perform detailed damage assessments.
The National Weather Service can be contacted for further information about existing or projected Adverse Weather Conditions:
- Phila/Mount Holly (609) 261-6600" NWS Web site http://www.erh.noaa.qov/er/phi" Phila/Mount Holly (609) 261-6604" Phila/Mount Holly (609) 261-6602 Definitions:
Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: HA1.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 VITAL AREA: Typically any site specific areas, normally within the PROTECTED AREA, that contains equipment, systems, components, or material, the failure, destruction, or release of which could directly or indirectly endanger the public health and safety by exposure to radiation.
DEGRADED PERFORMANCE:
Assessment of degraded safe shutdown system performance includes examination of systems in standby status as well as those in operation.
When a safe shutdown system is in operation, its performance can be directly observed and compared to its design capability (e.g., rated flow is required but cannot be achieved).
When an operating safe shutdown system cannot fulfill its design function, its performance is degraded.
When a safe shutdown system is in standby, its performance capability may not be readily determined.
One or more of the following can provide indirect indication of its performance capability:
- Electrical faults on power supplies* Normally closed breakers in tripped position* System annunciators activated* System warning lights lit* Insufficient system pressure from keep-fill pumps* Elevated area temperatures or radiation levels* Increased sump pump operation in areas in which the system is located PROTECTED AREA (PA): A security controlled area within the OWNER CONTROLLED AREA (OCA) that is enclosed by the security perimeter fence and monitored by intrusion detection systems. Access to the PA requires proper security clearance and is controlled at the Security Center.OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.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, and paint blistering.
Surface blemishes (e.g., paint chipping, scratches) should not be included.Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: HA1.2 HCGS ECG -EAL Technical Bases EP-HC-111-207 EAL Bases Reference(s):
1.2.3.4.5.6.NEI 99-01, Rev. 05, HA1 Example EAL #2 UFSAR 3.3.1.1 Design Wind Velocity UFSAR Table 3.2-1 HCGS Classification of Structures, Systems and Components OP-AA-1 08-111-1001 Severe Weather and Natural Disaster Guidelines NC.CH-SC-MET-1206(Q)
Meteorological Monitoring System Calibration and Maintenance HC.OP-AB.MISC-0001 (Q) Acts of Nature Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: HA1.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
H -Hazards & Other Conditions Affecting Plant Safety 1 -Natural & Destructive Phenomena Natural or destructive phenomena affecting VITAL AREAS All EAL# & Classification Level: HA1.3 -ALERT EAL: Turbine failure-generated PROJECTILES resulting in EITHER of the following:
- VISIBLE DAMAGE to ANY Table H-1 plant structures
- Control Room indication of DEGRADED PERFORMANCE of safe shutdown systems Table H-1 Plant Structures Containing Safe Shutdown Systems or Components
- Reactor Building" Control/Auxiliary Building* Service Water Intake Structure* Service/Radwaste Building Basis: This EAL escalates from EAL HU1.3 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.
Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: HA1.3 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 Escalation of this emergency classification level, if appropriate, would be based on System Malfunction EALs.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.Explanation/Discussion/Definitions:
Definitions:
VITAL AREA: Typically any site specific areas, normally within the PROTECTED AREA, that contains equipment, systems, components, or material, the failure, destruction, or release of which could directly or indirectly endanger the public health and safety by exposure to radiation.
DEGRADED PERFORMANCE:
Assessment of degraded safe shutdown system performance includes examination of systems in standby status as well as those in operation.
When a safe shutdown system is in operation, its performance can be directly observed and compared to its design capability (e.g., rated flow is required but cannot be achieved).
When an operating safe shutdown system cannot fulfill its design function, its performance is degraded.
When a safe shutdown system is in standby, its performance capability may not be readily determined.
One or more of the following can provide indirect indication of its performance capability:
- Electrical faults on power supplies* Normally closed breakers in tripped position* System annunciators activated* System warning lights lit* Insufficient system pressure from keep-fill pumps* Elevated area temperatures or radiation levels* Increased sump pump operation in areas in which the system is located PROTECTED AREA (PA): A security controlled area within the OWNER CONTROLLED AREA (OCA) that is enclosed by the security perimeter fence and monitored by intrusion detection systems. Access to the PA requires proper security clearance and is controlled at the Security Center.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: HA1.3 HCGS ECG -EAL Technical Bases EP-HC-111-207 OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.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, and paint blistering.
Surface blemishes (e.g., paint chipping, scratches) should not be included.PROJECTILE:
An object that impacts Salem and/or Hope Creek that could cause concern for continued operability, reliability or personnel safety.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, HA1 Example EAL #4 2. UFSAR 3.5.1.3 Turbine Missiles 3. UFSAR Table 3.2-1 HCGS Classification of Structures, Systems and Components
- 4. HC.OP-AB.BOP-0002 (Q) Main Turbine Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: HA1.3 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: HA1.3 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: EAL: H -Hazards & Other Conditions Affecting Plant Safety 1 -Natural & Destructive Phenomena Natural or destructive phenomena affecting VITAL AREAS All HA1.4 -ALERT Visual Observation of Flooding in ANY Table H-1 structures that confirms ANY of the following:
- Reactor Building Floor Levels above the Maximum Normal Floor Level (> 1 in.)referenced in EOP 103 / 104, Reactor Building and Radioactive Release Control o Receipt of SSWS Pump Room Flooded Alarm A1-B2 (PUMP ROOM FLOODED)* Greater than 2 in. of water in ANY other area that contains a Safety System(s)AND The Flooding is of a magnitude that results in EITHER of the following:
- Indication of DEGRADED PERFORMANCE of a Safety System within a Table H-1 Structure.
- An Industrial Safety Hazard (Electrical Shock, High Temp, etc.) resulting in access restrictions to operate or monitor Safety System equipment.
Table H-1 Plant Structures Containing Safe Shutdown Systems or Components
- Reactor Building* Control/Auxiliary Building* Service Water Intake Structure* Service/Radwaste Building Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: HA1.4 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 Basis: This EAL escalates from EAL HU1.4 in that the occurrence of the event has resulted in an electrical shock hazard precluding access to plant structures containing safe shutdown systems or components or damage to the safety systems or components in those structures as evidenced by Control Room indications of degraded system response or performance.
The lack of access or occurrence of degraded system response is intended to discriminate against lesser events. The initial report should not be interpreted as mandating a lengthy assessment prior to classification.
No attempt is made in this EAL to assess the actual magnitude of any 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 lack of access or performance degradation.
Escalation of this emergency classification level, if appropriate, would be based on System Malfunction EALs.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.Explanation/Discussion/Definitions:
Flooding is an event or condition in excess of the available sump pump handling capability (installed or temporary) that results in a condition where water is entering a room faster than it is being removed resulting in a rise in water level within the room. Classification should not be delayed while taking corrective actions to isolate the source of the flooding.
This EAL addresses the effects of Flooding caused by events such as component failures, equipment misalignment, or outage activity mishaps where Flooding is occurring in areas that affect safety related equipment.
This EAL is based on the degraded performance of systems, or has created industrial safety hazards (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 meeting the definition of an ALERT.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: HA1.4 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 In those cases where it is believed that DEGRADED PERFORMANCE due to flooding may have caused damage to a Safety System, an ALERT declaration is warranted since the full extent of the damage need not be known. A Safety System is defined as any system required to maintain safe operation or to establish or maintain Cold Shutdown.SSWS Pump Room Flooded Alarm Overhead Annunciator A1-B2 (PUMP ROOM FLOODED)is fed from the following CRID points: D5518, D5519, D5533 and D5534. The setpoint for the SSWS Pump Room Flooded Alarm is 1" for either A/C SSW pump room or B/D SSW pump room. Possible causes for flooding in these areas are an Service Water System leak (strainer, pump, valve, pipe), Fire Protection System leak, or Sump Pump malfunction.
Definitions:
VITAL AREA: Typically any site specific areas, normally within the PROTECTED AREA, that contains equipment, systems, components, or material, the failure, destruction, or release of which could directly or indirectly endanger the public health and safety by exposure to radiation.
DEGRADED PERFORMANCE:
Assessment of degraded safe shutdown system performance includes examination of systems in standby status as well as those in operation.
When a safe shutdown system is in operation, its performance can be directly observed and compared to its design capability (e.g., rated flow is required but cannot be achieved).
When an operating safe shutdown system cannot fulfill its design function, its performance is degraded.
When a safe shutdown system is in standby, its performance capability may not be readily determined.
One or more of the following can provide indirect indication of its performance capability:
- Electrical faults on power supplies" Normally closed breakers in tripped position* System annunciators activated* System warning lights lit* Insufficient system pressure from keep-fill pumps* Elevated area temperatures or radiation levels* Increased sump pump operation in areas in which the system is located PROTECTED AREA (PA): A security controlled area within the OWNER CONTROLLED AREA (OCA) that is enclosed by the security perimeter fence and monitored by intrusion detection systems. Access to the PA requires proper security clearance and is controlled at the Security Center.Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: HA1.4 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, HA1 Example EAL #3 2. HC.OP-EO.ZZ-0103/4 (Q)-FC Reactor Building and Radioactive Release Control 3. HC.OP-AR.ZZ-0001(Q)
Overhead Annunciator Window Box Al Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: HA1.4 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: EAL: H -Hazards & Other Conditions Affecting Plant Safety 1 -Natural & Destructive Phenomena Natural or destructive phenomena affecting VITAL AREAS All HA1.6 -ALERT Vehicle Crash or PROJECTILE Impact with or within ANY Table H-1 Structure AND The Vehicle Crash or PROJECTILE Impact results in EITHER of the following:
- Control Room indication of DEGRADED PERFORMANCE of a Safety System within Table H-1 Structure* VISIBLE DAMAGE to ANY of the plant structures in Table H-1 Table H-1 Plant Structures Containing Safe Shutdown Systems or Components
- Reactor Building* Control/Auxiliary Building* Service Water Intake Structure* Service/Radwaste Building Basis: 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 incurred damage, but rather that the event was of sufficient magnitude to cause Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: HA1.6 HCGS ECG -EAL Technical Bases EP-HC-111-207 either VISIBLE DAMAGE to the safety systems in Table H-1 structures or Control Room indications of degraded system performance.
Escalation of this emergency classification level, if appropriate, would be based on EALs in Category S, System Malfunctions.
This EAL addresses vehicle crashes or PROJECTILE impacts 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.Explanation/Discussion/Definitions:
The primary concern in this EAL is the magnitude of the vehicle crashes/ PROJECTILE impacts. A detailed assessment of system damage is not required prior to classification.
Vehicle Crash includes AIRCRAFT, Helicopters, Ships, Barges, Trucks, Autos, or any other vehicle types of sufficient momentum to potentially damage the structure.
Minor contacts (not crashes) by onsite vehicles such as trucks, autos, forklifts, etc., are excluded from classification under this EAL. PROJECTILE impact includes flying objects from either offsite or onsite, rotating equipment or turbine failure causing turbine-casing penetration.
A Safety System is any system required to maintain safe operation or to establish or maintain cold shutdown.
In those cases where it is believed that the vehicle crash/ PROJECTILE impact may have caused VISIBLE DAMAGE to a Safety System, an ALERT declaration is warranted since the full extent of the damage may not be known. The turbine building is not a safety structure and would not be considered for this EAL.No lengthy or time-consuming assessment of damage is required prior to classification.
In this EAL, no attempt is made to quantify the magnitude of the damage to any safety system but instead an attempt is made to identify any damage in order to quantify the magnitude and extent of the vehicle crashes/PROJECTILE impact.In short, if the vehicle crash/ PROJECTILE impact is big enough that it has damaged a Safety System/Safety Structure or cause Safety System DEGRADED PERFORMANCE, then the vehicle crash/ PROJECTILE impact is big enough to justify an ALERT declaration.
Any security aspects or suspected HOSTILE ACTIONS that involve vehicles or PROJECTILE impact should be considered under EALs in Subcategory H.4.This event will be escalated based on further damage to plant safety systems, fission product barriers, or abnormal radiation releases.
The Emergency Coordinator may use discretion and escalate the classification to a SITE AREA EMERGENCY based on the nature of the damage.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: HA1.6 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 Definitions:
VITAL AREA: Typically any site specific areas, normally within the PROTECTED AREA, that contains equipment, systems, components, or material, the failure, destruction, or release of which could directly or indirectly endanger the public health and safety by exposure to radiation.
PROJECTILE:
An object that impacts Salem and/or Hope Creek that could cause concern for continued operability, reliability, or personnel safety.DEGRADED PERFORMANCE:
Assessment of degraded safe shutdown system performance includes examination of systems in standby status as well as those in operation.
When a safe shutdown system is in operation, its performance can be directly observed and compared to its design capability (e.g., rated flow is required but cannot be achieved).
When an operating safe shutdown system cannot fulfill its design function, its performance is degraded.
When a safe shutdown system is in standby, its performance capability may not be readily determined.
One or more of the following can provide indirect indication of its performance capability:
- Electrical faults on power supplies* Normally closed breakers in tripped position* System annunciators activated* System warning lights lit* Insufficient system pressure from keep-fill pumps* Elevated area temperatures or radiation levels" Increased sump pump operation in areas in which the system is located PROTECTED AREA (PA): A security controlled area within the OWNER CONTROLLED AREA (OCA) that is enclosed by the security perimeter fence and monitored by intrusion detection systems. Access to the PA requires proper security clearance and is controlled at the Security Center.OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: HA1.6 HCGS ECG -EAL Technical Bases EP-HC-1 11-207 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, and paint blistering.
Surface blemishes (e.g., paint chipping, scratches) should not be included.AIRCRAFT:
Includes both small and large AIRCRAFT.
Examples of AIRCRAFT include general aviation Cessna, Piper and Lear type private planes, large passenger or freight planes as well as police, medical and media helicopters.
HOSTILE ACTION: An act toward Salem or Hope Creek or its personnel that includes the use of violent force to destroy equipment, take HOSTAGES, and/or intimidate PSEG 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 Salem or Hope Creek. Non-terrorism-based EALs should be used to address such activities (i.e., this may include violent acts between individuals in the OCA).HOSTAGE: A person(s) held as leverage against the station to ensure that demands will be met by the station.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, HA1 Example EAL #5 2. UFSAR Table 3.2-1 HCGS Classification of Structures, Systems and Components
- 3. HC.OP-AB.BOP-0002 (Q) Main Turbine Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: HA1.6 HCGS ECG -EAL Technical Bases EP-HC-1 11-208 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: EAL: H -Hazards & Other Conditions Affecting Plant Safety 2 -Fire or Explosion FIRE within the PROTECTED AREA not extinguished within 15 minutes of detection or EXPLOSION within the PROTECTED AREA All HU2.1 -UNUSUAL EVENT FIRE NOT extinguished within 15 minutes of EITHER of the following:
- Control Room notification/report of a FIRE* Verified FIRE detection system alarm/actuation AND FIRE is located in the Turbine Building or ANY Table H-1 plant structure (Note 3)Note 3: The Emergency Coordinator 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.Table H-1 Plant Structures Containing Safe Shutdown Systems or Components
- Reactor Building* Control/Auxiliary Building* Service Water Intake Structure* Service/Radwaste Building Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: HU2.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-208 Basis: This EAL addresses the magnitude and extent of FIRES that may be potentially significant precursors of damage to safety systems. It addresses the FIRE, and not the degradation in performance of affected systems that may result.The 15 minute time period begins with a credible notification/report that a FIRE is occurring, or upon verification that a FIRE detection system alarm/actuation is due to a FIRE.a. A credible notification/report to the Control room would be a communications from a member of the plant staff (in-house or contractor) that identifies the observation of a FIRE in a specific location.NOTE: In this case, the 15 minute clock to assess the EAL and to extinguish the FIRE runs concurrently and starts upon Control Room receipt of the FIRE notification/report.
- b. Verification that a FIRE detection system alarm/actuation is due to a FIRE (not a spurious/false alarm) includes either one of the following:
- 1. Control Room (or other nearby site-specific location) receipt of related independent alarm(s) (FIRE, temperature, deluge, FIRE pump start, etc.)NOTE: In this case, the 15 minute clock to assess the EAL and to extinguish the FIRE runs concurrently and starts upon receipt of the independent alarm(s) related to the FIRE.2. On/Near-scene visual confirmation if only a single FIRE/smoke detector has alarmed.NOTE: In this case, the 15 minute clock to assess the EAL and to extinguish the FIRE runs concurrently and starts upon an on/near-scene confirmation of a FIRE related to the single FIRE/smoke detector that had alarmed.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 Turbine Building and Table H-1 list is 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 EAL 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 Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: HU2.1 HCGS ECG -EAL Technical Bases EP-HC-111-208 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.Escalation of this emergency classification level, if appropriate, would be based on EAL HA2.1.Explanation/Discussion/Definitions:
The Table H-1 Plant Structures Containing Safe Shutdown Systems or Components include those plant structures identified as Seismic Category I.Definitions:
PROTECTED AREA (PA): A security controlled area within the OWNER CONTROLLED AREA (OCA) that is enclosed by the security perimeter fence and monitored by intrusion detection systems. Access to the PA requires proper security clearance and is controlled at the Security Center.OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.VITAL AREA: Typically any site specific areas, normally within the PROTECTED AREA, that contains equipment, systems, components, or material, the failure, destruction, or release of which could directly or indirectly endanger the public health and safety by exposure to radiation.
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.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.
EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, HU2 Example EAL #1 2. UFSAR Table 3.2-1 HCGS Classification of Structures, Systems and Components Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: HU2.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-208 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: HU2.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-208 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: H -Hazards & Other Conditions Affecting Plant Safety 2 -Fire or Explosion FIRE within the PROTECTED AREA not extinguished within 15 minutes of detection or EXPLOSION within the PROTECTED AREA All HU2.2 -UNUSUAL EVENT EAL: EXPLOSION within the PROTECTED AREA Basis: This EAL addresses the magnitude and extent of EXPLOSIONS that may be potentially significant precursors of damage to safety systems. It addresses the EXPLOSION, and not the degradation in performance of affected systems that may result.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 Emergency Coordinator also needs to consider any security aspects of the EXPLOSION, if applicable.
Escalation of this emergency classification level, if appropriate, would be based on EAL HA2.2.Explanation/Discussion/Definitions:
If the EXPLOSION is determined to be hostile in nature, the event is classified under EAL HS4.1.Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: HU2.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-208 Definitions:
PROTECTED AREA (PA): A security controlled area within the OWNER CONTROLLED AREA (OCA) that is enclosed by the security perimeter fence and monitored by intrusion detection systems. Access to the PA requires proper security clearance and is controlled at the Security Center.OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.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.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.
EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, HU2 Example EAL #2 Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: HU2.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-208 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
H -Hazards & Other Conditions Affecting Plant Safety 2 -Fire or Explosion FIRE or EXPLOSION in a VITAL AREA affecting the operability of plant safety systems required to establish or maintain safe shutdown All EAL# & Classification Level: HA2.M -ALERT EAL: FIRE in ANY Table H-1 plant structure affecting the operability of plant safety systems required to establish or maintain safe shutdown AND> 15 minutes have elapsed (Note 3)Note 3: The Emergency Coordinator 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.Table H-1 Plant Structures Containing Safe Shutdown Systems or Components
- Reactor Building* Control/Auxiliary Building* Service Water Intake Structure Service/Radwaste Building Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: HA2.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-208 Basis: The significance here is that the FIRE was large enough to cause damage to these systems.The declaration of an ALERT and the activation of the Technical Support Center will provide the Emergency Coordinator with the resources needed to perform detailed damage assessments.
Escalation of this emergency classification level, if appropriate, will be based on EALs in Category S, System Malfunctions, Category F, Fission Product Barrier Degradation, or Category R, Abnormal Rad Levels / Rad Effluent.Explanation/Discussion/Definitions:
The Table H-1 Plant Structures Containing Safe Shutdown Systems or Components include those plant structures identified as Seismic Category I.Definitions:
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.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.
VITAL AREAS: Typically any site specific areas, normally within the PROTECTED AREA, that contains equipment, systems, components, or material, the failure, destruction, or release of which could directly or indirectly endanger the public health and safety by exposure to radiation.
PROTECTED AREA (PA): A security controlled area within the OWNER CONTROLLED AREA (OCA) that is enclosed by the security perimeter fence and monitored by intrusion detection systems. Access to the PA requires proper security clearance and is controlled at the Security Center.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: HA2.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-208 OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, HA2 Example EAL #1 2. UFSAR Table 3.2-1 HCGS Classification of Structures, Systems and Components Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: HA2.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-208 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: HA2.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-208 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: H -Hazards & Other Conditions Affecting Plant Safety 2 -Fire or Explosion FIRE or EXPLOSION in a VITAL AREA affecting the operability of plant safety systems required to establish or maintain safe shutdown All HA2.2 -ALERT EAL: EXPLOSION in ANY Table H-1 plant structure affecting the operability of plant safety systems required to establish or maintain safe shutdown Table H-1 Plant Structures Containing Safe Shutdown Systems or Components
- Reactor Building* Control/Auxiliary Building* Service Water Intake Structure* Service/Radwaste Building Basis: The significance here is that the EXPLOSION was large enough to cause damage to these systems.The declaration of an ALERT and the activation of the Technical Support Center will provide the Emergency Coordinator with the resources needed to perform detailed damage assessments.
The Emergency Coordinator also needs to consider any security aspects of the EXPLOSION.
Escalation of this emergency classification level, if appropriate, will be based on EALs in Category S, System Malfunctions, Category F, Fission Product Barrier Degradation, or Category R, Abnormal Rad Levels / Rad Effluent.Explanation/Discussion/Definitions:
If the EXPLOSION is determined to be hostile in nature, the event is classified under EAL HS4.1.Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: HA2.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-208 The Table H-1 Plant Structures Containing Safe Shutdown Systems or Components include those plant structures identified as Seismic Category I.Definitions:
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.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.
VITAL AREAS: Typically any site specific areas, normally within the PROTECTED AREA, that contains equipment, systems, components, or material, the failure, destruction, or release of which could directly or indirectly endanger the public health and safety by exposure to radiation.
PROTECTED AREA (PA): A security controlled area within the OWNER CONTROLLED AREA (OCA) that is enclosed by the security perimeter fence and monitored by intrusion detection systems. Access to the PA requires proper security clearance and is controlled at the Security Center.OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, HA2 Example EAL #1 2. UFSAR Table 3.2-1 HCGS Classification of Structures, Systems and Components Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: HA2.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-209 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: H -Hazards & Other Conditions Affecting Plant Safety 3 -Hazardous Gas Release of toxic, corrosive, asphyxiant or flammable gases deemed detrimental to NORMAL PLANT OPERATIONS All HU3.1 -UNUSUAL EVENT EAL: Release of toxic, corrosive, asphyxiant or flammable gas in amounts (excluding small or incidental releases) that have or could adversely affect NORMAL PLANT OPERATIONS Basis: This EAL is based on the release of toxic, corrosive, asphyxiant or flammable gases of sufficient quantity to affect normal plant operations.
The fact that SCBA or other respiratory protection may be worn does not eliminate the need to declare the event.This EAL is not intended to require significant assessment or quantification.
It assumes an uncontrolled process that has the potential to affect NORMAL 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 EAL HA3.1.Explanation/Discussion/Definitions:
The release may have originated within the Site Boundary, or it may have originated offsite and subsequently drifted onto the Site Boundary.
Offsite events (e.g., tanker truck accident Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: HU3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-209 releasing toxic gases, etc.) resulting in the plant being within the evacuation area should also be considered in this EAL because of the adverse affect on NORMAL PLANT OPERATIONS.
Should the release affect plant VITAL AREAS, escalation to an ALERT would be based on EAL HA3.1. Should an EXPLOSION or FIRE occur due to flammable gas within an affected plant area, an ALERT may be appropriate based on EAL HA2.1 or EAL HA2.2.A Toxic Gas is considered to be any substance that is dangerous to life or limb by reason of inhalation or skin contact.A Flammable Gas is considered to be any substance that can result in an ignition, sustained burn or detonation.
Carbon dioxide (C02) is an asphyxiant gas. A 20 lb CO 2 extinguisher discharge will not create a hazardous atmosphere unless the room volume is less than 2500 cubic feet.A Corrosive Gas is a highly reactive substance that causes obvious damage to living tissue.Corrosives act either directly, by chemically destroying the part or indirectly by causing inflammation.
Acids and bases are common corrosive materials.
Corrosives such as these are also sometimes referred to as caustics.This EAL should not be construed to include confined spaces that must be ventilated prior to entry or situations involving the fire department personnel who are using respiratory equipment during the performance of their duties unless it also affects personnel not involved with the fire department activates.
In addition, those situations that require personnel to wear respiratory protection equipment as the result of airborne contamination as required by Radiation Protection personnel do not meet the intent of this EAL.Definitions:
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 abnormal or emergency operating procedures, or deviation from normal security or radiological controls posture, is a departure from NORMAL PLANT OPERATIONS.
VITAL AREA: Typically any site specific areas, normally within the PROTECTED AREA, that contains equipment, systems, components, or material, the failure, destruction, or release of which could directly or indirectly endanger the public health and safety by exposure to radiation.
PROTECTED AREA (PA): A security controlled area within the OWNER CONTROLLED AREA (OCA) that is enclosed by the security perimeter fence and monitored by intrusion detection systems. Access to the PA requires proper security clearance and is controlled at the Security Center.I Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: HU3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-209 OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.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.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.
EAL Bases Reference(s):
- 3. OE25324 Alert Declared Due to C02 Fire Extinguisher Discharge Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: HU3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-209 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: HU3.1 HCGS ECG -EAL Technical Bases EP-HC-111-209 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
H -Hazards & Other Conditions Affecting Plant Safety 3 -Hazardous Gas Release of toxic, corrosive, asphyxiant or flammable gases deemed detrimental to NORMAL PLANT OPERATIONS All EAL# & Classification Level: HU3.2 -UNUSUAL EVENT (Common Site)EAL: Notification by Local, County, or State Officials for evacuation or sheltering of site personnel based on an off-site gas release event that includes toxic, corrosive, asphyxiant, or flammable gas Basis: The fact that SCBA or other respiratory protection may be worn does not eliminate the need to declare 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.Escalation of this emergency classification level, if appropriate, would be based on EAL HA3.1.Explanation/Discussion/Definitions:
This EAL is based on the existence of an uncontrolled release originating offsite and local, county or state officials have reported the need for evacuation or sheltering of site personnel.
State and local officials may determine the evacuation area for an offsite spill or release by using "The Emergency Response Guidebook (ERG2008)" developed by the US Department of Transportation.
Should the release affect plant VITAL AREAS, escalation to an ALERT would be based on EAL HA3.1. Should an EXPLOSION or FIRE occur due to flammable gas within an affected plant area, an ALERT may be appropriate based on EAL HA2.1.Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: HU3.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-209 A Toxic Gas is considered to be any substance that is dangerous to life or limb by reason of inhalation or skin contact.A Flammable Gas is considered to be any substance that can result in an ignition, sustained burn or detonation.
Carbon dioxide (C02) is an asphyxiant gas. A 20 lb C02 extinguisher discharge will not create a hazardous atmosphere unless the room volume is less than 2500 cubic feet.A Corrosive Gas is a highly reactive substance that causes obvious damage to living tissue.Corrosives act either directly, by chemically destroying the part or indirectly by causing inflammation.
Acids and bases are common corrosive materials.
Corrosives such as these are also sometimes referred to as caustics.Definitions:
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 abnormal or emergency operating procedures, or deviation from normal security or radiological controls posture, is a departure from NORMAL PLANT OPERATIONS.
VITAL AREA: Typically any site specific areas, normally within the PROTECTED AREA, that contains equipment, systems, components, or material, the failure, destruction, or release of which could directly or indirectly endanger the public health and safety by exposure to radiation.
PROTECTED AREA (PA): A security controlled area within the OWNER CONTROLLED AREA (OCA) that is enclosed by the security perimeter fence and monitored by intrusion detection systems. Access to the PA requires proper security clearance and is controlled at the Security Center.OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.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.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.
Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: HU3.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-209 EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, HU3 Example EAL #2 2. The Emergency Response Guidebook (ERG2008)3. OE25324 Alert Declared Due to C02 Fire Extinguisher Discharge Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: HU3.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-209 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: HU3.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-209 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
H -Hazards & Other Conditions Affecting Plant Safety 3 -Hazardous Gas 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 shut down the reactor All EAL# & Classification Level: HA3.M -ALERT EAL: Access to ANY Table H-1 plant structure is prohibited due to toxic, corrosive, asphyxiant, or flammable gases which jeopardize operation of systems required to maintain safe operations or safely shut down the reactor (Note 5)Note 5: 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 shut down beyond that already allowed by Technical Specifications at the time of the event.Table H-1 Plant Structures Containing Safe Shutdown Systems or Components
- Reactor Building* Control/Auxiliary Building* Service Water Intake Structure* Service/Radwaste Building Basis: Gases in a VITAL AREA can affect the ability to safely operate or safely shut down the reactor.The fact that SCBA may be worn does not eliminate the need to declare the event.Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: HA3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-209 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.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 EALs in Category S, System Malfunctions, Category F, Fission Product Barrier Degradation, or Category R, Abnormal Rad Levels / Rad Effluent.Explanation/Discussion/Definitions:
This EAL is based on gases that have entered a plant structure in concentrations that could be unsafe for plant personnel and, therefore, preclude access to equipment necessary for the safe operation or safe shutdown of the plant. The Table H-1 Plant Structures Containing Safe Shutdown Systems or Components include those plant structures identified as Seismic Category I.This EAL does not apply to routine inerting of the Primary Containment.
A Toxic Gas is considered to be any substance that is dangerous to life or limb by reason of inhalation or skin contact.A Flammable Gas is considered to be any substance that can result in an ignition, sustained burn or detonation.
Carbon dioxide (CO 2) is an asphyxiant gas. A 20 lb CO 2 extinguisher discharge will not create a hazardous atmosphere unless the room volume is less than 2500 cubic feet.A Corrosive Gas is a highly reactive substance that causes obvious damage to living tissue.Corrosives act either directly, by chemical destruction or indirectly by causing inflammation.
Acids and bases are common corrosive materials.
Corrosives such as these are also sometimes referred to as caustics.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: HA3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-209 This EAL should not be construed to include confined spaces that must be ventilated prior to entry or situations involving the fire department personnel who are using respiratory equipment during the performance of their duties unless it also affects personnel not involved with the fire department activates.
In addition, those situations that require personnel to wear respiratory protection equipment as the result of airborne contamination as required by Radiation Protection personnel do not meet the intent of this EAL.Definitions:
VITAL AREA: Typically any site specific areas, normally within the PROTECTED AREA, that contains equipment, systems, components, or material, the failure, destruction, or release of which could directly or indirectly endanger the public health and safety by exposure to radiation.
PROTECTED AREA (PA): A security controlled area within the OWNER CONTROLLED AREA (OCA) that is enclosed by the security perimeter fence and monitored by intrusion detection systems. Access to the PA requires proper security clearance and is controlled at the Security Center.OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, HA3 Example EAL #1 2. UFSAR Table 3.2-1 HCGS Classification of Systems, Structures and Components
- 3. HC.OP-AB.HVAC-0002 Control Room Environment
- 4. OE25324 Alert Declared Due to C02 Fire Extinguisher Discharge Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: HA3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-209 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: HA3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-210 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
H -Hazards & Other Conditions Affecting Plant Safety 4 -Security Confirmed SECURITY CONDITION or threat which indicates a potential degradation in the level of safety of the plant All EAL# & Classification Level: HU4.1 -UNUSUAL EVENT (Common Site)EAL: A SECURITY CONDITION that does NOT involve a HOSTILE ACTION as reported by the Security Operations Supervisor or designee (Note 9)OR Receipt of a CREDIBLE/ACTUAL THREAT to Salem or Hope Creek station -(determined by security in accordance with SY-AA-1 01-132, "Threat Assessment") (Note 9)OR A VALIDATED notification from NRC providing information of a Salem/Hope Creek AIRCRAFT threat NOTE 9: Shift Manager (SM) should implement the Prompt Actions of NC.EP-EP.ZZ-0102, EC Response, Attachment 10, prior to classification of a security emergency.
Key Information to obtain from Security Supervision upon SM notification of a security event: Determination if the security event is a HOSTILE ACTION or SECURITY CONDITION* If a HOSTILE ACTION, is location the OCA or PA?Basis: 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 EAL HA4.1, EAL HS4.1 and EAL HG4.1.Hope Creek Page 1 of 6 Rev. 0 (draft E)EAL#: HU4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-210 A higher initial classification could be made based upon the nature and timing of the security threat and potential consequences.
The Emergency Coordinator shall consider upgrading the emergency response status and emergency classification level in accordance with the Salem-Hope Creek Security Contingency Plan.1 st Condition (SECURITY CONDITION)
Reference is made to the specific security shift supervision (Security Operations Supervisor or designee) because these individuals are the designated personnel 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 Salem -Hope Creek Security Contingency Plan.This threshold is based on the Salem -Hope Creek Security Contingency Plan. The Salem -Hope Creek Security Contingency Plan is based on guidance provided by NEI 03-12, Template for the Security Plan, Training and Qualification Plan, Security Contingency Plan and ISFSI Program.2 nd Condition (CREDIBLE
/ ACTUAL THREAT)This threshold 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 site to which the specific threat is made needs declare the Notification of an UNUSUAL EVENT.The determination of CREDIBLE is made through use of information found in Threat Assessment, SY-AA-101-132.
3 rd Condition (AIRCRAFT threat)The intent of this part of the EAL is to ensure that notifications for the AIRCRAFT threat are made in a timely manner and that offsite response organization (OROs) 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 (site) receives information regarding an AIRCRAFT threat from NRC. Validation is performed by calling the NRC or by other approved methods of authentication.
Only the site to which the specific threat is made need declare the UNUSUAL 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 emergency classification level would be via EAL HA4.1 and would be appropriate if the threat involves an AIRLINER within 30 minutes of the plant or a HOSTILE ACTION in the OCA or PA.Hope Creek Page 2 of 6 Rev. 0 (draft E)EAL#: HU4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-210 Explanation/Discussion/Definitions:
If the security events do not meet the threshold for an UNUSUAL EVENT classification, they may result in the need to make a non-emergency report per RAL Section 11.7.1.a, One Hour Non-Emergency Safeguards Event (10 CFR 73.71) as determined by Security per SY-AA-1002, "Safeguards Event Report." Security will be focused on actions to mitigate the security event and will provide the SM with key information as the event progresses.
Communications between the SMs and the Security Team Leader should be accurate, concise, and focused on EAL criteria and protection of key target sets. As Security and Operations terminology sometimes differ, clarifying questions should be asked to ensure accurate information exchange.1 st Condition (SECURITY CONDITION)
Page 6 of this EAL Basis is a "Security Contingency Event Summary Table" that indicates which Security Contingency Events could result in Security Supervision determining that a SECURITY CONDITION exists and therefore an UNUSUAL EVENT classification should be made OR, could result in Security Supervision determining that a HOSTILE ACTION is or has occurred and therefore classification at the ALERT or higher level should be made based on the location (OCA or PA) of the HOSTILE ACTION.2 nd Condition (CREDIBLE
/ ACTUAL THREAT)This threshold is included to ensure that threat information from any source which is assessed by security supervision as being a "CREDIBLE/ACTUAL THREAT" is classified as an UNUSUAL EVENT. Only the site to which the specific threat is made needs to declare the UNUSUAL EVENT. For Security Events, Salem and Hope Creek is considered a single site, therefore a "CREDIBLE/ACTUAL THREAT" to either Salem or Hope Creek would affect the entire site and a "Common Site" UE declaration would be made.Timely classification will ensure that Offsite Response Organizations and plant personnel are notified in a timely manner resulting in a state of heightened awareness.
Threats are evaluated by security per Threat Assessment, SY-AA-1 01-132. Security threats that do not meet the definition of a "CREDIBLE/ACTUAL THREAT" should be dispositioned lAW Threat Assessment, SY-AA-101-132.
3 rd Condition (AIRCRAFT threat)AIRCRAFT threat calls from the NRC should be VALIDATED by use of NRC authentication code or a return call to the NRC Headquarter Operations Center.For security events, Salem and Hope Creek is considered a single site, therefore, a"VALIDATED AIRCRAFT THREAT" to either Salem or Hope Creek would affect the entire site and a "Common Site" UE declaration would be made.Hope Creek Page 3 of 6 Rev. 0 (draft E)EAL#: HU4.1 HCGS ECG -EAL Technical Bases EP-HC-11 11-210 Definitions:
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.VALIDATED:
AIRCRAFT threat call from the NRC that is confirmed to be authentic.
Calls from the NRC are VALIDATED by use of the NRC provided authentication code or by making a return call to the NRC Headquarter Operations Center and confirming threat information with the NRC Operation Officer. AIRCRAFT threat calls from other agencies, NORAD, FAA, or FBI should be VALIDATED by calling the NRC Operations Officer.AIRCRAFT:
Includes both small and large AIRCRAFT.
Examples of AIRCRAFT include general aviation Cessna, Piper and Lear type private planes, large passenger or freight planes as well as police, medical and media helicopters.
A large AIRCRAFT is referred to as an AIRLINER.AIRLINER/LARGE AIRCRAFT:
Any size or type of AIRCRAFT with the potential for causing significant damage to the plant (refer to the Security Contingency Plan for a more detailed definition).
CREDIBLE / ACTUAL THREAT: Is a threat which poses a likely and serious danger to the safe operation of the facility or to site personnel and public safety.HOSTILE ACTION: An act toward Salem or Hope Creek 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 Salem or Hope Creek. Non-terrorism-based EALs should be used to address such activities (i.e., this may include violent acts between individuals in the OCA).OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, the area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.PROTECTED AREA (PA): A security controlled area within the OWNER-CONTROLLED AREA (OCA) that is enclosed by the security perimeter fence and monitored by intrusion detection systems. Access to the PA requires proper security clearance and is controlled at the Security center.Hope Creek Page 4 of 6 Rev. 0 (draft E)EAL#: HU4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-210 PROJECTILE:
An object that impacts Salem/Hope Creek that could cause concern for continued operability, reliability, or personnel safety.HOSTAGE: A person(s) held as leverage against the station to ensure that demands will be met by the station.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, HU4 Example EAL #1, #2, #3 2. Salem -Hope Creek Security Contingency Plan 3. SY-AA-101-132 Threat Assessment
- 4. HC.OP-AB.SEC-0001 Security Event 5. HC.OP-AB.SEC-0002 Airborne Threat Hope Creek Page 5 of 6 Rev. 0 (draft E)EAL#: HU4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-210 Security Contingency Event Summary Table Event Could Event Could Result in Result in Contingency Contingency Determination Determination Event of a of a Number Event SECURITY HOSTILE Title CONDITION ACTION (UE ONLY) (ALERT or Higher)Yes / No Yes / No# 1 Malevolent Threat / Use of a Vehicle Yes Yes# 2 Detection of Impending Attack / Threat Directed Yes Yes Armed Attack# 3 Civil Disturbance Yes No# 4 PA/VA Intrusion or Detection of a Breached Barrier No Yes# 5 Fire / Explosion or other Catastrophic Event Yes Yes# 6 Detection of Aberrant Behavior No No# 7 Security Force Strike / Unavailability of Security No No Force# 8 Loss of Contact with Security Officer Yes Yes# 9 Confirmed Sabotage / Tampering
/ Vandalism
/ Yes Yes Malicious Mischief# 10 Bomb Threat / Explosive Device Discovered Yes Yes# 11 Loss of Onsite / Offsite Security Communications Yes No# 12 Loss of Security System Power Yes No# 13 Loss of Alarm Assessment Capability Yes No# 14 Loss of Security Lighting Yes No# 15 Loss of Security Computer Yes No# 16 Extortion
/ Coercion / Hostage Threat Yes Yes# 17 Waterborne Threat Yes Yes# 18 Coordinated Land Vehicle Bomb Attack No Yes# 19 Standoff Attack by a Sniper Yes Yes# 20 Insider Threat Yes No Hope Creek Page 6 of 6 Rev. 0 (draft E)EAL#: HU4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-210 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
H -Hazards & Other Conditions Affecting Plant Safety 4 -Security HOSTILE ACTION within the OWNER CONTROLLED AREA or airborne attack threat All EAL# & Classification Level: HA4.1 -ALERT EAL: A HOSTILE ACTION is occurring or has occurred within the OCA as reported by the Security Operations Supervisor or designee (Note 9)OR A VALIDATED notification from NRC of a AIRLINER attack threat < 30 minutes away from Salem/Hope Creek (Note 9)NOTE 9: Shift Manager (SM) should implement the Prompt Actions of NC.EP-EP.ZZ-0102, EC Response, Attachment 10, prior to classification of a security emergency.
Key Information to obtain from Security Supervision upon SM notification of a security event: " Determination if the security event is a HOSTILE ACTION or SECURITY CONDITION" If a HOSTILE ACTION, is location the OCA or PA?Basis: This EAL addresses 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).
Hope Creek Page 1 of 6 Rev. 0 (draft E)EAL#: HA4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-210 1 st Condition (OCA HOSTILE ACTION)This EAL addresses the potential for a very rapid progression of events due to a HOSTILE ACTION within or directed towards the OWNER CONTROLLED AREA (OCA). 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 OCA.Those events are adequately addressed by other EALs or RALs Note that this EAL is applicable for any HOSTILE ACTION occurring, or that has occurred, in the OWNER CONTROLLED AREA.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 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.
2 nd Condition (AIRLINER threat)This EAL addresses the immediacy of an expected threat (AIRLINER) arrival or impact on the site within a relatively short time (< 30 minutes).The intent of this EAL is to ensure that notifications for the AIRLINER attack threat are made in a timely manner and that OROs 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 site.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 site 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.Hope Creek Page 2 of 6 Rev. 0 (draft E)EAL#: HA4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-210 Explanation/Discussion/Definitions:
This event will be escalated to a SITE AREA EMERGENCY based upon HOSTILE ACTION affecting the PROTECTED AREA (PA). Also, if Salem declares an SAE due to their PA being affected by the security event, Hope Creek will escalate to SAE to match them.1 st Condition (OCA HOSTILE ACTION)Reference is made to the specific security shift supervision (Security Operations Supervisor or designee) because these individuals are the designated personnel on-site qualified and trained to confirm that a HOSTILE ACTION is occurring or has occurred.This EAL condition is not premised solely on adverse health effects caused by a radiological release. Rather the issue is the immediate need for assistance due to the nature of the event and the potential for significant and indeterminate damage. Although nuclear plant security officers are well trained and prepared to protect against HOSTILE ACTION, it is appropriate for Offsite Response Organizations (OROs) to be notified and encouraged to begin activation to be better prepared should it be necessary to consider further actions.Page 6 of this EAL Basis is a "Security Contingency Event Summary Table" that indicates which Security Contingency Events could result in Security Supervision determining that a HOSTILE ACTION is or has occurred and therefore classification at the ALERT or higher level should be made based on the location (OCA or PA) of the HOSTILE ACTION. Security events that do not involve a HOSTILE ACTION may result in Security Supervision determining that a SECURITY CONDITION exists and therefore an UNUSUAL EVENT classification should be made per EAL HU4.1.2 nd Condition (AIRLINER threat)The fact that the site is an identified attack candidate with minimal time available for further preparation requires a heightened state of readiness and implementation of protective measures that can be effective (onsite evacuation, dispersal, or sheltering) before arrival or impact.This EAL is met when a plant receives VALIDATED information regarding an AIRLINER attack threat from NRC and the AIRLINER is less than 30 minutes away from the site. Only the site (Salem and Hope Creek is considered a single site for Security event classifications) to which the specific threat is made needs declare the ALERT.AIRLINER threat calls from the NRC should be VALIDATED by use of NRC authentication code or a return call to the NRC Headquarter Operations Center.Hope Creek Page 3 of 6 Rev. 0 (draft E)EAL#: HA4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-210 Definitions:
HOSTILE ACTION: An act toward Salem or Hope Creek 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 Salem or Hope Creek. 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).OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.HOSTAGE: A person(s) held as leverage against the station to ensure that demands will be met by the station.PROTECTED AREA (PA): A security controlled area within the OWNER-CONTROLLED AREA (OCA) that is enclosed by the security perimeter fence and monitored by intrusion detection systems. Access to the PA requires proper security clearance and is controlled at the Security Center.AIRCRAFT:
Includes both small and large AIRCRAFT.
Examples of AIRCRAFT include general aviation Cessna, Piper and Lear type private planes, large passenger or freight planes as well as police, medical and media helicopters.
A large AIRCRAFT is referred to as an AIRLINER.AIRLINER/LARGE AIRCRAFT:
Any size or type of AIRCRAFT with the potential for causing significant damage to the plant (refer to the Security Contingency Plan for a more detailed definition).
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.PROJECTILE:
An object directed toward Salem/Hope Creek that could cause concern for its continued operability, reliability, or personnel safety.Hope Creek Page 4 of 6 Rev. 0 (draft E)EAL#: HA4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-210 VALIDATED:
AIRCRAFT threat call from the NRC that is confirmed to be authentic.
Calls from the NRC are VALIDATED by use of the NRC provided authentication code or by making a return call to the NRC Headquarter Operations Center and confirming threat information with the NRC Operation Officer. AIRCRAFT threat calls from other agencies, NORAD, FAA, or FBI should be VALIDATED by calling the NRC Operations Officer.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, HA4 Example EAL #1, #2 2. Salem -Hope Creek Security Contingency Plan 3. HC.OP-AB.SEC-0001 Security Event 4. HC.OP-AB.SEC-0002 Airborne Threat Hope Creek Page 5 of 6 Rev. 0 (draft E)EAL#: HA4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-210 Security Contingency Event Summary Table Event Could Event Could Result in Result in Contingency Contingency Determination Determination Event of a of a Number Event SECURITY HOSTILE Title CONDITION ACTION (UE ONLY) (ALERT or Higher)Yes / No Yes / No# 1 Malevolent Threat / Use of a Vehicle Yes Yes# 2 Detection of Impending Attack / Threat Directed Yes Yes Armed Attack# 3 Civil Disturbance Yes No# 4 PA/VA Intrusion or Detection of a Breached Barrier No Yes# 5 Fire / Explosion or other Catastrophic Event Yes Yes# 6 Detection of Aberrant Behavior No No# 7 Security Force Strike / Unavailability of Security No No Force# 8 Loss of Contact with Security Officer Yes Yes# 9 Confirmed Sabotage / Tampering
/ Vandalism
/ Yes Yes Malicious Mischief# 10 Bomb Threat / Explosive Device Discovered Yes Yes# 11 Loss of Onsite / Offsite Security Communications Yes No# 12 Loss of Security System Power Yes No# 13 Loss of Alarm Assessment Capability Yes No# 14 Loss of Security Lighting Yes No# 15 Loss of Security Computer Yes No# 16 Extortion
/ Coercion / Hostage Threat Yes Yes# 17 Waterborne Threat Yes Yes# 18 Coordinated Land Vehicle Bomb Attack No Yes# 19 Standoff Attack by a Sniper Yes Yes# 20 Insider Threat Yes No Hope Creek Page 6 of 6 Rev. 0 (draft E)EAL#: HA4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-210 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: EAL: H -Hazards & Other Conditions Affecting Plant Safety 4 -Security HOSTILE ACTION within the PROTECTED AREA All HS4.1 -SITE AREA EMERGENCY A HOSTILE ACTION is occurring or has occurred within the PROTECTED AREA as reported by the Security Operations Supervisor or designee (Note 9)NOTE 9: Shift Manager (SM) should implement the Prompt Actions of NC.EP-EP.ZZ-0102, EC Response, Attachment 10, prior to classification of a security emergency.
Key Information to obtain from Security Supervision upon SM notification of a security event: " Determination if the security event is a HOSTILE ACTION or SECURITY CONDITION* If a HOSTILE ACTION, is location the OCA or PA?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 due to a HOSTILE ACTION within or directed towards the PROTECTED AREA (PA). Plant VITAL AREAS are within the PROTECTED AREA and are generally controlled by card key readers. A HOSTILE ACTION in the PROTECTED AREA (which includes VITAL AREAS) could represent a situation that threatens the safety of plant personnel and the general public.These EALs address 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.Hope Creek Page 1 of 6 Rev. 0 (draft E)EAL#: HS4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-210 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 (ORO) readiness and preparation for the implementation of protective measures.This EAL 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 or RALs.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 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 to a GENERAL EMERGENCY, if appropriate, would be based upon the actual loss of physical control of the facility.
If necessary, Salem will declare this event.Explanation/Discussion/Definitions:
The Security Shift Supervision is defined as the Security Operations Supervisor or designee.These individuals are the designated on-site personnel 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 Salem -Hope Creek Security Contingency Plan (Safeguards) information.
PROJECTILES that are directed into or that have impacted the PA from the OCA or beyond are considered under this EAL as HOSTILE ACTIONS within the PA.Page 5 of this EAL Basis is a "Security Contingency Event Summary Table" that indicates which Security Contingency Events could result in Security Supervision determining that a HOSTILE ACTION is or has occurred and therefore classification at the ALERT or higher level should be made based on the location (OCA or PA) of the HOSTILE ACTION. Security events that do not involve a HOSTILE ACTION may result in Security Supervision determining that a SECURITY CONDITION exists and therefore an UNUSUAL EVENT classification should be made per EAL HU4.1.Hope Creek Page 2 of 6 Rev. 0 (draft E)EAL#: HS4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11 -210 Definitions:
HOSTILE ACTION: An act toward Salem or Hope Creek 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 Salem or Hope Creek. Non-terrorism-based EALs should be used to address such activities (i.e., this may include violent acts between individuals in the OCA).OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.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.
HOSTAGE: A person(s) held as leverage against the station to ensure that demands will be met by the station.PROTECTED AREA (PA): A security controlled area within the OWNER-CONTROLLED AREA (OCA) that is enclosed by the security perimeter fence and monitored by intrusion detection systems. Access to the PA requires proper security clearance and is controlled at the Security Center.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.AIRCRAFT:
Includes both small and large AIRCRAFT.
Examples of AIRCRAFT include general aviation Cessna, Piper and Lear type private planes, large passenger or freight planes as well as police, medical and media helicopters.
A large AIRCRAFT is referred to as an AIRLINER.AIRLINER/LARGE AIRCRAFT:
Any size or type of AIRCRAFT with the potential for causing significant damage to the plant (refer to the Security Contingency Plan for a more detailed definition).
PROJECTILE:
An object that impacts Salem and/or Hope Creek that could cause concern for continued operability, reliability, or personnel safety.Hope Creek Page 3 of 6 Rev. 0 (draft E)EAL#: HS4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-210 VITAL AREAS: Typically any site specific areas, normally within the PROTECTED AREA, that contains equipment, systems, components, or material, the failure, destruction, or release of which could directly or indirectly endanger the public health and safety by exposure to radiation.
EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, HA4 Example EAL #1, #2 2. Salem -Hope Creek Security Contingency Plan 3. HC.OP-AB.SEC-0001 Security Event 4. HC.OP-AB.SEC-0002 Airborne Threat Hope Creek Page 4 of 6 Rev. 0 (draft E)EAL#: HS4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11 -210 Security Contingency Event Summary Table Event Could Event Could Result in Result in Contingency Determination Determination Event Contingency of a of a Number Event SECURITY HOSTILE Title CONDITION ACTION (UE ONLY) (ALERT or Higher)Yes / No Yes / No# 1 Malevolent Threat / Use of a Vehicle Yes Yes# 2 Detection of Impending Attack / Threat Yes Yes Directed Armed Attack# 3 Civil Disturbance Yes No# 4 PA/VA Intrusion or Detection of a Breached No Yes Barrier# 5 Fire / Explosion or other Catastrophic Event Yes Yes# 6 Detection of Aberrant Behavior No No# 7 Security Force Strike / Unavailability of No No Security Force# 8 Loss of Contact with Security Officer Yes Yes# 9 Confirmed Sabotage / Tampering
/ Vandalism
/ Yes Yes Malicious Mischief# 10 Bomb Threat / Explosive Device Discovered Yes Yes# 11 Loss of Onsite / Offsite Security Yes No Communications
- 12 Loss of Security System Power Yes No# 13 Loss of Alarm Assessment Capability Yes No# 14 Loss of Security Lighting Yes No# 15 Loss of Security Computer Yes No# 16 Extortion
/ Coercion / Hostage Threat Yes Yes# 17 Waterborne Threat Yes Yes#18 Coordinated Land Vehicle Bomb Attack No Yes# 19 Standoff Attack by a Sniper Yes Yes# 20 Insider Threat Yes No Hope Creek Page 5 of 6 Rev. 0 (draft E)EAL#: HS4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11 -210 This page intentionally blank Hope Creek Page 6 of 6 Rev. 0 (draft E)EAL#: HS4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-210 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
H -Hazards & Other Conditions Affecting Plant Safety 4 -Security HOSTILE ACTION resulting in loss of physical control of the facility All EAL# & Classification Level: HG4.1 -GENERAL EMERGENCY EAL: A HOSTILE ACTION has occurred such that plant personnel are unable to operate equipment required to maintain safety functions (i.e., reactivity control, RPV water level, or decay heat removal) at Salem or Hope Creek (Note 9)OR A HOSTILE ACTION has caused failure of Spent Fuel Cooling Systems and IMMINENT fuel damage is likely at Salem or Hope Creek (Note 9)NOTE 9: Shift Manager (SM) should implement the Prompt Actions of NC.EP-EP.ZZ-0102, EC Response, Attachment 10, prior to classification of a security emergency.
Key Information to obtain from Security Supervision upon SM notification of a security event: " Determination if the security event is a HOSTILE ACTION or SECURITY CONDITION" If a HOSTILE ACTION, is location the OCA or PA?Basis: 1st Condition 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.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).Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: HG4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-210 If control of the plant equipment necessary to maintain safety functions can be transferred to another location, then the threshold is not met.2nd Condition This EAL addresses failure of spent fuel cooling systems as a result of HOSTILE ACTION if IMMINENT fuel damage is likely.Explanation/Discussion/Definitions:
Definitions:
HOSTILE ACTION: An act toward Salem or Hope Creek 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 Salem or Hope Creek. Non-terrorism-based EALs should be used to address such activities (i.e., this may include violent acts between individuals in the OCA).PROJECTILE:
An object that impacts Salem and/or Hope Creek that could cause concern for continued operability, reliability, or personnel safety.VITAL AREAS: Typically any site specific areas, normally within the PROTECTED AREA, that contains equipment, systems, components, or material, the failure, destruction, or release of which could directly or indirectly endanger the public health and safety by exposure to radiation.
PROTECTED AREA (PA): A security controlled area within the OWNER-CONTROLLED AREA (OCA) that is enclosed by the security perimeter fence and monitored by intrusion detection systems. Access to the PA requires proper security clearance and is controlled at the Security Center.HOSTAGE: A person(s) held as leverage against the station to ensure that demands will be met by the station.OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.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 within approximately 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: HG4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-210 EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, HG1 Example EAL #1, #2 2. HC.OP-AB.SEC-0001 Security Event 3. HC.OP-AB.SEC-0002 Airborne Threat Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: HG4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-210 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: HG4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-211 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
H -Hazards & Other Conditions Affecting Plant Safety 5 -Control Room Evacuation Control Room evacuation has been initiated All EAL# & Classification Level: HA5.1 -ALERT EAL: Control Room evacuation has been initiated 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 per EAL HS5.1.Explanation/Discussion/Definitions:
Control Room evacuation represents a serious plant situation since the degree of plant control at the Remote Shutdown Panel (RSP) is not as complete as from the Control Room. The intent of this EAL is to declare an ALERT when the determination to evacuate the Control Room has been made based on environmental/personnel safety concerns, and the physical process of evacuating the Control Room per HC.OP-AB.HVAC-0002(Q), Control Room Environment, has commenced.
The Shift Manager (SM) determines if the Control Room requires evacuation.
Control Room inhabitability may be caused by fire, dense smoke, noxious fumes, bomb threat in or adjacent to the Control Room, or other life threatening conditions.
EAL Bases Reference(s):
Control Room Environment
- 3. HC.OP-IO.ZZ-008(Q)
Shutdown from Outside the Control Room Hope Creek Page 1 of I Rev. 0 (draft E)EAL#: HA5.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-211 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
H -Hazards & Other Conditions Affecting Plant Safety 5 -Control Room Evacuation Control Room evacuation has been initiated and plant control CANNOT be established All EAL# & Classification Level: HS5.1 -SITE AREA EMERGENCY EAL: Control Room evacuation has been initiated AND Control of the plant CANNOT be established within 15 minutes (Note 3)Note 3: The Emergency Coordinator 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.Basis: The intent of this EAL 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.
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).The Emergency Coordinator is expected to make a reasonable, informed judgment within the allocated 15 minutes that the licensee has control of the plant from the remote shutdown panel.Escalation of this emergency classification level, if appropriate, would be by EALs in Category F, Fission Product Barrier Degradation, or Category R, Abnormal Rad Levels/Rad Effluent.Hope Creek Page 1 of 3 Rev. 0 (draft E)EAL#: HS5.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-211 Explanation/Discussion/Definitions:
The Shift Manager determines if the Control Room is inoperable and requires evacuation.
Control Room inhabitability may be caused by fire, dense smoke, noxious fumes, bomb threat in or adjacent to the Control Room, or other life threatening conditions.
EAL Bases Reference(s):
Control Room Environment
- 3. HC.OP-IO.ZZ-008(Q)
Shutdown from Outside the Control Room Hope Creek Page 2 of 3 Rev. 0 (draft E)EAL#: HS5.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-211 This page intentionally blank Hope Creek Page 3 of 3 Rev. 0 (draft E)EAL#: HS5.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-212 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
C -Hazards & Other Conditions Affecting Plant Safety 6 -EC Judgment Other conditions exist which in the judgment of the Emergency Coordinator warrant declaration of an UNUSUAL EVENT All EAL# & Classification Level: HU6.1 -UNUSUAL EVENT EAL: Other conditions exist which in the judgment of the Emergency Coordinator 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 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 Emergency Coordinator to fall under the UNUSUAL EVENT emergency classification level.Explanation/Discussion/Definitions:
None EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, HU5 Example EAL #1 Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: HU6.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-212 This page intentionally blank Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: HU6.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-212 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
C -Hazards & Other Conditions Affecting Plant Safety 6 -EC Judgment Other conditions exist which in the judgment of the Emergency Coordinator warrant declaration of an ALERT All EAL# & Classification Level: HA6.1 -ALERT EAL: Other conditions exist which in the judgment of the Emergency Coordinator 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 Emergency Coordinator to fall under the ALERT emergency classification level.Explanation/Discussion/Definitions:
Definitions:
HOSTILE ACTION: An act toward Salem or Hope Creek 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 Salem or Hope Creek plants.HOSTAGE: A person(s) held as leverage against the station to ensure that demands will be met by the station.PROJECTILE:
An object that impacts Salem and/or Hope Creek that could cause concern for its continued operability, reliability, or personnel safety.Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: HA6.1 HCGS ECG -EAL Technical Bases EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, HA6 Example EAL #1 EP-HC-1 11-212 Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: HA6.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-212 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: EAL: C -Hazards & Other Conditions Affecting Plant Safety 6 -EC Judgment Other conditions exist which in the judgment of the Emergency Coordinator warrant declaration of a SITE AREA EMERGENCY All HS6.1 -SITE AREA EMERGENCY Other conditions exist which in the judgment of the Emergency Coordinator 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 Emergency Coordinator to fall under the emergency classification level description for SITE AREA EMERGENCY.
Explanation/Discussion/Definitions:
Definitions:
HOSTILE ACTION: An act toward Salem or Hope Creek 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 Salem or Hope Creek plants.HOSTAGE: A person(s) held as leverage against the station to ensure that demands will be met by the station.Hope Creek Page 1 of 2 Rev. 0 (draft E2)EAL#: HS6.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-212 PROJECTILE:
An object that impacts Salem and/or Hope Creek that could cause concern for its continued operability, reliability, or personnel safety.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, HS3 Example EAL #1 Hope Creek Page 2 of 2 Rev. 0 (draft E2)EAL#: HS6.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-212 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: EAL: C -Hazards & Other Conditions Affecting Plant Safety 6 -EC Judgment Other conditions exist which in the judgment of the Emergency Coordinator warrant declaration of a GENERAL EMERGENCY All HG6.1 -GENERAL EMERGENCY Other conditions exist which in the judgment of the Emergency Coordinator 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 off-site 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 Emergency Coordinator to fall under the emergency classification level description for GENERAL EMERGENCY.
Explanation/Discussion/Definitions:
Definitions:
HOSTILE ACTION: An act toward Salem or Hope Creek 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 Salem or Hope Creek plants.HOSTAGE: A person(s) held as leverage against the station to ensure that demands will be met by the station.Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: HG6.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-212 PROJECTILE:
An object that impacts Salem and/or Hope Creek that could cause concern for its continued operability, reliability, or personnel safety.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 within approximately 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> (unless a different time is specified).
EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, HG2 Example EAL #1 Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: HG6.1 EALs for: Systems Malfunctions HCGS ECG -EAL Technical Bases EP-HC-1 11-213 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
S -System Malfunction 1 -Loss of AC Power Loss of all offsite AC power to vital buses for 15 minutes or longer 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown EAL# & Classification Level: SUI.1 -UNUSUAL EVENT EAL: Loss of all Offsite AC power to all 4.16 KV Vital Buses AND_ 15 minutes have elapsed (Note 3)Note 3: The Emergency Coordinator 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.Basis: Prolonged loss of off-site 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 vital buses.Fifteen minutes was selected as a threshold to exclude transient or momentary losses of offsite power.Explanation/Discussion/Definitions:
The AC power distribution is summarized in Attachment 2, page 2.Emergency Classification escalates to an ALERT under EAL SA1.1 based on AC power to 4.16 KV vital buses being reduced to a single source.Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: SU 1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11 -213 EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05 -SU1 Example EAL #1 2. 205415-A-8765 Sheet 1 500 kv Transmission Plan & Profiles 3. E-0001-0 sheet 1 Hope Creek Generating Station Single Line Diagram Station 4. UFSAR 8.1.2 Onsite Power Systems 5. HCGS Technical Specifications 3.8.1 AC Sources Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: SU 1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-213 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
S -System Malfunction 1 -Loss of AC Power AC power capability to vital buses reduced to a single power source for 15 minutes or longer such that any additional single failure would result in complete loss of AC power to vital buses 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown EAL# & Classification Level: SAI.1 -ALERT EAL: Loss of 4.16 KV Vital Bus Power Sources (Offsite and Onsite) which results in the availability of only one 4.16 KV Vital Bus Power Source (Offsite or Onsite)AND_ 15 minutes have elapsed (Note 3)Note 3: The Emergency Coordinator 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.Basis: The condition indicated by this EAL is the degradation of the offsite and onsite AC power systems such that any additional single failure would result in a complete loss of AC power to vital buses. This condition could occur due to a loss of off-site power with a concurrent failure of all but one emergency diesel generator to supply power to its vital bus. The subsequent loss of this single power source would escalate the event to a SITE AREA EMERGENCY in accordance with EAL SS1.1.Fifteen minutes was selected as a threshold to exclude transient or momentary losses of power.Explanation/Discussion/Definitions: "Availability" means the power source can be aligned to provide power to a vital bus within 15 minutes or is currently supplying power to at least one vital bus.Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: SA 1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-213 The availability of EDGs that have not been challenged to start during degradation of AC power sources to the 4.16 KV vital buses should be based on meeting Technical Specification action requirements for loss of offsite AC power sources.The AC power distribution is summarized in Attachment 2, page 2.This hot condition Alert EAL is equivalent to the cold condition Unusual Event EAL CU1.1.EAL Bases Reference(s):
Loss of Offsite Power/ Diesel Generator Malfunction
- 3. 205415-A-8765 Sheet 1 500 kv Transmission Plan & Profiles 4. E-0001-0 sheet 1 Hope Creek Generating Station Single Line Diagram Station 5. UFSAR 8.1.2 Onsite Power Systems 6. HCGS Technical Specifications 3.8.1 A.C. Sources Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: SA1.1 HCGS ECG -EAL Technical Bases I EP-HC-1 11-213 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
S -System Malfunction 1 -Loss of AC Power Loss of all offsite power and all onsite AC power to vital buses for 15 minutes or longer 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown EAL# & Classification Level: SS1.1 -SITE AREA EMERGENCY EAL: Loss of all Power (Onsite and Offsite) to all 4.16 KV Vital Buses AND_ 15 minutes have elapsed (Note 3)Note 3: The Emergency Coordinator 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.Basis: Loss of all AC power to vital buses compromises all plant safety systems requiring electric power including RHR, ECCS, and Station Service Water. Prolonged loss of all AC power to vital buses 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 EALs in Category F, Fission Product Barrier Degradation, or EAL SG1.1, "Prolonged Loss of All Offsite Power and Prolonged Loss of All Onsite AC Power." Explanation/Discussion/Definitions:
The intent of this EAL is to classify degraded AC power events that result in a loss of all offsite power sources 13.8 KV to the 4.16 KV vital buses along with a loss of all onsite power sources (EDGs).Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: SSI.1 HCGS ECG -EAL Technical Bases EP-HC-1 11 -213 The AC power distribution is summarized in Attachment 2, page 2.This hot condition Site Area Emergency EAL is equivalent to the cold condition Alert EAL CA1.1.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05 -SS1 Example EAL #1 2. HC.OP-AB.ZZ-01 35 (Q) Station Blackout / Loss of Offsite Power/ Diesel Generator Malfunction
- 3. 205415-A-8765 Sheet 1 500 kv Transmission Plan & Profiles 4. E-0001-0 sheet 1 Hope Creek Generating Station Single Line Diagram Station 5. UFSAR 8.1.2 Onsite Power Systems 6. HCGS Technical Specifications 3.8.1 AC Sources Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: SS1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-213 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: S -System Malfunction 1 -Loss of AC Power Prolonged loss of all offsite and all onsite AC power to vital buses 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown SGI.1 -GENERAL EMERGENCY EAL: Basis: Loss of all AC power to vital buses compromises all plant safety systems requiring electric power including RHR, ECCS, and Station Service Water. Prolonged loss of all AC power to vital buses will lead tb loss of Fuel Clad, RCS, and Containment, thus this event can escalate to a GENERAL EMERGENCY.
This EAL 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 vital 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.Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: SGI .1 HCGS ECG -EAL Technical Bases EP-HC-1 11-213 Explanation/Discussion/Definitions:
The AC power distribution is summarized in Attachment 2, page 2.Four hours is the station blackout coping time. Beyond the four hour window, RPV injection capability may no longer be available and degradation in core cooling will commence.Core Submergence is the preferred method of maintaining adequate core cooling. When RPV level decreases to below TAF (-161 in.), the ability to effectively remove decay heat is being challenged, and as such the Fuel Clad fission product barrier can no longer be considered intact. While the Emergency Operating Procedures provide contingencies to establish adequate core cooling when RPV level drops below TAF (Core Spray or Steam Cooling with or without injection), these actions are designed to be an alternative method of providing adequate core cooling while actions are taken to reestablish core submergence.
Sustained partial or total core uncovery can result in fuel damage and a significant release of fission products to the Reactor coolant. Sustained core uncovery can also result in a breach of the RPV due to core melt material interaction with the RPV.A Loss of Core Submergence will occur when the rate of inventory loss is greater than the rate of inventory makeup from high pressure injection sources. This condition can occur as the result of the following events/sequences: " A LOCA will cause RPV level to reach the Top of Active Fuel when the LOCA is the result of a large break (momentary core uncovery is expected to occur under this condition) or when the LOCA is due to a small or intermediate break in combination with an inability of high pressure injection sources to keep up with the leakrate." A loss of high pressure injection sources without the presence of a LOCA will also result in RPV level decreasing to TAF due to continued RPV Steam Flow without makeup.Either of these events/sequences results in a challenge to the Fuel Clad Barrier when RPV level CANNOT be restored AND maintained above the TAF due to core uncovery, hence classification at this threshold is appropriate.
However, for both these sequences, Low Pressure ECCS are designed to inject to the RPV as RPV Pressure decreases below the shutoff head of the pumps. RPV Depressurization will occur either due to the LOCA or Manual initiation of Emergency Depressurization when RPV level reaches -185 in., provided injection systems are available.
This will allow for restoration of RPV level and re-establishment of Core Submergence.
Failure of these systems to restore and maintain RPV level above -185 in. will result in a Loss of the Fuel Clad barrier per EAL FB1-L.Until the wide range RPV level (WR) indicator is downscale or becomes questionable, it should be used to assure RPV level is above TAF. Once WR is downscale, use compensated fuel zone indication (SPDS or graph) to assess RPV level above TAF and when compensated fuel zone level indication goes below TAF or becomes questionable, declare the EAL.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: SG1 .1 HCGS ECG -EAL Technical Bases EP-HC-1 11-213 If all RPV level instrumentation is lost, it is assumed RPV level may be below the top of active fuel and a General Emergency classification is warranted under this EAL.EAL Bases Reference(s):
Loss of Offsite Power/ Diesel Generator Malfunction
- 3. 205415-A-8765 Sheet 1 500 kv Transmission Plan & Profiles 4. E-0001-0 sheet 1 Hope Creek Generating Station Single Line Diagram Station 5. UFSAR 8.1.2 Onsite Power Systems 6. HCGS Technical Specifications 3.8.1 AC Sources 7. HC.OP-EO.ZZ-01 01(Q)-FC RPV Control 8. HC.OP-EO.ZZ-0101A(Q)-FC ATWS -RPV Control Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: SG 1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-213 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: SG 1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-214 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
S -System Malfunction 2 -Loss of DC Power Loss of all vital DC power for 15 minutes or longer 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown EAL# & Classification Level: SS2.1 -SITE AREA EMERGENCY EAL:< 108 V DC bus voltage indication on all Vital 125 V DC Buses AND_ 15 minutes have elapsed (Note 3)Note 3: The Emergency Coordinator 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.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 primary 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 EALs in Category R, Abnormal Rad Levels/Rad Effluent, or Category F, Fission Product Barrier Degradation.
Explanation/Discussion/Definitions:
Per Technical Specifications, 108 VDC is the minimum voltage required for operability of the Class I E 125 VDC buses following a battery discharge test. Although continued equipment operation may occur with degraded voltage, this value signifies the minimum operable voltage allowed.125 VDC Power Channels A-D provide control power to Engineered Safety Features actuation, diesel generator auxiliaries, plant alarm and indication circuits, as well as the control power for the associated loads. If 125 VDC power is lost for an extended period of time Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: SS2.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-214 (greater than 15 minutes) critical plant functions such as 4.16 KV breaker controls, CS and RHR pump controls required to maintain safe plant conditions may not operate, and core uncovery with subsequent Reactor Coolant System (RCS) and Primary Containment failure might occur.Loss of ADS may create a loss of low pressure ECCS availability due to the potential inability to depressurize the reactor. In addition, loss of these buses will eventually lead to MSIV closure and reactor scram due to the loss of the Primary Containment Instrument Gas (PCIG).Subsequent to MSIV closure, much of the equipment noted above will be required for plant stabilization and shutdown.A sustained loss of 125 V DC power will threaten the ability to remove heat from the reactor core and from the primary containment.
SRVs will remain operable in the relief mode and the heat addition to the primary containment could result in a loss of the Primary Containment as a fission product release barrier.Loss of all Vital 1 E 125 V DC power will also render HPCI and RCIC inoperable for automatic initiation, and from the Control Room due to loss of control power.Class 1 E 125 VDC battery bank capacities are as follows: Channel Switchgear Battery Capacity (design 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />)A 10D410 1AD411 1885 AH at 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> B 10D420 1BD411 1885 AH at 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> C 1 0D430 1 CD41 1 1885 AH at 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> D 10D440 1DD411 1885 AH at 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> C 10D436 1CD447 577 AH at 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> D 1 0D446 1 DD447 577 AH at 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> In OPCONs 1, 2, or 3, the loss of any single channel 125V DC power source would require the channel to be restored within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> or the unit placed in at least Hot Shutdown within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in Cold Shutdown within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.This Site Area Emergency EAL is the hot condition equivalent of the cold condition loss of DC power Unusual Event EAL CU2.1.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: SS2.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-214 EAL Bases Reference(s):
- 3. HC.OP-AB.ZZ-0135 (Q), Station Blackout / Loss of Offsite Power / Diesel Generator Malfunction
- 4. HC.OP-EO.ZZ-0101(Q)-FC RPV Control 5. HC.OP-EO.ZZ-0102(Q)-FC Primary Containment Control 6. HC.OP-EO.ZZ-0202(Q)-FC Emergency Depressurization
- 7. HCGS Technical Specifications Section 3/4.8.2.1, 3/4.8.3.1.b; DC Sources -Operating 8. UFSAR 8.3.2 DC Power Systems Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: SS2.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-214 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: SS2.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-215 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
S -System Malfunction 3 -ATWS / Criticality Inadvertent Criticality 3 -Hot Shutdown EAL# & Classification Level: SU3.1 -UNUSUAL EVENT EAL: UNPLANNED sustained positive period observed on nuclear instrumentation Basis: This EAL addresses inadvertent criticality events. This EAL indicates a potential degradation of the level of safety of the plant, warranting a UE classification.
This EAL excludes inadvertent criticalities that occur during planned reactivity changes associated with reactor startups (e.g., criticality earlier than estimated).
Escalation would be by the Fission Product Barrier Table, as appropriate to the operating mode at the time of the event.Explanation/Discussion/Definitions:
The term "sustained" is used in order to allow exclusion of expected short term positive periods from planned control rod movements.
These short term positive periods are the result of the increase in neutron population due to subcritical multiplication.
Positive reactor period may be identified by: " SRM period indicators and recorders R602A and B (green pens) on panel 10C650C" Overhead Annunciator C3-D1, SRM PERIOD" Computer points B3001, B3002, B3003 and B3004 This EAL is the hot condition equivalent of the cold condition EAL CU6.1.Definitions:
UNPLANNED:
A parameter change or an event that is not the result of an intended evolution and requires corrective or mitigative actions.Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: SU3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-215 EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, SU8 Example EAL #1 2. Technical Specifications 3.3.7.6 Source Range Monitors 3. HC.OP-ST.SE-0005(Q)
SRM Channel Count Rate Surveillance
- 4. HC.OP-AR.ZZ-0009 Overhead Annunciator Window Box C3 Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: SU3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-215 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
S -System Malfunction 3 -ATWS / Criticality Automatic scram fails to shut down the reactor and the manual actions taken from the reactor control console are successful in shutting down the reactor 1 -Power Operations, 2 -Startup EAL# & Classification Level: SA3.1 -ALERT EAL: An automatic scram failed to shut down the reactor AND Manual scram actions taken at the reactor control console (mode switch, manual scram pushbuttons, manual ARI actuation) successfully shut down the reactor as indicated by reactor power _ 4%Basis: The reactor should be considered shutdown when it is producing less heat than the maximum decay heat load for which the safety systems are designed (4% power). This power level is the APRM downscale trip setpoint.Manual scram 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.Insertion of a scram signal via Mode Switch to Shutdown or activation of the RPS Manual Scram Pushbuttons on the Control Room console is considered automatic scram inputs into RPS. A failure to scram from either operator inserted scram actions would meet the criteria for this EAL even if no other scram inputs were present. However, an inability to physically place the mode switch in the "Shutdown" position (i.e., broken key) does not constitute a RPS failure, since the RPS logic has not failed.This condition indicates failure of the automatic protection system to scram 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 Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: SA3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-215 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 shut down the reactor, the event would escalate to a SITE AREA EMERGENCY.
Explanation/Discussion/Definitions:
The Reactor Protection System (RPS) is designed to function to shut down the reactor (either manually or automatically).
The system is "fail safe", that is it de-energizes to function.
An Anticipated Transient Without Scram (ATWS) event can be caused either by a failure of RPS (electrical/pneumatic failure) or a failure of the Control Rod Drive System to permit the control rods to insert (hydraulic failure).The Alternate Rod Insertion (ARI) function of the Redundant Reactivity Control System (RRCS) provides an automatic backup function for an electrical/pneumatic failure of RPS. A successful scram due to ARI following a failure of RPS would still be classified under this EAL because of the potentially serious consequences of an RPS failure.The ALERT threshold is set so that unsuccessful manual RPS scrams from the Control Room, as well as unsuccessful automatic RPS scrams would be classified at the ALERT level. This will cover those situations, in which a manual RPS scram is attempted in anticipation of a continually degrading plant condition (i.e., degrading Main Condenser Vacuum). In addition, this threshold will also address those situations where a manual scram is required by procedure (i.e., stuck open SRV, Main Steam Line Hi-Hi Radiation, Dual Reactor Recirc Pump trip, Power Oscillations) and the manual scram is not successful.
In either case, ALERT declaration is appropriate when the RPS fails to perform its intended design function.The APRM downscale trip setpoint is 4%. It also approximates the decay heat which the shutdown systems were designed to remove and is indicative of a condition requiring immediate response to prevent subsequent core damage. At or below the APRM downscale trip setpoint, plant response will be similar to that observed during a normal shutdown.EAL Bases Reference(s):
1.0 Definitions
- 3. Technical Specifications SL/LSSS 2.1/2.2 Safety Limits/ Limited Safety System Settings 4. Technical Specifications LCO 3/4.1 Reactor Control Systems 5. Technical Specifications LCO 3/4.3 Instrumentation
- 6. HC.OP-AB.IC-0003(Q)
Reactor Protection System 7. HC.OP-EO.ZZ-0101A(Q)-FC ATWS -RPV Control Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: SA3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-215 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
S -System Malfunction 3 -ATWS / Criticality Automatic scram fails to shut down the reactor and manual actions taken from the reactor control console are not successful in shutting down the reactor.1 -Power Operations, 2 -Startup EAL# & Classification Level: SS3.1 -SITE AREA EMERGENCY EAL: An automatic scram failed to shut down the reactor AND Manual scram actions taken at the reactor control console (mode switch, manual scram pushbuttons, manual ARI actuation) do NOT shut down the reactor as indicated by reactor power > 4%Basis: The reactor should be considered shutdown when it is producing less heat than the maximum decay heat load for which the safety systems are designed (4% power). This power level is the APRM downscale trip setpoint.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 scram actions taken at the reactor control console are any set of actions by the reactor operator(s) at which causes or should cause control rods to be rapidly inserted into the core and shuts down the reactor.Insertion of a scram signal via Mode Switch to Shutdown or activation of the RPS Manual Scram Pushbuttons on the Control Room console are considered automatic scram inputs into RPS. A failure to scram from either operator inserted scram actions would meet the criteria for this EAL even if no other scram inputs were present. However, an inability to physically place the mode switch in the "Shutdown" position (i.e., broken key) does not constitute a RPS failure, since the RPS logic has not failed.Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: SS3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-215 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.Explanation/Discussion/Definitions:
This EAL addresses any automatic reactor scram signal followed by a manual scram that fails to shut down the reactor to an extent the reactor is producing energy in excess of the heat load for which the safety systems were designed.For the purposes of emergency classification at the SITE AREA EMERGENCY level, successful manual scram actions are those which can be quickly performed from the reactor control console (i.e., mode switch, manual scram pushbuttons and manual ARI actuation).
Manual actions to shut down the Reactor achieved by use of the alternate control rod insertion methods of EOP-101A Step RC/Q-21 would still be classified under this EAL and do not constitute a successful manual scram.A manual scram signal via Mode Switch to Shutdown and/or activation of the RPS Manual Scram Pushbuttons on the Control Room console are considered an automatic input into RPS and a Failure to Scram making this EAL applicable.
However, an inability to physically place the mode switch in the "Shutdown" position (i.e., broken key) does not constitute a RPS failure, since the RPS logic has not failed.The APRM downscale trip setpoint is 4%. It also approximates the decay heat which the shutdown systems were designed to remove and is indicative of a condition requiring immediate response to prevent subsequent core damage. At or below the APRM downscale trip setpoint, plant response will be similar to that observed during a normal shutdown.Escalation of this event to a GENERAL EMERGENCY would be under EAL SG3.1 or Emergency Coordinator judgment.Definitions:
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 within approximately 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> (unless a different time is specified).
EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, SS2 Example EAL #1 2. HC.OP-EO.ZZ-0101A(Q)-FC ATWS -RPV Control Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: SS3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11 -215 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: EAL: S -System Malfunction 3 -ATWS / Criticality Automatic scram and all manual actions fail to shut down the reactor and indication of an extreme challenge to the ability to cool the core exists 1 -Power Operations, 2 -Startup SG3.1 -GENERAL EMERGENCY An automatic scram failed to shut down the reactor AND All manual actions do NOT shut down the reactor as indicated by reactor power > 4%AND EITHER of the following:
0 RPV level CANNOT be restored and maintained above -185 in.4 HCTL (EOP Curve SPT-P) is exceeded Basis: The reactor should be considered shutdown when it is producing less heat than the maximum decay heat load for which the safety systems are designed (4% power). This power level is the APRM downscale trip setpoint.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 offsite intervention time.Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: SG3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-215 Explanation/Discussion/Definitions:
This EAL addresses the following: " Any automatic reactor scram signal followed by a manual scram that fails to shut down the reactor to an extent the reactor is producing energy in excess of the heat load for which the safety systems were designed (EAL SS3.1), and" Indications that either core cooling is extremely challenged or heat removal is extremely challenged.
The Alternate Rod Insertion (ARI) function of the Redundant Reactivity Control System (RRCS) provides an automatic backup function for an electrical/pneumatic failure of RPS. A failure of ARI and alternate control rod insertion methods of EOP-101A to reduce Reactor Power to _< 4% following a failure of the RPS is classified under this EAL because of the potentially serious consequences of a failure of RPS and ARI to reduce Reactor Power.Reactor shutdown achieved by use of the alternate control rod insertion methods of EOP-101A Step RC/Q-21 is also credited as a successful manual action provided reactor power can be reduced below the APRM downscale trip setpoint before indications of an extreme challenge to either core cooling or heat removal exist.The Reactor Protection System (RPS) is designed to function to shut down the reactor (either manually or automatically).
The system is "fail safe", that is it de-energizes to function.
An Anticipated Transient Without Scram (ATWS) event can be caused either by a failure of RPS (electrical/pneumatic failure) or a failure of the Control Rod Drive System to permit the control rods to insert (hydraulic failure).An extreme challenge to the ability to cool the core occurs when RPV water level cannot be maintained above -185". Although this is below the Top of Active Fuel (Loss of Core Submergence), maintaining Reactor water level above -185" will ensure sufficient steam flow from the covered portion of the core to preclude fuel clad temperatures in the uncovered portion of the core from exceeding 15000F. This is referred to as the Minimum Steam Cooling RPV Water Level (MSCRWL).
Inability to maintain this level for an extended period of time could be precursors of a core melt sequence.An extreme challenge to the primary containment occurs when heat cannot be removed from the primary containment resulting in elevated suppression pool water temperature.
The Heat Capacity Temperature Limit (HCTL) is the highest suppression pool water temperature from which a Blowdown will not raise suppression chamber pressure above the Primary Containment Pressure Limit (PCPL) of 65 psig before the rate of energy transfer from the RPV to the primary containment is within the capacity of the primary containment vent. When the PCPL is challenged, primary containment venting will be required even if offsite radioactivity release rate limits will be exceeded.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: SG3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-215 The HCTL is a function of RPV pressure and suppression pool water temperature and is a measure of the maximum heat load, which the primary containment can withstand.
Plant parameters in excess of the HCTL could be precursor of primary containment failure. The Heat Capacity Temperature Limit is given in Curve SPT-P of HC.OP-EO.ZZ-01 02(Q), Primary Containment Control.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, SG2 Example EAL #1 2. HC.OP-EO.ZZ-0101A(Q)-FC ATWS -RPV Control 3. HC.OP-EO.ZZ-0206A(Q)-FC ATWS -RPV Flooding 4. HC.OP-EO.ZZ-0102(Q)-FC Primary Containment Control Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: SG3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-215 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: SG3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-216 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
S -System Malfunction 4 -Inability to Reach or Maintain Shutdown Conditions Inability to reach required shutdown within Technical Specification limits 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown EAL# & Classification Level: SU4.1 -UNUSUAL EVENT EAL: Plant is NOT brought to required Operational Condition (OPCON) within Technical Specifications LCO action statement time Basis: Limiting Conditions of Operation (LCOs) require the plant to be brought to a required Operational Condition 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 UE is required when the plant is not brought to the required Operational Condition within the allowable action statement time in the Technical Specifications.
Declaration of a UE 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.Explanation/Discussion/Definitions:
Depending on the circumstances, this may or may not be a precursor to a more severe condition.
A shutdown required by the Technical Specifications requires a report under 10 CFR 50.72 (b) Non-emergency events. The plant is within its safety envelope when actions are completed within the allowable Action Statement time in the T/S. If the times specified within the Action Statements are not met, the plant may be in an unsafe condition.
EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, SU2 Example EAL #1 2. HCGS Technical Specifications Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: SU4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-216 This page intentionally blank.Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: SU4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-217 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
S -System Malfunction 5 -Instrumentation UNPLANNED loss of safety system annunciation or indication in the Control Room for 15 minutes or longer 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown EAL# & Classification Level: SU5.1 -UNUSUAL EVENT EAL: UNPLANNED loss of > approximately 75% of Control Room Overhead Annunciators for_ 15 minutes (Note 3)OR UNPLANNED loss of > approximately 75% of Control Room Indications associated with the following safety functions for > 15 minutes (Note 3):* Reactivity Control* RCS Inventory* Decay Heat Removal* Fission Product Barriers Note 3: The Emergency Coordinator 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.Basis: This EAL 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.
Recognition of the availability of computer based indication equipment is considered."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 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 Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: SU5.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-217 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.
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 UE is based on SU4.1 "Inability to Reach Required Shutdown Within Technical Specification Limits." Fifteen minutes was selected as a threshold to exclude transient or momentary power losses.This UE will be escalated to an ALERT based on a concurrent loss of compensatory indications or a SIGNIFICANT TRANSIENT is occurring during a loss of annunciators/indications.
Explanation/Discussion/Definitions:
This EAL recognizes the difficulty associated with monitoring changing plant conditions without the use of a major portion of the annunciation or indication equipment.
An UNPLANNED loss of most or all Control Room Overhead Annunciators or other key control room indication systems without a plant transient in Operational Conditions 1, 2, or 3 for _ 15 minutes warrants a heightened awareness by Control Room Operators.
Quantification of >75% is left to the discretion of the Shift Manager (SM) and is considered approximately 75%.It is not intended that a detailed count be performed but that a rough approximation be used to determine the severity of the loss.This EAL is not required in Operational Conditions 4 or 5 due to the limited number of safety systems required for operation.
In judging the severity of the annunciator and loss other key Control Room indication systems, consideration should be given to those annunciators needed by the operating staff for operation in abnormal and emergency operating procedures.
This includes the ability to shutdown the reactor and keeping it shutdown, ability to cool the core, ability to maintain core inventory, ability to maintain a heat sink, and ability to monitor primary containment parameters.
For short-term loss of OHAs and other key Control Room indication systems (< 15 minutes)reportable level (RAL) #11.7.1 .c should be considered.
Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: SU5.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-217 Definitions:
UNPLANNED:
a parameter change or an event that is not the result of an intended evolution and requires corrective or mitigative actions. An UNPLANNED loss of annunciators and loss other key control room indication systems excludes scheduled maintenance and testing activities.
SIGNIFICANT TRANSIENT:
An UNPLANNED event based on EC judgment, but includes as a minimum any one of the following:
(1) Reactor SCRAM, (2) Electrical Load Rejection
> 22%, (3) Thermal Power Reduction
> 25%, (4) ECCS Injection, or (5)Thermal Power Oscillation
> 10%.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, SU3 Example EAL #1 2. HC.OP.AB.MISC-0002 (Q) CRIDS / Overhead Annunciators
/ PPC Computer 3. HC.OP-AR.ZZ-001 1 Window C6-C5, SPDS System Trouble 4. HCGS Technical Specifications 3/4.3, Instrumentation Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: SU5.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-217 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: SU5.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-217 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: EAL: S -System Malfunction 5 -Instrumentation 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 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown SA5.1 -ALERT UNPLANNED loss of > approximately 75% of Control Room Overhead Annunciators for> 15 minutes (Note 3)OR UNPLANNED loss of > approximately 75% of Control Room Indications associated with the following safety functions for :_ 15 minutes (Note 3):* Reactivity Control* RCS Inventory* Decay Heat Removal" Fission Product Barriers AND EITHER of the following:
- A SIGNIFICANT TRANSIENT is in progress, Table S-1* Compensatory indications are NOT available (PPC, CRIDS and SPDS)Note 3: The Emergency Coordinator 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.Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: SA5.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-217 Table S-1 SIGNIFICANT TRANSIENTS" Reactor scram" Thermal Power Reduction
> 25%" Electrical Load rejection
> 22%" ECCS injection* Thermal power oscillations
> 10%Basis: This EAL 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."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 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 UE is based on SU4.1 "Inability to Reach Required Shutdown Within Technical Specification Limits.""Compensatory indications" in this context includes computer based information such as the Plant Process Computer System (PPC), Control Room Integrated Display System (CRIDS)and Safety Parameter Display System (SPDS). If both a major portion of the annunciation system and all computer monitoring are unavailable, the ALERT is required., Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: SA5.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-217 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.
Explanation/Discussion/Definitions:
This EAL recognizes the difficulty associated with monitoring changing plant conditions without the use of a major portion of the annunciation or indication equipment.
An UNPLANNED loss of most or all Control Room Overhead Annunciators or other key control room indication systems without a plant transient in Operational Conditions 1, 2, or 3 for _ 15 minutes warrants a heightened awareness by Control Room Operators.
Quantification of >75% is left to the discretion of the Shift Manager (SM) and is considered approximately 75%.It is not intended that a detailed count be performed, but that a rough approximation be used to determine the severity of the loss. An UNPLANNED loss of most or all Control Room Overhead Annunciators or other key Control Room indication systems with SIGNIFICANT TRANSIENT in Operational Conditions 1, 2, or 3 also warrants a heightened awareness by Control Room Operators.
In this case, the 15 minute criterion is not required to meet the EAL as expeditious notification is warranted.
UNPLANNED loss of annunciators or indicators excludes scheduled maintenance and testing activities.
The 15 minutes clock starts when the annunciators or other key Control Room indication systems have been lost, or are determined to have been lost. If upon time of discovery it is determined that the annunciators have been lost for at least 15 minutes prior to discovery, classification should be made under this EAL regardless of time required for restoration.
SIGNIFICANT TRANSIENTS are listed in Table S-1.The Plant Process Computer System (PPC), Control Room Integrated Display System (CRIDS) and Safety Parameter Display System (SPDS) serve as redundant indicators which may be utilized as compensatory measures in lieu of the Control Room Overhead Annunciators and Control Room indicators associated with safety functions.
The judgment of the Shift Manager should be used as the threshold for determining the severity of the plant conditions.
In judging the severity of the annunciator and loss of other key Control Room indication systems, consideration should be given to those annunciators needed by the operating staff for operation in abnormal and emergency operating procedures.
This includes the ability to shut down the reactor and keeping it shutdown, ability to cool the core, ability to maintain core inventory, ability to maintain a heat sink, and ability to monitor primary containment parameters.
If the operating crew cannot monitor the transient in progress, the ALERT escalates to a SITE AREA EMERGENCY under EAL SS5.1.Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: SA5.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-217 Definitions:
UNPLANNED:
a parameter change or an event that is not the result of an intended evolution and requires corrective or mitigative actions. An UNPLANNED loss of annunciators and loss other key control room indication systems excludes scheduled maintenance and testing activities.
SIGNIFICANT TRANSIENT:
An UNPLANNED event based on EC judgment, but includes as a minimum any one of the following:
(1) Reactor SCRAM, (2) Electrical Load Rejection
> 22%, (3) Thermal Power Reduction
> 25%, (4) ECCS Injection, or (5)Thermal Power Oscillation
> 10%.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, SA5 Example EAL #1 2. UFSAR Section 1.2.4.3.6 Turbine Bypass System and Pressure Control System 3. HC.OP,AB.MISC-0002 (Q) CRIDS / Overhead Annunciators
/ PPC Computer 4. HC.OP-AR.ZZ-001 1 Window C6-C5, SPDS System Trouble 5. HC.OP-AR.ZZ-001 1 Window C6-B5, BOP Computer Trouble 6. HCGS Technical Specifications 3/4.3, Instrumentation Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: SA5.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-217 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
S -System Malfunction 5 -Instrumentation Inability to monitor a SIGNIFICANT TRANSIENT in progress 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown EAL# & Classification Level: SS5.1 -SITE AREA EMERGENCY EAL: UNPLANNED loss of > approximately 75% of Control Room Overhead Annunciators for> 15 minutes (Note 3)OR UNPLANNED loss of > approximately 75% of Control Room Indications associated with the following safety functions for > 15 minutes (Note 3): " Reactivity Control* RCS Inventory* Decay Heat Removal* Fission Product Barriers AND A SIGNIFICANT TRANSIENT is in progress, Table S-1 AND Compensatory indications are NOT available (PPC, CRIDS and SPDS)Note 3: The Emergency Coordinator 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.Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: SS5.1 HCGS ECG -EAL Technical Bases EP-HC-1 11 -217 Table S-1 SIGNIFICANT TRANSIENTS
- Reactor scram* Thermal Power Reduction
> 25%" Electrical Load rejection
> 22%* ECCS injection* Thermal power oscillations
> 10%Basis: This EAL 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 a factor.Quantification is arbitrary, however, it is estimated that if approximately 75% of the 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 UE is based on SU4.1 "Inability to Reach Required Shutdown 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.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: SS5.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-217 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."Compensatory indications" in this context includes computer based information such as Plant Process Computer System (PPC), Control Room Integrated Display System (CRIDS) and Safety Parameter Display System (SPDS).Fifteen minutes was selected as a threshold to exclude transient or momentary power losses.Explanation/Discussion/Definitions:
This EAL recognizes the difficulty associated with monitoring changing plant conditions without the use of a major portion of the annunciation or indication equipment.
An UNPLANNED loss of most or all Control Room Overhead Annunciators or other key control room indication systems without a plant transient in Operational Conditions 1, 2, or 3 for _> 15 minutes warrants a heightened awareness by Control Room Operators.
Quantification of >75% is left to the discretion of the Shift Manager (SM) and is considered approximately 75%.It is not intended that a detailed count be performed, but that a rough approximation be used to determine the severity of the loss. An UNPLANNED loss of most or all Control Room Overhead Annunciators or other key Control Room indication systems with SIGNIFICANT TRANSIENT in Operational Conditions 1, 2, or 3 also warrants a heightened awareness by Control Room Operators.
In this case, the 15 minute criterion is not required to meet the EAL as expeditious notification is warranted.
UNPLANNED loss of annunciators or indicators excludes scheduled maintenance and testing activities.
The 15 minutes clock starts when the annunciators or other key Control Room indication systems have been lost, or are determined to have been lost. If upon time of discovery it is determined that the annunciators have been lost for at least 15 minutes prior to discovery, classification should be made under this EAL regardless of time required for restoration.
SIGNIFICANT TRANSIENTS are listed in Table S-1.The PPC, CRIDS and SPDS serve as redundant indicators which may be utilized as compensatory measures in lieu of the Control Room Overhead Annunciators and Control Room indicators associated with safety functions.
The judgment of the Shift Manager should be used as the threshold for determining the severity of the plant conditions.
Definitions:
UNPLANNED:
a parameter change or an event that is not the result of an intended evolution and requires corrective or mitigative actions. An UNPLANNED loss of annunciators and loss other key control room indication systems excludes scheduled maintenance and testing activities.
Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: SS5.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-217 SIGNIFICANT TRANSIENT:
An UNPLANNED event based on EC judgment, but includes as a minimum any one of the following:
(1) Reactor SCRAM, (2) Electrical Load Rejection
> 22%, (3) Thermal Power Reduction
> 25%, (4) ECCS Injection, or (5)Thermal Power Oscillation
> 10%.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, SS6 Example EAL #1 2. UFSAR Section 1.2.4.3.6 Turbine Bypass Systems and Pressure Control System 3. HC.OP.AB.MISC-0002 (Q) CRIDS / Overhead Annunciators
/ PPC Computer 4. HC.OP-AR.ZZ-001 1 Window C6-C5, SPDS System Trouble 5. HC.OP-AR.ZZ-001 1 Window C6-B5, BOP Computer Trouble 6. HCGS Technical Specifications 3/4.3, Instrumentation Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: SS5.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-218 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: EAL: S -System Malfunction 6 -Communications Loss of all onsite or offsite communications capabilities 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown SU6.1 -UNUSUAL EVENT Loss of all Table S-2 Onsite communication methods affecting the ability to perform routine operations OR Loss of all Table S-2 Offsite communication methods affecting the ability to perform offsite notifications Table S-2 Communications Systems System Onsite Offsite Direct Inward Dial System (DID) X X Station Page System (Gaitronics)
X Station Radio System X Nuclear Emergency Telephone X System (NETS)Centrex Phone System (ESSX) X NRC (ENS) X Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: SU6.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-218 Basis: The purpose of this EAL 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 off-site authorities.
The availability of one method of ordinary off-site 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.Explanation/Discussion/Definitions:
Onsite and offsite communications include one or more of the systems listed in Table S-2.Direct Inward Dial System (DID)Direct Inward Dial (DID) system is named for the dominant feature of the commercial telephone service provided by the local telephone company for the site. DID allows station telephones to be extensions or tied lines of the same systems. These exchanges can take advantage of backup power supplies provided to the stations, and may use either PSEG microwave, commercial telephone system microwave, or buried cable transmission systems to maintain external communications.
This commercial telephone service is available as an additional backup for the NETS and Centrex/ESSX 1 system.Station Page System (Gaitronics)
Gaitronics is a completely transistorized voice communication system with five voice channels: one page and five party. The system is designed for use in extreme environmental conditions such as dust, moisture, heat and noise. The system consists of handsets, speakers and their associated amplifiers.
The power for this system is 120 volts AC from an inverted DC source to provide reliable communications during an emergency.
Station Radio System The Operations and Fire Protection Department UHF radio system is a multi-frequency system used routinely by both station Operations Departments and the Fire Protection Department.
When an emergency event is declared, these radio frequencies serve both station Operations Support Centers (OSC).Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: SU6.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-218 Nuclear Emergency Telephone System (NETS)The Nuclear Emergency Telecommunications System (NETS) is a privately controlled, self-contained telephone exchange that operates as a closed system, not accessible from other phone exchanges.
This feature allows the system to be dedicated to emergency response use. The system may use PSEG microwave, commercial telephone system microwave, fiber optics, or buried cable transmission as needed. The exchange switching equipment is maintained at the Environmental
& Energy Resource Center (EERC). As an independent system with an uninterruptible power supply, it may operate with or without local phone service or external power.Centrex Phone System (ESSX)The Centrex/Electronic Switch System Exchange 1 (CentrexiESSX
- 1) is also a privately controlled exchange, which PSEG operates with its own microwave signal system. This system is also independent of local phone service, since each circuit is independently wired.The microwave signal is generated from corporate facilities in Newark, NJ, separated from any local effects of weather or telephone use. The exchange is accessible from other exchanges, but circuits are located only in PSEG facilities.
It is considered the primary backup for the NETS system.NRC (ENS)The Emergency Notification System (ENS) is a dedicated communications system with the NRC, which is part of the Federal Telecommunications System (FTS) and consists of direct lines to the NRC. FTS lines are used to provide general accident information.
These telephones are installed in the Control Room, TSC, and the EOF.This EAL is the hot condition equivalent of the cold condition EAL CU5.1.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, SU6 Example EAL #1, #2 2. PSEG Nuclear Emergency Plan, Section 7 Communications
- 3. UFSAR 9.5.2 Communications Systems Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: SU6.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-218 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: SU6.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-219 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
S -System Malfunction 7 -Fuel Clad Degradation Fuel clad degradation 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown EAL# & Classification Level: SU7.1 -UNUSUAL EVENT EAL: VALID Offgas Pretreatment Radiation Monitor (9RX621/9RX622) high alarm Basis: This EAL 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.Escalation of this EAL to the ALERT level is via the Fission Product Barriers.This threshold addresses Offgas radiation monitor readings that provide indication of a degradation of fuel clad integrity.
Explanation/Discussion/Definitions:
A VALID Offgas Pretreatment Radiation Monitor High alarm is indicative of a degradation of the fuel clad, and is a precursor of a more serious problem. The alarm is set at 2.2E+04 mR/hr, which ensures that the alarm will actuate prior to exceeding the Technical Specification Offgas System Noble Gas Effluent Limit of 3.3E5 pCi/sec.Classification should be based on an Offgas Pretreatment Radiation Monitor High Alarm actuating specifically due to fuel clad degradation, thus precluding unwarranted UNUSUAL EVENT declaration as the result of a resin / chemical intrusion transient, HWCI System malfunction, etc. UNUSUAL EVENT declaration is warranted only when actual fuel damage has occurred.
Obtaining timely (within 90 minutes) confirmatory samples may be required to make this determination if the High Alarm condition is suspected to not be related to fuel clad degradation (per Abnormal Operating Procedures).
Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: SU7.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-219 The Offgas Pretreatment Radiation Monitors (9RX621 / 9RX622) monitor gamma radiation levels attributable to the non-condensable fission product gases produced in the reactor and transported with steam through the turbine to the condenser.
These instruments take a sample from the sample tap between the fourth and fifth holdup pipe of the Offgas system.Restricting the gross radioactivity from the Main Condenser provides reasonable assurance that the whole body dose to an individual at the exclusion area boundary will not exceed a small fraction of the limits of 10 CFR 100 in the event this effluent is inadvertently discharged directly to the environment without treatment.
Definitions:
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 indicator's operability, the condition's existence, or the report's accuracy is removed. Implicit in this definition is the need for timely assessment.
EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, SU4 Example EAL #1 2. HC.OP-AR.ZZ-001 1(Q) Overhead Annunciator Window Box C6 3. HCGS Technical Specification Table 3.3.7.1-1 Radiation Monitoring Instrumentation
- 4. HCGS Technical Specification 3.11.2.7 Radioactive Effluents
-Main Condenser 5. HC.OP-AB.RPV-0008(Q)
Reactor Coolant Activity 6. HC.RP-AR.SP-0001(Q)
Radiation Monitoring System Alarm Response 7. OE-6144 Resin Intrusion, Hope Creek Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: SU7.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-219 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: S -System Malfunction 7 -Fuel Clad Degradation Fuel clad degradation 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown SU7.2 -UNUSUAL EVENT EAL: Coolant activity > 4 pCi/gm Dose Equivalent 1-131 Basis: This EAL 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.Escalation of this EAL to the ALERT level is via the Fission Product Barriers.This threshold addresses coolant samples exceeding coolant technical specifications for transient iodine spiking limits.Explanation/Discussion/Definitions:
A Reactor Coolant sample analysis with specific activity in excess of the Technical Specification limit of 4 pCi/gm Dose Equivalent Iodine-1 31 (DEl-1 31) is indicative of a degradation of the fuel clad, and is a precursor of more serious problems.
This activity level is chosen instead of the 0.2 pCi/gm DEl-1 31 Technical Specification limit (under which operation is allowed to continue for up to 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />) to accommodate short duration Iodine spikes following changes in thermal power.The Technical Specification limit on Reactor Coolant activity ensures that the 2 hour2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> thyroid and whole body doses resulting from a Main Steam Line failure outside the primary containment during steady state operation will not exceed a small fraction of the 10 CFR 100 limits.This limit accommodates Iodine spiking, which frequently occurs following shutdowns, startups, rapid power changes and coolant depressurization.
Iodine spikes are characterized by a rapid increase in Reactor Coolant Iodine concentration by as much as three orders of magnitude followed by a return to pre-spike concentrations.
This spiking is a temporary excursion and is not caused by a sudden fuel failure and should not be classified under this EAL.Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: SU7.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-219 Reactor Coolant Sample Activity of > 4 pCi/gm DEI- 131 can only occur as the result of fuel clad degradation and not as a result of Iodine spiking, resin / chemical intrusion transient, HWCI System malfunction, etc. UNUSUAL EVENT declaration is warranted only when actual fuel clad degradation has occurred.The Technical Specification limit of > 100/E pCi/gm is excluded from this EAL because this limit does not include Iodine Activity.Escalation to an ALERT or higher emergency classification occurs if a sample analysis of reactor coolant activity exceeds 300 pCi/gm DEI-131 via EAL FB3-L.EAL Bases Reference(s):
3.4.5 Specific
Activity 3. HC.OP-AB.RPV-0008(Q)
Reactor Coolant Activity Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: SU7.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-220 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: EAL: S -System Malfunction 8 -RCS Leakage RCS Leakage 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown SU8.1 -UNUSUAL EVENT UNIDENTIFIED LEAKAGE or PRESSURE BOUNDARY LEAKAGE > 10 gpm (Using 10 minute average) (Note 6)OR IDENTIFIED LEAKAGE > 25 gpm (Averaged over any 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> period) (Note 6)Note 6: See the Fission Product Barrier Table for possible escalation above the UNUSUAL EVENT due to RCS Leakage Basis: This EAL is included as a UE 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 EAL. However, a relief valve that operates and fails to close per design should be considered applicable to this EAL 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. In either case, escalation of this EAL to the ALERT level is via Fission Product Barrier Degradation EALs.Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: SU8.1 HCGS ECG -EAL Technical Bases EP-HC-111-220 Explanation/Discussion/Definitions:
Allowable leakage rates from the RCS are based on predicted and experimentally observed behavior of cracks in pipes. Utilizing the leak before break methodology, it is anticipated that there will be indication(s) of minor RCS boundary leakage prior to a fault escalating to a major leak or a system rupture. Detection of low levels of leakage while pressurized allows for implementation of mitigative actions and permits monitoring for catastrophic failure or rupture precursors.
The limit for RCS UNIDENTIFIED LEAKAGE and PRESSURE BOUNDARY LEAKAGE is set to a lower value than IDENTIFIED LEAKAGE due to concern over break propagation resulting from a small break that could potentially lead to a significantly larger loss of inventory.
RCS leakage is detected by monitoring:
- Drywell atmospheric gaseous radioactivity" Drywell floor and equipment drain sump flow rate" Drywell air cooler condensate flow rate" Drywell pressure* RPV head flange leak detection system* Drywell temperature Drywell Leak Detection (DLD) instrumentation is available via the Radiation Monitoring System (RM-1 1) to help determine IDENTIFIED LEAKAGE. Redundant instrumentation for DLD is available on Panel 10C604 located in the back of the Control Room.The value of 10 gpm for RCS UNIDENTIFIED LEAKAGE and PRESSURE BOUNDARY LEAKAGE was set higher than the T/S limits of 0 and 5 gpm respectively, to allow time to implement corrective actions (including plant shutdown) prior to exceeding the threshold.
However, if the value of 10 gpm is exceeded (using 10 minute average) and then clears, classification is still warranted.
IDENTIFIED LEAKAGE should ONLY be classified as an UNUSUAL EVENT, when the leak rate exceeds 25 gpm when averaged over any 24-hour period, regardless of whether or not the leak has been isolated.
The 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> average is included as part of the EAL threshold to provide consistency with the Technical Specification (T/S) limit for IDENTIFIED LEAKAGE.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: SU8.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-220 Relief valve normal operation is excluded from this EAL. However, a relief valve that operates and fails to close per design should be considered applicable to this EAL if the relief valve cannot be isolated.
An emergency declaration is NOT appropriate for the opening or cycling of an SRV when no other emergency condition exists.Escalation to the ALERT emergency classification level is via EALs in Category F. Note 6 has been added to remind the EAL-user to review the Fission Product Barrier EALs for possible escalation to higher emergency classifications.
Definitions:
UNIDENTIFIED LEAKAGE: As defined in T/S, shall be all leakage into the drywell that is not IDENTIFIED LEAKAGE.PRESSURE BOUNDARY LEAKAGE: As defined in T/S, shall be leakage through a nonisolable fault in a RCS component body, pipe wall, or vessel wall.IDENTIFIED LEAKAGE: As defined in T/S, shall be leakage into collection systems, such as pump seal or valve packing leaks, that is captured and conducted to a sump or collecting tank, or, leakage into the containment atmosphere from sources that are both specifically located and known either not to interfere with the operation of the leakage detection systems or not to be pressure boundary leakage.EAL Bases Reference(s):
- 3. HCGS Technical Specifications 3.4.3.2 Operational Leakage 4. HC.OP-AB.CONT-0001 (Q) Drywell Pressure 5. HC.OP-AB.CONT-0002 (Q) Primary Containment
- 6. HC.OP-EO.ZZ-01 01 (Q)-FC Reactor/Pressure Vessel (RPV) Control 7. HC.OP-EO.ZZ-0102(Q)-FC Primary Containment Control 8. HC.OP-GP.ZZ-0005(Q)
Drywell Leakage Source Detection 9. HC.OP-SO.SM-0001(Q)
Isolation Systems Operation 10. UFSAR 5.2.5 Detection of Leakage Through the Reactor Coolant Pressure Boundary and from the ECCS 11. UFSAR 7.6.1.3 Leak Detection System -Instrumentation and Control Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: SU8.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-220 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: S U 8.1 EALs for: F iss ion Product Barriers HCGS ECG -EAL Technical Bases EP-HC-1 11-221 EAL Category: Subcategory:
F -Fission Product Barrier Degradation RPV Level Initiating Condition:
OPCON Applicability:
EAL# & Point Value: Potential Loss of Fuel Clad 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown FBI-P (4 points)EAL: Basis: This threshold is the same as the RCS barrier Loss threshold RB1-L and corresponds to the RPV level at the top of the active fuel. Thus, this threshold indicates a Potential Loss of the Fuel Clad barrier and a Loss of RCS barrier that appropriately escalates the emergency classification level to a SITE AREA EMERGENCY.
Explanation/Discussion/Definitions:
Core Submergence is the preferred method of maintaining adequate core cooling. When RPV level decreases to below TAF, the ability to effectively remove decay heat is being challenged, and as such the Fuel Clad fission product barrier can no longer be considered intact. While the Emergency Operating Procedures provide contingencies to establish adequate core cooling when RPV level drops below TAF (Core Spray or Steam Cooling with or without injection), these actions are designed to be an alternative method of providing adequate core cooling while actions are taken to reestablish core submergence.
Sustained partial or total core uncovery can result in fuel damage and a significant release of fission products to the Reactor coolant. Sustained core uncovery can also result in a breach of the RPV due to core melt material interaction with the RPV.Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: FB1-P HCGS ECG -EAL Technical Bases EP-HC-1 11-221 A Loss of Core Submergence will occur when the rate of inventory loss is greater than the rate of inventory makeup from high pressure injection sources. This condition can occur as the result of the following events/sequences: " A LOCA will cause RPV level to reach the Top of Active Fuel when the LOCA is the result of a large break (momentary core uncovery is expected to occur under this condition) or when the LOCA is due to a small or intermediate break in combination with an inability of high pressure injection sources to keep up with the leakrate.* A loss of high pressure injection sources without the presence of a LOCA will also result in RPV level decreasing to TAF, due to continued Reactor Steam Flow without makeup.Either of these events/sequences results in a challenge to the Fuel Clad Barrier when RPV level CANNOT be restored AND maintained above the TAF due to core uncovery, hence classification at this threshold is appropriate.
However, for both these sequences, Low Pressure ECCS are designed to inject to the RPV as RPV Pressure decreases below the shutoff head of the pumps. RPV Depressurization will occur either due to the LOCA or Manual initiation of Emergency RPV Depressurization when RPV level cannot be restored and maintained above -185 in., provided injection systems are available.
This will allow for restoration of RPV level and re-establishment of Core Submergence.
Failure of these systems to restore and maintain RPV level above -185 in. will result in a Loss of the Fuel Clad barrier per EAL FB1-L.Until the wide range RPV level (WR) indicator is downscale or becomes questionable, it should be used to assure RPV level is above TAF. Once WR is downscale, use compensated fuel zone indication (SPDS or graph) to assess RPV level above TAF and when compensated fuel zone level indication goes below TAF or becomes questionable, declare the EAL.If RPV level cannot be determined, the indicated level value and trend have become unreliable to the extent that decisions concerning adequate core cooling cannot be made.RPV Flooding in accordance with EOP 206 or EOP 206A is required to assure continued core cooling. These EOPs specify actions to rapidly depressurize the RPV and establish sufficient RPV injection to cool the core by either steam cooling (with injection) or flooding the RPV to the main steam line penetrations.
Entry to the RPV Flooding EOPs warrants classification of a SITE AREA EMERGENCY based on EAL RB1-L and this EAL.Note that EOP Flowchart 101A may require intentionally controlling RPV level below -161 in.Under these conditions, a high-power ATWS event exists and requires at least a SITE AREA EMERGENCY classification in accordance with the ATWS/Criticality EALs.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: FB1-P HCGS ECG -EAL Technical Bases EP-HC-1 11-221 EAL Bases Reference(s):
1.2.3.4.5.6.7.NEI 99-01, Rev. 05, Table 5-F-2 Fuel Clad Potential Loss 2.A Technical Specifications Table 3.3.3-2 ECCS Actuation Instrumentation Setpoints Technical Specifications Figure B13/4-3-1 Reactor Vessel Water Level HC.OP-EO.ZZ-0101 (Q)-FC RPV Control HC.OP-EO.ZZ-0206(Q)-FC RPV Flooding HC.OP-EO.ZZ-0206A(Q)-FC ATWS -RPV Flooding HC.OP-EO.ZZ-0101A(Q)-FC ATWS -RPV Control Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: FB1-P HCGS ECG -EAL Technical Bases EP-HC-1 11-221 This page intentionally Blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: FB1-P HCGS ECG -EAL Technical Bases EP-HC-1 11-221 EAL Category: Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Point Value: F -Fission Product Barrier Degradation EC Judgment Potential Loss of Fuel Clad 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown FB2-P (4 points)EAL: ANY condition in the opinion of the Emergency Coordinator that indicates potential loss of the Fuel Clad barrier Basis: This threshold addresses any other factors that are to be used by the Emergency Coordinator in determining whether the Fuel Clad barrier is potentially lost. In addition, the inability to monitor the barrier should also be incorporated in this threshold as a factor in Emergency Coordinator judgment that the barrier may be considered potentially lost.Explanation/Discussion/Definitions:
The Emergency Coordinator judgment threshold addresses any other factors relevant to determining if the Fuel Clad barrier is potentially lost. Such a determination should include IMMINENT barrier degradation, barrier monitoring capability and dominant accident sequences.
- Barrier degradation exists if the degradation will likely occur within two hours based on a projection of current safety system performance.
- Barrier monitoring capability is decreased if there is a loss or lack of reliable indicators.
This assessment should include instrumentation operability concerns, readings from portable instrumentation and consideration of offsite monitoring results." Dominant accident sequences lead to degradation of all fission product barriers and likely entry to the EOPs. The Emergency Coordinator should be mindful of the Loss of AC power (Station Blackout) and ATWS EALs to assure timely emergency classification declarations.
Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: FB2-P HCGS ECG -EAL Technical Bases EP-HC-1 11-221 Definitions:
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 within approximately 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> (unless a different time is specified).
EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, Table 5-F-2 Fuel Clad Potential Loss 6.A Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: FB2-P HCGS ECG -EAL Technical Bases EP-HC-1 11-221 EAL Category: Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Point Value: F -Fission Product Barrier Degradation RPV Level Loss of Fuel Clad 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown FB1-L (5 points)EAL: Primary Containment Flooding is required as indicated by EITHER of the following: " RPV level CANNOT be restored and maintained above -185 in.* RPV level CANNOT be determined AND it is determined that core damage is occurring Basis: This RPV level value corresponds to the level used in EOPs to indicate challenge of core cooling. This is the minimum value to assure core cooling without further degradation of the clad.Explanation/Discussion/Definitions:
Core submergence is the mechanism of core cooling whereby each fuel element is completely covered with water. Indicated RPV level at or above the top of the active fuel (TAF) constitutes the principal means of confirming the adequacy of core cooling via this mechanism.
Assurance of continued adequate core cooling through core submergence is achieved when RPV level can be maintained at or above TAF.Spray cooling is the mechanism of core cooling whereby the uncovered portion of the core is cooled by spray flow. Adequate spray cooling exists by design when at least one Core Spray loop is operating at design flow (6150 gpm) and RPV level is at or above the elevation of the jet pump suctions (-215 in.). The covered portion of the core is then cooled by submergence while the uncovered portion is cooled by spray flow.Steam cooling is the mechanism of core cooling whereby steam updraft up through the uncovered portion of each fuel bundle is sufficient to prevent the temperature of the hottest fuel rod from exceeding the appropriate limiting value, which is specific to the mode of steam cooling being employed (i.e., with and without injection of makeup water to the RPV).Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: FB1-L HCGS ECG -EAL Technical Bases EP-HC-1 11-221 With injection of makeup water into the RPV established, adequate core cooling exists when steam flow through the core is sufficient to preclude the peak clad temperature of the hottest fuel rod from exceeding 1500 0 F, the threshold temperature for fuel rod perforation.
Assurance of continued adequate core cooling is achieved when RPV level can be maintained at or above the Minimum steam Cooling RPV Water Level -185 in.).With no injection into the RPV established, adequate core cooling exists only so long as the covered portion of the reactor core generates sufficient steam to preclude the peak clad temperature of the hottest fuel rod from exceeding 1800 0 F, the threshold temperature for significant metal-water reaction.Prolonged lack of cooling may result in severe overheating of the fuel clad, additional release of energy from accelerated clad oxidation, and eventual fuel melting. For events starting from full power operation, the failure to promptly reflood could result in some fuel melting. Even under these conditions vessel failure and primary containment failure with resultant release to the public would not be expected for some time. Reactor Water Level remaining below TAF for an extended amount of time represents an early indicator that significant core damage is in progress while providing sufficient time to initiate public protective actions.Ample time should be allowed for Low Pressure ECCS and alternate injection systems to restore RPV level prior to entry into this classification.
The time basis for deciding whether or not RPV level can be maintained
> -185 in. should be based on the rate of reactor depressurization, the availability of low-pressure injection sources, (ECCS and alternate injection systems), and the rate of Reactor coolant inventory loss. Indications such as RPV level trend, injection flow rates, primary containment parameter trends, and low pressure injection system capability should also be considered.
In the event, RPV level cannot be restored > -185 in., primary containment flooding will be required by the EOPs. This will attempt to flood the containment as a means of flooding the RPV, and use a flooded containment as a heat sink for the nuclear fuel.Until the wide range RPV level (WR) indicator is downscale or becomes questionable, it should be used to assure RPV level is above TAF. Once WR is downscale, use compensated fuel zone indication (SPDS or graph) to assess RPV level above TAF and when compensated fuel zone level indication goes below -185 in. or becomes questionable, declare the EAL.If RPV level cannot be determined, the indicated level value and trend have become unreliable to the extent that decisions concerning adequate core cooling cannot be made.RPV Flooding in accordance with EOP 206 or EOP 206A is required to assure continued core cooling. These EOPs specify actions to rapidly depressurize the RPV and establish sufficient RPV injection to cool the core by either steam cooling (with injection) or flooding the RPV to the main steam line penetrations.
Entry to the RPV Flooding EOPs warrants classification of a SITE AREA EMERGENCY based on EAL FB1-P and EAL RB1-L. If RPV Flooding is unsuccessful, indications that core damage is occurring will be observed (DAPA > 600 R/hr with drywell sprays, DAPA > 1200 R/hr without drywell sprays, or H 2 > 2% in either the Drywell or Suppression Chamber) and primary containment flooding is required (SAG entry).Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: FB1 -L HCGS ECG -EAL Technical Bases EP-HC-1 11-221 This threshold is also a Potential Loss of the Containment barrier (CB1-L). Since SAG entry occurs after core uncovery has occurred, a Loss of the RCS barrier exists (RB1-L). SAG entry, therefore, represents a Loss of two barriers and a Potential Loss of a third, which requires a GENERAL EMERGENCY classification.
EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, Table 5-F-2 Fuel Clad Loss 2.A 2. HC.OP-EO.ZZ-0101A(Q)-FC ATWS -RPV Control 3. HC.OP-EO.ZZ-0101(Q)-FC RPV Control 4. HC.OP-EO.ZZ-0206(Q)-FC RPV Flooding 5. HCOP-EO.ZZ-0206A(Q)-FC ATWS -RPV Flooding 6. HC.OP-AM.ZZ-0001(Z)
Severe Accident Guidelines (SAG)Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: FBI-L HCGS ECG -EAL Technical Bases EP-HC-1 11-221 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: FBI-L HCGS ECG -EAL Technical Bases EP-HC-1 11-221 EAL Category: Subcategory:
F -Fission Product Barrier Degradation RPV Level Initiating Condition:
OPCON Applicability:
EAL# & Point Value: EAL: Loss of Fuel Clad 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown FB2-L (5 points)ANY DAPA Radiation Monitor reading EITHER of the following:
- With drywell sprays, 2_ 2000 R/hr o Without drywell sprays, 2t 4000 R/hr Basis: The DAPA radiation monitor readings are values which indicate the release of reactor coolant, with elevated activity indicative of fuel damage, into the drywell.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.There is no Potential Loss threshold associated with this item.Explanation/Discussion/Definitions:
Drywell Atmosphere Post Accident (DAPA) Radiation monitors indicating 2000 R/hr or greater corresponds to a release of Reactor Coolant to the drywell with a concentration of 300 pCi/gm Dose Equivalent Iodine-1 31 (DEl-1 31) into the Primary Containment when Drywell Spray is in service. This value of Reactor Coolant Activity is well above the threshold that could occur as the result of Iodine Spiking, resin/chemical intrusion transients or a HWCI System malfunction.
This activity level corresponds to fuel damage of approximately 4%.EAL FB3-L provides a core damage analysis showing that a Reactor Coolant activity of 300 pCi/gm Dose Equivalent Iodine-1 31 (DEI) is indicative of 4% fuel damage. Using Attachment 2 of HC.EP-EP.ZZ-0205, 4% fuel damage is indicated by a DAPA reading of approximately 2000 R/hr at 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> after shutdown (the most conservative) with drywell spray in service and approximately 4000 R/hr at 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> after shutdown with drywell spray not in service.Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: FB2-L HCGS ECG -EAL Technical Bases EP-HC-1 11-221 From Attachment 2 of HC.EP-EP.ZZ-0205, Step 6 the following formula was used to derive the EAL set-points:
Cladding Damage 4 (% Cladding Damage) =DAPA Reading =DAPA Reading =4 (% Cladding Damage) =Indicated Radiation Level x I00%Cladding Damage Radiation Lcvcl 100 DAPA Rad Monitor Reading X100 50,000R/HR (from Att 2. Fig. 1, of HC.EP-EP.ZZ-0205 with Sprays)(4) (50,O0OR/HR) 100 2000R/hr (with Drywell Spray in service)OR DAPA Rad Monitor Reading X100 1 00,000RJHR (from Att 2. Fig. 1, of HC.EP-EP.ZZ-0205 without Sprays)(4) (100,OO0R/HR) 100 4000PRhr (without Drywell Spray in Service)DAPA Reading DAPA Reading DAPA radiation monitors RE-4825A and RE-4825B are high range area radiation monitors and are located in the drywell at 145' elevation.
Each detector has a range of 1 to 108 R/hr and a built in check source that keeps the associated channel on-scale at approximately 1.2 R/hr. In the Control Room, DAPA radiation levels are displayed on RI-4825A (RM-1 1 9RX635)and B (RM-1 1 9RX636) (Panel 10C604) and RR-4825A and B (10C650).
Drywell radiation levels > 2.OE+2 R/hr activates Overhead Annunciator C6-Cl, RADIATION MONITORING ALARM/TRBL.
A structural I-beam in the drywell shields DAPA radiation monitor RE-4825B from shine due to radioactivity in the RCS piping. RE-4825A is not shielded.
When the RCS is intact, elevated RCS coolant activity produces higher readings on RE-4825A than on RE-4825B.
During events in which radioactivity is dispersed into the drywell atmosphere, structural shielding diminishes as the monitors become immersed in the radiation field. If the difference in RE-4825A and RE-4825B readings should decrease, it may be inferred that a LOCA event is occurring.
Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: FB2-L HCGS ECG -EAL Technical Bases EP-HC-1 11 -221 EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, Table 5-F-2 Fuel Clad Loss 4.A 2. HC.EP-EP.ZZ-0205(Q)
TSC -Post Accident Core Damage Assessment
- 3. UFSAR Table 11.5-1 Hope Creek Radiation Monitoring System 4. HC.OP-AR.ZZ-0011(Q)
Overhead Annunciator Box C6 Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: FB2-L HCGS ECG -EAL Technical Bases EP-HC-1 11 -221 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: FB2-L HCGS ECG -EAL Technical Bases EP-HC-1 11-221 EAL Category: Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Point Value: F -Fission Product Barrier Degradation Radiation Loss of Fuel Clad 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown FB3-L (5 points)EAL: Primary coolant activity > 300 pCi/gm dose equivalent 1-131 Basis: Assessment by the EAL Task Force indicates that 300 tCi/gm 1-131 equivalent coolant activity is well above that expected for iodine spikes and corresponds to less than 4% fuel damage. This amount of radioactivity indicates significant fuel damage and thus the Fuel Clad Barrier is considered lost.There is no Potential Loss threshold associated with this item.Explanation/Discussion/Definitions:
The percentage of Fuel Damage that corresponds to an RCS Activity of 300 pCi/gm DEI-131 is calculated as follows (for purposes of this calculation, cc and gm are considered equivalent):
Dose Factors (RG-1.109) 1-131 = 4.39E-3 1-132 = 5.23E-5 1-133 = 1.04E-3 1-134 = 1.37E-5 1-135 = 2.14E-4 Total core inventory (HCGS-UFSAR, table 12.2-135).
This table gives 50% inventory, so table values are multiplied by 2.0.1-131 = 8.64E7 Ci 1-132 = 1.29E8 Ci 1-133 = 1.99E8 Ci 1-134 = 2.32E8 Ci 1-135 = 1.81 E8 Ci Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: FB3-L HCGS ECG -EAL Technical Bases EP-HC-1 11-221 Reactor Water Volume = 13000 cubic feet (HCGS Calculation BJ-0024)Clad Release Fraction for iodines = 0.02 (Table 4.1, NUREG-1228)
The activity of each isotope in the clad would then be: 1-131 = 8.64E7(0.02)
= 1.73E6 Ci 1-132 = 1.29E8(0.02)
= 2.58E6 Ci 1-133 = 1.99E8(0.02)
= 3.98E6 Ci 1-134 = 2.32E8(0.02)
= 4.64E6 Ci 1-135 = 1.81 E8(0.02) = 3.62E6 Ci These activities are equivalent to 2.89E6 Ci DEI-131 DEI -131 = (4.39E -3)(1.73E6)
+ (5.23E -5)(2.58E6)
+ (1.04E -3)(3.98E6)
+ (1.37E -5)(4.64E6)
+ (2.14E -4)(3.62E6)
(4.39E -3)Calculating the equivalent concentration:
2.89E6 Ci(1E6/uCi
/ Ci)Conc == 7.94E3 pCi/cc 13000 cf(2.8E4 cc/ cf)which represents the 100% fuel damage concentration.
300 pCi/cc DEI-131 is then equivalent to: 3004Xi / cc= 3.78%7.94E3/X2i
/ cc This is rounded to 3.8%.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: FB3-L HCGS ECG -EAL Technical Bases EP-HC-1 11-221 EAL Bases Reference(s):
1.2.3.4.5.6.7.NEI 99-01, Rev. 05, Table 5-F-2 Fuel Clad Loss 1.A NEI 99-01, Rev. 05, FC1 HC.OP-AB.RPV-0008 (Q) Reactor Coolant Activity HCGS Technical Specification LCO 3.4.5 Specific Activity NUREG 1228 -Source Term Estimation During Incident Response to Severe Nuclear Power Plant Accidents, Table 4.1 Reg. Guide 1.109, Table E-9 UFSAR Table 12.2-135 Post Accident Source Terms for Depressurized Liquid Containing Systems Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: FB3-L HCGS ECG -EAL Technical Bases EP-HC-1 11-221 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: FB3-L HCGS ECG -EAL Technical Bases EP-HC-1 11-221 EAL Category: Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Point Value: F -Fission Product Barrier Degradation EC Judgment Loss of Fuel Clad 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown FB4-L (5 points)EAL: Basis: This threshold addresses any other factors that are to be used by the Emergency Coordinator in determining whether the Fuel Clad barrier is lost. In addition, the inability to monitor the barrier should also be incorporated in this threshold as a factor in Emergency Coordinator judgment that the barrier may be considered lost.Explanation/Discussion/Definitions:
The Emergency Coordinator judgment threshold addresses any other factors relevant to determining if the Fuel Clad barrier is lost. Such a determination should include IMMINENT barrier degradation, barrier monitoring capability and dominant accident sequences.
- Barrier degradation exists if the degradation will likely occur within two hours based on a projection of current safety system performance.
- Barrier monitoring capability is decreased if there is a loss or lack of reliable indicators.
This assessment should include instrumentation operability concerns, readings from portable instrumentation and consideration of offsite monitoring results.* Dominant accident sequences lead to degradation of all fission product barriers and likely entry to the EOPs. The Emergency Coordinator should be mindful of the Loss of AC power (Station Blackout) and ATWS EALs to assure timely emergency classification declarations.
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 within approximately 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> (unless a different time is specified).
Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: FB4-L HCGS ECG -EAL Technical Bases EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, Table 5-F-2 Fuel Clad Loss 6.A EP-HC-1 11-221 Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: FB4-L HCGS ECG -EAL Technical Bases EP-HC-1 11-222 EAL Category: Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Point Value: F -Fission Product Barrier Degradation RCS Leakage, Leak Isolation, PC Venting Potential Loss of RCS 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown RB1-P (4 points)EAL: RCS leakage > 50 gpm inside the drywell Basis: This threshold is based on leakage is set at a level indicative of a small breach of the RCS but which is well within the makeup capability of normal and emergency high pressure systems.Core uncovery is not a significant concern for a 50 gpm leak, however, break propagation leading to significantly larger loss of inventory is possible.If primary system leak rate information is unavailable, other indicators of RCS leakage should be used.Explanation/Discussion/Definitions:
RCS leakage into the drywell exceeding 50 gpm is substantially greater than the RCS leakage thresholds established in EAL SU8.1 and represents further degradation of the RCS barrier.Inability to isolate the RCS leakage would eventually result in a high drywell pressure actuation
(>1.68 psig) of RPS, ECCS and PCIS. The actuation would lead to an isolation of the drywell floor and equipment drain sumps, complicating efforts to further identify and quantify any changes in the leak rate.Other indications of RCS leakage include: 0 0 0 0 Drywell atmospheric gaseous radioactivity Drywell air cooler condensate flow rate Drywell pressure RPV head flange leak detection system Drywell temperature Recirc Pump Dual Seal Failure Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: RBI-P HCGS ECG -EAL Technical Bases EP-HC-1 11-222 Inventory loss events, such as a stuck open SRV, should not be considered when referring to"RCS leakage" because they are not indications of break propagation.
EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, Table 5-F-2 RCS Barrier Potential Loss 3.A 2. HC.OP-GP-ZZ-0005 (Q) Drywell Leakage Source Detection 3. HC.OP-AB.CONT-0001 (Q) Drywell Pressure 4. HC.OP-AB.CONT-0002 (Q) Primary Containment
- 5. HC.OP-AB.RPV-0003 (Q) Recirc System / Power Oscillations
- 6. HC.RP-AR.SP-0001 (Q) Radiation Monitoring System Alarm Response -RM-1 1 7. HC.OP-EO.ZZ-01 01(Q)-FC Reactor/Pressure Vessel (RPV) Control 8. HC.OP-EO.ZZ-0102(Q)-FC Primary Containment Control 9. HC.OP-EO.ZZ-0103/4(Q)-FC Reactor Building and Radioactive Release Control 10. HC.OP-SO.SM-0001 (Q) Isolation Systems Operation Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: RB1-P HCGS ECG -EAL Technical Bases EP-HC-111-222 EAL Category: Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Point Value: EAL: F -Fission Product Barrier Degradation RCS Leakage, Leak Isolation, PC Venting Potential Loss of RCS 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown RB2-P (4 points)UNISOLABLE primary system leakage outside primary containment (after isolation from the Control Room has or should have been attempted) as indicated by exceeding EITHER of the following:
- ANY EOP 103 Reactor Bldg room temperature Table 1, Column 1 o ANY EOP 103 Reactor Bldg local rad monitoring alarm Basis: Potential loss of RCS based on primary system leakage outside the primary containment is determined from EOP flowchart 103 temperature or area radiation Maximum Normal Operating values in the areas of the RCIC, HPCI, etc., which indicate a direct path from the RCS to areas outside primary containment.
The indicators reaching the threshold barriers and confirmed to be caused by RCS leakage warrant an ALERT classification.
An UNISOLABLE leak defined by this EAL escalates to a SITE AREA EMERGENCY when combined with Containment Barrier Loss threshold CB5-L (after a containment isolation) and a GENERAL EMERGENCY when any Fuel Clad Barrier Loss criterion is also exceeded.Explanation/Discussion/Definitions:
The presence of elevated general area temperatures or radiation levels in the Reactor Building may be indicative of UNISOLABLE primary system leakage outside the primary containment.
The Reactor Bldg room temperatures listed in EOP 103 Table 1, Column 1, and the Reactor Bldg local rad monitoring alarm levels define the Maximum Normal Operating values because they signify the onset of abnormal system operation.
When parameters reach these levels, equipment failure or misoperation may be occurring.
Elevated parameters may also adversely affect the ability to gain access to or operate equipment within the affected Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: RB2-P HCGS ECG -EAL Technical Bases EP-HC-1 11-222 area. The locations into which the primary system discharge is of concern correspond to the areas addressed in EOP 103.In general, multiple indications should be used to determine if a primary system is discharging outside primary containment.
For example, a high area radiation condition does not necessarily indicate that a primary system is discharging into the secondary containment since this may be caused by radiation shine from nearby steam lines or the movement of radioactive materials.
Conversely, a high area radiation condition in conjunction with other indications (e.g. room flooding, high area temperatures, reports of steam in the secondary containment, an unexpected rise in feedwater flowrate, or unexpected main turbine control valve closure)may indicate that a primary system is discharging into the secondary containment.
This EAL allows for valve closure from the Control Room to isolate any systems not completely isolated, prior to event classification.
Isolation is defined as the closure of ANY valve from the Control Room in the system(s) not completely isolated.
For example, if the isolation logic fails to cause valve closure, but operator actions implemented in the Control Room successfully isolates the containment breach/leak path, then classification under this EAL is not warranted.
This includes Motor Operated Valves not controlled by the isolation logic, but that are controlled from the Control Room.Although this EAL allows for valve closure from the Control Room, the time to attempt closure and make a decision if leak isolation was successful runs concurrently with the EAL 15-minute assessment clock:* If, during the EAL 15-minute assessment period attempts from the Control Room to isolate the leak are successful then, this EAL is NOT exceeded and classification per this EAL should NOT be made.* If, during the EAL 15-minute assessment period attempts from the Control Room to isolate the leak are NOT successful then, this EAL is exceeded and classification should be made at that time. There is no need to wait the full 15 minutes.* If near the end of the 15 minute assessment period and the control room staff has not been able to attempt leak isolation or the EC is not convinced that an isolation attempt has been successful, then this EAL is exceeded and classification should be made at or before the 15-minute assessment time expires.Definitions:
UNISOLABLE:
A breach or leak that cannot be promptly isolated from the Control Room.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, Table 5-F-2 RCS Barrier Potential Loss 3.B 2. HC.OP-EO.ZZ-0103/4(Q)-FC Reactor Building and Rad Release Control Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: RB2-P HCGS ECG -EAL Technical Bases EP-HC-1 11-222 EAL Category: Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Point Value: F -Fission Product Barrier Degradation EC Judgment Potential Loss of RCS 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown RB3-P (4 points)EAL: ANY condition in the opinion of the Emergency Coordinator that indicates potential loss of the RCS barrier Basis: This threshold addresses any other factors that are to be used by the Emergency Coordinator in determining whether the RCS barrier is potentially lost. In addition, the inability to monitor the barrier should also be incorporated in this threshold as a factor in Emergency Coordinator judgment that the barrier may be considered potentially lost.Explanation/Discussion/Definitions:
The Emergency Coordinator judgment threshold addresses any other factors relevant to determining if the RCS barrier is potentially lost. Such a determination should include IMMINENT barrier degradation, barrier monitoring capability and dominant accident sequences.
- Barrier deqradation exists if the degradation will likely occur within two hours based on a projection of current safety system performance.
- Barrier monitorinq capability is decreased if there is a loss or lack of reliable indicators.
This assessment should include instrumentation operability concerns, readings from portable instrumentation and consideration of offsite monitoring results.* Dominant accident sequences lead to degradation of all fission product barriers and likely entry to the EOPs. The Emergency Coordinator should be mindful of the Loss of AC power (Station Blackout) and ATWS EALs to assure timely emergency classification declarations.
Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: RB3-P HCGS ECG -EAL Technical Bases EP-HC-1 11-222 Definitions:
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 within approximately 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> (unless a different time is specified).
EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, Table 5-F-2 RCS Potential Loss 6.A Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: RB3-P HCGS ECG -EAL Technical Bases EP-HC-1 11 -222 EAL Category: Subcategory:
F -Fission Product Barrier Degradation RPV Level Initiating Condition:
OPCON Applicability:
EAL# & Point Value: EAL: Loss of RCS 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown RB1-L (5 points)RPV level CANNOT be restored and maintained above -161 in.OR RPV level CANNOT be determined Basis: The Loss threshold RPV water level of -161 in. corresponds to the level that is used in EOPs to indicate challenge of core cooling.This threshold is the same as Fuel Clad Barrier Potential Loss threshold FBi-P and corresponds to a challenge to core cooling. Thus, this threshold indicates a Loss of RCS barrier and Potential Loss of Fuel Clad barrier that appropriately escalates the emergency classification level to a SITE AREA EMERGENCY.
There is no Potential Loss threshold associated with this item.Explanation/Discussion/Definitions:
The top of the active fuel is significantly lower than the normal operating RPV level control band. To reach this level, RPV inventory loss would have previously required isolation of the RCS and Containment (PC) barriers, and initiation of all ECCS. If RPV level cannot be maintained above the top of active fuel, ECCS and other sources of RPV injection have been ineffective or incapable of reversing the decreasing level trend.Core Submergence is the preferred method of maintaining adequate core cooling. When RPV Level decreases to below TAF, the ability to effectively remove decay heat is being challenged, and as such the Fuel Clad fission product barrier can no longer be considered intact. While the Emergency Operating Procedures provide contingencies to establish adequate core cooling when RPV Level drops below TAF (Core Spray or Steam Cooling with Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: RB1-L HCGS ECG -EAL Technical Bases EP-HC-1 11-222 or without injection), these actions are designed to be an alternative method of providing adequate core cooling while actions are taken to reestablish core submergence.
Sustained partial or total core uncovery can result in fuel damage and a significant release of fission products to the Reactor coolant. Sustained core uncovery can also result in a breach of the RPV due to core melt material interaction with the RPV.A Loss of Core Submergence will occur when the rate of inventory loss is greater than the rate of inventory makeup from high pressure injection sources. This condition can occur as the result of the following events/sequences:
- A LOCA will cause RPV Level to reach the Top of Active Fuel when the LOCA is the result of a large break (momentary core uncovery is expected to occur under this condition) or when the LOCA is due to a small or intermediate break in combination with an inability of high pressure injection sources to keep up with the leakrate." A loss of high pressure injection sources without the presence of a LOCA will also result in RPV Level decreasing to TAF, due to continued Reactor Steam Flow without makeup.Either of these events/sequences results in a challenge to the Fuel Clad Barrier when RPV Level CANNOT be restored AND maintained above the TAF due to core uncovery, hence classification at this threshold is appropriate.
However, for both these sequences, Low Pressure ECCS are designed to inject to the RPV as RPV Pressure decreases below the shutoff head of the pumps. RPV Depressurization will occur either due to the LOCA or Manual initiation of Emergency RPV Depressurization when RPV Level cannot be restored and maintained above -185 in., provided injection systems are available.
This will allow for restoration of RPV Level and re-establishment of Core Submergence.
Failure of these systems to restore and maintain RPV Level above -185 in. will result in a Loss of the Fuel Clad barrier per EAL FB1-L.Until the wide range (WR) indicator is downscale or becomes questionable, it should be used to assure RPV water level is above TAF. Once WR is downscale, use compensated fuel zone indication (SPDS or graph) to assess RPV level above TAF and when compensated fuel zone level indication goes below TAF or becomes questionable, declare the EAL.If RPV level cannot be determined, the indicated level value and trend have become unreliable to the extent that decisions concerning adequate core cooling cannot be made.RPV Flooding in accordance with EOP 206 or EOP 206A is required to assure continued core cooling. These EOPs specify actions to rapidly depressurize the RPV and establish sufficient RPV injection to cool the core by either steam cooling (with injection) or flooding the RPV to the main steam line penetrations.
Entry to the RPV Flooding EOPs warrants classification of a SITE AREA EMERGENCY based on EAL FB1-P and this EAL.Note that EOP Flowchart 101A may require intentionally controlling RPV level below -161 in.Under these conditions, a high-power ATWS event exists and requires at least a SITE AREA EMERGENCY classification in accordance with the ATWS/Criticality EALs.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: RB1-L HCGS ECG -EAL Technical Bases EP-HC-1 11-222 EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, Table 5-F-2 RCS Barrier Loss 2.A 2. Technical Specifications Table 3.3.3-2 ECCS Actuation Instrumentation Setpoints 3. Technical Specifications Figure B3/4-3-1 Reactor Vessel water Level 4. HC.OP-EO.ZZ-0101(Q)-FC RPV Control 5. HC.OP-EO.ZZ-0206(Q)-FC RPV Flooding 6. HC.OP-EO.ZZ-0206A(Q)-FC ATWS -RPV Flooding 7. HC.OP-EO.ZZ-0101A(Q)-FC ATWS -RPV Control Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: RB1-L HCGS ECG -EAL Technical Bases EP-HC-1 11-222 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: RB1-L HCGS ECG -EAL Technical Bases EP-HC-1 11-222 EAL Category: Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Point Value: F -Fission Product Barrier Degradation RPV / Drywell Pressure / Temperature
/ H 2 & 02 Levels Loss of RCS 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown RB2-L (5 points)EAL: Drywell pressure>
1.68 psig due to RCS leakage Basis: The Drywell pressure is based on the drywell high pressure of 1.68 psig which indicates a LOCA by automatically initiating ECCS.There is no Potential Loss threshold associated with this item.Explanation/Discussion/Definitions:
The drywell high pressure scram setpoint (1.68 psig) is an entry condition to the EOP flowcharts 101 and 102. EOP Flowchart 102 will prescribe operation of drywell or suppression chamber sprays.There are multiple Control Room indicators and alarms that can be used to determine the presence of this threshold.
Overhead annunciators alarm at 1.0 psig, 1.5 psig and 1.68 psig.Plant automatic response to a high drywell pressure condition includes:
a reactor scram, ECCS initiation, trip of the drywell cooling fans and isolation of the cooling water to the drywell.These actuations may mask the trend in Drywell pressure.
For example, the scram will result in less heat being added to the containment and the cooling water isolation will result in no heat being removed.In the HCGS design basis, primary containment pressures above the drywell high pressure scram setpoint are assumed to be the result of a high-energy release into the containment for which normal pressure control systems are inadequate or incapable of reversing the increasing pressure trend. Pressures of this magnitude, however, can be caused by non-LOCA events such as a loss of drywell cooling.The threshold phrase "...due to RCS leakage" focuses the barrier failure on the RCS instead of the non-LOCA malfunctions that may adversely affect Drywell pressure.
Drywell pressure greater than 1.68 psig with corollary indications (e.g., elevated drywell temperature, Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: RB2-L HCGS ECG -EAL Technical Bases EP-HC-1 11-222 indications of loss of RCS inventory) should therefore be considered a Loss of the RCS barrier. Loss of drywell cooling that results in pressure greater than 1.68 psig should not be considered an RCS barrier loss.Indication of an RCS leakage should be positively determined by observing Drywell parameters, including drywell pressure and temperature trends, drywell equipment and floor drain sump levels, DAPA radiation levels, atmospheric pressure, torus pressure, and the status of drywell cooling systems.An isolable Reactor Recirculation pump dual seal failure should not result in drywell pressure reaching this threshold, hence classification under this RCS Loss should not occur.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, Table 5-F-2 RCS Barrier Loss 1.A 2. Technical Specifications Table 3.3.3-2 ECCS Actuation Instrumentation Setpoints 3. HC.OP-EO.ZZ-01 01(Q)-FC Reactor/Pressure Vessel (RPV) Control 4. HC.OP-EO.ZZ-0102(Q)-FC Primary Containment Control 5. HC.OP-AB.CONT-0002(Q)
- 6. HC.OP-AB.CONT-0001(Q)
Drywell Pressure 7. HC.OP-GP.ZZ-0005(Q)
Drywell Leak Source Detection 8. HC.OP-SO.SM-0001(Q)
Isolation Systems Operation Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: RB2-L HCGS ECG -EAL Technical Bases EP-HC-1 11-222 EAL Category: Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Point Value: EAL: F -Fission Product Barrier Degradation RCS Leakage, Leak Isolation, PC Venting Loss of RCS 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown RB3-L (5 points)VALID isolation signal exists with an UNISOLABLE break outside primary containment (after isolation from the Control Room has or should have been attempted) in ANY of the following systems:* Main steam line" HPCI steam line" RCIC steam line* RWCU* Feedwater Basis: An UNISOLABLE MSL break is a breach of the RCS barrier. Thus, this threshold is included for consistency with the ALERT emergency classification level.Other large high-energy line breaks such as HPCI, Feedwater, RWCU, or RCIC that are UNISOLABLE also represent a significant loss of the RCS barrier and should be considered as MSL breaks for purposes of classification.
Explanation/Discussion/Definitions:
This UNISOLABLE Break is a breach of the RCS Barrier. This EAL represents large high-energy line breaks that are UNISOLABLE and meet the criteria for ALERT emergency classification.
Failure to completely isolate the effected break as determined by valve position and indication of continuing leakage, if outside the containment, could result in an additional Loss of the Containment Barrier.Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: RB3-L HCGS ECG -EAL Technical Bases EP-HC-1 11-222 A high energy line break that results in a VALID Isolation Signal for any of the systems listed in the EAL requires closure of the associated Primary Containment Isolation valves to maintain RCS and Primary Containment integrity under abnormal conditions.
A failure of these isolation valves to isolate allows Reactor Coolant to be released directly outside the Primary Containment (Containment Bypass), resulting in a Loss of RCS and Loss of Containment.
A RCS Line is ANY line that communicates directly with the Reactor.This EAL allows for valve closure from the Control Room to isolate any high energy line not completely isolated, prior to event classification.
Isolation is defined as the closure of ANY valve from the Control Room in the system(s) not completely isolated.
For example, if the isolation logic fails to cause valve closure, but operator actions implemented in the Control Room successfully isolates the effected line(s), then event classification under this EAL is not warranted.
This includes motor operated valves not controlled by the isolation logic, but that are controlled from the Control Room.Although this EAL allows for valve closure from the Control Room, the time to attempt closure and make a decision if leak isolation was successful runs concurrently with the EAL 15-minute assessment clock:* If, during the EAL 15-minute assessment period attempts from the Control Room to isolate the leak are successful then, this EAL is NOT exceeded and classification per this EAL should NOT be made." If, during the EAL 15-minute assessment period attempts from the Control Room to isolate the leak are NOT successful then, this EAL is exceeded and classification should be made at that time. There is no need to wait the full 15 minutes." If near the end of the 15 minute assessment period and the control room staff has not been able to attempt leak isolation or the EC is not convinced that an isolation attempt has been successful, then this EAL is exceeded and classification should be made at or before the 15-minute assessment time expires.Nuclear Steam Supply Shutoff System (NSSSS) isolations, as well as HPCI and RCIC steam line isolations, are associated with systems that are part of the RCS boundary and penetrate the Primary Containment.
Isolation requirements for these lines are covered in 10CFR50, Appendix A, General Design Criteria 55. These systems form a closed loop outside the Primary Containment, and are not open or potentially open to the environment.
They are included in this EAL since they represent an extension of the RCS boundary beyond the Primary Containment, and a potential release path from the RCS to the environment.
Without complete isolation, continuing flow/leakage represents a situation where Reactor Coolant is discharging outside the Primary Containment, including areas in the Reactor Building addressed in the EOPs.Indication of an UNISOLABLE break includes:
flow indication through isolated lines, increasing Reactor Building area temperatures, area radiation levels, also increases in sump Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: RB3-L HCGS ECG -EAL Technical Bases EP-HC-1 11-222 levels, or room levels in spaces associated with affected lines, as well as increases in Plant Vent Effluent levels.The isolation valve status of all isolation groups is monitored for quick reference on SPDS to be backed up by operator observation of valve status.A high-energy line break may be detected by the following:
- Main steam line: NSSSS ISLN SIG -STM TNL TEMP HI (C8-C4)NSSSS ISLN SIG -MN STM FLOW HI (C8-B4)MSIV CLOSURE (C5-B3)Rapid changes in Main Steam Line Flow and Steam* HPCI steam line: HPCI/RHR A AREA LEAK TEMP HI (D3-A1)HPCI STM LK ISLO TIMER INITIATED (D3-B1)HPCI STEAM LINE DIFF PRESSURE HI (B1-A5)* RCIC steam line: RCIC/RHR B AREA LEAK TEMP HI (D3-A2)RCIC STM LK ISLO TIMER INITIATED (D3-B2)RCIC STEAM LINE DIFF PRESSURE HI (B1-A2)* RWCU: MN STM/RWCU AREA LEAK TEMP HI (D3-A3)RWCU STM LK ISLO TIMER INITIATED (D3-B3)RWCU DIFF FLOW HI (C1-A2)" Feedwater line break in steam tunnel: NSSSS ISLN SIG -STM TNL TEMP HI (C8-C4)NSSSS ISLN SIG -MN STM FLOW HI (C8-B4)Tunnel Temperatures Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: RB3-L HCGS ECG -EAL Technical Bases EP-HC-1 11-222 MSIV CLOSURE (C5-B3)Rapid changes in Feedwater Flow and Steam Tunnel Temperatures Even though RWCU and Feedwater systems do not contain steam, they are included in the list because an unisolable break could result in the high-pressure discharge of fluid that is flashed to steam from relatively large volume systems directly connected to the RCS.Definitions:
UNISOLABLE:
A breach or leak that cannot be promptly isolated from the Control Room.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 indicator's operability, the condition's existence, or the report's accuracy is removed. Implicit in this definition is the need for timely assessment.
EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, Table 5-F-2 RCS Barrier Loss 3.A 2. UFSAR 5.4.5 Main Steam Line Isolation System 3. UFSAR 6.3.1.1 Emergency Core Cooling System 4. UFSAR 5.4.6 RCIC 5. UFSAR 5.4.8 RWCU 6. UFSAR 5.4.9 Main Steam Line and Feedwater Line 7. HC.OP-AR.ZZ-0006, 8, 10, 12, 14 (Q) Annunciator Response Procedure, Windows B1/Cl/C5/C8/D3 Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: RB3-L HCGS ECG -EAL Technical Bases EP-HC-111-222 EAL Category: Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Point Value: F -Fission Product Barrier Degradation RCS Leakage, Leak Isolation, PC Venting Loss of RCS 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown RB4-L (5 points)EAL: Emergency RPV Depressurization is required Basis: Plant symptoms requiring Emergency RPV Depressurization per the EOP flowcharts are indicative of a loss of the RCS barrier. If Emergency RPV depressurization is required, the plant operators are directed to open safety relief valves (SRVs) and keep them open. Even though the RCS is being vented into the suppression pool, a loss of the RCS should be considered to exist due to the diminished effectiveness of the RCS pressure barrier to a release of fission products beyond its boundary.Explanation/Discussion/Definitions:
The following EOPs require Emergency Depressurization under specific conditions:
HC.OP-EO.ZZ-0101A-FC, ATWS -RPV Control* When RPV level cannot be restored and maintained above -185 in.HC.OP-EO.ZZ-01 01 -FC, Reactor/Pressure Vessel (RPV) Control* Before RPV level reaches -185 in. with available injection, or* When RPV level drops to -200 in. when in Steam Cooling Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: RB4-L HCGS ECG -EAL Technical Bases EP-HC-1 11-222 HC.OP-EO.ZZ-01 02-FC, Primary Containment Control" Cannot maintain Supp Chamber Pressure below Pressure Suppression Pressure Curve, or" Drywell Temperature cannot be restored and maintained below 340'F, or" Combined Supp Pool Temp and RPV Press cannot be maintained below the Heat Capacity Temperature Limit Curve, or* Supp Pool Level cannot be maintained above 38.5 in., or" Supp Pool Level and RPV Press cannot be restored and maintained below the SRV Tail Pipe level Limit Curve HC.OP-EO.ZZ-0103/4-FC, Reactor Building & Rad Release Control" When selected Area Room Temperatures/Levels cannot be maintained below the Max Safe Operating Temperature/Floor Level and there is a Primary System discharging outside Primary Containment, or" When Gaseous Radioactive Release cannot be maintained below GE levels and there is a Primary System discharging outside Primary Containment and Reactor Building EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, Table 5-F-2 RCS Barrier Loss 3.B 2. HC.OP-EO.ZZ-0101(Q)-FC Reactor/Pressure Vessel (RPV) Control 3. HC.OP-EO.ZZ-0101A(Q)-FC ATWS -RPV Control 4. HC.OP-EO.ZZ-0102(Q)-FC Primary Containment Control 5. HC.OP-EO.ZZ-0103/4(Q)-FC Reactor Building & Rad Release Control Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: RB4-L HCGS ECG -EAL Technical Bases EP-HC-1 11-222 EAL Category: Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Point Value: F -Fission Product Barrier Degradation EC Judgment Loss of RCS 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown RB5-L (5 points)EAL: ANY condition in the opinion of the Emergency Coordinator that indicates loss of the RCS barrier Basis: This threshold addresses any other factors that are to be used by the Emergency Coordinator in determining whether the RCS barrier is lost. In addition, the inability to monitor the barrier should also be incorporated in this threshold as a factor in Emergency Coordinator judgment that the barrier may be considered lost.Explanation/Discussion/Definitions:
The Emergency Coordinator judgment threshold addresses any other factors relevant to determining if the RCS barrier is lost. Such a determination should include IMMINENT barrier degradation, barrier monitoring capability and dominant accident sequences." Barrier degradation exists if the degradation will likely occur within two hours based on a projection of current safety system performance." Barrier monitoring capability is decreased if there is a loss or lack of reliable indicators.
This assessment should include instrumentation operability concerns, readings from portable instrumentation and consideration of offsite monitoring results." Dominant accident sequences lead to degradation of all fission product barriers and likely entry to the EOPs. The Emergency Coordinator should be mindful of the Loss of AC power (Station Blackout) and ATWS EALs to assure timely emergency classification declarations.
Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: RB5-L HCGS ECG -EAL Technical Bases EP-HC-1 11-222 Definitions:
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 within approximately 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> (unless a different time is specified).
EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, Table 5-F-2 RCS Loss 6.A Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: RB5-L HCGS ECG -EAL Technical Bases EP-HC-1 11-223 EAL Category: Subcategory:
F -Fission Product Barrier Degradation RPV Level Initiating Condition:
OPCON Applicability:
EAL# & Point Value: EAL: Potential Loss of Containment 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown CB1-P (2 points)Primary Containment Flooding is required as indicated by EITHER of the following:
o RPV level CANNOT be restored and maintained above -185 in." RPV level CANNOT be determined AND it is determined that core damage is occurring Basis: There is no Loss threshold associated with this item.The potential loss requirement for Primary Containment Flooding indicates adequate core cooling cannot be established and maintained and that core melt is possible.
Entry into Primary Containment Flooding procedures (SAGs) is a logical escalation in response to the inability to maintain adequate core cooling.The condition in this potential loss threshold represents a potential core melt sequence which, if not corrected, could lead to vessel failure and increased potential for containment failure. In conjunction with RPV level Loss threshold EALs FB1-L and RB1-L, this threshold will result in the declaration of a GENERAL EMERGENCY
-- loss of two barriers and the potential loss of a third.Explanation/Discussion/Definitions:
Core submergence is the mechanism of core cooling whereby each fuel element is completely covered with water. Indicated RPV water level at or above the top of the active fuel (TAF)constitutes the principal means of confirming the adequacy of core cooling via this mechanism.
Assurance of continued adequate core cooling through core submergence is achieved when RPV water level can be maintained at or above TAF.Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: CB1-P HCGS ECG -EAL Technical Bases EP-HC-1 11-223 Spray cooling is the mechanism of core cooling whereby the uncovered portion of the core is cooled by spray flow. Adequate spray cooling exists by design when at least one Core Spray loop is operating at design flow (6150 gpm) and RPV water level is at or above the elevation of the jet pump suctions (-215 inches). The covered portion of the core is then cooled by submergence while the uncovered portion is cooled by spray flow.Steam cooling is the mechanism of core cooling whereby steam updraft up through the uncovered portion of each fuel bundle is sufficient to prevent the temperature of the hottest fuel rod from exceeding the appropriate limiting value, which is specific to the mode of steam cooling being employed (i.e., with and without injection of makeup water to the RPV).With injection of makeup water into the RPV established, adequate core cooling exists when steam flow through the core is sufficient to preclude the peak clad temperature of the hottest fuel rod from exceeding 1500 0 F, the threshold temperature for fuel rod perforation.
Assurance of continued adequate core cooling is achieved when RPV water level can be maintained at or above the Minimum Steam Cooling RPV Water Level -185 in.).With no injection into the RPV established, adequate core cooling exists only so long as the covered portion of the reactor core generates sufficient steam to preclude the peak clad temperature of the hottest fuel rod from exceeding 18000F, the threshold temperature for significant metal-water reaction.Prolonged lack of cooling may result in severe overheating of the fuel clad, additional release of energy from accelerated clad oxidation, and eventual fuel melting. For events starting from full power operation, the failure to promptly reflood could result in some fuel melting. Even under these conditions vessel failure and containment failure with resultant release to the public would not be expected for some time. Reactor Water Level remaining below TAF for an extended amount of time represents an early indicator that significant core damage is in progress while providing sufficient time to initiate public protective actions.Ample time should be allowed for Low Pressure ECCS and alternate injection systems to restore RPV level prior to entry into this classification.
The time basis for deciding whether or not RPV level can be maintained
> -185 in. should be based on the rate of reactor depressurization, the availability of low-pressure injection sources, (ECCS and alternate injection systems), and the rate of Reactor coolant inventory loss. Indications such as RPV level trend, injection flow rates, containment parameter trends, and low pressure injection system operability should also be considered.
In the event, RPV level cannot be restored > -185 in., primary containment flooding will be required by the EOPs. This will attempt to flood the containment as a means of flooding the RPV, and use a flooded containment as a heat sink for the nuclear fuel.Until the wide range RPV level (WR) indicator is downscale or becomes questionable, it should be used to assure RPV water level is above TAF. Once WR is downscale, use compensated fuel zone indication (SPDS or graph) to assess RPV level above TAF and when Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: CB1-P HCGS ECG -EAL Technical Bases EP-HC-1 11-223 compensated fuel zone level indication goes below -185 in. or becomes questionable, declare the EAL.If RPV level cannot be determined, the indicated level value and trend have become unreliable to the extent that decisions concerning adequate core cooling cannot be made.RPV Flooding in accordance with EOP 206 or EOP 206A is required to assure continued core cooling. These EOPs specify actions to rapidly depressurize the RPV and establish sufficient RPV injection to cool the core by either steam cooling (with injection) or flooding the RPV to the main steam line penetrations.
Entry to the RPV Flooding EOPs warrants classification of a SITE AREA EMERGENCY based on EAL FB1-P and EAL RB1-L. If RPV Flooding is unsuccessful, indications that core damage is occurring will be observed (DAPA > 2000 R/hr[w/ drywell sprays], DAPA > 4000 R/hr [w/o drywell sprays] or H 2 > 2% in either the Drywell or Suppression Chamber) and primary containment flooding is required (SAG entry).EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, Table 5-F-2 Containment Potential Loss 2.A 2. HC.OP-EO.ZZ-0101A(Q)-FC ATWS -RPV Control 3. HC.OP-EO.ZZ-0101(Q)-FC RPV Control 4. HC.OP-EO.ZZ-0206(Q)-FC RPV Flooding 5. HC.OP-EO.ZZ-0206A(Q)-FC ATWS -RPV Flooding 6. HC.OP-AM.ZZ-0001(Z)
Severe Accident Guidelines (SAG)Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: CBI-P HCGS ECG -EAL Technical Bases EP-HC-1 11-223 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: CB1-P HCGS ECG -EAL Technical Bases EP-HC-1 11-223 EAL Category: Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Point Value: F -Fission Product Barrier Degradation RPV / Drywell Pressure / Temperature
/ H 2 & 02 Levels Potential Loss of Containment 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown CB2-P (2 points)EAL: Drywell Pressure > 62 psig and rising Basis: The Drywell pressure of 62 psig is based on the primary containment design pressure.Explanation/Discussion/Definitions:
If this threshold is exceeded, a challenge to the containment structure has occurred because assumptions used in the accident analysis are no longer valid and an unanalyzed condition exists. This constitutes a Potential Loss of the Containment barrier even if a containment breach has not occurred.EOP 102 requires intentional venting of the primary containment before drywell pressure reaches 65 psig (Primary Containment Pressure Limit). If the venting action is performed before this EAL threshold is exceeded, a Loss of the Containment Barrier exists under EAL CB4-L.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, Table 5-F-2 Containment Potential Loss 1.A 2. UFSAR Table 6.2-1 Containment Design Parameters
- 3. UFSAR Section 6.2 Containment Systems 4. HC.OP-EO.ZZ-0102(Q)-FC Primary Containment Control Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: CB2-P HCGS ECG -EAL Technical Bases EP-HC-1 11-223 This page intentionally blank Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: CB2-P HCGS ECG -EAL Technical Bases EP-HC-1 11-223 EAL Category: Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Point Value: F -Fission Product Barrier Degradation RPV / Drywell Pressure / Temperature
/ H 2 & 02 Levels Potential Loss of Containment 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown CB3-P (2 points)EAL: Indications of > 6% H 2 and 2 5% 02 in Drywell or Torus Basis: BWRs specifically define the limits associated with explosive mixtures in terms of deflagration concentrations of hydrogen and oxygen.Explanation/Discussion/Definitions:
Venting is required when Hydrogen concentration in the Drywell or Torus reaches the Explosive Mixture (deflagration concentrations) of > 6% with Oxygen concentration
> 5%.Exceeding these parameters creates the potential for an UNISOLABLE breach of the primary containment, which could result in an uncontrolled, unmonitored, and untreated release of radioactivity to the environment.
This EAL represents a Potential Loss of Containment, since containment venting is required due to Containment parameters potentially exceeding their design limits. Once the containment is vented per the EOPs, a loss of the Containment barrier has occurred and classification per EAL CB4-L should be made. The magnitude of any radiological release is dependent upon events leading to the requirement for emergency venting, including a loss of the RCS and a loss of the Fuel Clad Barriers.The elevated hydrogen in the Drywell or Torus may result from excessive zircaloy-water reaction occurring following a LOCA. Additionally, hydrogen and oxygen gas may be introduced into the containment environment from long term disassociation of water in the Suppression Chamber.SAG guidance in these cases is provided to vent the Primary Containment regardless of off-site dose consequences.
Although radiological releases resulting from venting containment may exceed Environmental Protection Agency (EPA) Protective Action Guideline (PAG) limits, a controlled, monitored, and isolable release is preferred to a potential uncontrolled, unmonitored radiological release that would result from a failure of containment.
Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: CB3-P HCGS ECG -EAL Technical Bases EP-HC-1 11-223 Elevated primary containment hydrogen concentration is alarmed at > 2% by overhead annunciator E3-F5 (H2/02 ANALYZER TROUBLE) and digital alarm points D4203 and D4212.Definitions:
UNISOLABLE:
A breach or leak that cannot be promptly isolated from the Control Room.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, Table 5-F-2 Containment Potential Loss 1.B 2. HC.OP-AM.ZZ-0001(Z) (SAG-2) Containment and Radioactivity Release Control 3. HC.OP-AR.ZZ-0024(Q)
CRIDS Computer Points Book 5 D3624 thru D4288 4. HC.OP-AR.ZZ-0016(Q)
Overhead Annunciator Window Box E3 Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: CB3-P HCGS ECG -EAL Technical Bases EP-HC-1 11-223 EAL Category: Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Point Value: F -Fission Product Barrier Degradation RPV / Drywell Pressure / Temperature
/ H 2 & 02 Levels Potential Loss of Containment 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown CB4-P (2 points)EAL: RPV pressure and suppression pool temperature CANNOT be maintained below the HCTL (EOP Curve SPT-P)Basis: The Heat Capacity Temperature Limit (HCTL) is the highest suppression pool temperature from which Emergency RPV Depressurization will not result in exceeding either:* Suppression chamber design temperature of > 310 degrees OR* Primary Containment Pressure Limit of 65 psig, while the rate of energy transfer from the RPV to the containment is greater than the capacity of the containment vent.The HCTL is a function of RPV pressure and suppression pool water level. It is utilized to preclude failure of the containment and equipment in the containment necessary for the safe shutdown of the plant and therefore, the inability to maintain plant parameters below the limit constitutes a potential loss of containment.
Explanation/Discussion/Definitions:
The HCTL is given in EOP Flowchart 102 Curve SPT-P (ref. 2).EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, Table 5-F-2 Containment Potential Loss 1.C 2. HC.OP-EO.ZZ-0102(Q)-FC Primary Containment Control Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: CB4-P HCGS ECG -EAL Technical Bases EP-HC-1 11-223 This page intentionally blank Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: CB4-P HCGS ECG -EAL Technical Bases EP-HC-1 11-223 EAL Category: Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Point Value: EAL: F -Fission Product Barrier Degradation Radiation Potential Loss of Containment 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown CB5-P (2 points)ANY DAPA Radiation Monitor reading EITHER of the following:
- With drywell sprays, _> 10,000 R/hr* Without drywell sprays, _> 20,000 R/hr Basis: The DAPA readings are values that indicate significant fuel damage well in excess of that required for loss of Fuel Clad.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.
There is no Loss threshold associated with this item.Explanation/Discussion/Definitions:
Core damage analysis indicates 20% fuel damage dispersed into the drywell atmosphere is expected to produce a Drywell Atmosphere Post Accident (DAPA) radiation monitor reading of approximately 10,000 R/hr at 1 hr after shutdown (the most conservative) with drywell spray in service, and approximately 20,000 R/hr at 1 hr after shutdown with drywell spray not in service.From Attachment 2 of HC.EP-EP.ZZ-0205, Step 6 the following formula was used to derive the EAL Set-points:
Indicated Radiation Level% Cladding Damage.x100 t 00% Cladding Damage Radiation Levet Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: CB5-P HCGS ECG -EAL Technical Bases EP-HC-1 11-223 20 (% Cladding Damage) =DAPA Reading =DAPA Reading =20 (% Cladding Damage) =DAPA Rad Monitor Readinq X100 50,OOOR/HR (from Att2. Fig. 1, of HC.EP-EP.ZZ-0205 with Sprays)(20) (50,000PRHR) 100 10,000 R/hr (with Drywell Spray in service)OR DAPA Rad Monitor Reading X100 1 00,OOOR/HR (from Att 2. Fig. 1, of HC.EP-EP.ZZ-0205 without Sprays)(20) (100,000R/HR) 100 20,000 R/hr (without Drywell Spray in Service)DAPA Reading DAPA Reading DAPA radiation monitors RE-4825A and RE-4825B are high range area radiation monitors and are located in the drywell at 145' elevation.
Each detector has a range of 1 to 10 8 R/hr and a built in check source that keeps the associated channel on-scale at approximately 1.2 R/hr. In the Control Room, DAPA radiation levels are displayed on RI-4825A (RM-1 1 9RX635)and B (RM-1 1 9RX636) ( (Panel 10C604) and RR-4825A and B (10C650).
Drywell radiation levels > 2.OE+2 R/hr activates Overhead Annunciator C6-Cl, RADIATION MONITORING ALARM/TRBL.
A structural I-beam in the drywell shields DAPA radiation monitor RE-4825B from shine due to radioactivity in the RCS piping. RE-4825A is not shielded.
When the RCS is intact, elevated RCS coolant activity produces higher readings on RE-4825A than on RE-4825B.
During events in which radioactivity is dispersed into the drywell atmosphere, structural shielding diminishes as the monitors become immersed in the radiation field. If the difference in RE-4825A and RE-4825B readings should decrease, it may be inferred that a LOCA event is occurring.
EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, Table 5-F-2 Containment Potential Loss 4.A 2. HC.EP-EP.ZZ-0205(Q)
TSC -Post Accident Core Damage Assessment
- 3. UFSAR Table 11.5-1 Hope Creek Radiation Monitoring Systems 4. HC.OP-AR.ZZ-001 1(Q) Overhead Annunciator Box C6 Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: CB5-P HCGS ECG -EAL Technical Bases EP-HC-1 11-223 EAL Category: Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Point Value: F -Fission Product Barrier Degradation EC Judgment Potential Loss of Containment 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown CB6-P (2 points)EAL: ANY condition in the opinion of the Emergency Coordinator that indicates potential loss of the Containment barrier Basis: This threshold addresses any other factors that are to be used by the Emergency Coordinator in determining whether the Containment barrier is potentially lost. In addition, the inability to monitor the barrier should also be incorporated in this threshold as a factor in Emergency Coordinator judgment that the barrier may be considered potentially lost.The Containment barrier should not be declared 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.
Explanation/Discussion/Definitions:
The Emergency Coordinator judgment threshold addresses any other factors relevant to determining if the Containment barrier is potentially lost. Such a determination should include IMMINENT barrier degradation, barrier monitoring capability and dominant accident sequences.
- Barrier degradation exists if the degradation will likely occur within two hours based on a projection of current safety system performance.
- Barrier monitoring capability is decreased if there is a loss or lack of reliable indicators.
This assessment should include instrumentation operability concerns, readings from portable instrumentation and consideration of offsite monitoring results.Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: CB6-P HCGS ECG -EAL Technical Bases EP-HC-1 11-223 Dominant accident sequences lead to degradation of all fission product barriers and likely entry to the EOPs. The Emergency Coordinator should be mindful of the Loss of AC power (Station Blackout) and ATWS EALs to assure timely emergency classification declarations.
Definitions:
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 within approximately 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> (unless a different time is specified).
EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, Table 5-F-2 Containment Potential Loss 6.A Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: CB6-P HCGS ECG -EAL Technical Bases EP-HC-1 11-223 EAL Category: Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Point Value: F -Fission Product Barrier Degradation RPV / Drywell Pressure / Temperature
/ H 2 & 02 Levels Loss of Containment 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown CB1-L (3 points)EAL: Drywell Pressure rise followed by a rapid unexplained drop in Drywell pressure Basis: Primary containment pressure should increase as a result of mass and energy release into containment from a LOCA. Rapid unexplained loss of pressure (i.e., not attributable to drywell spray or condensation effects) following an initial pressure increase from a high energy line break indicates a loss of Primary 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.
Explanation/Discussion/Definitions:
Conditions that result in a drop in primary containment (PC) pressure following a pressure rise that are not the direct result of a containment failure do not warrant classification under this threshold.
These events include the initiation of drywell sprays, the re-establishment of drywell cooling, and anticipated Drywell pressure drop due to ambient losses.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, Table 5-F-2 Containment Barrier Loss 1.A 2. HC.OP-EO.ZZ-0101(Q)-FC Reactor/Pressure Vessel (RPV) Control 3. HC.OP-EO.ZZ-0102(Q)-FC Primary Containment Control 4. HC.OP-AB.CONT-0002(Q)
- 5. HC.OP-AB.CONT-0001(Q)
Drywell Pressure Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: CB1-L HCGS ECG -EAL Technical Bases EP-HC-1 11-223 This page intentionally blank Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: CB1-L HCGS ECG -EAL Technical Bases EP-HC-111-223 EAL Category: Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Point Value: F -Fission Product Barrier Degradation RPV / Drywell Pressure / Temperature
/ H 2 & 02 Levels Loss of Containment 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown CB2-L (3 points)EAL: Drywell pressure response NOT consistent with LOCA conditions Basis: Primary containment pressure should increase as a result of mass and energy release into containment from a LOCA. Thus, primary containment pressure not increasing under these conditions indicates 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.
Explanation/Discussion/Definitions:
This threshold relies on operator recognition of an unexpected response for the condition and, therefore, does not have a specific criterion.
The unexpected response is important because it is the indicator for a containment bypass condition.
A downcomer failure, by itself, does not represent a loss of the Containment barrier. This failure, however, renders the primary containment inoperable per Technical Specifications because primary containment integrity has been compromised.
A downcomer failure (bypass of the pressure suppression function) combined with a large break LOCA would likely result in a Potential Loss of the Containment barrier under Containment Potential Loss EAL CB2-P if Drywell pressure cannot be maintained below 62 psig.UFSAR Section 6.2 provides a summary of primary containment pressure response for several postulated accident conditions resulting in the release of RCS inventory to the containment.
These accidents include:* Rupture of a recirculation line" Rupture of a main steam line Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: CB2-L HCGS ECG -EAL Technical Bases EP-HC-1 11-223* Intermediate size liquid line rupture* Small size RCS rupture The primary containment pressure response to these breaks were bounded by the recirculation line break.UFSAR Figures 6.2-3 and 6.2-7 (Attachment 2, pages 6 and 7) illustrates the primary containment pressure response due to a recirculation line break. The maximum calculated drywell pressure is 50.6 psig and is well below the design allowable pressure of 62 psig.Due to conservatisms in LOCA analyses, actual primary containment pressure response is expected to be less than the analyzed response.
For example, blowdown mass flowrate may be only 60-80% of the analyzed rate, initial primary containment pressure may be less than 1.5 psig, etc.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, Table 5-F-2 Containment Barrier Loss 1..B 2. UFSAR Section 6.2.1.1.3.1 Introduction (Pressure Suppression Containment Design Evaluation)
- 3. UFSAR Figure 6.2-3 Short Term Containment Pressure Response Following Recirculation Line Break 4. UFSAR Figure 6.2-7 Long Term Containment Pressure Response Following Recirculation Line Break 5. UFSAR Table 6.2-1 Containment Design Parameters
- 6. UFSAR Table 6.2-3 Initial Conditions for Containment Response Analyses Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: CB2-L HCGS ECG -EAL Technical Bases EP-HC-1 11-223 EAL Category: Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Point Value: EAL: F -Fission Product Barrier Degradation RCS Leakage, Leak Isolation, PC Venting Loss of Containment 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown CB3-L (3 points)UNISOLABLE leakage outside primary containment (after isolation from the Control Room has or should have been attempted)
AND Direct downstream pathway to the environment exists Basis: These thresholds address incomplete primary containment isolation that allows direct release to the environment.
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.Explanation/Discussion/Definitions:
This threshold addresses failure of open isolation devices which should close upon receipt of a manual or automatic containment isolation signal resulting in a significant radiological release pathway directly to the environment.
The concern is the UNISOLABLE open pathway to the environment.
A failure of the ability to isolate any one line indicates a breach of primary containment integrity.
Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: CB3-L HCGS ECG -EAL Technical Bases EP-HC-1 11-223 As stated above, the adjective "Direct" modifies "release pathway" to discriminate against release paths through interfacing liquid systems. Leakage into a closed system is to be considered only if the closed system is breached and thereby creates a significant pathway to the environment.
Examples include UNISOLABLE main steam line or RCIC/HPCI steam line breaks, UNISOLABLE RWCU system breaks, and UNISOLABLE containment atmosphere vent paths. If the main condenser is available with an UNISOLABLE main steam line, there may be releases through the steam jet air ejectors and gland seal exhausters.
These pathways are monitored, however, and do not meet the intent of a UNISOLABLE direct release path to the environment.
These minor releases are assessed using EALs in Category R, Abnormal Rad Release / Rad Effluent.Indications (symptoms) of primary containment failure may be evident without the exact pathway being understood at the time of the failure. If the primary containment or part of the RCS is required to be isolated and there are valid indications that the primary containment is not isolated, the Containment barrier should be considered lost.This EAL ALLOWS for valve closure from the Control Room to isolate any system not completely isolated, prior to event classification.
This includes Motor Operated Valves not controlled by isolation logic, but that are controlled from the Control Room. For example, if the isolation logic fails to cause valve closure, but operator actions implemented in the Control Room successfully isolates the containment breach path, then classification under this EAL is NOT WARRANTED.
Although this EAL ALLOWS for valve closure from the Control Room, the time to attempt closure and make a decision if containment leak isolation was successful RUNS CONCURRENTLY with the EAL 15-minute assessment clock.* If, during the EAL 15-minute assessment period attempts from the Control Room to isolate the containment ARE SUCCESSFUL then, this EAL is NOT exceeded and classification per this EAL should NOT be made." If, during the EAL 15-minute assessment period attempts from the Control Room to isolate the containment ARE NOT SUCCESSFUL then, this EAL is exceeded and classification should be made at that time. There is no need to wait the full 15 minutes." If near the end of the 15-minute assessment period and the control room staff has not been able to attempt containment isolation or the EC is not convinced that an isolation attempt has been successful, then this EAL is exceeded and classification should be made at or before the 15-minute assessment time expires.Definitions:
UNISOLABLE:
A breach or leak that cannot be promptly isolated from the Control Room.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: CB3-L HCGS ECG -EAL Technical Bases EP-HC-111-223 EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, Table 5-F-2 Containment Barrier Loss 3.A 2. HC.OP-EO.ZZ-0102(Q)-FC Primary Containment Control Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: CB3-L HCGS ECG -EAL Technical Bases EP-HC-1 11-223 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: CB3-L HCGS ECG -EAL Technical Bases EP-HC-1 11-223 EAL Category: Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Point Value: F -Fission Product Barrier Degradation RCS Leakage, Leak Isolation, PC Venting Loss of Containment 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown CB4-L (3 points)EAL: Intentional primary containment venting per EOPs Basis: These thresholds address incomplete primary containment isolation that allows direct release to the environment.
Site specific EOPs may direct containment isolation valve logic(s) to be intentionally bypassed, regardless of radioactivity release rates. Under these conditions with a valid containment isolation signal, the containment should also be considered lost if containment venting is actually performed.
Intentional venting of primary containment for primary containment pressure control per EOPs to the secondary containment and/or the environment is considered a loss of Containment.
Containment venting for pressure when not in an accident situation should not be considered.
Explanation/Discussion/Definitions:
Step DW/P-17 or DW/P-20 of EOP 102, Primary Containment Control, may specify primary containment venting and intentional bypassing of the containment isolation valve logic, even if offsite radioactivity release rate limits are exceeded.
The threshold is met when the operator begins venting the primary containment in accordance with EOP 318, not when actions are taken to bypass interlocks prior to opening the vent valves. Purge and vent actions specified in Step DW/P-1 of EOP 102 to control primary containment pressure below the drywell high pressure scram setpoint does not meet this threshold because such action is only permitted if offsite radioactivity release rates will remain below the ODCM limits.Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: CB4-L HCGS ECG -EAL Technical Bases EP-HC-1 11 -223 EAL Bases Reference(s):
1.2.3.NEI 99-01, Rev. 05, Table 5-F-2 Containment Barrier Loss 3.B HC.OP-EO.ZZ-0102(Q)-FC Primary Containment Control HC.OP-EO.ZZ-318 (Q)-Containment Venting Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: CB4-L HCGS ECG -EAL Technical Bases EP-HC-1 11-223 EAL Category: Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Point Value: EAL: F -Fission Product Barrier Degradation RCS Leakage, Leak Isolation, PC Venting Loss of Containment 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown CB5-L (3 points)UNISOLABLE primary system leakage outside primary containment (after isolation from the Control Room has or should have been attempted) as indicated by exceeding EITHER of the following:
- ANY EOP 103 Reactor Bldg room temperature Table 1, Column 2* ANY Reactor Bldg rad level> 1000 times normal Basis: This threshold addresses incomplete primary containment isolation that allows direct release to the environment.
In addition, The presence of area radiation or temperature Max Safe Operating setpoints indicating UNISOLABLE primary system leakage outside the primary containment are addressed after a containment isolation.
The indicators should be confirmed to be caused by RCS leakage.There is no Potential Loss threshold associated with this item.Explanation/Discussion/Definitions:
The presence of elevated general area temperatures or radiation levels in the Reactor Building may be indicative of UNISOLABLE primary system leakage outside the primary containment.
The maximum safe operating values define this Containment barrier threshold because they are indicative of problems in the secondary containment that are spreading and pose a threat to achieving a safe plant shutdown.
This threshold addresses problematic discharges outside primary containment that may not originate from a high-energy line break.The locations into which the primary system discharge is of concern correspond to the areas addressed in EOP 103 Reactor Building Control.Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: CB5-L HCGS ECG -EAL Technical Bases EP-HC-1 11-223 RB maximum safe operating temperatures are conservatively defined by the qualification temperature of safety related equipment in the area. The equipment qualification program has proven that safety related equipment will perform satisfactorily to at least this temperature.
In an area with multiple components and different qualification temperatures, the maximum safe operating temperature assigned to that area is generally the lowest of the individual temperatures.
In general, multiple indications should be used to determine if a primary system is discharging outside primary containment.
For example, a high area radiation condition does not necessarily indicate that a primary system is discharging into the secondary containment since this may be caused by radiation shine from nearby steam lines or the movement of radioactive materials.
Conversely, a high area radiation condition in conjunction with other indications (e.g. room flooding, high area temperatures, reports of steam in the secondary containment, an unexpected rise in feedwater flowrate, or unexpected main turbine control valve closure)may indicate that a primary system is discharging into the secondary containment.
This EAL allows for valve closure from the Control Room to isolate any systems not completely isolated, prior to event classification.
Isolation is defined as the closure of ANY valve from the Control Room in the system(s) not completely isolated.
For example, if the isolation logic fails to cause valve closure, but operator actions implemented in the Control Room successfully isolates the containment breach/leak path, then classification under this EAL is not warranted.
This includes Motor Operated Valves not controlled by the isolation logic, but that are controlled from the Control Room.Although this EAL ALLOWS for valve closure from the Control Room, the time to attempt closure and make a decision if containment leak isolation was successful RUNS CONCURRENTLY with the EAL 15-minute assessment clock." If, during the EAL 15-minute assessment period attempts from the Control Room to isolate the containment ARE SUCCESSFUL then, this EAL is NOT exceeded and classification per this EAL should NOT be made.* If, during the EAL 15-minute assessment period attempts from the Control Room to isolate the containment ARE NOT SUCCESSFUL then, this EAL is exceeded and classification should be made at that time. There is no need to wait the full 15 minutes." If near the end of the 15 minute assessment period and the control room staff has not been able to attempt containment isolation or the EC is not convinced that an isolation attempt has been successful, then this EAL is exceeded and classification should be made at or before the 15-minute assessment time expires.Definitions:
UNISOLABLE:
A breach or leak that cannot be promptly isolated from the Control Room.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: CB5-L HCGS ECG -EAL Technical Bases EP-HC-1 11 -223 EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, Table 5-F-2 Containment Barrier Loss 3.C 2. HC.OP-EO.ZZ-0103/4(Q)-FC Reactor Building and Rad Release Control Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: CB5-L HCGS ECG -EAL Technical Bases EP-HC-1 11-223 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: CB5-L HCGS ECG -EAL Technical Bases EP-HC-1 11-223 EAL Category: Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Point Value: F -Fission Product Barrier Degradation EC Judgment Loss of Containment 1 -Power Operations, 2 -Startup, 3 -Hot Shutdown CB6-L (3 points)EAL: ANY condition in the opinion of the Emergency Coordinator that indicates loss of the Containment barrier Basis: This threshold addresses any other factors that are to be used by the Emergency Coordinator in determining whether the Containment barrier is lost. In addition, the inability to monitor the barrier should also be incorporated in this threshold as a factor in Emergency Coordinator judgment that the barrier may be considered lost.The Containment barrier should not be declared 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.
Explanation/Discussion/Definitions:
The Emergency Coordinator judgment threshold addresses any other factors relevant to determining if the Containment barrier is lost. Such a determination should include IMMINENT barrier degradation, barrier monitoring capability and dominant accident sequences." Barrier degradation exists if the degradation will likely occur within two hours based on a projection of current safety system performance.
- Barrier monitoring capability is decreased if there is a loss or lack of reliable indicators.
This assessment should include instrumentation operability concerns, readings from portable instrumentation and consideration of offsite monitoring results.Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: CB6-L HCGS ECG -EAL Technical Bases EP-HC-1 11-223 Dominant accident sequences lead to degradation of all fission product barriers and likely entry to the EOPs. The Emergency Coordinator should be mindful of the Loss of AC power (Station Blackout) and ATWS EALs to assure timely emergency classification declarations.
Definitions:
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 within approximately 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> (unless a different time is specified).
EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, Table 5-F-2 Containment Loss 6.A Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: CB6-L EALs for: Cold Shutdown Conditions
HCGS ECG -EAL Technical Bases EP-HC-1 11-224 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
C -Cold Shutdown / Refuel System Malfunction 1 -Loss of AC Power AC power capability to vital buses reduced to a single power source for 15 minutes or longer such that any additional single failure would result in complete loss of AC power to vital buses 4 -Cold Shutdown, 5 -Refueling EAL# & Classification Level: CUl.1 -UNUSUAL EVENT EAL: Loss of 4.16 KV Vital Bus Power Sources (Offsite and Onsite) which results in the availability of only one 4.16 KV Vital Bus Power Source (Offsite or Onsite)AND_ 15 minutes have elapsed (Note 3)Note 3: The Emergency Coordinator 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.Basis: The condition indicated by this EAL is the degradation of the offsite and onsite AC power systems such that any additional single failure would result in a complete loss of AC power to vital buses. This condition could occur due to a loss of off-site power with a concurrent failure of all but one emergency diesel generator to supply power to its vital bus. The subsequent loss of this single power source would escalate the event to an ALERT in accordance with EAL CA1.1.Fifteen minutes was selected as a threshold to exclude transient or momentary losses of power.Explanation/Discussion/Definitions: "Availability" means the power source can be aligned to provide power to a vital bus within 15 minutes or is currently supplying power to at least one vital bus.Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: CUl.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-224 The availability of EDGs that have not been challenged to start during degradation of AC power sources to the 4.16 KV vital buses should be based on meeting Technical Specification action requirements for loss of offsite AC power sources.The AC power distribution is summarized in Attachment 2, page 2.Emergency Classification escalates to an ALERT under EAL CA1.1 based on a loss of all offsite and all onsite AC power to all 4.16 KV vital buses.This cold condition Unusual Event EAL is equivalent to the hot condition Alert EAL SA1.1.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05 -CU3 Example EAL #1 2. 205415-A-8765 Sheet 1 500 kv Transmission Plan & Profiles 3. E-0001-0 sheet 1 Hope Creek Generating Station Single Line Diagram 4. UFSAR 8.1.2 Onsite Power Systems 5. HCGS Technical Specifications 3.8.1.2, A.C. Sources-Shutdown Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: C U 1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-224 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
C -Cold Shutdown / Refuel System Malfunction 1 -Loss of AC Power Loss of all offsite and all onsite AC power to vital buses for 15 minutes or longer 4 -Cold Shutdown, 5 -Refueling, D -Defueled EAL# & Classification Level: CAl.1 -ALERT EAL: Loss of all Power (Onsite and Offsite) to all 4.16 KV Vital Buses AND> 15 minutes have elapsed (Note 3)Note 3: The Emergency Coordinator 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.Basis: Loss of all AC power compromises all plant safety systems requiring electric power including RHR, ECCS, Spent Fuel Pool Cooling and Service Water.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, increasing the time to restore one of the vital busses, relative to that specified for the SITE AREA EMERGENCY EAL.Escalating to SITE AREA EMERGENCY, if appropriate, is by EALs in Category R, Abnormal Rad Levels / RadEffluent.
Fifteen minutes was selected as a threshold to exclude transient or momentary power losses.Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: CA 1.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-224 Explanation/Discussion/Definitions:
The intent of this EAL is to classify degraded AC power events that result in a loss of all offsite power sources 13.8 KV to the 4.16 KV vital buses along with a loss of all onsite power sources (EDGs).The AC power distribution is summarized in Attachment 2, page 2.This cold condition Alert EAL is equivalent to the hot condition Site Area Emergency EAL SS1.1.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05 -CA3 Example EAL #1 2. HC.OP-AB.ZZ-01 35 (Q) Station Blackout / Loss of Offsite Power / Diesel Generator Malfunction
- 3. 205415-A-8765 Sheet 1 500 kv Transmission Plan & Profiles 4. E-0001-0 sheet 1 Hope Creek Generating Station Single Line Diagram 5. UFSAR 8.1.2 Onsite Power Systems 6. HCGS Technical Specifications 3.8.1.2, A.C. Sources-Shutdown Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: CA1.1 HCGS ECG -EAL Technical Bases EP-HC-111-225 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
C -Cold Shutdown / Refuel System Malfunction 2 -Loss of DC Power Loss of required DC power for 15 minutes or longer 4 -Cold Shutdown, 5 -Refueling EAL# & Classification Level: CU2.1 -UNUSUAL EVENT EAL: Loss of ANY of the following Vital 125 V DC Power Channel combinations as indicated by Voltage < 108 V DC:* Channel A and Channel B* Channel A, Channel C (either bus) and Channel D (either bus)" Channel B, Channel C (either bus) and Channel D (either bus)AND> 15 minutes have elapsed (Note 3)Note 3: The Emergency Coordinator 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.Basis: The purpose of this EAL 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 EAL CA4.1.Fifteen minutes was selected as a threshold to exclude transient or momentary power losses.Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: CU2.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-225 Explanation/Discussion/Definitions:
Per Technical Specifications, 108 VDC is the minimum voltage required for operability of the Class lE 125 VDC buses following a battery discharge test. Although continued equipment operation may occur with degraded voltage, this value signifies the minimum operable voltage allowed.125 VDC Power Channels A-D provide control power to Engineered Safety Features actuation, diesel generator auxiliaries, plant alarm and indication circuits, as well as the control power for the associated loads. If 125 VDC power is lost for an extended period of time (greater than 15 minutes) critical plant functions such as 4.16 KV breaker controls, CS and RHR pump controls required to maintain safe plant conditions may not operate, and core uncovery with subsequent Reactor Coolant System (RCS) and Primary Containment failure might occur. Both the RCS and Primary Containment may already be open if in the Refueling mode.In Operational Condition 4 or 5, a minimum of two of the four 125 VDC Power Channels are required by Technical Specifications, including either Channel A (10D410) or Channel B (1 0D420). With the loss of three of the Channels (two if both Channels A and B are lost) core alterations are to be suspended and handling of recently irradiated fuel in the Secondary Containment and operations with a potential for draining the reactor vessel are to be stopped.Class 1 E 125 VDC battery bank capacities are as follows: Channel Switchqear Battery Capacity (desiqn 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />)A 10D410 1AD411 1885 AH at 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> B 10D420 1BD411 1885 AH at 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> C 10D430 1 CD411 1885 AH at 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> D 10D440 1 DD411 1885 AH at 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> C 10D436 1CD447 577 AH at 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> D 10D446 1 DD447 577 AH at 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> This Unusual Event EAL is the cold condition equivalent of the hot condition loss of DC power Site Area Emergency EAL SS2.1.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: CU2.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-225 EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, CU7 Example EAL #1 2. Calculation E-4.1(Q) HC Class 1E 125 VDC Station Battery and Charger Sizing 3. UFSAR 8.3.2 DC Power Systems 4. HCGS Technical Specifications 3.8.2.2, DC Sources -Shutdown 5. HC.OP-AB.ZZ-0135 (Q) Station Blackout/Loss of Offsite Power/Diesel Generator Malfunction, Table 5.3 Battery Bank Capacities Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: CU2.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-225 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: CU2.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-226 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
C -Cold Shutdown / Refuel System Malfunction 3 -RPV Level UNPLANNED loss of RPV inventory 4 -Cold Shutdown EAL# & Classification Level: CU3.1 -UNUSUAL EVENT EAL: RCS leakage results in the inability to maintain or restore RPV level > +12.5 in.AND> 15 minutes have elapsed (Note 3)Note 3: The Emergency Coordinator 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.Basis: This EAL 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 EAL. However, a relief valve that operates and fails to close per design should be considered applicable to this EAL if the relief valve cannot be isolated.Prolonged loss of RCS Inventory may result in escalation to the ALERT emergency classification level via either EAL CA3.1 or EAL CA4.1.Explanation/Discussion/Definitions:
+12.5 in. is the RPV low water level scram setpoint.RPV water level is normally monitored using the instrument ranges in Attachment 2, page 5.In preparation for RPV floodup and refueling operations, the shutdown range instrument transmitter LT-N027 is valved out and replaced with LT-1 1683. The shutdown range indication is thus expanded to 0" -550".Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: CU3.1 HCGS ECG -EAL Technical Bases EP-HC-11 11-226 Definitions:
UNPLANNED:
A parameter change or an event that is not the result of an intended evolution and requires corrective or mitigative actions.EAL Basis Reference(s):
- 1. NEI 99-01, Rev. 05, CUl Example EAL #1 2. Technical Specifications Table 2.2.1-1 Reactor Protection System Instrumentation Setpoints 3. Technical Specifications Figure B3/4-3-1, Reactor Vessel Water Level 4. HC.OP-IO.ZZ-0005(Q)
Cold Shutdown to Refueling 5. HC.IC-GP.BB-0003(Q)
Nuclear Boiler- Nondivisional Channel LT-11683/
B21-N027 Rx Cavity Flood Up Level / Rx Shutdown Range Level Setup Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: CU3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-226 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
C -Cold Shutdown / Refuel System Malfunction 3 -RPV Level UNPLANNED loss of RPV inventory 5 -Refueling EAL# & Classification Level: CU3.2 -UNUSUAL EVENT EAL: RPV level CANNOT be monitored with a loss of RPV inventory as indicated by ANY unexplained RPV leakage indication, Table C-1 (Note 8)Note 8: Loss of inventory in the refueling pathway may raise radiation levels.Consider classification under EAL RU2.1.Table C-1 RPV Leakage Indications" Drywell equipment drain sump level rise* Drywell floor drain sump level rise* Reactor Building equipment drain sump level rise* Reactor Building floor drain sump level rise" Suppression pool level rise* Observation of RCS leakage that is UNISOLABLE Basis: This EAL is a precursor of more serious conditions and considered to be a potential degradation of the level of safety of the plant.This EAL addresses conditions in the Refueling OPCON when normal means of RPV level indication may not be available.
Redundant means of RPV 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 RPV inventory event, the operators would need to determine that RPV inventory loss was occurring by Table C-1 indications.
Table C-1 RPV leakage indications must be evaluated against other Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: CU3.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-226 potential sources of leakage such as cooling water sources inside the Primary and Secondary Containments to ensure they are indicative of RPV leakage.Escalation to the ALERT emergency classification level would be via EAL CA3.2 or EAL CA4.1.Explanation/Discussion/Definitions:
In preparation for RPV floodup and refueling operations, the shutdown range instrument transmitter LT-N027 is valved out and replaced with LT-1 1683. The shutdown range indication is thus expanded to 0" -550". During refueling operations, visual observation by personnel on the refuel floor in communication with the Control Room may also provide indication of reactor cavity water level and RPV water level.In this EAL, all RPV level indication is unavailable and the RPV inventory loss must be detected by the leakage indications listed in Table C-1. Level increases must be evaluated against other potential sources of leakage such as cooling water sources inside the drywell to ensure they are indicative of RPV leakage. Drywell equipment and floor drain sump level rise is the normal method of monitoring and calculating leakage from the RPV. A Reactor Building equipment or floor drain sump level rise may also be indicative of RPV inventory losses external to the Primary Containment from systems connected to the RPV. With RHR System operating in the Shutdown Cooling mode, an unexplained rise in suppression pool level could be indicative of RHR valve misalignment or leakage. Visual observation of leakage from systems connected to the RCS in areas outside the Primary Containment that cannot be isolated could be indicative of a loss of RPV inventory.
Definitions:
UNPLANNED:
A parameter change or an event that is not the result of an intended evolution and requires corrective or mitigative actions.UNISOLABLE:
A breach or leak that cannot be promptly isolated from the Control Room.EAL Bases Reference(s):
Nuclear Boiler -Nondivisional Channel LT-1 1683/ B21-N027 Rx Cavity Flood Up Level / Rx Shutdown Range Level Setup 3. UFSAR 5.2.5 Detection of Leakage Through the Reactor Coolant Pressure Boundary and from the Emergency Core Cooling System 4. UFSAR 7.6.1.3 Leak Detection System -Instrumentation and Controls 5. HC.OP-EO.ZZ-01 02(Q)-FC Primary Containment Control 6. HC.OP-GP.ZZ-0005(Q)
Drywell Leak Source Detection Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: CU3.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-226 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: EAL: C -Cold Shutdown / Refuel System Malfunction 3 -RPV Level UNPLANNED loss of RPV inventory 5 -Refueling CU3.3 -UNUSUAL EVENT UNPLANNED RPV level drop as indicated by EITHER of the following:
- RPV level drop below the RPV flange level of +217.5 in. for _ 15 minutes (Notes 3 and 8)* RPV level drop below the planned RPV level band (when RPV level is being controlled below the RPV flange) for a given (planned) evolution for _ 15 minutes (Notes 3 and 8)Note 3: The Emergency Coordinator 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.Note 8 Loss of inventory in the refueling pathway may raise radiation levels.Consider classification under EAL RU2.1.Basis: This EAL 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 decrease RPV water level below the RPV flange are carefully planned and procedurally controlled.
An UNPLANNED event that results in water level decreasing below the RPV flange, or below the planned RPV water level for the given evolution (if the planned RPV water level is already below the RPV flange), warrants declaration of a UE due to the reduced RPV 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.Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: CU3.3 HCGS ECG -EAL Technical Bases EP-HC-1 11-226 Continued loss of RCS Inventory will result in escalation to the ALERT emergency classification level via either EAL CA3.1 or EAL CA4.1.This EAL involves a decrease in RPV level below the top of the RPV flange that continues for 15 minutes due to an UNPLANNED event. This EAL is not applicable to decreases in flooded reactor cavity level, which is addressed by EAL RU2.1, until such time as the level decreases to the level of the RPV flange.Explanation/Discussion/Definitions:
+217.5 in. is the RPV flange level.RPV water level is normally monitored using the instrument ranges in Attachment 2, page 5.In preparation for RPV floodup and refueling operations, the shutdown range instrument transmitter LT-N027 is valved out and replaced with LT-1 1683. The shutdown range indication is thus expanded to 0" -550". During refueling operations, visual observation by personnel on the refuel floor in communication with the Control Room may also provide indication of reactor cavity water level and RPV water level.In cold conditions, RPV level may be intentionally lowered below the RPV flange (e.g., detensioning the RPV head, etc.). For such evolutions, this EAL is applicable if RPV level cannot be restored and maintained within the prescribed target band.Definitions:
UNPLANNED:
A parameter change or an event that is not the result of an intended evolution and requires corrective or mitigative actions.EAL Basis Reference(s):
Cold Shutdown to Refueling 3. Technical Specifications Figure B3/4-3-1, Reactor Vessel Water Level 4. HC.IC-GP.BB-0003(Q)
Nuclear Boiler -Nondivisional Channel LT-11683/
B21-N027 Rx Cavity Flood Up Level / Rx Shutdown Range Level Setup Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: CU3.3 HCGS ECG -EAL Technical Bases EP-HC-1 11-226 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
C -Cold Shutdown / Refuel System Malfunction 3- RPV Level Loss of RPV inventory 4 -Cold Shutdown, 5 -Refueling EAL# & Classification Level: CA3.1 -ALERT EAL: RPV compensated level < -38 in.Basis: This EAL serves as a precursor 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 RPV level decrease and potential core uncovery.
This condition will result in a minimum emergency classification level of an ALERT.The Low-Low ECCS Actuation SetpointlLevel 2 was chosen because it is a standard setpoint at which some available injection systems automatically start. The inability to restore and maintain level after reaching this setpoint would be indicative of a failure of the RCS barrier.If RPV level continues to lower then escalation to SITE AREA EMERGENCY will be via EAL CS3.1.Explanation/Discussion/Definitions:
The threshold RPV level of -38 in. is the low-low ECCS actuation setpoint.
RPV level is normally monitored using compensated level as read directly from SPDS or the compensation curves in the lOs. In Cold Shutdown mode, the RCS will normally be intact and standard RPV level monitoring means are available.
In the Refueling mode, the RCS is not intact and RPV level may be monitored by different means, including the ability to monitor level visually.In cold shutdown, the decay heat available to raise RCS temperature during a loss of inventory or heat removal event may be significantly greater than in the Refueling OPCON.Entry into cold shutdown conditions may be attained within hours of operating at power or hours after refueling is completed.
Entry into the Refueling OPCON procedurally may not occur for typically a few days 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 Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: CA3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-226 the Refueling OPCON 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).
EAL Basis Reference(s):
- 1. NEI 99-01, Rev. 05, CA1 Example EAL #1 2. HCGS Technical Specifications Table 3.3.3-2, ECCS Actuation Instrumentation Setpoints 3. HCGS Technical Specifications Figure B3/4-3-1 Reactor Vessel Water Level 4. HC.OP-IO.ZZ-0005(Q)
Cold Shutdown to Refueling 5. HC.OP-IO.ZZ-0009 (Q) Refueling Operations
- 6. HC.OP-AB.RPV-0009(Q)
Shutdown Cooling Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: CA3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-226 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
C -Cold Shutdown / Refuel System Malfunction 3 -RPV Level Loss of RPV inventory 4 -Cold Shutdown, 5 -Refueling EAL# & Classification Level: CA3.2 -ALERT EAL: RPV level CANNOT be monitored for _ 15 minutes with a loss of RPV inventory as indicated by ANY unexplained RPV leakage indication, Table C-1 (Note 3)Note 3: The Emergency Coordinator 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.Table C-1 RPV Leakage Indications" Drywell equipment drain sump level rise* Drywell floor drain sump level rise* Reactor Building equipment drain sump level rise* Reactor Building floor drain sump level rise* Suppression pool level rise* Observation of RCS leakage that is UNISOLABLE Basis: This EAL serves as a precursor 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 RPV level decrease and potential core uncovery.
This condition will result in a minimum emergency classification level of an ALERT.In the Cold Shutdown OPCON, normal RPV level instrumentation systems will usually be available.
In the Refueling OPCON, normal means of RPV level indication may not be available.
Redundant means of RPV 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.
Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: CA3.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-226 However, if all level indication were to be lost during a loss of RPV inventory event, the operators would need to determine that RPV inventory loss was occurring by observing Table C-1 indications.
Table C-1 RPV leakage indications must be evaluated against other potential sources of leakage such as cooling water sources inside the Primary and Secondary Containments to ensure they are indicative of RPV leakage.The 15-minute duration for the loss of level indication was chosen because it is half of the EAL CS3.2 SITE AREA EMERGENCY duration.
Significant fuel damage is not expected to occur until the core has been uncovered for greater than 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> per the analysis referenced in the EAL CG3.1 and EAL CG3.2 bases. Therefore this EAL meets the definition for an ALERT.If RPV leakage indications continue and RPV level cannot be monitored for 30 minutes or longer, EAL CS3.2 will require escalation to SITE AREA EMERGENCY.
Explanation/Discussion/Definitions:
In this EAL, all RPV level indication is unavailable and the RPV inventory loss must be detected by the leakage indications listed in Table C-1. Level increases must be evaluated against other potential sources of leakage such as cooling water sources inside the drywell to ensure they are indicative of RPV leakage. Drywell equipment and floor drain sump level rise is the normal method of monitoring and calculating leakage from the RPV. A Reactor Building equipment or floor drain sump level rise may also be indicative of RPV inventory losses external to the Primary Containment from systems connected to the RPV. With RHR System operating in the Shutdown Cooling mode, an unexplained rise in suppression pool level could be indicative of RHR valve misalignment or leakage. Visual observation of leakage from systems connected to the RCS in areas outside the Primary Containment that cannot be isolated could be indicative of a loss of RPV inventory.
In cold shutdown, the decay heat available to raise RCS temperature during a loss of inventory or heat removal event may be significantly greater than in the Refueling OPCON.Entry into cold shutdown conditions may be attained within hours of operating at power or hours after refueling is completed.
Entry into the Refueling OPCON procedurally may not occur for typically a few days 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 OPCON 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).
Definitions:
UNISOLABLE:
A breach or leak that cannot be promptly isolated from the Control Room.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: CA3.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-226 EAL Basis Reference(s):
Nuclear Boiler -Nondivisional Channel LT-1 1683 / B21-N027 Rx Cavity Flood Up Level / Rx Shutdown Range Level Setup 3. UFSAR 5.2.5 Detection of Leakage Through the Reactor Coolant Pressure Boundary and from the Emergency Core Cooling System 4. UFSAR 7.6.1.3 Leak Detection System -Instrumentation and Controls 5. HC.OP-EO.ZZ-0102(Q)-FC Primary Containment Control 6. HC.OP-GP.ZZ-0005(Q)
Drywell Leak Source Detection Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: CA3.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-226 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: CA3.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-226 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
C -Cold Shutdown / Refuel System Malfunction 3 -RPV Level Loss of RPV inventory affecting core decay heat removal capability 4 -Cold Shutdown, 5 -Refueling EAL# & Classification Level: CS3.1 -SITE AREA EMERGENCY EAL: CONTAINMENT CLOSURE NOT established AND RPV compensated level < -44 in.OR CONTAINMENT CLOSURE established AND RPV compensated level < -161 in.Basis: Under the conditions specified by this EAL, continued decrease in RPV 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 EAL CG3.1 or EAL RG1.1.Explanation/Discussion/Definitions:
When RPV level decreases to -44 in., water level is six inches below the low-low ECCS actuation setpoint of -38 in. When RPV level drops to the top of active fuel (an indicated RPV level of -161 in.), core uncovery starts to occur. RPV level is normally monitored using compensated level as read directly from SPDS or the compensation curves in the lOs.The inability to restore and maintain level after reaching this setpoint infers a failure of the RCS barrier and Potential Loss of the Fuel Clad barrier.Sustained core uncovery can result in core damage and a significant release of fission products to the RCS and could ultimately challenge the Containment barrier. When all irradiated fuel has been transferred to the Spent Fuel Pool, however, core uncovery in the RPV is not possible and thus this EAL does not apply.I Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: CS3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11 -226 CONTAINMENT CLOSURE can be established by meeting the requirements of any of the following: " OP-HC-1 08-115-1001, Operability Assessment and Equipment Control Program, Attachment 5* Technical Specifications 3.6.5.1, Secondary Containment Integrity" Technical Specifications 3.6.1.1, Primary Containment Integrity Definitions:
CONTAINMENT CLOSURE: Is the procedurally defined actions taken to secure the Containment (Primary or Secondary) and its associated structures, systems, and components as a functional barrier to fission product release under existing plant conditions.
EAL Basis Reference(s):
- 1. NEI 99-01, Rev. 05, CS1 Example EAL #1 & #2 2. OU-AA-103 Shutdown Safety Management Program 3. HCGS Technical Specifications Table 3.3.3-2, ECCS Actuation Instrumentation Setpoints 4. HCGS Technical Specifications Figure B3/4-3-1, Reactor Vessel Water Level 5. HC.OP-AM-ZZ-0001 (Z) Severe Accident Guidelines
- 6. OP-HC-1 08-115-1001 Operability Assessment and Equipment Control Program 7. Technical Specifications 3.6.5.1 Secondary Containment Integrity 8. Technical Specifications 3.6.1.1 Primary Containment Integrity Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: CS3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-226 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: C -Cold Shutdown / Refuel System Malfunction 3 -RPV Level Loss of RPV inventory affecting core decay heat removal capability 4 -Cold Shutdown, 5 -Refueling CS3.2 -SITE AREA EMERGENCY EAL: RPV level CANNOT be monitored for ? 30 minutes with a loss of RPV inventory as indicated by EITHER of the following (Note 3):* Erratic Source Range Monitor indication
- ANY unexplained RPV leakage indication, Table C-1 Note 3: The Emergency Coordinator 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.Table C-1 RPV Leakage Indications 0 Drywell equipment drain sump level rise" Drywell floor drain sump level rise" Reactor Building equipment drain sump level rise" Reactor Building floor drain sump level rise" Suppression pool level rise* Observation of RCS leakage that is UNISOLABLE Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: CS3.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-226 Basis: Under the conditions specified by this EAL, continued decrease in RPV 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 EAL CG3.2 or EAL RG1.1.In the Cold Shutdown OPCON, normal RPV level indication will usually be available.
In the Refueling OPCON, normal means of RPV level indication may not be available.
Redundant means of RPV 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 RPV inventory event, the operators would need to determine that RPV inventory loss was occurring by observing Table C-1 indications.
Table C-1 RPV leakage indications must be evaluated against other potential sources of leakage such as cooling water sources inside the Primary and Secondary Containments to ensure they are indicative of RPV leakage.The 30-minute duration allows sufficient time for actions to be performed to recover inventory control equipment.
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.
Explanation/Discussion/Definitions:
This EAL applies to conditions in which the loss of decay heat removal capability has caused a significant drop in RPV water level and core uncovery may be challenged.
If RPV level monitoring capability is unavailable, the RPV inventory loss must be detected by erratic source range monitor indications or the leakage indications listed in Table C-1: Erratic source range monitor indication may be identified by: o SRM count rate recorders R602A and B (blue pens) on panel 10C650C o SRM upscale status lights on source range neutron monitoring section of the Control Room panel o Overhead Annunciators C3-Cl (SRM UPSCALE OR INOPERATIVE) and C3-D1 (SRM PERIOD)o Computer points C015, B3027, B3028, B3029, B3030 Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: CS3.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-226 The leakage indications are listed in Table C-land level increases must be evaluated against other potential sources of leakage such as cooling water sources inside the drywell to ensure they are indicative of RPV leakage. Drywell equipment and floor drain sump level rise is the normal method of monitoring and calculating leakage from the RPV. A Reactor Building equipment or floor drain sump level rise may also be indicative of RPV inventory losses external to the Primary Containment from systems connected to the RPV. With RHR System operating in the Shutdown Cooling mode, an unexplained rise in suppression pool level could be indicative of RHR valve misalignment or leakage. Visual observation of leakage from systems connected to the RCS in areas outside the Primary Containment that cannot be isolated could be indicative of a loss of RPV inventory.
Definitions:
UNISOLABLE:
A breach or leak that cannot be promptly isolated from the Control Room.EAL Basis Reference(s):
- 1. NEI 99-01, Rev. 05, CS1 Example EAL #3 2. Technical Specifications 3.3.7.6, Source Range Monitors 3. Technical Specifications 3.9.2, Instrumentation
-Refueling Operations
- 4. HC.OP-AR.ZZ-0009(Q), Overhead Annunciator Window Box C3 5. UFSAR 5.2.5 Detection of Leakage Through Reactor Coolant Pressure Boundary and From the Emergency Core Cooling System 6. UFSAR 7.6.1.3 Leak Detection System -Instrumentation and Controls 7. HC.OP-EO.ZZ-0102(Q)-FC Primary Containment Control 8. HC.OP-GP.ZZ-0005(Q)
Drywell Leak Source Detection Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: CS3.2 HCGS ECG -EAL Technical Bases EP-HC-1 11 -226 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: CS3.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-226 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
C -Cold Shutdown / Refuel System Malfunction 3 -RPV Level Loss of RPV inventory affecting fuel clad integrity with Containment challenged 4 -Cold Shutdown, 5 -Refueling EAL# & Classification Level: CG3.1 -GENERAL EMERGENCY EAL: RPV compensated level < -161 in. for > 30 minutes (Note 3)AND ANY Containment Challenge indication, Table C-2 Note 3: The Emergency Coordinator 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.Table C-2 Containment Challenge Indications
- CONTAINMENT CLOSURE NOT established" Indications of 2 6% H 2 and -_ 5% 02 in Drywell or Torus* UNPLANNED rise in Drywell pressure* ANY Reactor Bldg rad level > 1000 times normal Basis: This EAL represents the inability to restore and maintain RPV level to above the top of active fuel with containment challenged.
Fuel damage is probable if RPV level cannot be restored, as available decay heat will cause boiling, further reducing the RPV 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 GENERAL EMERGENCY.
The Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: CG3.1 HCGS ECG -EAL Technical Bases EP-HC-111-226 GENERAL EMERGENCY 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: initial RPV level, RHR system shutdown cooling heat removal capability, etc.Analysis indicates that core damage may occur as soon as one 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.Explanation/Discussion/Definitions:
When RPV compensated level drops to the top of active fuel (an indicated RPV level of -161 in.), core uncovery starts to occur.Four conditions are associated with a challenge to Containment: " The status of CONTAINMENT CLOSURE indicates the ability to rely on the Primary or Secondary Containment as a barrier to fission product release. CONTAINMENT CLOSURE can be established by meeting the requirements of any of the following: " OP-HC-108-115-1001, Operability Assessment and Equipment Control Program, Attachment 5* Technical Specifications 3.6.5.1, Secondary Containment Integrity" Technical Specifications 3.6.1.1, Primary Containment Integrity" Explosive (deflagration) mixtures in the Drywell or Torus are assumed to be elevated concentrations of hydrogen and oxygen. BWR industry evaluation of hydrogen generation for development of EOPs/SAGs indicates that any hydrogen concentration above minimum detectable is not to be expected within the short term. Post-LOCA hydrogen generation primarily caused by radiolysis is a slowly evolving, long-term condition.
Hydrogen concentrations that rapidly develop are most likely caused by metal-water reaction.
A metal-water reaction is indicative of an accident more severe than accidents considered in the plant design basis and would be indicative, therefore, of a potential threat to primary containment integrity.
Hydrogen concentration of 2! 6%and oxygen concentration of 2 5% are considered the global deflagration concentration limits (ref. 4). Elevated Containment hydrogen concentration is alarmed at > 2% by overhead annunciator E3-F5, H2/02 ANALYZER TROUBLE, and digital alarm points D4203 and D4212.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: CG3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-226" An UNPLANNED rise in Drywell pressure in the Cold Shutdown or Refueling OPCON may signify an energy addition to the Primary Containment such that the Primary Containment cannot be relied upon as a barrier to fission product release.* Reactor Building area radiation monitors should provide indication of increased release that may be indicative of a challenge to CONTAINMENT CLOSURE. The Maximum Safe Operating radiation level is 1000 times normal and is indicative of problems in the Secondary Containment that may be spreading.
The Table C-2 Containment Challenge Indications applicable in the Refueling OPCON may likely consist only of the status of Secondary Containment and Reactor Building radiation levels. The Primary Containment is opened to the Secondary Containment in this OPCON and it is unlikely, if not impossible, to detect hydrogen concentrations in the deflagration range or rising Drywell pressure indications.
Definitions:
CONTAINMENT CLOSURE: Is the procedurally defined actions taken to secure the Containment (Primary or Secondary) and its associated structures, systems, and components as a functional barrier to fission product release under existing plant conditions.
UNPLANNED:
A parameter change or an event that is not the result of an intended evolution and requires corrective or mitigative actions.EAL Basis Reference(s):
- 1. NEI 99-01, Rev. 05, CG1 Example EAL #1 2. OU-AA-103 Shutdown Safety Management Program 3. HCGS Technical Specifications Table 3.3.3-2 ECCS Actuation Instrumentation Setpoints 4. HC.OP-AM-ZZ-0001(Z)
Severe Accident Guidelines
- 5. HC.OP-AM.ZZ-0001 (SAG-2) Containment and Radioactivity Release Control 6. HC.OP-AR.ZZ-0024(Q)
CRIDS Computer Points Book 5 D3624 thru D4288 7. HC.OP-AR.ZZ-001 6(Q) Overhead Annunciator Window Box E3 8. HC.OP-EO.ZZ-0103/4(Q)-FC Reactor Building and Rad Release Control 9. Technical Specifications 3.6.5.1 Secondary Containment Integrity 10.Technical Specifications 3.6.1.1 Primary Containment Integrity Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: CG3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-226 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: CG3.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-226 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: EAL: C -Cold Shutdown / Refuel System Malfunction 3 -RPV Level Loss of RPV inventory affecting fuel clad integrity with Containment challenged 4 -Cold Shutdown, 5 -Refueling CG3.2 -GENERAL EMERGENCY RPV level CANNOT be monitored for _> 30 minutes with core uncovery indicated by EITHER of the following (Note 3):* Erratic Source Range Monitor indication" ANY unexplained RPV leakage indication, Table C-1 AND ANY Containment Challenge indication, Table C-2 Note 3: The Emergency Coordinator 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.Table C-1 RPV Leakage Indications" Drywell equipment drain sump level rise* Drywell floor drain sump level rise* Reactor Building equipment drain sump level rise* Reactor Building floor drain sump level rise* Suppression pool level rise* Observation of RCS leakage that is UNISOLABLE Hope Creek Page 1 of 6 Rev. 0 (draft E)EAL#: CG3.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-226 Table C-2 Containment Challenge Indications" CONTAINMENT CLOSURE NOT established
- Indications of 2- 6% H 2 and 2 5% 02 in Drywell or Torus* UNPLANNED rise in Drywell pressure" ANY Reactor Bldg rad level > 1000 times normal Basis: This EAL represents the inability to restore and maintain RPV level to above the top of active fuel with containment challenged.
Fuel damage is probable if RPV level cannot be restored, as available decay heat will cause boiling, further reducing the RPV 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 GENERAL EMERGENCY.
The GENERAL EMERGENCY 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: initial RPV level, RHR system shutdown cooling heat removal capability, etc.Analysis indicates that core damage may occur as soon as one 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.Table C-1 RPV leakage indications must be evaluated against other potential sources of leakage such as cooling water sources inside the Primary and Secondary Containments to ensure they are indicative of RPV leakage.In the Cold Shutdown OPCON, normal RPV level instrumentation systems will usually be available.
In the Refueling OPCON, normal means of RPV level indication may not be available.
Redundant means of RPV 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 RPV inventory event, the operators would need to determine that RPV inventory loss was occurring by observing Table Hope Creek Page 2 of 6 Rev. 0 (draft E)EAL#: CG3.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-226 C-1 indications.
Table C-1 RPV leakage indications must be evaluated against other potential sources of leakage such as cooling water sources inside the Primary and Secondary Containments to ensure they are indicative of RPV leakage.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.
Explanation/Discussion/Defi nitions: If RPV level monitoring capability is unavailable, the RPV inventory loss must be detected by erratic source range monitor indications or the leakage indications listed in Table C-1:* Erratic source range monitor indication may be identified by: o SRM count rate recorders R602A and B (blue pens) on panel 10C650C o SRM upscale status lights on source range neutron monitoring section of the Control Room panel o Overhead Annunciators C3-Cl (SRM UPSCALE OR INOPERATIVE) and C3-D1 (SRM PERIOD)o Computer points C015, B3027, B3028, B3029, B3030* The leakage indications are listed in Table C-1 and level increases must be evaluated against other potential sources of leakage such as cooling water sources inside the drywell to ensure they are indicative of RPV leakage. Drywell equipment and floor drain sump level rise is the normal method of monitoring and calculating leakage from the RPV. A Reactor Building equipment or floor drain sump level rise may also be indicative of RPV inventory losses external to the Primary Containment from systems connected to the RPV. With RHR System operating in the Shutdown Cooling mode, an unexplained rise in suppression pool level could be indicative of RHR valve misalignment or leakage. Visual observation of leakage from systems connected to the RCS in areas outside the Primary Containment that cannot be isolated could be indicative of a loss of RPV inventory.
Four conditions are associated with a challenge to Containment:
The status of CONTAINMENT CLOSURE indicates the ability to rely on the Primary or Secondary Containment as a barrier to fission product release. CONTAINMENT CLOSURE can be established by meeting the requirements of any of the following:
- OP-HC-108-115-1001, Operability Assessment and Equipment Control Program, Attachment 5 Hope Creek Page 3 of 6 Rev. 0 (draft E)EAL#: CG3.2 HCGS ECG -EAL Technical Bases EP-HC-111-226
- Technical Specifications 3.6.5.1, Secondary Containment Integrity* Technical Specifications 3.6.1.1, Primary Containment Integrity Explosive (deflagration) mixtures in the Drywell or Torus are assumed to be elevated concentrations of hydrogen and oxygen. BWR industry evaluation of hydrogen generation for development of EOPs/SAGs indicates that any hydrogen concentration above minimum detectable is not to be expected within the short term. Post-LOCA hydrogen generation primarily caused by radiolysis is a slowly evolving, long-term condition.
Hydrogen concentrations that rapidly develop are most likely caused by metal-water reaction.
A metal-water reaction is indicative of an accident more severe than accidents considered in the plant design basis and would be indicative, therefore, of a potential threat to primary containment integrity.
Hydrogen concentration of 2_ 6%and oxygen concentration of -- 5% are considered the global deflagration concentration limits. Elevated Containment hydrogen concentration is alarmed at ? 2% by overhead annunciator E3-F5 (H2/02 ANALYZER TROUBLE) and digital alarm points D4203 and D4212." An UNPLANNED rise in Drywell pressure in the Cold Shutdown or Refueling OPCON may signify an energy addition to the Primary Containment such that the Primary Containment cannot be relied upon as a barrier to fission product release." Reactor Building area radiation monitors should provide indication of increased release that may be indicative of a challenge to CONTAINMENT CLOSURE. The Maximum Safe Operating radiation level is 1000 times normal and is indicative of problems in the Secondary Containment that may be spreading.
The Table C-2 Containment Challenge Indications applicable in the Refueling OPCON may likely consist only of the status of Secondary Containment and Reactor Building radiation levels. The Primary Containment is opened to the Secondary Containment in this OPCON and it is unlikely, if not impossible, to detect hydrogen concentrations in the deflagration range or rising Drywell pressure indications.
Definitions:
UNISOLABLE:
A breach or leak that cannot be promptly isolated from the Control Room.CONTAINMENT CLOSURE: Is the procedurally defined actions taken to secure the Containment (Primary or Secondary) and its associated structures, systems, and components as a functional barrier to fission product release under existing plant conditions.
UNPLANNED:
A parameter change or an event that is not the result of an intended evolution and requires corrective or mitigative actions.Hope Creek Page 4 of 6 Rev. 0 (draft E)EAL#: CG3.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-226 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 within approximately 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> (unless a different time is specified).
EAL Basis Reference(s):
- 1. NEI 99-01, Rev. 05, CG1 Example EAL #2 2. OU-AA-103 Shutdown Safety Management Program 3. Technical Specifications 3.3.7.6 Source Range Monitors 4. Technical Specifications
3.9.2 Instrumentation
-Refueling Operations
- 5. HC.OP-AR.ZZ-0009(Q), Overhead Annunciator Window Box C3 6. UFSAR 5.2.5 Detection of Leakage Through Reactor Coolant Pressure Boundary and From the Emergency Core Cooling System 7. UFSAR 7.6.1.3 Leak Detection System -Instrumentation and Controls 8. HC.OP-EO.ZZ-0102(Q)-FC Primary Containment Control 9. HC.OP-GP.ZZ-0005(Q)
Drywell Leak Source Detection 10. HC.OP-AM.ZZ-0001 (SAG-2) Containment and Radioactivity Release Control 11. HC.OP-AR.ZZ-0024(Q)
CRIDS Computer Points Book 5 D3624 thru D4288 12. HC.OP-AR.ZZ-001 6(Q) Overhead Annunciator Window Box E3 13. HC.OP-EO.ZZ-0103/4(Q)-FC Reactor Building and Rad Release Control 14. Technical Specifications 3.6.5.1 Secondary Containment Integrity 15.Technical Specifications 3.6.1.1 Primary Containment Integrity Hope Creek Page 5 of 6 Rev. 0 (draft E)EAL#: CG3.2 HCGS ECG -EAL Technical Bases EP-HC-111-226 This page intentionally blank Hope Creek Page 6 of 6 Rev. 0 (draft E)EAL#: CG3.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-227 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: EAL: C -Cold Shutdown / Refuel System Malfunction 4- RCS Temperature UNPLANNED loss of decay heat removal capability with irradiated fuel in the RPV 4 -Cold Shutdown, 5 -Refueling CU4.1 -UNUSUAL EVENT An UNPLANNED Loss of Decay Heat Removal functions AND RCS Temperature has risen to > 200°F Basis: This EAL 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 OPCON a large inventory of water is available to keep the core covered.During refueling, the level in the RPV will normally be maintained above the RPV flange.Refueling evolutions that decrease water level below the RPV flange are carefully planned and procedurally controlled.
Loss of forced decay heat removal at reduced inventory may result in more rapid increases in RPV temperatures depending on the time since shutdown.Escalation to ALERT would be via EAL CA3.1 based on an inventory loss or EAL CA4.1 based on exceeding its temperature criteria.Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: CU4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-227 Explanation/Discussion/Definitions:
The Technical Specification cold shutdown temperature limit is 200 0 F.RCS coolant temperature may be indicated by the following instrumentation:
- Recirc pump suction loop A and B temperature on TR-R650-B31 (10C650C)* Recirc loop temperature from the following computer points: o Recirc loop A inlet temp 1 A221 o Recirc loop A inlet temp 2 A222 o Recirc loop B inlet temp 1 A223 o Recirc loop B Inlet temp 2 A224 o Recirc loop A avg inlet temp B2042 o Recirc loop B avg inlet temp B2043* RHR A & B Hx inlet temperatures from computer points A2380 & A2382* RWCU bottom head drain temperature from computer point A2942 Definitions:
UNPLANNED:
A parameter change or an event that is not the result of an intended evolution and requires corrective or mitigative actions.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, CU4 Example EAL #1 2. Technical Specifications Table 1.2, Operational Conditions
- 3. HC.OP-IO.ZZ-0004(Q)
Shutdown from Rated Power to Cold Shutdown 4. HC.OP-SO.BC-0002 (Q) Decay Heat Removal Operation 5. HC.OP-IO.ZZ-0005(Q)
Cold Shutdown to Refueling Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: CU4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-227 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
C -Cold Shutdown / Refuel System Malfunction 4 -RCS Temperature UNPLANNED loss of decay heat removal capability with irradiated fuel in the RPV 4 -Cold Shutdown, 5 -Refueling EAL# & Classification Level: CU4.2 -UNUSUAL EVENT EAL: An UNPLANNED Loss of Decay Heat Removal functions AND Loss of BOTH of the following: " All RCS Temperature indication
- All RPV level indication AND> 15 minutes have elapsed (Note 3)Note 3: The Emergency Coordinator 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.Basis: This EAL 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 OPCON a large inventory of water is available to keep the core covered.During refueling, the level in the RPV will normally be maintained above the RPV flange.Refueling evolutions that decrease water level below the RPV flange are carefully planned and procedurally controlled.
Loss of forced decay heat removal at reduced inventory may result in more rapid increases in RPV temperatures depending on the time since shutdown.Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: CU4.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-227 Normal means of RCS temperature indication and RPV level indication may not be available in the refueling mode. Redundant means of RPV 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 OPCON or Refueling OPCON, this EAL would result in declaration of a UE 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 EAL CA3.1 based on an inventory loss or EAL CA4.1 based on exceeding its temperature criteria.Explanation/Discussion/Definitions:
RPV water level is normally monitored using the instrument ranges in Attachment 2, page 5.In preparation for RPV floodup and refueling operations, the shutdown range instrument transmitter LT-N027 is valved out and replaced with LT-1 1683. The shutdown range indication is thus expanded to 0" -550". During refueling operations, visual observation by personnel on the refuel floor in communication with the Control Room may also provide indication of reactor cavity water level and RPV water level.RCS coolant temperature may be indicated by the following instrumentation: , Recirc pump suction loop A and B temperature on TR-R650-B31 (10C650C)" Recirc loop temperature from the following computer points: o Recirc loop A inlet temp 1 A221 o Recirc loop A inlet temp 2 A222 o Recirc loop B inlet temp 1 A223 o Recirc loop B Inlet temp 2 A224 o Recirc loop A avg inlet temp B2042 o Recirc loop B avg inlet temp B2043* RHR A & B Hx inlet temperatures from computer points A2380 & A2382* RWCU bottom head drain temperature from computer point A2942 Definitions:
UNPLANNED:
A parameter change or an event that is not the result of an intended evolution and requires corrective or mitigative actions.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: CU4.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-227 EAL Bases Reference(s):
1.2.3.4.5.6.NEI 99-01, Rev. 05, CU4 Example EAL #2 Technical Specifications Figure B3/4-3-1, Reactor Vessel Water Level HC.OP-IO.ZZ-0005(Q)
Cold Shutdown to Refueling HC.IC-GP.BB-0003(Q)
Nuclear Boiler -Nondivisional Channel LT-1 1683 / B21 -N027 Rx Cavity Flood Up Level / Rx Shutdown Range Level Setup HC.OP-IO.ZZ-0004(Q)
Shutdown from Rated Power to Cold Shutdown HC.OP-SO.BC-0002 (Q) Decay Heat Removal Operation Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: CU4.2 HCGS ECG -EAL Technical Bases EP-HC-1 11-227 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: CU4.2 HCGS ECG -EAL Technical Bases EP-HC-1 11 -227 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: EAL: C -Cold Shutdown / Refuel System Malfunction 4 -RCS Temperature Inability to maintain plant in cold shutdown 4 -Cold Shutdown, 5 -Refueling CA4.1 -ALERT An UNPLANNED event results in RCS temperature
> 200OF for > Table C-3 duration OR An UNPLANNED event results in RPV pressure increase > 10 psig due to a loss of RCS cooling Table C-3 RCS Heatup Duration Thresholds RCS Integrity CONTAINMENT CLOSURE Duration threshold Intact NOT Applicable 60 minutes **NOT Intact Established 20 minutes **NOT Intact NOT Established 0 minutes** IF a Decay Heat Removal System is placed in operation within the duration threshold and RCS Temperature is lowering, THEN this EAL is NOT Applicable Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: CA4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-227 Basis: 1 st Condition The RCS Heatup Duration Threshold table addresses complete loss of functions required for core cooling for greater than 60 minutes during Refueling and Cold Shutdown OPCONs 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 a substantial degradation in plant safety.The RCS Heatup Duration Threshold table also addresses the complete loss of functions required for core cooling for greater than 20 minutes during Refueling and Cold Shutdown OPCONs when CONTAINMENT CLOSURE is established but RCS integrity is not established.
The allowed 20 minute time frame was included to allow operator action to restore the heat removal function, if possible.Finally, complete loss of functions required for core cooling during Refueling and Cold Shutdown OPCONs 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.
The note (**) in Table C-3 indicates that this EAL is not applicable if actions are successful in restoring a decay heat removal system to operation and RCS temperature is being reduced within the specified time frame.2nd Condition The 10 psig pressure increase addresses situations where, due to high decay heat loads, the time provided to restore temperature control, should be less than 60 minutes. The RPV pressure setpoint chosen should be 10 psig or the lowest pressure that the site can read on installed Control Board instrumentation that is equal to or greater than 10 psig.Escalation to SITE AREA EMERGENCY would be via EAL CS3.1 or EAL CS3.2 should boiling result in significant RPV level loss leading to core uncovery.Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: CA4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-227 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 Emergency Coordinator must remain alert to events or conditions that lead to the conclusion that exceeding the EAL is IMMINENT.
If, in the judgment of the Emergency Coordinator, an IMMINENT situation is at hand, the classification should be made as if the threshold has been exceeded.Explanation/Discussion/Definitions:
200°F is the Technical Specification cold shutdown temperature limit.A 10 psig RCS pressure increase is readable in the Control Room on PI-5824A (0 -50 psig)and PI-5824B (0 -50 psig).RCS coolant temperature may be indicated by the following instrumentation: " Recirc pump suction loop A and B temperature on TR-R650-B31 (10C650C)* Recirc loop temperature from the following computer points: o Recirc loop A inlet temp 1 A221 o Recirc loop A inlet temp 2 A222 o Recirc loop B inlet temp 1 A223 o Recirc loop B Inlet temp 2 A224 o Recirc loop A avg inlet temp B2042 o Recirc loop B avg inlet temp B2043" RHR A & B Hx inlet temperatures from computer points A2380 & A2382* RWCU bottom head drain temperature from computer point A2942 CONTAINMENT CLOSURE can be established by meeting the requirements of any of the following: " OP-HC-108-115-1001, Operability Assessment and Equipment Control Program, Attachment 5" Technical Specifications 3.6.5.1, Secondary Containment Integrity" Technical Specifications 3.6.1.1, Primary Containment Integrity Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: CA4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-227 Definitions:
UNPLANNED:
A parameter change or an event that is not the result of an intended evolution and requires corrective or mitigative actions.CONTAINMENT CLOSURE: Is the procedurally defined actions taken to secure the Containment (Primary or Secondary) and its associated structures, systems, and components as a functional barrier to fission product release under existing plant conditions.
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 within approximately 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> (unless a different time is specified).
EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, CA4 Example EAL #1 & #2 2. OU-AA-103 Shutdown Safety Management Program 3. HCGS Technical Specifications Table 1.2, Operational Conditions
- 4. HC.OP-AB.RPV-0009(Q)
Shutdown Cooling 5. HC.OP-IO.ZZ-0004(Q)
Shutdown from Rated Power to Cold Shutdown 6. HC.OP-SO.BC-0002 (Q), Decay Heat Removal Operation 7. Technical Specifications 3.6.5.1 Secondary Containment Integrity 8. Technical Specifications 3.6.1.1 Primary Containment Integrity Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: CA4.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-228 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
EAL# & Classification Level: EAL: C -Cold Shutdown / Refuel System Malfunction 5 -Communications Loss of all onsite or offsite communications capabilities 4 -Cold Shutdown, 5 -Refueling, D -Defueled CU5.1 -UNUSUAL EVENT Loss of all Table C-4 Onsite communication methods affecting the ability to perform routine operations OR Loss of all Table C-4 Offsite communication methods affecting the ability to perform offsite notifications Table C-4 Communications Systems System Onsite Offsite Direct Inward Dial System (DID) X X Station Page System (Gaitronics)
X Station Radio System X Nuclear Emergency Telephone X System (NETS)Centrex Phone System (ESSX) X NRC (ENS) X Hope Creek Page 1 of 4 Rev. 0 (draft E)EAL#: CU5.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-228 Basis: The purpose of this EAL 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 off-site 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 off-site 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 off-site locations, etc.) are being utilized to make communications possible.Explanation/Discussion/Definitions:
Onsite and Offsite global communications include one or more of the systems listed in Table C-4.Direct Inward Dial System (DID)Direct Inward Dial (DID) system is named for the dominant feature of the commercial telephone service provided by the local telephone company for the site. DID allows station telephones to be extensions or tied lines of the same systems. These exchanges can take advantage of backup power supplies provided to the stations, and may use either PSEG microwave, commercial telephone system microwave, or buried cable transmission systems to maintain external communications.
This commercial telephone service is available as an additional backup for the NETS and Centrex/ESSX 1 system.Station Page System (Gaitronics)
Gaitronics is a completely transistorized voice communication system with five voice channels: one page and five party. The system is designed for use in extreme environmental conditions such as dust, moisture, heat and noise. The system consists of handsets, speakers and their associated amplifiers.
The power for this system is 120 volts AC from an inverted DC source to provide reliable communications during an emergency.
Station Radio System The Operations and Fire Protection Department UHF radio system is a multi-frequency system used routinely by both station Operations Departments and the Fire Protection Department.
When an emergency event is declared, these radio frequencies serve both station Operations Support Centers (OSC).Hope Creek Page 2 of 4 Rev. 0 (draft E)EAL#: CU5.1 HCGS ECG -EAL Technical Bases EP-HC-111-228 Nuclear Emergency Telephone System (NETS)The Nuclear Emergency Telecommunications System (NETS) is a privately controlled, self-contained telephone exchange that operates as a closed system, not accessible from other phone exchanges.
This feature allows the system to be dedicated to emergency response use. The system may use PSEG microwave, commercial telephone system microwave, fiber optics, or buried cable transmission as needed. The exchange switching equipment is maintained at the Environmental
& Energy Resource Center (EERC). As an independent system with an uninterruptible power supply, it may operate with or without local phone service or external power.Centrex Phone System (ESSX)The Centrex/Electronic Switch System Exchange 1 (CentrexiESSX
- 1) is also a privately controlled exchange, which PSEG operates with its own microwave signal system. This system is also independent of local phone service, since each circuit is independently wired.The microwave signal is generated from corporate facilities in Newark, NJ, separated from any local effects of weather or telephone use. The exchange is accessible from other exchanges, but circuits are located only in PSEG facilities.
It is considered the primary backup for the NETS system.NRC (ENS)The Emergency Notification System (ENS) is a dedicated communications system with the NRC, the Federal Telecommunications System (FTS) and consists of direct lines to the NRC.FTS lines are used to provide general accident information.
These telephones are installed in the Control Room, TSC, and the EOF.This EAL is the cold condition equivalent of the hot condition EAL SU6.1.EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, CU6 Example EAL #1, #2 2. PSEG Nuclear Emergency Plan, Section 7 Communications
- 3. UFSAR 9.5.2 Communications Systems Hope Creek Page 3 of 4 Rev. 0 (draft E)EAL#: CU5.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-228 This page intentionally blank Hope Creek Page 4 of 4 Rev. 0 (draft E)EAL#: CU5.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-229 EAL Category: EAL Subcategory:
Initiating Condition:
OPCON Applicability:
C -Cold Shutdown I Refuel System Malfunction 6 -Inadvertent Criticality Inadvertent Criticality 4 -Cold Shutdown, 5 -Refueling EAL# & Classification Level: CU6.1 -UNUSUAL EVENT EAL: UNPLANNED sustained positive period observed on nuclear instrumentation Basis: This EAL addresses criticality events that occur in the Cold Shutdown OPCON or Refueling OPCON such as fuel mis-loading events. This EAL indicates a potential degradation of the level of safety of the plant, warranting a UE classification.
Escalation would be by Emergency Coordinator Judgment.Explanation/Discussion/Definitions:
The term "sustained" is used in order to allow exclusion of expected short term positive periods from planned control rod movements.
These short term positive periods are the result of the increase in neutron population due to subcritical multiplication.
Positive reactor period may be identified by: " SRM period indicators and recorders R602A and B (green pens) on panel 10C650C* Overhead Annunciator C3-D1, SRM PERIOD* Computer points B3001, B3002, B3003 and B3004 This EAL is the cold condition equivalent of the hot condition EAL SU3.1.Definitions:
UNPLANNED:
A parameter change or an event that is not the result of an intended evolution and requires corrective or mitigative actions.Hope Creek Page 1 of 2 Rev. 0 (draft E)EAL#: CU6.1 HCGS ECG -EAL Technical Bases EP-HC-1 11-229 EAL Bases Reference(s):
- 1. NEI 99-01, Rev. 05, CU8 Example EAL #1 2. Technical Specifications 3.3.7.6, Source Range Monitors 3. HC.OP-ST.SE-0005(Q)
SRM Channel Count Rate Surveillance
- 4. HC.OP-AR.ZZ-0009(Q)
Overhead Annunciator Window Box C3 5. Technical Specifications 3.9.2, Instrumentation Hope Creek Page 2 of 2 Rev. 0 (draft E)EAL#: CU6.1 EAL Attachments (Support Materials)
HCGS ECG -EAL Technical Bases EP-HC-1 11-230 Attachment I -Use of Fission Product Barrier Table OPCON Applicability:
1 -Power Operations, 2 -Startup, 3 -Hot Shutdown A point system is used to determine the Emergency Classification Level based on the Fission Product Barrier Table. Each Fission Product Barrier Loss and Potential Loss threshold is assigned a point value as noted below.Perform the following:
- 1. Review all columns of the Fission Product Barrier Table and identify which need further review.2. For each of the three barriers, determine the EAL with the highest point value. No more than one EAL should be selected for each barrier.3.4.Add the point values for the three barriers.Classify based on the point value sum as follows: If the sum Classify as: EAL Att#2,3 UNUSUAL ANY loss or ANY potential EVENT loss of Containment I ANY loss or ANY. potential 4, 5 ALERT loss of either Fuel Clad or 2 RCS Loss or potential loss of ANY two barriers 3 6-11 SITE AREA OR EMERGENCY Potential loss of 2 barriers with the loss of the 3rd barrier Loss of ANY two barriers GENERAL AND 4 EMERGENCY Loss or potential loss of third barrier Implement the appropriate ECG Attachment.
Continue to review the Fission Product Barrier Table for changes that could result in emergency escalation or de-escalation.
5.6.Hope Creek Page 1 of 1 Rev. 0 (draft E)Attachment 1- Use of FPB Table
HCGS ECG -EAL Technical Bases Attachment 2: EAL Bases Figures / Drawings EP-HC-1 11-231 Figures/drawings referenced in the bases discussions of the EALs are listed in this Attachment.
Title Page No.AC Power Distribution 2 RPV Level Instrument Ranges 5 Short-Term Containment Pressure Response Following 6 Recirculation Line Break (4031 MWt)Long-Term Containment Pressure Response Following 7 Recirculation Line Break Hope Creek Page 1 of 8 Rev. 0 (draft E)Attachment 2 -Figures / Drawings HCGS ECG -EAL Technical Bases EP-HC-1 11-231 AC Power Distribution Hope Creek normally has three physically separate, independent 500 KV transmission lines connecting the Hope Creek 500 KV Switchyard with the Offsite Power Distribution Network (PJM). The three sources are:* 500 KV Hope Creek -Salem Crosstie line.0 The Red Lion Line (referred to as the 5015 line) is a 30.1 mile tie to the Red Lion Switching Station located at Delaware City next to the river and feeds the 500 KV Switchyard Bus Section 3.0 The New Freedom Line (referred to as the 5023 line) is a 42.9 mile tie to the New Freedom Switching Station located northeast of Hope Creek in Camden County and feeds the 500 KV Switchyard Bus Section 5.Power is distributed from the 500 KV switchyard to a 13.8 KV ring bus. Station electrical loads are supplied from the 13.8 KV ring bus through two physically independent auxiliary power systems via Station Service Transformers which supply vital and non-vital station loads.Station Service Transformers 1AX501 and 1BX501 normally supply the 4.16 KV vital buses.The four 4.16 KV vital buses can be supplied by either 1AX501 or 1BX501. Two of the four vital buses are normally provided power from 1AX501 with alternate power from 1BX501; the other two are normally supplied power from 1 BX501 with alternate power from 1AX501. Loss of the normal power supply to a 4.16 KV vital bus initiates a fast transfer (alternate feeder breaker closes) to the alternate source, provided power is available.
Additionally, each 4.16 KV vital bus has an Emergency Diesel Generator (EDG) which will automatically start and provide power to the bus in the event of a sustained loss of power to its associated vital bus. Additional automatic EDG starts are initiated on degraded power conditions on both 1AX501 and 1BX501, or under LOCA conditions.
EDGs will not automatically provide power to the bus unless the bus has a sustained loss of power.Hope Creek Page 2 of 8 Rev. 0 (draft E)Attachment 2 -Figures / Drawings HCGS ECG -EAL Technical Bases EP-HC-1 11-231 AC Power Distribution (cont'd)0 0 R 20~ 0 0 0b 0 MOý;lN 2=0 0 x N 0 0 0 ~ CO o~ ~o N 0 0 0 ~ 2 _ 0-J 0 0 x U3 Cl)'3)n E~u C-) ~Cd)N 03 Cl)0(I?N'>0 0.C, C 0 N 0 a.0 x M Hope Creek Page 3 of 8 Rev. 0 (draft E)Attachment 2 -Figures / Drawings HCGS ECG -EAL Technical Bases EP-HC-1 11 -231 AC Power Distribution (cont'd)C Hope Creek Page 4 of 8 Rev. 0 (draft E)Attachment 2 -Figures / Drawings HCGS ECG -EAL Technical Bases EP-HC-1 11-231 RPV Level Instrument Ranges ihda To1P hecd RPV Flange (+217.5")M~n Stec.r Nozzed~ Leve hdl~urrý--nt Zer Level 2 (-38")Cooe SOj Nmze TOp of Actve FPje MSCRWL (-185")8otoom of Fie*Racllc SJut yO Instru -rte nt -,+a LI Hope Creek Page 5 of 8 Attachment 2 Rev. 0 (draft E)-Figures 1 Drawings HCGS ECG -EAL Technical Bases Short-Term Containment Pressure Response Following Recirculation Line Break (4031 MWt)EP-HC-1 11-231 z I-I LI I.'I [~I U I w ii V I Sd I r .411 ["t 15 :;_111 j Hope Creek Page 6 of 8 Rev. 0 (draft E)Attachment 2 -Figures / Drawings HCGS ECG -EAL Technical Bases EP-HC-1 11-231 Long-Term Containment Pressure Response Following Recirculation Line Break (3359 MWt)Hope Creek Page 7 of 8 Rev. 0 (draft E)Attachment 2 -Figures I Drawings HCGS ECG -EAL Technical Bases EP-HC- 111 -231 This page intentionally blank.Hope Creek Page 8 of 8 Rev. 0 (draft E)Attachment 2 -Figures / Drawings HCGS ECG -EAL Technical Bases EP-HC-1 11-232 Attachment 3 -Definitions Selected words in the ECG Initialting Conditions (ICs) and Emergency Action Levels (EALs)have been set in all capital letters and bolded.These words are defined terms having specific meanings as they relate to this document and the definitions of these terms are provided below and in the basis for the EAL that the word is used in.AIRCRAFT:
Includes both small and large AIRCRAFT.
Examples of AIRCRAFT include general aviation Cessna, Piper and Lear type private planes, large passenger or freight planes as well as police, medical and media helicopters.
A large AIRCRAFT is referred to as an AIRLINER.AIRLINER/LARGE AIRCRAFT:
Any size or type of AIRCRAFT with the potential for causing significant damage to the plant (refer to the Security Contingency Plan for a more detailed definition).
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:
Is the barrier(s) between areas containing radioactive substances and the environment and includes the multi-purpose canister (MPC) and, for the purposes of this EAL, the associated cask shielding.
CONTAINMENT CLOSURE: Is the procedurally defined action taken to secure the Containment (Primary or Secondary) and its associated structures, systems, and components as a functional barrier to fission product release under existing plant conditions.
CREDIBLE / ACTUAL THREAT: Is a threat which poses a likely and serious danger to the safe operation of the facility or to site personnel and public safety.Hope Creek Page 1 of 6 Rev. 0 (draft E)Attachment 3 -Definitions HCGS ECG -EAL Technical Bases EP-HC-111-232 DEGRADED PERFORMANCE:
Assessment of degraded safe shutdown system performance includes examination of systems in standby status as well as those in operation.
When a safe shutdown system is in operation, its performance can be directly observed and compared to its design capability (e.g., rated flow is required but cannot be achieved).
When an operating safe shutdown system cannot fulfill its design function, its performance is degraded.
When a safe shutdown system is in standby, its performance capability may not be readily determined.
One or more of the following can provide indirect indication of its performance capability:
- Electrical faults on power supplies* Normally closed breakers in tripped position* System annunciators activated" System warning lights lit* Insufficient system pressure from keep-fill pumps* Elevated area temperatures or radiation levels* Increased sump pump operation in areas in which the system is located 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.
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 Salem or Hope Creek or its personnel that includes the use of violent force to destroy equipment, take HOSTAGES, and/or intimidate PSEG 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 Salem or Hope Creek. Non-terrorism-based EALs should be used to address such activities (i.e., this may include violent acts between individuals in the OCA).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.
Hope Creek Page 2 of 6 Rev. 0 (draft E)Attachment 3 -Definitions HCGS ECG -EAL Technical Bases EP-HC-1 11-232 IDENTIFIED LEAKAGE: As defined in T/S, shall be leakage into collection systems, such as pump seals or valve packing leaks, that is captured and conducted to a sump or collecting tank, or, shall be leakage into the containment atmosphere from sources that are both specifically located and known either not to interface with the operation of the leakage detection system or not to be PRESSURE BOUNDRY LEAKAGE.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 within approximately 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> (unless a different time is specified).
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.MALICIOUS ACT: Purposeful malevolent actions directed at compromising reactor safety and thus could directly or indirectly endanger the public health and safety.MINIMUM EXCLUSION AREA (MEA): The closest location just beyond the OWNER CONTROLLED AREA where a member of the general public could gain access. For Hope Creek the MEA is 0.56 miles.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 abnormal or emergency operating procedures, or deviation from normal security or radiological controls posture, is a departure from NORMAL PLANT OPERATIONS.
OWNER CONTROLLED AREA (OCA): Property owned, maintained and controlled by PSEG Nuclear as part of the Salem & Hope Creek Generating Station complex. For the purpose of emergency classification, area from the PSEG Nuclear access road checkpoint and inward towards the stations is considered the OCA.PRESSURE BOUNDARY LEAKAGE: As defined in T/S, shall be leakage through a non-isolable fault in a Reactor Coolant System component body, pipe wall or vessel wall.PROJECTILE:
An object that impacts Salem and/or Hope Creek that could cause concern for continued operability, reliability, or personnel safety.PROTECTED AREA (PA): A security controlled area within the OWNER-CONTROLLED AREA (OCA) that is enclosed by the security perimeter fence and monitored by intrusion detection systems. Access to the PA requires proper security clearance and is controlled at the Security Center.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.
Hope Creek Page 3 of 6 Rev. 0 (draft E)Attachment 3 -Definitions HCGS ECG -EAL Technical Bases EP-HC-1 11-232 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 based on EC judgment, but includes as a minimum any one of the following:
(1) Reactor Scram, (2) Electrical Load Rejection
> 22%, (3) Thermal Reactor Power Reduction
> 25%, (4) ECCS Injection, or (5) Thermal Power Oscillations greater than 10%.TAMPERING:
Means deliberately damaging, disabling, or altering equipment necessary for safe shutdown or security equipment necessary for the protection of the facility.
Confirmed tampering implies that a criminal activity may have occurred which requires a threshold of proof for a reason to believe that no other possibility exists for the incident other than tampering.
UNIDENTIFIED LEAKAGE: As defined in T/S, shall be all leakage which is not IDENTIFIED LEAKAGE.UNISOLABLE:
A breach or leak that cannot be promptly isolated from the Control Room.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 indicator's operability, the condition's existence, or the report's accuracy is removed. Implicit in this definition is the need for timely assessment.
VALIDATED:
AIRCRAFT threat call from the NRC that is confirmed to be authentic.
Calls from the NRC are VALIDATED by use of the NRC provided authentication code or by making a return call to the NRC Headquarter Operations Center and confirming threat information with the NRC Operation Officer. AIRCRAFT threat calls from other agencies, NORAD, FAA, or FBI should be VALIDATED by calling the NRC Operations Officer.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, and paint blistering.
Surface blemishes (e.g., paint chipping, scratches) should not be included.Hope Creek Page 4 of 6 Rev. 0 (draft E)Attachment 3 -Definitions HCGS ECG -EAL Technical Bases EP-HC-1 11-232 VITAL AREAS: Typically any site specific areas, normally within the PROTECTED AREA, that contains equipment, systems, components, or material, the failure, destruction, or release of which could directly or indirectly endanger the public health and safety by exposure to radiation.
Hope Creek Page 5 of 6 Rev. 0 (draft E)Attachment 3 -Definitions HCGS ECG -EAL Technical Bases EP-HC-111-232 This page intentionally blank Hope Creek Page 6 of 6 Rev. 0 (draft E)Attachment 3 -Definitions HCGS ECG -EAL Technical Bases EP-HC-1 11-233 Attachment 4 -Glossary of Abbreviations
& Acronyms Acronyms and Abbreviations used in the ECG and ECG basis document are listed in this attachment.
AAAG AC ADMSS ADS AH ALARA APRM ARI ARM ASAP ASM ATWS BKGD BKR BLDG BNE BWR-Accident Assessment Advisory Group (Delaware)
-Alternating Current-Administrative Support Supervisor
-TSC-Automatic Depressurization System-Amp-Hour-As Low As Reasonably Achievable
-Average Power Range Monitor-Alternate Rod Insertion-Area Radiation Monitor-As Soon As Possible-Administrative Support Manager-Anticipated Transient Without Scram-Background
-Breaker (electrical circuit)-Building-Bureau of Nuclear Engineering (NJDEPE)-Boiling Water Reactor-Containment Atmosphere Control System-Central Alarm Station-Corrected Counts per Minute-Committed Effective Dose Equivalent
-Committed Dose Equivalent
-Code of Federal Regulations
-Containment Isolation System-Containment (Barrier)-Certificate of Compliance
-Carbon Dioxide-Control Point-Counts Per Minute-Counts Per Second-Control Room-Control Room Supervisor
-Control Room Emergency Filter System-Control Room Integrated Display System-Control Rod Drive-Core Spray System CACS CAS CCPM CEDE CDE CFR CIS CNTMT/CT CoC CO 2 CP CPM CPS CR CRS CREF CRIDS CRD CSS Hope Creek Page 1 of 6 Rev. 0 (draft E)Attachment 4 -Abbreviations
& Acronyms HCGS ECG -EAL Technical Bases EP-HC-1 11-233 DC DAPA DDE DEI DEMA DEP DHS DID DLD DOE DOT DPCC/DCR DPM DRCF EACS EAL EAS EC ECCS ECG ECL EDG EDO EERC EMRAD ENC ENS EOC EOF EOP EPA EPA EPC EPG EPIP/EPEP EPZ EQPT ERDS ERM ERO ESF ESSX Hope Creek-Direct Current-Drywell Atmosphere Post Accident (Radiation monitor)-Deep Dose Equivalent
-Dose Equivalent Iodine-Delaware Emergency Management Agency-Department of Environmental Protection (NJ)-Department of Homeland Security-Direct Inward Dial (phone system)-Drywell Leak Detection-Department of Energy-Department of Transportation
-Discharge Prevention, Containment, & Countermeasures/Discharge Cleanup & Removal Plan-Disintegrations per Minute-Dose Rate Conversion Factor-ESF Equipment Area Cooling System-Emergency Action Level-Emergency Alert System (Broadcast)
-Emergency Coordinator
-Emergency Core Cooling Systems-Event Classification Guide-Emergency Classification Level-Emergency Diesel Generator-Emergency Duty Officer-Energy & Environmental Resource Center (Old NTC)-Emergency Radio (NJ)-Emergency News Center-Emergency Notification System (NRC)-Emergency Operations Center (NJ & DE)-Emergency Operations Facility-Emergency Operating Procedure-Emergency Preparedness Advisor-Environmental Protection Agency-Emergency Preparedness Coordinator
-Emergency Procedure Guideline-Emergency Plan Implementing Procedure-Emergency Planning Zone-Equipment-Emergency Response Data System-Emergency Response Manager-Emergency Response Organization
-Engineered Safety Feature-Electronic Switch System Exchange (Centrex)Page 2 of 6 Rev. 0 (draft E)Attachment 4 -Abbreviations
& Acronyms HCGS ECG -EAL Technical Bases EP-HC-1 11-233 FAA -Federal Aviation Administration FBI -Federal Bureau of Investigation FC -Fuel Clad (Barrier)FEMA -Federal Emergency Management Agency FFD -Fitness For Duty FRVS -Filtration, Recirculation and Ventilation System FSAR -Final Safety Analysis Report FTS -Federal Telecommunications System (NRC)GE -General Emergency HCGS -Hope Creek Generating Station HCTL -Heat Capacity Temperature Limit HEPA -High Efficiency Particulate Absorbers HOO -Headquarters Operations Officer HPCI -High Pressure Coolant Injection HTV -Hardened Torus Vent HVAC -Heating, Ventilation
& Air Conditioning HWCI -Hydrogen Water Chemical Injection HX -Heat Exchanger lAW -In Accordance With IC -Initiating Condition ICMF -Initial Contact Message Form IDLH -Immediately Dangerous to Life and Health IPEEE -Individual Plant Examination of External Events IRM -Intermediate Range Monitor ISFS1 -Independent Spent Fuel Storage Installation I/S -In Service Keff -Effective Neutron Multiplication Factor KI -Potassium Iodide KV -Kilovolt LAC -Lower Alloways Creek LCO -Limiting Condition for Operation LDC -Learning Development Center (aka -NAB or TB2)LDE -Lens Dose Equivalent LEL -Lower Explosive Limit LER -Licensing Event Report LFL -Lower Flammability Limit LLD -Lowest Level Detectable LOCA -Loss of Coolant Accident LOP -Loss of Offsite Power Hope Creek Page 3 of 6 Rev. 0 (draft E)Attachment 4 -Abbreviations
& Acronyms HCGS ECG -EAL Technical Bases EP-HC-1 11-233 LPCI LPZ LWR Low Pressure Coolant Injection Low Population Zone Light Water Reactor MCR MDA MEA MEES MET MOU MRO MSCRWL MSCP MSIV MSIVSS MSL MSL mR MW NAB NAWAS NCO NDAB NEI NEO NESP NETS NFE NFPB NJSP NOAA NORAD NPP NPV NRC NSSSS NUMARC NWS OBE OCA ODCM OEM OHA Hope Creek-Main Control Room-Minimum Detectable Amount-Minimum Exclusion Area-Major Equipment
& Electrical Status (Form)-Meteorological
-Memorandum of Understanding
-Medical Review Officer-Minimum Steam Cooling RPV Water Level-Minimum Steam Cooling Pressure-Main Steam Isolation Valve-Main Steam Isolation Valve Sealing System-Main Steam Line-Mean Sea Level-milliRoentgen
-Megawatt-Nuclear Administrative Building-National Attack Warning Alert System-Nuclear Control Operator-Nuclear Department Administration Building (TB2)-Nuclear Energy Institute-Nuclear Equipment Operator-National Environmental Studies Project-Nuclear Emergency Telecommunications System-Nuclear Fuels Engineer-Normal Full Power Background
-New Jersey State Police-National Oceanographic and Atmospheric Administration
-North American Aerospace Defense Command-Nuclear Power Plant-North Plant Vent-Nuclear Regulatory Commission
-Nuclear Steam Supply Shutoff System-Nuclear Management and Resources Council-National Weather Service-Operating Basis Earthquake
-Owner Controlled Area-Offsite Dose Calculation Manual-Office of Emergency Management (NJ)-Overhead Annunciator Page 4 of 6 Rev. 0 (draft E)Attachment 4 -Abbreviations
& Acronyms HCGS ECG -EAL Technical Bases EP-HC-111-233 OPCON -Operational Condition ORO -Offsite Response Organization OSB -Operational Status Board (Form)OSC -Operations Support Center PA -Protected Area PA -Public Address PAG -Protective Action Guideline PAR -Protective Action Recommendation PC -Primary Containment (Barrier)PCIG -Primary Containment Instrument Gas System PCIS -Primary Containment Isolation System PPC -Plant Process Computer PRM -Process Radiation Monitor PSEG -Public Service Enterprise Group PSIG -Pounds Square Inch Gauge R -Roentgen RAD -Radiation RAL -Reportable Action Level RC -Reactor Coolant RCA -Radiologically Controlled Area RCAM -Repair and Corrective Action Mission RCIC -Reactor Core Isolation Cooling RCS -Reactor Coolant System (Barrier)REM -Roentgen Equivalent Man RHR -Residual Heat Removal (Containment Heat Removal)RM -Recovery Manager RM -Radiation Monitor RMO -Recovery Management Organization RMS -Radiation Monitoring System RPS -Radiation Protection Supervisor RPS -Reactor Protection System RPV -Reactor Pressure Vessel RRCS -Redundant Reactivity Control System RSM -Radiological Support Manager RWCU -Reactor Water Cleanup (System)SACS -Safety Auxiliaries Cooling System SAE -Site Area Emergency SAM -Severe Accident Management SAS -Secondary Alarm Station (Security)
SBO -Station Blackout SCBA -Self Contained Breathing Apparatus SCP -Security Contingency Procedure Hope Creek Page 5 of 6 Rev. 0 (draft E)Attachment 4 -Abbreviations
& Acronyms HCGS ECG -EAL Technical Bases EP-HC-1 11-233 SDE -Shallow Dose Equivalent SDM -Shutdown Margin SLC -Standby Liquid Control SJAE -Steam Jet Air Ejector SM -Shift Manager SNM -Special Nuclear Material SNSS -Senior Nuclear Shift Supervisor SOS -Systems Operations Supervisor (Security)
SPDS -Safety Parameter Display System SPV -South Plant Vent SRM -Source Range Monitor SRO -Senior Reactor Operator SRPT -Shift Radiation Protection Technician SRV -Safety Relief Valve SSC -Structure, System or Component SSCL -Station Status Checklist SSE -Safe Shutdown Earthquake SSWS -Station Service Water System SSNM -Strategic Special Nuclear Material STA -Shift Technical Advisor SW -Service Water TAF -Top of Active Fuel TDR -Technical Document Room TEDE -Total Effective Dose Equivalent TIP -Traversing Incore Probe TLV -Threshold Limit Value T/S -Technical Specifications TSC -Technical Support Center TSS -Technical Support Supervisor TSTL -Technical Support Team Leader TSTM -Technical Support Team Member UE -Unusual Event UFSAR -Updated Final Safety Analysis Report UHS -Ultimate Heat Sink USCG -United States Coast Guard VDC -Volts Direct Current WB -Whole Body Hope Creek Page 6 of 6 Rev. 0 (draft E)Attachment 4 -Abbreviations
& Acronyms HCGS ECG -EAL Technical Bases EP-HC-1 11-234 Attachment 5- HCGS-to-NEI 99-01 EAL Cross-Reference This cross-reference is provided to facilitate association and location of a Hope Creek Generating Station EAL within the NEI 99-01, Rev. 05, IC/EAL identification scheme. Further information regarding the development of the HCGS EALs based on the NEI guidance can be found in the EAL Comparison Matrix.HCGS NEI 99-01 EAL IC Example EAL RU1.1 AU1 1 RU1.2 AU1 1 RU1.3 AU1 3 RU2.1 AU2 1 RU2.2 AU2 2 RA1.1 AA1 1 RA1.2 AA1 1 RA1.3 AA1 3 RA2.1 AA2 2 RA2.2 AA2 1 RA3.1 AA3 1 RS1.1 AS1 I RS1.2 AS1 2 RS1.3 AS1 4 RG1.1 AG1 1 RG1.2 AG1 2 RG1.3 AG1 4 CU1.1 CU3 1 CU2.1 CU7 1 CU3.1 CUl 1 CU3.2 CU2 2 CU3.3 CU2 1 CU4.1 CU4 1 Hope Creek Page 1 of 4 Rev. 0 (draft E)Attachment 5 -EAL Cross-Reference HCGS ECG -EAL Technical Bases EP-HC-1 11-234 HCGS NEI 99-01 EAL IC Example EAL CU4.2 CU4 2 CU5.1 CU6 1,2 CU6.1 CU8 1 CA1.1 CA3 1 CA3.1 CA1 1 CA3.2 CA1 2 CA4.1 CA4 1,2 CS3.1 CS1 1,2 CS3.2 CS1 3 CG3.1 CG1 1 CG3.2 CG1 2 EU1.1 E-HU1 1 HUI.1 HUI 1 HU1.2 HU1 2 HUI.3 HUI 4 HU1.4 HUI 3 HU1.5 HUI 5 HU2.1 HU2 1 HU2.2 HU2 2 HU3.1 HU3 1 HU3.2 HU3 2 HU4.1 HU4 1,2,3 HU6.1 HU5 1 HA1.1 HAl 1 HA1.2 HAl 2 HA1.3 HAl 4 HA1.4 HAl 3 HA1.6 HAl 5 Hope Creek Page 2 of 4 Rev. 0 (draft E)Attachment 5 -EAL Cross-Reference HCGS ECG -EAL Technical Bases EP-HC-1 11-234 HCGS NEI 99-01 EAL IC Example EAL HA2.1 HA2 1 HA3.1 HA3 1 HA4.1 HA4 1,2 HA5.1 HA5 1 HA6.1 HA6 1 HS4.1 HS4 1 HS5.1 HS2 1 HS6.1 HS3 1 HG4.1 HG1 1,2 HG6.1 HG2 1 SU1.1 SUl 1 SU3.1 SU8 1 SU4.1 SU2 1 SU5.1 SU3 1 SU6.1 SU6 1,2 SU7.1 SU4 1 SU7.2 SU4 2 SU8.1 SU5 1,2 SA1.1 SA5 1 SA3.1 SA2 1 SA5.1 SA4 1 SS1.1 SS1 1 SS2.1 SS3 1 SS3.1 SS2 1 SS5.1 SS6 1 SG1.1 SG1 1 SG3.1 SG2 1 Hope Creek Page 3 of 4 Rev. 0 (draft E)Attachment 5 -EAL Cross-Reference HCGS ECG -EAL Technical Bases EP-HC-1 11-234 Fission Product Barrier EALs HCGS NEI 99-01 EAL Barrier Threshold FB3-L FC Loss 1 FB1-L FC Loss 2 FB2-L FC Loss 4 FB4-L FC Loss 6 FB1-P FC P-Loss 2 FB2-P FC P-Loss 6 RB2-L RCS Loss 1 RB1-L RCS Loss 2 RB3-L RCS Loss 3 RB4-L RCS Loss 3 RB5-L RCS Loss 6 RB1-P RCS P-Loss 3 RB2-P RCS P-Loss 3 RB3-P RCS P-Loss 6 CB1-L CMT Loss 1 CB2-L CMT Loss 1 CB3-L CMT Loss 3 CB4-L CMT Loss 3 CB5-L CMT Loss 3 CB6-L CMT Loss 6 CB2-P CMT P-Loss 1 CB3-P CMT P-Loss 1 CB4-P CMT P-Loss 1 CB1-P CMT P-Loss 2 CB5-P CMT P-Loss 4 CB6-P CMT P-Loss 6 Hope Creek Page 4 of 4 Rev. 0 (draft E)Attachment 5 -EAL Cross-Reference HCGS ECG -EAL Techmical Bases EP-HC-1 11-235 Hope Creek Radiological EAL Setpoint Calculation Document NEI 99-01, Rev. 05 EALs Purpose: This is a reference document that contains the methodology and calculations used in developing the thresholds for radiological release based Emergency Action Levels (EALs). The radiological EALs covered under this document are based on EALs AUl, AA1, AS I and AGI in NEI-99-01, Rev. 05, "Methodology for Development of Emergency Action Levels".Reference Materials:
- NEI 99-01, Rev. 05 -Methodology for Development of Emergency Action Levels, EALs AU 1, AA1, AS1 and AG1* NEI 99-01, Rev. 05 -Appendix A: Basis for Radiological Effluent EALs* Hope Creek ODCM Rev. 24* EPA 400-R-92-00 1, Manual or Protective Action Guides and Protective Actions for Nuclear Incidents Terms & Calculation Constants and origin:* ODCM -Offsite Dose Calculation Manual* Hours in one year: 365.25 days X 24 hrs/day = 8766 hours0.101 days <br />2.435 hours <br />0.0145 weeks <br />0.00334 months <br />" EDE -Effective Dose Equivalent
- CDE -Committed Dose Equivalent
- CEDE -Colrmnitted Effective Dose Equivalent
= CDE X Weighting Factor (thyroid per 1OCFR20)* TEDE -Total Effective Dose Equivalent
= EDE + CDE* FRVS -Filtration Recirculation Vent System" NPV -North Plant Vent* SPV -South Plant Vent" HTV -Hardened Torus Vent* PAG -Protective Action Guideline:
Per EPA = 1 OOOmRem TEDE dose or 5000 mRem thyroid dose.Actual or projected values above these guidelines will require offsite protective actions to be implemented.
Hope Creek Page 1 of 17 Rev. 0 (Draft E)
HCGS ECG -EAL Technical Bases EP-HC- 111-235 Hope Creek Radiological EAL Setpoint Calculation Document NEI 99-01, Rev. 05 EALs* ODCM Rad Effluent Limit -500 mRem/year is a total site Noble Gas limit that includes Salem 1, Salem 2 and Hope Creek. Therefore, Hope Creek will have an administratively controlled limit of 1/2 the total site limit or 250 mRexrnyear for EAL calculation purposes." Allocation Factor (AF) = .5 -As defined in the Hope Creek ODCM, (page 85) this is an administrative control imposed to ensure that the combined releases from Salem Units 1 and 2 and Hope Creek will not exceed the regulatory limit from the site. The Site AF is only used in the UE and Alert EALs." X/Q -Site Specific Atmospheric dispersion to the site boundary.Hope Creek Value = 2.14E-06 sec/m3. Origin -Hope Creek ODCM, Rev. 24, Table 2-2, Parameters for Gaseous Alarm Setpoint Determinations." DRCF = Site Specific Dose Rate Conversion Factor. Hope Creek = 7.8E+03 mrem/year per uCi/ in 3.Origin -Hope Creek ODCM, Rev. 24, Table C-i, Effective Dose Factors, Noble Gases -Total Body and Skin -Total Body Effective Dose Factor.Hope Creek EALS -Index: (Radiological Release EAL Calculations)
Page #: Unusual Event EAL AU 1.1 -(Default Release Rate EAL) 4 Unusual Event EAL AU1.2 -(2 time alarm) No Calc needed Unusual Event EAL AU 1.3 -(Sample Analysis Concentration) 5 Unusual Event EAL AU1 .4- (Perimeter Monitoring System -NA)Unusual Event EAL AU1.5 -(Dose Assessment
-NA)Alert EAL AA 1.1 -(Default Release Rate EAL) 7 Alert EAL AA1.2 -(200 time alarm) No Calc needed Alert EAL AA1.3 -(Sample Analysis Concentration) 8 Alert EAL AA1.4 -(Perimeter Monitoring System -NA)Alert EAL AA1.5 -(Dose Assessment
-NA)Site Area Emergency EAL AS 1.1 -(Default Release Rate EAL) 10 Site Area Emergency EAL AS 1.2 -(Dose Assessment) 11 Site Area Emergency EAL AS 1.3 -(Perimeter Monitoring Sys -NA )Site Area Emergency EAL AS 1.4 -(PA boundary dose rate) 12 Site Area Emergency EAL AS 1.4 -(1-131 Field Survey Sample Analysis) 13 General Emergency EAL AG 1.1 -(Default Release Rate EAL) 15 General Emergency EAL AG1.2 -(Dose Assessment) 16 General Emergency EAL AG1.3 -(Perimeter Monitoring Sys -NA)General Emergency EAL AG1.4 -(PA boundary dose rate) 17 General Emergency EAL AG1.4 -(1-131 Field Survey Sample Analysis) 18 Hope Creek Page 2 of 17 Rev. 0 (Draft E)
HCGS ECG -EAL Technical Bases EP-HC-1 11-235 Hope Creek Radiological EAL Setpoint Calculation Document NEI 99-01, Rev. 05 EALs Submitted By: _ Craig Banner Date: 12-15-2009 EP Review By: _Gary Young_Date: 12-17-2009 Technical Review: ___Jenny Shelton______________
Date: 06-04-2010 Salem SFAM Review: NA Date: _NA HC SFAM Review: ___John Molner_____________
Date: 06-04-2010 CFAM Approval:
David Burgin Date: 06-09-2010 Hope Creek Page 3 of 17 Rev. 0 (Draft E)
HCGS ECG -EAL Techmical Bases EP-HC-111-235 Hope Creek Radiological EAL Setpoint Calculation Document NEI 99-01, Rev. 05 EALs Calculation for: Unusual Event EAL AUI.1 -(Default Release Rate EAL)Objective of Calculation:
Provide a Hope Creek Radiological Release Rate value that equates to a Release that is > 2 times the ODCM limit of 500 mRem/year.
Discussion:
The ODCM limit of 500 mRem/year is a total site limit that includes Salem 1, Salem 2 and Hope Creek.Therefore, Hope Creek will have an administratively controlled limit of 1/2 the total site limit or 250 mRern/year for EAL calculation purposes.This EAL does not include Iodine Release Rates, since the Plant Vent does not have an Iodine detector.Release Rate = Total Noble Gas Release Rate from Hope Creek (FRVS, NPV, SPV, HTV) which would result in a TEDE Dose Rate of 250 mRem/year.
The EAL value will be 2 times the release rate.Derivation
/ Calculation:
ODCM Limit Calculation for Noble Gas: Release Rate (uCi/Sec)
= ODCMLimit (m Re in / year) * (SiteAllocationFactor)(ODCMX / Q) * (ODCMDRCF)
ODCM Limit = 500 mRem/Year Hope Creek ODCM X/Q = 2.14E-06 sec/m 3 Hope Creek ODCM DRCF = 7.80E+03 mRerl/yr/uCi/m 3 Site Allocation Factor = 5.00E-01 Release Rate (uCi/Sec)
=(500m Rein / yr) * (5.OOE -01)(2.14E -06sec/rn 3) * (7.80E + 03n7 Re n / yr /pCi / 7n 3)Release Rate = 1.50E+04 uCi/Sec (Also the Tech Spec/ODCM Limit Release Rate Value)EAL Value = 2 times the Release Rate UE EAL Value: (EAL # RU1.1)Total Hope Creek Noble Gas Release Rate > 3.0OE+04 gCi/sec Hope Creek Page 4 of 17 Rev. 0 (Draft E)
HCGS ECG -EAL Technical Bases EP-HC-111-235 Hope Creek Radiological EAL Setpoint Calculation Document NEI 99-01, Rev. 05 EALs Calculation for: Unusual Event EAL AU1.3 -(Sample Analysis Concentration)
Objective of Calculation:
Provide a Radiological Release Noble Gas and Iodine Sample Concentration that equates to a Release that is>2 times the ODCM limit of 500 mRem/year.
Discussion:
The ODCM limit of 500 mRemr/year (Noble Gas/Total Body) and 1500mRem/year (1-13 1/Child Thyroid) is a total site limit that includes Salem 1, Salem 2 and Hope Creek. Therefore, Hope Creek will have an administratively controlled limit (allocation factor) of 1/2 the total site limit or 250 mRem/year (Noble Gas/Total Body) and 750 mRemlyear (I-13 1/Child Thyroid) for EAL calculation purposes.
This allocation factor is used in the calculation that derived the Noble Gas and Iodine release rates.Hope Creek has three release points for which sample concentration thresholds are needed.* FRVS -Filtration Recirculation Vent System* NPV -North Plant Vent* SPV -South Plant Vent Derivation
/ Calculation:
Calculation of the threshold sample concentrations are as follows: ODCM Re leaseR ate
- 2 Folrmula:
Concentration (uCi/cc) =ConversionFactor
- VentFlowRate FR VS Noble Gas Sample Concentration
= 1.50E + 04/Ci / sec* 2 = 7.10E-03 LCi/ec 472x9000cf7n FR VS 1-131 Sample Concentration
= 1.74E+1/Ci/sec*2
8.20E-06 LCO/cc 472x9000cfmn NPVNoble Gas Sample Concentration
1.50E+04/uCi/sec*2
= 1.52E-03 f+/-Ci/cc 472x4.19E
+ 04cfn NPVI-131 Sample Concentration
= 1.74E + 01kCi/sec*2
= 1.80E-06 pLCi/cc 472x4.19E
+ 04cfin SPVNoble Gas Sample Concentration
= 1.50E+04pCi/see*
= 1.44E-04 tCi/cc 472x4.40E
+ 05cfin Hope Creek Page 5 of 17 Rev. 0 (Draft E)
HCGS ECG -EAL Technical Bases EP-HC-111-235 Hope Creek Radiological EAL Setpoint Calculation Document NEI 99-01, Rev. 05 EALs SPVI-131 Sample Concentration
= =.74E+OlpCi/sec*2 1.68E-07 jtCi/cc 472x4.40E
+ 05cfin Where:* ODCM limit Release Rate of 1.50E+04 ýiCi/sec per calculation performed for EAL AU .1.0 ODCM limit (Thyroid/I-131)
Release Rate of 17.4 uCi/Sec as per ODCM, Rev. 24, Section 2.3.2 -* 2 = EAL criteria of 2X Tech Spec/ODCM value* 472 = conversion factor (28,317 cc/ft 3 x 1 min./60 sec.)* 9000 cfin = FRVS Vent Flow (maximum) (ODCM Table 2-2)* 4.19E+04 cfin = NPV Vent Flow (maximum) (ODCM Table 2-2)* 4.40E+05 cfrn = SPV Vent Flow (maximum) (ODCM Table 2-2)UE EAL Values: (EAL# RU1.3)FRVS Noble Gas Sample Concentration FRVS 1-131 Sample Concentration NPV Noble Gas Sample Concentration NPV 1-131 Sample Concentration SPV Noble Gas Sample Concentration SPV 1-131 Sample Concentration
> 7.10E-03 ptCi/cc> 8.20E-06 ptCi/cc> 1.52E-03 pCi/cc> 1.80E-06 pCi/cc> 1.44E-04 pCi/cc> 1.68E-07 pCi/cc Hope Creek Page 6 of 17 Rev. 0 (Draft E)
HCGS ECG -EAL Technical Bases EP-HC-111-235 Hope Creek Radiological EAL Setpoint Calculation Document NEI 99-01, Rev. 05 EALs Calculation for: ALERT EAL AA1.1 -(Default Release Rate EAL)Objective of Calculation:
Provide a Radiological Release Rate value that equates to a Release that is > 200 times the ODCM limit of 500 mRem/year.
Discussion:
The ODCM limit of 500 mRem/year is a total site limit that includes Salem 1, Salem 2 and Hope Creek. Therefore, Hope Creek will have an administratively controlled limit of 1/2 the total site limit or 250 mRem/year for EAL calculation purposes.This EAL does not include Iodine Release Rates, since the Plant Vent does not have an Iodine detector.Release Rate = Total Noble Gas Release Rate from Hope Creek (FRVS, NPV, SPV, HTV)which would result in a TEDE Dose Rate of 250 mRemlyear.
The EAL value will be 200 times the release rate.Derivation
/ Calculation:
ODCM Limit Calculation for Noble Gas: Release Rate (uCi/Sec)
= TS / ODCMLimit(n Re m / year) * (SiteAllocationFactor)(ODCMX /1Q) * (ODCMDRCF)
ODCM Limit = 500 mRem/Year Hope Creek ODCM X/Q = 2.14E-06 sec/mn 3 Hope Creek ODCM DRCF = 7.80E+03 mRem/yr/uCi/m 3 Site Allocation Factor = 5.OOE-01 Release Rate (uCi/Sec)
= (5007 Rem /yr) * (5.OOE -01)(2.14E -06sec/ M 3) * (7.80E + 03m Re m / yr /0Ci / 7 3 7)Release Rate = 1.50E+04 uCi/Sec (ODCM Limit Release Rate Value)EAL Value = 200 times the Release Rate UE EAL Value: (EAL# RA1.)Total Hope Creek Noble Gas Release Rate > 3.OOE+06 pCi/sec Hope Creek Page 7 of 17 Rev. 0 (Draft E)
HCGS ECG -EAL Technical Bases EP-HC- 111-23 5 Hope Creek Radiological EAL Setpoint Calculation Document NEI 99-01, Rev. 05 EALs Calculation for: ALERT EAL AA1.3 -(Sample Analysis Concentration)
Obiective of Calculation:
Provide a Radiological Release Noble Gas and Iodine Sample Concentration that equates to a Release that is 200 times the ODCM limit of 500 mRem/year.
Discussion:
The ODCM limit of 500 mRem/year (Noble Gas/Total Body) and 1500mRem/year (1-13 1/Child Thyroid) is a total site limit that includes Salem 1, Salem 2 and Hope Creek. Therefore, Hope Creek will have an administratively controlled limit (allocation factor) of 1/2 the total site limit or 250 mRemlyear (Noble Gas/Total Body) and 750 mRenl/year (1-131/Child Thyroid) for EAL calculation purposes.
This allocation factor is used in the calculation that derived the Noble Gas and Iodine release rates.Hope Creek has three release points for which sample concentration thresholds are needed." FRVS -Filtration Recirculation Vent System" NPV -North Plant Vent* SPV -South Plant Vent Derivation
/ Calculation:
Calculation of the threshold sample concentrations are as follows: Formula: Concentration (uCi/cc) =ODCM ReleaseRate
- 200 ConversionFactor
- VentFlowRate Refer to Basis Section for EAL 6.1.1 .d for the 1 OCFR20, Appendix B Noble Gas and Thyroid Committed Dose release rate calculations.
Calculation of the threshold sample concentrations are as follows: FR VS Noble Gas Sample Concentration
=FR VS 1-131 Sample Concentration
=1.50E + 04pCi/sec*
200__________________=
7.10E-01 p~Ci/cc 472x9000cfir 1.74E + OlpCi/sec*
200 472x900cfin
= 8.20E-04 pCi/cc 4 72x9000cfin 1 .50E + 04 jCi /sec* 200 1.50E__4p________00
= 1.52E-01 tCi/cc 472x4.19E
+ 04cfin NPV Noble Gas Sample Concentration=
Hope Creek Page 8 of 17 Rev. 0 (Draft E)
HCGS ECG -EAL Technical Bases EP-HC- 111-235 Hope Creek Radiological EAL Setpoint Calculation Document NEI 99-01, Rev. 05 EALs NPVI-]3] Sample Concentration
-1.74E + OlCi / sec* 200 = 1.80E-04 Ci/cc 472x4.19E
+ 04cfin SPVNoble Gas Sample Concentration
=1.50E + 04/1Ci/sec*
200 472x4.40E
+ 05cfn SPVI-131 Where: Sample Concentration
-1.74E + 0lCi / sec* 200 = 1.68E-05 ji/cc 472x4.40E
+ 05cfin* Hope Creek ODCM limit Release Rate of 1.50E+04 jiCi/sec per calculation performed for EAL AU 1.1.* Hope Creek ODCM limit (Thyroid/I-131)
Release Rate of 17.4 uCi/Sec as per ODCM, Rev. 24, Section 2.3.2 -* 200 = EAL criteria of 200X Tech Spec/ODCM value* 472 = conversion factor (28,317 cc/ft 3 x 1 min./60 sec.)o 9000 cfm = FRVS Vent Flow (maximum) (ODCM Table 2-2)0 4.19E+04 cfin = NPV Vent Flow (maximum) (ODCM Table 2-2)* 4.40E+05 cfin = SPV Vent Flow (maximum) (ODCM Table 2-2)UE EAL Values: (EAL# RAI.3)FRVS Noble Gas Sample Concentration FRVS 1-131 Sample Concentration NPV Noble Gas Sample Concentration NPV 1-131 Sample Concentration SPV Noble Gas Sample Concentration SPV 1-131 Sample Concentration
> 7.10E-01> 8.20E-04> 1.52E-01> 1.80E-04> 1.44E-02> 1.68E-05 pCi/cc PCi/cc pCi/cc gCi/cc ptCi/cc gCi/cc Hope Creek Page 9 of 17 Rev. 0 (Draft E)
HCGS ECG -EAL Technical Bases EP-HC-111-235 Hope Creek Radiological EAL Setpoint Calculation Document NEI 99-01, Rev. 05 EALs Calculation for: SITE AREA EMERGENCY
-EAL AS1.1 -(Default Release Rate EAL)Objective of Calculation:
Provide a Radiological Release Rate value that equates to a Release resulting in an offsite dose of > 100 mrem TEDE at or beyond the site boundary.Discussion:
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.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. Iodine Release Rates for this EAL are excluded since the Plant Vent Radiation Monitoring System does not include an Iodine detector.The meteorology and source term used are the same as used for determining AU1 and AA1 monitor reading EALs.Release Rate = Total Noble Gas Release Rate from Hope Creek which would result in a TEDE Dose Rate of > 1 O0mRemihr at the site boundary or beyond.Derivation
/ Calculation:
ODCM Limit Calculation for Noble Gas: Release Rate (uCi/Sec)
= (1 OofPA G)m Re m(accumulatedinlhour)(ODCMX /Q) * (ODCMDRCF) 10% of PAG = 100 mRem/hr dose accumulated in 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> Hope Creek ODCM X/Q = 2.14E-06 sec/in 3 HC ODCM DRCF = 8.9E-01 mRem/hr/uCi/m 3 (7.80E+03 mRem/yr/uCi/
m 3 / 8766 hrs/yr)Site Allocation Factor = not used for SAE and GE EALs Release Rate (uCi/Sec)
= 100m Re m(doseaccumulatedinlhour)
(2.14E -06sec/ M 3) * (8.9E -0 lin Re m / hr / uCi / i3)SAE EAL Value: (EAL# RSJ.1)Total Hope Creek Noble Gas Release Rate > 5.25E+07 uCi/Sec Hope Creek Page 10 of 17 Rev. 0 (Draft E)
HCGS ECG -EAL Technical Bases EP-HC-1 11-235 Hope Creek Radiological EAL Setpoint Calculation Document NEI 99-01, Rev. 05 EALs Calculation for: SITE AREA EMERGENCY
-EAL AS1.2 -(Dose Assessment)
Objective of Calculation:
Using actual meteorology, provide a dose assessment SSCL threshold TEDE 4-Day Dose value that is equivalent to a TEDE dose of> 100 mRem and a Thyroid-CDE Dose of> 500 toRem.Discussion:
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). 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 involve fuel damage.Derivation
/ Calculation:
The dose assessment output on the SSCL is reported at varying distances from the plant as a TEDE 4-Day dose. This TEDE 4-day dose assumes a 4 hr release duration.
To obtain the approximate dose for a projected release condition of 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, the TEDE 4-day dose value would need to be divided by 4.A TEDE 4-Day Dose > 4.0E+02 mRem correspond directly to an EDE dose rate value of 100 mRemlhr and exceeds 10% of the EPA Protective Actions Guides (PAGs). The Thyroid-CDE Dose > 2.OE+03 mRem correspond directly to an CDE dose rate value of 500 mRem/hr and exceeds 10% of the EPA Protective Actions Guides (PAGs) which was established in consideration of the 1:5 ratio of the EPA PAG for TEDE and thyroid CDE..Dose Assessment using actual meteorological data provides an accurate indication of release magnitude.
The use of dose assessment based EALs is therefore preferred over the use of Release Rate based EALs which utilize calculations which have built-in inaccuracies because ODCM default Meteorological data is used.SAE EALs Values: (EAL# RS1.2)Dose Assessment TEDE 4-Day Dose > 4.OE+02 mRem Dose Assessment CDE Dose > 2.OE+03 mRem -based on Dose Assessment using Plant Vent effluent isotopic sample analysis as input to MIDAS and NOT based on a default Noble Gas to Iodine Ratio Hope Creek Page 11 of 17 Rev. 0 (Draft E)
HCGS ECG -EAL Technical Bases EP-HC-1 11-235 Hope Creek Radiological EAL Setpoint Calculation Document NEI 99-01, Rev. 05 EALs Calculation for: SITE AREA EMERGENCY
-EAL AS1.4 -(PA boundary dose rate)Objective of Calculation:
I Provide a PROTECTED AREA Boundary dose rate that equates to an offsite dose of > 100 mRem TEDE.Discussion:
This IC addresses radioactivity releases that result in field survey results (closed window) dose rates greater than 100 mR/hr expected to continue for 60 minutes or longer at or beyond the site boundary.
This value exceeds 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.Derivation
/ Calculation:
A Field Measured Dose Rate of> 1.0E+02 mRem/hr corresponds directly to a dose values that exceed 10% of the EPA Protective Actions Guides (PAGs).SAE EAL Value: (EAL# RS1.3)Dose Rate > 100 mRem/hr Hope Creek Page 12 of 17 Rev. 0 (Draft E)
HCGS ECG -EAL Technical Bases EP-HC- 111-23 5 Hope Creek Radiological EAL Setpoint Calculation Document NEI 99-01, Rev. 05 EALs Calculation for: SITE AREA EMERGENCY
-EAL AS1.4 -(1-131 Field Survey Sample Analysis)Objective of Calculation:
Provide a Field Survey Sample Analysis value that equates to an offsite release that would result in a dose of> 500 mRem Thyroid CDE at or beyond the PROTECTED AREA Boundary.Discussion:
This EAL addresses a radioactivity release field survey 1-131 sample concentration or count rate that would result in a Thyroid CDE dose of greater than 500 mRern for one hour of inhalation at or beyond the site boundary.
This value exceeds 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.The Iodine-131 field survey sample concentration and count rate threshold is based on 1-131 dose conversion factors (DCFs) from EPA-400. The thresholds are based on a Thyroid-CDE Dose Rate of> 500 mRem/hr for 1-13 1.Field Survey 1-131 Sample Analysis results are provided as sample concentration in units of uCi/cc for field samples counted in a Multi-Channel-Analyzer (MCA).Derivation
/ Calculation:
The release sample concentration calculations are as follows.The sample concentration is calculated using the 1-131 Dose Conversion Factor from EPA-400: Solving the following equation for pmCi/cc: mRem/hr = (jiCi/cc)(Dose Conversion Factor)Then;1-131 Sample Concentration
([tCi/cc)
= ( ) 7 3.85E-07 (O Ri/c/1.30E + 09t ReM / pCi / cc / hr Where 1.30E+09 mRem/[Ci/cc/hr is the Dose Conversion Factor from EPA-400, Table 5-4, Thyroid Dose, and includes the EPA breathing rate.SAE EAL Values: (EAL# RSJ.3)1-131 Concentration
> 3.85E-07 jtCi/cc Hope Creek Page 13 of 17 Rev. 0 (Draft E)
HCGS ECG -EAL Technical Bases EP-HC-1 11-235 Hope Creek Radiological EAL Setpoint Calculation Document NEI 99-01, Rev. 05 EALs Calculation for: GENERAL EMERGENCY
-EAL AG1.1 -(Default Release Rate EAL)Objective of Calculation:
Provide a Radiological Release Rate value that equates to a Release resulting in an offsite dose of> 1000 mrem TEDE at or beyond the site boundary.Discussion:
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.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. Iodine Release Rates for this EAL are excluded since the Plant Vent Radiation Monitoring System does not include an Iodine detector.The meteorology and source term used are the same as used for determining AU1 and AA1 monitor reading EALs.Release Rate = Total Noble Gas Release Rate from Hope Creek which would result in a TEDE Dose Rate of > 1000 mRem/hr at the site boundary or beyond.Derivation
/ Calculation:
ODCM Limit Calculation for Noble Gas: Release Rate (uCi/Sec)
= (1 00%ofPA G)m Re n (accumulatedinlhour)(ODCMX / Q) * (ODCMDRCF) 100% of PAG = 1000 mRem/hr dose accumulated in 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> Hope Creek ODCM X/Q = 2.14E-06 sec/m 3 HC ODCM DRCF = 8.9E-01 mRem/hr/uCi/m 3 (7.80E+03 mRem/yr/uCi/
M3 / 8766 hrs/yr)Site Allocation Factor = not used for SAE and GE EALs Release Rate (uCi/Sec)
= 1 OOOn Re n(doseaccumulatedinlhour)
(2.14E -06sec/ 7n 3) * (8.9E -0 li Re n / hr / uCi / u13)GE EAL Value: (EAL# RGJ.1)Total Hope Creek Noble Gas Release Rate > 5.25E+08 uCi/Sec Hope Creek Page 14 of 17 Rev. 0 (Draft E)
HCGS ECG -EAL Technical Bases EP-HC-1 11-235 Hope Creek Radiological EAL Setpoint Calculation Document NEI 99-01, Rev. 05 EALs Calculation for: GENERAL EMERGENCY
-EAL AG1.2 -(Dose Assessment)
Objective of Calculation:
Using actual meteorology, provide a dose assessment SSCL threshold TEDE 4-Day Dose value that is equivalent to a TEDE dose of> 1000 mRem and a Thyroid-CDE Dose of> 5000 mRem.Discussion:
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 involve fuel damage.Derivation
/ Calculation:
The dose assessment output on the SSCL is reported at varying distances from the plant as a TEDE 4-Day dose. This TEDE 4-day dose assumes a 4 hr release duration.
To obtain the approximate dose for a projected release condition of 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, the TEDE 4-day dose value would need to be divided by 4.A TEDE 4-Day Dose > 4.0E+03 mRem correspond directly to an EDE dose rate value of> 1000 mRem/hr and exceeds the EPA Protective Actions Guides (PAGs). The Thyroid-CDE Dose >2.OE+04 mRem correspond directly to an CDE dose rate value of> 5000 mRem/hr and exceeds the EPA Protective Actions Guides (PAGs) which was established in consideration of the 1:5 ratio of the EPA PAG for TEDE and thyroid CDE..Dose Assessment using actual meteorological data provides an accurate indication of release magnitude.
The use of dose assessment based EALs is therefore preferred over the use of Release Rate based EALs which utilize calculations which have built-in inaccuracies because ODCM default Meteorological data is used.GE EAL Values: (EAL# RGJ.2)Dose Assessment TEDE 4-Day Dose > 4.OE+03 mRem Dose Assessment CDE Dose > 2.OE+04 mRem -based on Dose Assessment using Plant Vent effluent isotopic sample analysis as input to MIDAS and NOT based on a default Noble Gas to Iodine Ratio Hope Creek Page 15 of 17 Rev. 0 (Draft E)
HCGS ECG -EAL Technical Bases EP-HC-111-235 Hope Creek Radiological EAL Setpoint Calculation Document NEI 99-01, Rev. 05 EALs Calculation for: GENERAL EMERGENCY
-EAL AG1.4 -(PA boundary dose rate)Objective of Calculation:
Provide a PROTECTED AREA Boundary dose rate that equates to an offsite dose of >1000 mRem TEDE.Discussion:
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.Derivation
/ Calculation:
A Field Measured Dose Rate of> 1.OE+03 mRem/hr corresponds directly to a dose values that exceed the EPA Protective Actions Guides (PAGs).GE EAL Value: (EAL# RG1.3)Dose Rate > 1000 mRem/hr Hope Creek Page 16 of 17 Rev. 0 (Draft E)
HCGS ECG -EAL Technical Bases EP-HC-111-235 Hope Creek Radiological EAL Setpoint Calculation Document NEI 99-01, Rev. 05 EALs Calculation for: GENERAL EMERGENCY
-EAL AG1.4 -(1-131 Field Survey Sample Analysis)Objective of Calculation:
Provide a Field Survey Sample Analysis value that equates to an offsite release that would result in a dose of> 5000 mRem Thyroid CDE at or beyond the PROTECTED AREA Boundary.Discussion:
This EAL addresses a radioactivity release field survey 1-131 sample concentration or count rate that would result in a Thyroid CDE dose of greater than 5000 mRem for one hour of inhalation at or beyond the site boundary.
This value exceeds 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.The Iodine- 131 field survey sample concentration and count rate threshold is based on 1-131 dose conversion factors (DCFs) from EPA-400. The thresholds are based on a Thyroid-CDE Dose Rate of> 5000 mRem/hr for 1-131.Field Survey 1-131 Sample Analysis results are provided as sample concentration in units of uCi/cc for field samples counted in a Multi-Channel-Analyzer (MCA).Derivation
/ Calculation:
The release sample concentration calculations are as follows.The sample concentration is calculated using the 1-131 Dose Conversion Factor from EPA-400: Solving the following equation for gCi/cc: mRem/hr = (jtCi/cc)(Dose Conversion Factor)Then;5000ni Re ii / hr 1-131 Sample Concentration (jiCi/cc)
= O+0nRei c = 3.85E-06 LCilcc L'.30E + 0977 Re 77 / pCi / cc / hr Where 1.30E+09 mRem/ýiCi/cc/hr is the Dose Conversion Factor from EPA-400, Table 5-4, Thyroid Dose, and includes the EPA breathing rate.GE EAL Values: (EAL# RG1.3)1-131 Concentration
> 3.85E-06 ptCi/cc Hope Creek Page 17 of 17 Rev. 0 (Draft E)