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| {{#Wiki_filter:From: Guzman, Richard Sent: Tuesday, June 08, 2010 12:53 PM To: Darling, Theresa H Cc: Dosa, John J | | {{#Wiki_filter:From: Guzman, Richard Sent: Tuesday, June 08, 2010 12:53 PM To: Darling, Theresa H Cc: Dosa, John J |
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| ==Subject:== | | ==Subject:== |
| Follow-up RAI Question - Nine Mile Point Unit 2 EPU - Probabilistic Risk Assessment Review Theresa, The NRC staff is reviewing the Nine Mile Point Nuclear Station, LLC (NMPNS or the licensee) license amendment request application dated May 27, 2009, and has determined that additional information requested below will be needed to complete its review in the probabilistic risk assessment (PRA) area. Below is the staff's request for additional information (RAI). The RAI was discussed with you on June 8, 2010, and it was agreed that your response would be provided within 30 days of the date of this request. | | Follow-up RAI Question - Nine Mile Point Unit 2 EPU - Probabilistic Risk Assessment Review |
| | : Theresa, The NRC staff is reviewing the Nine Mile Point Nuclear Station, LLC (NMPNS or the licensee) license amendment request application dated May 27, 2009, and has determined that additional information requested below will be needed to complete its review in the probabilistic risk assessment (PRA) area. Below is the staffs request for additional information (RAI). The RAI was discussed with you on June 8, 2010, and it was agreed that your response would be provided within 30 days of the date of this request. |
| : 1. Section 2.13.1.3.2 of the submittal provides a brief explanation of the impact of EPU on fire ignition frequency for the NMP2 PRA. It states that frequency of fires is not dependent on reactor power or operation, however; it further states that there is a potential risk increase due to decrease in human reliability. The greatest increase in risk from EPU implementation derives from less time operators have to perform necessary actions. The EPU may not have an impact on Fire Ignition Frequency or Fire Mitigation; however, it may have an impact on operator actions after a fire has been identified and/or mitigated due to less available time. | | : 1. Section 2.13.1.3.2 of the submittal provides a brief explanation of the impact of EPU on fire ignition frequency for the NMP2 PRA. It states that frequency of fires is not dependent on reactor power or operation, however; it further states that there is a potential risk increase due to decrease in human reliability. The greatest increase in risk from EPU implementation derives from less time operators have to perform necessary actions. The EPU may not have an impact on Fire Ignition Frequency or Fire Mitigation; however, it may have an impact on operator actions after a fire has been identified and/or mitigated due to less available time. |
| Please provide additional information explaining the potential decreases in time related to operator actions for fire scenarios. Describe the potential risk increases due to decreases in human reliability for fire scenarios resulting from the proposed EPU implementation. | | Please provide additional information explaining the potential decreases in time related to operator actions for fire scenarios. Describe the potential risk increases due to decreases in human reliability for fire scenarios resulting from the proposed EPU implementation. |
| Thanks, Rich Guzman Sr. Project Manager NRR/DORL US NRC 301-415-1030 Richard.Guzman@nrc.gov E-mail Properties Mail Envelope Properties (92E0E77F3622DA40B501E8D45083D5D9508499C92D) | | : Thanks, Rich Guzman Sr. Project Manager NRR/DORL US NRC 301-415-1030 Richard.Guzman@nrc.gov E-mail Properties Mail Envelope Properties (92E0E77F3622DA40B501E8D45083D5D9508499C92D) |
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| ==Subject:== | | ==Subject:== |
| Follow-up RAI Question - Nine Mile Point Unit 2 EPU - Probabilistic Risk Assessment Review Sent Date: 6/8/2010 12:53:01 PM Received Date: 6/8/2010 12:52:00 PM From: Guzman, Richard Created By: Richard.Guzman@nrc.gov | | Follow-up RAI Question - Nine Mile Point Unit 2 EPU - Probabilistic Risk Assessment Review Sent Date: 6/8/2010 12:53:01 PM Received Date: 6/8/2010 12:52:00 PM From: Guzman, Richard |
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| Recipients: | | Created By: Richard.Guzman@nrc.gov Recipients: |
| Theresa.Darling@cengllc.com (Darling, Theresa H) | | Theresa.Darling@cengllc.com (Darling, Theresa H) |
| Tracking Status: None John.Dosa@cengllc.com (Dosa, John J) | | Tracking Status: None John.Dosa@cengllc.com (Dosa, John J) |
| Tracking Status: None | | Tracking Status: None Post Office: |
| | | HQCLSTR01.nrc.gov Files Size Date & Time MESSAGE 11045 6/8/2010 Options Expiration Date: |
| Post Office: | | Priority: olImportanceNormal ReplyRequested: False Return Notification: False Sensitivity: olNormal Recipients received:}} |
| HQCLSTR01.nrc.gov | |
| | |
| Files Size Date & Time | |
| | |
| MESSAGE 11045 6/8/2010 | |
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| Options Expiration Date: | |
| Priority: olImportanceNormal ReplyRequested: False Return Notification: False | |
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| Sensitivity: olNormal Recipients received:}} | |
Letter Sequence RAI |
|---|
TAC:ME1476, Clarify Application of Setpoint Methodology for LSSS Functions (Approved, Closed) |
Initiation
- Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request
- Acceptance, Acceptance, Acceptance
- Supplement, Supplement, Supplement, Supplement
Administration
- Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance
- Meeting, Meeting
Results
Other: ML092460553, ML092460595, ML092460596, ML100190073, ML100190074, ML100190075, ML100190076, ML100190077, ML101300006, ML101900448, ML101900449, ML101900450, ML101950497, ML101950498, ML103050187, ML110460160, ML110830414, ML110880302, ML11171A060, ML111950133, ML112031112, ML11221A013, ML112450479, ML112460008, ML112460009, ML11321A257, ML113300047, ML113340186, ML120050150, ML120250137, ML12313A203, ML12313A204, ML12313A206, NRC-2010-0117, Final Environmental Assessment and Finding of No Significant Impact - Federal Register Notice - Related to the Proposed License Amendment to Increase the Maximum Reactor Power Level
|
MONTHYEARML1001900772004-03-31031 March 2004
GE-NE-0000-0024-6517-R0, Safer/Gestr Loss-of-Coolant Accident Analysis for GE14 Fuel
Project stage: Other
ML0916101032009-05-27027 May 2009
License Amendment Request (LAR) Pursuant to 10 CFR 50.90: Extended Power Uprate
Project stage: Request
ML0918906662009-07-0808 July 2009
E-mail from R. Guzman to J. Dosa Acceptance Review Results of NMP2 Extended Power Uprate Application
Project stage: Acceptance Review
ML0919402542009-07-15015 July 2009
Acceptance Review of License Amendment Request Extended Power Uprate
Project stage: Acceptance Review
ML0921804072009-08-0303 August 2009
Report Pursuant to 10 CFR 50.46, Changes to or Errors in an ECCS Evaluation Model
Project stage: Request
AEP-NRC-2009-54, Annual Report of Loss-of-Coolant Accident Evaluation Model Changes2009-08-28028 August 2009
Annual Report of Loss-of-Coolant Accident Evaluation Model Changes
Project stage: Request
ML0924605532009-08-28028 August 2009
Attachment 3 - CDI Report 08-08NP, Revision 2, (Non-Proprietary) Acoustic and Low Frequency Hydrodynamic Loads at CLTP Power Level on Nine Mile Point, Unit 2 Steam Dryer to 250 Hz
Project stage: Other
ML0924605952009-08-28028 August 2009
Attachment 2 - CDI Report 09-26NP, Revision 0, (Non-Proprietary) Stress Assessment of Nine Mile Point, Unit 2 Steam Dryer at CLTP and EPU Conditions, Part 1 of 2
Project stage: Other
ML0924605962009-08-28028 August 2009
Attachment 2 - CDI Report 09-26NP, Revision 0, (Non-Proprietary) Stress Assessment of Nine Mile Point, Unit 2 Steam Dryer at CLTP and EPU Conditions, Part 2 of 2
Project stage: Other
ML0924605502009-08-28028 August 2009
Response to Acceptance Review Comments License Amendment Request for Extended Power Uprate
Project stage: Request
ML0924502742009-09-0202 September 2009
Acceptance Review Determination of Amendment Request and Supplemental Information Extended Power Uprate
Project stage: Acceptance Review
ML1019704202009-09-18018 September 2009
E-mail from R. Guzman to J. Dosa Request for Additional Information - Clarification of Applicability of GEH Methods
Project stage: RAI
ML0928100032009-10-0808 October 2009
Request for Additional Information Nine Mile Point Unit 2 (NMP2) Extended Power Uprate Application License Amendment Request
Project stage: RAI
ML0930800012009-11-13013 November 2009
Request for Additional Information Extended Power Uprate
Project stage: RAI
ML0931900032009-11-18018 November 2009
Request for Additional Information the License Amendment Request for Extended Power Uprate
Project stage: RAI
ML0934106852009-12-10010 December 2009
Request for Withholding Information from Public Disclosure - Proposed License Amendment for Extended Power Uprate Operation Dated May 27, 2009 GEH Proprietary Documents - Nine Mile Point Nuclear Station Unit No. 2
Project stage: Withholding Request Acceptance
ML0934300032009-12-10010 December 2009
Request for Withholding Information from Public Disclosure - Proposed License Amendment for Extended Power Uprate Operation, Supplement Dated August 28, 2009 C.D.I Proprietary Documents - Nine Mile Point Nuclear Station Unit No. 2
Project stage: Withholding Request Acceptance
ML0932706132009-12-10010 December 2009
Request for Withholding Information from Public Disclosure - Proposed License Amendment for Extended Power Uprate Operation Dated May 27, 2009 C.D.I Proprietary Documents - Nine Mile Point Nuclear Station Unit No. 2
Project stage: Withholding Request Acceptance
ML0935110252009-12-23023 December 2009
Request for Additional Information Extended Power Uprate License Amendment Request
Project stage: RAI
ML1001900722009-12-23023 December 2009
Response to Request for Additional Information, Regarding License Amendment Request for Extended Power Uprate Operation
Project stage: Response to RAI
ML1001900732009-12-31031 December 2009
C.D.I. Technical Note No. 09-17NP, Limit Curve Analysis with ACM Rev. 4 for Power Ascension at Nine Mile Point, Unit 2, Revision 0
Project stage: Other
ML1001900742009-12-31031 December 2009
C.D.I. Report No. 08-08NP, Acoustic and Low Frequency Hydrodynamic Loads at CLTP Power Level on Nine Mile Point Unit 2 Steam Dryer to 250 Hz, Revision 3
Project stage: Other
ML1001900752009-12-31031 December 2009
CDI Report No. 09-26NP, Stress Assessment of Nine Mile Point, Unit 2 Steam Dryer at CLTP and EPU Conditions, Cover to Page 62, Revision 1
Project stage: Other
ML1001900762009-12-31031 December 2009
CDI Report No. 09-26NP, Stress Assessment of Nine Mile Point, Unit 2 Steam Dryer at CLTP and EPU Conditions, Page 63 Through 130, Revision 1
Project stage: Other
ML1019704362010-01-12012 January 2010
E-mail from R. Guzman to T. Darling Request for Additional Information - Extended Power Uprate LAR Standby Liquid Control System
Project stage: RAI
BVY 10-001, 10CFR50.46(a)(3)(ii) Annual Report for 20092010-01-14014 January 2010
10CFR50.46(a)(3)(ii) Annual Report for 2009
Project stage: Request
ML1019704452010-01-27027 January 2010
E-mail from R. Guzman to T. Darling Request for Additional Information Extended Power Uprate - Clarification for Piping NDE Review
Project stage: RAI
ML1019704532010-02-0101 February 2010
E-mail from R. Guzman to T. Darling Request for Additional Information Extended Power Uprate LAR - Clarification in Fire Protection Review RAI D1, D3
Project stage: RAI
ML1005505992010-02-19019 February 2010
Response to Request for Additional Information Regarding License Amendment Request for Extended Power Uprate Operation
Project stage: Response to RAI
ML1006301062010-03-10010 March 2010
Notice of Forthcoming Closed Meeting with Nine Mile Point Nuclear Station, LLC to Discuss the Review of Steam Dryer Analysis for the NMP2 Extended Power Uprate License Amendment Request
Project stage: Meeting
ML1006301122010-03-10010 March 2010
Request for Additional Information - Extended Power Uprate License Amendment Request Mechanical & Civil Engineering Review
Project stage: RAI
ML1006902762010-03-10010 March 2010
E-mail from R.Guzman to T.Darling Request for Additional Information - Containment & Ventilation Branch - Extended Power Uprate
Project stage: RAI
ML1006301082010-03-10010 March 2010
Request for Additional Information Steam Dryer Review of the License Amendment Request for Extended Power Uprate Operation
Project stage: RAI
ML1005508412010-03-16016 March 2010
Letter Transmitting the Draft Environmental Assessment for Nine Mile Point Nuclear Station Extended Power Uprate for Unit No. 2
Project stage: Draft Other
ML1006804292010-04-0202 April 2010
Request for Withholding Information from Public Disclosure - Proposed License Amendment for Extended Power Uprate Operation, Supplement Dated December 23, 2009 GEH Proprietary Documents - Nine Mile Point Nuclear Station Unit No. 2
Project stage: Withholding Request Acceptance
ML1006804412010-04-0202 April 2010
Request for Withholding Information from Public Disclosure - Proposed License Amendment for Extended Power Uprate Operation, Supplement December 23,2 009 C.D.I Proprietary Documents - Nine Mile Point Nuclear Station Unit No. 2
Project stage: Withholding Request Acceptance
ML1006804482010-04-0202 April 2010
Request for Withholding Information from Public Disclosure - Proposed License Amendment for Extended Power Uprate Operation, Supplement February 19, 2010 GEH Proprietary Documents - Nine Mile Point Nuclear Station Unit No. 2
Project stage: Withholding Request Acceptance
ML1008500412010-04-0202 April 2010
Summary of Audit Related to the Review of the Extended Power Uprate License Amendment Request of Nine Mile Point Nuclear Station, Unit No. 2
Project stage: Approval
ML1008500512010-04-0202 April 2010
Correction Notice to Draft Environmental Assessment for Nine Mile Point Nuclear Station Proposed Extended Power Uprate Amendment for Unit No. 2
Project stage: Draft Other
ML1008501072010-04-0202 April 2010
Letter Transmitting Correction to the Notice for the Draft Environmental Assessment and Finding of No Significant Impact for Nine Mile Point Nuclear Station, Unit No. 2
Project stage: Draft Other
ML1013000062010-04-14014 April 2010
Follow-Up Questions - EPU Vessels and Integrity Review
Project stage: Other
ML1011206582010-04-16016 April 2010
Response to Request for Additional Information Re License Amendment Request for Extended Power Uprate Operation
Project stage: Response to RAI
ML1011801752010-04-27027 April 2010
Comment (19) of David Lochbaum, on Behalf of Union of Concerned Scientists, on Petition for Rulemaking PRM-50-93, Regarding NRC Revise Its Regulations Based on Data from Multi-Rod (Assembly) Severe Fuel Damage Experiments
Project stage: Request
ML1013803072010-05-0707 May 2010
Response to Request for Additional Information Regarding Steam Dryer Review of the License Amendment Request for Extended Power Uprate Operation
Project stage: Response to RAI
ML1013200242010-05-10010 May 2010
E-mail from R. Guzman to T. Darling/J. Dosa Request for Additional Information - LOCA Analysis, Extended Power Uprate
Project stage: RAI
ML1012504242010-05-11011 May 2010
Request for Additional Information Extended Power Uprate License Amendment Request - Reactor System Review
Project stage: RAI
ML1016101682010-06-0303 June 2010
Response to Request for Additional Information Regarding the License Amendment Request for Extended Power Uprate Operation- Reactor Systems Review
Project stage: Response to RAI
RA-10-046, 10 CFR 50A6 Annual Report2010-06-0404 June 2010
10 CFR 50A6 Annual Report
Project stage: Request
ML1016101212010-06-0707 June 2010
G20100368/EDATS: OEDO-2010-0476 - Mark E. Leyse Ltr. 2.206 Petition to Lower the Licensing Basis Peak Cladding Temperature of Vermont Yankee in Order to Provide Necessary Margin of Safety in Event of LOCA
Project stage: Request
ML1015908092010-06-0808 June 2010
Request for Additional Information Extended Power Uprate - Probabilistic Risk Assessment Review
Project stage: RAI
2010-01-14
[Table View] |
Text
From: Guzman, Richard Sent: Tuesday, June 08, 2010 12:53 PM To: Darling, Theresa H Cc: Dosa, John J
Subject:
Follow-up RAI Question - Nine Mile Point Unit 2 EPU - Probabilistic Risk Assessment Review
- Theresa, The NRC staff is reviewing the Nine Mile Point Nuclear Station, LLC (NMPNS or the licensee) license amendment request application dated May 27, 2009, and has determined that additional information requested below will be needed to complete its review in the probabilistic risk assessment (PRA) area. Below is the staffs request for additional information (RAI). The RAI was discussed with you on June 8, 2010, and it was agreed that your response would be provided within 30 days of the date of this request.
- 1. Section 2.13.1.3.2 of the submittal provides a brief explanation of the impact of EPU on fire ignition frequency for the NMP2 PRA. It states that frequency of fires is not dependent on reactor power or operation, however; it further states that there is a potential risk increase due to decrease in human reliability. The greatest increase in risk from EPU implementation derives from less time operators have to perform necessary actions. The EPU may not have an impact on Fire Ignition Frequency or Fire Mitigation; however, it may have an impact on operator actions after a fire has been identified and/or mitigated due to less available time.
Please provide additional information explaining the potential decreases in time related to operator actions for fire scenarios. Describe the potential risk increases due to decreases in human reliability for fire scenarios resulting from the proposed EPU implementation.
- Thanks, Rich Guzman Sr. Project Manager NRR/DORL US NRC 301-415-1030 Richard.Guzman@nrc.gov E-mail Properties Mail Envelope Properties (92E0E77F3622DA40B501E8D45083D5D9508499C92D)
Subject:
Follow-up RAI Question - Nine Mile Point Unit 2 EPU - Probabilistic Risk Assessment Review Sent Date: 6/8/2010 12:53:01 PM Received Date: 6/8/2010 12:52:00 PM From: Guzman, Richard
Created By: Richard.Guzman@nrc.gov Recipients:
Theresa.Darling@cengllc.com (Darling, Theresa H)
Tracking Status: None John.Dosa@cengllc.com (Dosa, John J)
Tracking Status: None Post Office:
HQCLSTR01.nrc.gov Files Size Date & Time MESSAGE 11045 6/8/2010 Options Expiration Date:
Priority: olImportanceNormal ReplyRequested: False Return Notification: False Sensitivity: olNormal Recipients received:
