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Category:Memoranda
MONTHYEARML22321A1042022-12-0101 December 2022
Lessons Learned Recommendations Effectiveness Review
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Summary of Public Meeting Near the Pilgrim Nuclear Power Station Regarding the Establishment and Operation of Community Advisory Boards
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Quarterly Report on the Status of Public Petitions Under Title 10 of the Code of Federal Regulations, Section 2.206 - April 1 to June 30, 2019
ML18158A1302018-06-0707 June 2018
Evaluation - Memorandum Regarding Licensee Event Report Safety Significance Review in Response to Findings Associated with Inspection Procedure 95003; Evaluation of NRC Assessment and Inspection Processes at Pilgrim Nuclear Power Station
ML18157A0402018-06-0606 June 2018
Inspection Procedure 95003: Evaluation of NRC Assessment and Inspection Processes at Pilgrim Nuclear Power Station
ML18158A1332018-06-0606 June 2018
Extent of Condition Review in Response to Findings Associated with Inspection 95003: Evaluation of NRC Assessment and Inspection Processes at Pilgrim Nuclear Power Station
ML16153A2762016-06-20020 June 2016
Memo - Transmittal of the Final Pilgrim Nuclear Power Station Accident Sequence Analysis
ML16088A2042016-03-28028 March 2016
Memo T Bowers from s Ruffin, Technical Assistance Requests - Review 2015 Tri-Annual Decommissioning Funding Plans for Multiple Independent Spent Fuel Storage Installations W/ Encl 2 (Template)
ML16088A2052016-03-28028 March 2016
Enclosure 1 - (72.30 DFP Reviews to Be Completed 2015) - Memo T Bowers from s Ruffin, Technial Assistance Requests - Review 2015 Tri-Annual Decommissioning Funding Plans for Multiple Independent Spent Fuel Storage Installations
ML14294A5712014-11-0404 November 2014
Memo - Transmittal of the Final Pilgrim Nuclear Power Station Accident Sequence Analysis
ML14300A0962014-10-28028 October 2014
Staff Review of the Pilgrim Physical Security Plan (Revision 12) for the Independent Spent Fuel Storage Installation Security and Verification of ASM Incorporation (TAC L24940)
ML14232A3012014-08-20020 August 2014
Memo s Wastler, Technical Assistance Request - Review of Physical Security Plan for the Pilgrim Nuclear Power Stations (TAC No. L24940) Docket Nos. 72-1044, 50-293
ML14086A2912014-04-22022 April 2014
Summary of Telephone Conference Regarding the Verbal Authorization of Relief Request PRR-25, Revision 1
ML13351A2732014-01-0909 January 2014
G20130846/LTR-13-0911 - James Brett, the New England Council Ltr. Chairman'S Recent Tour and the Council'S Support for the Pilgrim Nuclear Power Station - Response
ML13309A0802013-12-11011 December 2013
Memorandum to File: Transcript for 10 CFR 2.206 Petition from Beyond Nuclear (Et Al) Regarding General Electric Mark I and Mark II Boiling-Water Reactors
ML13267A2342013-08-30030 August 2013
G20130629 - Pilgrim Watch'S 2.206 Petition to Pilgrim'S Emergency Preparedness Plans (MF2656)
ML13108A3282013-04-22022 April 2013
Notice of Forthcoming Meeting with Petitioners Requesting Action Against Entergy Nuclear Operations, Inc., Regarding Operations at FitzPatrick, Pilgrim, and Vermont Yankee Nuclear Power Stations (TAC Nos. MF1092, MF1093, and MF1094)
ML13196A2202012-06-0606 June 2012
Memo from B. Balsam, NRR and D. Logan, NRR to J. Susco, NRR on Summary of Section 7 Consultation Activities Related to the National Marine Fisheries Service'S Final Rule to List the Atlantic Sturgeon
ML12137A0602012-05-29029 May 2012
Nuclear Regulatory Commission'S Analysis of Entergy Nuclear Operations, Inc. Decommissioning Funding Status Report for Indian Point Nuclear Generating Station, Units 1, 2 & 3; and Pilgrim Nuclear Power Station
ML12090A2122012-03-30030 March 2012
Referring Jones River Watershed Association Petition to Intervene and Request to File New Contentions, or in Alternative, Jones River Watershed Association and Pilgrim Water Motion to Reopen the Pilgrim Nuclear Power Station, Docket No. 50-
ML11250A1712011-09-14014 September 2011
Notice of Forthcoming Meeting with Petitioner Requesting Action Under 10 CFR 2.206 Regarding Immediate Suspension of the Operating Licenses of General Electric (GE) Mark 1 Boiling Water Reactors (Bwrs)
ML11174A3252011-06-30030 June 2011
Memo Forwarding of Supplement 2 to NUREG-1891, SER Related to the Lr of Pilgrim Nuclear Power Station, Docket No. 50-293, to the Advisory Committee on Reactor Safeguards
ML1115704052011-06-0606 June 2011
Notice of Meeting with Entergy Operations, Inc., to Discuss Implementation of Quality Oversight and Verification Programs at Entergy Sites Including Actions Being Taken to Enhance Effectiveness
ML11126A0962011-05-12012 May 2011
Notice of Meeting with Petitioner Requesting Action Under 10CFR2.206 Regarding Immediate Suspension of Operating Licenses of General Electric Mark 1 Boiling Water Reactors
ML1109700342011-04-19019 April 2011
Summary of Tele Conf Call Held on 4/6/11, Between the USNRC and Entergy Nuclear Operations, Inc., Concerning the Pilgrim Nuclear Power Station License Renewal Application
ML1108206892011-04-19019 April 2011
February 24, 2011, Summary of Telephone Conference Call Held Between NRC and Entergy Nuclear Operations, Inc., Concerning the Pilgrim Nuclear Power Station License Renewal Application
ML1108202082011-04-11011 April 2011
Summary of Telephone Conference Call Held on March 23, 2011, Between the USNRC and Entergy Nuclear Operations, Inc., Concerning the Pilgrim Nuclear Power Station License Renewal Application
ML1107504052011-03-21021 March 2011
Notice of Meeting with Entergy Operations, Inc., to Discuss Fleetwide Submittal for Proposed Technical Specification and Quality Assurance Program Manual Changes Related to Unit Staff Qualification Requirements
ML1100404192011-02-15015 February 2011
Summary of Telephone Conference Call Held on December 6, 2010, Between the U.S. Nuclear Regulatory Commission and Entergy Nuclear Operating, Inc., Concerning the Pilgrim Nuclear Power Station License Renewal Application (Tac No. MC9669)
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Notification of Information in the Matter of Pilgrim Nuclear Power Station
ML0927301372009-10-0909 October 2009
Safety Evaluation by the Office of Nuclear Reactor Regulation Corporate Restructuring Conversion of Companies and Stock Split-Off by Entergy Nuclear Operations, Inc and Subsidiaries
ML1029505722009-01-23023 January 2009
Task Interface Agreement - Evaluation of Application of Technical Specification 4.0.3, Surveillance Requirement Applicability, at Pilgrim
ML0836601742009-01-23023 January 2009
TIA - Task Interface Agreement - Evaluation at Pilgrim of Application of TS 4.0.3, 12/31/08
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Task Interface Agreement Evaluation of Application of Technical Specification 4.0.3, Surveillance Requirement Applicability, at Pilgrim
ML0807400842008-03-14014 March 2008
Draft Regulatory Guide for Comment
ML0718400342007-07-0606 July 2007
ACRS Review of the Pilgrim Nuclear Power Station License Renewal Application - Safety Evaluation Report
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Summary of Conference Call on May 10, 2007, with Entergy Nuclear Operations, Inc., Regarding the Pilgrim License Renewal Application
ML0708104422007-03-15015 March 2007
Request for Additional Information on Time-Limited Aging Analyses for the Reactor Vessel and Internals, Pilgrim Nuclear Power Station, License Renewal Application
ML0706402522007-03-0606 March 2007
ACRS Review of the Pilgrim Nuclear Plant Station Renewal Application - Safety Evaluation Report
ML0705402052007-03-0101 March 2007
01/24/2007 Summary of Meeting with Pilgrim on the Draft Supplemental Environmental Impact Statement Regarding Pilgrim License Renewal Review
ML0700501532007-01-0808 January 2007
01/24/2007 Notice of Forthcoming Meeting to Discuss the Draft Supplemental Environmental Impact Statement for the License Renewal of Pilgrim Nuclear Power Station
ML0634800242006-12-13013 December 2006
Drop-In Visit from Entergy (Pilgrim)
ML0633406952006-11-28028 November 2006
Memorandum to Levin from Albert, Access to Security, Radiological, Vital and Protected Areas of the Pilgrim Nuclear Station
ML0629104322006-11-17017 November 2006
Final Response to Task Interface Agreement 2006-01 Related to the Adequacy of Emergency Diesel Generator and Shutdown Transformer Load Testing at Pilgrim Nuclear Power Station
ML0627605082006-11-0707 November 2006
Summary of Conference Call on September 25, 2006, with Entergy Nuclear Operations, Inc
ML0628504072006-10-23023 October 2006
2006/10/23-Summary of Conference Call on October 10, 2006 with Entergy Nuclear Operations. Inc., to Clarify Information Sent to the NRC in Response to Requests for Additional Information Regarding the Pilgrim License Renewal Application
ML0625801622006-09-15015 September 2006
Audit Trip Report Regarding Entergy Nuclear Operations Inc. License Renewal Application for Pilgrim Nuclear Power Station, Dated January 25, 2006
ML0617000552006-07-13013 July 2006
2006/07/13-Summary of Public Scoping Meetings Conducted Related to the Review of the Pilgrim Nuclear Power Station, License Renewal Application
ML0618104242006-06-30030 June 2006
2006/06/30- 07/19/2006 Notice of Forthcoming Exit Meeting with Entergy Nuclear Operations, Inc., on License Renewal Scoping and Screening Methodology and the Aging Management Program / Aging Management Review Audits for Pilgrim Nuclear Powe
2022-12-01
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November 4, 2014 MEMORADUM TO: Michele G. Evans, Director Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation FROM: Richard P. Correia, Director /RA/
Division of Risk Analysis Office of Nuclear Regulatory Research
SUBJECT:
TRANSMITTAL OF FINAL PILGRIM NUCLEAR POWER STATION ACCIDENT SEQUENCE PRECURSOR ANALYSIS This memorandum transmits the final results of an accident sequence precursor (ASP) analysis of an operational event that occurred at Pilgrim Nuclear Power Station on October 14, 2013.
The Office of Nuclear Regulatory Research (RES) did not request a formal analysis review from the licensee in accordance with U.S. Nuclear Regulatory Commission Regulatory Issue Summary 2006-24, Revised Review and Transmittal Process for Accident Sequence Precursor Analyses, because the analysis had a preliminary conditional core damage probability (CCDP) of less than 1x10-4. The final results determined that the operational event had a best estimate CCDP of 3x10-5; and therefore, is not considered a significant precursor. A copy of the preliminary analysis was provided to the Office of Nuclear Reactor Regulation (NRR) and Region I staff as a courtesy; no feedback was provided.
The ASP Program continues to systematically review licensee event reports (LERs) and all other event reporting information [e.g., inspection reports (IRs)] for potential precursors, and to analyze those events which have the potential to be precursors. The complete summary of all FY 2014 precursors will be provided in the annual Commission paper on the status of the ASP Program and Standardized Plant Analysis Risk (SPAR) Models due to be issued in October 2015.
Transmittal to Licensee Requested. We are requesting NRR to send the enclosed final ASP analysis to the licensee for their information. The ASP analysis will be made publically available after the analysis has been transmitted to the licensee. Please inform us when the ASP analysis has been sent to the licensee.
CONTACT: Christopher Hunter, RES/DRA/PRB 301-251-7575
M. Evans Final ASP Analysis Summary. A brief summary of the final ASP analysis, including the results, is provided below.
Loss of Offsite Power during Line Maintenance (October 2013) at Pilgrim Nuclear Power Station. This event is documented in LER 293/13-009 and in IR 05000293/2013005.
Executive Summary. On October 14, 2013 at 2121 hours0.0245 days <br />0.589 hours <br />0.00351 weeks <br />8.070405e-4 months <br />, with the reactor critical at 100%
power and offsite power 345kV line 342 out of service for a scheduled upgrade, a loss of offsite power (LOOP) occurred due to the loss of the second 345kV line 355. This resulted in a generator full load reject and a reactor scram. The cause of line 355 loss was due to a failure of an offsite substation tower support. All control rods fully inserted, main steam isolation valves closed on the loss of power to the reactor protection system, and the emergency diesel generators (EDGs) automatically started supplying power to both 4160V safety buses.
A plant cool down commenced with reactor water level being maintained by the high pressure coolant injection (HPCI) and reactor core isolation cooling (RCIC) systems. The offsite tower was repaired and line 355 was energized at 2023 hours0.0234 days <br />0.562 hours <br />0.00334 weeks <br />7.697515e-4 months <br /> on October 15th, approximately 23 hours2.662037e-4 days <br />0.00639 hours <br />3.80291e-5 weeks <br />8.7515e-6 months <br /> after the LOOP initiated.
According to the risk analysis modeling assumptions used in this ASP analysis, the most likely core damage sequence is a non-recoverable loss of offsite power and subsequent station blackout (SBO) due to postulated failures of all EDGs (including the SBO diesel generator) and the failure to restore power to a safety bus prior to battery depletion. This accident sequence accounts for approximately 44% of the CCDP for the event. In general, these results are consistent with at-power LOOP events previously analyzed by the ASP Program at other BWRs.
Summary of Analysis Results. This operational event resulted in a best estimate CCDP of 3x10-5. The detailed ASP analysis can be found in the enclosure.
Sensitive Information. The detailed ASP analysis has been reviewed in accordance with current guidance for sensitive unclassified non-safeguards information, and it has been determined that it may be released to the public.
Enclosure:
As stated
ML14294A557 OFFICE RES/DRA/PRB RES/DRA/PRB RES/DRA/PRB RES/DRA NAME C. Hunter J. Nakoski SUNSI R. Correia DATE 10/22/14 10/24/14 10/22/14 11/04/14