Letter Sequence RAI |
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Results
Other: ML13220A238, ML13317A829, ML15061A089, ML15161A413, ML15261A550, RS-13-020, Overall Integrated Plan in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events (Order Number EA-12-049), RS-13-030, Overall Integrated Plan in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051), RS-13-035, Overall Integrated Plan in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051), RS-13-118, First Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051), RS-13-119, First Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events (Order Number EA-12-049), RS-13-128, First Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051), RS-13-176, Response to Request to Additional Information - Overall Integrated Plan in Response to Commission Order Modifying License Requirements for Reliable Spent Fuel Pool Instrumentation (Order No. EA-12-051), RS-15-019, Fourth Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events (Order Number EA-12-049), RS-15-028, Fourth Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051), RS-15-202, Fifth Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051), RS-16-004, Report of Full Compliance with March 12, 2012 Commission Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051)
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MONTHYEARRS-13-030, Overall Integrated Plan in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051)2013-02-28028 February 2013
Overall Integrated Plan in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051)
Project stage: Other
RS-13-035, Overall Integrated Plan in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051)2013-02-28028 February 2013
Overall Integrated Plan in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051)
Project stage: Other
RS-13-020, Overall Integrated Plan in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events (Order Number EA-12-049)2013-02-28028 February 2013
Overall Integrated Plan in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events (Order Number EA-12-049)
Project stage: Other
ML13177A0642013-06-26026 June 2013
Request for Additional Information Regarding Overall Integrated Plan for Reliable Spent Fuel Pool Instrumentation
Project stage: RAI
RS-13-159, Response to Request for Additional - Overall Integrated Plan in Response to Commission Order Modifying License Requirements for Reliable Spent Fuel Pool Instrumentation2013-07-0303 July 2013
Response to Request for Additional - Overall Integrated Plan in Response to Commission Order Modifying License Requirements for Reliable Spent Fuel Pool Instrumentation
Project stage: Request
ML14311A5752013-07-18018 July 2013
Exelon Nuclear Standardized Radiological Emergency Plan Implementing Procedure Revisions
Project stage: Request
RS-13-176, Response to Request to Additional Information - Overall Integrated Plan in Response to Commission Order Modifying License Requirements for Reliable Spent Fuel Pool Instrumentation (Order No. EA-12-051)2013-07-18018 July 2013
Response to Request to Additional Information - Overall Integrated Plan in Response to Commission Order Modifying License Requirements for Reliable Spent Fuel Pool Instrumentation (Order No. EA-12-051)
Project stage: Other
RS-13-119, First Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events (Order Number EA-12-049)2013-08-28028 August 2013
First Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events (Order Number EA-12-049)
Project stage: Other
RS-13-128, First Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051)2013-08-28028 August 2013
First Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051)
Project stage: Other
RS-13-118, First Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051)2013-08-28028 August 2013
First Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051)
Project stage: Other
ML13275A1112013-10-29029 October 2013
Interim Staff Evaluation and Request for Additional Information Regarding the Overall Integrated Plan for Implementation of Order EA-12-051, Reliable Spent Fuel Pool Instrumentation
Project stage: RAI
ML13317A8292013-11-20020 November 2013
Mega-Tech Services, LLC Technical Evaluation Report Regarding the Overall Integrated Plan for Dresden Nuclear Power Station Units 2 and 3, TAC Nos.: MF1046 and MF1047
Project stage: Other
ML13220A2382013-11-22022 November 2013
Interim Staff Evaluation Relating to Overall Integrated Plan in Response to Order EA-12-049 - Mitigation Strategies
Project stage: Other
ML13318A9532013-11-26026 November 2013
Request for Additional Information Regarding the Overall Integrated Plan for Order EA-12-051, Reliable Spent Fuel Pool Instrumentation
Project stage: RAI
RS-15-019, Fourth Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events (Order Number EA-12-049)2015-02-27027 February 2015
Fourth Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events (Order Number EA-12-049)
Project stage: Other
RS-15-028, Fourth Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051)2015-02-27027 February 2015
Fourth Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051)
Project stage: Other
ML15061A0892015-02-27027 February 2015
Fourth Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051)
Project stage: Other
ML15161A4132015-06-11011 June 2015
Plan for the Onsite Audit Regarding Implementation of Mitigating Strategies and Reliable Spent Fuel Pool Instrumentation Related to Orders EA-12-049 and EA-12-051
Project stage: Other
RS-15-202, Fifth Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051)2015-08-28028 August 2015
Fifth Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051)
Project stage: Other
ML15261A5502015-10-0909 October 2015
Report for the Onsite Audit Regarding Implementation of Mitigating Strategies and Reliable Spent Fuel Pool Instrumentation Related to Orders EA-12-049 and EA-12-051
Project stage: Other
RS-16-004, Report of Full Compliance with March 12, 2012 Commission Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051)2016-01-12012 January 2016
Report of Full Compliance with March 12, 2012 Commission Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051)
Project stage: Other
2013-07-18
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Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 Mr. Michael J. Pacilio Senior Vice President Exelon Generation Company, LLC President and Chief Nuclear Officer Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555 November 26, 2013
SUBJECT:
QUAD CITIES NUCLEAR POWER STATION, UNITS 1 AND 2-REQUEST FOR ADDITIONAL INFORMATION REGARDING THE OVERALL INTEGRATED PLAN FOR ORDER EA-12-051, RELIABLE SPENT FUEL POOL INSTRUMENTATION (TAC NOS. MF1052 AND MF1053)
Dear Mr. Pacilio:
By letter1 dated February 28, 2013, Exelon Generation Company, LLC (the licensee) submitted the overall integrated plan for Quad Cities Nuclear Power Station, Units 1 and 2, to the U.S.
Nuclear Regulatory Commission (NRC) in response to the March 12, 2012, Commission Order modifying licenses with regard to requirements for reliable spent fuel pool instrumentation (Order EA-12-051 ). The licensee provided supplemental information by letters2 dated July 3, and August 28, 2013. By letter3 dated October 9, 2013, the NRC staff issued an interim staff evaluation and request for additional information (RAI) regarding the overall integrated plan.
During a teleconference held on October 22, 2013, the NRC staff informed the licensee that it needs additional information regarding the spent fuel pool instrumentation that was not identified as an RAI in the interim staff evaluation. The specific information requested is addressed in the enclosure to this letter.
Please provide a response to this information request in the 6-month status updates, as the information becomes available, but not later than September 30, 2014. This schedule is consistent with what the NRC requested in the October 9, 2013, letter.
1 Agencywide Documents Access and Management System (ADAMS) Accession No. ML13060A124.
2 ADAMS Accession Nos. ML13186A003 and ML13241A243, respectively.
3 ADAMS Accession No. ML13275A121.
Should you have any questions, please feel free to contact me at 301-415-1380.
Docket Nos. 50-254 and 50-265
Enclosure:
Request for Additional Information cc w/encl: Distribution via Listserv Sincerely, Blake Purnell, Project Manager Plant Licensing Branch 111-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
REQUEST FOR ADDITIONAL INFORMATION OVERALL INTEGRATED PLAN IN RESPONSE TO COMMISSION ORDER EA-12-051 MODIFYING LICENSE REQUIREMENTS FOR RELIABLE SPENT FUEL POOL INSTRUMENTATION EXELON GENERATION COMPANY, LLC QUAD CITIES NUCLEAR POWER STATION, UNITS 1 AND 2 DOCKET NOS. 50-254 AND 50-265 By letter1 dated February 28, 2013, Exelon Generation Company, LLC {the licensee) submitted the overall integrated plan (OIP) for Quad Cities Nuclear Power Station, Units 1 and 2, to the U.S. Nuclear Regulatory Commission (NRC) in response to the March 12, 2012, Commission Order modifying licenses with regard to requirements for reliable spent fuel pool (SFP) instrumentation (Order EA-12-051 ). The licensee provided supplemental information by letters 2
dated July 3 and August 28, 2013. By letter3 dated October 9, 2013, the NRC staff issued an interim staff evaluation and request for additional information (RAI) regarding the OIP. During a teleconference held on October 22, 2013, the NRC staff informed the licensee that it needs additional information regarding the SFP level instrumentation that was not identified as an RAI in the interim staff evaluation.
The licensee's OIP states that the Unit 1 and Unit 2 SFPs are interconnected by a transfer canal, and the gates to the transfer canal are normally open. The OIP also states that the primary SFP level instrument will be located in the Unit 1 SFP and the backup SFP level instrument will be located in the Unit 2 SFP. In its July 3, 2013, letter, the licensee provided a sketch that shows the bottom of the transfer canal is above the elevation the licensee defined for Level 3 (the level where fuel remains covered and actions to implement make-up water should no longer be deferred). Since the bottom of the transfer canal is above Level 3, the staff is concerned about the ability of the instrument in one SFP to measure Level 3 in the other SFP.
Therefore, the NRC staff is revising RAI #1 in the interim staff evaluation as follows:
Please provide the following:
a) Describe the impact of the installation of the gates between the SFPs and transfer canal on the reliability of the SFP level instrumentation for each SFP. Describe the compensatory measures that would be taken to ensure reliable indication in each SFP when the gates are installed.
1 Agencywide Documents Access and Management System (ADAMS) Accession No. ML13060A124.
2 ADAMS Accession Nos. ML13186A003 and ML13241A243, respectively.
3 ADAMS Accession No. ML13275A121.
Enclosure b) Describe the elevation for the bottom of the gate opening or highest elevation of the bottom of the transfer canal to demonstrate that both the primary and backup SFP level instrument channels can measure the same Level 3 elevation in both SFPs.
~Rohrer DATE 11119113 11 I 18 113 OFFICE NRR/DSSISBPB:BC LPL3-21BC LPL3-21PM NAME GCasto TTate BPurnell DATE 11 I 19 113 11 I 19 113 11 I 26 113
