Letter Sequence Approval |
|---|
|
Results
Other: ML13225A566, ML13254A278, ML13280A271, ML13281A205, ML13338A646, ML14069A318, ML14210A449, ML14224A477, ML14302A174, RS-15-099, Report of Full Compliance with 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-16-028, Sixth 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-16-032, Sixth 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)
|
MONTHYEARML13066A1722013-02-28028 February 2013
R. E. Ginna, Overall Integrated Plan for Reliable Spent Fuel Pool Instrumentation
Project stage: Request
ML13066A1712013-02-28028 February 2013
R.E. Gina, Overall Integrated Plan for Mitigation Strategies for Beyond-Design-Basis External Events
Project stage: Request
ML13074A0562013-03-0808 March 2013
Supplement to Overall Integrated Plan for Mitigation Strategies for Beyond-Design-Basis External Events
Project stage: Request
ML13073A1552013-03-0808 March 2013
Supplement to Overall Integrated Plan for Reliable Spent Fuel Pool Instrumentation
Project stage: Supplement
ML13078A0102013-03-12012 March 2013
Flood Hazard Reevaluation Report
Project stage: Request
ML13164A3932013-06-19019 June 2013
Request for Additional Information Regarding Overall Integrated Plan for Reliable Spent Fuel Pool Instrumentation, Order EA-12-051
Project stage: RAI
ML13190A0172013-07-0303 July 2013
Response to Request for Additional Information Regarding Overall Integrated Plan for Reliable Spent Fuel Pool Instrumentation (Order EA-12-051)
Project stage: Response to RAI
05000318/LER-2013-003, Regarding Reactor Trip Due to Intermittent Failure in the Turbine Control System2013-07-0303 July 2013
Regarding Reactor Trip Due to Intermittent Failure in the Turbine Control System
Project stage: Request
ML13254A2782013-08-27027 August 2013
Clavert Cliffs, Units 1 & 2, R.E. Ginna, Nine Mile Point, Units 1 & 2, Six-Month Status Report in Response to 03/12/2012 Commission Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis Exter
Project stage: Other
ML13254A1512013-09-0606 September 2013
Supplement to Flood Hazard Reevaluation Report Regulatory Commitments
Project stage: Request
ML13267A2852013-09-25025 September 2013
Interim Staff Evaluation and Request for Additional Information - Calvert Cliffs Nuclear Plant, Unites 1 and 2 Regarding Overall Integrated Plan for Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051)
Project stage: RAI
ML13280A2712013-10-0303 October 2013
Notification of Completion of Firearms Background Checks in Accordance with NRC Order EA-13-092
Project stage: Other
ML13309A6582013-10-0707 October 2013
Constellation Energy Quality Assurance Topical Report, Rev. 7
Project stage: Request
ML13281A2052013-11-15015 November 2013
Overall Integrated Plan for Reliable Spent Fuel Pool Instrumentation
Project stage: Other
ML13338A6462013-12-0909 December 2013
Mega-Tech Services, LLC Technical Evaluation Report Regarding the Overall Integrated Plan for Calvert Cliffs Nuclear Power Plant, Units 1 and 2, TAC Nos.: MF1142 and MF1143
Project stage: Other
ML13225A5662013-12-17017 December 2013
Interim Staff Evaluation Relating to Overall Integrated Plan in Response to Order EA-12-049(Mitigation Strategies)
Project stage: Other
ML14069A3182014-02-27027 February 2014
February 2014 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
ML14210A4492014-08-0505 August 2014
Plan for the Onsite Audit Regarding Implementation of Mitigating Strategies and Reliable Spent Fuel Instrumentation Related to Orders EA-12-049 and EA-12-051
Project stage: Other
ML14224A4772014-08-15015 August 2014
Correction Letter Regarding 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-15-078, Calvert Cliff, Unit 2 - Request for Schedule Relaxation from Nuclear Regulatory Commission Order EA-12-049, Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events2015-02-20020 February 2015
Calvert Cliff, Unit 2 - Request for Schedule Relaxation from Nuclear Regulatory Commission Order EA-12-049, Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events
Project stage: Request
ML14302A1742015-02-20020 February 2015
Report for the 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
ML15054A3342015-03-0404 March 2015
Relaxation of the Scheduler Requirements for Order EA-12-049 Issuance of Order to Modify Licenses with Regard to Requirements for Mitigation Strategies for Beyond Design Basis External Events
Project stage: Approval
RS-15-099, Report of Full Compliance with 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)2015-07-0202 July 2015
Report of Full Compliance with 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-16-028, Sixth 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)2016-02-26026 February 2016
Sixth 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-16-032, Sixth 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)2016-02-26026 February 2016
Sixth 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
2013-07-03
[Table View] |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 Mr. George H. Gellrich Site Vice President Exelon Generation Company, LLC Calvert Cliffs Nuclear Power Plant 1650 Calvert Cliffs Parkway Lusby, MD 20657-4702 March 4, 2015
SUBJECT:
CALVERT CLIFFS NUCLEAR POWER PLANT, UNIT 2 - RELAXATION OF THE SCHEDULE REQUIREMENTS FOR ORDER EA-12-049 "ISSUANCE OF ORDER TO MODIFY LICENSES WITH REGARD TO REQUIREMENTS FOR MITIGATION STRATEGIES FOR BEYOND-DESIGN-BASIS EXTERNAL EVENTS" (TAC NO. MF1143)
Dear Mr. Gellrich:
By letter dated March 12, 2012 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML12054A735), the U.S. Nuclear Regulatory Commission (NRC) ordered Exelon Generation, LLC (Exelon, the licensee), to take certain actions at Calvert Cliffs Nuclear Power Plant, Units 1 and 2 (Calvert Cliffs), associated with the Fukushima Near-Term Task Force Recommendations. Order EA-12-049 directed that actions be taken by licensees to develop and implement strategies to maintain or restore core cooling, containment, and spent fuel pool cooling capabilities during beyond-design-basis external events.
Section IV of the order states that licensees proposing to deviate from requirements contained in NRC Order EA-12-049 may request that the Director, Office of Nuclear Reactor Regulation, relax or rescind certain conditions. By letter dated February 20, 2015 (ADAMS Accession No. ML15056A695), Exelon informed the NRC of their request for an extension to no later than 60 days following the restart from the spring 2015 refueling outage to carry out the order requirement that licensees must provide reasonable protection from external events for the associated mitigation equipment. The licensee stated that they are constructing a FLEX Storage Robust Building (FSRB), which will store the FLEX equipment. However, following the first concrete wall pour, the licensee discovered that there were readily visible voids in the concrete. Ultrasonic Pulse Velocity testing verified that there were internal flaws in the poured concrete. Since flaws were discovered in the poured concrete, completion of the FSRB has been delayed.
To allow the licensee to complete repair activities and construction of the FSRB, the licensee requests to move the Calvert Cliffs, Unit 2 order implementation date from the completion of the spring 2015 refueling outage (i.e., restart from the CC2R21 refueling outage, which is scheduled in March 2015) to no later than 60 days following the restart from the spring 2015 refueling outage.
In light of the facts presented in the licensee's February 20, 2015, letter, the NRC staff has determined that the licensee has presented good cause for relaxation of the order implementation date. The construction of the FSRB, which is designed to provide protection from seismic, wind, tornado and tornado missiles, flooding, and extreme temperature external events, is a significant endeavor and is necessary at Calvert Cliffs to meet the requirement of the order to protect equipment that is needed to implement mitigating strategies. Due to the unforeseen flaws, additional time is needed to correctly repair the walls, retest the affected areas of the concrete, and complete construction of the FSRB. The NRC staff also considered that, following the accident at Fukushima Dai-ichi, the NRC concluded that a sequence of events such as the Fukushima Dai-ichi accident is unlikely to occur in the United States based on the current regulatory requirements and existing plant capabilities. Given the plant-specific circumstances at Calvert Cliffs, and that completion by the proposed date is before December 2016, the implementation date established by the order, the NRC staff approves the requested relaxation.
Accordingly, based upon the authority granted to the Director, Office of Nuclear Reactor Regulation, the requirement of the order for full order implementation for Calvert Cliffs, Unit 2 is relaxed until no later than 60 days following the restart from the spring 2015 refueling outage (i.e., May 2015) to allow the licensee sufficient time to complete construction of the FSRB.
If you have any questions, please contact Jason Paige, at 301-415-5888.
William M. Dean, Director Office of Nuclear Reactor Regulation Docket No. 50-318 cc: Listserv
ML15054A334 OFFICE NRR/JLD/JOMB/PM NRR/JLD /LA NAME JPaige Slent DATE 02/24/15 02/24/15 OFFICE OE*
OGG NAME RFretz CHair DATE 02/26/15 02/25/15 Sincerely, IRA/
William M. Dean, Director Office of Nuclear Reactor Regulation RidsNrrLASLent Resource RidsOgcMailCenter Resource RidsOeMailCenter Resource RidsNrrMailCenter Resource RidsRgn1 MailCenter Resource
- via email NRR/DORL/LPL 1-1/PM NRR/JLD/JOMB/BC (A)
NMorgan MHalter 02/24/15 02/26/15 NRR/JLD/D NRR/D JDavis BDean 02/25/15 03/04/15
