ML15160A664

Oconee Nuclear Station, Units 1, 2, and 3 - 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

ML15160A664
Person / Time
Site:	Oconee
Issue date:	06/10/2015
From:	Boska J P Japan Lessons-Learned Division
To:	Batson S Duke Energy Carolinas
Boska J P, NRR/JLD, 415-2901
References
EA-12-049, EA-12-051, TAC MF0782, TAC MF0783, TAC MF0784, TAC MF0785, TAC MF0786, TAC MF0787
Download: ML15160A664 (10)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 Mr. Scott Batson Site Vice President Oconee Nuclear Station Duke Energy Carolinas, LLC 7800 Rochester Highway Seneca, SC 29672 June 10, 2015 SUBJECT: OCONEE NUCLEAR STATION, UNITS 1, 2, AND 3 -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 (TAC NOS. MF0782, MF0783, MF0784, MF0785, MF0786, AND MF0787) Dear Mr. Batson: On March 12, 2012, the U.S. Nuclear Regulatory Commission (NRG) issued Order EA-12-049, "Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Design-Basis External Events" and Order EA-12-051, "Order to Modify Licenses With Regard To Reliable Spent Fuel Pool Instrumentation," (Agencywide Documents Access and Management System (ADAMS) Accession Nos. ML 12054A736 and ML 12054A679, respectively). The orders require holders of operating reactor licenses and construction permits issued under Title 1 O of the Code of Federal Regulations Part 50 to submit for review, Overall Integrated Plans (OIPs) including descriptions of how compliance with the requirements of Attachment 2 of each order will be achieved. By letter dated February 28, 2013 (ADAMS Accession No. ML 13063A065 -not publicly available, security related information), Duke Energy Carolinas, LLC (Duke, the licensee) submitted its OIP for Oconee Nuclear Station, Units 1, 2, and 3 (Oconee) in response to Order EA-12-049. By letters dated August 29, 2013, February 28, 2014, August 27, 2014, and February 27, 2015 (ADAMS Accession Nos. ML 13246A009, ML 14064A196, ML14245A018, and ML 15063A027, respectively), the licensee submitted its first four six-month updates update to the OIP. By letter dated August 28, 2013 (ADAMS Accession No. ML 13234A503), the NRG notified all licensees and construction permit holders that the staff is conducting audits of their responses to Order EA-12-049 in accordance with NRG Office of Nuclear Reactor Regulation (NRR) Office Instruction LIC-111, "Regulatory Audits" (ADAMS Accession No. ML082900195). This audit process led to the issuance of the Oconee interim staff evaluation (ISE) dated February 10, 2014 (ADAMS Accession No. ML 13365A258) and continues with in-office and onsite portions of this audit. By letter dated February 28, 2013 (ADAMS Accession No. ML 13086A095), the licensee submitted its OIP for Oconee in response to Order EA-12-051. By letter dated June 21, 2013 (ADAMS Accession No. ML 13171 A301 ), the NRG staff sent a request for additional information (RAI) to the licensee. By letters dated July 19, 2013, August 26, 2013, February 28, 2014, August 27, 2014, and February 27, 2015 (ADAMS Accession Nos. ML13207 A413, ML 13242A009, ML 14064A 197, ML 14245A019, and ML 15063A028, respectively), the licensee S. Batson -2 -submitted its RAI responses and first four six-month updates to the OIP. The NRC staff's review led to the issuance of the Oconee ISE and RAI dated November 1, 2013 (ADAMS Accession No. ML 13298A696). By letter dated March 26, 2014 (ADAMS Accession No. ML 14083A620), the NRC notified all licensees and construction permit holders that the staff is conducting in-office and onsite audits of their responses to Order EA-12-051 in accordance with NRC NRR Office Instruction LIC-111, as discussed above. The ongoing audit process, to include the in-office and onsite portions, allows the staff to assess whether it has enough information to make a safety evaluation of the Integrated Plans. The audit allows the staff to review open and confirmatory items from the mitigation strategies ISE, RAI responses from the spent fuel pool instrumentation ISE, the licensee's integrated plans, and other audit questions. Additionally, the staff gains a better understanding of submitted information, identifies additional information necessary for the licensee to supplement its plan, and identifies any staff potential concerns. The audit's onsite portion will occur prior to declarations of compliance for the first unit at each site. This document outlines the on-site audit process that occurs after ISE issuance as licensees provide new or updated information via periodic updates, update audit information on e-portals, provide preliminary Overall Program Documents/Final Integrated Plans, and continue in-office audit communications with staff while proceeding towards compliance with the orders. The staff plans to conduct an onsite audit at Oconee in accordance with the enclosed audit plan from July 20-23, 2015. If you have any questions, please contact me at 301-415-2901 or by e-mail at John.Boska@nrc.gov. Docket Nos. 50-269, 50-270, and 50-287 Enclosure: Audit plan cc w/encl: Distribution via Listserv Sincerely, D. Boska, Senior Project Manager Management Branch Japan Lessons-Learned Division Office of Nuclear Reactor Regulation Audit Plan Oconee Nuclear Station, Units 1, 2, and 3 BACKGROUND AND AUDIT BASIS On March 12, 2012, the U.S. Nuclear Regulatory Commission (NRC) issued Order EA-12-049, "Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond Design-Basis External Events" and Order EA-12-051, "Order to Modify Licenses With Regard To Reliable Spent Fuel Pool Instrumentation," (Agencywide Documents Access and Management System (ADAMS) Accession Nos. ML 12054A736 and ML 12054A679, respectively). Order EA-12-049 directs licensees to develop, implement, and maintain guidance and strategies to maintain or restore core cooling, containment, and spent fuel pool (SFP) cooling capabilities in the event of a beyond-design-basis external event (BDBEE). Order EA-12-051 requires, in part, that all operating reactor sites have a reliable means of remotely monitoring wide-range SFP levels to support effective prioritization of event mitigation and recovery actions in the event of a BDBEE. The orders require holders of operating reactor licenses and construction permits issued under Title 10 of the Code of Federal Regulations Part 50 to submit for review their Overall Integrated Plans (OIPs) including descriptions of how compliance with the requirements of Attachment 2 of each order will be achieved. By letter dated February 28, 2013 (ADAMS Accession No. ML 13063A065-not publicly available, security related information), Duke Energy Carolinas, LLC (Duke, the licensee) submitted its OIP for Oconee Nuclear Station, Units 1, 2, and 3 (Oconee) in response to Order EA-12-049. By letters dated August 29, 2013, February 28, 2014, August 27, 2014, and February 27, 2015 (ADAMS Accession Nos. ML 13246A009, ML 14064A196, ML 14245A018, and ML 15063A027, respectively), the licensee submitted its first four six-month updates update to the OIP. By letter dated August 28, 2013 (ADAMS Accession No. ML 13234A503), the NRC notified all licensees and construction permit holders that the staff is conducting audits of their responses to Order EA-12-049 in accordance with NRC Office of Nuclear Reactor Regulation (NRR) Office Instruction LIC-111, "Regulatory Audits" (ADAMS Accession No. ML082900195). This audit process led to the issuance of the Oconee interim staff evaluation (ISE) dated February 10, 2014 (ADAMS Accession No. ML 13365A258) and continues with in-office and onsite portions of this audit. By letter dated February 28, 2013 (ADAMS Accession No. ML 13086A095), the licensee submitted its OIP for Oconee in response to Order EA-12-051. By letter dated June 21, 2013 (ADAMS Accession No. ML 13171A301), the NRC staff sent a request for additional information (RAI) to the licensee. By letters dated July 19, 2013, August 26, 2013, February 28, 2014, August 27, 2014, and February 27, 2015 (ADAMS Accession Nos. ML 13207A413, ML 13242A009, ML 14064A 197, ML 14245A019, and ML 15063A028, respectively), the licensee submitted its RAI responses and first four six-month updates to the OIP. The NRC staff's review led to the issuance of the Oconee ISE and RAI dated November 1, 2013 (ADAMS Accession No. ML 13298A696). By letter dated March 26, 2014 (ADAMS Accession No. ML 14083A620), the NRC notified all licensees and construction permit holders that the staff is conducting in-office and onsite audits of their responses to Order EA-12-051 in accordance with NRC NRR Office Instruction LIC-111, as discussed above. Enclosure

-2 -The ongoing audit process, to include the in-office and onsite portions, allows the staff to assess whether it has enough information to make a safety evaluation of the Integrated Plans. The audit allows the staff to review open and confirmatory items from the mitigation strategies ISE, RAI responses from the spent fuel pool instrumentation (SFPI) ISE, the licensee's integrated plans, and other audit questions. Additionally, the staff gains a better understanding of submitted information, identifies additional information necessary for the licensee to supplement its plan, and identifies any staff potential concerns. The audit's onsite portion will occur prior to declarations of compliance for the first unit at each site. This document outlines the onsite audit process that occurs after ISE issuance as licensees provide new or updated information via periodic updates, update audit information on e-portals, provide preliminary Overall Program Documents (OPDs)/Final Integrated Plans (FIPs), and continue in-office audit communications with staff while proceeding towards compliance with the orders. Following the licensee's declarations of order compliance, the NRC staff will evaluate the OIPs, as supplemented, the resulting site-specific OPDs/FIPs, and, as appropriate, other licensee submittals based on the requirements in the orders. For Order EA-12-049, the staff will make a safety determination regarding order compliance using the Nuclear Energy Institute (NEI) guidance document NEI 12-06, "Diverse and Flexible Coping Strategies (FLEX) Implementation Guide" issued in August 2012 (ADAMS Accession No. ML 12242A378), as endorsed by NRC Japan Lessons-Learned Project Directorate (JLD) interim staff guidance (ISG) JLD-ISG-2012-01 "Compliance with Order EA-12-049, 'Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events"' (ADAMS Accession No. ML 12229A 17 4) as providing one acceptable means of meeting the order requirements. For Order EA-12-051, the staff will make a safety determination regarding order compliance using the NEI guidance document NEI 12-02, "Industry Guidance for Compliance with NRC Order EA-12-051, 'To Modify Licenses with Regard to Reliable Spent Fuel Pool Instrumentation"' (ADAMS Accession No. ML 12240A307), as endorsed, with exceptions and clarifications, by NRC ISG JLD-ISG-2012-03 "Compliance with Order EA-12-051, 'Reliable Spent Fuel Pool Instrumentation"' (ADAMS Accession No. ML 12221A339) as providing one acceptable means of meeting the order requirements. Should the licensee propose an alternative strategy or other method deviating from the guidance, additional staff review will be required to evaluate if the alternative strategy complies with the applicable order. AUDIT SCOPE As discussed, onsite audits will be performed per NRR Office Instruction LIC-111, "Regulatory Audits," to support the development of safety evaluations. The purpose of the audits is to obtain and review information responsive to the Oconee OIPs, as supplemented, open and confirmatory items from the mitigation strategies ISE, RAI responses from the SFPI ISE, and to observe and gain a better understanding of the basis for the site's overall programs to ensure the licensee is on the correct path for compliance with the Mitigation Strategies and SFPI orders.

-3 -These may include, but are not limited to:

• Onsite review and discussion for the basis and approach for detailed analysis and calculations (Orders EA-12-049, EA-12-051);

• Walk-throughs of strategies and laydown of equipment to assess feasibility, timing, and effectiveness of a given mitigating strategy or integration of several strategies (Order EA-12-049);

• Storage, protection, access, and deployment feasibility and practicality for onsite portable equipment (Order EA-12-049);

• Evaluation of staging, access, and deployment of offsite resources to include National SAFER Response Center (NSRC) provided equipment (Order EA-12-049); and

• Review dimensions and sizing of the SFP area, placement of the SFP level instrumentation, and applicable mounting methods and design criteria (Order EA-12-051 ). NRC AUDIT TEAM Title Team Member Team Lead and Project ManaQer John Beska Technical Support Prem Sahav Technical Support Joshua Miller Technical Suooort On Yee Technical Support Khoi Nguyen Technical Support Laura Okruhlik Technical Support David Nelson (contractor) LOGISTICS The audit will be conducted onsite at Oconee on July 20-23, 2015. Entrance and exit briefings will be held with the licensee at the beginning and end of the audit, respectively, as well as daily briefings of team activities. Additional details will be addressed over the phone. A more detailed schedule is provided below. A private conference room is requested for NRC audit team use with access to audit documentation upon arrival and as needed. DELIVERABLES An audit report/summary will be issued to the licensee within 90 days from the end of the audit.

-4-INFORMATION NEEDS

• Materials/documentation provided in responses to open or confirmatory items and RAls in the ISEs;

• OPD/FIP (current version), operator procedures, FLEX Support Guidelines, operator training plans, NSRC (SAFER) Oconee Response Plan; and

• Materials/documentation for staff audit questions and/or licensee OIP identified open items as listed in Part 2 below. To provide supplemental input to the ongoing audit of documents submitted to the NRC and made available via e-portal, the onsite audit will have three components: 1) a review of the overall mitigating strategies for the site, including, if needed, walk-throughs of strategies and equipment laydown of select portions; 2) a review of material relating to open or confirmatory items and RAls from the ISEs, staff audit questions, and licensee open items; and 3) additional specific issues requested by NRC technical reviewers related to preparation of a safety evaluation. Each part is described in more detail below: Part 1 -Overall Mitigating Strategies and Program Review: During the onsite audit, please be prepared to conduct a tabletop discussion of the site's integrated mitigating strategies and SFPI compliance program. This discussion should address the individual components of the plans, as well as the integrated implementation of the strategies including a timeline. The licensee team presenting this should include necessary representatives from site management, engineering, training, and operations that were responsible for program development, and will be responsible for training and execution. Following the tabletop discussion please be prepared to conduct walk-throughs of procedures and demonstrations of equipment as deemed necessary by NRC audit team members. Include representatives from engineering and operations that will be responsible for training and execution. At this time we expect, at a minimum, to walk-through the items below. Based on the tabletop presentations and audit activities, this list may change.

-5 -WALK-THROUGH LIST: 1. Walk-through a sample of strategies that will be delineated by specific NRC technical staff audit team members 2. Walk-through of portable (FLEX) diesel generator (DG) procedures, to include power supply pathways, areas where manual actions are required, and electrical isolation 3. Walk-through of building access procedures, to include any unique access control devices 4. Strategy walk-through of transfer routes from staging and storage areas to deployment locations for both onsite and offsite equipment 5. Strategy walk-through for core cooling and reactor coolant system inventory, to include portable pumping equipment, flow paths, and water storage locations and the related reactor systems analysis and calculations 6. Walk-through of communications enhancements 7. Walk-through of SFP area, SFPI locations, and related equipment mounting areas 8. Walk-through of the procedures for load shed, with an operator who may perform this procedure during an event demonstrating the steps needed to perform the load shed. Part 2 -Specific Technical Review Items: During the visit, audit items will be addressed from the licensee's ISEs (open items (01), confirmatory items (Cl), and SFPI RAls); audit question list (AQ); licensee OIP, as supplemented, open items; and draft safety evaluation (SE) additional questions. Please provide documents or demonstrations as needed to respond to each item. Part 3 -Specific Topics for Discussion: 1. Draft of Oconee OPD/FIP 2. Reactor systems analyses 3. Training 4. Portable (FLEX) equipment maintenance and testing 5. NSRC (SAFER) Response Plan for Oconee 6. The licensee's plan for coordination with State authorities for delivery of Phase 3 FLEX equipment.

-6 -Proposed Schedule Onsite Day 1, Monday, July 20, 2015 0800 NRC team arrives at site; badging; meet with Senior Resident: Technical discussions 1000 Entrance Meeting 1200 Lunch 1300 Licensee presentation of strategies Onsite Day 2, Tuesday, July 21, 2015 0800 NRC Mitigating Strategies/SFPI walk-throughs with licensee 1200 Lunch 1300 NRC Audit Team Activities:

• Technical area break-out discussions between NRC and licensee staff in the areas of reactor systems, electrical, balance-of-plant/structures, SFPI, and others

• Review documents relating to open or confirmatory items, RAls, codes, analyses, etc.

• Plant walkdowns 1600 NRC Audit Team meeting 1630 Team lead daily debrief/next day planning with licensee Onsite Day 3, Wednesday, July 22, 2015 0800 Continue NRC Audit Team Activities 0900 NRC Mitigating Strategies/SFPI walk-throughs with licensee 1200 Lunch 1300 Continue NRC Audit Team Activities 1600 NRC Audit Team meeting 1630 Team lead daily debrief/next day planning with licensee Onsite Day 4, Thursday, July 23, 2015 0800 Continue NRC Audit Team Activities 1200 Lunch 1300 NRC Audit Team meeting 1400 NRG/Licensee pre-exit meeting 1500 NRG/Licensee exit meeting 1600 Audit closeout/departure -7 -

S. Batson -2 -submitted its RAI responses and first four six-month updates to the OIP. The NRC staff's review led to the issuance of the Oconee ISE and RAI dated November 1, 2013 (ADAMS Accession No. ML 13298A696). By letter dated March 26, 2014 (ADAMS Accession No. ML 14083A620), the NRC notified all licensees and construction permit holders that the staff is conducting in-office and onsite audits of their responses to Order EA-12-051 in accordance with NRC NRR Office Instruction LIC-111, as discussed above. The ongoing audit process, to include the in-office and onsite portions, allows the staff to assess whether it has enough information to make a safety evaluation of the Integrated Plans. The audit allows the staff to review open and confirmatory items from the mitigation strategies ISE, RAI responses from the spent fuel pool instrumentation ISE, the licensee's integrated plans, and other audit questions. Additionally, the staff gains a better understanding of submitted information, identifies additional information necessary for the licensee to supplement its plan, and identifies any staff potential concerns. The audit's onsite portion will occur prior to declarations of compliance for the first unit at each site. This document outlines the on-site audit process that occurs after ISE issuance as licensees provide new or updated information via periodic updates, update audit information on e-portals, provide preliminary Overall Program Documents/Final Integrated Plans, and continue in-office audit communications with staff while proceeding towards compliance with the orders. The staff plans to conduct an onsite audit at Oconee in accordance with the enclosed audit plan from July 20-23, 2015. If you have any questions, please contact me at 301-415-2901 or by e-mail at John.Boska@nrc.gov. Docket No. 50-269, 50-270, and 50-287 cc w/encl: Distribution via Listserv DISTRIBUTION: PUBLIC JOMB R/F RidsNrrDorllp12-1 RidsNrrPMOconee RidsNrrLASLent RidsAcrsAcnw_MailCTR ADAMS Accession No: ML 15160A664 OFFICE NRR/JLD/JOMB/PM NRR/JLD/LA NAME JBoska Slent DATE 06/09/15 06/09/15 Sincerely, IRA/ John P. Boska, Senior Project Manager Orders Management Branch Japan Lessons-Learned Division Office of Nuclear Reactor Regulation RidsRgn2MailCenter JBoska, MHalter AProffitt LGibson NRR/JLD/JOMB/BC(A) MHalter 06/10/15 *via email NRR/JLD/JOMB/PM JBoska 06/10/15 OFFICIAL AGENCY RECORD