ML12248A331

Mid-Cycle Assessment Letter for Byron Station Units 1 and 2

ML12248A331
Person / Time
Site:	Byron
Issue date:	09/04/2012
From:	Eric Duncan Region 3 Branch 3
To:	Pacilio M Exelon Generation Co, Exelon Nuclear
References
Download: ML12248A331 (6)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION REGION III 2443 WARRENVILLE ROAD, SUITE 210 LISLE, IL 60532-4352 September 4, 2012 Mr. Michael J. Pacilio Senior Vice President, Exelon Generation Company, LLC President and Chief Nuclear Officer (CNO), Exelon Nuclear 4300 Winfield Road Warrenville IL 60555

SUBJECT:

MID-CYCLE ASSESSMENT LETTER FOR BYRON STATION, UNITS 1 AND 2

Dear Mr. Pacilio:

On August 8, 2012, the Nuclear Regulatory Commission (NRC) completed its mid-cycle performance review of Byron Station, Units 1 and 2. The NRC reviewed the most recent quarterly performance indicators (PIs) in addition to inspection results and enforcement actions from July 1, 2011, through June 30, 2012. This letter informs you of the NRCs assessment of your facility during this period and its plans for future inspections at your facility. This assessment reflects the integration of the Security Cornerstone into the Inspection Manual Chapter 0305, Operating Reactor Assessment Program.

The NRC determined that the performance at Byron Station Unit 1 during the most recent quarter, as well as the previous three quarters of the assessment period, was within the Licensee Response column of the NRCs Reactor Oversight Process (ROP) Action Matrix, because all inspection findings had very low (i.e., Green) safety significance, and all PIs indicated that your performance was within the nominal, expected range (i.e., Green).

The NRC determined the performance at Byron Station Unit 2 during the most recent quarter was within the Licensee Response column of the NRCs ROP Action Matrix because all inspection findings had very low (i.e., Green) safety significance, and all PIs indicated that your performance was within the nominal, expected range (i.e., Green). Plant performance for the first two quarters of the assessment period was within the Regulatory Response column of the NRCs ROP Action Matrix based on one inspection finding being classified as having low-to-moderate safety significance (i.e., White) and all PIs indicated that your performance was within the nominal, expected range (i.e., Green). The White finding involved the failure to ensure that a flange connection on the upper lube oil cooler of the 2A diesel generator was correctly torqued following maintenance. This White finding was closed on August 26, 2011, as documented in our letter to you dated October 4, 2011 [ML112770516]. Unit 2 returned to the Licensee Response column of the ROP Action Matrix in the first quarter of 2012.

M. Pacilio Therefore, the NRC plans to conduct ROP baseline inspections at your facility. We also plan to conduct several special and infrequently performed inspections related to the operation of the Independent Spent Fuel Storage Installation, Temporary Instructions (TIs) and a follow-up inspection. These inspections include Inspection Procedure (IP) 60855.1, Operation of an Independent Spent Fuel Storage Installation at Operating Plants, TI-182, Review of the Implementation of an Industry Initiative to Control the Degradation of Underground Piping and Tanks, TI-187, Inspection of Near-Term Task Force Recommendation 2.3 Flooding Walkdowns, and TI-188, Inspection of Near-Term Task Force Recommendation 2.3 Seismic Walkdowns. In addition, a follow-up inspection will be conducted using IP 92723, Follow Up Inspection for Three or More Severity Level IV Traditional Enforcement Violations in the Same Area in a 12-Month Period, to evaluate your corrective actions and extent of condition review related to a Steam Generator Margin-to-Overfill Compliance Backfit [ML110190808] that was issued.

The enclosed inspection plan lists the inspections scheduled through December 31, 2013.

Routine inspections performed by resident inspectors are not included in the inspection plan.

The inspections listed during the last 9 months of the inspection plan are tentative and may be revised at the end-of-cycle performance review. The NRC provides the inspection plan to allow for the resolution of any scheduling conflicts and personnel availability issues. The NRC will contact you as soon as possible to discuss changes to the inspection plan should circumstances warrant any changes. This inspection plan does not include security-related inspections, which will be sent via separate, non-publicly available correspondence.

In accordance with 10 CFR 2.390 of the NRC=s ARules of Practice,@ a copy of this letter and its enclosure will be made available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records (PARS) component of NRC's document system (ADAMS). ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).

Please contact me at (630) 829-9620 with any questions you may have regarding this letter or the inspection plan.

Sincerely,

/RA/

Eric R. Duncan, Chief Branch 3 Division of Reactor Projects Docket Nos. 50-454 and 50-455 License Nos. NPF-37 and NPF-66

Enclosure:

Byron Station Inspection/Activity Plan cc w/encl: Distribution via ListServ TM

M. Pacilio Therefore, the NRC plans to conduct ROP baseline inspections at your facility. We also plan to conduct several special and infrequently performed inspections related to the operation of the Independent Spent Fuel Storage Installation, Temporary Instructions (TIs) and a follow-up inspection. These inspections include Inspection Procedure (IP) 60855.1, Operation of an Independent Spent Fuel Storage Installation at Operating Plants, TI-182, Review of the Implementation of an Industry Initiative to Control the Degradation of Underground Piping and Tanks, TI-187, Inspection of Near-Term Task Force Recommendation 2.3 Flooding Walkdowns, and TI-188, Inspection of Near-Term Task Force Recommendation 2.3 Seismic Walkdowns. In addition, a follow-up inspection will be conducted using IP 92723, Follow Up Inspection for Three or More Severity Level IV Traditional Enforcement Violations in the Same Area in a 12-Month Period, to evaluate your corrective actions and extent of condition review related to a Steam Generator Margin-to-Overfill Compliance Backfit [ML110190808] that was issued.

The enclosed inspection plan lists the inspections scheduled through December 31, 2013.

Routine inspections performed by resident inspectors are not included in the inspection plan.

The inspections listed during the last 9 months of the inspection plan are tentative and may be revised at the end-of-cycle performance review. The NRC provides the inspection plan to allow for the resolution of any scheduling conflicts and personnel availability issues. The NRC will contact you as soon as possible to discuss changes to the inspection plan should circumstances warrant any changes. This inspection plan does not include security-related inspections, which will be sent via separate, non-publicly available correspondence.

In accordance with 10 CFR 2.390 of the NRC=s ARules of Practice,@ a copy of this letter and its enclosure will be made available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records (PARS) component of NRC's document system (ADAMS). ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).

Please contact me at (630) 829-9620 with any questions you may have regarding this letter or the inspection plan.

Sincerely,

/RA/

Eric R. Duncan, Chief Branch 3 Division of Reactor Projects Docket Nos. 50-454 and 50-455 License Nos. NPF-37 and NPF-66

Enclosure:

Byron Station Inspection/Activity Plan cc w/encl: Distribution via ListServ TM DOCUMENT NAME: G:\DRPIII\1-Secy\1-Work In Progress\2012 MOC Letters\Byron 2012 MOC Letter.docx Publicly Available Non-Publicly Available Sensitive Non-Sensitive To receive a copy of this document, indicate in the concurrence box "C" = Copy without attach/encl "E" = Copy with attach/encl "N" = No copy OFFICE RIII RIII NAME RNg:dtp EDuncan DATE 08/20/12 08/21/12 OFFICIAL RECORD COPY

Letter to M. Pacilio from E. Duncan dated September 4, 2012.

SUBJECT:

MID-CYCLE ASSESSMENT LETTER FOR BYRON STATION, UNITS 1 AND 2 DISTRIBUTION:

Silas Kennedy RidsNrrDorlLpl3-2 Resource RidsNrrPMByron Resource RidsNrrDirsIrib Resource Chuck Casto Cynthia Pederson Steven Orth Jared Heck Allan Barker Christine Lipa Carole Ariano Linda Linn DRPIII DRSIII Patricia Buckley Tammy Tomczak ROPassessment.Resource@nrc.gov

Page 1 of 2 Byron Inspection / Activity Plan 09/01/2012 - 12/31/2013 Planned Dates No. of Staff Start End Inspection Activity Title on Site FOLLOWUP - MARGIN TO OVERFILL BACKFIT CA/EOC RVW 1 11/01/2012 12/20/2012 IP 92723 Follow Up Inspection for Three or More Severity Level IV Traditional Enforcement Violations in the S TI-187 - TI-187 FLOODING WALKDOWN 2 07/01/2012 12/31/2012 IP 2515/187 Inspection of Near-Term Task Force Recommendation 2.3 Flooding Walkdowns TI-188 - TI-188 SEISMIC WALKDOWN 2 07/01/2012 12/31/2012 IP 2515/187 Inspection of Near-Term Task Force Recommendation 2.3 Flooding Walkdowns BI ISI - INSERVICE INSPECTION UNIT 1 2 09/10/2012 10/05/2012 IP 7111108P Inservice Inspection Activities - PWR BI RP - RADIATION PROTECTION BASELINE INSPECTION 1 09/17/2012 09/21/2012 IP 71124.01 Radiological Hazard Assessment and Exposure Controls 09/17/2012 09/21/2012 IP 71124.02 Occupational ALARA Planning and Controls BI OLRQ - BIENNIAL REQUAL PROGRAM INSPECTION 2 10/29/2012 11/02/2012 IP 7111111B Licensed Operator Requalification Program BI FIRE - FIRE PROTECTION INSPECTION & BAG TRIP 3 01/14/2013 02/15/2013 IP 7111105T Fire Protection [Triennial]

BI RP - RADIATION PROTECTION BASELINE INSPECTION 1 12/10/2012 12/14/2012 IP 71124.08 Radioactive Solid Waste Processing and Radioactive Material Handling, Storage, and Transportation BI RP - RADIATION PROTECTION BASELINE INSPECTION 1 02/25/2013 03/01/2013 IP 71124.06 Radioactive Gaseous and Liquid Effluent Treatment OL PREP - BYRON INIT PREP 04/2013 3 04/01/2013 04/05/2013 W90282 OL - INITIAL EXAM - 2013 APR-MAY - BYRON BI RP - RADIATION PROTECTION BASELINE INSPECTION 1 04/08/2013 04/12/2013 IP 71124.01 Radiological Hazard Assessment and Exposure Controls 04/08/2013 04/12/2013 IP 71124.02 Occupational ALARA Planning and Controls ISI INSP - ISI BASELINE INSPECTION 2 04/08/2013 04/26/2013 IP 7111108P Inservice Inspection Activities - PWR OL EXAM - BYRON INIT EXAM - 04/2013 3 04/29/2013 05/10/2013 W90282 OL - INITIAL EXAM - 2013 APR-MAY - BYRON BI RP - RADIATION PROTECTION BASELINE INSPECTION 1 05/13/2013 05/17/2013 IP 71124.03 In-Plant Airborne Radioactivity Control and Mitigation 05/13/2013 05/17/2013 IP 71124.04 Occupational Dose Assessment BI PI&R - BIENNIAL PI&R INSPECTION 4 09/09/2013 09/27/2013 IP 71152B Problem Identification and Resolution

Page 2 of 2 Byron Inspection / Activity Plan 09/01/2012 - 12/31/2013 Planned Dates No. of Staff Start End Inspection Activity Title on Site ISFSI - ISFISI INSPECTION 1 09/01/2013 10/31/2013 IP 60856.1 Review of 10 CFR 72.212(b) Evaluations at Operating Plants TI 182 - TI 182 BURIED PIPING PHASE 2 2 08/12/2013 08/16/2013 IP 2515/182 Review of the Implementation of the Industry Initiative to Control Degradation of Underground Piping BI RP - RADIATION PROTECTION BASELINE INSPECTION 1 08/19/2013 08/23/2013 IP 71124.01 Radiological Hazard Assessment and Exposure Controls 08/19/2013 08/23/2013 IP 71151-BI01 Reactor Coolant System Activity 08/19/2013 08/23/2013 IP 71151-OR01 Occupational Exposure Control Effectiveness 08/19/2013 08/23/2013 IP 71151-PR01 RETS/ODCM Radiological Effluent BI EPX - EP EXERCISE INSPECTION / PI VERIFICATION 2 11/18/2013 11/22/2013 IP 7111401 Exercise Evaluation 11/18/2013 11/22/2013 IP 71151 Performance Indicator Verification BI HS - TRIENNIAL HEAT SINK INSPECTION 2 11/04/2013 11/08/2013 IP 7111107T Heat Sink Performance BI RP - RADIATION PROTECTION BASELINE INSPECTION 1 11/18/2013 11/22/2013 IP 71124.05 Radiation Monitoring Instrumentation BI OLRQ - REQUALIFICATION PROGRAM INSPECTION 1 12/16/2013 12/20/2013 IP 7111111A Licensed Operator Requalification Program - Annual Review