ML16070A039
| ML16070A039 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 03/10/2016 |
| From: | Kanavos M Exelon Generation Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| BYRON 207 6-0030 | |
| Download: ML16070A039 (2) | |
Text
Byron Generating Station 4450 North German Church Road Exe[on Generation March 70, 2076 LTR:
BYRON 207 6-0030 File:
1.10.0107 (1D.101, 5A.106)
U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001 Byron Station, Units 1 and 2 Renewed Facility Operating License Nos. NPF-37 and NPF-66 NRC Docket Nos. STN 50-454 and STN 50-455
Subject:
2015 Regulatory Commitment Change Summary Report The purpose of this report is to provide the Exelon Generation Company, LLC (EGC)
Regulatory Commitment Change Summary Report for Byron Station for commitment changes processed during the period from January 1, 2015 through December 31, 2015. Commitment changes are processed in accordance with Nuclear Energy Institutes (N El) 99-04, Revision 0, Guidance for Managing NRC Commitment Changes, dated July 1999 and associated implementing procedures. For the period from January 1, 2015 through December 37, 2015, there was one commitment change processed in accordance with NEI 99-04, Revision 0 and associated implementing procedures requiring NRC notification.
If you have any questions concerning this report, please contact Douglas Spitzer, Regulatory Assurance Manager at (815) 406-2800.
Respectfully, 7/
jz Mark E. Kanavos Site Vice President Byron Generating Station MEK/LZ/sg Attachment
ATTACHMENT BYRON STATION REGULATORY COMMITMENT CHANGE
SUMMARY
REPORT FOR 2075 OriQinal Document and Commitment:
NRC Generic Letter 89-13, Service Water System Problems Affecting Safety-Related Equipment, and CornEd letter dated January 29, 1990 from M.H. Richter to NRC (AR 10651).
Generic Letter 89-1 3 item I requires: Implementation and maintenance of an ongoing program of Surveillance and Control Techniques to significantly reduce the incidence of flow blockage problems as a result of biofouling.
In response to this requirement, Byron Station, via above mentioned letter committed to a surveillance technique A which states in part
...quarterly scheduled SX Makeup Pump performance tests will identify significant fouling of piping between the RSH and the SX Cooling Tower. To enhance OBVS 0.5-3.SX.1-1 a step will be added to record the pump discharge value throttle position required to achieve proper pump differential pressure and flow rate.
Commitment Change 09-008 and Exelon Generation Company letter dated March 1, 2010 from Daniel J. Enrightto NRC revised the commitment to: Generic Letter 89-13 item I
requires: Implementation and maintenance of an ongoing program of Surveillance and Control Techniques to significantly reduce the incidence of flow blockage problems as a result of biofouling. In response to this requirement, Byron Station, via corporate response committed to a surveillance technique A which states in part...quarterly scheduled SX Makeup Pump performance tests will identify significant fouling of piping between the RSH and the SX Cooling Tower. Currently the OSXO29NB are operated at locked full open and is documented in procedures, OBVSR 5.5.8.SX.5-1/NB and OBOSR 5.5.8.SX.5-1/2C and an evaluation of a potential degraded condition is completed by trending pump differential pressure and flow rate for fouling or pump degradation.
Subject of ChanQe:
Generic Letter 89-7 3 item I requires: Implementation and maintenance of an ongoing program of Surveillance and Control Techniques to significantly reduce the incidence of flow blockage problems as a result of biofouling.
In response to this requirement, Byron Station, via corporate response committed to a surveillance technique A which states in part...quarterly scheduled SX Makeup Pump performance tests will identify significant fouling of piping between the RSH and the SX Cooling Tower. A step has been added to, OBOSR 5.5.8.SX.5-112C, Unit Zero Comprehensive Inservice Testing (1ST) Requirements for Essential Service Water Makeup Pump ONOB to record the pump discharge value throttle position required to achieve proper pump differential pressure and flow rate.
Justifications for Change:
This changes the way in which this commitment is implemented back to the way it was originally implemented.
Status:
The commitment was changed under Commitment Change Number 75-011.
Byron Generating Station 4450 North German Church Road Exe[on Generation March 70, 2076 LTR:
BYRON 207 6-0030 File:
1.10.0107 (1D.101, 5A.106)
U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001 Byron Station, Units 1 and 2 Renewed Facility Operating License Nos. NPF-37 and NPF-66 NRC Docket Nos. STN 50-454 and STN 50-455
Subject:
2015 Regulatory Commitment Change Summary Report The purpose of this report is to provide the Exelon Generation Company, LLC (EGC)
Regulatory Commitment Change Summary Report for Byron Station for commitment changes processed during the period from January 1, 2015 through December 31, 2015. Commitment changes are processed in accordance with Nuclear Energy Institutes (N El) 99-04, Revision 0, Guidance for Managing NRC Commitment Changes, dated July 1999 and associated implementing procedures. For the period from January 1, 2015 through December 37, 2015, there was one commitment change processed in accordance with NEI 99-04, Revision 0 and associated implementing procedures requiring NRC notification.
If you have any questions concerning this report, please contact Douglas Spitzer, Regulatory Assurance Manager at (815) 406-2800.
Respectfully, 7/
jz Mark E. Kanavos Site Vice President Byron Generating Station MEK/LZ/sg Attachment
ATTACHMENT BYRON STATION REGULATORY COMMITMENT CHANGE
SUMMARY
REPORT FOR 2075 OriQinal Document and Commitment:
NRC Generic Letter 89-13, Service Water System Problems Affecting Safety-Related Equipment, and CornEd letter dated January 29, 1990 from M.H. Richter to NRC (AR 10651).
Generic Letter 89-1 3 item I requires: Implementation and maintenance of an ongoing program of Surveillance and Control Techniques to significantly reduce the incidence of flow blockage problems as a result of biofouling.
In response to this requirement, Byron Station, via above mentioned letter committed to a surveillance technique A which states in part
...quarterly scheduled SX Makeup Pump performance tests will identify significant fouling of piping between the RSH and the SX Cooling Tower. To enhance OBVS 0.5-3.SX.1-1 a step will be added to record the pump discharge value throttle position required to achieve proper pump differential pressure and flow rate.
Commitment Change 09-008 and Exelon Generation Company letter dated March 1, 2010 from Daniel J. Enrightto NRC revised the commitment to: Generic Letter 89-13 item I
requires: Implementation and maintenance of an ongoing program of Surveillance and Control Techniques to significantly reduce the incidence of flow blockage problems as a result of biofouling. In response to this requirement, Byron Station, via corporate response committed to a surveillance technique A which states in part...quarterly scheduled SX Makeup Pump performance tests will identify significant fouling of piping between the RSH and the SX Cooling Tower. Currently the OSXO29NB are operated at locked full open and is documented in procedures, OBVSR 5.5.8.SX.5-1/NB and OBOSR 5.5.8.SX.5-1/2C and an evaluation of a potential degraded condition is completed by trending pump differential pressure and flow rate for fouling or pump degradation.
Subject of ChanQe:
Generic Letter 89-7 3 item I requires: Implementation and maintenance of an ongoing program of Surveillance and Control Techniques to significantly reduce the incidence of flow blockage problems as a result of biofouling.
In response to this requirement, Byron Station, via corporate response committed to a surveillance technique A which states in part...quarterly scheduled SX Makeup Pump performance tests will identify significant fouling of piping between the RSH and the SX Cooling Tower. A step has been added to, OBOSR 5.5.8.SX.5-112C, Unit Zero Comprehensive Inservice Testing (1ST) Requirements for Essential Service Water Makeup Pump ONOB to record the pump discharge value throttle position required to achieve proper pump differential pressure and flow rate.
Justifications for Change:
This changes the way in which this commitment is implemented back to the way it was originally implemented.
Status:
The commitment was changed under Commitment Change Number 75-011.