ML081340703
| ML081340703 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 05/13/2008 |
| From: | Stephanie West Division of Reactor Safety III |
| To: | Pardee C Exelon Generation Co |
| References | |
| EA-08-046, IR-07-009 | |
| Download: ML081340703 (4) | |
Text
May 13, 2008 EA-08-046 Mr. Charles G. Pardee Chief Nuclear Officer and Senior Vice President Exelon Generation Company, LLC 4300 Winfield Road Warrenville IL 60555
SUBJECT:
NRC ACKNOWLEDGMENT OF BYRON STATION RESPONSE TO FINAL SIGNIFICANCE DETERMINATION LETTER DATED APRIL 1, 2008, FOR A WHITE FINDING AND NOTICE OF VIOLATION NRC INSPECTION REPORT 05000454/2007009(DRS); 05000455/2007009(DRS)
Dear Mr. Pardee:
The Nuclear Regulatory Commission (NRC) acknowledges the receipt of your letter dated May 1, 2008, in response to our letter dated April 1, 2008, transmitting a Notice of Violation associated with Inspection Report Nos. 05000454/2007009(DRS); 05000455/2007009(DRS).
This report summarized the results of the NRCs Special Inspection at the Byron Station and documented a White finding associated with the degradation of the essential service water (SX) system riser piping at the cooling tower basin.
In your letter, you acknowledged the violations regarding: (1) the failure to take prompt corrective actions for conditions adverse to quality (degraded SX riser pipes); and (2) failure to adequately verify the design of the degraded SX piping. You indicated that the cause of the violations was inadequate procedural guidance related to trending, tracking, identification threshold, and follow-up action for safety-related external pipe corrosion. Additionally, you identified that individuals failed to accurately characterize the level of degradation due to a lack of sensitivity to allowable design margins on the piping. Your letter also provided information about enhancements to procedures and programs, and personnel training that either have been made or will be taken to preclude the reoccurrence of the violations.
The NRC is currently reviewing your response. After our review is completed, we will use the response to determine the scope of the Supplemental Inspection 95001, Inspection for One or Two White Inputs in a Strategic Performance Area, as described in our Assessment Follow-up Letter dated May 6, 2008. Please notify Richard Skokowski at 630-829-9620 once you have completed your root cause analysis and when you are ready for our supplemental inspection to occur.
If you have any questions regarding this letter, please contact Mr. David E. Hills, Chief, Engineering Branch 1 at (630) 829-9733.
C. Pardee In accordance with 10 CFR 2.390 of the NRC's "Rules of Practice," a copy of this letter will be 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),
accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).
Sincerely,
/RA/
Steven West, Director Division of Reactor Safety Docket No. 50-454; 50-455 License No. NPF-37; NPF-66 cc:
Site Vice President - Byron Station Plant Manager - Byron Station Regulatory Assurance Manager - Byron Station Chief Operating Officer and Senior Vice President Senior Vice President - Midwest Operations Senior Vice President - Operations Support Vice President - Licensing and Regulatory Affairs Director - Licensing and Regulatory Affairs Manager Licensing - Braidwood, Byron, and LaSalle Associate General Counsel Document Control Desk - Licensing Assistant Attorney General Illinois Emergency Management Agency J. Klinger, State Liaison Officer, State of Illinois P. Schmidt, State Liaison Officer, State of Wisconsin Chairman, Illinois Commerce Commission B. Quigley, Byron Station
C. Pardee In accordance with 10 CFR 2.390 of the NRC's "Rules of Practice," a copy of this letter will be 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),
accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).
Sincerely,
/RA/
Steven West, Director Division of Reactor Safety Docket No. 50-454; 50-455 License No. NPF-37; NPF-66 cc:
Site Vice President - Byron Station Plant Manager - Byron Station Regulatory Assurance Manager - Byron Station Chief Operating Officer and Senior Vice President Senior Vice President - Midwest Operations Senior Vice President - Operations Support Vice President - Licensing and Regulatory Affairs Director - Licensing and Regulatory Affairs Manager Licensing - Braidwood, Byron, and LaSalle Associate General Counsel Document Control Desk - Licensing Assistant Attorney General Illinois Emergency Management Agency J. Klinger, State Liaison Officer, State of Illinois P. Schmidt, State Liaison Officer, State of Wisconsin Chairman, Illinois Commerce Commission B. Quigley, Byron Station DOCUMENT NAME: G:\\DRS\\Work in Progress\\Ltr. BYRON Acknowledgment Letter.doc
- Publicly Available Non-Publicly Available Sensitive
- Non-Sensitive To receive a copy of this document, indicate in the box
- "C" = Copy w/o att/encl "E" = Copy w/att/encl "N" = No copy OFFICE RIII RIII RIII OE RIII NAME MHolmberg RSkokowski DHills PPelke for KOBrien SWest DATE 05/07/08 05/08/08 05/08/08 05/08/08 05/13/08 OFFICIAL RECORD COPY
Letter to Mr. Charles G. Pardee from Mr. David E. Hills, dated May 13, 2008.
SUBJECT:
ACKNOWLEDGMENT OF RESPONSE TO FINAL SIGNIFICANCE DETERMINATION LETTER DATED APRIL 1, 2008, FOR A WHITE FINDING AND NOTICE OF VIOLATION (NRC INSPECTION REPORT 05000454/2007009(DRS) AND 05000455/2007009(DRS),
BYRON STATION DISTRIBUTION:
RAG1 TEB MMT RidsNrrDirsIrib MAS KGO JKH3 RML2 SRI Byron CAA1 DRPIII DRSIII PLB1 TXN PRP OEMAIL ROPreports@nrc.gov