ML041060410
| ML041060410 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Quad Cities  |
| Issue date: | 04/20/2004 |
| From: | Reynolds S Division Reactor Projects III |
| To: | Crane C Exelon Generation Co, Exelon Nuclear |
| References | |
| Download: ML041060410 (4) | |
Text
April 20, 2004 Mr. Christopher M. Crane President and Chief Nuclear Officer Exelon Nuclear Exelon Generation Company, LLC Quad Cities Nuclear Power Station and Dresden Nuclear Power Station 4300 Winfield Road Warrenville, IL 60555
SUBJECT:
COMMITMENTS AND INFORMATION RELATED TO THE EXTENDED POWER UPRATE AT DRESDEN AND QUAD CITIES NUCLEAR POWER STATIONS
Dear Mr. Crane:
This refers to Exelon Generation Company, LLC (EGC), Letter RS-04-054, dated April 2, 2004, which provides your commitments regarding operation of the Quad Cites Nuclear Power Station Units 1 and 2 at extended power uprate (EPU) conditions. Your commitments included receiving NRC approval prior to continuous operation of Quad Cities Units 1 or 2 above pre-EPU power level (2511 MWt). Attachment 1 to your letter provided a plan for conducting testing and analysis of flow effects at Quad Cities Units 1 and 2. Additionally, Attachment 2 provided the basis for continued operation of Dresden Nuclear Power Station Units 2 and 3 at EPU conditions.
The NRC staff has conducted a preliminary review of the information in your April 2 letter regarding the commitments related to resumption of long-term EPU operation of the Quad Cities units and the basis for continued long-term EPU operation of the Dresden units.
Although we have no problem with your proceeding as described in your April 2 letter, the staff has identified concerns with your plans to justify long-term EPU operation of the Quad Cities units and your summary basis for continued long-term EPU operation of the Dresden units. For example, your April 2 letter did not indicate that you will identify the loads (forcing function) that are causing the steam dryer damage during EPU operation at the Quad Cities units. Further, the test plan in Attachment 1 to your April 2 letter for obtaining EPU data at the Quad Cities units did not make clear that sufficient types of data will be collected for adequate assessment of the dynamic loading on the steam dryer, and other plant components, including possible fluid structure interactions. Finally, the summary of your basis for continued operation of the Dresden units at EPU conditions in Attachment 2 to your April 2 letter did not provide a quantitative technical assessment of the potential loadings and resulting stresses that could cause failure of the Dresden steam dryers, or other plant components. We look forward to discussing these concerns with your staff shortly.
If you have any questions regarding this matter, please contact Mark Ring of my staff at (630) 829-9703.
C. Crane In accordance with 10 CFR 2.390 of the NRCs Rules of Practice, a copy of this letter, and any responses you provide will be made available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records System (PARS) component of NRCs 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).
Sincerely,
/RA by Patrick L. Hiland Acting for/
Steven A. Reynolds, Acting Director Division of Reactor Projects Docket Nos. 50-237; 50-249; 50-254; 50-265 License Nos. DPR-19; DRP-25; DPR-29; DPR-30 cc:
Site Vice President - Quad Cities Nuclear Power Station Site Vice President - Dresden Nuclear Power Station Dresden Nuclear Power Station Plant Manager Quad Cities Nuclear Power Station Plant Manager Regulatory Assurance Manager - Quad Cities Regulatory Assurance Manager - Dresden Chief Operating Officer Senior Vice President - Nuclear Services Senior Vice President - Mid-West Regional Operating Group Vice President - Mid-West Operations Support Vice President - Licensing and Regulatory Affairs Director Licensing - Mid-West Regional Operating Group Manager Licensing - Dresden and Quad Cities Senior Counsel, Nuclear, Mid-West Regional Operating Group Document Control Desk - Licensing Vice President - Law and Regulatory Affairs Mid American Energy Company Assistant Attorney General Illinois Department of Nuclear Safety State Liaison Officer, State of Illinois State Liaison Officer, State of Iowa Chairman, Illinois Commerce Commission D. Tubbs, Manager of Nuclear MidAmerican Energy Company
DOCUMENT NAME: C:\\ORPCheckout\\FileNET\\ML041060410.wpd To receive a copy of this document, indicate in the box: "C" = Copy without attachment/enclosure "E" = Copy with attachment/enclosure "N" = No copy OFFICE RIII RIII NRR RIII NAME PPelke/trn PHiland for MRing WRuland PHiland for SReynolds DATE 04/20/04 04/20/04 04/19/04 04/20/04 OFFICIAL RECORD COPY
C. Crane ADAMS Distribution:
AJM DFT MXB LWR RidsNrrDipmIipb GEG HBC DRC1 KKB DRPIII DRSIII PLB1 JRK1