ML032731158
| ML032731158 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Peach Bottom, Clinton, Quad Cities, LaSalle  |
| Issue date: | 09/24/2003 |
| From: | Gallagher M AmerGen Energy Co, Exelon Generation Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML032731158 (2) | |
Text
Exekr5nSM AmerGen.m Nuclear An Exelon/British Energy Company Exelon Generation www.exeloncorp.com 4300 Winfield Road 10 CFR 50.55a Warrenville, IL 60555 September 24, 2003 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 Clinton Power Station Facility Operating License No. NPF-62 NRC Docket No. 50-461 Dresden Nuclear Power Station, Unit 2 Facility Operating License No. DPR-19 NRC Docket No. 50-237 LaSalle County Station, Unit 1 Facility Operating License No. NPF-1 1 NRC Docket No. 50-373 Peach Bottom Atomic Power Station, Unit 3 Facility Operating License No. DPR-56 NRC Docket No. 50-278 Quad Cities Nuclear Power Station, Unit 2 Facility Operating License No. DPR-29 NRC Docket No. 50-254
Subject:
Implementation of the Performance Demonstration Methods Supplement Ten (10) - "Qualification Requirements for Dissimilar Metal Piping Welds'
References:
- 1) Letter from M. P. Gallagher (Exelon Generation Company, LLC and AmerGen Energy Company, LLC) to U. S. Nuclear Regulatory Commission, dated March 26, 2003.
- 2) Letter from M. P. Gallagher (Exelon Generation Company, LLC and AmerGen Energy Company, LLC) to U. S. Nuclear Regulatory Commission, dated March 26,2003.
- 3) Letter from J. W. Clifford (U. S. Nuclear Regulatory Commission) to J. L. Skolds (Exelon Generation Company, LLC and AmerGen Energy Company, LLC),
dated July 16, 2003.
Dear Sir/Madam:
In the Reference 1 letter, Exelon Generation Company (Exelon), LLC and AmerGen Energy Company (AmerGen), LLC, requested approval of a proposed alternative concerning performance demonstration methods for ultrasonic examination systems. Specifically, this
-A u4-
Implementation of the Performance Demonstration Methods Supplement Ten (10) -
'Qualification Requirements for Dissimilar Metal Piping Welds" September 24, 2003 Page 2 proposed alternative concerns dissimilar metal piping welds as implemented by Supplement 10.
This alternative was subsequently approved in the Reference 3 letter.
As discussed in the Reference 1 letter, additional relief regarding the RMS value for crack depth sizing would be addressed in separate correspondence. This additional relief request was contained in the Reference 2 letter. Since the time that the request was submitted, the vendor has qualified technicians to the Code (.125 RMS) value for automated examinations. Therefore, Exelon and AmerGen are withdrawing the Reference 2 request for relief.
If you have any questions, please contact us.
Very truly yours, Michael P. Gallagher Director, Licensing and Regulatory Affairs Exelon Generation Company, LLC AmerGen Energy Company, LLC cc:
Regional Administrator - NRC Region I Regional Administrator - NRC Region IlIl NRC Senior Resident Inspector - Dresden Nuclear Power Station NRC Senior Resident Inspector - LaSalle County Station NRC Senior Resident Inspector - Peach Bottom Atomic Power Station NRC Senior Resident Inspector - Quad Cities Nuclear Power Station NRC Senior Resident Inspector - Clinton Power Station NRC Project Manager, NRR - Dresden Nuclear Power Station, Units 2 and 3 NRC Project Manager, NRR - LaSalle County Station NRC Project Manager, NRR - Peach Bottom Atomic Power Station NRC Project Manager, NRR - Quad Cities Nuclear Power Station NRC Project Manager, NRR - Clinton Power Station