Exelon/Amergen 60-Day Response to NRC Generic Letter 2003-01, Control Room Habitability.| ML032310390 |
| Person / Time |
|---|
| Site: |
Peach Bottom, Byron, Braidwood, Limerick, Clinton  |
|---|
| Issue date: |
08/11/2003 |
|---|
| From: |
Gallagher M
AmerGen Energy Co, British Energy Co, Exelon Generation Co, Exelon Nuclear |
|---|
| To: |
Document Control Desk, Office of Nuclear Reactor Regulation |
|---|
| References |
|---|
| GL-03-001, RS-03-154 |
| Download: ML032310390 (3) |
|
|
|---|
Category:Letter type:RS
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2024-01-11
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Text
ExeIt n.m AmerGenm Nuclear An Exelon/British Energy Company Exelon Generation www.exeloncorp.com 4300 Winfield Road Warrenville, IL 60555 RS-03-154 August 11, 2003 United States Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Braidwood Station, Units 1 and 2 Facility Operating License Nos. NPF-72 and NPF-77 NRC Docket Nos. STN 50-456 and STN 50-457 Byron Station, Units 1 and 2 Facility Operating License Nos. NPF-37 and NPF-66 NRC Docket Nos. STN 50-454 and STN 50-455 Clinton Power Station, Unit 1 Facility Operating License No. NPF-62 NRC Docket No. 50-461 Limerick Generating Station, Units 1 and 2 Facility Operating License Nos. NPF-39 and NPF-85 NRC Docket Nos. 50-352 and 50-353 Peach Bottom Atomic Power Station, Units 2 and 3 Facility Operating License Nos. DPR-44 and DPR-56 NRC Docket Nos. 50-277, and 50-278
Subject:
Exelon/AmerGen 60-Day Response To NRC Generic Letter 2003-01, "Control Room Habitability"
References:
(1) Letter from David B. Matthews (NRC) to Addressees, dated June 12, 2003, UNRC Generic Letter 2003-01: Control Room Habitability" On June 12, 2003, the NRC issued Generic Letter (GL) 2003-01, "Control Room Habitability" (Reference 1). The GL requested that all holders of operating licenses provide control room habitability information within 180 days of Reference 1. The GL also specifies that if the information cannot be provided by the requested completion date, a written response indicating this should be provided within 60 days of Reference 1, indicating the proposed alternative course of action and the schedule for completing the alternative course of action. While Exelon Generation Company, LLC (Exelon) and AmerGen Energy Company, LLC (AmerGen) believe that existing design, testing, inspections, and programmatic controls provide reasonable
Response to GL 2003-01 August 11, 2003 Page 2 assurance of control room envelope integrity, additional integrated inleakage testing is planned for the above-listed plants to provide further verification of unfiltered inleakage values. For Clinton Power Station, additional integrated inleakage testing is planned to confirm the inleakage currently quantified by negative pressure ductwork inleakage surveillances. Exelon and AmerGen have evaluated the requested information and determined that some of the requested information cannot be provided by the requested GL completion date due to scheduling limitations for performing these tests. Accordingly, the following information is provided as requested by the GL:
In order to provide a complete response to the GL for the above-listed plants, Exelon and AmerGen plan to perform integrated control room envelope testing utilizing the American Society for Testing and Materials (ASTM) standard E741, "Standard Test Method for Determining Air Change in a Single Zone by Means of a Tracer Gas Dilution," methodology to validate the assumed design basis unfiltered inleakage value. For Clinton Power Station, the additional control room integrated testing will validate the inleakage currently quantified by negative pressure ductwork inleakage surveillances. This testing is currently planned to be performed in the year 2004, and a complete response to the GL requested information will be provided within 90 days of completion of each plant's test.
Exelon and AmerGen will provide a more detailed schedule commitment when test vendor availability and contracts are firmly established.
The following table identifies commitments made in this document. Any other actions discussed in the submittal represent intended or planned actions. They are described to the NRC for the NRC's information and are not regulatory commitments.
COMMITMENT COMMITTED DATE OR "OUTAGE" Braidwood Station, Byron Station, Clinton Power Station, Year 2004 Limerick Generating Station, and Peach Bottom Atomic GL response to be Power Station plan to perform integrated control room provided within 90 days envelope testing utilizing the ASTM E741 methodology. of completion of each plant's test This commitment may be revised based on continuing technical evaluation of the control room envelope integrity testing and other programmatic controls presently in place at these individual plants.
Response to GL 2003-01 August 11, 2003 Page 3 If you have any questions or require additional information, please contact Mr. David J. Distel at (610) 765-5517.
Respectfully, Michael P. Gallagher Director - Licensing and Regulatory Affairs Exelon Generation Company, LLC and AmerGen Energy Company, LLC cc: Regional Administrator, NRC Region I Regional Administrator, NRC Region IlIl NRC Project Manager, NRR - Braidwood Station NRC Project Manager, NRR - Byron Station NRC Project Manager, NRR - Clinton Power Station NRC Project Manager, NRR - LGS NRC Project Manager, NRR - PBAPS NRC Senior Resident Inspector - Braidwood Station NRC Senior Resident Inspector - Byron Station NRC Senior Resident Inspector - Clinton Power Station NRC Senior Resident Inspector - LGS NRC Senior Resident Inspector - PBAPS Office of Nuclear Facility Safety - Illinois Department of Nuclear Safety R. R. Janati, Commonwealth of Pennsylvania
Text
ExeIt n.m AmerGenm Nuclear An Exelon/British Energy Company Exelon Generation www.exeloncorp.com 4300 Winfield Road Warrenville, IL 60555 RS-03-154 August 11, 2003 United States Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Braidwood Station, Units 1 and 2 Facility Operating License Nos. NPF-72 and NPF-77 NRC Docket Nos. STN 50-456 and STN 50-457 Byron Station, Units 1 and 2 Facility Operating License Nos. NPF-37 and NPF-66 NRC Docket Nos. STN 50-454 and STN 50-455 Clinton Power Station, Unit 1 Facility Operating License No. NPF-62 NRC Docket No. 50-461 Limerick Generating Station, Units 1 and 2 Facility Operating License Nos. NPF-39 and NPF-85 NRC Docket Nos. 50-352 and 50-353 Peach Bottom Atomic Power Station, Units 2 and 3 Facility Operating License Nos. DPR-44 and DPR-56 NRC Docket Nos. 50-277, and 50-278
Subject:
Exelon/AmerGen 60-Day Response To NRC Generic Letter 2003-01, "Control Room Habitability"
References:
(1) Letter from David B. Matthews (NRC) to Addressees, dated June 12, 2003, UNRC Generic Letter 2003-01: Control Room Habitability" On June 12, 2003, the NRC issued Generic Letter (GL) 2003-01, "Control Room Habitability" (Reference 1). The GL requested that all holders of operating licenses provide control room habitability information within 180 days of Reference 1. The GL also specifies that if the information cannot be provided by the requested completion date, a written response indicating this should be provided within 60 days of Reference 1, indicating the proposed alternative course of action and the schedule for completing the alternative course of action. While Exelon Generation Company, LLC (Exelon) and AmerGen Energy Company, LLC (AmerGen) believe that existing design, testing, inspections, and programmatic controls provide reasonable
Response to GL 2003-01 August 11, 2003 Page 2 assurance of control room envelope integrity, additional integrated inleakage testing is planned for the above-listed plants to provide further verification of unfiltered inleakage values. For Clinton Power Station, additional integrated inleakage testing is planned to confirm the inleakage currently quantified by negative pressure ductwork inleakage surveillances. Exelon and AmerGen have evaluated the requested information and determined that some of the requested information cannot be provided by the requested GL completion date due to scheduling limitations for performing these tests. Accordingly, the following information is provided as requested by the GL:
In order to provide a complete response to the GL for the above-listed plants, Exelon and AmerGen plan to perform integrated control room envelope testing utilizing the American Society for Testing and Materials (ASTM) standard E741, "Standard Test Method for Determining Air Change in a Single Zone by Means of a Tracer Gas Dilution," methodology to validate the assumed design basis unfiltered inleakage value. For Clinton Power Station, the additional control room integrated testing will validate the inleakage currently quantified by negative pressure ductwork inleakage surveillances. This testing is currently planned to be performed in the year 2004, and a complete response to the GL requested information will be provided within 90 days of completion of each plant's test.
Exelon and AmerGen will provide a more detailed schedule commitment when test vendor availability and contracts are firmly established.
The following table identifies commitments made in this document. Any other actions discussed in the submittal represent intended or planned actions. They are described to the NRC for the NRC's information and are not regulatory commitments.
COMMITMENT COMMITTED DATE OR "OUTAGE" Braidwood Station, Byron Station, Clinton Power Station, Year 2004 Limerick Generating Station, and Peach Bottom Atomic GL response to be Power Station plan to perform integrated control room provided within 90 days envelope testing utilizing the ASTM E741 methodology. of completion of each plant's test This commitment may be revised based on continuing technical evaluation of the control room envelope integrity testing and other programmatic controls presently in place at these individual plants.
Response to GL 2003-01 August 11, 2003 Page 3 If you have any questions or require additional information, please contact Mr. David J. Distel at (610) 765-5517.
Respectfully, Michael P. Gallagher Director - Licensing and Regulatory Affairs Exelon Generation Company, LLC and AmerGen Energy Company, LLC cc: Regional Administrator, NRC Region I Regional Administrator, NRC Region IlIl NRC Project Manager, NRR - Braidwood Station NRC Project Manager, NRR - Byron Station NRC Project Manager, NRR - Clinton Power Station NRC Project Manager, NRR - LGS NRC Project Manager, NRR - PBAPS NRC Senior Resident Inspector - Braidwood Station NRC Senior Resident Inspector - Byron Station NRC Senior Resident Inspector - Clinton Power Station NRC Senior Resident Inspector - LGS NRC Senior Resident Inspector - PBAPS Office of Nuclear Facility Safety - Illinois Department of Nuclear Safety R. R. Janati, Commonwealth of Pennsylvania