ML15106A928: Difference between revisions
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| number = ML15106A928 | | number = ML15106A928 | ||
| issue date = 04/24/2015 | | issue date = 04/24/2015 | ||
| title = | | title = Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 5.5.2, :Primary Coolant Sources Outside Containment | ||
| author name = Purnell B | | author name = Purnell B | ||
| author affiliation = NRC/NRR/DORL/LPLIII-2 | | author affiliation = NRC/NRR/DORL/LPLIII-2 | ||
| addressee name = Hanson B | | addressee name = Hanson B | ||
| addressee affiliation = Exelon Generation Co, LLC | | addressee affiliation = Exelon Generation Co, LLC | ||
| docket = 05000461 | | docket = 05000461 | ||
Line 14: | Line 14: | ||
| page count = 4 | | page count = 4 | ||
| project = TAC:MF5291 | | project = TAC:MF5291 | ||
| stage = RAI | |||
}} | }} | ||
=Text= | =Text= | ||
{{#Wiki_filter:}} | {{#Wiki_filter:UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 lpril 2L~, 2015 Mr. Bryan C. Hanson Senior Vice President Exelon Generation Company, LLC President and Chief Nuclear Officer Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555 | ||
==SUBJECT:== | |||
CLINTON POWER STATION, UNIT 1 - REQUEST FOR ADDITIONAL INFORMATION REGARDING LICENSE AMENDMENT REQUEST TO REVISE TECHNICAL SPECIFICATION 5.5.2, "PRIMARY COOLANT SOURCES OUTSIDE CONTAINMENT" (TAC NO. MF5291) | |||
==Dear Mr. Hanson:== | |||
By application dated November 17, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML14321A882), Exelon Generation Company, LLC (the licensee) submitted a request to revise Technical Specification (TS) 5.5.2, "Primary Coolant Sources Outside Containment," for Clinton Power Station (CPS), Unit 1. Currently, TS 5.5.2 requires that an integrated leak test be performed on each system subject to TS 5.5.2 at refueling cycle intervals or less. The proposed change would require this test to be performed at least once per 24 months. The reason for the request is to support the CPS transition from 2-year to 1-year refueling cycles. The U.S. Nuclear Regulatory Commission staff is reviewing the application and has determined that additional information is needed to complete its review. | |||
A response to the enclosed request should be provided by June 19, 2015. This request was discussed with Mr. Tim Byam of your staff on April 22, 2015. | |||
B. Hanson Should you have any questions, please contact me at 301-415-1380 or by email at blake.purnell@nrc.gov. | |||
Sincerely, Blake Purnell, Project Manager Plant Licensing 111-2 and Planning and Analysis Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-461 | |||
==Enclosure:== | |||
Request for Additional Information cc w/encl: Listserv | |||
REQUEST FOR ADDITIONAL INFORMATION LICENSE AMENDMENT REQUEST TO REVISE TECHNICAL SPECIFICATION 5.5.2, "PRIMARY COOLANT SOURCES OUTSIDE CONTAINMENT" CLINTON POWER STATION, UNIT 1 DOCKET NO. 50-461 By application dated November 17, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML14321A882), Exelon Generation Company, LLC (the licensee) submitted a request to revise Technical Specification (TS) 5.5.2, "Primary Coolant Sources Outside Containment," for Clinton Power Station (CPS), Unit 1. The reason for the request is to support the CPS transition from 2-year to 1-year refueling cycles. Currently, TS 5.5.2 requires that an integrated leak test be performed on each system subject to TS 5.5.2 at refueling cycle intervals or less. The proposed change would require this test to be performed at least once per 24 months. The U.S. Nuclear Regulatory Commission staff is reviewing the application and has determined that the additional information below is needed to complete its review. | |||
RAl-1 Provide the integrated leak test data for each system under TS 5.5.2 for the last two outages, including the test acceptance criterion, test pressure, as-found and as-left test leakage rate, and failed components. | |||
RAl-2 Provide justification why the proposed "Refueling Only Outage" will not significantly impact the leakage pathways and associated leakage rates for each system under TS 5.5.2. | |||
Enclosure | |||
ML15106A928 *via memo OFFICE LPL3-2/PM LPL3-2/LA SCVB/BC* LPL3-2/BC LPL3-2/PM NAME BPurnell SRohrer RDennig TTate BPurnell DATE 4/23/15 4/20/15 3/30/15 4/24/15 4/24/15}} |
Latest revision as of 13:56, 31 October 2019
ML15106A928 | |
Person / Time | |
---|---|
Site: | Clinton ![]() |
Issue date: | 04/24/2015 |
From: | Blake Purnell Plant Licensing Branch III |
To: | Bryan Hanson Exelon Generation Co |
Blake Purnell, NRR/DORL | |
References | |
TAC MF5291 | |
Download: ML15106A928 (4) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 lpril 2L~, 2015 Mr. Bryan C. Hanson Senior Vice President Exelon Generation Company, LLC President and Chief Nuclear Officer Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555
SUBJECT:
CLINTON POWER STATION, UNIT 1 - REQUEST FOR ADDITIONAL INFORMATION REGARDING LICENSE AMENDMENT REQUEST TO REVISE TECHNICAL SPECIFICATION 5.5.2, "PRIMARY COOLANT SOURCES OUTSIDE CONTAINMENT" (TAC NO. MF5291)
Dear Mr. Hanson:
By application dated November 17, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML14321A882), Exelon Generation Company, LLC (the licensee) submitted a request to revise Technical Specification (TS) 5.5.2, "Primary Coolant Sources Outside Containment," for Clinton Power Station (CPS), Unit 1. Currently, TS 5.5.2 requires that an integrated leak test be performed on each system subject to TS 5.5.2 at refueling cycle intervals or less. The proposed change would require this test to be performed at least once per 24 months. The reason for the request is to support the CPS transition from 2-year to 1-year refueling cycles. The U.S. Nuclear Regulatory Commission staff is reviewing the application and has determined that additional information is needed to complete its review.
A response to the enclosed request should be provided by June 19, 2015. This request was discussed with Mr. Tim Byam of your staff on April 22, 2015.
B. Hanson Should you have any questions, please contact me at 301-415-1380 or by email at blake.purnell@nrc.gov.
Sincerely, Blake Purnell, Project Manager Plant Licensing 111-2 and Planning and Analysis Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-461
Enclosure:
Request for Additional Information cc w/encl: Listserv
REQUEST FOR ADDITIONAL INFORMATION LICENSE AMENDMENT REQUEST TO REVISE TECHNICAL SPECIFICATION 5.5.2, "PRIMARY COOLANT SOURCES OUTSIDE CONTAINMENT" CLINTON POWER STATION, UNIT 1 DOCKET NO. 50-461 By application dated November 17, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML14321A882), Exelon Generation Company, LLC (the licensee) submitted a request to revise Technical Specification (TS) 5.5.2, "Primary Coolant Sources Outside Containment," for Clinton Power Station (CPS), Unit 1. The reason for the request is to support the CPS transition from 2-year to 1-year refueling cycles. Currently, TS 5.5.2 requires that an integrated leak test be performed on each system subject to TS 5.5.2 at refueling cycle intervals or less. The proposed change would require this test to be performed at least once per 24 months. The U.S. Nuclear Regulatory Commission staff is reviewing the application and has determined that the additional information below is needed to complete its review.
RAl-1 Provide the integrated leak test data for each system under TS 5.5.2 for the last two outages, including the test acceptance criterion, test pressure, as-found and as-left test leakage rate, and failed components.
RAl-2 Provide justification why the proposed "Refueling Only Outage" will not significantly impact the leakage pathways and associated leakage rates for each system under TS 5.5.2.
Enclosure
ML15106A928 *via memo OFFICE LPL3-2/PM LPL3-2/LA SCVB/BC* LPL3-2/BC LPL3-2/PM NAME BPurnell SRohrer RDennig TTate BPurnell DATE 4/23/15 4/20/15 3/30/15 4/24/15 4/24/15