ML15022A197
| ML15022A197 | |
| Person / Time | |
|---|---|
| Site: | Byron, Braidwood  |
| Issue date: | 03/30/2015 |
| From: | Joel Wiebe Plant Licensing Branch III |
| To: | Bryan Hanson Exelon Generation Co |
| Joel Wiebe, NRR/DORL 415-6606 | |
| References | |
| TAC MF4023, TAC MF4024, TAC MF4025, TAC MF4026 | |
| Download: ML15022A197 (9) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 Mr. Bryan C. Hanson Senior Vice President Exelon Generation Company, LLC President and Chief Nuclear Officer Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555 March 30, 2015
SUBJECT:
BRAIDWOOD STATION, UNIT NOS. 1 AND 2, AND BYRON STATION, UNIT NOS. 1AND2-CORRECTION TO SAFETY EVALUATION PAGES FOR AMENDMENT NOS. 180, 180, 186, AND 186 RE: CLARIFICATION OF TECHNICAL SPECIFICATIONS 3.3.1 AND 3.3.2 (TAC NOS. MF4023, MF4024, MF4025, AND MF4026)
Dear Mr. Hanson:
By letter dated December 7, 2014, (Agencywide Documents Access and Management System (ADAMS) Accession No. ML 14239A427), the U.S. Nuclear Regulatory Commission (NRC) issued Amendment No. 180 to Facility Operating License No. NPF-72 and Amendment No. 180 to Facility Operating License No. NPF-77 for the Braidwood Station, Units 1 and 2, respectively, and Amendment No. 186 to Facility Operating License No. NPF-37 and Amendment No. 186 to Facility Operating License No. NPF-66 for the Byron Station, Unit Nos. 1 and 2, respectively.
The associated safety evaluation (SE) contained several typographical errors. Specifically, the errors consisted of several instances of inadvertent inclusion of the phrase "and setpoint adjustment," an omission of the Pressurizer Pressure High function from the list of functions to which Condition E applies, and a misspelled word. The errors occurred on pages 2 through 6 of the associated SE. Corrected copies of pages 2 through 6 of the associated SE are enclosed.
These corrections do not change any of the conclusions in the SE associated with the license amendments.
B. Hanson We apologize if these errors have caused any inconvenience.
If you have any questions this matter, please contact the Senior Project Manager, Joel S. Wiebe, at (301) 415-6606 or by e-mail at Joel.Wiebe@nrc.gov.
Docket No. STN 50-456, STN 50-457, STN 50-454, STN 50-455
Enclosures:
Corrected SE pages cc w/enclosures:
Distribution via Listserv Sincerely, Joel S. Wiebe, Senior Project Manager Plant Licensing 111-2 and Planning and Analysis Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation ENCLOSURE Braidwood Station, Units 1 and 2 Byron Station, Units 1 and 2 Corrected Pages for Amendments 180, 180, 186, and 186 Dated December 7, 2014 Title 10 of the Code of Federal Regulations (10 CFR), Section 50.36(c)(2)(ii)(C) requires, in part, that a TS limiting condition for operation (LCO) be established for a structure, system, or component that is part of the primary success path and that functions or actuates to mitigate a design basis accident or transient that either assumes the failure of or presents a challenge to the integrity of a fission product barrier. 3.0 TECHNICAL EVALUATION 3.1 TS 3.3.1 Condition D Required Action Notes Current Text: 1. For Functions with installed bypass test capability, one channel may be bypassed for up to 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> for surveillance testing and setpoint adjustment.
- 2. For Functions with no installed bypass test capability, the inoperable channel may be bypassed for up to 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> for surveillance testing and setpoint adjustment of other channels.
Revised Text: One channel may be bypassed for up to 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> for surveillance testing and setpoint adjustment.
Evaluation The licensee in its March 14, 2011 (ADAMS Accession No. ML 110760088), letter, identifies that Condition D applies to the Power Range Neutron Flux-High function.
The NRC staff by amendment dated April 9, 2012 (ADAMS Accession No. ML 120950371
), approved installed bypass capability for Power Range Neutron Flux. In its April 17, 2014, submittal, the licensee states that Power Range Neutron High function has been modified to have installed bypass capability.
Based on the above NRC evaluation, the NRC staff determined that the wording regarding functions with no installed bypass test capability no longer applies and should be removed for clarification.
The NRC staff, therefore, concludes that the revised text is consistent with the currently installed function capability and is acceptable.
Condition E Required Action Notes Current Text: 1. For Functions with installed bypass test capability, one channel may be bypassed for up to 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> for surveillance testing. 2. For Functions with no installed bypass test capability, the inoperable channel may be bypassed for up to 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> for surveillance testing of other channels.
Revised Text: One channel may be bypassed for up to 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> for surveillance testing. Evaluation The licensee in its April 17, 2014, application, identified that Condition E applies to the following functions:
- Power Range Neutron Flux-Low;
- Overtemperature ti T;
- Overpower ti T;
- Power Range Neutron Flux-High Positive Rate
- Pressurizer Pressure High; and
- SG Water Level-Low Low. The NRC staff by amendment dated April 9, 2012, approved installed bypass capability for the above listed functions.
In its April 17, 2014, submittal, the licensee states that the above listed functions have been modified to have installed bypass capability.
Based on the above NRC evaluation, the NRC staff determined that the wording regarding functions with no installed bypass test capability no longer applies and should be removed for clarification.
The NRC staff, therefore, concludes that the revised text is consistent with the currently installed function capability and is acceptable.
Condition K Required Action Notes Current Text: 1. For Functions with installed bypass test capability, one channel may be bypassed for up to 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> for surveillance testing. 2. For Functions with no installed bypass test capability, the inoperable channel may be bypassed for up to 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> for surveillance testing of other channels.
Revised Text: 1. For Functions with installed bypass test capability (Functions 8a, 9, and 10), one channel may be bypassed for up to 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> for surveillance testing. 2. For Functions with no installed bypass test capability (Functions 12 and 13), the inoperable channel may be bypassed for up to 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> for surveillance testing of other channels.
Evaluation The licensee in its April 17, 2014, application, identified that Condition K applies to the following functions:
° Function Sa ° Function 9 ° Function 10 ° Function 12 ° Function 13 Pressurizer Pressure-Low Pressurizer Water Level -High Reactor Coolant Flow -Low Undervoltage Reactor Coolant Pumps Underfrequency Reactor Coolant Pumps The NRC staff by amendment dated April 9, 2012, approved installed bypass capability for: Function Sa Function 9 Function 10 Pressurizer Pressure-Low Pressurizer Water Level -High Reactor Coolant Flow -Low In its April 17, 2014, submittal, the licensee stated that the above three functions have been modified to have installed bypass capability.
The revised text provides clarification wording to specify Functions 12 and 13. Based on the above NRC evaluation, the NRC staff determines that the wording regarding functions with installed bypass test capability is applicable to Functions Sa, 9, and 10 and that the wording regarding the functions with no installed bypass test capability is applicable to Functions 12 and 13. The NRC staff, therefore, concludes that the revised text is consistent with the function capability and is acceptable.
3.2 TS 3.3.2 Condition D Required Action Notes Current Text: 1. For Functions with installed bypass test capability, one channel may be bypassed for up to 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> for surveillance testing. 2. For Functions with no installed bypass test capability, the inoperable channel may be bypassed for up to 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> for surveillance testing of other channels.
Revised Text: One channel may be bypassed for up to 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> for surveillance testing. Evaluation The licensee in its April 17, 2014, application, identified that Condition D applies to the following functions:
Containment Pressure-High 1; Pressurizer Pressure-Low; Steam Line Pressure-Low; Containment Pressure-High 2; Steam Line Pressure-Negative Rate-High; SG Water Level-Low Low; and SG Water Level-High High (P-14). The NRC staff by amendment dated April 9, 2012, approved installed bypass capability for the above functions.
In its April 17, 2014, submittal, the licensee stated that the above functions have been modified to have installed bypass capability.
Based on the above NRC evaluation, the NRC staff determined that the wording regarding functions with no installed bypass test capability no longer applies and should be removed for clarification.
The NRC staff, therefore, concludes that the revised text is consistent with the currently installed function capability and is acceptable.
Condition K Required Action Notes Current Text: 1. For Functions with installed bypass test capability, one channel may be bypassed for up to 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> for surveillance testing. 2. For Functions with no installed bypass test capability, the inoperable channel may be bypassed for up to 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> for surveillance testing of other channels.
Revised Text: One channel may be bypassed for up to 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> for surveillance testing. Evaluation The licensee in its March 14, 2011, letter, identifies that Condition K applies the Refueling Water Storage Tank Level-Low Low function.
The NRC staff by amendment dated April 9, 2012, approved installed bypass capability for the Refueling Water Storage Tank Level-Low Low function.
In its April 17, 2014, submittal, the licensee states that the Refueling Water Storage Tank Level-Low Low function has been modified to have installed bypass capability. Based on the above NRC evaluation, the NRC staff determined that the wording regarding functions with no installed bypass test capability no longer applies and should be removed for clarification.
The NRC staff, therefore, concludes that the revised text is consistent with the currently installed function capability and is acceptable.
Based on the above, the NRC staff concludes that the TS revisions did not change LCOs, surveillances, or other TS requirements.
The revisions removed text that was no longer applicable and inserted text to specifically identify TS required functions that have bypass test capability.
Therefore the NRC staff concludes that the TSs with the requested revisions continue to meet 10 CFR 50.36(c)(2)(ii)(C) requirements.
4.0 STATE CONSULTATION
In accordance with the Commission's regulations, the Illinois State official was notified of the proposed issuance of the amendment.
The State official had no comments.
5.0 ENVIRONMENTAL
CQNSIDERATION The amendments make editorial and minor revisions to the license that do not change requirements or intent. The Commission has previously issued a proposed finding that the amendments involve no significant hazards consideration, and there has been no public comment on such finding (79 FR 42546; July 22, 2014). Accordingly, the amendments meet the eligibility criteria for categorical exclusion set forth in 10 CFR 51.22(c)(1 O)(v). Pursuant to 1 O CFR 51.22(1 O)(v) no environmental impact statement or environmental assessment need be prepared in connection with the issuance of the amendments.
6.0 CONCLUSION
The Commission has concluded, based on the considerations discussed above, that: (1) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, (2) there is reasonable assurance that such activities will be conducted in compliance with the Commission's regulations, and (3) the issuance of the amendments will not be inimical to the common defense and security or to the health and safety of the public. Principal Contributor:
Joel S. Wiebe. Date of issuance:
December 7, 2014 B. Hanson We apologize if these errors have caused any inconvenience.
If you have any questions regarding this matter, please contact the Senior Project Manager, Joel S. Wiebe, at (301) 415-6606 or by e-mail at Joel.Wiebe@nrc.gov.
Docket No. STN 50-456, STN 50-457, STN 50-454, STN 50-455
Enclosures:
Corrected SE pages cc w/enclosures:
Distribution via Listserv cc w/enclosures:
Distribution via Listserv DISTRIBUTION:
Sincerely, IRA/ Joel S. Wiebe, Senior Project Manager Plant Licensing 111-2 and Planning and Analysis Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation PUBLIC RidsNrrDorlLpl3-2 Resource RidsNrrPMBraidwood Resource RidsOgcRp Resource RidsNrrDorlDpr Resource RidsNrrPMByron Resource RidsNrrLASRohrer Resource RidsRgn3MailCenter Resource RidsAcrsAcnw_MailCTR LPL3-2Branch Reading ADAMS Accession No.: ML15022A197 OFFICE LPL3-1/PM LPL3-2/PM LPL 1-2/LA LPL3-2/BC LPL3-2/PM NAME ADietrich JWiebe SRohrer TT ate JWiebe DATE 1/14/15 3/19/15 3/30/15 3/25/15 3/30/15 OFFICIAL RECORD COPY