ML19016A171
| ML19016A171 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 01/23/2019 |
| From: | Bhalchandra Vaidya Plant Licensing Branch III |
| To: | Bryan Hanson Exelon Generation Co, Exelon Nuclear |
| Vaidya B | |
| References | |
| EPID L-2017-LLA-0415 | |
| Download: ML19016A171 (6) | |
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 LaSalle County Station 4300 Winfield Road Warrenville, IL 60555 January 23, 2019
SUBJECT:
LASALLE COUNTY STATION, UNITS 1 AND 2-CORRECTION LETTER FOR LICENSE AMENDMENTS TO RENEWED FACILITY OPERA TING LICENSES RE: APPLICATION TO REVISE TECHNICAL SPECIFICATIONS TO ADOPT TSTF-542, "REACTOR PRESSURE VESSEL WATER INVENTORY CONTROL" (EPID L-2017-LLA-0415)
Dear Mr. Hanson:
By letter dated October 15, 2018 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML18226A202), the U.S. Nuclear Regulatory Commission (NRC) staff issued Amendment Nos. 230 and 216 to Facility Operating License Nos. NPF-11 and NPF-18 for the LaSalle County Station, Units 1 and 2, respectively. The amendments were in response to your application dated December 13, 2017, as supplemented by letter dated June 18, 2018 (ADAMS Accession Nos. ML17360A159 and ML18169A401, respectively).
The NRC staff has identified that due to inadvertent error, the revised technical specification pages TS 3.5.2-1 and TS 3.5.2-2 issued with the amendments did not match those submitted by the licensee. Specifically, on page TS 3.5.2-1, the text of REQUIRED ACTION 8.1 read"...
offsite power." instead of"... offsite electrical power."; and on page TS 3.5.2-2, CONDITION C, missed a period at the end of the description.
The NRC staff has concluded that the error was introduced during the preparation of the license amendment. The correction does not change any of the conclusions in the safety evaluation associated with the amendments and does not affect the associated notice to the public.
The corrected pages are enclosed with this letter. We apologize for the inconvenience.
If you have any questions, please contact me at 301-415-3308 or via e-mail at Bhalchandra.Vaidya@nrc.gov.
Docket Nos. 50-373 and 50-37 4
Enclosure:
As stated cc: Listserv Sincerely,
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Bhalchandra K. Vaidya, Project Manager Plant Licensing Branch Ill Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
ENCLOSURE EXELON GENERATION COMPANY, LLC LASALLE COUNTY STATION, UNITS 1 AND 2 DOCKET NOS. 50-373 AND 50-37 4 Enclosure
RPV Water Inventory Control 3.5.2 3.5 EMERGENCY CORE COOLING SYSTEMS (ECCS), REACTOR PRESSURE VESSEL (RPV)
WATER INVENTORY CONTROL, AND REACTOR CORE ISOLATION COOLING (RCIC)
SYSTEM 3.5.2 RPV Water Inventory Control LCO 3.5.2 DRAIN TIME of RPV water inventory to the top of active fuel (TAF) shall be~ 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />.
One ECCS injection/spray subsystem shall be OPERABLE.
-- - - - - - - - - - -- - - - - - - - - - - - - - --NOTE- - - -- - - - - - -- - - - - - - - - - - - - - - - -
A Low Pressure Coolant Injection (LPCI) subsystem may be considered OPERABLE during alignment and operation for decay heat removal, if capable of being manually realigned and not otherwise inoperable.
APPLICABILITY:
MODES 4 and 5.
ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A.
Required ECCS A.1 Restore required ECCS 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> injection/spray injection/spray subsystem inoperable.
subsystem to OPERABLE status.
B.
Required Action and B.1 Initiate action to Immediately associated Completion establish a method of Time of Condition A water injection not met.
capable of operating without offs ite electrical power.
(continued)
LaSalle 1 and 2 3.5.2-1 Amendment No. 230/216 Correction Letter Dated January 23, 2019
ACTIONS (continued)
CONDITION C.
DRAIN TIME< 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> and~ 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.
LaSalle 1 and 2 C.1 RPV Water Inventory Control 3.5.2 REQUIRED ACTION Verify secondary containment boundary is capable of being established in less than the DRAIN TIME.
COMPLETION TIME 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> C.2 Verify each secondary 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> containment C.3 penetration flow path is capable of being isolated in less than t he D RA I N TI M E
- Verify one standby gas treatment subsystem is capable of being placed in operation in less than the DRAIN TIME.
4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> (continued) 3.5.2-2 Amendment No. 230/216 Correction Letter Dated January 23, 2019
ML19016A171 OFFICE NRR/D0RL/LPL3/PM NRR/D0RL/LPL3/LA N RR/D0RL/LPL3/BC NAME BVaidya
$Rohrer DWrona DATE 1/16/19 1/16/19 1/23/19