IR 05000352/2020013
| ML20266G286 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 09/22/2020 |
| From: | Josephine Ambrosini Division Reactor Projects I |
| To: | Bryan Hanson Exelon Generation Co, Exelon Nuclear |
| Ambrosini J | |
| References | |
| IR 2020013 | |
| Download: ML20266G286 (7) | |
Text
September 22, 2020
SUBJECT:
LIMERICK GENERATING STATION, UNITS 1 AND 2 - TEMPORARY INSTRUCTION 2515/193 INSPECTION REPORT 05000352/2020013 AND 05000353/2020013
Dear Mr. Hanson:
On September 11, 2020, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Limerick Generating Station, Units 1 and 2 and discussed the results of this inspection with Mr. Martin Bonifanti and other members of your staff. The results of this inspection are documented in the enclosed report.
No findings or violations of more than minor significance were identified during this inspection.
This letter, its enclosure, and your response (if any) will be made available for public inspection and copying at http://www.nrc.gov/reading-rm/adams.html and at the NRC Public Document Room in accordance with Title 10 of the Code of Federal Regulations 2.390, Public Inspections, Exemptions, Requests for Withholding.
Sincerely, X /RA/
Signed by: Josephine A. Ambrosini
Josephine A. Ambrosini, Team Leader Technical Support and Administrative Team Division of Reactor Projects
Docket Nos. 05000352 and 05000353 License Nos. NPF-39 and NPF-85
Enclosure:
As stated
Inspection Report
Docket Numbers:
05000352 and 05000353
License Numbers:
Report Numbers:
05000352/2020013 and 05000353/2020013
Enterprise Identifier: I-2020-013-0000
Licensee:
Exelon Generation Company, LLC
Facility:
Limerick Generating Station, Units 1 and 2
Location:
Sanatoga, PA 19464
Inspection Dates:
September 7, 2020 to September 11, 2020
Inspectors:
D. Werkheiser, Senior Reactor Analyst
A. Ziedonis, Senior Resident Inspector
Approved By:
Josephine A. Ambrosini, Team Leader
Technical Support and Administrative Team
Division of Reactor Projects
SUMMARY
The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting a Temporary Instruction (TI) 2515/193 inspection at Limerick Generating Station, Units 1 and 2, in accordance with the Reactor Oversight Process. The Reactor Oversight Process is the NRCs program for overseeing the safe operation of commercial nuclear power reactors. Refer to https://www.nrc.gov/reactors/operating/oversight.html for more information.
List of Findings and Violations
No findings or violations of more than minor significance were identified.
Additional Tracking Items
None.
INSPECTION SCOPES
Inspections were conducted using the appropriate portions of the inspection procedures (IPs) in effect at the beginning of the inspection unless otherwise noted. Currently approved IPs with their attached revision histories are located on the public website at http://www.nrc.gov/reading-rm/doc-collections/insp-manual/inspection-procedure/index.html. Samples were declared complete when the IP requirements most appropriate to the inspection activity were met consistent with Inspection Manual Chapter (IMC) 2515, Light-Water Reactor Inspection Program - Operations Phase. The inspectors reviewed selected procedures and records, observed activities, and interviewed personnel to assess licensee performance and compliance with Commission rules and regulations, license conditions, site procedures, and standards.
OTHER ACTIVITIES
- TEMPORARY INSTRUCTIONS, INFREQUENT AND ABNORMAL
2515/193 - Inspection of the Implementation of EA-13-109: Order Modifying Licenses with Regard to Reliable Hardened Containment Vents Capable of Operation under Severe Accident Conditions
Inspection of the Implementation of EA-13-109: Order Modifying Licenses with Regard to Reliable Hardened Containment Vents Capable of Operation under Severe Accident Conditions (1 Sample)
- (1) PHASE 1 The inspectors evaluated licensee implementation of the appropriate elements of the reliable hardened containment wetwell vent as described in the plant specific submittal(s) and the associated NRC safety evaluation [ADAMS Accession No.
M19112A145]. Specifically, the inspectors evaluated licensee implementation of the hardened containment vent system (HCVS) functional requirements, design features, maintenance and testing, quality standards, and programmatic requirements as described in Appendix A of TI 2515/193 Revision 1.
PHASE 2 The inspectors evaluated licensee implementation of the appropriate elements of the reliable wetwell venting strategy as described in the plant specific submittal(s) and the associated NRC safety evaluation [ADAMS Accession No. M19112A145].
Specifically, the inspectors evaluated licensee implementation of severe accident water addition / severe accident water management (SAWA/SAWM) functional requirements, installed instrumentation, maintenance and testing, and programmatic requirements as described in Appendix B of TI 2515/193 Revision
INSPECTION RESULTS
No findings were identified.
EXIT MEETINGS AND DEBRIEFS
The inspectors verified no proprietary information was retained or documented in this report.
- On September 11, 2020, the inspectors presented the Temporary Inspection 2515/193 inspection results to Mr. Martin Bonifanti and other members of the licensee staff.
DOCUMENTS REVIEWED
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
2515/193
Corrective Action
Documents
4361152
4361146
4358228
4350405
4346354
4345916
4350427
4349090
4346156
4341056
4316206
4316199
231186
212802
212781
212779
212770
212763
212755
4185900
4157226
4157225
4139792
4136549
4106726
4077449
21285
4018286
Corrective Action
Documents
Resulting from
Inspection
04368729
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Drawings
M-57, Sht 1 / 4
Containment Atmosphere Control, U1, U2, and Common
Revision 49 /
M-57, Sht. 8 and
Containment Hardened Vent (U1 and U2)
Revisions 0 /
Engineering
Changes
16-00012 / 00270
/ 422831 / 423333
/ 423381
FUKUSHIMA HARDENED VENT MODIFICATIONS (On-line
/ Off-line / U1 / U2 / Common)
Various
Miscellaneous
LGS TI-2515/193 Reliable Hardened Containment Vent and
SAWA/M Summary Presentation
09/08/2020
LIMERICK GENERATING STATION, UNITS 1 AND 2 -
SAFETY EVALUATION REGARDING IMPLEMENTATION
OF HARDENED CONTAINMENT VENTS CAPABLE OF
OPERATION UNDER SEVERE ACCIDENT CONDITIONS
RELATED TO ORDER EA-13-109
05/14/2019
Procedures
CC-LG-118
SITE IMPLEMENTATION OF DIVERSE AND FLEXIBLE
COPING STRATEGIES ( SPENT FUEL POOL
INSTRUMENTATION AND HARDENED CONTAINMENT
VENT (HCVS) PROGRAM
Revision 9
CC-LG-118-1004
Final Integrated Plan, HCVS Order EA-13-109 for Limerick
Generating Station
Revision 0,
11/14/2018
OP-LG-102-106
OPERATOR RESPONSE TIME PROGRAM AT LIMERICK
STATION
Revision 11
T-101 Common
RPV Control
Revision 026
T-102 Common
Primary Containment Control
Revision 027
T-103 Common
Secondary Containment Control
Revision 024
T-300
FLEX Pump Setup at Spray Pond
Revision 004
T-301 U1 / U2
RPV Injection From Spray Pond
Revisions
005 / 007
T-341 U1 / U2
PRIMARY CONTAINMENT VENTING VIA HARDENED
CONTAINMENT VENT SYSTEM
Revisions
001 / 002
Self-Assessments AR 04314889-04
HCVS compliance Pre-NRC Inspection
05/19/2020