IR 05000395/2020010

NRC Design Bases Assurance Inspection (Team) Report 05000395/2020010

ML20356A295
Person / Time
Site:	Summer
Issue date:	12/21/2020
From:	James Baptist NRC/RGN-II/DRS/EB1
To:	Lippard G Dominion Energy
References
IR 2020010
Download: ML20356A295 (14)

Text

December 21, 2020

SUBJECT:

VIRGIL C. SUMMER - DESIGN BASIS ASSURANCE INSPECTION (TEAMS)

INSPECTION REPORT 05000395/2020010

Dear Mr. Lippard III:

On November 19, 2020, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Virgil C. Summer and discussed the results of this inspection with you 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,

/RA/

James B. Baptist, Chief Engineering Br 1 Div of Reactor Safety Docket No. 05000395 License No. NPF-12

Enclosure:

As stated

Inspection Report

Docket Number: 05000395 License Number: NPF-12 Report Number: 05000395/2020010 Enterprise Identifier: I-2020-010-0047 Licensee: Dominion Energy Facility: Virgil C. Summer Location: Jenkinsville, SC Inspection Dates: October 26, 2020 to November 20, 2020 Inspectors: P. Braxton, Reactor Inspector J. Hamman, Reactor Inspector S. Ninh, Senior Project Engineer R. Patterson, Senior Reactor Inspector M. Riley, Reactor Inspector T. Su, Reactor Inspector Approved By: James B. Baptist, Chief Engineering Br 1 Div of Reactor Safety Enclosure

SUMMARY

The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting a design basis assurance inspection (teams) inspection at Virgil C.

Summer, 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.

Starting on March 20, 2020, in response to the National Emergency declared by the President of the United States on the public health risks of the coronavirus (COVID-19), inspectors were directed to begin telework. In addition, regional baseline inspections were evaluated to determine if all or portion of the objectives and requirements stated in the IP could be performed remotely. If the inspections could be performed remotely, they were conducted per the applicable IP. In some cases, portions of an IP were completed remotely and on site. The inspections documented below met the objectives and requirements for completion of the IP.

REACTOR SAFETY

===71111.21M - Design Bases Assurance Inspection (Teams) The inspectors evaluated the following components and listed applicable attributes, permanent modifications, and operating experience:

Design Review - Risk-Significant/Low Design Margin Components (IP Section 02.02) (4 Samples)

(1) 480V MCC (XMC1DA2Y)

• Compliance with Updated Final Safety Analysis (UFSAR), Technical Specifications (TS), and TS Bases

• Conformance with manufacturer instructions for installation, maintenance, and operation

• Material condition and configuration

• Environmental Conditions

• Design requirements (loading, short circuit analysis, etc.)

• Verification that System Health Reports accurately reflect current system conditions

• Protective device settings

• Circuit breaker preventive maintenance inspection and testing procedures

(2) 1A EDG and Support Systems

• Compliance with UFSAR, including applicable design and licensing basis requirements

• Material condition and configuration

• Maintenance effectiveness

• System health reports

• Surveillance test results

• Calculations verifying system design requirements (e.g., loading and fuel tank capacity)

(3) DC Battery Bus (1HA9B)

• Battery and bus material condition and configuration

• Battery and bus maintenance effectiveness

• System health reports

• Worked maintenance and surveillance test reviews

• Calculations verifying system design requirements

(4) MDEFW Pump (XPP-21A)

• Compliance with UFSAR, TS, and Design Basis Document (DBD)

• Material condition and configuration (e.g., visual inspection during a walkdown)

• Consistency between station documentation (e.g. procedures) and Vendor Specifications

• Operating, Abnormal and Emergency Procedures

• Training Manual and System Description

• Operator Critical Actions

• Maintenance effectiveness

• Component Health System reports, corrective maintenance records, and corrective action history

• Consistency between design bases calculations and test procedure acceptance criteria

• Surveillance Test results

• Operating Industry Experience Design Review - Large Early Release Frequency (LERFs) (IP Section 02.02) ===

(1) Steam Generator (SG) Power Operated Relief Valve (PORV) IPV-2000

• UFSAR, including applicable design and licensing basis requirements

• Material condition and configuration

• Maintenance effectiveness, including review of maintenance procedures

• Surveillance test results

• Review of related condition reports (CR)

• System review of the supporting instrument air system

• Verification that the Equipment Reliability (ER) tracking list accurately reflects current system configuration

Modification Review - Permanent Mods (IP Section 02.03) (4 Samples)

(1) 50883A - Safety Related Inverter Replacement

(2) 50567S - Major Revision - XVB3107A/B Closing Time Watchdog Permissive

(3) 70290C - Steam Generator Tube Rupture (SGTR) Enhancements

(4) 50933G - Component Cooling Heat Exchanger Service Water Return Throttle Valve Installation - B Train

Review of Operating Experience Issues (IP Section 02.06) (1 Sample)

(1) NRC Information Notice 2019-02, Emergency Diesel Generator Excitation System Diode Failures

INSPECTION RESULTS

No findings were identified.

EXIT MEETINGS AND DEBRIEFS

The inspectors verified no proprietary information was retained or documented in this report.

• On November 19, 2020, the inspectors presented the design basis assurance inspection (teams) inspection results to George Lippard III and other members of the licensee staff.

DOCUMENTS REVIEWED

Inspection Type Designation Description or Title Revision or

Procedure Date

71111.21M Calculations DC09610-056 Assessment of Instrument Error Flow Measurement in SW Rev. 2

Pump IST

0.13.10 Review of Skew Hilti Bolt Non-Conformance on Pipe Rev. 0

Support Anchors

DC0011A-012 Qualified Life of Rosemount 1153 Series A Transmitters Rev. 5

(Qual Key 309)

DC04330-085 Sizing of SW Throttle Valves Rev. 0

DC05220-083 MDEFW Pump Surveillance Test Requirements Rev. 2

DC05220-091 EF Hydraulic Analyses Rev. 3

DC06630-001 EDG Fuel Oil Consumption Rev. 14

DC08040-012 Protective Device Coordination Rev. 8

DC08050-002 Load Study of ESF 7.2KV and 480V Rev. 8

DC08200-001 ESF Degraded Voltage Logic and Settings Rev. 29

DC082220-010 1E Fault Current Study Rev. 6

DC08240-003 480V System Protection Rev. 4

DC08320-005 ESF Battery 1A & 1B Capacity Rev. 14

DC08320-005 ESF Battery 1A & 1B Capacity 10/16/2015

DC08320-010 Class 1E 125 Volt DC System Voltages & Voltage Drop Rev. 18

DC09310-066 Service Water from CC Heat Exchanger B Flow (IFT04490) Rev. 1

DC09610-001 Accuracy of Totalized Service Water System Flow Rev. 2

DC09610-048 IFE04460/04490 SW Scaling for CCW Heat Exchanger Rev. 3

Thermal Performance (GL 89-13)

EF-000-2 Piping: Emergency Feedwater Flow Control Valve 04/17/1987

SW002 Pipe Analysis SW002 Rev. 6.2

Sw008 SW008 Piping Analysis 10/14/2014

Corrective Action 17-02093, 17- Various Various

Documents 02586, 17-05464,

17-05877, 20-

2840, 16-00972,

17-05464,17-

05526,17-05530,

17-05588,17-

Inspection Type Designation Description or Title Revision or

Procedure Date

05877, 18-

208,18-

05853,19-00223,

19-04060,19-

222, 20-01075,

20-01115, 20-

01791, 20-02840,

20-03029, 14-

03039

17-04148, 18-

01032, 18-01033,

20-01681, 20-

2394

CR-19-02065, Various Various

CR-17-05376,

CR-17-05224,

CR-17-03153

Corrective Action 20-03588 The cover band assembly for the B MDEFW pump flow 11/02/2020

Documents control valve is loose and resting circumferentially around

Resulting from the valve body.

Inspection CR-20-03529 PM Not Generated Per Plant Procedure 10/26/2020

CR-20-03546 A computational error for dead weight associated with 10/28/2020

W6x15.5 (GA-W6) beams

CR-20-03591 There was no grout beneath the support (Hanger ID: 11/03/2020

EFH2007) for XVR03531-EF Air Supply Relief Valve for

IFV03531-EF

CR-20-03630 AGASTAT Catalog Pages Included in Error 11/05/2020

CR-20-03674 Discrepancy between UFSAR Table 8.3-3 Part A1 and 11/10/2020

Design Calculation DC08360-006

CR-20-03676 During extent of condition review for CR-20-03591, which 11/12/2020

identified base plate for support EFH2007 was missing

grout, it was identified that the condition was typical for 5

additional supports.

CR-20-03725 Discrepancy between UFSAR Table 8.3-3 Part A2 and 11/16/2020

Inspection Type Designation Description or Title Revision or

Procedure Date

Design Calculation DC08360-006

Drawings 321-085- Piping Support Rev. 0

EFH2007A

04-4461-SS- 200- 480V Load Centers Relay and Breaker Settings Rev 10

27

1MS-50-161 8X6 Body 80 Actuator 667-EWP Diaphragm Actuated 11

Control Valve

21-085- Piping Support, Rev. 0

EFH2007B

D-302-011 Main Steam Nuclear 41

Engineering 70290 Steam Generator Tube Rupture Procedure Enhancements Rev. D

Changes ECR 50933G CC HX SW Return Throttle Valve Installation - B Train Rev. 6

ECR50965M EF Flow Margin Improvement Rev. 5

Miscellaneous 0310-0025- Power & Rectifier Chassis Temperature Rise Test Results Rev. 0

MEMO-006

10CFR50.59 10CFR50.59 Review for ECR-70290 05/23/2012

Review

1MS-94B-0390 Vendor Manual- Model 4 Motor Control Center

Design Basis Diesel Generator Engine Support and Control Systems (DG) Rev. 15

Document

Design Basis Main Steam (MS) Rev. 12

Document

ECR 50733, Att. I Replace the Emergency Diesel Generator Excitation System Rev. 4

ECR 50933G - XVA43182B-SW Status Indication Discussion Rev. 3

Technical Work

Record -ES-104

Enhanced Design Emergency Feedwater System Rev. 17

Basis Document,

Health System Emergency Feedwater System Health Report 2nd Half-2019 03/13/2020

Report

Health System Emergency Feedwater System (EF) Health Report 1st Half- 08/12/2020

Reports 2020

Inspection Type Designation Description or Title Revision or

Procedure Date

RPM 2015624 XVB3107A Lockout Control Panel 10/29/2020

System Health Emergency Diesel Generator 2020 Period 1 08/12/2020

Report

Time Critical Steam Line Break Outside RB with Loss of Bus 1HA and 05/02/2018

Action Validation Offsite Power 05/02/18

Scenario Form

Time Critical Steam Generator Tube Rupture Dated 02/26/19 02/26/2019

Action Validation

Scenario Form S

VCSNS - DBD VCSNS - DBD 125 Volt DC Electrical System Rev. 6

25 Volt DC

Electrical System

Vendor Manual Bingham Emergency Feedwater Pump Rev. 5

Vendor Manual BNL Industries. Inc.: Operating and Maintenance Rev. 5

Number 1MS- Instructions for 3/4-inch. 1-inch, and 2-inch (reduced port )

94B-1425 Ball Valves

Vendor Manual Fisher Vee-Ball V150 Rotary Control Valves Rev. 0

Number 1MS-

94B-1870

Procedures STP-123.001 Service Water System Valve Lineup Verification Rev. 7

AOP-112.2 ARG-3, Steam Generator Tube Leak not Requiring SI Rev. 7

ARP-001-XCP- Main Control Board Rev. 7

605 Revision 7

EC-03 Processing Engineering Change Packages Rev. 6

EMP 280.004 Molded Case Circuit Breaker Testing Rev. 22

EMP 280.006 Molded Case Circuit Breaker and Controller Inspection and Rev. 8

Preventative Maintenance

EMP-115.029 Battery Main Distribution Panel Inspection Rev. 1

EMP-295.011 Motor Rotor Bar Check, Rev. 4

EOP-1.0 E-1, Reactor Trip or Safety Injection Rev. 0

EOP-3.0, E-2 Faulted Steam Generator Isolation Rev. 13

EOP-4.0 E-3, Steam Generator Tube Rupture Rev. 26

EOP-4.0 E-3, Steam Generator Tube Rupture Rev. 26

Inspection Type Designation Description or Title Revision or

Procedure Date

ES-0120 Operability or Functionality Recommendation Development Rev. 1

ICP-345.064 Functional Test and Replacement of Train A SW to EF Rev. 0

Cross Connect Time Delay Relays,

ICP-345.065 Functional Test and Replacement of Train B SW to EF Rev. 0

Cross Connect Time Delay Relays

ICP-400.004 Service Water from CC HX B FlowIFT04490 Rev. 9

MMP-300.013 Main Steam Power Relief Valve and Actuator Maintenance Rev. 12

Change A

MMP-300.022 General Air Actuator Diaphragm and O-Ring Replacement Rev. 7

Change C

MMP-300.033 Changing Oil in Pumps Equipped With TRICO OPTO- Rev. 8

MATIC oilers,

PTP-173.001 Backflushing Service Water side of Component Cooling Rev. 3

Heat Exchanger A(B),

SAP-0133 Design Control /Implementation and Interface Rev. 16

SAP-0999 Correction Action Program Rev. 19,

Change A

SAP-0999B CR Review Team (CRRT) Rev. 1.

Change D

SAP-0999C Management Review Team (MRT) Rev. 1,

Change G

SAP-0999E Corrective Action Review Board (CARB) Rev. 5

SAP-143 Preventive Maintenance Program Rev. 16,

Change B

SOP-211 Emergency Feedwater System Rev. 14

STP-0220.001A Motor Driven Emergency Feedwater Pump and Valve Test Rev. 2

STP-0220.008 Motor Driven Emergency Driven Feedwater Pump Full Flow Rev. 7

Test

STP-120.005A Motor Driven Emergency Feedwater Pump A Actuation Test Rev. 1

STP-121.002A Steam Generator PORV Operability Test Rev. 0

Change D

STP-223.003 Service Water Pump Performance Test Flow vs Differential Rev. 1

Pressure

Work Orders 1706308, Various Various

Inspection Type Designation Description or Title Revision or

Procedure Date

1711623,

1711906,

1716342,

1716679,

1717001,

1802065,

1808781,

1813048,

1817424,

1900454,

1903296,

1903353,

1903712,

1903717,

1904607,

1905905,

1910786,

1912131,

1913504,

1913702,

1917892,

1918061,

2000979,

2006228,

2008938,

2012520,

2012524,

2012525,

2015732

1706952-001, Various Various

1708804-001,

1712322-001,

1717581-001,

1717582-001,

Inspection Type Designation Description or Title Revision or

Procedure Date

1718241-001,

1800393-001,

1808401-001,

1809718-001,

1812287-001,

1815929-001,

20606-001,

1903132-001,

1904919-001,

1909684-001,

1911168-001,

1913117-001,

1913131-001,

1914543-001,

1915269-001,

1915269-002,

1916648-001,

2001053-001,

2004941-001,

2006059-001

1903851-001, Various Various

1903852-001,

1711884-001,

1718225-001,

1903133-001,

1903136-001,

0105321-001,

1611168-001,

1611168-002,

1710182-001,

1710182-002,

1900232-001

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