ML20160A136
| ML20160A136 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 06/08/2020 |
| From: | Mel Gray Engineering Region 1 Branch 1 |
| To: | Stoddard D Dominion Energy |
| Gray M | |
| References | |
| IR 2020013 | |
| Download: ML20160A136 (7) | |
See also: IR 05000336/2020013
Text
June 8, 2020
Mr. Daniel G. Stoddard
Senior Vice President and Chief Nuclear Officer
Dominion Energy, Inc.
Innsbrook Technical Center
5000 Dominion Blvd.
Glen Allen, VA 23060-6711
SUBJECT: MILLSTONE POWER STATION, UNITS 2 AND 3 - REQUEST FOR
INFORMATION TO SUPPORT TRIENNIAL BASELINE DESIGN-BASIS
CAPABILITY OF POWER-OPERATED VALVES INSPECTION; INSPECTION
REPORT 05000336/2020013 AND 05000423/2020013
Dear Mr. Stoddard:
The purpose of this letter is to notify you that the U.S. Nuclear Regulatory Commission (NRC)
Region I staff will conduct a team inspection at your Millstone Power Station, Units 2 and 3.
Mr. Jeff Kulp, a Senior Reactor Inspector from the NRCs Region I Office, will lead the
inspection team. The inspection will be conducted in accordance with Inspection Procedure 71111.21N.02, Design-Basis Capability of Power-Operated Valves Under 10 CFR 50.55a
Requirements, dated July 26, 2019 (ADAMS Accession No. ML19067A240).
The inspection will assess the reliability, functional capability, and design bases of risk-important
power-operated valves (POVs) subject to the requirements in Title 10 of the Code of Federal
Regulations (10 CFR) 50.55a, and Appendix A and B. The inspectors will select a sample of
POVs based on risk insights, safety significance, and operating margin.
During a telephone conversation on June 5, 2020, with Mr. Landry Djoukam, Licensing
Engineer, we confirmed arrangements with your staff for the two-week onsite inspection which
will take place during the weeks of July 13 and July 27, 2020. Mr. Kulp will continue to make
arrangements with your staff via remote discussions verses a typical site visit.
The enclosure to this letter requests information from your Millstone staff regarding specific
POVs selected by the NRC for inspection. Insofar as possible, this information should be
provided electronically to the lead inspector at the NRC Region I Office by July 6, 2020, about a
week prior to the beginning of the on-site inspection. Additional documents may be requested
during the team preparation week. The inspectors will minimize your administrative burden by
specifically identifying only those documents required for the inspection.
If there are any questions about the inspection or the material requested in the enclosure,
please contact the lead inspector at 610-337-5348 or via e-mail at Jeffrey.Kulp@nrc.gov.
D. Stoddard 2
This letter does not contain new or amended information collection requirements subject to the
Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq.). Existing information collection
requirements were approved by the Office of Management and Budget, Control Number 3150-
0011. The NRC may not conduct or sponsor, and a person is not required to respond to, a
request for information or an information collection requirement unless the requesting document
displays a currently valid Office of Management and Budget Control Number.
This letter and its enclosure 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 10 CFR 2.390, Public Inspections, Exemptions, Requests for Withholding.
Thank you in advance for supporting this engineering inspection.
Sincerely,
X /RA/
Signed by: Melvin K. Gray
Mel Gray, Chief
Engineering Branch 1
Division of Reactor Safety
Docket Nos. 05000336 and 05000423
License Nos. DPR-65 and NPF-49
Enclosure:
Document Request for Power-Operated
Valves Inspection
cc: Distribution via ListServ
Non-Sensitive Publicly Available
SUNSI Review
Sensitive Non-Publicly Available
OFFICE RI/DRS RI/DRS
NAME JKulp MGray
DATE 6/8/20 6/8/20
DOCUMENT REQUEST FOR POWER-OPERATED VALVES INSPECTION
Inspection Report: 05000336/2020013 and 05000423/2020013
Onsite Inspection Dates: July 13 through July 17, 2020; and
July 27 through July 31, 2020
Inspection Procedure: Inspection Procedure 71111.21N.02, Design-Basis Capability of
Power-Operated Valves Under 10 CFR 50.55a Requirements
Lead Inspector: Jeff Kulp, Senior Reactor Inspector
610-337-5348
Jeffrey.Kulp@nrc.gov
A. General Information
1) Preventative Maintenance Program Document {IP section 03.a.2}
2) Current Inservice test (IST) plan for current interval {IP section 03.a.2}
3) 10 CFR Part 50, Appendix J Program document
4) Site activity schedule for the onsite weeks of the inspection- indicate if any valve
testing or maintenance is planned for valves listed below {IP section 03.c.4, 03.d}
5) Corrective Action Program (CAP) document and CAP implementing procedures
{IP section 03.d.1}
6) Procedure for addressing issues in 10 CFR Part 21 notifications {IP section 03.d.5}
7) Station response to GL 88-14
8) Station response to RIS 2000-03 and associated CRs written or evaluations performed
by the station, if any
9) Current list of operator workarounds {IP section 03.b.2}
10) Technical Specifications
11) A word-searchable Update Final Safety Analysis Report. If not available in a single
file, please ensure a collective table of contents is provided.
12) Site (and corporate if applicable) procedures associated with implementation of the
MOV program required by 10 CFR 50.55a(b)(3)(ii) and/or ASME OM Code Mandatory
Appendix III; and site (corporate) procedure for AOV program.
13) List of corrective action documents related to the MOV and AOV programs since
June 1, 2015 (include document No., title/short description, date).
14) List of significant modifications, repairs, or replacement of safety-related POVs
completed since June 1, 2015, including date completed (include document No., title,
date completed).
15) Any self-assessments or quality assurance type assessments of the MOV/AOV
programs (performed since June 1, 2015)
16) List of all Emergency Operating Procedures
17) List of Abnormal Operating Procedures
18) Identify the edition of the ASME Operation and Maintenance of Nuclear Power Plants
(OM Code) that is the Code of Record for the current 10-year Inservice Test Program
interval, as well as any standards to which the station has committed with respect to
POV capability and testing
Enclosure
DOCUMENT REQUEST FOR POWER-OPERATED VALVES INSPECTION
B. Motor Operated Valves (MOV)
For the following MOVs, please provide the information listed below:
[M1] 2-FW-44, Aux Feedwater Pump Discharge Header Cross-Tie Valve
[M2] 3SWP*MOV102D, D Service Water Discharge Valve
[M3] 3SIL*MV8804A, Low Pressure Safety Inject To Charging Pump Suction
[M4] 3SWP*MOV50A, TR "A" Service Water Supply Reactor Plant Component Cooling
Water
1) Procurement and design specifications and associated Certificate of Conformance for
the valve and actuator {IP section 03.a.1}
2) Associated system design criteria document {IP section 03.a.1}
3) Associated system flow diagrams
4) Last completed periodic verification / diagnostic test (if performed)- full WO package
{IP section 03.a.2, 03.c.2, 03.d.6}
5) JOG program classification evaluation {IP section 03.a.2}
6) Last completed inservice tests (ISTs) completed to satisfy requirements of ASME OM
Code, including any data sheets that recorded the collected test results (if easier,
provide full WO) {IP sections 03.a.2, 03.a.3, 03.c.1, 03.c.2}
7) Last completed technical specification surveillance testing, if any required and not
done as part of above testing {IP section 03.a.2}
8) EQ file, including EQ test reports, for associated valve/actuator, if applicable {IP
section 03.a.2}
9) Preventive Maintenance (PM) work orders (list of PMs that are performed)- provide list
only {IP section 03.a.2, 03.d.2, 03.d.4}
10) Any PM templates used for the valve/actuator {IP section 03.a.2, 03.d.2, 03.d.4}
11) Vendor manual(s) covering installation, operation, and maintenance (for valve and
actuator) {IP section 03.a.2, 03.b.1, 03.d.2, 03.d.4}
12) Component drawings (valve and actuator) {IP section 03.b.1}
13) Operations procedures that utilize the listed MOV (EOPs/AOPs/NOPs/ARGs, etc) {IP
section 03.b.1}
14) Design Basis Review, Required Thrust/Torque, and Actuator Capability Assessment
evaluations applicable to the listed MOV. Also include associated evaluations of the
following parameters, if maintained separate from the above analyses. {IP section
03.b.1, 03.b.2}:
- minimum expected voltage at MOV motor terminals (transient and steady state)/
ETAP analyses
- ambient room temperature
- system hydraulic calculations
- Pressure Locking/Thermal Binding evaluations (if applicable)
- Valve weak link/ seismic weak link analysis
- thermal overload sizing evaluation
15) Control circuit diagram, including limit switch settings {IP section 03.b.2}
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DOCUMENT REQUEST FOR POWER-OPERATED VALVES INSPECTION
16) List of permanent modifications performed on listed valve/actuator (as far back as
electronic records indicate)- provide EC number and title or brief description {IP
section 03.b.2}
17) List of CRs associated with valve/actuator (last 5 years) {IP section 03.d.1}
18) Corrective Maintenance work orders performed associated with components (last 5
years) -provide full WO, including any post maintenance testing {IP section 03.d.1,
03.d.4}
19) Associated System Health Report (last completed) {IP section 03.d.1}
20) Provide Maintenance Rule performance criteria which would cause the system or
component to be moved from (a)(2) status to (a)(1) status {IP section 03.d.2}
C. Air Operated Valves (AOV) and Solenoid Operated Valves (SOVs)
For the following AOVs and SOVs, please provide the information listed below:
[A1] 2-FW-43A, #1 Steam Generator Aux Feedwater Regulating Valve
[A2] 2-MS-190B, #2 Steam Generator Atmospheric Dump Control Valve
[A3] 3FWS*CTV41C, Steam Generator Feedwater Stop Valve
[A4] 2-SI-657, Shutdown Cooling Heat Exchanger Flow Control Valve
[S1] 2-RC-404, Pressurizer Power Operated Relief Valve
[S2] 3RCS*PCV455A, Pressurizer Pressure Relief Valve
1) Procurement and design specifications and associated Certificate of Conformance for
the valve, actuator, and accessories {IP section 03.a.1}
2) Valve/actuator information from the stations Master Equipment List (MEL)
3) Associated system design criteria document {IP section 03.a.1}
4) Associated system flow diagrams
5) Full Work Order Package for last completed diagnostic test (if performed) {IP section
03.a.2, 03.c.2, 03.d.6}
6) Include engineering evaluation(s) of results, including justifications for the
parameters/assumptions {IP section 03.b.2}
7) Include AOV datasheets, if not already part of WO package
8) Last completed inservice (IST) tests done to satisfy requirements of ASME OM Code,
including any data sheets that recorded the collected test results (if easier, provide full
WO) {IP sections 03.a.2, 03.a.3, 03.c.1, 03.c.2}
9) Last completed technical specification surveillance testing, if any required and not
done as part of above testing {IP section 03.a.2}
10) EQ file, including EQ test reports, for associated valve/actuator, if applicable {IP
section 03.a.2}
11) Preventive Maintenance (PM) work orders (list of PMs that are performed) - provide list
only {IP section 03.a.2, 03.d.2, 03.d.4}
12) Any PM templates used for the valve/actuator/accessories {IP section 03.a.2, 03.d.2,
03.d.4}
13) Vendor manual(s) covering installation, operation, and maintenance (for valve,
actuator, and accessories) {IP section 03.a.2, 03.b.1, 03.d.2, 03.d.4}
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DOCUMENT REQUEST FOR POWER-OPERATED VALVES INSPECTION
14) Design Basis Review, if performed, and/or setpoint calculation and/or other
calculations/evaluations applicable to the listed AOV, associated with the following
parameters {IP section 03.b.1}:
- maximum expected differential pressure
- line pressure
- expected voltage at air supply/exhaust SOV terminals (transient and steady state)
- ambient room temperature
- system hydraulic calculations
- required thrust/torque
- valve factor
- diagnostic equipment uncertainty assumptions (if diagnostic testing is performed)
- air supply pressure, if valve has an air-to-operate safety or risk-significant function
- additional degradation or uncertainties
15) Component drawings (valve, actuator, and accessories) {IP section 03.b.1}
16) Operations procedures that utilize the listed AOV (EOPs/AOPs/NOPs/ARGs, etc.) {IP
section 03.b.1}
17) Control circuit diagram, including limit switch settings {IP section 03.b.2}
18) Actuator sizing evaluation (include sizing specifications to valve supplier if valve
vendor performed the sizing evaluation) {IP section 03.b.2}
19) Seismic/structural analysis, if available {IP section 03.b.2}
20) List of permanent modifications performed on listed valve/actuator (as far back as
electronic records indicate)- provide EC number and title or brief description {IP
section 03.b.2}
21) List of CRs associated with valve/actuator/accessories (last 5 years) {IP section
03.d.1}
22) Corrective Maintenance work orders performed associated with components (last 5
years) - provide full WO, including any post maintenance testing {IP section 03.d.1,
03.d.4}
23) Associated System Health Report (last completed) {IP section 03.d.1}
24) Provide Maintenance Rule performance criteria which would cause the system or
component to be moved from (a)(2) status to (a)(1) status {IP section 03.d.2}
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