GO2-11-030, Response to Request for Additional Information License Renewal Application to Support RAI 3.1.2.3.1-2: Difference between revisions

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{{#Wiki_filter:Sudesh K. Gambhir ENERGY '                                                        Vice President, Engineering P.O. Box 968, Mail Drop PE04 NORTHW EST                                                        Richland, WA 99352-0968 Ph. 509-377-8313 F. 509-377-2354 sgam bhir@energy-northwest.com January 28, 2011 G02-11-030 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001
{{#Wiki_filter:Sudesh K. Gambhir Vice President, Engineering ENERGY '
P.O. Box 968, Mail Drop PE04 Richland, WA 99352-0968 NORTHW EST Ph. 509-377-8313 F. 509-377-2354 sgam bhir@energy-northwest.com January 28, 2011 G02-11-030 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001


==Subject:==
==Subject:==
Line 29: Line 30:


==Dear Sir or Madam:==
==Dear Sir or Madam:==
By Reference 1, Energy Northwest requested the renewal of the Columbia Generating Station (Columbia) operating license. Via Reference 2, the Nuclear Regulatory Commission (NRC) requested additional information related to the Energy Northwest submittal.
By Reference 1, Energy Northwest requested the renewal of the Columbia Generating Station (Columbia) operating license. Via Reference 2, the Nuclear Regulatory Commission (NRC) requested additional information related to the Energy Northwest submittal.
Based on discussions with the NRC staff, Energy Northwest is providing additional information to support the response to RAI 3.1.2.3.1-2 provided in Reference 3.
Based on discussions with the NRC staff, Energy Northwest is providing additional information to support the response to RAI 3.1.2.3.1-2 provided in Reference 3.
Line 42: Line 42:


==Enclosure:==
==Enclosure:==
License Renewal Application Amendment 27 cc:   NRC Region IV Administrator NRC NRR Project Manager NRC Senior Resident Inspector/988C EFSEC Manager RN Sherman - BPA/1399 WA Horin - Winston & Strawn AD Cunanan - NRC NRR (w/a)
License Renewal Application Amendment 27 cc:
NRC Region IV Administrator NRC NRR Project Manager NRC Senior Resident Inspector/988C EFSEC Manager RN Sherman - BPA/1399 WA Horin - Winston & Strawn AD Cunanan - NRC NRR (w/a)
BE Holian - NRC NRR RR Cowley - WDOH
BE Holian - NRC NRR RR Cowley - WDOH


Line 50: Line 51:
The BG and BM welds are managed as part of the RPV shell (shell Rings) in Table 3.1.2-1 row 17 through 23 as a part of the reactor pressure vessel. In order to clarify this further, Table 3.1.2-1 is revised to add plant specific row 20a for welds BG and BM.
The BG and BM welds are managed as part of the RPV shell (shell Rings) in Table 3.1.2-1 row 17 through 23 as a part of the reactor pressure vessel. In order to clarify this further, Table 3.1.2-1 is revised to add plant specific row 20a for welds BG and BM.
A plant specific note K is added to clarify that the ISI program will continue to manage the specific indications in RPV shell welds BG and BM. The amended table is provided in the enclosure.
A plant specific note K is added to clarify that the ISI program will continue to manage the specific indications in RPV shell welds BG and BM. The amended table is provided in the enclosure.
Energy Northwest is required by 10CFR50.55a to meet the requirements of the ASME Boiler and Pressure Vessel Code for the Inservice Inspection Program (ISI) and disposition all indications per ASME Section XI at Columbia Generating Station. This requirement is reinforced by Table A-1, Item 33, stating that the ISI Program is an existing program that will be continued for the period of extended operation (PEO).
Energy Northwest is required by 1 OCFR50.55a to meet the requirements of the ASME Boiler and Pressure Vessel Code for the Inservice Inspection Program (ISI) and disposition all indications per ASME Section XI at Columbia Generating Station. This requirement is reinforced by Table A-1, Item 33, stating that the ISI Program is an existing program that will be continued for the period of extended operation (PEO).
Therefore, a separate commitment to perform the augmented inspections required by the ASME code and outlined in LRA section 4.7.1 is not necessary.
Therefore, a separate commitment to perform the augmented inspections required by the ASME code and outlined in LRA section 4.7.1 is not necessary.
LRA Tables 3.1.2-1 and 3.1.2-3 line items that credit the ISI Program for managing "Cracking - Flaw Growth" in the components have a Generic Note H. These line items are referring to postulated crack conditions.
LRA Tables 3.1.2-1 and 3.1.2-3 line items that credit the ISI Program for managing "Cracking - Flaw Growth" in the components have a Generic Note H. These line items are referring to postulated crack conditions.
To date the only indications exceeding ASME XI acceptance criteria found at Columbia are the BM and BG reactor vessel weld indications discussed in LRA section 4.7.1. As no other indications in excess of the ASME XI acceptance criteria have been identified, no other evaluations have been required.
To date the only indications exceeding ASME XI acceptance criteria found at Columbia are the BM and BG reactor vessel weld indications discussed in LRA section 4.7.1. As no other indications in excess of the ASME XI acceptance criteria have been identified, no other evaluations have been required.


RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION LICENSE RENEWAL APPLICATION Enclosure Page 1 of 1 License Renewal Application Amendment 27 Section No.       Page No. RAI Response Table 3.1.2-1     3.1-31     3.1.2.3.1-2 Insert Line Item Table 3.1.2-1     3 1-31a   3.1.2.3.1-2 New Line Item 20a Generic enserinNotes Iotem 3.1-115   3.1.2.3.1-2 Insert Line Item Generic Notes     3.1-115a   3.1.2.3.1-2 Line Item K
RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION LICENSE RENEWAL APPLICATION Enclosure Page 1 of 1 License Renewal Application Amendment 27 Section No.
Page No.
RAI Response Table 3.1.2-1 3.1-31 3.1.2.3.1-2 Insert Line Item Table 3.1.2-1 3 1-31a 3.1.2.3.1-2 New Line Item 20a Generic Notes enserin Iotem 3.1-115 3.1.2.3.1-2 Insert Line Item Generic Notes 3.1-115a 3.1.2.3.1-2 Line Item K


Columbia Generating Station License Renewal Application Technical Information Table 3.1.2-1 Aging Management Review Results - Reactor Pressure Vessel Row     Component       Intended       Material   Environment Aging Effect Requiring   AgIng Management TNUREG-1801     Table 1   Notes No.         Type     Function(s)                                                           Program         Volume 2       Item Management                               Item RPVRPV'hell Shell  Pressure     Steel w. SS   Reactor Reco 15       (Closure     Peure         Sladding       Coolant         Loss of material BWR Water Chemistry     IV.A1-8     3.1.1-14     A Flange)     Boundary       Cladding     (Internal)
Columbia Generating Station License Renewal Application Technical Information Table 3.1.2-1 Aging Management Review Results - Reactor Pressure Vessel Aging Effect TNUREG-Row Component Intended Material Environment Requiring AgIng Management 1801 Table 1 Notes No.
RPV Shell     Pressure     Steel w. S   Air-indoor                                                                         G 16       (Closure     Boundary       Cladding   uncontrolled             None               None             N/A         N/A     0101 Flange)                               (External)
Type Function(s)
Reactor           Cracking 17                   Pressure     Steel w. S     coolant                         BWR Water Chemistry     IV.C1-1   3.1.1-48     C 17RPV(Shell Shell Rings) boundary       Cladding   (Internal)                                                                         0103 Reactor RPV Shell     Pressure     Steel w. SS   Coolant             Cracking -                                                   C 18   (Shell Rings)   Boundary       Cladding     (Internal)           SCC/IGA       Inservice Inspection   IV.C1-1     3.1.1-48   0103 RPV Shell     Pressure     Steel w. SS   Reactor 3.1.1-02    A 19   (Shell           Pressury       Cladding     Coolant             Cracking -           TLAA           IV.A1-7 (Shell Rings)   Boundary       Cladding     (Internal)             Fatigue RPV Shell 20            Pressure     Steel w.SS     Reactor Coolant     Cracking - Flaw 20   (Shell Rings)   Boundary       Cladding     (Internal)             Growth     Inservice Inspection     N/A         N/A       H RPV Shell     Pressure     Steel w. SS   Reactor                           Chemistry Program 21                                                 Coolant (Internal)      Loss of material     Effectiveness Inspection        IV.A1-8     3.1.1-14     A (Shell Rings)   Boundary       Cladding Insert A from                                                            Reactor RPV   Shell   Pressure     Steel w. SS 3.1-31a      22         Shell       Pressury     Cladding     Coolant         Loss of material BWR Water Chemistry     IV.A1-8   3.1.1-14     A 2(Shell Rings)   Boundary       Cladding     (Internal)
Program Volume 2 Item Management Item RPV Shell Reactor RPV'hell Pressure Steel w. SS Reco 15 (Closure Peure Sladding Coolant Loss of material BWR Water Chemistry IV.A1-8 3.1.1-14 A
Aging Management Review Results                                   Page 3.1,-31
Flange)
Boundary Cladding (Internal)
RPV Shell Pressure Steel w. S Air-indoor G
16 (Closure Boundary Cladding uncontrolled None None N/A N/A 0101 Flange)
(External)
Reactor Cracking 17 RPV Shell Pressure Steel w. S coolant BWR Water Chemistry IV.C1-1 3.1.1-48 C
17 (Shell Rings) boundary Cladding (Internal) 0103 Reactor RPV Shell Pressure Steel w. SS Coolant Cracking -
C 18 (Shell Rings)
Boundary Cladding (Internal)
SCC/IGA Inservice Inspection IV.C1-1 3.1.1-48 0103 RPV Shell Pressure Steel w. SS Reactor 19 (Shell Pressury Cladding Coolant Cracking -
TLAA IV.A1-7 3.1.1-02 A
(Shell Rings)
Boundary Cladding (Internal)
Fatigue 20 RPV Shell Pressure Steel w. SS Reactor Coolant Cracking - Flaw 20 (Shell Rings)
Boundary Cladding (Internal)
Growth Inservice Inspection N/A N/A H
RPV Shell Pressure Steel w. SS Reactor Chemistry Program 21 Coolant Loss of material Effectiveness IV.A1-8 3.1.1-14 A
(Shell Rings)
Boundary Cladding (Internal)
Inspection RPV Shell Pressure Steel w. SS Reactor 22 Shell Pressury Cladding Coolant Loss of material BWR Water Chemistry IV.A1-8 3.1.1-14 A
2 (Shell Rings)
Boundary Cladding (Internal)
Insert A from 3.1-31a Aging Management Review Results Page 3.1,-31


Columbia Generating Station License Renewal Application Technical Information Insert A to Page 3.1-31 Aging Management Review Results Page 3.1-31 a             Amendment 27
Columbia Generating Station License Renewal Application Technical Information Insert A to Page 3.1-31 Aging Management Review Results Page 3.1-31 a Amendment 27


Columbia Generating Station License Renewal Application Technical Information Generic Notes:
Columbia Generating Station License Renewal Application Technical Information Generic Notes:
A     Consistent with NUREG-1801 item for component, material, environment, and aging effect. AMP is consistent with NUREG-1801 AMP.
A Consistent with NUREG-1801 item for component, material, environment, and aging effect. AMP is consistent with NUREG-1801 AMP.
B     Consistent with NUREG-1 801 item for component, material, environment, and aging effect. AMP takes some exceptions to NUREG-1801 AMP.
B Consistent with NUREG-1 801 item for component, material, environment, and aging effect. AMP takes some exceptions to NUREG-1801 AMP.
C     Component is different, but consistent with NUREG-1 801 item for material, environment, and aging effect. AMP is consistent with NUREG-1801 AMP.
C Component is different, but consistent with NUREG-1 801 item for material, environment, and aging effect. AMP is consistent with NUREG-1801 AMP.
D     Component is different, but consistent with NUREG-1 801 item for material, environment, and aging effect. AMP takes some exceptions to NUREG-1 801 AMP.
D Component is different, but consistent with NUREG-1 801 item for material, environment, and aging effect. AMP takes some exceptions to NUREG-1 801 AMP.
E     Consistent with NUREG-1 801 item for material, environment, and aging effect, but a different aging management program is credited or NUREG-1801 identifies a plant-specific aging management program.
E Consistent with NUREG-1 801 item for material, environment, and aging effect, but a different aging management program is credited or NUREG-1801 identifies a plant-specific aging management program.
F     Material not in NUREG-1 801 for this component.
F Material not in NUREG-1 801 for this component.
G     Environment not in NUREG-1 801 for this component and material.
G Environment not in NUREG-1 801 for this component and material.
H     Aging effect not in NUREG-1 801 for this component, material and environment combination.
H Aging effect not in NUREG-1 801 for this component, material and environment combination.
I   Aging effect in NUREG-1 801 for this component, material and environment combination is not applicable.
I Aging effect in NUREG-1 801 for this component, material and environment combination is not applicable.
J     Neither the component nor the material and environment combination is evaluated in NUREG-1 801.
J Neither the component nor the material and environment combination is evaluated in NUREG-1 801.
Insert Afrom 3.1-115a Ie,      429ia1y O
Insert Afrom 3.1-115a Aging Management Review Results Page 3.1-115 Ie, 29ia1y 4O j~menment27
Aging Management Review Results                                 Page 3.1-115 j~menment27
* 1 Columbia Generating Station License Renewal Application Technical Information Insert A to Page 3.1-115 Generic Notes:
 
K TAs described in LRA Section 4.7.1 the ISI program will continue to manage the specific indications in welds BG and BM Aging Management Review Results Page 3.1-115a Amendment 27 Aging Management Review Results Page 3.1-115a Amendment 27}}
                                                                                                                                                *1 Columbia Generating Station License Renewal Application Technical Information Insert A to Page 3.1-115 Generic Notes:                                                                                                     BG and BM 4.7.1 the ISI program will continue to manage the specific indications in welds K TAs described in LRA  Section Amendment 2727 Amendment Page 3.1-115a Page 3.1-115a Results Management Review Aging Management Aging            Review Results}}

Latest revision as of 00:13, 14 January 2025

Response to Request for Additional Information License Renewal Application to Support RAI 3.1.2.3.1-2
ML110320538
Person / Time
Site: Columbia Energy Northwest icon.png
Issue date: 01/28/2011
From: Gambhir S
Energy Northwest
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
GO2-11-030
Download: ML110320538 (8)
v • d • e


Text

Sudesh K. Gambhir Vice President, Engineering ENERGY '

P.O. Box 968, Mail Drop PE04 Richland, WA 99352-0968 NORTHW EST Ph. 509-377-8313 F. 509-377-2354 sgam bhir@energy-northwest.com January 28, 2011 G02-11-030 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001

Subject:

COLUMBIA GENERATING STATION, DOCKET NO. 50-397 RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION LICENSE RENEWAL APPLICATION

References:

1) Letter, G02-10-11, dated January 19, 2010, WS Oxenford (Energy Northwest) to NRC, "License Renewal Application"
2) Letter dated September 16, 2010, NRC to SK Gambhir (Energy Northwest), "Request for Additional Information for the Review of the Columbia Generating Station, License Renewal Application," (ADAMS Accession No. ML102450727)
3) Letter dated December 21, 2010, SK Gambhir (Energy Northwest) to NRC, "Columbia Generating Station, Docket No. 50-397 Response to Request for Additional Information License Renewal Application" (ADAMS Accession No. MLI103620326)

Dear Sir or Madam:

By Reference 1, Energy Northwest requested the renewal of the Columbia Generating Station (Columbia) operating license. Via Reference 2, the Nuclear Regulatory Commission (NRC) requested additional information related to the Energy Northwest submittal.

Based on discussions with the NRC staff, Energy Northwest is providing additional information to support the response to RAI 3.1.2.3.1-2 provided in Reference 3.

No new commitments are included in this response. Amendment 27 to the License Renewal Application is provided in the enclosure to this letter.

If you have any questions or require additional information, please contact Abbas Mostala at (509) 377-4197.

RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION LICENSE RENEWAL APPLICATION Page 2 of 2 I declare under penalty of perjury that the foregoing is true and correct. Executed on the date of this letter.

RspectfuIly, K Gambhir Vice President, Engineering

Attachment:

Supplemental Information

Enclosure:

License Renewal Application Amendment 27 cc:

NRC Region IV Administrator NRC NRR Project Manager NRC Senior Resident Inspector/988C EFSEC Manager RN Sherman - BPA/1399 WA Horin - Winston & Strawn AD Cunanan - NRC NRR (w/a)

BE Holian - NRC NRR RR Cowley - WDOH

RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION LICENSE RENEWAL APPLICATION Attachment Page 1 of 1 SUPPLEMENTAL INFORMATION Supplemental information for RAI 3.1.2.3.1-2:

This supplement adds more detail regarding aging management of the reactor vessel BG and BM welds and the two indications discussed in LRA section 4.7.1.

For note H, "Cracking - Flaw Growth" means that postulated flaws are considered to exist that are below the ASME code requirement for evaluation. Flaws that are being managed through TLAA are identified as separate rows in the Tables 3.1.2-1 and 3.1.2-3.

The BG and BM welds are managed as part of the RPV shell (shell Rings) in Table 3.1.2-1 row 17 through 23 as a part of the reactor pressure vessel. In order to clarify this further, Table 3.1.2-1 is revised to add plant specific row 20a for welds BG and BM.

A plant specific note K is added to clarify that the ISI program will continue to manage the specific indications in RPV shell welds BG and BM. The amended table is provided in the enclosure.

Energy Northwest is required by 1 OCFR50.55a to meet the requirements of the ASME Boiler and Pressure Vessel Code for the Inservice Inspection Program (ISI) and disposition all indications per ASME Section XI at Columbia Generating Station. This requirement is reinforced by Table A-1, Item 33, stating that the ISI Program is an existing program that will be continued for the period of extended operation (PEO).

Therefore, a separate commitment to perform the augmented inspections required by the ASME code and outlined in LRA section 4.7.1 is not necessary.

LRA Tables 3.1.2-1 and 3.1.2-3 line items that credit the ISI Program for managing "Cracking - Flaw Growth" in the components have a Generic Note H. These line items are referring to postulated crack conditions.

To date the only indications exceeding ASME XI acceptance criteria found at Columbia are the BM and BG reactor vessel weld indications discussed in LRA section 4.7.1. As no other indications in excess of the ASME XI acceptance criteria have been identified, no other evaluations have been required.

RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION LICENSE RENEWAL APPLICATION Enclosure Page 1 of 1 License Renewal Application Amendment 27 Section No.

Page No.

RAI Response Table 3.1.2-1 3.1-31 3.1.2.3.1-2 Insert Line Item Table 3.1.2-1 3 1-31a 3.1.2.3.1-2 New Line Item 20a Generic Notes enserin Iotem 3.1-115 3.1.2.3.1-2 Insert Line Item Generic Notes 3.1-115a 3.1.2.3.1-2 Line Item K

Columbia Generating Station License Renewal Application Technical Information Table 3.1.2-1 Aging Management Review Results - Reactor Pressure Vessel Aging Effect TNUREG-Row Component Intended Material Environment Requiring AgIng Management 1801 Table 1 Notes No.

Type Function(s)

Program Volume 2 Item Management Item RPV Shell Reactor RPV'hell Pressure Steel w. SS Reco 15 (Closure Peure Sladding Coolant Loss of material BWR Water Chemistry IV.A1-8 3.1.1-14 A

Flange)

Boundary Cladding (Internal)

RPV Shell Pressure Steel w. S Air-indoor G

16 (Closure Boundary Cladding uncontrolled None None N/A N/A 0101 Flange)

(External)

Reactor Cracking 17 RPV Shell Pressure Steel w. S coolant BWR Water Chemistry IV.C1-1 3.1.1-48 C

17 (Shell Rings) boundary Cladding (Internal) 0103 Reactor RPV Shell Pressure Steel w. SS Coolant Cracking -

C 18 (Shell Rings)

Boundary Cladding (Internal)

SCC/IGA Inservice Inspection IV.C1-1 3.1.1-48 0103 RPV Shell Pressure Steel w. SS Reactor 19 (Shell Pressury Cladding Coolant Cracking -

TLAA IV.A1-7 3.1.1-02 A

(Shell Rings)

Boundary Cladding (Internal)

Fatigue 20 RPV Shell Pressure Steel w. SS Reactor Coolant Cracking - Flaw 20 (Shell Rings)

Boundary Cladding (Internal)

Growth Inservice Inspection N/A N/A H

RPV Shell Pressure Steel w. SS Reactor Chemistry Program 21 Coolant Loss of material Effectiveness IV.A1-8 3.1.1-14 A

(Shell Rings)

Boundary Cladding (Internal)

Inspection RPV Shell Pressure Steel w. SS Reactor 22 Shell Pressury Cladding Coolant Loss of material BWR Water Chemistry IV.A1-8 3.1.1-14 A

2 (Shell Rings)

Boundary Cladding (Internal)

Insert A from 3.1-31a Aging Management Review Results Page 3.1,-31

Columbia Generating Station License Renewal Application Technical Information Insert A to Page 3.1-31 Aging Management Review Results Page 3.1-31 a Amendment 27

Columbia Generating Station License Renewal Application Technical Information Generic Notes:

A Consistent with NUREG-1801 item for component, material, environment, and aging effect. AMP is consistent with NUREG-1801 AMP.

B Consistent with NUREG-1 801 item for component, material, environment, and aging effect. AMP takes some exceptions to NUREG-1801 AMP.

C Component is different, but consistent with NUREG-1 801 item for material, environment, and aging effect. AMP is consistent with NUREG-1801 AMP.

D Component is different, but consistent with NUREG-1 801 item for material, environment, and aging effect. AMP takes some exceptions to NUREG-1 801 AMP.

E Consistent with NUREG-1 801 item for material, environment, and aging effect, but a different aging management program is credited or NUREG-1801 identifies a plant-specific aging management program.

F Material not in NUREG-1 801 for this component.

G Environment not in NUREG-1 801 for this component and material.

H Aging effect not in NUREG-1 801 for this component, material and environment combination.

I Aging effect in NUREG-1 801 for this component, material and environment combination is not applicable.

J Neither the component nor the material and environment combination is evaluated in NUREG-1 801.

Insert Afrom 3.1-115a Aging Management Review Results Page 3.1-115 Ie, 29ia1y 4O j~menment27

K TAs described in LRA Section 4.7.1 the ISI program will continue to manage the specific indications in welds BG and BM Aging Management Review Results Page 3.1-115a Amendment 27 Aging Management Review Results Page 3.1-115a Amendment 27

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