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| number = ML060950610
| number = ML060950610
| issue date = 03/22/2006
| issue date = 03/22/2006
| title = 2006/03/22-GALL AMP: XI.M29, Aboveground Steel Tanks (Audit Worksheet GALL Report AMP)
| title = GALL AMP: XI.M29, Aboveground Steel Tanks (Audit Worksheet GALL Report AMP)
| author name = Morgan M
| author name = Morgan M
| author affiliation = NRC/NRR/ADRO/DLR/RLRC
| author affiliation = NRC/NRR/ADRO/DLR/RLRC
Line 19: Line 19:


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=Text=
{{#Wiki_filter:XI.M29 Aboveground Steel Tanks 1 AUDIT W ORKSHEET  GALL R EPORT AMP PLANT: ______________________________
{{#Wiki_filter:AUDIT WORKSHEET GALL REPORT AMP PLANT: ______________________________
LRA AMP: __________________________
LRA AMP: __________________________                                                   REVIEWER: ______________________
R EVIEWER: ______________________
GALL AMP: XI.M29, Aboveground Steel Tanks                                             DATE: __________________________
GALL AMP: XI.M29, Aboveground Steel Tanks DATE: __________________________
Program             Auditable GALL Criteria                                           Documentation of Audit Finding Element Program             A. The program includes preventive measures to mitigate           Consistent with GALL AMP:      Yes  No Description        corrosion by protecting the external surface of steel tanks with   Document(s) used to confirm Criteria:
Program Element Auditable GALL Criteria Documentation of Audit Finding Program Description A. The program includes preventive measures to mitigate corrosion by protecting the external surface of steel tanks with paint or coatings in accordance with standard industry practice. The program also relies on periodic system walkdowns to monitor degradation of the protective paint or coating. However, for storage tanks supported on earthen or concrete foundations, corrosion may occur at inaccessible locations, such as the tank bottom. Accordingly, verification of the effectiveness of the program is to be performed to ensure that significant degradation in inaccessible locations is not occurring and the component intended function will be maintained during the extended period of operation. For reasons set forth below, an acceptable verification program consists of thickness measurement of the tank bottom surface. Consistent with GALL AMP:
paint or coatings in accordance with standard industry practice.
Yes  No Document(s) used to confirm Criteria:
The program also relies on periodic system walkdowns to monitor degradation of the protective paint or coating. However, for storage tanks supported on earthen or concrete foundations,   Comment:
Comment: 1. Scope of Program A. The program consists of (a) preventive measures to mitigate corrosion by protecting the external surfaces of carbon steel tanks protected with paint or coatings and Consistent with GALL AMP:
corrosion may occur at inaccessible locations, such as the tank bottom. Accordingly, verification of the effectiveness of the program is to be performed to ensure that significant degradation in inaccessible locations is not occurring and the component intended function will be maintained during the extended period of operation. For reasons set forth below, an acceptable verification program consists of thickness measurement of the tank bottom surface.
Yes  No Document(s) used to confirm Criteria:
: 1. Scope of         A. The program consists of (a) preventive measures to mitigate     Consistent with GALL AMP:      Yes  No Program            corrosion by protecting the external surfaces of carbon steel     Document(s) used to confirm Criteria:
Comment " B. (b) periodic system walkdowns to manage the effects of corrosion on the intended function of these tanks. Plant walkdowns cover the entire outer surface of the tank up to its surface in contact with soil or concrete. Consistent with GALL AMP:
tanks protected with paint or coatings and Comment B. (b) periodic system walkdowns to manage the effects of         Consistent with GALL AMP:      Yes  No corrosion on the intended function of these tanks. Plant           Document(s) used to confirm Criteria:
Yes  No Document(s) used to confirm Criteria:
walkdowns cover the entire outer surface of the tank up to its surface in contact with soil or concrete.
XI.M29 Aboveground Steel Tanks                                                      1


XI.M29 Aboveground Steel Tanks 2 Program Element Auditable GALL Criteria Documentation of Audit Finding Comment: 2. Preventive Actions A. In accordance with industry practice, tanks are coated with protective paint or coating to mitigate corrosion by protecting the external surface of the tank from environmental exposure. Sealant or caulking at the interface edge between the tank and concrete or earthen foundation mitigates corrosion of the bottom surface of the tank by preventing water and moisture from penetrating the interface, which would lead to corrosion of the bottom surface. Consistent with GALL AMP:
Program             Auditable GALL Criteria                                             Documentation of Audit Finding Element Comment:
Yes  No Document(s) used to confirm Criteria:
: 2. Preventive       A. In accordance with industry practice, tanks are coated with       Consistent with GALL AMP:      Yes  No Actions            protective paint or coating to mitigate corrosion by protecting the Document(s) used to confirm Criteria:
Comment: 3. Parameters Monitored/ Inspected A. The AMP utilizes periodic plant system walkdowns to monitor degradation of coatings, sealants, and caulking because it is a condition directly related to the potential loss of materials. Consistent with GALL AMP:
external surface of the tank from environmental exposure.
Yes No Document(s) used to confirm Criteria:  
Sealant or caulking at the interface edge between the tank and concrete or earthen foundation mitigates corrosion of the bottom surface of the tank by preventing water and moisture from           Comment:
penetrating the interface, which would lead to corrosion of the bottom surface.
: 3. Parameters       A. The AMP utilizes periodic plant system walkdowns to monitor       Consistent with GALL AMP:      Yes  No Monitored/          degradation of coatings, sealants, and caulking because it is a     Document(s) used to confirm Criteria:
Inspected          condition directly related to the potential loss of materials.
Comment:
: 4. Detection of    A. Degradation of exterior carbon steel surfaces cannot occur        Consistent with GALL AMP:       Yes  No Aging Effects      without degradation of paint or coatings on the outer surface        Document(s) used to confirm Criteria:
and of sealant and caulking at the interface between the component and concrete. Periodic system walkdowns to confirm that the paint, coating, sealant, and caulking are intact is an effective method to manage the effects of corrosion on the          Comment:
external surface of the component.
B. However, corrosion may occur at inaccessible locations, such Consistent with GALL AMP:            Yes   No as the tank bottom surface, thus, thickness measurement of the Document(s) used to confirm Criteria:
tank bottom is to be taken to ensure that significant degradation is not occurring and the component intended function will be maintained during the extended period of operation.
Comment:
XI.M29 Aboveground Steel Tanks                                                        2


Comment: 4. Detection of Aging Effects A. Degradation of exterior carbon steel surfaces cannot occur without degradation of paint or coatings on the outer surface and of sealant and caulking at the interface between the component and concrete. Periodic system walkdowns to confirm that the paint, coating, sealant, and caulking are intact is an effective method to manage the effects of corrosion on the external surface of the component. Consistent with GALL AMP:
Program            Auditable GALL Criteria                                              Documentation of Audit Finding Element 5.Monitoring        A. The effects of corrosion of the aboveground external surface      Consistent with GALL AMP:      Yes  No and Trending        are detectable by visual techniques. Based on operating              Document(s) used to confirm Criteria:
Yes No Document(s) used to confirm Criteria:  
experience, plant system walkdowns during each outage provide for timely detection of aging effects. The effects of corrosion of the underground external surface are detectable by thickness measurement of the tank bottom and are monitored            Comment:
and trended if significant material loss is detected.
: 6. Acceptance      A. Any degradation of paint, coating, sealant, and caulking is        Consistent with GALL AMP:      Yes  No Criteria            reported and will require further evaluation. Degradation             Document(s) used to confirm Criteria:
consists of cracking, flaking, or peeling of paint or coatings, and drying, cracking or missing sealant and caulking. Thickness measurements of the tank bottom are evaluated against the design thickness and corrosion allowance.                            Comment:
: 7. Corrective      A. The site corrective actions program, quality assurance (QA)        Consistent with GALL AMP:      Yes  No Actions            procedures, site review and approval process, and                     Document(s) used to confirm Criteria:
administrative controls are implemented in accordance with 10 CFR Part 50, Appendix B. As discussed in the appendix to this report, the staff finds the requirements of 10 CFR Part 50, Appendix B, acceptable to address the corrective actions,            Comment:
confirmation process, and administrative controls.
: 8.                  A. See Item 7, above.                                                 Consistent with GALL AMP:      Yes  No Confirmation                                                                              Document(s) used to confirm Criteria:
Process Comment:
: 9.                  A. See Item 7, above.                                                Consistent with GALL AMP:      Yes   No Administrative                                                                            Document(s) used to confirm Criteria:
Controls Comment:
: 10. Operating      A. Coating degradation, such as flaking and peeling, has              Consistent with GALL AMP:      Yes  No XI.M29 Aboveground Steel Tanks                                                          3


Comment: " B. However, corrosion may occur at inaccessible locations, such as the tank bottom surface, thus, thickness measurement of the tank bottom is to be taken to ensure that significant degradation is not occurring and the component intended function will be maintained during the extended period of operation. Consistent with GALL AMP:
Program            Auditable GALL Criteria                                        Documentation of Audit Finding Element Experience          occurred in safety-related systems and structures (Nuclear    Document(s) used to confirm Criteria:
Yes  No Document(s) used to confirm Criteria:  
Regulatory Commission [NRC] Generic Letter [GL] 98-04).
Corrosion damage near the concrete-metal interface and sand-metal interface has been reported in metal containments (NRC Information Notice [IN] 89-79, Supplement 1, and NRC          Comment:
IN 86-99, Supplement 1).
XI.M29 Aboveground Steel Tanks                                                  4


Comment:
EXCEPTIONS Item          Program Elements          LRA Exception Description  Basis for Accepting Exception  Documents Reviewed Number                                                                                              (Identifier, Para.# and/or Page #)
XI.M29 Aboveground Steel Tanks 3 Program Element Auditable GALL Criteria Documentation of Audit Finding  5.Monitoring and Trending A. The effects of corrosion of the aboveground external surface are detectable by visual techniques. Based on operating experience, plant system walkdowns during each outage provide for timely detection of aging effects. The effects of corrosion of the underground external surface are detectable by thickness measurement of the tank bottom and are monitored and trended if significant material loss is detected. Consistent with GALL AMP:
1.
Yes  No Document(s) used to confirm Criteria:
2.
Comment: 6. Acceptance Criteria A. Any degradation of paint, coating, sealant, and caulking is reported and will require further evaluation. Degradation consists of cracking, flaking, or peeling of paint or coatings, and drying, cracking or missing sealant and caulking. Thickness measurements of the tank bottom are evaluated against the design thickness and corrosion allowance. Consistent with GALL AMP:
Yes  No Document(s) used to confirm Criteria:
Comment: 7. Corrective Actions A. The site corrective actions program, quality assurance (QA) procedures, site review and approval process, and administrative controls are implemented in accordance with 10 CFR Part 50, Appendix B. As discussed in the appendix to this report, the staff finds the requirements of 10 CFR Part 50, Appendix B, acceptable to address the corrective actions, confirmation process, and administrative controls. Consistent with GALL AMP:
Yes  No Document(s) used to confirm Criteria:


Comment: 8. Confirmation Process A. See Item 7, above. Consistent with GALL AMP:
ENHANCEMENTS Item         Program Elements          LRA Enhancement Description Basis for Accepting Enhancement Documents Reviewed Number                                                                                              (Identifier, Para.# and/or Page #)
Yes  No Document(s) used to confirm Criteria:
1.
2.


Comment: 9.
DOCUMENT REVIEWED DURING AUDIT Document Number               Identifier (number)       Title                                                 Revision and/or Date 1.
Administrative Controls A. See Item 7, above. Consistent with GALL AMP:
2.
Yes  No Document(s) used to confirm Criteria:
3.
 
4.
Comment: 10. Operating A. Coating degradation, such as flaking and peeling, has Consistent with GALL AMP:
XI.M29 Aboveground Steel Tanks                                                5}}
Yes  No XI.M29 Aboveground Steel Tanks 4 Program Element Auditable GALL Criteria Documentation of Audit Finding  Experience occurred in safety-related systems and structures (Nuclear Regulatory Commission [NRC] Generic Letter [GL] 98-04). Corrosion damage near the concrete-metal interface and sand-metal interface has been reported in metal containments (NRC Information Notice [IN] 89-79, Supplement 1, and NRC IN 86-99, Supplement 1). Document(s) used to confirm Criteria:
Comment:
XI.M29 Aboveground Steel Tanks 5 EXCEPTIONS  Item Number Program Elements LRA Exception Description Basis for Accepting Exception Documents Reviewed  (Identifier, Para.# and/or Page #) 1. 2.    -
ENHANCEMENTS Item Number Program Elements LRA Enhancement Description Basis for Accepting Enhancement Documents Reviewed  (Identifier, Para.# and/or Page #) 1. 2.    -
DOCUMENT REVIEWED D URING A UDIT  Document Number Identifier (number) Title Revision and/or Date 1. 2. 3. 4.   -.}}

Latest revision as of 06:48, 14 March 2020

GALL AMP: XI.M29, Aboveground Steel Tanks (Audit Worksheet GALL Report AMP)
ML060950610
Person / Time
Site: Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date: 03/22/2006
From: Morgan M
NRC/NRR/ADRO/DLR/RLRC
To:
Office of Nuclear Reactor Regulation
morgan M NRR/NRC/DLR/RLRC, 415-2232
Shared Package
ML060950189 List: ... further results
References
%dam200611, TAC MC9668
Download: ML060950610 (5)
v • d • e


Text

AUDIT WORKSHEET GALL REPORT AMP PLANT: ______________________________

LRA AMP: __________________________ REVIEWER: ______________________

GALL AMP: XI.M29, Aboveground Steel Tanks DATE: __________________________

Program Auditable GALL Criteria Documentation of Audit Finding Element Program A. The program includes preventive measures to mitigate Consistent with GALL AMP: Yes No Description corrosion by protecting the external surface of steel tanks with Document(s) used to confirm Criteria:

paint or coatings in accordance with standard industry practice.

The program also relies on periodic system walkdowns to monitor degradation of the protective paint or coating. However, for storage tanks supported on earthen or concrete foundations, Comment:

corrosion may occur at inaccessible locations, such as the tank bottom. Accordingly, verification of the effectiveness of the program is to be performed to ensure that significant degradation in inaccessible locations is not occurring and the component intended function will be maintained during the extended period of operation. For reasons set forth below, an acceptable verification program consists of thickness measurement of the tank bottom surface.

1. Scope of A. The program consists of (a) preventive measures to mitigate Consistent with GALL AMP: Yes No Program corrosion by protecting the external surfaces of carbon steel Document(s) used to confirm Criteria:

tanks protected with paint or coatings and Comment B. (b) periodic system walkdowns to manage the effects of Consistent with GALL AMP: Yes No corrosion on the intended function of these tanks. Plant Document(s) used to confirm Criteria:

walkdowns cover the entire outer surface of the tank up to its surface in contact with soil or concrete.

XI.M29 Aboveground Steel Tanks 1

Program Auditable GALL Criteria Documentation of Audit Finding Element Comment:

2. Preventive A. In accordance with industry practice, tanks are coated with Consistent with GALL AMP: Yes No Actions protective paint or coating to mitigate corrosion by protecting the Document(s) used to confirm Criteria:

external surface of the tank from environmental exposure.

Sealant or caulking at the interface edge between the tank and concrete or earthen foundation mitigates corrosion of the bottom surface of the tank by preventing water and moisture from Comment:

penetrating the interface, which would lead to corrosion of the bottom surface.

3. Parameters A. The AMP utilizes periodic plant system walkdowns to monitor Consistent with GALL AMP: Yes No Monitored/ degradation of coatings, sealants, and caulking because it is a Document(s) used to confirm Criteria:

Inspected condition directly related to the potential loss of materials.

Comment:

4. Detection of A. Degradation of exterior carbon steel surfaces cannot occur Consistent with GALL AMP: Yes No Aging Effects without degradation of paint or coatings on the outer surface Document(s) used to confirm Criteria:

and of sealant and caulking at the interface between the component and concrete. Periodic system walkdowns to confirm that the paint, coating, sealant, and caulking are intact is an effective method to manage the effects of corrosion on the Comment:

external surface of the component.

B. However, corrosion may occur at inaccessible locations, such Consistent with GALL AMP: Yes No as the tank bottom surface, thus, thickness measurement of the Document(s) used to confirm Criteria:

tank bottom is to be taken to ensure that significant degradation is not occurring and the component intended function will be maintained during the extended period of operation.

Comment:

XI.M29 Aboveground Steel Tanks 2

Program Auditable GALL Criteria Documentation of Audit Finding Element 5.Monitoring A. The effects of corrosion of the aboveground external surface Consistent with GALL AMP: Yes No and Trending are detectable by visual techniques. Based on operating Document(s) used to confirm Criteria:

experience, plant system walkdowns during each outage provide for timely detection of aging effects. The effects of corrosion of the underground external surface are detectable by thickness measurement of the tank bottom and are monitored Comment:

and trended if significant material loss is detected.

6. Acceptance A. Any degradation of paint, coating, sealant, and caulking is Consistent with GALL AMP: Yes No Criteria reported and will require further evaluation. Degradation Document(s) used to confirm Criteria:

consists of cracking, flaking, or peeling of paint or coatings, and drying, cracking or missing sealant and caulking. Thickness measurements of the tank bottom are evaluated against the design thickness and corrosion allowance. Comment:

7. Corrective A. The site corrective actions program, quality assurance (QA) Consistent with GALL AMP: Yes No Actions procedures, site review and approval process, and Document(s) used to confirm Criteria:

administrative controls are implemented in accordance with 10 CFR Part 50, Appendix B. As discussed in the appendix to this report, the staff finds the requirements of 10 CFR Part 50, Appendix B, acceptable to address the corrective actions, Comment:

confirmation process, and administrative controls.

8. A. See Item 7, above. Consistent with GALL AMP: Yes No Confirmation Document(s) used to confirm Criteria:

Process Comment:

9. A. See Item 7, above. Consistent with GALL AMP: Yes No Administrative Document(s) used to confirm Criteria:

Controls Comment:

10. Operating A. Coating degradation, such as flaking and peeling, has Consistent with GALL AMP: Yes No XI.M29 Aboveground Steel Tanks 3

Program Auditable GALL Criteria Documentation of Audit Finding Element Experience occurred in safety-related systems and structures (Nuclear Document(s) used to confirm Criteria:

Regulatory Commission [NRC] Generic Letter [GL] 98-04).

Corrosion damage near the concrete-metal interface and sand-metal interface has been reported in metal containments (NRC Information Notice [IN] 89-79, Supplement 1, and NRC Comment:

IN 86-99, Supplement 1).

XI.M29 Aboveground Steel Tanks 4

EXCEPTIONS Item Program Elements LRA Exception Description Basis for Accepting Exception Documents Reviewed Number (Identifier, Para.# and/or Page #)

1.

2.

ENHANCEMENTS Item Program Elements LRA Enhancement Description Basis for Accepting Enhancement Documents Reviewed Number (Identifier, Para.# and/or Page #)

1.

2.

DOCUMENT REVIEWED DURING AUDIT Document Number Identifier (number) Title Revision and/or Date 1.

2.

3.

4.

XI.M29 Aboveground Steel Tanks 5

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