ML19157A009

Response to NRC Request for Additional Information, Dated May 15, 2019 Related to the Peach Bottom Atomic Power Station, Units 2 and 3, Subsequent License Renewal Application

ML19157A009
Person / Time
Site:	Peach Bottom
Issue date:	06/06/2019
From:	Gallagher M Exelon Generation Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML19157A009 (56)

Text

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\.\\\\\.1..'xdon.._ orp om 10 CFR 50 10 CFR 51 10 CFR 54 June 6, 2019 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001 Peach Bottom Atomic Power Station, Units 2 and 3 Renewed Facility Operating License Nos. DPR-44 and DPR-56 NRG Docket Nos. 50-277 and 50-278

Subject:

Response to NRG Request for Additional Information, dated May 15, 2019 related to the Peach Bottom Atomic Power Station, Units 2 and 3, Subsequent License Renewal Application

References:

1. Letter from Michael P. Gallagher, Exelon Generation Company LLC, to NRG Document Control Desk, dated July 10, 2018, "Application for Subsequent Renewed Operating Licenses"

2. E-mail from Bennett Brady, NRG to Michael P. Gallagher, Exelon Generation Company, LLC, dated May 15, 2019, "Request for Additional Information for the Safety Review of the Peach Bottom Subsequent License Renewal Application - Responses to Set 1 RAls" In Reference 1, Exelon Generation Company, LLC (Exelon) submitted the Subsequent License Renewal Application (SLRA) for the Peach Bottom Atomic Power Station (PBAPS),

Units 2 and 3. In Reference 2, the NRG requested additional information to support staff review of the SLRA.

Enclosure A contains the response to this request for additional information.

Enclosure B contains updates to sections of the SLRA affected by the response.

This letter contains no new regulatory commitments.

If you have any questions, please contact Mr. David J. Distel, Licensing Lead, Peach Bottom Subsequent License Renewal Project, at 610-765-5517.

June 6, 2019 U.S. Nuclear Regulatory Commission Page 2 I declare under penalty of perjury that the foregoing is true and correct. Executed on the 61h day of June 2019.

Respectfully submitted, Vice President - License Renewal and Decommissioning Exelon Generation Company, LLC

Enclosures:

A: Response to Request for Additional Information B: Subsequent License Renewal Application Updates cc: Regional Administrator - NRC Region I NRC Senior Project Manager (Safety Review), NRR-DMLR NRC Project Manager (Environmental Review), NRR-DMLR NRC Project Manager, NRA-DORL- Peach Bottom Atomic Power Station NRC Senior Resident Inspector, Peach Bottom Atomic Power Station R.R. Janati, Pennsylvania Bureau of Radiation Protection D.A. Tancabel, State of Maryland

Enclosure A Response to Request for Additional Information Peach Bottom Atomic Power Station, Units 2 and 3 Subsequent License Renewal Application (SLRA)

RAI 3.3.2.1.1-1 a

June 6, 2019 Enclosure A Page 1 of 3 Regulatory Basis:

1o CFR 54.21 (a)(3) requires an applicant to demonstrate that the effects of aging for structures and components will be adequately managed so that the intended function(s) will be maintained consistent with the current licensing basis for the subsequent period of extended operation. One of the findings that the staff must make to issue a renewed license (1 O CFR 54.29(a)) is that actions have been identified and have been or will be taken with respect to manage the effects of aging during the subsequent period of extended operation on the functionality of structures and components that have been identified to require review under 10 CFR 54.21, such that there is reasonable assurance that the activities authorized by the renewed license will continue to be conducted in accordance with the current licensing basis. To complete its review and enable making a finding under 10 CFR 54.29(a), the staff requires additional information about the matters described below.

RAI 3.3.2.1.1-1a

Background:

A. The May 2, 2019, (ML19122A289) response to RAI 3.3.2.1.1-1 states that, "cracking due to SCC [stress corrosion cracking] is not cited as an aging effect requiring management for copper alloy with greater than 15 percent zinc components in the environment of air - indoor, uncontrolled." The response provided a basis for this position citing NUREG-2221, Technical Bases for Changes in the Subsequent License Renewal Guidance Documents NUREG-2191 and NUREG-2192," Table 3-2 "SRP-SLR Chapter 2, Scoping and Screening, Differences from SAP-LR, Revision 2 and Their Technical Bases," as follows:

• It is unlikely that leakage from packing, gaskets, seals or o-rings would result in failure of the system to deliver sufficient flow at adequate pressure.

• In regard to leakage, which could affect either the pressure boundary (containment leak boundary) or leakage boundary (spatial) intended functions, licensees routinely conduct tours of the operating spaces. When leakage is detected it is typically promptly entered into the corrective action program. The leakage is corrected by replacing the packing, gaskets, seals, and o-rings as consumables.

Regarding the air-indoor uncontrolled environment, the RAI response states:

It is feasible that trace amounts of ammonia or ammonium compounds could exist in the air - indoor, uncontrolled environment due to (1) incidental leakage from the raw water cooling systems from packing, gaskets, seals, and o-rings, and, (2) incidental leakage from packing, gaskets, seals, and o-rings through insulation where the insulation contains contaminants.

The associated copper alloy with greater than 15 percent zinc components are cited as being consistent.

B. For six of the environments (i.e., air indoor-uncontrolled, air-outdoor, air-dry, treated water, condensation, waste water) cited in the response to RAI 3.3.2.1.1-1, the response states in part that, "ammonia or ammonium compounds are not assumed to be present."

June 6, 2019 Enclosure A Page 2 of 3 Issue:

A. In justifying that potential sources of ammonia are not required to be considered when determining aging effects requiring management, the RAI response misapplied the position documented in NUREG-2221, Table 3-2 regarding why it is not necessary to manage loss of leak tightness for packing, gaskets, seals, and 0-rings. Referencing the staff position in the basis documents, the staff concludes that the RAI response basis is not correct as follows:

• The technical basis statement associated with leakage from degraded packing, gaskets, seals, and 0-rings is in relation to the process flow. There is reasonable assurance that the pressure boundary intended function of the component would not be adversely affected due to leaks from packing, gasket, seals and 0-rings; however, that does not imply that leaks from these types of components cannot cause aging effects that adversely affect the pressure boundary intended functions of other components.

• The technical basis document statement regarding the replacement of these components as consumables:

o The function of the containment leakage boundary is to provide containment isolation for fission product retention. While packing, gaskets, seals, and 0-rings could impact this function, the GALL-SLR Report recommends periodic testing of containment penetrations, which would test these items along with the entire penetration. It is not necessary to "separately manage aging effects for packing, gaskets, seals, and 0-rings in regard to this intended function.

o The staff recognizes that leakage and spray from nonsafety-related components are associated with the leakage boundary (spatial) intended function. However, as stated in the basis, leaks are typically promptly identified and corrected. As a result, it is the staff's position that recommending management of aging effects associated with packing, gaskets, seals, and 0-rings is not warranted. Stating it in another manner, it is not warranted that packing, gaskets, seals, and 0-rings be identified as items requiring aging management in the Table 2s of applications.

o These positions do not extend to include an interpretation that this leakage is, "not required to be considered when determining aging effects requiring management." In fact, such an interpretation contradicts SRP-SLR Section A.1.2.1, which states:

However, leakage from bolted connections should not be considered as abnormal events. Although bolted connections are not supposed to leak, experience shows that leaks do occur, and the leakage could cause corrosion. In addition, condensation frequently occurs during humid periods of normal plant operation and can also occur during plant shutdown when normally hot components might be below the dew point. The aging effects from leakage of bolted connections and condensation occurring during humid periods of normal plant operations should be evaluated for SLR.

In summary, the GALL-SLR Report and SRP-SLR do not recommend that aging effects be managed for packing, gaskets, seals, and 0-rings. However, potential aging effects due to degraded (leaking) packing, gaskets, seals, and 0-rings should be evaluated to be consistent with the GALL-SLR Report.

June 6, 2019 Enclosure A Page 3 of 3 B. The RAI response lacks sufficient clarity on whether ammonia or ammonium compounds are or could be present.

Request:

A. State the basis for why cracking due to sec is not cited as an aging effect requiring management for copper alloy with greater than 15 percent zinc components exposed to an environment of air - indoor, uncontrolled.

B. Definitively state whether ammonia or ammonium compounds are or could be present in the following environments: air indoor-uncontrolled, air-outdoor, air-dry, treated water, condensation, and waste water.

Exelon Response:

A. Copper alloy with greater than 15 percent zinc components exposed to the environment of air-indoor uncontrolled will cite cracking due to stress corrosion cracking as an aging effect since ammonia or ammonium compounds could be present via leakage through degraded packing, gaskets, seals, and 0-rings. These components will be managed by programs which include periodic visual inspections capable of detecting this aging effect.

8. As discussed in the item A response above, ammonia or ammonium compounds could be present in the environment of air-indoor uncontrolled due to leakage through degraded packing, gaskets, seals, and 0-rings.

For the environments of air-outdoor, air-dry, treated water, and certain condensation and waste water environments as described in response to RAI 3.3.2.1.1-1 (Letter from Michael P. Gallagher, Exelon Generation Company LLC, to NRC Document Control Desk, dated May 2, 2019, "Response to NRC Requests for Additional Information, Set 1, dated April 10, 2019 related to the Peach Bottom Atomic Power Station, Units 2 and 3, Subsequent License Renewal Application"), the presence of ammonia or ammonium compounds was not assumed. The term "not assumed" is based on the determination that potential sources of ammonia or ammonium compounds are not present in these environments that can impact copper alloy with greater than 15 percent zinc components and therefore, are not required to be considered when determining aging effects requiring management.

SLRA Sections 3.3.2.1.9, 3.3.2.1.22, 3.3.2.1.28, Table 3.4.1 Item Number 3.4.1-106 and Tables 3.1.2-3, 3.2.2-2, 3.2.2-3, 3.2.2-4, 3.2.2-5, 3.2.2-6, 3.2.2-8, 3.3.2-1, 3.3.2-2, 3.3.2-3, 3.3.2-7, 3.3.2-9, 3.3.2-12, 3.3.2-14, 3.3.2-20, 3.3.2-21, 3.3.2-22, 3.3.2-24, 3.3.2-25, 3.3.2-28, 3.3.2-29, 3.3.2-35, and 3.5.2-4 are revised as shown in Enclosure B to cite cracking as an aging effect requiring management in copper alloy with greater than 15 percent zinc in the air-indoor uncontrolled environment.

Enclosure B Peach Bottom Atomic Power Station, Units 2 and 3 Subsequent License Renewal Application Updates Resulting from the Response to the following RAI:

RAI 3.3.2.1.1-1a Notes:

• Updated SLRA Information is provided in the same order as the RAI responses contained in Enclosure A.

• To facilitate understanding, portions of the original SLRA have been repeated in this Enclosure, with revisions indicated. Previously submitted information is shown in normal font. Changes are highlighted with balded italics for inserted text and strikothFOughs for deleted text.

June 6, 2019 Enclosure B Page 1 of 49 As a result of the response to RAI 3.3.2.1.1-1 a provided in Enclosure A of this letter, SLRA Section 3.3.2.1.9 on page 3.3-13 of the SLRA is revised as shown below:

Aging Effects Requiring Management The following aging effects associated with the Diesel Generator Building Ventilation System components require management:

• Cracking

• Hardening and Loss of Strength

• Loss of Material

• Loss of Preload

June 6, 2019 Enclosure B Page 2 of 49 As a result of the response to RAI 3.3.2.1.1-1 a provided in Enclosure A of this letter, SLRA Section 3.3.2.1.22 on page 3.3-29 of the SLRA is revised as shown below:

Aging Effects Requiring Management The following aging effects associated with the Pump Structure Ventilation System components require management:

• Cracking

• Hardening and Loss of Strength

• Loss of Material

• Loss of Preload

June 6, 2019 Enclosure B Page 3 of 49 As a result of the response to RAI 3.3.2.1.1-1 a provided in Enclosure A of this letter, SLRA Section 3.3.2.1.28 on page 3.3-37 of the SLRA is revised as shown below:

Aging Management Programs The following aging management programs manage the aging effects for the Safety Grade Instrument Gas System components:

• Bolting Integrity (8.2.1.10)

• Compressed Air Monitoring (B.2.1.14)

• External Surfaces Monitoring of Mechanical Components (8.2.1.24)

• One-Time Inspection (B.2.1.21)

June 6, 2019 Enclosure B Page 4 of 49 As a result of the response to RAI 3.3.2.1.1-1a provided in Enclosure A of this letter, SLRA Table 3.4.1, Item 3.4.1-106 on page 3.4-51 of the SLRA is revised as shown below:

Table3.4.1 Summary of Aging Management Evaluations for the Steam and Power Conversion Systems Item Aging Aging Management Further Number Component Effect/Mechanism Programs Evaluation Discussion Recommended 3.4.1-106 Copper alloy (> 15% Zn or Cracking due to SCC AMP Xl.M36, No Net A~~lisable.

>8% Al) piping, piping "External Surfaces +l=leFe aFe RS 68~~8F alley {;. ~ 5% lR SF components exposed to Monitoring of Mechanical  ;. 8% Jl,f) ~i~iR§, ~i~iR§ 68R'l~8R8Rt6 air, condensation Components" 8X~868el te aiF SF 68REl8RSati8R iR ateaR'I aREI PeweF CeRveFSieR SysteR'ls.

For the environment of air-indoor uncontrolled, cracking due to stress corrosion cracking can occur due to the presence of ammonia or ammonium compounds via leakage through the insulation from bolted connections (e.g.,

flange joints, valve packing). Ammonia or ammonium compounds are not present in other air environments or condensation.

Consistent with NUREG-2191. The External Surfaces Monitoring of Mechanical Components (B.2.1.24) program will be used to manage cracking of the copper alloy with greater than 15% zinc piping, piping components, spray nozzles, and sprinklers exposed to air-indoor uncontrolled in the Auxiliary Steam System, Backup Instrument Nitrogen to ADS System, Battery and Emergency Switchgear Ventilation System, Control Room Ventilation System, Diesel Generator Building Ventilation System, Emergency Diesel Generator System, Fire Protection System, Post Accident

June 6, 2019 Enclosure B Page 5 of 49 Table3.4.1 Summary of Aging Management Evaluations for the Steam and Power Conversion Systems Item Aging Aging Management Further Number Component Effect/Mechanism Programs Evaluation Discussion Recommended Sampling System, Process Sampling System, Pump Structure Ventilation System, Radwaste System, Reactor Building Closed Cooling Water System, Safety Grade Instrument Gas System, Service Water System, Turbine Building Closed Cooling Water System, Core Spray System, High Pressure Coolant Injection System, Primary Containment Isolation System, Reactor Core Isolation Cooling System, Residual Heat Removal System, Standby Gas Treatment System, and Reactor Recirculation System.

The ASME Section XI, Subsection IWF (B.2.1.31) program has been substituted and will be used to manage cracking of the brass bolting in supports for ASME Class 2 and 3 piping and components exposed to air-indoor uncontrolled in the Component Supports commodity group.

The Structures Monitoring (B.2.1.34) program has been substituted and will be used to manage cracking of the brass bolting in supports for non-ASME piping and components exposed to air-indoor uncontrolled in the Component Suooorts commoditv aroup.

June 6, 2019 Enclosure B Page 6 of 49 As a result of the response to RAI 3.3.2.1.1-1 a provided in Enclosure A of this letter, SLRA Table 3.1.2-3 on page 3.1-118 of the SLRA is revised as shown below. The table is abbreviated to show only affected line items. Line items not shown from the original SLRA are not revised and remain applicable.

Table 3.1.2-3 Reactor Recirculation System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item ManaQement Piping, piping Leakage Boundary Copper Alloy with Air- Indoor t>JGAe t>JGAe 1¥.e.R 483 3.U ~37 A components Greater Than Uncontrolled (External) Cracking External Surfaces Vl/l.H.S-454 3.4.1-106 15%Zinc Monitoring of Mechanical Components (B.2.1.24)

Lubricating Oil (Internal) Loss of Material Lubricating Oil Analysis V.D2.EP*76 3.2.1*050 A (8.2.1.26)

One-Time Inspection V.02.EP-76 3.2.1-050 A (8.2.1.21)

June 6, 2019 Enclosure B Page 7 of 49 As a result of the response to RAI 3.3.2.1.1-1 a provided in Enclosure A of this letter, SLRA Table 3.2.2-2 on page 3.2-90 of the SLRA is revised as shown below. The table is abbreviated to show only affected line items. Line items not shown from the original SLRA are not revised and remain applicable.

Table 3.2.2-2 Core Spray System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Manaaement Valve Body Pressure Boundary Copper Alloy with Air- Indoor f>J9A0 f>J9A0 V.F.el2 rn a . 2.~ Ga+ A Greater Than Uncontrolled (External) Cracking External Surfaces 3.4.1-106 Vl/l.H.S-454 15% Zinc Monitoring of Mechanical Components (8.2.1.24)

Condensation (Internal) None None V.F.EP-10 3.2.1-057 A

June 6, 2019 Enclosure B Page 8 of 49 As a result of the response to RAI 3.3.2.1.1-1a provided in Enclosure A of this letter, SLRA Table 3.2.2-3 on pages 3.2-103, 3.2-109, and 3.2-110 of the SLRA is revised as shown below. The table is abbreviated to show only affected line items. Line items not shown from the original SLRA are not revised and remain applicable.

Table 3.2.2-3 High Pressure Coolant Injection System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item ManaQement Piping, piping Pressure Boundary Copper Alloy with Air - Indoor NeAe NeAe \t.i;:.ei;i rn a.:u g57 A components Greater Than Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (B.2.1.24)

Lubricating Oil (Internal) Loss of Material Lubricating Oil Analysis V.02.EP-76 3.2.1-050 A (8.2.1.26)

One-Time Inspection V.02.EP-76 3.2.1-050 A (B.2.1.21)

June 6, 2019 Enclosure B Page 9 of 49 Table 3.2.2-3 High Pressure Coolant Injection System {Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Manaaement Valve Body Leakage Boundary Copper Alloy with Air - Indoor NeR8 NeR8 \l.F.ei;l ~Q a.a.~ Qa7 A Greater Than Uncontrolled (External) Cracking External Surfaces VJJJ.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (8.2.1.24J Condensation (Internal) None None V.F.EP-10 3.2.1-057 A

June 6, 2019 Enclosure B Page 10 of 49 Table 3.2.2-3 High Pressure Coolant Injection System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Management Valve Body Pressure Boundary Copper Alloy with Air - Indoor Nooe Nooe ),l.i;'..eP ~g a.:u g57 A Greater Than Uncontrolled (External) Cracking External Surfaces V/ll.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (8.2.1.24J Condensation (Internal) None None V.F.EP-10 3.2.1-057 A Lubricating Oil (Internal) Loss of Material Lubricating Oil Analysis V.02.EP-76 3.2.1-050 A (B.2.1.26)

One-Time Inspection V.02.EP-76 3.2.1-050 A (B.2.1.21)

June 6, 2019 Enclosure B Page 11 of 49 As a result of the response to RAI 3.3.2.1.1-1 a provided in Enclosure A of this letter, SLRA Table 3.2.2-4 on page 3.2-121 of the SLRA is revised as shown below. The table is abbreviated to show only affected line items. Line items not shown from the original SLRA are not revised and remain applicable.

Table 3.2.2-4 Primary Containment Isolation System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Management Valve Body Structural Integrity Copper Alloy with Air - Dry (Internal) Loss of Material Compressed Air Vll.D.A-764 3.3.1-235 A (Attached) Greater Than Monitoring (B.2.1.14) 15% Zinc Air - Indoor NeRe NeRe l.t.1:.ei;i rn a.:u Qa7 A Uncontrolled (External) Cracking External Surfaces Vll/.H.S-454 3.4.1-106 Monitoring of Mechanical Components (8.2.1.24)

June 6, 2019 Enclosure B Page 12 of 49 As a result of the response to RAI 3.3.2.1.1-1 a provided in Enclosure A of this letter, SLRA Table 3.2.2-5 on pages 3.2-131 and 3.2-138 of the SLRA is revised as shown below. The table is abbreviated to show only affected line items. Line items not shown from the original SLRA are not revised and remain applicable.

Table 3.2.2-5 Reactor Core Isolation Cooling System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Mana~ement Piping, piping Pressure Boundary Copper Alloy with Air- Indoor Nooe Nooe v.i;:.e:~ rn a.:u Ga7 A components Greater Than Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (B.2.1.24)

Lubricating Oil (Internal) Loss of Material Lubricating Oil Analysis V.D2.EP-76 3.2.1-050 A (B.2.1.26)

One-Time Inspection V.D2.EP-76 3.2.1-050 A (8.2.1.21)

June 6, 2019 Enclosure B Page 13 of 49 Table 3.2.2-5 Reactor Core Isolation Cooling System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Management Valve Body Pressure Boundary Copper Alloy with Air- Indoor N9A8 N9A8 V.F'..El2 rn a.a.~ g57 A Greater Than Uncontrolled (External) Cracking External Surfaces VJJJ.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (8.2.1.24J Condensation (Internal) None None V.F.EP-10 3.2.1-057 A

June 6, 2019 Enclosure 8 Page 14 of 49 As a result of the response to RAI 3.3.2.1.1-1a provided in Enclosure A of this letter, SLRA Table 3.2.2-6 on pages 3.2-147 and 3.2-148 of the SLRA is revised as shown below. The table is abbreviated to show only affected line items. Line items not shown from the original SLRA are not revised and remain applicable.

Table 3.2.2-6 Residual Heat Removal System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Management Spray Nozzles Spray Copper Alloy with Air- Indoor N9Ae N9Ae V.F.Ei;i ~Q a.:u Q57 A Greater Than Uncontrolled (External)

Cracking External Surfaces Vlll.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (8.2.1.24J Condensation (Internal) Flow Blockage One-Time Inspection V.D2.EP-113a 3.2.1-006 A (B.2.1.21)

June 6, 2019 Enclosure B Page 15 of 49 Table 3.2.2-6 Residual Heat Removal System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Management Valve Body Pressure Boundary Copper Alloy with Air- Indoor NaAe NaAe v.i=:.e:P ~g a.:u Qa7 A Greater Than Uncontrolled (External) Cracking External Surfaces Vlll.H.5-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (B.2.1.24)

June 6, 2019 Enclosure B Page 16 of 49 As a result of the response to RAI 3.3.2.1.1-1 a provided in Enclosure A of this letter, SLRA Table 3.2.2-8 on page 3.2-157 of the SLRA is revised as shown below. The table is abbreviated to show only affected line items. Line items not shown from the original SLRA are not revised and remain applicable.

Table 3.2.2-8 Standby Gas Treatment System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item ManaQement Piping, piping Pressure Boundary Copper Alloy with Air- Indoor Nooe Nooe ~l.F.eP ~g a.:u g57 A components Greater Than Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (8.2.1.24J Condensation (Internal) None None V.F.EP-10 3.2.1-057 A Structural Integrity Copper Alloy with Air - Dry (Internal) Loss of Material Compressed Air Vll.D.A-764 3.3.1-235 A (Attached) Greater Than Monitoring (B.2.1.14) 15% Zinc Air- Indoor Nooe Nooe ~lll..l ..A.12 H4 a.a.~ ~ ~ 4 A Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 Monitoring of Mechanical Components (8.2.1.24)

Valve Body Pressure Boundary Copper Alloy with Air- Indoor Nooe Nooe V.F.eP rn a.:u g57 A Greater Than Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (B.2.1.24)

Condensation (Internal) None None V.F.EP-10 3.2.1-057 A

June 6, 2019 Enclosure B Page 17 of 49 As a result of the response to RAI 3.3.2.1.1-1 a provided in Enclosure A of this letter, SLRA Table 3.3.2-1 on pages 3.3-163 and 3.3-165 of the SLRA is revised as shown below. The table is abbreviated to show only affected line items. Line items not shown from the original SLRA are not revised and remain applicable.

Table 3.3.2-1 Auxiliary Steam System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Management Piping, piping Leakage Boundary Copper Alloy with Air- Indoor Nooe Nooe )Jll.,LA,i;! ~44 a.a.~ ~ H A components Greater Than Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanics/Componen~

(B.2.1.24J

!Treated Water (Internal Loss of Material One-Time Inspection Vll.E3.AP-140 3.3.1-022 A (8.2.1.21)

Water Chemistrv (8.2.1.2) Vll.E3.AP-140 3.3.1-022 8 Selective Leaching Vll.E3.AP-32 3.3.1-072 A (B.2.1.22)

June 6, 2019 Enclosure 8 Page 18 of 49 Table 3.3.2-1 Auxiliary Steam System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Management Valve Body Leakage Boundary Copper Alloy with Air- Indoor Nooe Nooe lJI 1.,LA,i;! H 4 a.:u ~H A Greater Than Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (B.2.1.24}

Treated Water (Internal) Loss of Material One-Time Inspection Vll.E3.AP-140 3.3.1-022 A (B.2.1.21)

Water Chemistry (B.2.1.2) Vll.E3.AP-140 3.3.1-022 B Selective Leaching Vll.E3.AP-32 3.3.1-072 A (B.2.1.22)

June 6, 2019 Enclosure B Page 19 of 49 As a result of the response to RAI 3.3.2.1.1-1a provided in Enclosure A of this letter, SLRA Table 3.3.2-2 on page 3.3-169 of the SLRA is revised as shown below. The table is abbreviated to show only affected line items. Line items not shown from the original SLRA are not revised and remain applicable.

Table 3.3.2-2 Backup Instrument Nitrogen to ADS System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item ManaQement Valve Body Pressure Boundary Copper Alloy with Air - Dry (Internal) Loss of Material Compressed Air Vll.D.A-764 3.3.1-235 A Greater Than Monitoring (B.2.1.14) 15% Zinc Air - Indoor Nooe Nooe )JI J.J.,A,12 ~ 44 a.:u ~H A Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 Monitoring of Mechanical Component!

(B.2.1.24)

June 6, 2019 Enclosure B Page 20 of 49 As a result of the response to RAI 3.3.2.1.1-1 a provided in Enclosure A of this letter, SLRA Table 3.3.2-3 on pages 3.3-172 and 3.3-173 of the SLRA is revised as shown below. The table is abbreviated to show only affected line items. Line items not shown from the original SLRA are not revised and remain applicable.

Table 3.3.2-3 Battery and Emergency Switchgear Ventilation System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Management Piping, piping Pressure Boundary Copper Alloy with Air - Dry (Internal) Loss of Material Compressed Air Vll.D.A-764 3.3.1-235 A components Greater Than Monitoring (B.2.1.14) 15% Zinc Air - Indoor NGRe NGRe >.tll.J.Al2 ~44 3.:u ~14 A Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 Monitoring of Mechanical Components (B.2.1.24)

Condensation (Internal' None None Vll.J.AP-144 3.3.1-114 A Gas (Internal) None None Vll.J.AP-9 3.3.1-114 A Structural Integrity Copper Alloy with Air - Dry (Internal) Loss of Material Compressed Air Vll.D.A-764 3.3.1-235 A (Attached) Greater Than Monitoring (B.2.1.14) 15% Zinc Air- Indoor NGRe NGRe Vll.J.AF! 144 3.3.~ ~ 14 A Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 Monitoring of Mechanical Components (8.2.1.24J

June 6, 2019 Enclosure B Page 21of49 Table 3.3.2-3 Battery and Emergency Switchgear Ventilation System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Management Valve Body Pressure Boundary Copper Alloy with Air - Dry (Internal) Loss of Material Compressed Air Vll.D.A-764 3.3.1-235 A Greater Than Monitoring (B.2.1.14) 15% Zinc Air- Indoor Nooe Nooe Vll.J.AP H4 a.:u ~~11 A Uncontrolled (External) Cracking External Surfaces Vl/l.H.S-454 3.4.1-106 Monitoring of Mechanical Components (8.2.1.241 Condensation (Internal) None None Vll.J.AP-144 3.3.1-114 A

June 6, 2019 Enclosure 8 Page 22 of 49 As a result of the response to RAI 3.3.2.1.1-1 a provided in Enclosure A of this letter, SLRA Table 3.3.2-7 on pages 3.3-194 and 3.3-195 of the SLRA is revised as shown below. The table is abbreviated to show only affected line items. Line items not shown from the original SLRA are not revised and remain applicable.

Table 3.3.2-7 Control Room Ventilation System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item ManaQement Piping, piping Pressure Boundary Copper Alloy with Air - Indoor NeRe NeRe lJll.J ..A.12 H4 a.a.~ u4 A components Greater Than Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (B.2.1.24)

Condensation (Internal) None None Vll.J.AP-144 3.3.1-114 A Structural Integrity Copper Alloy with Air - Dry (Internal) Loss of Material Compressed Air Vll.D.A-764 3.3.1-235 A (Attached) Greater Than Monitoring (B.2.1.14) 15% Zinc

June 6, 2019 Enclosure B Page 23 of 49 Table 3.3.2-7 Control Room Ventilation System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Management Piping, piping Structural Integrity Copper Alloy with Air - Indoor NeR9 NeR9 Vll.J.,A.P H4 3.3.~ ~~4 A components (Attached) Greater Than Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (8.2.1.24)

Valve Body Pressure Boundary Copper Alloy with Air- Indoor NeR9 NeR9 ~lll.J ..0,12 H4 3.3.~ n4 A Greater Than Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanical Component~

(8.2.1.24l Condensation (Internal) None None Vll.J.AP-144 3.3.1-114 A

June 6, 2019 Enclosure B Page 24 of 49 As a result of the response to RAI 3.3.2.1.1-1 a provided in Enclosure A of this letter, SLRA Table 3.3.2-9 on page 3.3-202 of the SLRA is revised as shown below. The table is abbreviated to show only affected line items. Line items not shown from the original SLRA are not revised and remain applicable.

Table 3.3.2-9 Diesel Generator Building Ventilation System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Management Piping, piping Pressure Boundary Copper Alloy with Air - Indoor Nooe Nooe Vll.J_.11,i;l H4 a.:u ~H A components Greater Than Uncontrolled (External)

Cracking External Surfaces Vlll.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (B.2.1.24)

Condensation (Internal) None None Vll.J.AP-144 3.3.1-114 A Valve Body Pressure Boundary Copper Alloy with Air- Indoor Nooe Nooe \lll.J.Ai;;! H4 a.:u ~H A Greater Than Uncontrolled (External)

Cracking External Surfaces Vl/l.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (B.2.1.24)

Condensation (Internal) None None Vll.J.AP-144 3.3.1-114 A

June 6, 2019 Enclosure B Page 25 of 49 As a result of the response to RAI 3.3.2.1.1-1 a provided in Enclosure A of this letter, SLRA Table 3.3.2-12 on pages 3.3-222, 3.3-224, 3.3-230, and 3.3-232 of the SLRA is revised as shown below. The table is abbreviated to show only affected line items.

Line items not shown from the original SLRA are not revised and remain applicable.

Table 3.3.2-12 Emergency Diesel Generator System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 ltem Management Piping, piping Pressure Boundary Copper Alloy with Air - Indoor Nooe Nooe Vll.J.AF! H4 3.3.~ ~ ~ 4 A components Greater Than Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (B.2.1.24)

Closed Cycle Cooling Cracking Closed Treated Water Vll.C2.A-473a 3.3.1-160 B Water (Internal) Svstems (B.2.1.12)

Loss of Material Closed Treated Water Vll.H2.AP-199 3.3.1-046 B Systems (B.2.1.12)

Selective Leaching Vll.H2.AP-43 3.3.1-072 A (B.2.1.22)

Condensation (Internal' None None Vll.J.AP-144 3.3.1-114 A Fuel Oil (Internal) Loss of Material Fuel Oil Chemistry Vll.H1 .AP-132 3.3.1-069 A (8.2.1.19)

One-Time Inspection Vll.H1.AP-132 3.3.1-069 A (B.2.1.21)

Lubricating Oil (Internal) Loss of Material Lubricating Oil Analysis Vll.H2.AP-133 3.3.1-099 A (B.2.1.26)

One-Time Inspection Vll.H2.AP-133 3.3.1-099 A (B.2.1.21)

June 6, 2019 Enclosure B Page 26 of 49 Table 3.3.2-12 Emergency Diesel Generator System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Management Piping, piping Structural Integrity Copper Alloy with Air- Indoor None None Vll.J.AP-144 3.3.1-114 A components (Attached) 15% Zinc or Less Uncontrolled (External)

Condensation (Internal) None None Vll.J.AP-144 3.3.1-114 A Copper Alloy with Air- Indoor Nooe Nooe VIL.I.A~ ~44 3.3.~ n4 A Greater Than Uncontrolled (External) Cracking External Surfaces V/ll.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (B.2.1.24)

Condensation (Internal' None None Vll.J.AP-144 3.3.1-114 A Stainless Steel Air- Indoor Cracking One-Time Inspection Vll.H2.AP-209a 3.3.1-004 A Uncontrolled (External) CB.2.1.21)

Loss of Material One-Time Inspection Vll.H2.AP-221 a 3.3.1-006 A CB.2.1.21)

Condensation (Internal) Cracking One-Time Inspection Vll.H2.AP-209a 3.3.1-004 A CB.2.1.21)

Loss of Material One-Time Inspection Vll.H2.AP-221a 3.3.1-006 A (B.2.1.21)

June 6, 2019 Enclosure B Page 27 of 49 Table 3.3.2-12 Emergency Diesel Generator System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Management Valve Body Pressure Boundary Copper Alloy with Air- Indoor NeA9 NeA9 )JI l.J ..A,F2 ~ 44 3.:u n4 A Greater Than Uncontrolled (External) Cracking External Surfaces 3.4.1-106 Vlll.H.S-454 15% Zinc Monitoring of Mechanical Components (B.2.1.24)

Closed Cycle Cooling Cracking Closed Treated Water Vll.C2.A-473a 3.3.1-160 B Water (Internal) Systems (B.2.1.12)

Loss of Material Closed Treated Water Vll.H2.AP-199 3.3.1-046 B Svstems (B.2.1.12)

Selective Leaching Vll.H2.AP-43 3.3.1-072 A (B.2.1.22)

Condensation (Internal) None None Vll.J.AP-144 3.3.1-114 A Fuel Oil (External) Loss of Material Fuel Oil Chemistry Vll.H1.AP-132 3.3.1-069 A (B.2.1.19)

One-Time Inspection Vll.H1 .AP-132 3.3.1-069 A CB.2.1.21)

Fuel Oil (Internal) Loss of Material Fuel Oil Chemistry Vll.H1.AP-132 3.3.1-069 A (B.2.1.19)

One-Time Inspection Vll.H1.AP-132 3.3.1-069 A (B.2.1.21)

Lubricating Oil (Internal Loss of Material Lubricating Oil Analysis Vll.H2.AP-133 3.3.1-099 A (B.2.1.26)

One-Time Inspection Vll.H2.AP-133 3.3.1-099 A (B.2.1.21)

June 6, 2019 Enclosure B Page 28 of 49 Table 3.3.2-12 Emergency Diesel Generator System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Management Valve Body Structural Integrity Copper Alloy with Air- Indoor NeRe NeAe lJll.J.Ai;! ~44 3.3.~ n4 A (Attached) Greater Than Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 15%Zinc Monitoring of Mechanical Components (B.2.1.24)

Condensation (Internal) None None Vll.J.AP-144 3.3.1-114 A

June 6, 2019 Enclosure B Page 29 of 49 As a result of the response to RAI 3.3.2.1.1-1 a provided in Enclosure A of this letter, SLRA Table 3.3.2-14 on pages 3.3-255, 3.3-257, 3.3-264, 3.3-265, and 3.3-269 of the SLRA is revised as shown below. The table is abbreviated to show only affected line items. Line items not shown from the original SLRA are not revised and remain applicable.

Table 3.3.2-14 Fire Protection System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Management Piping, piping Leakage Boundary Copper Alloy with Air- Indoor NaA8 NaA8 Vll.J .*A.12 H4 3.:U ~H A components Greater Than Uncontrolled (External)

Cracking External Surfaces Vl//.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (B.2.1.24)

Raw Water (Internal) Loss of Material Inspection of Internal Vll.G.A-650 3.3.1-198 A Surfaces in Miscellaneous Piping and Ducting Components (B.2.1.25)

Selective Leaching Vll.G.A-47 3.3.1-072 A (B.2.1.22)

June 6, 2019 Enclosure B Page 30 of 49 Table 3.3.2-14 Fire Protection System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Manaaement Piping, piping Pressure Boundary Copper Alloy with Air- Indoor NeAe NeAe lJll.J.AP ~ 44 :il.:u n4 A components Greater Than Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (B.2.1.24)

Air - Outdoor (External) Loss of Material Fire Water System Vll.G.A-403 3.3.1-130 D (B.2.1.17)

June 6, 2019 Enclosure B Page 31of49 Table 3.3.2-14 Fire Protection System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item ManaQement Sprinklers Pressure Boundary Copper Alloy with Air- Indoor NeAe NeAe 1Jll.J.AJ2 144 3.3.1 n4 A Greater Than Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 c 15% Zinc Monitoring of Mechanical Components (B.2.1.24)

Air - Outdoor (External) Loss of Material Fire Water System Vll.G.A-403 3.3.1-130 B (B.2.1.17)

Condensation (Internal) Flow Blockage Fire Water System Vll.G.A-403 3.3.1-130 B (B.2.1.17)

Loss of Material Fire Water System Vll.G.A-403 3.3.1-130 B (B.2.1.17)

Raw Water (Internal) Flow Blockage Fire Water System Vll.G.A-403 3.3.1-130 B (B.2.1.17)

Loss of Material Fire Water System Vll.G.A-403 3.3.1-130 B (B.2.1.17)

Selective Leaching Vll.G.A-47 3.3.1-072 A (8.2.1.22)

Copper Alloy with Air - Indoor NeAe NeAe VI l.J .*A.12 14 4 3.3.1 114 A Greater Than Uncontrolled (External) 15% Zinc (with Cracking External Surfaces Vlll.H.S-454 3.4.1-106 c Monitoring of Chrome Plating)

MechanicalComponen~

(B.2.1.24)

Raw Water (Internal) Flow Blockage Fire Water System Vll.G.A-403 3.3.1-130 B (B.2.1.17)

Loss of Material Fire Water System Vll.G.A-403 3.3.1-130 B (8.2.1.17)

June 6, 2019 Enclosure B Page 32 of 49 Table 3.3.2-14 Fire Protection System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item ManaQement Sprinklers Pressure Boundary Copper Alloy with Raw Water (Internal) Loss of Material Selective Leaching Vll.G.A-47 3.3.1-072 A Greater Than (B.2.1.22) 15% Zinc (with Chrome Platino)

Spray Copper Alloy with Air- Indoor M:>Ae M:>Ae >Jll.J ..A.P 144 a.a.~ ~14 A Greater Than Uncontrolled (External) Cracking External Surfaces VJJl.H.S-454 3.4.1-106 c 15% Zinc Monitoring of MechanicalComponen~

(B.2.1.24J Air - Outdoor (External) Loss of Material Fire Water System Vll.G.A-403 3.3.1-130 B (B.2.1.17)

Condensation (Internal) Flow Blockage Fire Water System Vll.G.A-403 3.3.1-130 B (B.2.1.17)

Loss of Material Fire Water System Vll.G.A-403 3.3.1-130 B (B.2.1.17)

Raw Water (Internal) Flow Blockage Fire Water System Vll.G.A-403 3.3.1-130 B (B.2.1.17)

Loss of Material Fire Water System Vll.G.A-403 3.3.1-130 B (B.2.1.17)

Selective Leaching Vll.G.A-47 3.3.1-072 A (B.2.1.22)

Copper Alloy with Air- Indoor M:>Ae M:>Ae >Jll.J ..A,P 144 a.a.~ ~ 14 A Greater Than Uncontrolled (External) 15% Zinc (with Cracking External Surfaces VJJl.H.S-454 3.4.1-106 c Monitoring of Chrome Plating)

Mechanical Components (B.2.1.24)

Raw Water (Internal) Flow Blockage Fire Water System Vll.G.A-403 3.3.1-130 B (B.2.1.17)

Loss of Material Fire Water System Vll.G.A-403 3.3.1-130 B (B.2.1.17)

June 6, 2019 Enclosure B Page 33 of 49 Table 3.3.2-14 Fire Protection System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Manaaement Valve Body Pressure Boundary Copper Alloy with Air- Indoor NeAe NeAe l,lll.J.,A,i;l ~ 44 a.:u n4 A Greater Than Uncontrolled (External)

Cracking External Surfaces Vll/.H.5-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (B.2.1.24)

Air - Outdoor (External) Loss of Material Fire Water System Vll.G.A-403 3.3.1-130 D (B.2.1.17)

Condensation (Internal) Flow Blockage Fire Water System Vll.G.A-404 3.3.1-131 B (B.2.1.17)

Loss of Material Fire Water System Vll.G.A-403 3.3.1-130 D (B.2.1.17)

Fuel Oil (Internal) Loss of Material Fuel Oil Chemistry Vll.G.AP-132a 3.3.1-069 A (B.2.1.19)

Gas (Internal) None None Vll.J.AP-9 3.3.1-114 A Raw Water (Internal) Flow Blockage Fire Water System Vll.G.AP-197 3.3.1-064 B (B.2.1.17)

Loss of Material Fire Water System Vll.G.AP-197 3.3.1-064 B (B.2.1.17)

Selective Leaching Vll.G.A-47 3.3.1-072 A (B.2.1.22)

June 6, 2019 Enclosure B Page 34 of 49 As a result of the response to RAI 3.3.2.1.1-1a provided in Enclosure A of this letter, SLRA Table 3.3.2-20 on page 3.3-314 of the SLRA is revised as shown below. The table is abbreviated to show only affected line items. Line items not shown from the original SLRA are not revised and remain applicable.

Table 3.3.2-20 Post Accident Sampling System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Manaqement Valve Body Leakage Boundary Copper Alloy with Air- Indoor NaA8 NaA8 1Jff.J,Af2 ~44 3.3.~ n4 A Greater Than Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (B.2.1.24) rrreated Water (Internal) Loss of Material One-Time Inspection Vff.E3.AP-140 3.3.1-022 A (B.2.1 .21)

Water Chemistrv CB.2.1.2) Vff.E3.AP-140 3.3.1-022 B Selective Leaching Vff.E3.AP-32 3.3.1-072 A (B.2.1.22)

June 6, 2019 Enclosure B Page 35 of 49 As a result of the response to RAI 3.3.2.1.1-1 a provided in Enclosure A of this letter, SLRA Table 3.3.2-21 on pages 3.3-318 and 3.3-319 of the SLRA is revised as shown below. The table is abbreviated to show only affected line items. Line items not shown from the original SLRA are not revised and remain applicable.

Table 3.3.2-21 Process Sampling System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Management Piping, piping Leakage Boundary Copper Alloy with Air - Indoor N9Ae N9Ae \lll..J.AP H4 a.a.~ ~~4 A components Greater Than Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanica/Componen~

(8.2.1.24J Raw Water (Internal) Loss of Material Open-Cycle Cooling Water Vll.C1.AP-196 3.3.1-034 A System (B.2.1.11)

Selective Leaching Vll.C1.A-47 3.3.1-072 A (8.2.1.22)

June 6, 2019 Enclosure B Page 36 of 49 Table 3.3.2-21 Process Sampling System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Manaaement Valve Body Leakage Boundary Copper Alloy with Air- Indoor N9Ae N9Ae Vll.J.Al2 ~44 a.:u ~~4 A Greater Than Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (B.2.1.24)

June 6, 2019 Enclosure B Page 37 of 49 As a result of the response to RAI 3.3.2.1.1-1a provided in Enclosure A of this letter, SLRA Table 3.3.2-22 on page 3.3-323 of the SLRA is revised as shown below. The table is abbreviated to show only affected line items. Line items not shown from the original SLRA are not revised and remain applicable.

Table 3.3.2-22 Pump Structure Ventilation System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item ManaQement Piping, piping Pressure Boundary Copper Alloy with Air - Indoor Nooe Nooe lJI 1.J ,,0,12 ~ 44 3.:u ~~4 A components Greater Than Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (8.2.1.24)

Condensation (Internal' None None Vll.J.AP-144 3.3.1-114 A Valve Body Pressure Boundary Copper Alloy with Air- Indoor Nooe Nooe Vll.J.AP H4 3.3.~ ~ H A Greater Than Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 15%Zinc Monitoring of Mechanical Components (8.2.1.24)

Condensation (lnternall None None Vll.J.AP-144 3.3.1-114 A

June 6, 2019 Enclosure B Page 38 of 49 As a result of the response to RAI 3.3.2.1.1-1 a provided in Enclosure A of this letter, SLRA Table 3.3.2-24 on page 3.3-336 of the SLRA is revised as shown below. The table is abbreviated to show only affected line items. Line items not shown from the original SLRA are not revised and remain applicable.

Table 3.3.2-24 Radwaste System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Management Valve Body Leakage Boundary Copper Alloy with Air- Indoor NeA9 NeA9 ~lll.J . ,l\P H4 3.:U 1H A Greater Than Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (B.2.1.24)

Waste Water (Internal) Loss of Material Inspection of Internal Vll.E5.AP-272 3.3.1-095 A Surfaces in Miscellaneous Piping and Ducting Components (B.2.1.25)

Selective Leaching Vll.E5.A-547 3.3.1-072 A (B.2.1.22)

June 6, 2019 Enclosure B Page 39 of 49 As a result of the response to RAI 3.3.2.1.1-1a provided in Enclosure A of this letter, SLRA Table 3.3.2-25 on pages 3.3-341 and 3.3-343 of the SLRA is revised as shown below. The table is abbreviated to show only affected line items. Line items not shown from the original SLRA are not revised and remain applicable.

Table 3.3.2-25 Reactor Building Closed Cooling Water System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Management Piping, piping Leakage Boundary Copper Alloy with Air- Indoor NGAe NGAe Vll.J,,A,12 H4 a.:u ~H A components Greater Than Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 15%Zinc Monitoring of Mechanical Components (B.2.1 .24)

Closed Cycle Cooling Cracking Closed Treated Water Vll.C2.A-473a 3.3.1-160 B Water (Internal) Svstems (B.2.1.12)

Loss of Material Closed Treated Water Vll.C2.AP-199 3.3.1-046 B Svstems CB.2.1.12)

Selective Leaching Vll.C2.AP-43 3.3.1-072 A (B.2.1.22)

June 6, 2019 Enclosure B Page 40 of 49 Table 3.3.2-25 Reactor Building Closed Cooling Water System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Management Valve Body Leakage Boundary Copper Alloy with Air- Indoor l>JeAe l>JeAe ),lll.J ..A.12 H 4 3.3.~ n4 A Greater Than Uncontrolled (External) Cracking External Surfaces Vlll.H.5-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (8.2.1.24)

Closed Cycle Cooling Cracking Closed Treated Water Vll.C2.A-473a 3.3.1-160 B Water (Internal) Systems (B.2.1.12)

Loss of Material Closed Treated Water Vll.C2.AP-199 3.3.1-046 B Systems (B.2.1.12)

Selective Leaching Vll.C2.AP-43 3.3.1-072 A (B.2.1.22)

June 6, 2019 Enclosure B Page 41of49 As a result of the response to RAI 3.3.2.1.1-1 a provided in Enclosure A of this letter, SLRA Table 3.3.2-28 on pages 3.3-362 through 3.3-364 of the SLRA is revised as shown below. The table is abbreviated to show only affected line items. Line items not shown from the original SLRA are not revised and remain applicable.

Table 3.3.2-28 Safety Grade Instrument Gas System Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Manaaement Piping, piping Pressure Boundary Copper Alloy with Air - Dry (Internal) Loss of Material Compressed Air Vll.D.A-764 3.3.1-235 A components Greater Than Monitoring (B.2.1.14) 15% Zinc Air - Indoor NGRe NGRe Vll.J.A~ ~44 a.:u ~H A Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 Monitoring of Mechanical Components (8.2.1.24J Gas (Internal) None None Vll.J.AP-9 3.3.1-114 A

June 6, 2019 Enclosure B Page 42 of 49 Table 3.3.2-28 Safety Grade Instrument Gas System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item ManaQement Piping, piping Structural Integrity Copper Alloy with Air - Dry (Internal) Loss of Material Compressed Air Vll.D.A-764 3.3.1-235 A components (Attached) Greater Than Monitoring (B.2.1.14) 15%Zinc Air - Indoor Nooe Nooe Vll.J.Aµ H4 a.:u H4 A Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 Monitoring of Mechanical Components (8.2.1.24J Valve Body Pressure Boundary Copper Alloy with Air - Dry (Internal) Loss of Material Compressed Air Vll.D.A-764 3.3.1-235 A Greater Than Monitoring (B.2.1.14) 15% Zinc Air - Indoor Nooe Nooe Vll.J ..A,i;l ~44 a.a.~ ~~4 A Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 Monitoring of Mechanical Components (B.2.1.24)

Gas (Internal) None None Vll.J.AP-9 3.3.1-114 A

June 6, 2019 Enclosure B Page 43 of 49 Table 3.3.2-28 Safety Grade Instrument Gas System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Management Valve Body Structural Integrity Copper Alloy with Air - Dry (Internal) Loss of Material Compressed Air Vll.D.A-764 3.3.1-235 A (Attached) Greater Than Monitoring (B.2.1.14) 15% Zinc Air - Indoor NaA0 NaA0 Vll..J.,4,i;! H4 a.:u 1H A Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 Monitoring of Mechanical Components (B.2.1.24J

June 6, 2019 Enclosure B Page 44 of 49 As a result of the response to RAI 3.3.2.1.1-1 a provided in Enclosure A of this letter, SLRA Table 3.3.2-29 on pages 3.3-369 and 3.3-371 of the SLRA is revised as shown below. The table is abbreviated to show only affected line items. Line items not shown from the original SLRA are not revised and remain applicable.

Table 3.3.2-29 Service Water System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Manaqement Piping, piping Leakage Boundary Copper Alloy with Air - Indoor Nooe Nooe lJll.J.Ai;;! ~44 a.:u ~~4 A components Greater Than Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (8.2.1.24)

June 6, 2019 Enclosure B Page 45 of 49 Table 3.3.2-29 Service Water System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Management Valve Body Leakage Boundary Copper Alloy with Air- Indoor N0Ae N0Ae ).lll.J..11,p H4 ~.:u n4 A Greater Than Uncontrolled (External) External Surfaces Vl/l.H.S-454 3.4.1-106 Cracking 15% Zinc Monitoring of Mechanical Components (B.2.1.24)

Raw Water (Internal) Cracking Open-Cycle Cooling Wate1 Vll.C1 .A-473b 3.3.1-160 A Svstem (B.2.1.11)

Loss of Material Open-Cycle Cooling Wate1 Vll.C1.AP-196 3.3.1-034 A Svstem (B.2.1.11)

Selective Leaching Vll.C1.A-47 3.3.1-072 A (B.2.1.22)

June 6, 2019 Enclosure B Page 46 of 49 As a result of the response to RAI 3.3.2.1.1-1 a provided in Enclosure A of this letter, SLRA Table 3.3.2-35 on pages 3.3-398 and 3.3-400 of the SLRA is revised as shown below. The table is abbreviated to show only affected line items. Line items not shown from the original SLRA are not revised and remain applicable.

Table 3.3.2-35 Turbine Building Closed Cooling Water System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Management Piping, piping Leakage Boundary Copper Alloy with Air - Indoor NaAe NaAe Vll.J ..A.12 ~44 3.:u H4 A components Greater Than Uncontrolled (External) 3.4.1-106 Cracking External Surfaces Vlll.H.S-454 15% Zinc Monitoring of Mechanical Components (B.2.1.24)

Closed Cycle Cooling Cracking Closed Treated Water Vll.C2.A-473a 3.3.1-160 B Water (Internal) Systems (B.2.1.12)

June 6, 2019 Enclosure B Page 47 of 49 Table 3.3.2-35 Turbine Building Closed Cooling Water System (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item ManaQement Valve Body Leakage Boundary Copper Alloy with Air- Indoor N9A0 N9A0 i,t((,J,AJ;! ~ 44 a.:u ~~4 A Greater Than Uncontrolled (External) Cracking External Surfaces Vlll.H.S-454 3.4.1-106 15% Zinc Monitoring of Mechanical Components (B.2.1.24}

Closed Cycle Cooling Cracking Closed Treated Water Vll.C2.A-473a 3.3.1-160 B Water (Internal) Systems (B.2.1.12)

Loss of Material Closed Treated Water Vll.C2.AP-199 3.3.1-046 B Svstems CB.2.1.12)

Selective Leaching Vll.C2.AP-43 3.3.1-072 A (B.2.1.22)

June 6, 2019 Enclosure B Page 48 of 49 As a result of the response to RAI 3.3.2.1.1-1 a provided in Enclosure A of this letter, SLRA Table 3.5.2-4 on pages 3.5-135 and 3.5-142 of the SLRA is revised as shown below. The table is abbreviated to show only affected line items. Line items not shown from the original SLRA are not revised and remain applicable.

Table 3.5.2-4 Component Supports (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item ManaQement Supports for ASME Structural Support Brass Bolting Air- Indoor Loss of Preload ASME Section XI, lll.B1 .2.TP-229 3.5.1-087 A Class 2 and 3 Uncontrolled Subsection IWF (B.2.1 .31' piping and N9Re N9Re IV.ER 453 3.1.1 137 G components:

sliding surfaces Cracking ASME Section XI, Vlll.H.S-454 3.4.1-106 E,3 Subsection IWF (B.2.1.31)

June 6, 2019 Enclosure B Page 49 of 49 Table 3.5.2-4 Component Supports (Continued)

Component Intended Material Environment Aging Effect Aging Management NUREG-2191 NUREG-2192 Notes Type Function Requiring Programs Item Table 1 Item Management Supports for Cable Structural Support Brass Bolting Air- Indoor Loss of Preload Structures Monitoring lll.B2.TP-261 3.5.1-088 A Trays, Conduit, Uncontrolled (B.2.1.34)

HVAC Ducts, Tube NeA0 NeA0 IV.ER 453 3.1.1 137 G Track, Instrument Tubing, Non-ASME Cracking Structures Monitoring Vlll.H.S-454 3.4.1-106 E,5 Piping and (B.2.1.34)

Components:

sliding support bearings; sliding support surfaces