ML12166A325
| ML12166A325 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 06/14/2012 |
| From: | Gallagher M Exelon Generation Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML12166A325 (6) | |
Text
10 CFR 50 10CFR51 10 CFR54 June 14,2012 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001 Limerick Generating Station, Units 1 and 2 Facility Operating License Nos. NPF-39 and NPF-85 NRC Docket Nos. 50-352 and 50-353
Subject:
10 CFR 54.21(b) Annual Amendment to the Limerick Generating Station License Renewal Application
Reference:
Exelon Generation Company, LLC letter from Michael P. Gallagher to NRC Document Control Desk, "Application for Renewed Operating Licenses", dated June 22, 2011 In the Referenced letter, Exelon Generation Company, LLC (Exelon) submitted the License Renewal Application (LRA) for the Limerick Generating Station, Units 1 and 2 (LGS).
The Enclosure to this letter provides the annual amendment to the LGS LRA in accordance with 10 CFR 54.21 (b). This amendment identifies changes to the current licensing basis (CLB) that materially affect the contents of the LGS LRA. This amendment is required to be submitted each year following submittal of the LRA and at least three months before scheduled completion of NRC review of the LRA.
This letter and its enclosure contain no new or revised regulatory commitments.
If you have any questions, please contact Mr. AI Fulvio, Manager, Exelon License Renewal, at 610-765-5936.
U.S. Nuclear Regulatory Commission June 14, 2012 Page 2 I declare under penalty of perjury that the foregoing is true and correct.
Executed on 0'-/1-Zt>/)..
Respectfully, Vice President - License Renewal Projects Exelon Generation Company, LLC
Enclosure:
10 CFR 54.21 (b) Update - Amendment to Limerick Generating Station LRA cc:
Regional Administrator - NRC Region I NRC Project Manager (Safety Review), NRR-DLR NRC Project Manager (Environmental Review), NRR-DLR NRC Project Manager, NRR-DORL Limerick Generating Station NRC Senior Resident Inspector, Limerick Generating Station R. R. Janati, Commonwealth of Pennsylvania
Enclosure Page 1 of 4 ENCLOSURE 10 CFR 54.21(b) Update Amendment to License Renewal Application for Limerick Generating Station
Enclosure Page 2 of 4 Introduction The License Renewal Rule, 10 CFR 54.21(b), requires that each year following submittal of a License Renewal Application (LRA), an amendment must be submitted to identify changes to the facility current licensing basis (CLB) that materially impact the content of the LRA. In accordance with this requirement, Exelon Generation Company, LLC (Exelon) has completed the review of the Limerick Generating Station CLB changes since the submittal of the LRA. This Enclosure provides its results and identifies the section of the LRA that is impacted by the CLB changes.
Review Process The annual update review is a procedurally controlled process to satisfy the requirements of 10 CFR 54.21(b). Specifically, the process is used to identify and evaluate changes to the plant CLB by reviewing plant documents, which include but are not limited to the following:
Design Change Packages (DCPs)
UFSAR Updates Licensing Correspondence Piping & Instrumentation Drawings (P&IDs)/Boundary Drawings Generic Safety Issues TLAAs Changes to the text or supporting license renewal boundary drawings of the LRA as submitted on June 22, 2011 are identified as part of the review. These changes are then reviewed by a technical verification team to determine those changes to the CLB that materially affect the LRA for inclusion in this Enclosure. Changes to the LRA described in formal Exelon correspondence to the NRC, including RAI responses, are not included in the annual update because 1) these changes were not initiated due to changes in the Limerick CLB, and 2) this information has already been incorporated into the NRCs LRA review.
Review Results The review identified one (1) design change that impacts the LRA. This design change resulted in a new material being added to the High Pressure Coolant Injection System (HPCI). The change and its impact on the LRA are discussed below.
High Pressure Coolant Injection System (HPCI) Engineering Change Subsequent to the June 22, 2011, submittal of the LRA, Limerick implemented a design change that impacts the content of Table 3.2.2-3, High Pressure Coolant Injection System (HPCI). As a result of the addition of stainless steel high point vents and ball valves on the HPCI header, LRA Table 3.2.2-3 has been modified as shown below.
There were no other impacts to the LRA identified during this review.
Enclosure Page 3 of 4 As a result of the annual update review, LRA Table 3.2.2-3, pages 3.2-44 and 3.2-50, are revised as shown below with inserted text shown in bold italics:
Table 3.2.2-3 High Pressure Coolant Injection System (Continued)
Component Type Intended Function Material Environment Aging Effect Requiring Management Aging Management Programs NUREG-1801 Item Table 1 Item Notes Air - Indoor, Uncontrolled (External)
Loss of Material External Surfaces Monitoring of Mechanical Components (B.2.1.25)
V.D2.E-26 3.2.1-40 A
Air/Gas - Wetted (Internal)
Loss of Material Inspection of Internal Surfaces in Miscellaneous Piping and Ducting Components (B.2.1.26)
V.D2.E-27 3.2.1-46 A
One-Time Inspection (B.2.1.22)
V.D2.EP-60 3.2.1-16 A
Loss of Material Water Chemistry (B.2.1.2)
V.D2.EP-60 3.2.1-16 A
Steam (Internal)
Wall Thinning Flow-Accelerated Corrosion (B.2.1.10)
V.D2.E-07 3.2.1-11 A, 3 One-Time Inspection (B.2.1.22)
V.D2.EP-60 3.2.1-16 A
Carbon Steel Treated Water (Internal)
Loss of Material Water Chemistry (B.2.1.2)
V.D2.EP-60 3.2.1-16 A
Air - Indoor, Uncontrolled (External)
None None V.F.EP-18 3.2.1-63 A
One-Time Inspection (B.2.1.22)
V.D2.EP-73 3.2.1-17 A
Leakage Boundary Stainless Steel Treated Water (Internal)
Loss of Material Water Chemistry (B.2.1.2)
V.D2.EP-73 3.2.1-17 A
Air - Indoor, Uncontrolled (External)
Loss of Material External Surfaces Monitoring of Mechanical Components (B.2.1.25)
V.D2.E-26 3.2.1-40 A
Air/Gas - Wetted (Internal)
Loss of Material Inspection of Internal Surfaces in Miscellaneous Piping and Ducting Components (B.2.1.26)
V.D2.E-27 3.2.1-46 A
Piping, piping components, and piping elements Pressure Boundary Carbon Steel Air - Indoor, Uncontrolled (External)
Loss of Material External Surfaces Monitoring of Mechanical Components (B.2.1.25)
V.D2.E-26 3.2.1-40 A
Enclosure Page 4 of 4 Table 3.2.2-3 High Pressure Coolant Injection System (Continued)
Component Type Intended Function Material Environment Aging Effect Requiring Management Aging Management Programs NUREG-1801 Item Table 1 Item Notes Lubricating Oil (Internal)
Loss of Material One-Time Inspection (B.2.1.22)
V.D2.EP-77 3.2.1-49 A
One-Time Inspection (B.2.1.22)
V.D2.EP-60 3.2.1-16 A
Loss of Material Water Chemistry (B.2.1.2)
V.D2.EP-60 3.2.1-16 A
Steam (Internal)
Wall Thinning Flow-Accelerated Corrosion (B.2.1.10)
V.D2.E-07 3.2.1-11 A, 3 One-Time Inspection (B.2.1.22)
V.D2.EP-60 3.2.1-16 A
Treated Water (External)
Loss of Material Water Chemistry (B.2.1.2)
V.D2.EP-60 3.2.1-16 A
One-Time Inspection (B.2.1.22)
V.D2.EP-60 3.2.1-16 A
Carbon Steel Treated Water (Internal)
Loss of Material Water Chemistry (B.2.1.2)
V.D2.EP-60 3.2.1-16 A
Air - Indoor, Uncontrolled (External)
None None V.F.EP-18 3.2.1-63 A
One-Time Inspection (B.2.1.22)
V.D2.EP-73 3.2.1-17 A
Pressure Boundary Stainless Steel Treated Water (Internal)
Loss of Material Water Chemistry (B.2.1.2)
V.D2.EP-73 3.2.1-17 A
Air - Indoor, Uncontrolled (External)
Loss of Material External Surfaces Monitoring of Mechanical Components (B.2.1.25)
V.D2.E-26 3.2.1-40 A
Valve Body Structural Support Carbon Steel Air/Gas - Wetted (Internal)
Loss of Material Inspection of Internal Surfaces in Miscellaneous Piping and Ducting Components (B.2.1.26)
V.D2.E-27 3.2.1-46 A