ML061380109

2006/05/15-Oyster Creek - Supplemental Information for Response to NRC Request for Additional Information, Dated March 30, 2006, Related to Plant License Renewal Application

ML061380109
Person / Time
Site:	Oyster Creek
Issue date:	05/15/2006
From:	Gallagher M AmerGen Energy Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
%dam200606, 2130-06-20332, TAC MC7624
Download: ML061380109 (13)

Text

AmerGen SM Michael P. Gallagher, PE Vice President License Renewal Projects Telephone 61o.765.5958 www.exeloncorp.com michaelp.gallagher@exeloncorp.com An Exelon Company 10 CFR 50 10 CFR 51 10 CFR 54 AmerGen 200 Exelon Way KSA/2-E Kennett Square, PA 19348 2130-06-20332 May 15, 2006 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555 Oyster Creek Generating Station Facility Operating License No. DPR-16 NRC Docket No. 50-219

Subject:

Supplemental Information for Response to NRC Request for Additional Information, dated March 30, 2006, Related to Oyster Creek Generating Station License Renewal Application (TAC No. MC7624)

Reference:

(1) "Request for Additional Information for the Review of the Oyster Creek Nuclear Generating Station, License Renewal Application (TAC No.MC7624)," dated March 30, 2006 (2) Response to NRC Request for Additional Information related to Sections 4.2 and 4.7 of the Oyster Creek Generating Station License Renewal Application (TAC No. MC7624), dated April 26, 2006 In the reference (1) letter, the NRC requested additional information related to Sections 4.2 and 4.7 of the Oyster Creek Generating Station License Renewal Application (LRA). Reference (2)provided the information requested by the NRC staff, however, as noted in the response to RAI 4.2.2-1, AmerGen planned to supplement the response with the results of the calculations of the Upper Shelf Energy equivalent margin analysis for non-limiting reactor vessel beltline materials.

The results of these additional calculations are provided in the enclosure.

If you have any questions, please contact Fred Polaski, Manager License Renewal, at 610-765-5935.

I declare under penalty of perjury that the foregoing is true and correct.Respectfully, Executed on 05 /15'-0O Michael P. Gallagher I Vice President, License Renewal AmerGen Energy Company, LLC A41 17 U.S. Nuclear Regulatory Commission May 15, 2006 Page 2 of 2

Enclosure:

Upper Shelf Energy Equivalent Margin Analysis Results For Non-limiting Reactor Vessel Beltline Materials.

cc: Regional Administrator, USNRC Region I, w/o Enclosure USNRC Project Manager, NRR -License Renewal, Safety, w/Enclosure USNRC Project Manager, NRR -License Renewal, Environmental, w/o Enclosure USNRC Project Manager, NRR -OCGS, w/o Enclosure USNRC Senior Resident Inspector, OCGS, w/o Enclosure Bureau of Nuclear Engineering, NJDEP, w/Enclosure File No. 05040 Enclosure Page 1 of 10 Enclosure Upper Shelf Energy Equivalent Margin Analysis Results For Non-limiting Reactor Vessel Beltline Materials Enclosure Page 2 of 10 OCGS RPV Plate Equivalent Margin Analysis R/2 PLATE (OCGS Plate Number 564-03A)(OCGS Code Number G-8-7)Surveillance Plate USE:%Cu = 0.17 Capsule Fluence = 0.746x10 1 8 n/cm 2 Measured % Decrease = 0.6 (Charpy Curves)R.G. 1.99 Predicted

% Decrease = 14 (R.G. 1.99, Figure 2)Lower Intermediate Beltline Plate USE:%Cu = 0.21 50 EFPY Peak ID Fluence = 6.97 x 1018 n/cm 2 50 EFPY 1/4T Fluence = 4.39 x 101" n/cm 2 R.G. 1.99 Predicted

% Decrease = 24.8 (R.G. 1.99, Figure 2)Adjusted % Decrease = N/A (R.G. 1.99, Position 2.2)24.8% s 29.5%, so plate is bounded by equivalent margin analysis.

Enclosure Page 3 of 10 OCGS RPV Plate Equivalent Margin Analysis BWR/2 PLATE (OCGS Plate Number 564-03B)(OCGS Code Number G-8-8)Surveillance Plate USE:%Cu = 0.17 Capsule Fluence = 0.746x1018 n/cm 2 Measured%

Decrease = 0.6 (Charpy Curves)R.G. 1.99 Predicted

% Decrease = 14 (R.G. 1.99, Figure 2)Lower Intermediate Beltline Plate USE:%Cu = 0.18 50 EFPY Peak ID Fluence = 6.97 x 1018 n/cm 2 50 EFPY 1/4T Fluence = 4.39 x 1018 n/cm 2 R.G. 1.99 Predicted

% Decrease = 22.3 (R.G. 1.99, Figure 2)Adjusted % Decrease = N/A (R.G. 1.99, Position 2.2)22.3% s 29.5%, so plate is bounded by equivalent margin analysis.

Enclosure Page 4 of 10 OCGS RPV Plate Equivalent Margin Analysis BWR/2 PLATE (OCGS Plate Number 564-03C)(OCGS Code Number G-8-6)Surveillance Plate USE:%Cu Capsule Fluence= 0.17= 0.746x1018 n/cm 2 Measured % Decrease = 0.6 (Charpy Curves)R.G. 1.99 Predicted

% Decrease = 14 (R.G. 1.99, Figure 2)Lower Intermediate Beltline Plate USE:%Cu 50 EFPY Peak ID Fluence 50 EFPY 1/4T Fluence= 0.20= 6.97 x 1018 n/cm 2= 4.39 x 10 1 8 n/cm 2 R.G. 1.99 Predicted

% Decrease = 24.0 (R.G. 1.99, Figure 2)Adjusted % Decrease = N/A (R.G. 1.99, Position 2.2)24.0% 5 29.5%, so plate is bounded by equivalent margin analysis.

Enclosure Page 5 of 10 OCGS RPV Plate Equivalent Margin Analysis BWR/2 PLATE (OCGS Plate Number 564-03D)(OCGS Code Number G-307-1)Surveillance Plate USE:%Cu = 0.17 Capsule Fluence = 0.746x1 018 n/cm 2 Measured % Decrease = 0.6 (Charpy Curves)R.G. 1.99 Predicted

% Decrease = 14 (R.G. 1.99, Figure 2)Lower Beltline Plate USE:%Cu = 0.17 50 EFPY Peak ID Fluence = 3.76 x 1018 n/cm 2 50 EFPY 1/4T Fluence = 2.37 x 1 018 n/cm 2 R.G. 1.99 Predicted

% Decrease = 18.6 (R.G. 1.99, Figure 2)Adjusted % Decrease = N/A (R.G. 1.99, Position 2.2)18.6% s 29.5%, so plate is bounded by equivalent margin analysis.

Enclosure Page 6 of 10 OCGS RPV Plate Equivalent Margin Analysis BWRU2 PLATE (OCGS Plate Number 564-03E)(OCGS Code Number G-308-1)Surveillance Plate USE:%Cu = 0.17 Capsule Fluence = 0.746x10 1 8 n/cm 2 Measured%

Decrease = 0.6 (CharpyCurves)

R.G. 1.99 Predicted

% Decrease = 14 (R.G. 1.99, Figure 2)Lower Beltline Plate USE:%Cu = 0.17 50 EFPY Peak ID Fluence = 3.76 x 1018 n/cm 2 50 EFPY 1/4T Fluence = 2.37 x 1018 n/cm 2 R.G. 1.99 Predicted

% Decrease = 18.6 (R.G. 1.99, Figure 2)Adjusted % Decrease = N/A (R.G. 1.99, Position 2.2)18.6% s 29.5%, so plate is bounded by equivalent margin analysis.

Enclosure Page 7 of 10 OCGS RPV Plate Equivalent Margin Analysis BWR/2 PLATE (OCGS Plate Number 564-03F)(OCGS Code Number G-307-5)Surveillance Plate USE:%Cu = 0.17 Capsule Fluence = 0.746x1 018 n/cm 2 Measured % Decrease = 0.6 (Charpy Curves)R.G. 1.99 Predicted

% Decrease = 14 (R.G. 1.99, Figure 2)Lower Beltline Plate USE:%Cu = 0.27 50 EFPY Peak ID Fluence = 3.76 x 1018 n/cm 2 50 EFPY 1/4T Fluence = 2.37 x 1018 n/cm 2 R.G. 1.99 Predicted

% Decrease = 26.0 Adjusted % Decrease = N/A (R.G. 1.99, Figure 2)(R.G. 1.99, Position 2.2)26.0% s 29.5%, so plate is bounded by equivalent margin analysis.

Enclosure Page 8 of 10 OCGS RPV Weld Equivalent Margin Analysis BWR/2 WELD. (OCGS Weld Numbers 2-564A, 2-564B, and 2-564C)(OCGS Heat Number 86054B)Surveillance Weld USE:%Cu Capsule Fluence= 0.28= 0.746xl 018 n/cm 2 Measured % Decrease = Not reported (Charpy Curves)R.G. 1.99 Predicted

% Decrease = Not reported (R.G. 1.99, Figure 2)Beltline Lower Intermediate Shell Axial Weld USE:%Cu 50 EFPY Peak ID Fluence 50 EFPY 1/4T Fluence= 0.206= 6.16 x 10 1 8 n/cm 2= 3.88 x 1018 n/CM2 R.G. 1.99 Predicted

% Decrease = 28.6 (R.G. 1.99, Figure 2)Adjusted % Decrease = N/A (R.G. 1.99, Position 2.2)28.6% s 39%, so weld is bounded by equivalent margin analysis.

Enclosure Page 9 of 10 OCGS Vessel RPV Welds Equivalent Margin Analysis BWR/2 WELD. (OCGS Weld Numbers 2-564D, 2-564E, and 2-564F)(OCGS Heat Number 86054B)Surveillance Weld USE:%Cu = 0.28 Capsule Fluence = 0.746x1018 n/cm 2 Measured % Decrease = Not reported (Charpy Curves)R.G. 1.99 Predicted

% Decrease = Not reported (R.G. 1.99, Figure 2)Beltline Lower Shell Axial Weld USE:%Cu = 0.214 50 EFPY Peak ID Fluence = 3.71 x 10'8 n/cm 2 50 EFPY 1/4T Fluence = 2.34 x 1018 n/cm 2 R.G. 1.99 Predicted

% Decrease = 25.5 (R.G. 1.99, Figure 2)Adjusted % Decrease = N/A (R.G. 1.99, Position 2.2)25.5% s 39%, so weld is bounded by equivalent margin analysis.

Enclosure Page 10 of 10 OCGS Vessel RPV Weld Equivalent Margin Analyses BWR/2 WELD, (OCGS Weld Number 3-564)(OCGS Heat Number 1248)Surveillance Weld USE:%Cu = 0.28 Capsule Fluence = 0.746x111 n/cm 2 Measured % Decrease = Not reported (Charpy Curves)R.G. 1.99 Predicted

% Decrease = Not reported (R.G. 1.99, Figure 2)Beltline Lower Shell to Lower Intermediate Shell Circumferential Weld USE:%Cu = 0.214 50 EFPY Peak ID Fluence = 3.76 x 1018 n/cm 2 50 EFPY 1/4T Fluence = 2.37 x 1018 n/cm 2 R.G. 1.99 Predicted

% Decrease = 25.0 (R.G. 1.99, Figure 2)Adjusted % Decrease = N/A (R.G. 1.99, Position 2.2)25.0% s 39%, so weld is bounded by equivalent margin analysis.

Oyster Creek Document Distribution Sheet TITLE/

SUBJECT:

Supplemental Information for Responses to NRC RAI 4.2.2-1 Related to OCGS License Renewal Application (TAC No. MC7624)COGNIZANT INDIVIDUAL:

Fred Polasid SPECIAL HANDLING INSTRUCTIONS:

FILE STRUCTURE:

• -already distributed, CC'd E -Electronically Distributed X -Hard Copy OC VP & Direct Reports OC VP: T. Rausch SVP EA: V. Aggarwal Plant Manager: J. Randich Engineering:

M. Button Maintenance:

J. Magee Training:

J. Vaccaro Reg Assurance:

J. Kandasamy HR: H. Behrens Outage: W. Carter Rad Pro/Chem: Work Management:

C. Wilson AmerGen/Exelon VP L&RA: T. O'Neill Env. Dir Acting: S. Sklenar Environmental:

S. Sklenar Licensing:

P. Cowan Licensing:

D. Helker Licensing:

V. Gallimore KS Document Ctr.KS Emerg. Prep: J. Karkoska OCAB-2 OCAB-2 MOB OCAB-3 NMB Bldg 12 OCAB-2 OCAB-2 OCAB-2 AOB OCAB-2 Cantera KS KS KSA3-E KSA 3-E KSA 3-E KSA 1-N KS E E E E E E E E x Oyster Creek Operations:

R. Racholski Operations:

J. Dostal Operations/Rx Engg.: F. Buckley Work Control: P. Bloss Radiation Protection:

J. Renda Env/Chemistry:

C. Connelly Security:

K. Dreher Engineering:

J. O'Rourke I&C/NSSS:

J. Frank BOP Engineering:

J. Camire Eng. Programs:

R Skelskey Mech/Str Design: H. Ray E/I&C Des: D. Barnes Maintenance:

R Laning Communications:

R. Benson NOS: D. Peiffer Emerg Prep: K. Poletti Lic. Renewal: T. E. Quintenz Chem/Env Dept Files Reg Assurance Dept Files Other K. Barnes C. Duffy Guy DeBoo J. Hoddy MOB MOB OCAB-3 MOB AOB AOB OCAB-2 OCAB-3 OCAB-3 OCAB-3 OCAB-3 OCAB-3 OCAB-3 NMB OCAB-2 OCAB-2 OCAB-2 AOB E E E E 05040 E External Distribution NJBNE -P. Baldauf NSRB x OCAB-2 OCAB-2 Cantera KSA2-E KSA2-E E E E E E M. Guthrie STANDARD FILE CODE / RECORD RECORD RECORDSNUBRRCRNMEDT RETENTION (REFERENCE

1. ) NUMBER RECORD NAME DATE SCHEDULE #2130-06-20332 Supplemental Information for 5115106 Responses to NRC RAI 4.2.2-1. Non- 5//0 limiting Reactor Vessel Beltline Materials