ML20129D316

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Discusses Closeout for Licensee Response to GL 92-01,Rev 1, Suppl 1, Reactor Vessel Structural Integrity
ML20129D316
Person / Time
Site: Peach Bottom  Constellation icon.png
Issue date: 09/25/1996
From: James Shea
NRC (Affiliation Not Assigned)
To: Hunger G
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
References
GL-92-01, GL-92-1, TAC-M92712, TAC-M92713, NUDOCS 9609300037
Download: ML20129D316 (4)


Text

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[p. -4 UNITED STATES j

s* NUCLEAR REGULATORY COMMISSION g WASHINGTON, D.C. 20066 4001 ,

'% ,o#g September 25, 1996 Mr. George A. Hunger, Jr.

Director-Licensing, MC 62A-1 PECO Energy Company Nuclear Group Headquarters l Correspondence Control Desk l

P.O. Box No. 195 Wayne, PA 19087-0195

SUBJECT:

CLOSE0VT FOR PECO ENERGY COMPANY (PECO) RESPONSE TO GENERIC LETTER 92-01, REVISION 1, SUPPLEMENT 1, PEACH BOTTOM ATOMIC POWER PLANT, UNITS 2 AND 3 (TAC NOS. M92712 AND M92713) ,

Dear Mr. Hunger:

On May 19, 1995, the NRC issued Generic Letter 92-01, Revision 1, Supplement 1 (GL 92-01, Rev. 1, Supp. 1), " Reactor Vessel Structural Integrity." In '

GL 92-01, Rev.1, Supp.1, the NRC requested that nuclear licensees perform a review of.their reactor pressure vessel structural integrity assessments in  ;

order "to identify, collect, and report.any new data pertinent te [the] l analysis of [the] structural integrity of their reactor pressure vessels i

(RPVs) and to assess the impact of that data on their RPV integrity analyses

relative to the requirements of Section 50.60 of Title 10 of the Code of i l Federal Regulatfons (10 CFR 50.60), 10 CFR 50.61, Appendices G and H to 10 CFR Part 50 (which encompass pressurized thermal shock (PTS) and upper shelf energy (USE) evaluations), and any potential impact on low temperature overpressure (LTOP) limits or pressure-temperature (P-T) limits."

More specifically, in GL 92-01, Rev.1, Supp.1, the NRC requested that addressees provide the following information in their responses:

(1) a description of those actions taken or planned to locate all data relevant to the determination of RPV integrity, or an explanation of why the existing data base is considered complete as previously submitted; (2) an assessment of any change in best-estimate chemistry based on .

consideration of all relevant data; (3) a determination of the need for the use of the ratio procedure in accordance with the established Position 2.1 of Regulatory Guide (RG) 1.99, Revision '2, for those licensees that use surveillance data to provide a basis for the RPV integrity evaluation; and (4) a written report providing any newly acquired data as specified above i i and (1) the results of any necessary revisions to the evaluations of RPV i

! integrity in accordance with the requirements of 10 CFR 50.60, 1 10 CFR 50.61, Appendices G and H to 10 CFR Part 50, and any potential  !

impact on the LTOP and P-T limits in the technical specifications, or (2) a certification that previously submitted evaluations remain valid.

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NRC FM.E CENTER C8PY DF" b 9609300037 960925 i PDR ADOCK 05000277 l p PDR

I l .

G. Hunger, Jr. 1

! Revised evaluations and certifications were to include consideration of Position 2.1 of RG 1.99, Revision 2, as applicable, and any new data. The information in Reporting Item (1) was to be submitted within 90 days of the i issuance of the GL. The information in Reporting Items (2) - (4) was to be

! submitted within 6 months of the issuance of the GL.

The NRC staff has noted that PEC0 submitted a response to Reporting Item (1)

! on August 15, 1995, and a response to Reporting Items (2) - (4) on November 20, 1995. Your August 15, 1995 response indicates that PECO is an l active participant in the BWR Vessel and Internals Project (BWRVIP) and that l PEC0 endorsed the BWRVIP response on these matters dated August 10, 1995.

PEC0's November 20, 1995 response indicated that PECO also endorsed the BWRVIP response dated November 15, 1995. Since PEC0 has submitted the requested responses and has not indicated that the previously submitted evaluations are not valid, the staff considers the RPV integrity data for Peach Bottom Atomic Power Station, Units 2 and 3, to be complete at this time. The staff therefore concludes that your efforts regarding GL 92-01, Rev. 1, Supp. 1 are complete. This completes all actions related to the referenced TAC Numbers.

The staff has also noted that you may be waiting for some of the Owners Groups' Reactor Vessel Working Groups to complete activities to establish a i comprehensive RPV information database. These assessments are expected to be  ;

completed by the summer of 1997. We request that you provide us with the '

results of the Owners Groups' programs relative to your plant. When you l provide this information, the staff may open a plant-specific TAC No. for its l review.

l l Thank you for your cooperation.

l Sincerely,

! /S/

Joseph W. Shea, Project Manager Project Directorate I-2 Division of Reactor Projects - I/II i Office of Nuclear Reactor Regulation l l l Docket Nos. 50-277/278 l cc: See next page l l DISTRIBUTION:

Docket File OGC ACRS PUBLIC DMcDonald WPasciak, RGN I PDI-2 Reading JStolz SVarga JShea JZwolinski M0'Brien 0FFICE RDl/2[CkD# PDIh/h PDI-2/PDA//

pE v w NAME MOBr(en JStR hO JStolz /A DATE 61/N/96 h/i3/96 9/23/96 0FFICIAL RECORD COPY FILENAME: G:\SHEA\ PEACH \PB92712.LTR

8 . .

G. Hunger, Jr. Revised evaluations and certifications were to include consideration of Position 2.1 of RG 1.99, Revision 2, as applicable, and any new data. The information in Reporting Item (1) was to be submitted within 90 days of the issuance of the GL. The information in Reporting Items (2) - (4) was to be -

submitted within 6 months of the issuance of the GL.

The NRC staff has noted that PECO submitted a response to Reporting Item (1) on August 15, 1995, and a response to Reporting Items (2) - (4) on November 20, 1995. Your August 15, 1995 response indicates that PECO is an active participant in the BWR Vessel and Internals Project (BWRVIP) and that PECO endorsed the BWRVIP response on these matters dated August 10, 1995.

PECO's November 20, 1995 response indicated that PEC0 also endorsed the BWRVIP response dated November 15, 1995. Since PEC0 has submitted the requested responses and has not indicated that the previously submitted evaluations are not valid, the staff considers the RPV integrity data for Peach Bottom Atomic Power Station, Units 2 and 3, to be complete at this time. The staff therefore concludes that your efforts regarding GL 92-01, Rev.1, Supp.1 are complete. This completes all actions related to the referenced TAC Numbers.

The staff has also noted that you may be waiting for some of the Owners Groups' Reactor Vessel Working Groups to complete activities to establish a comprehensive RPV information database. These assessments are expected to be completed by the summer of 1997. We request that you provide us with the results of the Owners Groups' programs relative to your plant. When you provide this information, the staff may open a plant-specific TAC No. for its review.

Thank you for your cooperation.

Sin e e y, i 9

  1. C 1 I Y Jose; W. Shea, Project Manager .

Puoj t Directorate I-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket Nos. 50-277/278 cc: See next page l

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, .. Mr. G:orge A. Hunger, Jr. Peach Bottom Atomic Power Station, l PECO Energy Company Units 2 and 3 cc:-

! J. W. Durham, Sr., Esquire Mr. Rich R. Janati, Chief l Sr. V.P. & General Counsel Division of Nuclear Safety l PECO Energy Company Pennsylvania Department of l 2301 Market Street, S26-1 Environmental Resources l Philadelphia, Pennsylvania 19101 P. O. Box 8469

Harrisburg, Pennsylvania 17105-8469 l PECO Energy Company ATTN
Mr. G. R. Rainey, Vice President Board of Supervisors Peach Bottom Atomic Power Station Peach Bottom Township Route 1, Box 208 R. D. #1 l Delta, Pennsylvania 17314 Delta, Pennsylvania 17314 PECO Energy Company Public Service Comission of Maryland ATTN: Regulatory Engineer, A4-5S Engineering Division Peach Bottom Atomic Power Station Chief Engineer Route 1, Box 208 6 St. Paul Centre Delta, Pennsylvania 17314

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Baltimore, MD 21202-6806 Resident Inspector Mr. Richard McLean U.S. Nuclear Regulatory Comission Power Plant and Environmental Peach Bottom Atomic Power Station Review Division P.O. Box 399 Department of Natural Resources Delta, Pennsylvania 17314 B-3, Tawes State Office Building Annapolis, Maryland 21401 Regional Administrator, Region I U.S. Nuclear Regulatory Comission Dr. Judith Johnsrud 475 Allendale Road National Energy Comittee King of Prussia, Pennsylvania 19406 Sierra Club 433 Orlando Avenue .

Mr. Roland Fletcher State Colleg'e, PA 16803 Department of Environment 201 West Preston Street Bryan W. Gorman, Manager Baltimore, Maryland 21201 Joint Owners / External Affairs Interface Public Service Electric and Gas -

A. F. Kirby, III Company External Operations - Nuclear P.O. Box 236 Delmarva Power & Light Company Hancocks Bridge, NJ 08038-0236 P.O. Box 231

-Wilmington, DE 19899 PECO Energy Company G. D. Edwards, Plant Manager Peach Bottom Atomic Power Station Route 1, Box 208 Delta, Pennsylvania 17314 i

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