ML20211H984

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Provides Comments Re Data Entered in Rvid for Ccnpp,Units 1 2,per GL 92-01,Rev 1,Suppl 1, Reactor Vessel Structural Integrity
ML20211H984
Person / Time
Site: Calvert Cliffs  Constellation icon.png
Issue date: 08/31/1999
From: Cruse C
BALTIMORE GAS & ELECTRIC CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
GL-92-01, TAC-MA0532, TAC-MA0533, NUDOCS 9909030008
Download: ML20211H984 (2)


Text

. f .

s, CharleJ H. Crus) Calvert Chffs Nuclear Power Plant

, Vice President 1650 Calvert Chtfs Parkway Nuclear Energy Lusby, Maryland 20657 410 495-4455 e e A Member of the Constellation Energy Group August 31,1999 U. S. Nuclear Regulatory Commission Washington, DC 20555 ATTENTION: Document Control Desk

SUBJECT:

Calvert Cliffs Nuclear Power Plant Unit Nos.1 & 2; Docket Nos. 50-317 & 50-318 Comments Regarding Data Entered in the Reactor Vessel Integrity Database (RVID) for Calvert Cliffs Nuclear Power Plant, UnitNos. I and 2 (TAC Nos. MA0532 and MA0533) 1 By letter dated July 6,1999 (Reference a), you closed out issues concerning Generic Letter 92-01, Revision 1, Supplement 1, " Reactor Vessel Structural Integrity." In your July 6,1999, letter, you also informed us that you have released the revised Reactor Vessel Integrity Database (RVID) as RVID Version 2 and requested that we provide commen'ts by September 1,1999 regarding the acceptability of the data entered for our reactor vessel.s. Our comments are provided below.

1. For Calvert Cliffs Unit 1, Intermediate Shell D-7206-2, Heat C-4441-2, the correct unirradiated RTNDT value is-30 F as indicated in Reference (b) not 10 F contained in RVID. l
2. For Calvert Cliffs Unit 1, Intermediate Shell Axial Weld 2-203, Heat 20291/12008, the docketed USE value is 110 ft-lbs not the 112 ft-lbs contained in RVID (see Reference c).
3. For Calvert Cliffs Urit 2, intemediate/ Lower Shell Circumferential Weld 9-203, Heat 10137, the docketed unirradiated USE value is 140 ft-lbr not the 137 ft-lbs contained in RVID (see Reference d).
4. For Calvert Cliffs Unit 2, Intermediate Shell Axial Weld 2-203, lleat A8746, the docketed unirradiated USE value is 84 ft-lbs not the 88 f1-lbs contained in RVID (see Reference e).

Should you have questions regarding this matter, we will be pleased to discuss them with you.

Very truly yours, 9909030008 990831 l PDR ADOCN 05000317 s i J ' ' " "

CMC /GT/bjd a n q

a -

l Docum:nt Control Desk

  • August 31,1999 )

Page 2  !

l

REFERENCES:

(a) Letter from Mr. A. W. Dromerick (NRC) to Mr. C. H. Cruse (BGE),

dated July 6,1999, " Closure of TAC Nos. MA0532 and MA0533 -

Response to the Requests for Additional Information to Generic Letter  !

92-01, Revision 1, Supplement 1, Reactor Vessel Structural Integrity, for I Calvert Cliffs Nuclear Power Plant, Unit Nos. I and 2" (b) Letter from Mr. R. E. Denton (BGE) to NRC Document Control Desk, dated July 21,1995, " Request for Approval of Updated Values of Pressurized Thermal Shock (PTS) Reference Temperatures (RTpts)

Values (10 CFR 50.61)"

(c) Letter from Mr. G. C. Creel (BGE) to NRC Document Control Desk, dated June 30,1992," Response to Generic Letter 92-01, Reactor Vessel Structural Integrity,10 CFR 50.54(f)"

(d) Letter from Mr. R. E. Denton (BGE) to NRC Document Control Desk, dated October 8,1993, " Response to NRC's Request for Additional I Information Regarding Baltimore Gas and Electric Company's Response to Generic Letter 92-01 (Unit 1, TAC No. M83446, Unit 2, TAC No. M83447) and Capsule Report BAW 2160 Data Clarification" (e) Letter from Mr. A. W. Dromerick (NRC) to Mr. C. H. Cruse (BGE), j dated November 18,1996, "Calvert Cliffs Reactor Pressure Vessels: l Upper Shelf Energy for Weld Seams 3-203-A, B, C in Unit I and Weld Seams 2-203-A, B, C in Unit 2 (TAC Nos. M83446, M83447, M93228, and M93229)"

l cc: R. S. Fleishman, Esquire H. J. Miller, NRC l J. E. Silberg, Esquire Resident Inspector, NRC S. S. Bajwa, NRC R. I. McLean, DNR A. W. Dromerick, NRC J. H. Walter, PSC

.