ML20114D454
| ML20114D454 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 08/28/1992 |
| From: | Creel G BALTIMORE GAS & ELECTRIC CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9209080209 | |
| Download: ML20114D454 (4) | |
Text
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lGALTIMORC GAS AND ELECTRIC n
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1650 CAtNERT CUFFS PARKWAY
- 1 USBY, MARYLAND 20657-4702 or.omor c entra vu a Pwtoiotm Nijctt an (#4t ner (4#01500 4 4%D L
August 28,1992
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U. S. Nuclear Regulatory Conunission Washington, DC 20555 NITENTION:
Docuruent Control Deck SUluECr:
Cahert Cliffs Nuclear Power Plant Unit Nos.1 & 2: Docket Nos. 50 317 & 5t1318
,t Encs VewihhtenaUiorveilbnce Carole WithirnwaLSek#e 1(UFEP.ENCES:
(a)
Letter from Mt. R, F. Ash (BG&E) to Mr. R. A. Clark (NRC), dated January 20,1982 (b)
Letter from Mr. R. A. Clark (NRC) to Mr. A. E. Ltodvall, Jr.
(BG& E), dated February 2,1982
)
I (c)
Letter from Mr. G. C. Creel (BGAE) to Document Coattal Desk (NRC), dated January 24,1992, Modification of the Withdrawal Schedule for Reactor Vessel Material Specimens for Calvert Cliffs
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Unit #1 (d)
Letter from Mr. D. G. Mcdonald (NRC) to Mr. G. C Creel
' $*l-(BG&E), dated March II,1992 Withdrawal Schedule Change for Reactor Vessel Material Specimens
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(c)
Letter from Mr. G. C. Cicci (BO&E) to Document Control Desk (NhC), dated July 17,1992, Updated Final Safety Analysis Report Gentietncn:
This letter clarifies previous Calvert Cliffs reactor vessel suiveillance capsule correspondence and acquests apptcoal of a schedule change for surveillance capsule witl'Jrawal from Calvert Cliffs
' Unit 2,
[]r,(y 4 '3* 0 9^
040017 U
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9209000207 920828 DR ADOCK 0500o337 PDR
' Document Control Desk August 28,19'12 llage 2 G H !11.K M LON JJ By letter dated January 20,1982 (Reference a). wp' location instead of from the 97prosided you with t withdrawina 'he first suncillarse capsule from the 263 location.
We also informed you we would revise the FSAR to ;clicct the new sequerne to be used for the capsule surveillance program. Your February 2,1982 response (Refuence b), accepted our justification and agned the FSAP, should be revised. The request in our January 2Q.1982, letter was intended for botit units. llence, the 13AR was revised and wp withdrew the 263 k) cation Unit 2 enpsule for the first inten'al instead of the capsule k)cated at 97 llowever, your Febiuary 2,1982, approval letter maJe no mention of Unit 2. We discovered this during the incorporation of the latest capsule withdn.wal schedule (rteferences e and d) into o
Resision 13 of the Updated Final Safet) Analysis Report (UFSAR) (Reference c). Unlike our January 20, 1982 request, our Ictter dated January 24. 1992, requested approval to modify the surveillance withdrawal schedule for Unit 1 only, DAElEjCATION h l
In our January 20,1982 letter (Reference a), we stated that the capsules located at 263
- and 97
- are identicalin composition. 'lhis was incorrect 'Iable 417 of the original FSAR (1/31/80) cleath stated the capsules are not identical. This is also corroborated by our latet dated January 24, 1992 (Reference c), and your response to u., dated hiarch 11,1992 (Reference d). Forty five of the fifty-sevea specimens in each capsule are identical. The capgule located at 97 contanis 12 base metal transuuse specimens while the capsule h>cated at 263 contains 12 standai<l reference innterial s
(Siht) specimens.
Notwithstanding the difference m capsule composition, as long as there is separation iri fluence value for SRh1 specimens (References e and d), it does not matter which of the two cap. tules are withdrawn fi:-t.
J1iQUEST FOR
- APPROVAL, TO MORil.I Tile S1)RVEILIANCE CAPSUI.E i
WITill)RAWAl SQJEDUlli l'OR UNIT 2:
Pursuant to Appendix II of 10 CFR 50, Baltimore Gas and Electric Company (BG&E) hereby requests NRC approval of a change to its schedule for withdrawal of reactor vessci material surveillpce capsales for Calvert Cliffs Unit 2. As described in Clarification 1 abovg the cLpsule at the 263 kication was removed far the fir;t intervalinstead of the capsule at the 97 lccation. The proposed change would, interchange the suncillance capsule scheduled to be withdrawn at the second interval (the 104 capsule) with the one presently scheduled to be withdrawn at the fo irth interval (the 97 capsule). The second interval capsule will be withdriwn during the Unit 21993 refueling outage (currently scheduled to begin hiarch 7,1993). We request that you provide us with your response before the scheduled outage.
The table below shows the original schedule, the 1982 revised schedule, the 1992 revised schedule for Unit 1, and the proposed schedule for Calvert Cliffs Unit 2 surveillance capsule removal.
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- Document Control Dest Augut 28,1992 luge 3 L9911.i.511tLDCgleS3 f
Units 1 & 2 Units 1 & 2 Unit 1 Unit 2 Edinh!lg (Yrs.)
91];itJitl 12S2 (Revite3 )
19911.BssesiJ 1992 (Prevolu!)
1 5
97 263 263 263 14 1N 104 97 97 23 2M 2h4 284 2M 30 263 97 IN 104 35 277 277 277 277 40 83 83 83 83 Capsule 104* contains SRhl Charpy impact specitacas while capsule 970 contains base metal (transverse) Charpy impact spe All other sets of specimens are identiept. The 26)gimens in the conesponding coinpartment.
location capsule pulled for th : first interval al.'o contained SRM specimens. The 263 and 104 capsuk are the only two capsules from the original sutveillance program to contain SRM specimens.
In a surveillance program, it is desirable to test SRhj specimens at widely separated values of fluence. llence, deferring the withdrawal of the 104 capsule until later in vc:. sci life (30-year inte' val) will provide the desired separation in fluence values for the two SRM specimens. The original suncillance schedule (before it was revised) also nepported testing of the SRM specimen at widely separated values of fluence.
The proposed schedule change is consister,t with the one appraved for Unit 1 (Reference d). Upon approval, this change will be tellected in the next UFSAR update so tual both urJ.ts have the same withdrawal r.chedule i
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Document Control Desk August 28,1992
,Page 4 Should you have any further questions legarding this mattet, we will bo pleased it discuu them with you.
Very truly yours,
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STATE OF
!!ARYLAND TO WIT I COUNTY OF CALVERT 1
1 herehy certify that on the M' day of (mgfb l' 92 befoie me, the subscriber, a Notary Public of the State of hlaryland in dnd for lja /ve,el ('ra oh]
personally appeared Gent;;e C. Creel, being duly sworn, und r,tates that he is Vice Pr6sident of the 13altimore Gas and lilectric Corupany, a corporation of the State of hiaiyland; that he provides the foregoing response for the purposes thencin 1,et forth; that the statements made are true and correct to the best of hh knowledge, inforination, and belief; and that he was authorized to provide the response on behalf of said Coiporation.
WITK200 my lland and Notarial Scal:
_[dc[<//c [ C/I/2 Notary Public 7
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hty Coromission thpires:
bI4ua tv_ c2 /@/
/ Date GL C/GT/g'/dhn ec:
D. A. lirune, Esquire J,11. Silberg, Esquire R. A. Capra, NRC 4 -
D. G. hic Donald, J r., N RC T. T h1artin, NRC P. R. Wilson, NRC R.1. hiclean, DN R J. II. Walter, PSC
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