NUREG-0651, Ack Receipt of 800402 & 0229 Ltrs.Discusses Criteria Used in Granting or Denying Amend requests.NUREG-0651, Evaluation of Steam Generator Tube Rupture Events, Encl. W/O Encl
| ML17339B081 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 05/20/1980 |
| From: | Varga S Office of Nuclear Reactor Regulation |
| To: | Oncavage M ONCAVAGE, M. |
| References | |
| NUDOCS 8006090068 | |
| Download: ML17339B081 (6) | |
Text
~y SO SSQ Docket Nos. 50-250, and 50-251 Mr. Mark P.
Oncavage 12200 S.H. 110th Avenue Miami, F'1orida 33176
Dear Mr. Oncavage:
This will acknowledge receipt of your letter of April 2, 1980.
Your February 29, 1980 letter to Mr. Eisenhut was not treated as an inter-vention petition per your earlier discussion ytith Mr0 Grotenhuis
- and, in light of your April 2 letter, this will,not change..
Your letter dated February 29, 1980 concerning the Florida Power and Light Company's Turkey Point Plant Unit Nos.
3 and 4 requested the criteria used by the NRC in granting or denying amendment requests such as that of January 23, 1980.. You also indicated that you would appreciate the opportunity to address issues such as the degradation of the steam generators in a meeting with the Staff in Miami.
I To supplement the answer given to you in your telephone discussion with Mr. Grotenhuis, the criteria we use are those given in the Safety Evaluations supporting the actions such as:
Amendment No. 43 to Unit 4 dated December 14, 1979; Amendment No. 52 to Unit 3 dated January 25, 1980 and; Pmendment No. 44 to Unit 4 dated February 22, 1980, which Mr. Goldberg sent to you on March 10, 1980.
Specifically, Amendment No. 44 was issued in response to the January 23, 1980 amendment request.
You will note that the Florida Power and L4giP Company had to submit two additional letters (February 1
and 14, 1980, L-80-33 and L-80-53) in support of the original amendment request in order to satisfy the Staff requirements.
Our Safety Evaluation states that we do not have an adequate basis for predicting steam generator performance for periods longer than six months and that our consideration) of extended operation beyond six months would depend upon operating experi',,'ence at this and other similarly degraded PHR units.
Turkey Point Unit 4 has now operated two years (since February 1978) without experiencing a stleam~,
generator leak.
That and the conservative irispection and plugging program have been included as part of our basis for continued operation.
In addition you will see on page 5 of the license (included in Amendment No. 44) that there are other limitations, i.e., reactor coolant to secondary coolant
- leakage, radioiodine concentration and a metal impact monitoring system.
Limitations such as these are also included in our thinking when the operating,,
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You are also aware that another such amendment request dated Narch 11, 1980 has been received.
This amendment
- request, which has been approved as Amendment No. 49 dated Narch 21, 1980 permitted operation until Nay 1, 1980.
You should have received this and the other amendments cited by nw.
Unit 4 is now down for a steam generator, inspection and
'urbine repair.
The technica'l basis for this latest extension of the operating interval for Unit 4 is much the same as for the last one, that is, continued satisfactory performance following the conservative plugging
- program, which was designed.to last longer than ten mnths.
Special limits are in the license to provide additional assurance
- that, should a
leak occur in a steam generator, it will not lead to an unacceptable radiation release.
As far as the short-term future is concerned we have discussed with FPL, in a meeting on Harch 4, 1980, the basis for steam generator inspection frequency'e have made it clear that we do not expect to have applications for periods longer than six rronths and they will adjust the reload cycles of both Unit 3 and Unit 4 accordingly.
The long range future ys you know, is dependent upon the outcome of the steam generator repair proceeding to which you are a party.
I hope that this letter has been responsive to the concerns expressed in your February 29 letter.
In addition, Hr. Goldberg and Nr-Grotenhuis will be available to discuss these or any other questions you may have regarding the Turkey Point Plant.
Due to the fact that we a'e in the process of reorganization to respond to Three Nile Island recomm~ndations we are unable to give.you a definite estimate of when we can'ave all the answers to your questions in the April 2 'letter.
ate do have a recent report we issued regarding several steam generator tube rupture events, including the Surry Unit No.
2 evel1t, which is enclosed with this letter.
He believe you will find it informative.
In addition, it is illustrative of the kind of attention we pay to these events, even through we don't always publish formal reports on each one.
'incerely, Original signed by:
S h. Varga Steven A. Varga, Chief Operating Reactors Branch dl Division of Licensing
Enclosure:
NUREG-0651, "Evaluation of Steam Generator Tube Rupture Events,"
March 1980 OFFICE P i.
SURNAME
- DATEI, NRC FORM 318 (9.78) NRCM 0240 O'V.S. GOVERNMENT PRINTING OFFICE: 1979 289 389
FF a
FI
DISTRIBUTION Docket Files 50-250 and 50-251 NRC PDRs (2)
Local PDR TERA NSIC NRR Reading ORB1 Reading H. Denton E.
Case H. Berkow W. Russell D.'uller D.
Ross R. M-attson D. Eisenhut T. Novak S.
Varga N. Grotenhuis V. Noonan P.
Check G. Knighton S. Goldberg
<<C. Parrish N. Groff (NRR-3922)
N. Jambor J. Butts M. Stine DL':ORB ttGr tenhujs:
0 idtBO OFIICd~
CUIINAI4d&
DATd~
SEC FORM 518 (976) NRCM 0240 DL:ORB1 AVarga e + /80 OELD SGoldberg I I BO gf U,4, OOVONNMONT PIIINTINO Oddlddl I474 44 ~
444
O.
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ting F