ML19246B991
| ML19246B991 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Palisades, Kewaunee, Oyster Creek, Prairie Island, Ginna, Robinson, Cook, Yankee Rowe, Maine Yankee, Big Rock Point, Fort Calhoun, Crane  |
| Issue date: | 05/31/1979 |
| From: | Kane W Office of Nuclear Reactor Regulation |
| To: | Heltemes C Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 7907190325 | |
| Download: ML19246B991 (4) | |
Text
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yf UNITED STATES y'
g NUCLEAR REGULATORY COMMISSION C
WASHINGTON. D. C. 20555 5^
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MAY 311979 MEMORANDUM FOR:
C. J. Heltemes, Jr., Chief, Standardization Branch, DPM FROM:
W. F. Kane, Project Manager, Standardization Branch, DPM
SUBJECT:
SUMMARY
OF MEETING WITH EXXON TO DISCUSS THEIR ROLE IN TMI-2 RELATED REEVALUATIONS OF OPER\\ TING PLANTS On May 21,1979, representatives of Exxon met with members of the NRC staff. The primary purpose of this meeting was to discuss tne role that Exxon would play in the staff's current program for evaluating all operatir.g plants relative to the accident at Three Mile Island - Unit 2 (TMI-2).
A list of attendees is provided as Enclosure A to this summary. The major points discussed at the meeting are summarized below.
1.
Exxon's Role D. Ross summarized the staff's need to initiate a dialogue with Exxon on the staff's evaluation of operating plants, in light of the TMI-2 accident.
He noted that Exxon is a fuel supplier and that Exxon fuel is currently in a number of operatir,g reactors. He also pointed out that Exxon (as opposed to the NSSS vendor) was doing the safety analyses for some of those utilities.
The staff does not know what roles chese three parties will play in the reevaluation program for operating plants having Exxon fuel. He noted that it is important to define these roles, in liglt of our review procedure. Thus far, we have asked PWR utilities to reevaluate transients and small breaks, prepare revised procedural guidance, a,d train operating personnel in the use of this new guidance.
In the case ot +he B&W plants, this involved simulator training on the. B&W simulator. The Exxon representatives pointed out that they have (or soon will have) fuel in those plants listed in Enclosure B to this summary. To date, these utilities have not requested Exxon's arsistance in responding to any of the staff's inquiries relative to TMI-2. They also said that Exxon does not do the safety analyses for all of those plants, noting that Maine Yankee, and Yankee Rowe plants were two exceptions. Further, they pointed out that Exxon has no simulator capability.
The staff and Exxon agreed that it was important to get the respective roles of the NSSS vendor and the fuel suppliar clarified for purposes of this reevaluation program.
D. Ross noted that we planned to send letters t. each of the owners of operating plants to request that clarification.
ha also pointed out that meetiags will be held next week with the owners
' \\ S-345 79071903p f
MAY 311979 Exxon Meeting Summary of Westinghouse plants and the following week with owners of Combustion Engineering plants and that this mitter would be on the agenda.
2.
Discussion of Staff Information Needs A. Thadani ar.d P. Norian discussed the type of analysis that the staff is requesting of utilities relative to the TMI-2 accidtnt. The staff's inquiries are directed toward assuring that utilities t.nderstand transients and small breaks in the reactor coolant system and that they (or their agents) have the capability to do these analyses.
Realistic, s well as conservative, analyses are needed along with a determi.iation of how critical tha delivery of auxiliary feedwater is to the various events.
The prin-cir al output of these a.nlyses will be an assessment of the adequacy of Qrrent procedural guidance to operators and the development of new or modified procedures, as appropriate.
3.
Review of Michelson's Work B. Sheron discussed the staff's use of ACRS consultant C. Michelson's studies of small breaks in pressurized water reactors. The Exxon repre-sentatives were given a copy of Michelson's report on B&W plantc wnich was dated January 1978.
In addition, he noted that the staff is currently reviewing a draft report prepared by Michelson on C-E plants.
4.
Future Activities ine staff and Exxon agreed to establish an interface to deal with TMI-2 related matters. Over the short term, the staff will inform Exxon of meetings and correspondence related to their potential activities in the evaluation program for operating plants. The staff contact is W. Kane and the Exxon contact is G. Owsley. lne Exxon representatives said that they would talk to their utility customers and a:lempt to define their role in the evaluation program. The staff noted that the response to the letters to utilities, the first of which should go out this week, should define the respective roles of the NSSS vendor, fuel supplier, and any other involved parties in the overall evaluation program.
It was agreed that future meetings between Exxon und the staff would not be held until Exxon's role is defined by the utilities.
fy v
W. p.
ane, Project Manager Standardization Branch Division of Project Management Enclosures A.
L.st of Attendees B.
Exxon Utility Customers Distribution:
See attached sheet 3 /[3 3 ] Cj
ENCLOSURE A LIST 4C ATTENDEES - MEETING WITH EXXON, MAY 21,1979 EXXON NRC STAFF W. Nechodom D. Ross G. Owsley T. Novak H. Williamson W. Kane P. Norian B. Sheron A. Thadani 343 320
ENCLOSURE B EXXON UTILITY CU3TOMERS Plcnt Name Utility NSSS Vendor Ginna Rochester Gas & Electric Westinghouse Robinson Carolina Power & Light Westinghouse Cook Indiana Michigan Elec+ric Westinghouse Prairie Island Northern States Pcwer Westinghouse Kewaunee Wisconsin Public Service Westinghouse Yankee Rowe Yankee Atomic Westinghouse Palisades Consumers Power Combustion Fngineering N?ine Yankee Maine Yankee Atomic Combu tion Engineering Fort Calhoun Omaha Public Power District Combustion Engineering Oyster Creek Jersey Central Power & Light General Electric Dresden 1 Commonwealth Edison General Electric Big Rock Point Consumers Power General Electric 343 321