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o UNITED STATES g
3 yg cdf p NUCLEAR REGULATORY COMMISSION r,,,g.bg j, WASHINGTON, D. C. 20555 December 28, 1981
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MEMORANDUM FOR: Harold R. Denton, Director Office of Nuclear Reactor Regulation FROM:
Richard H. Vollmer, Director Division of Engineering
SUBJECT:
DIABLO CANYON REVERIFICATION PROGRAM At your request, we formed a ilehiew Group to perform an in-depth rehlew cf the document action to.date concerning the Diablo Canyon design reverification program. Our review has focussed on the technical adequacy and scope of the proposed design reverification, the. competence of those selected by PG&E to.
perform the design-reverification, and the independence of the parties involved.
The Review Group, with rayself as Chairman, is composed of:
G. Bagchi, Section Leader, EQB R. Bosnak, Chief, NEB W. Haass, Chief, QAB F. Schauer, Chief, SEB S.Skjei, Chief,AEAB E. Sullivan, Technical Assistant, DE.
We had planned on prohiding you.with' a summary report of our rehiew on Dccember 30.
However, our plans to discuss many open items with PG&E and consultants on Decem-ber 28 or 29 were interrupted by the peer team work taking place during the same time period. We, therefore, plan on meeting with PG&E and consultants early in the week of January 4 and providing you with'our report one day later.
Our prelimin~ary findings, discussed in more detail in the enclosuras, are as follows:
Both Cloud and Teledyne fail NRR's proposed indepe:tdence criter.f a.
Thereisinsufficienttechnicalcapabilityincihil-structural analysis shown for either Cloud or Teledyne.
Reedy'sr independence and technical qualifications appear acceptable. However, his reporting relationship through Cloud to PGLE is not.
Theprogramplanfor.reherification.isnotadequatelydeheloped to give assurance that.its successful completion will demonstrate an acceptable facility.
8609170355 860908 lp PDH FOIA HOLMES06-151 PDR
'4. Denton it The sampling plan. selection criteria, and resolation of deficiencies are not acceptable.
l It is not clear.how technical judgements will be made or " benchmarked" against acceptable criteria.
These items will form the agenda for a meeting.with.PGLE and ccnsultants. By separate memorandum to DOL, I will forward an agenda and request a meeting on January 4 or 5, 1982.
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Richard H. Vollmer. Director Division ci. Engineering
Enclosure:
As stated cc:
E. Case D. Eisenhut R. Mattson R. Tedesco J. Knight W..Johnston Review Group r
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