ML20212M309
Text
'.T
)~
}
ttr a,
a
' Distribution: r Docket Files JUN 6 1978 LWR 1 File
/
Docket
]
i NOTE T0: Distribution List FROM:
Dennis Allison
SUBJECT:
DIABLO CANYON ACRS SUBCON4ITTEE MEETING The Diablo Canyon Subcomittee Meeting will be held on June 14 and 15,1978 in Washington to discuss the seismic reevaluation.
A copy of the agenda that I have suggested to the Subcomittee is provided in Enclosure 1.
In order to support the suggested agenda, we anticipate the people listed below attending.
If you are on the list and cannot make it, please let me know.
g Attend Both Days (June 14 and 15,1978)
D. Allison Various presentations and backup J. Stolz D. Yassallo R. Lipinski P. T. Kuo D. Jeng I. Sibweil E. Sullivan P. Y. Chen R. Bosnak J. Knight IJ. J. Hall (Consultant l
Attend First Day Only (June 14)
N. M. Newmark (consultant) - Presentation on Tau effect and backup for various subjects Paul Smith (LLL)
- Presentation on seismic research program i
J. C. Stepp
- Presentation on probability studies i
J. Murphy
- Presentation on probability studies i
J.Devine(USGS)
- Answer questions about USGS report (if l
necesnry) t j
i M E2 g 6 86000t
~
l arr'e=
- HOUGHS6-391 4 0143 ov..un,
PDP l
[
[
b kg ; 3
~
ma tu b I N W W N) NRCM 0240 W u. s. covewurwe emmrine orrie r, iete - eas-aza
)
ENCLOSURE 1 SUGGESTED AGENDA - STAFF PRESENTATIONS First Day - June 14, 1978 I.
Introduction (D. Allison )
20 minutes Status of Review Overview of nonseismic issues since August 1977 Applicant introduction II. Overview of Seismic Reevaluation (D. Allison)
I hour Nature of staff review Hosgri fault USGS report Newmark report Response spectra Cold shutdown review Structural analysis Mechanical analysis ECCS/ fuel analysis (now resolved)
- d*M9#
Equipment qualification Seismic scram OBE Tsunamis Slope stabiltiy Probability studies Seismic research program Applicant overview III.
Tau Effect (N. M. Newmark) 20 minutes Applicant presentation IV.
Damping (P. T. Kuo and P. Y. Chen) 35 minutes Basis for 7% concrete value Effects of a 5% concrete value Data related to piping values Applicant presentation V.
Probability Studies (J. C. Stepp and J. Murphy) 35 minutes Earthquake probability Plant response probability Applicant presentation Seismic Research Program (Paul Smith - LLL) 35 minutes Results to date on quantifying margins Applicant not involved.
For* % -Tl fr -i l:t
)
) Second Day - June 15, 1978 I.
Cold Shutdown Review (S. Israel or G. Kelly) 25 minutes Criteria Significance, difference from previous requirements Open items and their significance Qualification of raw water reservoir Other open items Applicant presentation How the shutdown is done What was added that was not originally Category I II.
Structural Review (P. T. Kuo)
I hour, 15 minutes Structure by structure Brief description of structure and how it was modeled Brief description of questions or problems that arose and how they were resolved Open items and their significance caygeW6 Critical members, nature of stress, margin Applicant presentation III.
Mechanical Review (P. Y. Chen, E. Sullivan, possibly J. Burns)
By class of systems (Reactor coolant, 20 minutes cold shutdown, other) 20 minutes Brief description of system 10 minutes Nature of analysis Nature of our review Open items and their significance Critical points, nature of stress, margins Equipment qualification 20 minutes Include nature of testing, margins, results to date In situ testirJ 15 minutes Piping snubber study 15 minutes Reactor coolant loops (completed)
Other systems Results and how they were obtained Open items and their significance Policy Applicant presentation
o
)
')
IV. Core Coolability (S. B. Kim and W. Hodges) 20 minutes Spacer grid deformation ECCS calculations Applicant presentation V.
Report on Recent State of California geology 10 minutes investigations in vicinity of site-Applicant presentation VI. Seismic Scram (Applicant) 10 minutes
s
)
3 No detailed presentation recommended for the following seismic areas:
OBE Tsunamis Slope stability No detailed presentations recommended for any nonseismic issues.
Principal nonseismic activity that could be of interest since August 1977 has been:
Turbine missile review discussed in SER (3.5) some seismic overtones Circ. water flooding discussed in SER (10.4) some seismic overtones Fire protection still under review there is one question raised - how to shut down with an earthquake and a fire W8h44EU Tornado missiles has been signed off on probability basis (3.5) pretty much as we discussed in August 1977 Subcompartment discussed in SER_(6.2.3)
~
used in seismic reevaluation of reactor pressure calculations coolant system e
)
i DISTRIBUTION LIST:
_ N. Newmark, U. of Ill.
S. Kim W. Hall, U. of Ill.
G. Lainas J. Devine, USGS W. Milstead H. Colter, USGS G. Hulman W. Gammill E. Hawkins R. Denise N. Fliegel J. Stepp L. Heller R. Hofmann J. Greeves R. McMullen I. Wall L. Reiter J. Murphy J. Knight W. Vessely R. Bosnak F. Pittman I. Sibweil S. Levine E. Sullivan R. Goddard P. Chen L. Davis J. Burns J. Tourtellotte D. Jeng P. Smith (LLL)
R. Lipinsk G. Bagchi P. Kuo D. Bunch R. Tedesco G. Chipman V. Benaroya L. Soffer yg,,,,
D. Fischer L. Bell P. Hearn K. Kampe D. Ross T. Novak S. Israel G. Kelly R. Vollmer F. Hebdon R. Clark F. Fagano F. Rosa J. Knox J. Stolz D. Vassallo R. DeYoung R. Boyd J. Crews, Reg. V G. Spencer, Reg. V Z. Rosztoczy P. Norian E. Throm W. Hodges P. Check R. Myer For#%-39/
A-n a