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UNITED STATESNUCLEAR REGULATORY COMMISSION

WASHINGTON, D. C. 20555

OCT 18 1978

Docket Nos: 50- 5and

APPLICANT: Pacific Gas 8 Electric Company (PGKE)

FACILITY: Diablo Canyon Nuclear Power Station, Units 1 and 2 (DiabloCanyon)

SUBJECT: SUMMARY OF MEETING HELD ON OCTOBER 5, 1978 TO DISCUSS THEDIABLO CANYON REVIEW SCHEDULE

We met with the applicant on October 5, 1978 in Bethesda, Marylandto discuss the Diablo Canyon review schedule. A list of attendeesis provided in Enclosure No. 1.

The Diablo Canyon review schedule called for completing our review ofseismic design issues and publishing Supplement No. 8 to the SafetyEvaluation Report (SER) by November 15, 1978. This would supportbeginning the safety hearings on schedule on December 4, 1978provided the other hearing preparation items such as filing testimony',identifying and deposing witnesses, and completing discovery were alsocompleted on schedule.

The object of this meeting was to discuss the review status of numerousspecific items that were under review and to identify the items of mostconcern with respect to meeting the schedule. The items we discussedand their status are summarized in Enclosure No. 2.

It was apparent that meeting the schedule would be difficult. The staff'sreview of seismic design items should have been completed and preparationof draft 'SER sections should have been underway in order to have assuranceof meeting the schedule. Instead, however, the review had been 2/3 o3/4 completed. It would be necessary to write the draft SER sections andto resolve the remaining items within about the next 2 weeks in order topublish SER Supplement 8 on schedule.

We indicated tha we would continue attempting to meet theschedule'ncluding

compressing the time available. for writing and reviewing

0 4

"I

-2-OCT l 3 1978

the SER supplement. PG8E indicated that it would attempt toprovide the information needed to resolve the outstanding itemsas soon as possible.

Dennis P. Allison, Project ManagerLight Hater Reactors Branch Ho. lDivision of Project Management

Enclosures:As Stated

CC:See next page

~"

I

6Mr. John C. Morrissey

OCT 1 8 1978

Mr. John C. MorrisseyVice President & General CounselPacific Gas & Electric Company77 Scale StreetSan Francisco, Californian 94106:

CC: Philip A. Crane, Jr., Esq.Pacific Gas & Electric Company77. Beale StreetSan Francisco, California 94106

Janice E. Kerr, Esq.California Public Utilities Coranission350 McAllister StreetSan Francisco, California 94102

Mr. Frederick Eissler, PresidentScenic Shoreline Preservation

Conference, Inc.4623 More Mesa Drive-Santa Barbara, California 93105

Ms. Elizabeth E. Apfelberg1415 CazaderoSan Luis Obispo, California 93401

Ms. Sandra A. Silver$492 Conejo AvenueSan Luis Obispo, California 93401

Mr. Gordon A. Silver1792 Conejo AvenueSan Luis Obispo, California 93401

Paul C. Valentine, Esq.321 Lytton

Avenue'alo

Alto, California 94302

Yale I. Jones, Esq.19th Floor100 Van Ness AvenueSan Francisco, California 94102

Mr. Richard HubbardMHB Technical Associates366 California AvenuePalo Alto, California 94306

Mr. John MarrsManaging EditorSan Luis Obispo CountyTelegram - Tribune1321 Johnson AvenueP. 0. Box 112San Luis Obispo, California 93406

Elizabeth S. Bowers, Esq.,Chairman

Atomic Safety & LicensingBoard

U. S. Nuclear RegulatoryComnission

Washington, D. C. 20555

Mr. Glenn 0. BrightAtomic Safety & Licensing

BoardU.'. Nuclear RegulatoryComnission

Washington, D. C. 20555

Tolbert YoungP. 0. Box 219Avila Beach, California 93424.

Richard S. Salzman, Esq.,Chairman

Atomic Safety & LicensingAppeal Board

U. S. Nuclear RegulatoryCormission

Washingt." ', D. C. 20555

Dr. W. Re=d JohnsonAtomic Safety & Licensing

Appeal BoardU. S. Nuclear Regulatory

ComnissionWashington, D. C. 20555

Alan S. Rosenthal, Esq.Atomic Safety & Licensing

Appeal BoardU. S. Nuclear Regulatory

CoomissionWashington, D. C. . 20555

yI''lH

' I!

Mr. John C. Morrissey

cc: Ms. Raye Fleming1746 Chorro Street

,.San Luis Obispo, California 93401

Brent Rushforth, Esq.Center for Law in the Public Interest10203 Santa Monica BoulevardLos Angeles, California 90067

Arthur C. Gehr, Esq.Snell 8 Wilmer3100 Valley CenterPhoenix, Arizona 85073

Mr. James 0. Schuyler, ProjectEngineer

Pacific Gas 8 Electric Company77 Beale StreetSan Francisco, California 94106

Bruce Norton, Esq.3216 North 3rd StreetSuite 202Phoenix, Arizona 85012

Mr. M. C. GangloffWestinghouse Electric CorporationP.; 0. Box 355Pittsburgh, Pennsylvania 15230

Michael R. Klein, Esq.Milmer, Cutler 8 Pickering1666 K Street, N. M.Washington, D. C. 20006

David F. Fleischaker, Esq.1025 15th Street, N. W.5th FloorWashington, D . C. 20005

Dr. William E. MartinSenior EcologistBattelle Memorial InstituteColumbus, Ohio 43201

OCT 1 8 1978

ENCLOSURE NO. 1

NRC STAFF

D. Allison

J. Stolz

D. Vassallo

F. Rosa

J. Knox

P. T. Kuo

P. Y. Chen

J ~ Tourtellot.e

J. Lawrence

'IST OF ATTENDEES

DIABLO CANYON MEETING OCTOBER 5, 1978

PGE(E

J. Hoch

M. Williamson

H. Gormly

P. Antiochos

M. Furbush

G. Blanc

et al

Mestin house

W. Sugnet

M. Gangloff

et al

ENCLOSURE NO. 2

MARKED-UP DIABLO CANYON REVIEH SCHEDULE

Indicates the status of items under review as a result of the discussionsbetween the applicant and the NRC Staff at a meeting on October 5, 1978

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DIAB1.0 CANYON REVIEW SCHEDULE - STATUS 4+9, rB—

l.

~ UPH

ASBPSB

ITEMS RE/VIREO fOR HEARINGS

ALAB 444 (River Bend) materialAddress Category III regulatory guides

'l'Rt~ JC5C/7/fPf/Cr Jg )0/'OV/P f 6 /Pg4 fTPFire protection

Submittals in letter 8/3/78 ~~Pm'm m

n Q 5 ~vrC'tv'/

~ CPB

~AB

(-3.

:. h .SER i@put — marco~ Io/~J>ff./du'rg/ver ~~udrpj gg(~5. ~gge~eg gy/g o/gpReactor fuel analysis - LOCA + seismic-coo)able eometry

Review completedA few .items documented 8/3/78Revised letter exye~ 8/25/78

s E, ~ -qkrD>8 «R ~np>~ cxyecPcJ /o/go/ggTurbine missiles

Review completedSER input was due 8/4/78

Systems for cold shutdownusuPSB

assIN+8

(1) Instruments in control room - completedSER input was due 8/1/78 by LPH

p

(2) Raw water reservoir - LaterResolve issue ~ with tanks belowDraft reportS': „,', r erie~ e J.

8 sd/ 'M~P~PJ4JT8'3)«ire water ta and transfer storage tank

Submittal on hose connections reviewed (Am 66)Eau ever, ~4E~ ~m Irurther minor information'(8/31/78

eel w"". R C/FBPg~5w, C .roke</rgSeismic qual>fication o electrical equ>pment (electrical review)PSB (1) BOP equipment that will not be retested

Audit completedilocumentation of informal infortaationgSubmittal of details on indicators

and controllers See Aa'1 62

5

I

PSB

zl~r7 s~EJckcs /fJPWSolerrz] Js g i~-zz ~

aFW~~rri'c~z7

ICSB ~ (3)

MEB also

MEB also

PSB alsoMEB also

MEB primari ly

BOP equipment that will be retestedTesting completed 8/1 1 /78

puMifeXZ/4//78'ex&

/pc'ups @'2~ 'a ~~seq ~rovi4~P-

9/z~/rz,CP4 Cp/ra~i O'PWa- +>+-

A, or lcpllg~gg a~~ lo/yp/<<

NSSS equipment (generic program items Eru>~>< /<>/ ~>~+—Audit completed 8/4/78Documen&answers to draft questions +H~ .Iz- 2/78'

1 f f ~IP d'~ «

Describedd seismic quali fication ofBarton transmitters iBHfN 5'/Z~17&

. Provid&infdrmation on environmentalquali ficat ion of Barton transmi tters(necessary to close out seismic) ~~~X/zS/gZ

Also submerged qualification isb~Describ/seismic qualification of Barton 351/396

containment pressure transmitter RWo .Qp/zzDescribe:seismic qualification of containment

fan coolers 10/15/78Limitorque valve actuators will be handled

with 14" valve test described below on page 5SER input

PSB Seismic scram~>~dovetailed information

SEB

~SEB

Containment SITUnder reviewMemo to LPM 9/1/78(Hot an SER item)

Baseline correction information on time histories+curt ~ Corrprfcp eZ

(Was not 1 i sted in Supp. 7)

Containment stabilityHad

C 3Q 70

Scrag'/za~wu- ~~~&8A~~

~ y ~

3

SEB

SEB

SEB

SEB

Containment foundation mat (A-11}@~M~~Containment screening methodsReview completed

Containment penetrationsReview completed

Containment diagonal rebarUnder review

spb/~i~Prs/rz

+DC/>/~l'EB

SEB

SEB

SEB

SEB

SEB

Containment interior equivalent stiffnessQndef~~Submited further information 8/18/78 ~>4 S.p>+~~<>]yzure~ ~~/i~deP

Contai-nment interior - decouplingI

Proved gomo@ison of response spectra 8/25/78P~. / ~ Er/y/ - / ~/sa/r4il . $r- =/78 PZ" -f T8 res/F8

. ~V/Cm rorp~/g~~ontainment int.error - shear 5 bending distribution

NdProvide further ioformationPCVC'ee C ~mgiC

Wed'ontainmentinterior - annulus areaReview completed

Auxiliary BuildingTorsion on roofShear keysSoil bearing pressureReview completed

Intake structure dynamic earth pressure (A-1)Submi~urther information 8/1/78Review completed

Intake structure piersI

Submi~v- u~gher information 8/25/78prowl~<~/~scrpJrc ~ ~P FurJrrr~ +<+>+8 ~ + ~ ~X

78'ntakestructure foundation mat (A-4)Submittiiurther information 8/25/78

6

SEB

SEB

SEB

SEB

Intake structure stability analysis (A-5)Submi&urther information 8/25/78~~Under review

o~qQ~ ~c~PPe~srn~rwy -"p'c ~ 7'ru ra

rproW~~ u~l~~PHureaSM.~sr~her—44et-.ma

'Wasnot listed in SER)

Turbine building computer codesA%%err/rriN> '&rpifmr'r'rc4rr»r/rrrrr p/ggrrgp

Turbine building torsion studies

SEB Turbine bui 1 ding end bentsUnder review

A/verray -/a zPsr

SEB Turbine building modifications descriptionUnder review

ehacW W reSEB Turbine pedestal gap modification

Submited analysis and design modifications 8/18/78~eur~~eH

»ra arr'rrrr r'nna r/ ara." 'irrrap/7Z'EB

Turbine building items previously submittedUnder review

(1) Crane trolley vertical restraints(2) Turbine crane(3) Foundation mat -Q~~~ ~~.~

af//at

('g3+) Building mathematical models - ~~~(g) P) Examples of smoothed spectra —m~cw r c~yd..~l<c) ~ Crane mathematical model

SEB Turbine building quantitative assessment of welded 8 boltedJoints

+/</~f Submit information 8/28/78(not listed in SER)

SEB Outdoor tanksQ r rrr -: rrr&gMcricrWRriu~ ~+~rFua w9~u ~ ~ru~~Q ~~<+>

SEB CranesASB «7 /15I78 I ~ ~ .j

4 <re ezp~c7t PSfrvccFi r<P ori~Pp~m~ »»~rY~dlp &» o ~err ru~ia/zgPro»rate ~~A>p ~«+sos

3

y MEB

MEB

MEB

v MEB

Damping of Reactor Coolant SystemReview completed

Sensitivity. of non-1 jnear systemsReview completed

Unit 1 vs Unit 2 reactor coolant systemReview completed

Supporting of Class 2 pipingAudit completed 8/4/78, found acceptable

MEB Piping snubber studyReview completed, found acceptable

MEB Results of requalifioation by testing equipment (vn<+oaI< I rovr~)Many items available for audit 8/9/78Remgj~~ vailable 8 1 Retest results of

4.16 KV Switc ear <~ ~~ reurcccr.1

MEB

]pgpal/7~PESEppgR

MEB

MEB

Retest of 14" valve, Limitorque and limit switchesPSB audit completed, found acceptable subject to

documentation of test reports ~rrA~+> ~~~~+~MEB has under reviewgubamt ilpanl test data results & evaluation a -«m~vu a'yv'+ 5/yX/vaf

~>/~eraAdditional in situ tests reports

Final reports in for audit 8/4/78CCWHX an@lysis in for audit 8/4/78P rovide~computer code veri ficat ion 9/M78Provide information addressing modes 9/~78Test inputs for 14" valve

q

P~~nak-d r~+a$ e~ma'orrect-ex+s+.mg-do 'a

A.imit in 9-ace e~a~W/INC age

Limitorque qualification reportsItem dropped, covered by 14" valve above

-6-

MEB

MEB

MEB

MEB

MEB

i4lEB

MEB

Natural frequency of MCV 637nder review 6/]5/78 ~@ ~ r ur'r der rrrb'err.

9/repsqualification of several valvesSeveral under review 6/29/78 (6/30)Ql ''E " i f

~ -porous c yr'ra g ygpivu/ v Fo~'rJer yyoc'r'rro~s y o c'H~

Ability of active valves to operateIn situ test reports for valve operability. under review 8/4/78 / ~ ~~~yr <pe carr~~ ~g/i/~reCeeer~~ /eW Cemg4e +4Further justification, qualification of

solid state protection system cabinetsReview completed "

Update tables 7-5 through 7-8 and 10-17-5A Under reviewDraft of others under review 8/4/78Submit in Amendments 64 & 66Fcc~I Per ><4'~waif APpc 4/<4 ~ 8 AY.poNozzle loadings on aux feed pumpAudit completed 8/4/78Review completed

Piping sensitivity studiesReview completed

qualification of Rotork actuatorsItem dropped, not Class IE

MEB ~t Stress calculations on instrument

,./v a /f'..re)'.J'~p~~ p.rag e ln'sfrznren7 siogouvJe / e'er rerrorts sjfeerrva g/gg/y'gv ro>,4'eforyeP tery" r er orr-':~~,eyrieJ raspy~)es e e le)3p<8'

0

-7-

2. ITEHS NOT REQUIRED FOR HEARINGS

PSB

PSBPSB

ASB

PSB

ICSB

A57/A~>~~ <~~~~Iyrfi~/re~

Environmental qualification of electrical equipment

(1) Normal environment nearly completedMonitoring .for NSSS equipment

~W/»(2) Severe- environment BOP equipment

Justify (~~ containment penetrations ~i/PSJustify or retest Boston cable 9/15/78 ~~s x/~cf'Mustify deleting two auxiliary feedwater valves

from list '- i CAN> c++/+~~+SER input

(3) Severe environment NSSS equipment(generic progr'am items)

DescribPenvironmental qualification of replacementsfor Fischer 5 Porter transmitters '.. 5//'pg/r8r/ v/a

Provide Hodel numbers on ASCO congainment isolationsoIenpid val ves kyat+~ 9/22''P~

Revis&references on Fischer 8 Porter feedwaterflow anil steam pressure transmitters pva8'rfr8- 8/ z/vg".

Document<qual ification of RC flow instrumentsfor required environment (which is notsevere) ~~4 P/zMPB

Describ/qualification of containment pressurebellows and transmitter ~~) 5/~ ~/g8

SER input

(4) Later, steam line break analysis is expectedto require reevaluation/requalification of afew specific items

(5) Miscellaneous generic questionsConnectors, review completedPolyethylene, review completedPenetrations - dielectric strength, provide further~

information on details of penetration design 8/Ã /78Penetrations - fault current, draft information under

reVieW 8/4/78v ZrC PF/raeSiliCVV 7>Pma:4 ia/gm/Pap

P ~qL

fyeuiJe +cl~rled f<+'</ o> sty/iS /~ yesfs )ggjj)jgCo ~ywarr er e~Zy rpyeS y~g~~/~

r~s ~ep

C

-8-

PSB

CSB

MTEB

Degraded grid voltageSab~ Further information meeting -staff

position

Containment purge systemS'b «'1:~ ! F/SER input IbsggvsggIf not justified, can use tech. specs..

Reactor vessel toughness

prmvrO va+i~i+Zt>

question to applicant 7/25/786 esp~~so: q/~9jgg

MTEB Inservice inspection plansfrEdgvaiuation to Lpflsf+IS zvemfv4'fjord v c~~

RSB Overpressure protection final fixSubmittal expected 8/15/78SER inputHave accept d 1nter~g fix for Unit 1, first cycleRSB ~ us ~aM~i ~~ox ~ ~~r~~ derv d;

y'SB

Main steam line break analysisAb Submittal expected +Bfgvri%- ////~+sfPSB SER input Blfgvf&

ECCS metaj water reactionsComplete<generic review ~~Submit r evised analysis ~~/4//~/<8SER input

TASKFORCE

FINANCIAL

Regulatory Guide 1.97, Revision 1

Review applicant submittalIiot an issue to hold up licenssng. To be completed

on generic basis

MeteorologyReview completedSER input completed

Financial updateUnder reviewSubmitPhdditional information 8/21/78

E

IS)lesel'estvwg Tacknife( a/lecipfirxr ron

F'rmsffde crow ~<vf vmofi>vf aP ~sfvi v C o/ia%

r p

-9-

PASGSB

CSB

Probability Studies,GSB input completed

Publish evaluation

Containment access hatch leak testing tech spec~k

sd'R g<yul cow/@Per

pz», jp resnlls oF w'overage. e~erpp~a lPdoarrg

4

6HEE TING SU/NARY DISTRIBUTION

LNR I

Docket File

Local PDR

TICNRR ReadingLWR l FileE. G. CaseR. S. BoydR. C. DeYoungD. 8. VassalloD. SkovholtW. GammillJ. StolzR. Baer0. ParrS. VargaC. HeltemesL. CrockerD. CrutchfieldF. WilliamsR. J. HattsonD. HullerProject HanagerAttorney, ELDE. HyltonIE (9)ACRS (16)L. DreherL. RubensteinR. DeniseNRC ParticipantsC. HeltemesNRC Attendees

IC

~ ~

~ ~

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