ML19326D655

Response in Opposition to Applicant 800520 Motion to Terminate Stay of ASLB 790418 Initial Decision.Suppl 3 to SER Indicates That NRC Review,Re TMI-related Requirements,Is Not Complete.Intervenor 800609 Ltr to Util Encl

ML19326D655
Person / Time
Site:	Mcguire, McGuire
Issue date:	06/09/1980
From:	Jeffrey Riley CAROLINA ENVIRONMENTAL STUDY GROUP
To:	Atomic Safety and Licensing Board Panel
Shared Package
ML19326D656	List: ML19326D655 ML19326D660
References
NUDOCS 8007030036
Download: ML19326D655 (6)

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,/ UNITED STATES OF AMEhICA USNRC '

/ NUCLEAR REGULATORY COMMISSION t

5 JUN 131980 > '3

'C-BEFORE THE ATOMIC SAFETY AND LICENSING BOARD do; Omce of the Secretary Docketig & Service In the Matter of *

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8"d E

) 4 g DUKE POWER COMPANY. ) Docket Nos. 50-3

) 50-370 McGuire Nuclear Station Units 1 and 2 )

CESG'S OPPOSITION TO MOTION TO TERMIFATE STAY OF INITIAL DECISION On May 20, 1980, Applicant Duke Power Company filed a motion to terminate the stay of the Initial Decision. Applicant states the ::tay was placed by the Atomic Safety and Licensing Board "until further order by the Boai'd following the issuance of a Supplement

'to the NRC Staff's Safety Evaluation Report addressing the signific-ance of any unresolved generic safety issues," Init a; Decision, 1

April 10,1979. Applicant contends that the issuance on May 23, 1900, l of " Supplement No. 3 to the Safety Evaluation Report" adequately and properly addresses generic safety issues in compliance with the Board's directive and that the Board should terminate the stay.

The advent of the accident at Three Mile Island-2 ofter the .

l closing of the McGuire operatin6 licensing record makes it apparent l l

that there are significant safety and health considerations which were not addressed in the Initial Decision. The Staff has under review a number of considerations for applicants includin,g.upg adinE.

3. m,.m;c00 emergency evacuation plans, operator training, P.MO.^,t?g,3'.$'g,..[.

ceg.c pom ,cnalme ter-

O istics, and a variety of design features, for exampI;uumo) 5 e the Marc)) W 10, g . .... . : - -s.~

1960 letter to all pending operating license applicants of nuclear,r.e,.4

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steamsupplysystemsdesignedbyWestinghousea3fCombustionE6i2-[.

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eerin6 The subject: " Actions Required From Operating License & 0 '"'

Applicants of Nuclear Steam Supply Systems De' signed-by h'est,Insh5~u7__

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THIS DOCUMENT CONTAINF POOR QUAL.lTY PAGES .y Ogo'O 800703003(o 6 5 oh

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and Combustion Engineering Resulting From the NBC Bulletins and Orders Task Force Review Regarding the Three Mile Island Unit 2

- Accident".

. . ... = . .: . . .

Supplement No. 3 to.the SER indicates that Staff review of McGuire is not yet complete in this respect.

Nonetheless, the specific TMI-related requirements for licensing McGuire Units 1.and 2 will be identified and will be discussed in a supplement to the SER. Many of these are related to the program areas listed above.

Long-term " Unresolved Safety *-Issue" tasks that may be undertaken in the same program areas,could provide a basis for further improvements that may or may not be applicabic to the McGuire plant.

Until this TMI related supplement is docketed, the Board's intent in ordering a stay will not have been met. .

CESG, in' accompanying filings, moves the admission of TMI-2 related contentions and the reopening of the evidentiary hearing.

Clearly with the supplementation of the SER inccnplete and TMI-2 related motions before the Board the time has not arrived for termination of the stay. Intervenor urges the Board to deny Applicant's motion.

Resnectfully submitted, '

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Jesse L. Riley )

President, Carolina Environmental Study Group At Charlotte, N.C.

June 9, 1980 e g

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[5 u 7 ig EM_ r ^^^^ ; dQ1ROUM E NRONMEFAL 9UDY GROUP g

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. am L. Forter, Esq.* .9e Docket Hos. 50-369 Associate General Counsel $0-370 Duke Power Co.

Oear **r. Porter:

In the event that C3.3G's motion to sdnit new contentions in the instant matter is granted, it will be, as discussed previously with you and Mr. McGarry, in Duke's interest to proceed'expedi-tiously. The following discovery requests are being transmitted to you at this time to provide Duke with an early notice as to CESG's interests. Mr. Ketchen may wish to note.

1 Is there any empirical data relating 'clestin'+.ouse pressure suppression containment performance in response to sufficient over pressure to cause f.ailure? If so, provide. If there are empirical model studies or analytica1' studies, provide. The

, variance and confidence limits are of particular interest.

2. Uhat design safety factor was taken for t'v atcel containnent shell in regard to failure from internal pressure? Is the steel shell designed to withstand full vacuun. Frevide uork papers.

3 ilhat design safety factor was used for the external, concrete element of the containment regardinc int..rnnl pressure?

h. Are firm data available in regard to the cir 1coknee rate from the steel shell of McGuire containment.1 under internal pressure?

For contcinment 2? If so, provide data.

F. As in question 3 foressing, what desi.n 3 bosis assumptions were made for leakage from the concreto outer containment?

6 Are firn dota available for the air leckage rate from the outer concrete containment under internal pressure? .Lf so, provide data.

7. What is the designed rate of sir lenko;;c torcuch Lnu concrete contsinnent?

urar.>.c m .i.xa % ,m ;.

U. 517 G 30 P. I.} '

'!ha t in the proposed pressure c:/cle for the i:mcnxonn. . P/.;il]NOC cinnnu durir.c operation? HO!Nt'.WC; im W

,re f,n e Ocone: dry containmncLs n senLinlly .. -

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. . ..".I,% c at Thrce Li.lc Isinnd 1 3. n d f '< .

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10. i;ha t, is the design pressure for tne Oconen-con tain:"cnts? 7 c 5 #

the ..cGuire contninments? --- - I' & 'S *'r3bi-u .. on .. co:n i* , __,,_ . _. _ _ . .

'not is t h r:, internal con tninant pressur.e c.>ycle at Oconee?

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854 HENLEY PLACE CHARLOTTE NORTH CAROLINA 28207 - (704)375 4342

12. How nany reconbiners are thoro in a McGuire containment?

13. What is the air circulation rate through a recombiner?

14. LWhat are the specifics on recombiner design such as operating temperature, catalyst type and amount, flame pr.opagation stop devices, etc.? Provide manufacturer's specifications.

15. Uhat is the gaseous volume of a McGuire containment, i.e.

total containment volume less volumes of primary system, steam ~ generators, ice baskets, etc.? Provide work papers.

16. What convection rates of gaseous containment content have been assumed in a TD1-2 hydrogen release scenario? Provide work papers.

17^. that total amount of hydrogen was enlculated as being released in the TCl-2 accident? How many pounds of zirconium were calculated as reacting to form zirconium oxide? liow many pounds of circonium were in the THI-2 core? Iiow much TM1-2 hydrogen was calculated as being formed by radiolysis of water? Frovide as a function of time. ; ion much hyurogen was attributable to zine reaction with water as a function of time? Was any hydrogen release attributa'cle to organic finishes and sealers? .To the corrosion of aluminum or other metals?

16. Provide uhatever infornation you have as to hydrogen concen-trations in the Tai-2 containment starting with the March 26 accident.

10 dhat concentrations of hydrogen would be present in a McGuire containment for the same hydrogen relcase patternas at TM1-2?

Frovide work papers if this calculation has been made.

20. IIow much zirconium is present in a McGuire coro? How much hydrogen uould be released by the complete hydrolytic reaction of this circonium? Uns the resultant concontration in the IcGuire containmcnt been calculated? If other, related eniculations have been nade, provide the work papers.

21 Provide work papors on any calculations muds in rogsrd to other mechanisms of hydrogen release such as radiolysis.of water, the hydrolysis of sinc, aluminum, and other metals, and the decomp -

osi tion of organics. State the conditions or temperature and moisture exposure' assumed.

22.  ! Ins hydrogen concentration been calculated for such scenarios as the foregoing assuming recodiner opera tion?

hat vertical cascous circulation mcchonist.: was assumed? Frovide work papers.

itute the-bydror;cn rcletse rates. .ns n case cr.scntially similar to the THI-2.eccident among tl e cases s tudicd?  !

T.3 Provide. whatever information Duh nar bave rcardin;; possible or 'gpothesized rechanisms of 2 7 dro: en ir;nition .t ~:I-i.

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• ?c4ut 2 "h. t .cens wt.rc used in joinin,. thu etuc1 picecc in the McGuiro "$p contcinment: welding, rivet'.n;,' otl'or?

E=f Uhat are the nominal thicknesses of the steel-plate corresponding hs

.25 to increments in eleva. tion? What plate thickness is the top?

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26. What is the means of joining the top plate to the wall plate gg in the containmnet? Are gussets or similar elements used? Eh Frovido detail drawing of juncture of top and side.  ;.= =.

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27. :lhat, precicely, does-Duke take to be the lower and che upper But E cxplosive limite (L'E and Ui:L) of qdro cn/ tir mixturcs? totil absolute dacc Duke take F.o be the eff ec t on LCL b) nnd 117.I.inofUn)e rance O to 100,I

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prec:sure in the ran,;e O to 100 peia? 31 over the O to "00 psia pressure r9nge? 10 Duke doec not have this da ta, provide whatever data base it has.

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28. What is Duke's information in regard to ignition conditions for

'.lhat is the combustible hydrogen / air / water vapor systems? h' hat relation of minimum ignition temperature to gas composition? gi in the relation of minimum electrical energy ( spark) to cause ignition Mi to gas composition? 5

29. Provide any correspondence or reports received or generated by-  !!

Duke relating to the rapid combustion of hydrogen prior to s March 20, 1979.

30. 'ihat information has Duke in regard to substances Nhich reduce the ignition requirements for hydrogen / air / water vapor mixtures? -

Identify data sources. =

31

';." hat, to Duke's best knowledge, caused the ignition of the Identify point of ignition  :

hydrogen in the Tni-2 atmosphere?

Include any work papers or correcpondence.

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and source of energy.

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.32. Has Duke calculated the pressure development for hydrogen burning or explosion in a McGuire containment? in an Oconee i containment? If so, provide work papers, includinc scenarios and  !

assumptions considered.

das Duke considred mechanisms of radioactive particic fornation j 33 and rolcoce in an-event initiated b; loss ofIfcore cooling and so, provide result, hydrogen generation by the zirconia reaction?

including work papers.

34. las Duke. developed the radiological consequences for safety, health, and the environment of a postulated McGuire containment If so, provide work

- rupture initiated by a TH1-2 type of accident?

papors and_dctailcd conclusions.

Does Dukeic Eacrgency Plan include.dcaling with a containment 35 rupture? witha hydrogen explosion inside the renctor? Frovide if.available.

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. .. . 36. ~ Provide Duke's Crisis Relocation Plans in response to a major

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' particulate release and/or condensible volatiles release.  :=

5I Yours sincerelyg 7=

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Jes e.[N 7 f. iIE' L. Riley CESG $@

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