ML20062D211

Intervenor Suco'S Suppl Response to Applicant Lil'S Second Set of Interrogs Re Inclusion of Credible Large Accidents, Containment Sys Design Verification & Transient Condition Design Verification.Cert of Svc Encl

ML20062D211
Person / Time
Site:	Shoreham File:Long Island Lighting Company icon.png
Issue date:	10/26/1978
From:	Like I SUFFOLK COUNTY, NY
To:
References
NUDOCS 7811210110
Download: ML20062D211 (5)

Text

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NRC PUBLIC DOCUMENT ROOM \em 1L h, ,[ Q o,, I ) L ran:D CORRGPCNDDQ

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I UNITED STATES OF AMERICA Ilf $7 5~ '

NUCLEAR REGULATORY COMMISSION 2 '2.~

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BEFORE THE ATOMIC SAFETY AND LICENSING BOA..

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LONG ISLAND LIGHTING COMPANY ) Docket No. 50-322

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~s SUFFOLK COUNTY SUPPLEMENTAL RESPONSE (J TO APPLICANTS SECOND INTERROGATORIES By orders dated March 2, 1978 and April 4, 1978, the Hearing Board granted partial relief to Applicant in consecbion with its motion to compel further County response to certain .;

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interrogatories. The responses which follow correspohd to  ;

questions of the same letter and numeric used in the Applicant's December 8, 1977 interrogatories.

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4 E. Contention 6(a) - Inclusion of All Credible Large Accidents t 1. The accident mechanisms referred to in this contention' are the so-called Class 9 accidents which, by definition, include I any accident of greater severity than a design basis accident.

t (DBA). Such accidents would include but are not liniced to:

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a) vessel rupture; b) core. melt; c ) anticipated transients without scram (ATWS); and d) reactivity addition accidents.

,t 2.(b & c). The transients referred to in the County's previous responses (ie., rod ejection, ganged rod withdrawal ^,

! rod drop accident) may result in gross vessel movement because

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] the hydrodynamic effect of such transients is to cause a rapid I

and prompt criticality introducing a large amount of energy .

j into the reactor. core. The effect may be likened to a small

() explosion which could cause the vessel to jump, thus causing failures of components inside the vessel and ruptures of emer-gency core cooling system (ECCS) piping connections.

J. Contention 9(b) - Containment System Design Verification

2. Applicant has not demonstrated that the concerns

( 'j identified by the County in its previous response to this f interrogatory have been satisfied because the design verification program for the Mark II containment is incomplete. For example, I

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the Caorso tests in Italy on Mark II containment have not been I

completed. Moreover, completion of the NRC's Safety Evaluation Report (SER) on Mark II dynamic containment loads is at least I

a year off and possibly more. See NUREG 0410; see also,.'TUREG i 0474 and Mark II containment testing programs identified therein.

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I i L. Contention 10(b) - Transient Condition Design ,

l Verification '

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1. 10 CFR, Part 50, Appendix B requires verification of i

! the plant design and indicates that testing is one way such I

j design verification can be accomplished. See, Criteria III, j XI. However, it is the County's position that testing is the

} only acceptable method to assure the integrity of the Shoreham design because of the complexity of the a.ccident sequences and

(]) the resultant inability to properly'model said accident sequences.

Under these circumstances, and notwithstanding the conditional language of 10 CFR, Part 50, Appendix B, the responsibility of the NRC to ensure that the Shoreham plant will operate without endangering public health and safety (see 10 CFR, Section 50.57 (a)(iii); 42 U.S.C. 32133(d)) requires that verification of the Shoreham design be accomplished through testing.

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(/ Respectfully submitted, l VbVf RM[

j Irving Like 4 Special Counsel for the l County of.Suffolk .

Dated

October 26, 1978 f

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l TNITED STATES'0F AMENICA .. / g W{ ,.

j NUCLFAR REGULATORY CC'IMI2SION  %

a NOV l1978>g7, BEFORE THE ATOMIC SAFETY AND LICENSING BO. . .

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i In the Matter of -

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Ll LONG ISLAND LIGHTING COMPANY ) Decicet No. 50-322

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(Shore ~2am Nuclear Power Station,,

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Unit 1)

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CERTIFICATE OF SERVIC_E- -

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O I hereby-certify.that copies of SUFFOLK COUNTY SUPPLEMENTAL RESPONSE TO APPLICANTS SECOND INTERROGATORIES were sent on October 27, 1978, by first-class, postage pre-j paid mail, to the1following:

Elizabeth S. Bowers, Esq.,

Chairman . Richard Hoefling, Esq.

Atomic Safety & Licensing Board Atomic Safety & Licensing Boarl U.S. Nuclear Regulatory Comm. U.S. Nuclear Regulatory Comm.

Washington, D.C. 20555 Washington, D.C. 20555 Dr. Oscar Paris, Member Edward M. Barrett, Esq.

3 Atomic Safety & Licensing Board General Counsel i U.S. Nuclear Regulatory Comm. Long Island Lighting Conpany j Waahington, D.C. 20555 250 Old Country Road 1

( ~- Mineola, New York 11501 i Frederick J. Shon, Member i

Atomic Safety & Licensing Board Edward J. Walsh, Esq.

! U.S. Nuclear Regulatory Comm. Long Island Lighting Company i Washington, D.C. 20555 250 Old Country Road Docketing and Service Section Office of the Secretary V. Taylor Reveley, III, Esq.

j U.S. Nuclear Regulatory Ccem. Hunton & Williams Washington, D.C. 20555 P.O. Box 1535 l Richmond, Virginia 23212 l Atomic Safety & Licensing i

Appeals Board U.S. Nuclear Regulatory Comm.

'. Washington, D.C. 20555 t

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Jeffrey C. Cohen, Esq. . 9, T. J. Burke i N.Y. State Energy Office Project Manager I

Swan Street Bldg. - Core 1 Shoreham Nuclear Power Statio:

Empire State Plaza P.O. Box 618 Albany, New York 12223 North Country Road Wading River, New York. 11742 Howard L. Blau, Esq.

Blau & Cohn, P.C. MHB Technical Associates 380 North Broadway 366 California Ave. - Suite 6 Jericho, New York 11753 Palo Alto, California 94306

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