ML17258A775

Forwards Structural Engineering Branch Request for Addl Info Re SEP Topics III-4.A Re Tornado missiles,III-4.C Re Internally Generated Missiles & III-7.C Re Delamination of Prestressed Concrete Containment Structures

ML17258A775
Person / Time
Site:	Ginna
Issue date:	02/09/1981
From:	Crutchfield D Office of Nuclear Reactor Regulation
To:	Maier J ROCHESTER GAS & ELECTRIC CORP.
References
TASK-03-04.A, TASK-03-04.C, TASK-03-07.C, TASK-3-4.A, TASK-RR LSO5-81-02-007, LSO5-81-2-7, NUDOCS 8102120242
Download: ML17258A775 (8)

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February 09, 1981 Docket No. 50-244 LS05-81-02-007 Hr. John E. Maier Vice President Electric and Steam Production Rochester Gas 5 Electric Corporation 89 East Avenue Rochester, New York 14649 I

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SUBJECT:

GINNA - SEP TOPICS III-4.A. III-4.C, III-7.C Me are continuing our review of SEP Topics III-4.A, Tornado Missiles; III-4.C, Internally Generated Missiles; and III-7.C, Delamination of Prestressed Concrete Containment Structures.

The intent of the attached requests is to obtain existing information and analyses.

It may be possible to alleviate some of the concerns with a minimum of additional effort.

In such cases, we would like to have this information; however, these requests do not require you to perform additional analyses.

You are requested to submit the additional information described in the enclosure within 30 days of your receipt of this letter.

Sincerely.

Enclosure:

As stated Dennis M. Crutchfield, Chief Operating Reactors Branch ¹5 Division of Licensing cc w/enclosure:

See next page 8>02 120 Q+.

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+n gO Docket No. 50-244 LS05-81-02-007 UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 February 09, 1981 Mr. John E. Maier Yice President Electric and Steam Production Rochester Gas

& Electric Corporation 89 East Avenue Rochester, New York 14649

SUBJECT:

GINNA - SEP TOPICS III-4.A, III-4.C, III-7.C Me are continuing our review of SEP Topics III-4.A, Tornado Missiles; III-4.C, Internally Generated Missiles; and III-7.C, Delamination of Prestressed Concrete Containment Structures.

The intent of the attached requests is to obtain existing information and analyses.

It may be possible to alleviate some of the concerns with a minimum of additional effort.

In such cases, we would like to have this information; however, these requests do not require you to perform additional analyses.

You are requested to submit the additional information described in the enclosure within 30 days of your receipt of this letter.

Sincerely,

Enclosure:

As stated Operating Reactors B anch O'5 Division of Licensing cc w/enclosure; See next page

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"j Mr. John E. Maier R.

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GINNA NUCLEAR POWER PLANT DOCKET NO. 50-244 CC Harry H. Voigt, Esquire

LeBoeuf, Lamb, Leiby and MacRae 1333 New Hampshire Avenue, N.

W.

Suite 1100 Washington, D. C.

20036 Mr. Michael Slade 12 Trailwood Circle Rochester, New York 14618 Rochester Committee for Scientific I nforma t i on Robert E. Lee, Ph.D.

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Box 5236 River Campus Station Rochester, New York 14627 J effrey Cohen New York State Energy Office Swan Street Building Core 1, Second Floor Enpire State Plaza

Albany, New York 12223 Director, Technical Development Programs State of New York Energy Office Agency Building 2 Enquire State Plaza

Albany, New York 12223 Rochester Public Library 115 South Avenue Rochester, New York 14604 Supervisor of the Town of,0ntari o 107 Ridge Road'West

Ontario, New York 14519 Resident Inspector R. E. Ginna Plant

.c/o U. S.

NRC 1503 Lake Road

Ontario, New York 14519 Richard E. Schaffstall, Executive Director for SEP Owners Group 1747 Pennsylvania

Avenue, NW Washington, D.C.

20006 Director, Technical Assessment Division Office of Radiation Programs (AW-459)

U. S. Environmental Protection Agency Crystal Mall f2 Arlington, Virginia 20460 U. S. Environmental Protection Agency Region II Office ATTN:

E IS COORDINATOR 26 Federal Plaza New York, New York 10007 Herbert Grossman, Esq.,

Chairman Atomic Safety and Licensing Board U. S. Nuclear Regulatory Commission Washington, D. C.

20555 Dr. Richard F-Cole Atomic Safety and Licensing Board U. S. Nuclear Regulatory Comission Washington, D. C.

20555 Dr.

Emmeth A. Luebke Atomic Safety and Licensing Board U. S. Nuclear Regulatory Comission Washington, D. C.

20555'r.

Thomas B. Cochran Natural Resources Defense Council, Inc.

1725 I Street, N.

W.

Suite 600 Washington,.0.

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20006 C

Ezra I. Bialik Assistant Attorney General Environmental Protection Bureau New York State Department of Law 2 World Trade Center New York, New York 10047

ENCLOSURE G INNA STATION REQUEST FOR ADDITIONAL INFORMATION STRUCTURAL ENGINEERING BRANCH Additional information is needed for the following structural topics:

III-4A Tornado Missiles For each Category I structure except the containment (addressed in FSAR Section 5.1.2.8),

provide the missile set that was used in the design and description of the methods of analysis in determining the capabi lity of structural walls to withstand the missi le impact.

Provide also the wall thicknesses and concrete parameters used for the missile barrier calculations.

III-4C Internally Generated Missi les Provide a description of areas outside the containment (Section 5.1.2.8 of the FSAR addresses only internally generated missile for the containment) that require missile protection (except for tornados).

For all Category I structures, including the containment, provide the procedure used to determine the requirements of the barriers used to stop the missi les and a description of the missi les considered including the size, weight and probable impact area.

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Page 2 of Enclosure - Ginna Station III-7C Delamination of Prestressed Concrete Containment Structures Provide design and/or as built drawings of the containment dome and shell showing the radial steel arrangement.

If no radial steel was used, provide the procedure used to assess the likelihood of delaminations in the concrete.

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