ML19350B419

Supplemental Testimony in Response to ASLB Question & Ucs Contention 12 on Relocation of Equipment in TMI-1 Reactor Bldg Due to Flooding Concerns Engendered by TMI Accident. W/Prof Qualifications & Certificate of Svc

ML19350B419
Person / Time
Site:	Three Mile Island
Issue date:	03/10/1981
From:	Croneberger D METROPOLITAN EDISON CO.
To:
References
NUDOCS 8103200504
Download: ML19350B419 (12)

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BEFORE THE ATOMIC SAFETY AND LICENSING BOARD _'~'

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In the Matter of )

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METROPOLITAN EDISON COMPANY ) Docket No. 50-289

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(Three-Mile Island Nuclear

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Station, Unit No. 1)' )

LICENSEE'S SUPPLEMENTAL TESTIMONY OF DONALD K. CRONEBERGER IN RESPONSE TO 90ARD QUESTION UCS 12 (SAFETY CI ASSIFICATION/ ENVIRONMENTAL QUALIFICATION) 9 O

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OUTLINE The purpose and objective of this testimony is to supplement that testimony previously presented by Licensee in response to UCS Contention No. 12 regarding the environmental qualification of equipment important to. safety. In particular, this testimony addresses the relocation.of equipment in the TMI-1 reactor. building in response to flooding concerns

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INTRODUCTION In response to UCS Contention No. 12 and the Board Questions regarding this contention, Licensee initially filed and presented the following direct testimony:

Licensee's Testimony of Robert W. Keaten, George R. Braulke and George J. Brazill in Response to UCS Contention No. 12, UCS Contention No. 14 and UCS Contention No. 3 (Safety Classification),

excerpts relating to t'CS Contention No. 12 following Tr. 6802.

Licensee's Testimony of George R. Braulke in Response to Board Cuestions on UCS Contention 12, following Tr. 6802.

Testimony was_ presented by Mr. Braulke regarding the probable causes of instrument failures at TMI-2 following the accident, including extended submergence in the containment building sump. Safety Classification Testimony at 5. During examination of Mr. Braulke, and'later of Mr. Keaten, on this issue, the Board and~ parties raised the following questions which the witnesses were unable to answer , . as ongoing studies

were still in~ process

1. Is the recalculated flood level for TMI-l higher y or-lower than the calculations performed at the operating license review stage? Tr. 6886, 7633.

2. What ~is the level at which relocated instru-mentation'.(safety =related;and-non-safety related) is located? Tr.-6925, 7783-7784.-

3._ Is any of.the non-safety related instrumentation

.listec in Tables 1 and 2 oof Licensee's Safety i

Classification testimony which is being relocated included in Licensee's response to I & E Bulletin 79-01B or will be included in supplements thereto? 8 Tr. 7663-7665.

This testimony, by Mr. Donald K. Croneberger, GPU Manager of Engineering and Design, supplements Licensee's previous testimony in response to UCS Contention No. 12 and

.specifically addresses those questions listed above.

SUPPLEMENTAL RESPONSE TO BOARD QUESTION UCS 12 BY WITNESS CRONEBERGER:

Following the March 28,-1979 accident at TMI-2, the water level inside the containment building exceeded the installed elevation of certain instrumentation. -It is believed that this submergence caused, or contributed to, the equipment failures which occurred in the weeks following the accident (see Tables 1 and 2 of' Licensee's Safety Class;fication Testimony).

'The equipment-failures encountered at TMI-2 led GPU to initiate a study to determine whether a similar problem would arise at TMI-l following'a' design basis accident. It.has

~been determined that the postulated accidents which. produce the

. worst-- case design basis water level inside containment are large break loss of~ coolant. accidents-(LOCA)'and'steamline (SL) feedline (FL) break' accidents. By comparing the water

-generated 'duringithese . scenarios to. the- available volume in the

teactor-building, it has been calculated that the water level l

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above the reactor building basement floor would be 5.66 ft. for '

a LOCA and 4. 8 0 f t . for a SL/FL break. No specific flood level was calculated at the Operating License review stage for the purpose of determining equipment submergence. The calculations performed at that time focused or assuring adequate net positive suction head for ECCS and reactor building spray pumps.

In reviewing the importance of those instruments which failed following the TMI-2 accident and which could be similarly impacted at TMI-1, GPU concluded that the Steam Generator and Pressurizer Level instruments, which are parameters. utilized to achieve safe shutdown and to assist in maintaining natural circulation, should be relocated above the newly-calculated design basis water level. The transmitters for these instruments, previously located in the lowest elevation of the rcactor building, have been raised to above elevation 286.75 ft. (or 5.75 ft. above the reactor building basement floor). No other instrumentation listed in Tables 1 and 2 of Licensee's Safety Classification Testimony is being relocated. We believe this measure will provide these instruments with the capability to withstand the design basis environment to which they - could be subjected. The environmental qualification of these level transmitters has been reported to the NRC in Licensee's' response to I & E Bulletin 79-013, submittal'dcted' January ~30, 1981 in the section entitled "AdditionaliAccident'MonitoringLEquipment,"at page 1-7.

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In summary, the action taken by GPU to raise the Steam Generator and Pressurizer Level instrumentation will provide reasonable assurance that this instrumentation will be available to safely respond to postulated accident conditions when needed.

DONALD K. CRONESERGER Business Address: GPU Service Corporation 100 Interpace Parkway Parsippany, New Jersey 07054-Education: B.S.C.E., The Pennsylvania State University, 1959.

Advanced Contract Administration, Civil Engineer Corps Officers School.

Experience: Manager, Engineering and Design Department, GPU Service Corp., 1978 to present. Management responsibility for mechanical, electrical, engineering mechanics, civil / structural and design drafting for all GPU system nuclear stations (and for fossil plants prior to the formation of the GPU Nuclear Group).

Manager, Design Department, GPU Service Corp., 1978. Management responsibility

~for design engineering for modifications to all GPU system nuclear and'fosril generating stations.

Manager, Structural Engineering, Power Engineering Division, Gilbert Associates, 1976 to 1978. Responsible for structural and architectural engineering services for all nuclear and fossil generating facilities.

Chief Structural Engineer, Power Engineering Division, Gilbert Associates, 1969 to 1976.

Technical and administrative supervision of structural engineering for all nuclear

and fossil generating stations.

Project Manager, Gilbert Associates, 1969.

Performed balance of plant studies for the liquid metal fast breeder reactor demons tration . plant .

Project Structural Engineer, Gilbert Associates, 1967 to 1969. Structural engineering supervision for Metropolitan Edison Company's Three Mile Island,

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Unit 1, 871 MW, nuclear; and Florida Power Corporation's Crystal River, Unit 3, 855 MW, nuclear. Consulting for studies and design of special structures regarding nuclear power facilities.

Project Structural Engineer, Gilbert Associates, 1965 to 1967. Structural design for Rochester Gas and Electric Corporation's Ginna Unit 1, 490 MW, nuclear.

Structural Engineer, Gilbert Associates, 1964 to 1965. Design of foundations, concrete work and miscellaneous structures for Keystone, Units 1 and 2, 900 MU each.

Project Manager, Gilbert Associates, 1964. Alterations to Western Electri.'

Company Building, Laureldale, Pennsylvania.

Assistant Str.uctural Engineer, Gilbert Associates, 1963 to 1964.

studien for Republic Steel,' Foundation Bethlehem Steel, Homer City and Conemaugh Station.

Structural design of sewage treatment facilities for six municipalities.

Decign of foundations for steel structures,

-Baltimore Gas and Electric Company's Herbert Wagner Station, Unit 1, 125 MW.

Assistant Structural Engineer, Modjeski and Masters, 1962 to 1963. Design and i design review of long span bridges.

U.S. Navy, 1959 to 1962. Contract admin-istration for construction of radio telescope and ancillary facilities.

Professional Affiliations: Registered Professional Engineer, Pennsylvania National Society.of~ Professional Engineers American Society of Civil Engineers -

American Concrete Institute American Society _for Testing and Materials LInternational Association for Bridge and Structural Engineering American Society of Mechanical Engineers Subcommittee-on Nuclear Certification e

American Society _for the Advancement of Science American Society of Mechanical Engineers ACI-ASME Technical Committee on Concrete Pressure Ccmponents for Nuclear Service, Chairman Publications: " Robert.E=mett Ginna Nuclear Power 91 ant Containment Vessel TMI Nuclear Station,"

American Power Conference, Pennsylvania Electric Association, 1968.

" Prestressed Concrete Containment Vessel Criteria for Reinforced Concrete Containments,"

ACI Fall Convention, 1969.

" Containment Vessel Pressure Test," A.S.C.E.

National Meeting, 1969.

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" Low - Tuned Foundations for Large Turbine

. Generators," POWER ENGINEERING, 1973.

" Interaction of Soil and Power Plants in Earthquakes - Discussion," ASCE JOURNAL of the POWER DIVISION, 1973.

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UNITED STATES OF AMERICA i 2 C 21 >

NUCLEAR REGULATORY COMMISSION 3;  % ::.e:c, Z s

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In the Matter of ) ~ g i g e)

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METROPOLITAN EDISON CCMPANY ) Docket No. 50 7 1 I v/

(Thrse Mile Island Nuclear

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1 Station, Unit No. 1) ) .oan. c '1 h i93I " '!; .

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CERTIFICATE OF SERVICE /js s l' e A'/

g I hereby certify that copies of " Licensee's Supple %enta.1 Testimony of Donald K. Croneberger in Response to Board Que=cion UCS 12 (Safety Classification / Environmental Qualification)" will be served u;-on the Atomic Safety and Licensing Board by hand delivery at the hearing on March 11, 1981 and were served this 10th day of March, 1981 by hand delivery upon Ellyn R. Weiss, Esquire, Counsel for Union of Concerned Scientists and.by deposit in the U.S. mail,.first class, postage prepaid, to the other parties identified on.the attached Service List.

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Thomas A. Baxter I)So3 S.

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T UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION BEFORE THE ATOMIC SAFETY AND LICENSING BOARD In the Matter of )

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METROPOLITAN EDISCN COMPANY ) Docket No. 50-239

) (Restart)

(Three Mile Island Nuclear )

Station, Unit No. 1) )

SERVICE LIST Ivan W. Smith, Esquire Jchn A. Levin, h~uire Chai=an Assistant Cr.trsel Atanic Safety ard Licersing Perrsylvania Public Utility Cc=ttssicn Berrd P.O. Sex 3265 U.S. Nuclear Pegulatory Carlssicn F2=isburg, Perrsyha:tia 17120 Washingten, D.C. 20555 Karin W. Carter, Escuim Dr. Walter H. Jordan Pcbert Adler, Esquire Atatic Safety and Licersing Assistant AttcIney General Board Panel 505 Executive Fouse

- 881 West Outer Crim P.O. Scx 2357 Cak Ridge, Tennessee 37820 Ha =isburg, Pernsylvania 17120 Dr. Lirda W. Little '

Jchn E. Plnnich Atanic Safety and Licersing C'.airan, Dauphin Qunty Board Scard Panel of Carissioners 5000 He=itage Drive- Dauphin County Ccurthouse Raleigh, North Caroli 2 27612 Front and Market Streets Jarms R. Tourtellette, Esquim Office of the Executive Iagal Director Walter W. Cchen, Esquire U.S. Nuclear Pegulatory Ccrrission Ccrsuner Adv::cate Washing cn, D.C. 20555 Office of Censuner Adar. ate 1425 Straterry Sgare Docketing and Service Sectica Harrisburg, Perr.sylvania'- 17127 Office of the Secretary U.S. Nuclear Pegulatory Cerrission Washingtcr., D.C. 40555

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, Jordan D. C=ningham, Esquire Pcber: Q. Pollard 2320 North Second Street 609 .tntpelier Street Marisburg, Perr.sylvania 17110 Balti.cre, Mr/lr.d 21218 Ms. It.;nise Bradferd Cha=cey Kepford "MI AL.".C Judith H. Jchr.srud 315 Peffer Street Envi== ental Coalitien en Nuc'"- Oc'aer Harrisburg, Perrsflvania 17102 433 Orlando Amnue State College, Perrs/lvania 16801 Ellyn R. Weiss, Esqc. ire Ha_'.:en & Weiss Marvin I. Ieais 1725 Eye Street, N.N., Suite 506 6504 Bradferd Terrace Washing a , D.C. 20006 Philada'phia, Pennsylvania 19149 Steven C. Sholly Marjorie M. Aaredt Unicn of Ccnce r.ed Scientists R. D. 5 1725 Eye Street, N.W., Suite 601 Ccatesville, Pennsylvania 19320 Washing cn, D.C. 20006 2.cmas J. Germir.e, Escui.m Gail Bradford Deputy Attorney. General ANGRY Divisien of Lra - Pccm 316 245 West Philadelphia Street 1100 Pay':rnd Boulevard York, Perrs/ vania 1 _17404 Ne,e.rk, Nea Jersey 07102 William S. Jordan, III, PA%m Ha=cn & Weiss 1725 Eye Street, N.W., Suite 506 Washingten, D.C. 20006 o

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