ML20203H969

Forwards RAI Re 950509 Application for Review & Approval of site-specific License for Isfsi.Rai Addresses Concrete Pad Design,Transporter Design,Cask Loading Operations & Record Keeping Requirements

ML20203H969
Person / Time
Site:	North Anna
Issue date:	02/13/1998
From:	James Shea NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
To:	Ohanlon J VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
References
TAC-L22113, NUDOCS 9803030380
Download: ML20203H969 (5)

Text

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. February 13, 1998

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M(, J:m:s P. O'Hanlon Senior Vice President - Nuclear Virgini Electric and Power Company Innsbrook Technical Center 5000 Dominion Boulevard Glen Allen, VA 23060

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION (RAl) CONCERNING THE APPLICATION FOR THE NORTH ANNA INDEPENDENT SPENT FUEL STORAGE INSTALLATION (TAC NO. L22113)

Dear Mr. O'Hanlon:

n By letter dated May 9,1995, you submitted an application to the Nuclear Regulatory Commission in accordance with 10 CFR Part 72 for the review and approval of a site-specific license for an independent spent fuel storage installation (ISFSI) at the North Anna Nuclear Power Station site.

The staff has determined that additional information is required to determine compliance with 10 CFR Part 72. The attached RAI addresses the concrete pad design, transporter design, cask loading operations, and record keeping requirements. You should note that - ine staff review continues, it is likely that additional information will be needed to complete the review.

You are requested to respond in a time frame that is consistent with your proposed licensing and loading schedule and yet which allows the staff ample time to complete its review. Please reference the Docket No and the above TAC No in future correspondence related to this request.

If you have any comment or question concerning this request, please contact me at 301-415-1428.

Sincerely,

[ original signed by /s/]

Joseph W, Shea, Project Manager Spent Fuel Licensing Section Spent Fuel Project Office Office of Nuclear Material Safety and Safeguards Dockets 72-16 (50-338/339)

Enclosure:

Request for Additional Information kh [USIN CTM did

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Distribution: (Control No. 010S)

Dockets NRC File Center PUBLIC NMSS r/f .Iffg( f I SFPO r/f SFLS r/f CHaughney SShankman 4 SWhaley WReamer, OGC NKalyanam, NRR WGloersen. Ril OFC SFPO El, SFPO E SFPO E SFPO #6

d. NAME JShea dd VTharpe FSturz bl.) A EJLeeds DATE 2/11/98 2/ 19 8 2,/3 /98! '

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• ' COVER & ENCLOSURE N = NO COPY 9003030300 900213 RD COPY GSNORTH_ANU22113.RA6 PDR ADOCK 05000338 Y PDR

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t REQUEST FOR ADDITIONAL INFORMATION This document, titled Request for Additional Information (RAI), contains a compilation of additional information requirements, identified to-date by the Nuclear Regulatory Commission staff, during its review of the applicant's application and Safety Anslysis Report (SAR). This RAI follows the same format of the applicant's SAR.

Each individual RAI describes information needed by the staff for it to complete its review of the application and/or the SAR and to determine whether the applicant has demonstrated compliance with the regulatory requirements. Where an individual RAI relates to the applicant's apparent failure to meet one or more regulatory requirements, or where an RAI specifically focuses on compliance issues associated with one or more specific regulatory requirements (e g., specific design criteria or accident conditions), such requirements will be specified in the individual RAl.-

ENCLOSURE i

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• RE: Design foetures of the North Anna ISF81 and transporter, cask loading operations, and record keeping requirements l The following regulatory reovirernents are applicable: 10 CFR 72.26,72.30(d) 72.44,72.72, and Subpart F. It should be noted that other regulutory requirements may be applicable to this section.

1.0 NORTH ANNA ISFSI DESIGN CRITERIA 11 BACKGROUND:

l Virginia Power proposes to use the TN 32 as its storage cask at the North Anna ISFSI. The TN-32 TSAR tip-over and cask bottom end drop er tyses assumed the following bounding conditions for the concrete storage pad: a) the pad is not more than 3 feet tnick, b) the concrete strength is not greater than 4,000 psi and, c) the soll modulus of elasticity is not greater than 40 ksi.

Section 5 of the North Anna SAR Technical Sp6cifications list the concrete storage pad design thickness as two feet ' nominal". Additionally, chapter 4 of the SAR states that the concrete pad shall be designed with a minimum concrete strengoof 3000 psi however, no marimum strength is given. The concrete pad paramaters proposed by Virginia Power do not fully capture the bouncing conditions assumed in the TN 32 TSAR. Therefore, the staff considers the proposed concrete pad design criteria inadequate to ensure that the TN 32 could meet the ICFSI design criteria listed in Table 3.41 that states the ' cask is capable of tipping over and rolling without compromising the SSSC integrity and without physical damage to fuel or loss of suberiticality'.

1.2 REQUEST

1.2.1. Clarify the concrete pad design criteria used for the North Arina ISFSI and justify ar,y deviation from the bounding concrete pad design criteria considered in TN 32 TSAR. If the North Anna design criteria are different from the TN 32 TSAR design criteria, demonstrate that the TN 32 will maintain its integrity during a tip-over or end drop event at the North Anna ISFSI.

1.2.2. Provide a proposed design criteria that establishes clearer, more comprehensivt .;iteria for the North Anna ISFSI.

2.0 TRANSPORTER

2.1 BACKGROUND

The TN 32 storage cask has been evaluated for an 18 inch drop onto a concrete pad as described in 1.1 above. The North Anna SAR Technical Specifications limit the cask lift height to 18 inches and Section 4.3.3 of the SAR states that the transporter is designed to limit SSSC lift height to less than 15 inches, however there is no discussion of h0w this limit is maintained.

2.2 REQUEST

i

. Provide additional detail on the transporter design features that limit the cask lifting height to 15 inches.

3.0 CONTAMINATION FROM CASK LOADING OPERATIONS

3.1 BACKGROUND

Section 6 of the SAR discusso the control of contamination for various aspects of the essk loading and unloading operations. No discussion is provided to address any contamination on the cask crono lifting equipment.

3.2 REQUEST

f

- Provide a discussion of the design features and/or operational practices that will prevent the poteritial weather driven spread of contamination from the cask crane lifting equipment as it traverses from the spent fuel pool to outside the Decontamination Building where the loaded  ;

cask is placed prior to transporting to the ISFSI pad. +

4.0 RECORD KEEPING REQUIRF.MENTS

4.1 FtACKGROUND

Gection g.4.2 of the North Anna SAR states that records will he maintained on the identity of each fuel assembly, in accordance with 10 CFR 72.72. The requirements for keeping records in duplicate and for a minimum time period after the spent fuel is transferred from the ISFSI, as specified in 10 CFR 72.72, are not addressed in the SAR. The record keeping requirements of 72.72(b) and (c) are also not addressed. Additionsfly, the record ke: ping require *ents of 10 -

CFR 72.30(d) tre not addressed.

l l 4.1 REQUEST:

Provide additional description of the methods used to comply with the record keeping requirements of 10 CFR 72.72(a),72.72(b),72.72(c),72.72(d), and 12.30(d).

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Mr. J. P. O'Hanlon North Anna Power Station Virginia Electric & Power Company Units 1 and 2 cc:

Mr. William C. Porter, Jr. Robert B. Strobe, M.D., M.P.H.

County Administrator State Health Commissioner Louisa County Office of the Commissioner P.O. Box 160 Virginia Department of Health Louisa, Virginia 230g3 P.O. Ecx 2448 Richmond Virginia 23218 Michael W. Maupin, Esqu;,0 Hunton and Williams Regional Administrator, Region il Riverfront Plaza, East Tower U.S. Nucleer Regulatory Commission 951 E. Byrd Street Atlanu Federal Center Richmond, Virginia 23219 61 Forsyth St., SW, Suite 23T85 Atlanta, Georgia 30303 3415 Dr. W. T. Lough Virginia State Corporation Mr. W. R. Matthews, Manager Commission North Anna Power Statiori Division of Energy Regulation P. O. Box 402 P. O. Box 1197 Mineral, Virginia 23117 Richmond, Virginia 23209 Mr. Al Belisle Old Dominion Electric Cooperative U.S. Nuclear Regulatory Commission 4201 Dominion Blvd. Atlanta Federal Center G'an Allen, Virginia 23060 61 Forsyth St., SW, Suite 23T85 Atlanta, Georgia 30303-3415 Mr. James H. McCarthy, Manager Nuclear Licensing & Operations Mr. David Christian, Manager Support Surry Power Station Virginia Electric and Power Company Virglola Electric and Power Company Innsbrcok Technical Center 5570 Hog Island Road 5000 Dominion Blvd. Surry, Virginia 23883 Glen Allen, Virginia 23060 Office of the Attorney General Commonwealth of Virginia -

900 East Main Street Richmond, Virginia 2321g Senior Res! dent inspector North Anna Power Station U.S. Nuclear Regulatory Commission 1024 Haley Drive

- Mineral, Virginia 23117

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