ML20135E553

Forwards Request for Addl Info Re 850801 Submittal Concerning 850613 Request for Approval of New Spent Fuel Storage Racks.Response Requested No Later than 851007

ML20135E553
Person / Time
Site:	Peach Bottom
Issue date:	09/05/1985
From:	Stolz J Office of Nuclear Reactor Regulation
To:	Bauer E PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
References
NUDOCS 8509160441
Download: ML20135E553 (3)

Text

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September 5,1985 i

l Dockets Nos. 50,277 DISTRL,BUTION and 50-278 Juecteeffle[, ACRS-10 i NRC PDR RIngram l L PDR GGears l ORB #4 Rdg Gray File Hr. Edward G. . Bauer, Jr. HThompson Vice President and General Counsel OELD

Philadelphia Electric Company EJordan 2301 Market Street BGrimes Philadelphia, Pennsylvania 19101 JPartlow

SUBJECT:

REVIEW OF PHILADELPHIA ELECTRIC COMPANY'S REQUEST FOR APPROVAL OF NEW SPENT FUEL STORAGE RACKS - REQUEST FOR ADDITIONAL INFORMATION On June 13, 1985, the Philadelphia Electric Company (PECO) submitted its

, request for approval of _ new spent fuel storage racks. By letter dated August 1,1985, PEC0 provided the NRC staff with a revised submittal which contained your complete analyses and Safety Evaluation in support.of its request.

In our review of your submittal, we have come upon certain areas which

require additional information or clarifications before we can complete our l review and evaluation.

j Please review the enclosed request for additional information and provide

your responses no later than October 7,1985 so that we may continue our review toward your requested completion date of January 1986.

i The reporting and/or recordkeeping requirements of this letter affect fewer 5

than ten respondents; therefore, OMB clearance is not required under P.L.96-511.

Sincerely,

=cacwsnanaht

nu z. uw l

! John F. Stolz, Chief i Operating Reactors Branch #4 Division of Licensing j 4

Enclosure:

Request for Additional Information cc w/ enclosure: '

l j See next page 8509160441 85090'J 27

PDR ADOCK O

, P 4:DL #4:DL i siCr olZ 85 8/jv/85 l l i l i l L j

Mr. E. G. Bauer, Jr. Peach Bottom Atomic Power Station, Philadelphia Electric Company Units 2 and 3 cc:

Mr. Eugene J. Bradley Mr. R. A. Heiss, Coordinator Assistant General Counsel Pennsylvania State Clearinghouse Philadelphia Electric Company Governor's Office of State Planning 2301 Market Street and Development Philadelphia, Pennsylvania 19101 P.O. Box 1323 Harrisburg, Pennsylvania 17120 Troy B. Conner, Jr., Esq.

1747 Pennsylvania Avenue, N.W. Mr. Thomas M. Gerusky, Director Washington, D.C. 20006 Bureau of Radiation Protection Pennsylvania Department of Thomas A. Deming, Esq. Environmental Resources Assistant Attorney General P.O. Box 2063 Department of Natural Resources Harrisburg, Pennsylvania 17120 Annapolis, Maryland 21401 Mr. Albert R. Steel, Chairman Philadelphia Electric Company Board of Supervisors ATTN: Mr. R. Fleishmann Peach Bottom Township Peach Bottom Atomic R. D. #1 Power Station Delta, Pennsylvania 17314 Delta, Pennsylvania 17314

Mr. M. J. Cooney, Superintendent Generation Division - Nuclear Philadelphia Electric Company 2301 Market Street Philadelphia, Pennsylvania 19101 Mr. Anthony J. Pietrofitta, Genera) Manager Power Production Engineering Atlantic Electric P. O. Box 1500 1199 Black Horse Pike

'Pleasantville, New Jersey 08232 Resident Inspector U.S. Nuclear Regulatory Commission Peach Bottom Atomic Power Station P.O. Box 399 Delta,' Pennsylvania 17314 Regional Administrator, Region I U.S. Nuclear Regulatory Commission ,

631 Park Avenue King of Prussia, Pennsylvania 19406 i

PEACH BOTTOM ATOMIC POWER STATION, UNITS 2 AND 3 REQUEST FOR ADDITIONAL INFORMATION PERTAINING TO HIGH DENSITY SPENT FUEL STORAGE RACKS 231.1 The submittal lacks sufficient information to permit a complete review and evaluation of the k-effective value of the racks.

Picase provide a drawing (or other representation) of the racks which includes dimensions, materials, and other pertinent information sufficient to permit an independent evaluation of the rack reactivity.

231.2 The present Peach Bottom Technical Specifications limit storage in the spent fuel racks to assemblies having less than 17.3 grams /cm of U-235 in their dominant (most reactive) portions. Please confirm that this value is consistent with 3.5 percent enrichment or alter the Specification to conform to the correct value.

450.1 Discuss the anticipate burnup of the highest burnup assembly to be stored in the new high-density spent fuel storage racks.

450.2 Please provide a discussion of the apparent discrepancy between (5.3.1.1) Technical Specification 4.10.C which indicates that the spent fuel pool water depth shall provide at least an 81 ft. water cover over the stored spent fuel and the staff's assumption of a DF of 100, corresponding to a 23 ft. water cover, in its refueling accident evaluation in its August 11, 1972 SER. Provide the actual present water depth over the spent fuel.

450.3 Discuss the anticipated variations in water level of the spent fuel (5.3.1.1) pool (s) during and following the reracking procedures.

450.4 Discuss the variation of spent fuel pool water volatile iodine (5.3.1.1) decontamination factor (DF) a) during and b) after completion of the reracking procedures. Provide the basis for this assessment, justifying the DF's selected.

450.5 Discuss the effect of the variation of pool water DF on the (5.3.1.1) consequences of fuel handling accidents previously evaluated in the PBAPS updated FSAR.

450.6 Discuss the extent of any present spent fuel pool water loss (5.3.1.1) through leakage. Provide information on any anticipated changes in leakage due to the presence of the new high-density racks.

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