ML17158A020

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Requests Addl Info Re Loss of Spent Fuel Pool Cooling Events at Plant.Reply Requested by 931203
ML17158A020
Person / Time
Site: Susquehanna  Talen Energy icon.png
Issue date: 11/23/1993
From: James Shea
Office of Nuclear Reactor Regulation
To: Byram R
PENNSYLVANIA POWER & LIGHT CO.
References
TAC-M85337, NUDOCS 9312030202
Download: ML17158A020 (5)


Text

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4 November 23.

1993 Docket Nos.

50-387 and 50-388 Mr. Robert G.

Byram Senior Vice President-Nuclear Pennsylvania Power and Light Company 2 North Ninth Street Allentown, Pennsylvania 18101

Dear Mr. Byram:

SUBJECT:

RE(VEST FOR ADDITIONAL INFORMATION (RAI) CONCERNING LOSS OF SPENT FUEL POOL COOLING EVENTS, SUSQUEHANNA STEAM ELECTRIC STATION, UNITS 1

AND 2 (TAC NO. M85337)

The NRC staff is continuing to review the information provided in your August 16, 1993 submittal and the information discussed during a telephone conference on November 9, 1993.

The staff has determined that additional information is required to complete its evaluation of radiation levels and expected operator doses during activities to mitigate a loss of spent fuel pool cooling.

The staff's RAI is enclosed.

Your reply is requested by December 3,

1993.

This request affects 9 or fewer respondents and, therefore, is not subject to Office of Management and Budget review under P.L.96-511.

If you have any questions, please contact me at (301) 504-1428.

Sincerely,

/S/

Joseph W. Shea, Project Manager Project Directorate I-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation

Enclosure:

Request for Additional Information cc w/enclosure:

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UNITED STATES NUCLEAR REGULATORY COMMISS(ON WASHINGTON, D.C. 20555-0001 November 23.

1993 Docket Nos.

50-387 and 50-388 Hr. Robert G.

Byram Senior Vice President-Nuclear Pennsylvania Power and Light Company 2 North Ninth Street Allentown, Pennsylvania 18101

Dear Mr. Byram:

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION (RAI) CONCERNING LOSS OF SPENT FUEL POOL COOLING EVENTS, SUS(UEHANNA STEAM ELECTRIC STATION, UNITS 1

AND 2 (TAC NO. H85337)

The NRC staff is continuing to review the information provided in your August 16, 1993 submittal and the information discussed during a telephone conference on November 9,

1993, The staff has determined that additional information is required to complete its evaluation of radiation levels and expected operator doses during activities to mitigate a loss of spent fuel pool cooling.

The staff's RAI is enclosed.

Your reply is requested by December 3,

1993.

This request affects 9 or fewer respondents and, therefore, is not subject to Office of Management and Budget review under P.L.96-511.

If you have any questions, please contact me at (301) 504-1428.

Since ly,

Enclosure:

Request for Additional Information J

se W. Shea, Project Manager P oject Directorate I-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation cc w/enclosure:

See next page

ENCLOSURE RE VEST FOR ADDITIONAL INFORMATION REGARDING LOSS OF SPENT FUEL POOL COOLING EVENTS Provide a detailed description of the modeling techniques used to generate the 4.22 Rem cited in the August 16, 1993 submittal as the dose received during operation of the spent fuel pool emergency service water supply valves.

Describe in detail the time-motion analysis performed to determine exposure time associated with required operator actions.

Include the parameters and assumptions used to generate the contained and airborne source terms and calculate the respective dose components associated with each segment of the time-motion analysis.

Provide operator dose estimates for those operator actions needed to maintain the normal spent fuel pool cooling function under DBA accident conditions, assuming the normal spent fuel pool cooling system is operational following an accident.

Consider those actions needed to restore normal spent fuel following automatic or manual load shed of the spent fuel pool cooling system.

Include the same level of detail as in your response to question 1.

Provide operator dose estimates for those operator'ctions needed to maintain alternative spent fuel pool cooling functions under DBA accident conditions (i.e.

use of accident and non-accident unit RHR systems in fuel pool cooling assist

mode, use of non-accident unit spent fuel pool cooling system to cool the accident unit fuel pool, etc.),

assuming the accident unit normal spent fuel pool cooling system has failed as a result of a LOCA.

Include the same level of detail as in your response to question l.

Mr. Robert G.

Byram Pennsylvania Power

& Light Company Susquehanna Steam Electric Station, Units 1

& 2 CC:

Jay Silberg, Esq.

Shaw, Pittman, Potts

& Trowbridge 2300 N Street N.W.

Washington, D.C.

20037 Bryan A. Snapp, Esq.

Assistant Corporate Counsel Pennsylvania Power

& Light Company 2 North Ninth Street Allentown, Pennsylvania 18101 Mr. J.

M. Kenny Licensing Group Supervisor Pennsylvania Power

& Light Company 2 North Ninth Street Allentown, Pennsylvania 18101 Mr. Scott Barber Senior Resident Inspector U.

S. Nuclear Regulatory Commission P.O.

Box 35 Berwick, Pennsylvania 18603-0035 Mr. William P. Dornsife, Director Bureau of Radiation Protection Pennsylvania Department of Environmental Resources P. 0.

Box 8469 Harrisburg, Pennsylvania 17105-8469 Mr. Jesse C. Tilton, III Allegheny Elec. Cooperative, Inc.

212 Locust Street P.O.

Box 1266 Harrisburg, Pennsylvania 17108-1266 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, Pennsylvania 19406 Mr. Harold G. Stanley Vice President-Nuclear Operations Susquehanna Steam Electric Station Pennsylvania Power and Light Company Box 467 Berwick, Pennsylvania 18603 Mr. Herbert D. Woodeshick Special Office of the President Pennsylvania Power and Light Company Rural Route 1,

Box 1797 Berwick, Pennsylvania 18603 George T. Jones Vice President-Nuclear Engineering Pennsylvania Power and Light Company 2 North Ninth Street Allentown, Pennsylvania 18101 Mr. David A. Lochbaum 80 Tuttle Road

Watchung, New Jersey 07060 Mr. Donald C. Prevatte 7924 Woodsbluff Run Fogelsville, Pennsylvania 18051