ML20070C412

Submits Response to Request for Addl Info Re TS Change Request 92-13 Re Spray Pond Piping Network Above Frost Line Be Drained within 1 H After Being Used When Ambient Air Temp Below 40 F

ML20070C412
Person / Time
Site:	Limerick
Issue date:	06/27/1994
From:	Hunger G PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9407050254
Download: ML20070C412 (3)

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Nut. lear Group ileadauwiers 9% CheuertnwA Boulemd Myte, PA 1W6?M91 i

June 27,1994  ;

Docket Nos. 50452 50 353 License Nos. NPF 39 NPF-85 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

Subject:

Limerick Generating Station, Units 1 and 2 Technical Specifications Change Request No. 92134 fiesponse to Request for AdditionalInformation Gentlemen:

This letter is being submitted in response to the NRC'e request for additional information concerning Limerick Generating Station (LGS), Units 1 and 2 Technical Specifications (TS)

Change Request No. 9213-0. PECO Energy Company submitted TS Change Request No. {

92-13-0 by letter dated August 25,1993, requesting that the TS (Appendix A) of Operating License Nos. NPF-39 and NPF-85 for LGS, Units 1 and 2, respectively, be amended to require '

that the Spray Pond spray piping network above the frost line be drained within (1) hour after being used when the ambient air temperature is below 40 F.

Subsequently, during a telephone conversation between PECO Energy and NRC representatives, the NRC requested that we provide additional information regarding the measures that will be taken to ensure that the Spray Pond spray piping networks are drained within one (1) hour after use when ambient air temperature drops below 40 F. Therefore, in response to the NRC request, the following administrative controls will be implemented to ensure that the Spray Pond spray piping network is drained within one (1) hour after use when amblent air temperature is below 40 F. This additional Information is being submitted under affirmation, and the required affidavit is enclosed.

o The plant procedure that governs the draining of the Spray Pond spray piping networks will be revised to include a " time period

• In which personnel will be directed to drain the spray networks wthin one (1) hour after use, regardless of air temperature. The " time period

• chosen for performing this activity will be ~

November 1 through March 31, since draining spray networks within one (1) l i hour after use will preclude any potential for freezing. This ' time period' was selected based on the daily average temperatures as recorded at the l Philadelphia Intemational Airport by the Natiot,al Weather Bureau as indicated in t the table below.

1 9407050254 940627 yDR ADOCK 05000352 )

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( Date Average Dalty Temperature (ADT)

December $* ADT Drops Below 40'F (39'F) i December 22"d ADT Drops Beim Freezing (32 F)

February 14* ADT Rises Above Freezing (33*F)

March 11* ADT Rises _

a 40 F (41'F)

In addition, amblent air temperature wRI be recorded each time the spray networks are secured. Therefore, should the ambient air temperature drop below 40*F during the remaining annual period (i.e., AprH 1 through October ,

31), the plant procedure will again direct personnel to draln the piping within one (1) hour. i o in the event this procedural requirement is not followed, personnel will then be ,

required to determine the ambient temperature that ex't.d between the time tne .

spray networks were in service and when they were drair.6d in order to determine TS compiiance.

If you have any questions or require additional infom1ation, please do not hesitate to contact us.

i Very truly yours, l .h. h,' , ,

G. A. Hunger Jr.

i Director Licensing F

Enclosure l cc: T. T. Martin, Administrator, Region 1. USNRC (w/ enclosure)

N. S. Perry, USNRC 5enlot Resident inspector, LGS (w/ enclosure)

R. R. Janati, Director, PA Bureau of Radiological Protection (w/ enclosure)

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. COMMONWEALTH OF PENNSYLVANIA  :

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COUNTY OF CHESTER  :

W. H. Smith, lit, be'ng first duty sworn, deposes and says i

That he is Vice President of PECO Energy Company; the Applicant herein; that he has read the foregoing response to the request for additional information for Technical Specifications Change Request .

i No. 92134 for Limerick Generating Station, Units 1 and 2, Facility Operating Ocense Nos. NPF-39 and NPF-85, to require that the Spray Pond spray piping networks above the frost line be dralned within (1) hour j attor boing used when the ambPr.it air temperature is below 40'F, and knows the contents thereof; and that 4

the statements and matters set forth therein are true and correct to the best of his knowledge, information, and belief.

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Vice President SubscritM and sw n to

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before me this ' day of W 1994.

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