ML20063F230

Forwards Application for Amend to License NPF-3,changing TS Re Boron Dilution Requirements

ML20063F230
Person / Time
Site:	Davis Besse
Issue date:	01/31/1994
From:	Storz L CENTERIOR ENERGY
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20063F232	List: ML20063F230 ML20063F234 ML20063F238
References
2175, NUDOCS 9402140194
Download: ML20063F230 (2)

Text

e CENTEREOR:

. ENERGY t

300 Madison Avenue Louis E Storz  ;

To!edo. OH 43652 0001 Wee President-Nuclear.

419 249 2300 Daws-Besse Docket Number 50-346 License Number NPF-3 Serial Number 2175 January 31, 1994 United States Nuclear Regulatory Commission Document Control Desk Vashington, DC 20555 Subjec t : License Amendment Application to Revise Technical Specifications Regarding Boron Dilution Requirements ,

Gentlemen:

Enclosed is an application for an amendment to the Davis-Besse Nuclear Power Station (DBNPS), Unit Number 1 Operating License Number NPF-3, Appendix A, Technical Specifications, to reflect the changes attached.

The proposed changes involve Technical Specification (TS) 3/4.1.1.2 (Reactivity Control Systems-Boron Dilution), TS 3/4.9.8.1 (Refueling- J Operations - Decay Heat Removal and Coolant Circulation), TS 3/4.9.8.2  !

(Refueling Operations - Lov Vater Level), and associated TS Bases, j Technical Specification 3/4.1.1.2 requires that the flovrate of reactor ,

coolant through the Reactor Coolant System (RCS) be greater than or equal to'2800 gpm whenever a reduction in RCS boron concentration is '

being made. A minimum flovrate of at least 2800 gpm provides adequate [

mixing, prevents stratification and ensures that reactivity changes vill be gradual in the RCS. This TS is applicable in all plant Modes. 1 With the flovrate of reactor coolant through the RCS less than 2800 gpm, the TS Action statement requires the immediate suspension of all operations involving a reduction in RCS boron concentration. An ,

exception, applicable in Mode 6, allows the addition of water of lower boron concentration than the existing RCS boron concentration, provided that the boron concentration of the water to be added is equal to or ,

greater than the boron concentration corresponding to the more restrictive reactivity condition specified in-TS 3.9.1. The proposed change to TS 3/4.1.1.2 vould make the exception applicable in Mode 5 as y well as Mode 6, provided that in Mode 5.the boron concentration of the l vater to be added is equal to or greater than the boron concentration associated with the shutdown margin requirement of TS 3.1.1.1. A corresponding change to TS Bases 3/4.1.1.2 (Boron Dilution) is also ,

proposed.

Operohng Companies:

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Toledo Edison PDR ADOCK 05000346 i

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-1 Docket Number 50-346 j

. - License Number NPF-3 -i Serial Number 2175 Page 2 The proposed change to TS 3/4.9.B.1, which would add an exception applicable to'Hode 6, makes TS 3/4.9.8.1 and TS 3/4.9.8.2 consistent i E vith the current TS 3/4.1.1.2. A related' change to TS Bases 3/4.9.8 . '

(Coolant Circulation) is also proposed.

Toledo Edison requests that this amendment be issued by'the NRC by.  :

June 1, 1994, to support-the planning and scheduling of the. Ninth -i Refueling Outage (9RPO). The 9RF0 is currently scheduled to commence  :

on October 1, 1994. Should further information be required, please l contact Mr. Villiam T. O'Connor, Manager - Regulatory Affairs, at (419) 249-2366. l Very_truly yours, -i y w ]

ghC2ced

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Enclosure cc: J. B. Hartin, Regional Administrator, NRC Region III S. Stasek, NRC Region III, DB-1 Senior Resident Inspector '

R..J. Stransky, Jr., NRC/NRR DB-1 Project Manager l J. R. Villiams, Chief of Staff, Ohio Emergency Hanagement Agency,

.l State of Ohio (NRC Liaison)

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Utility Radiological Safety Board i

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