ML20070F231

Forwards Application for Amend to License NPF-3,changing Tech Spec 3/4.6.1.2 & Associated Bases to Increase Allowed Secondary Containment Bypass Leakage Rate from 0.015 La to 0.03 La

ML20070F231
Person / Time
Site:	Davis Besse
Issue date:	03/01/1991
From:	Shelton D CENTERIOR ENERGY
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20070F233	List: ML20070F231 ML20070F246 ML20070F249
References
1900, NUDOCS 9103080196
Download: ML20070F231 (2)

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CENTERIOR ENERGY Donald C. Shelton 30u Madison Avenus Vce President Nuclear Toledo, Oil 436520001 Davis Besse --

(419)249 2300 Docket l Number 50-346 License Number NPF Serial-Number 1900

-March 1, 1991

. United-States Nuclear Regulatory Commission

-Document Control Desk Vashington, D. C.-_20555

~ Subject s - License Amendment Request to Prease the Allowed Secondary Containment Bypass Leakage Ra m

Gentlemen

Enclosed is an application for an amendment to the Davis-Besse Nuclear Pwer Station, Unat -1 (DBNPS),- Operating License Number NPF-3, Appei

A Technical _ Specifications.(TS).

The proposed changes involve TS'3/4.6.1.2, Containment: Systems - Containment Leakage and its associated Bases.

These changes vould2 increase the' allowed secondary containment bypass leakage. rate from 0.015 La to 0.03 La, relocate the111st of containment

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, bypass lu.kage paths (Table 3.6-1) f rom the TS's to the Updated Safety Analysis = Report (USAR), and delete Surveillance Requirements-(SR)-leakage tests-for~typesioficontainment. penetrations'and containment isolation valves

which are-not-incorporated'ln the DBNPS design.. The revised containment-bypass.. leakage 11mitlvillJincrease the acceptable limit'for test results.

-As a result,3the potential for othertise unnecessary component rework and'

associated radiation exposure vill be reduced.-'The proposed changes do not L increase of fsi te dose : consequences of analyzed-accidents beyond ' those

_previously found to beiacceptable by=the Nuclear Regulatory Commission in.

the Safety Evaluation-Report (NUREG-0136)-for th_e DBNPS Operating License.

The secondary containment hypass leakage rate vill be measured.during the-upcoming-seventh retuaEleg orcrge..Accordingly, Toledo Edison requests that o

~ this amendment - be issan ^ey thel14uclear Regulatory Commission by September l',1991,ivits 1a.plementation _vithin 45 days' following is uance.

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License Number NPF-3 S,erial Number 1900 Page-2 If you have any questions regarding knis amendment request, please contact Mr. Robert V. Schrauder, Manager - Nuclear Licensing, at (419) 249-2366.

Very truly)yours, (7

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PVS/mmb enclosure cci P. H. Byron, DB-1 NRC Senior Resident Inspector A. B. Davis, Regional Administrator, NRC Region III D. C. Di Ianni. DB-1 NRC Senior Project Manager General J. Villiams, Chief of Staff, Ohio Adjutant General's Office State of Ohio Utility Radiological Safety Board s

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