HL-4816, Application for Amend to Licenses DPR-57 & NPF-5,minimizing Thermal Stratification Events

Application for Amend to Licenses DPR-57 & NPF-5,minimizing Thermal Stratification Events

ML20082V373
Person / Time
Site:	Hatch
Issue date:	05/04/1995
From:	Beckham J GEORGIA POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20082V378	List: HL-4816, Application for Amend to Licenses DPR-57 & NPF-5,minimizing Thermal Stratification Events ML20082V379
References
HL-4816, NUDOCS 9505090221
Download: ML20082V373 (2)

Text

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, ti s Georgia Power Company '

. , ' , . 40 invernes.s Center Parkway .

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Post Office Box 1295 - .!'

r -  ?, e Brmingham. Alabama 35201

< Telephone 205 877-7279

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t J. T. seckhsm. Jr. GeorgiaPbwer~

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* "';,@' - "**' ,,- rn n a May 4, 1995 l

Docket Nos. 50-321 HL-4816  ;

50-366 j ,

I _ U. S. Nuclear Regulatery Commission ATTN: Document Control Desk Washington, D. C. 20555 Edwin I. Hatch Nuclear Plant ,

Thermal Stratification  !

Technical Specifications Revision Reauest in ITS Format .

Gentlemen-By letter dataxi October 13,1994, Georgia Power Company (GPC) submitted a Technical Specifications revision request regarding changes to minimize thermal stratification events.

The letter specified that pages in the Improved Technical Specifications (ITS) format would be submitted prior to ITS implementation. The format changes are enclosed.

The October submittal proposed two changes: 1) lower the anticipated transient withc st scram - recirculation pump trip (ATWS-RPT) low water level trip setpoint, and 2) provide an alternate method for determining the temperature differential between the bottom head drain and the reactor steam dome. The alternate method of determining the temperature differential allows restart of the recirculation pumps when direct measurement of the temperature differential is not available.

The ATWS-RPT low level trip change is not revised, accordingly, thejustification for the I proposed change and the 10 CFR 50.92 evaluation included in the October submittal are  !

still valid.  !

The alternate method of determining the above referenced temperature differential is information that is typically contained in the ITS Bases rather than in the Specifications. -!

Therefore, GPC has decided not to revise ITS SR 3.4.9.3. Instead, the alternate method  !

will be described in Bases section B 3.4.9. These Bases pages are included in this submittal for yourinformation. l Enclosure 1 contains the insertion instructions for the revised Technical Specifications I

pages in ITS format. Following the enclosure are the revised Technical Specifications pages (utilizing Amendments 195 and 135 as the basis) and the corresponding marked up i

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9505090221 950504 PDR ADOCK 05000321 i

1GeorgiaPowerI  !

I U. S. Nuclear Regulatory Commission Page Two May 4, 1995  ;

i pages. Enclosure 2 contains Bases pages in ITS format, along with the corresponding l' marked up pages. The Bases changes for the ATWS-RPT level setpoint will be made concurrent with the Technical Specifications change. .

t To allow time for procedure revisions and orderly incorporation into copies of the Technical Specifications, GPC requests the proposed amendments, once approved by the NRC, be issued with an immediate effective date and implementation no later than 60 days aAerissuance ,

Should you have any questions in this regard, please contact this office. ,

Sincerely, .

. T. Beckham, Jr. I i

OCV/eb  :

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Enclosures:

1. Page Change Instructions  ;

2. Bases Changes ,

i cc: Georgia Power Company Mr. H. L. Sumner, Jr., Nuclear Plant General Manager NORMS U. S. Nuclear Regulatorv Commission. Washington. D. C.

Mr. K. Jabbour, Licensing Project Manager - Hatch U. S. Nuclear Regulatory Commission. Region H Mr. S. D. Ebneter, Regional Administrator  ;

Mr. B. L. Holbrook, Senior Resident Inspector - Hatch 1

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HL-4816 i l

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