ML19344A754

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Notifies of Change in Procedure to Measure Flow Rates from Svc Water Pump House Drain Sys Per ALAB-578.Periodic Test Will Record Total Flow Rate of Six Drains.Acceptance Criteria to Include 8.5 Gpm Ref Value
ML19344A754
Person / Time
Site: North Anna  Dominion icon.png
Issue date: 08/15/1980
From: Sylvia B
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To: Clark R, Harold Denton
Office of Nuclear Reactor Regulation
References
716, NUDOCS 8008220139
Download: ML19344A754 (1)


Text

. VINGINIA EI.ECTHIC ann PowuH ConrANY nicaxonn,vrmorn A unas:

August 15, 1980 Mr. Harald R. Denton, Director Serial No. 716 Office of Nuc1 car Reactor Regulation N0/RMT:jmj Attn:

Mr. Robert A. Clark, Chief Docket Nos. 50-338 Operating Reactors No. 3 50-339 Division of Licensing License Nos. NPF-4 U.S. Nuclear Regulatory Commission NPF-7 Washington, D.C.

20555

Dear Mr. Denton:

The North Anna Power Station Procedure to measure the flow rates from the service water pump house drain system (1-PT-75.6.2) has been changed. This letter serves as notification pursuant to the Atomic Safety and Licensing Appeal Board Decision, ALAB-578.

The change to the periodic test was to total the flow of all six drains and recc-d this total flow rate. The acceptance criteria was also changed to include a reference value of 8.5 gpm as the Technical Specification limit of three times the averaged annual flow rate. If the flow rate ever exceeds 6.0 gpm, an engineering evaluation will be performed.

Very truly yours, 6;p B. R. Sylvia

(

Manager - Nuclear Operations and Maintenance cc:

Mr. James P. O'Reilly, Director Gffice of Inspection and Enforcement

u. B. Joe Youngblood, Chief Licensing Branch 1 Division of Licensing 8008220/3f g

.