ML18139A325

Discusses 800522 Meeting W/Nrc Re Test Results of Containment Spray Sys Mods.Data Curves Re post-LOCA Sump Ph Vs Time & Proposed Tech Spec Changes Forwarded 800605,per NRC Request.Final Rept Will Be Sent 800618

ML18139A325
Person / Time
Site:	Surry
Issue date:	06/11/1980
From:	Sylvia B VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	Harold Denton, Eisenhut D Office of Nuclear Reactor Regulation
References
NUDOCS 8006170699
Download: ML18139A325 (2)

Text

• V:rRGINIA ELECT:a.ic ~D Po~E~ COMPANY_>

RICHMOND, V.xao:nuA 2_9261. ' '.

June 11, 1980 Mr. Harold R. Denton, Director.

• Office of Nuclear Reactor Regulation ATTN:

Mr. Darrel G. Eisenhut,

• Acting Director,* Division* *of*

Operating Reactors

• U.S. Nuclear Regulatory Commission Washington, D~ C.

20555 DearMr. Denton

.Serial No. 501.

NO/HEC:ms Docket Nos *. 5~280 5().;.28i License No. DPR~32 DPR-37

• A meeting was held May 22, 1980 with members of your staff for the discussion of the results of our testing program for the Containment Spray Systems.

modifications at Surry Unit No.

2.

During this discussf6n, we presented preliminary spray pH versus

• time data for all postulated scenarios and a preliminary report* of the Containment Spray Drawdown Test.

These documents were left with_ your staff for their review.

Also discussed was the ultimate sump pH values* with a value o.f 8. 2 expected for the worst case* scenario.

Per your staff's request, we transmitted on June 5, 1980 data curve_s concern-ing post LOCA sump pH versus time and proposed

• changes to

• our Technical Specification~.

Each of these were in a preliminary form.. It _should be noted that changes to Technical Specification, Section 3.8 are a result of our NPSH

. Modification as well as Containment Spray.

It is expected that

• finalized documents including the final Containment Spray Drawdown Test Report will be sent June 18, 1980 for you:t review and_ approval.

If you have any questions or comments regarding these.transmittals, please contact us.

cc: Mr. James R. O'Reilly, Director.

Office of Inspection and Enforcement Region II 8 0081 '10 '-'t't. P f>

• A list of attendees is attached.

Very truly yours,

fti.~t£J B. R *. ~via Manager-Nuclear Operations and Maintenance

/Joo/

5 1/1

J,,j,

• NRC D. Neighbors W *. Pasadag

.D. Shum

. VEPCO E. Smith J. Eastwood D. Christian H. Carroll STONE & WEBSTER D. Piccione

• H. Carlberg

0. Faibes IL Miller

, *LIST OF ATTENDEES VEPCO/NRC MEETING MAY 22, 1980