ML20207L709

Notification of 990317 Meeting with SCE in Rockville, Maryland to Discuss Topics Resulting from NRC Staff Review & Confirmatory Analysis of Licensee Request to Remove Hydrogen Control Sys from SONGS Licensing Basis.Meeting Agenda Encl

ML20207L709
Person / Time
Site:	San Onofre
Issue date:	03/02/1999
From:	Clifford J NRC (Affiliation Not Assigned)
To:	Bateman W NRC (Affiliation Not Assigned)
References
NUDOCS 9903180241
Download: ML20207L709 (4)

Text

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March 2, 1999

. MEMORANDUM TO: Willi:m H. Batem:n, Director l Project Direct: rata IV-2 i

, Division of Licensing Project Management FROM: James W. Clifford, Senior Project Manager Project Directorate IV-2 (Original Signed By)

Division of Licensing Project Management

SUBJECT:

FORTHCOMING MEETING WITH SOUTHERN CALIFORNIA EDISON (SCE) COMPANY REGARDING SAN ONOFRE NUCLEAR ,

GENERATING STATION DATE & TIME: March 17,1999 1:00 p.m. - 4:00 p.m.

LOCATION: U. S. Nuclear Regulatory Commission One White Flint North 11555 Rockville Pike, Room O-584 Rockville, Maryland 20852 PURPOSE: To discuss topics resulting from the NRC staff's review and confirmatory analysis of the licensee's request to remove hydrogen control systems from the San Onofre Nuclear Generating Station (SONGS) licensing basis. The meeting agenda and discussion topics is attached.

PARTICIPANTS *: NRQ SQE J. Clifford M. Cunningham O. Thompson G. Holahan T. King J. Rainsbury M. Snodderly A. Malliakos T. Hook M. Gray K. Parczewski C. Berlinger J. O'Brien l R. Barrett F. Hasselberg l Docket Nos. 50-361 j and 50-362  !

Attachment:

Agenda and Discussion Topics I cc: See next page ,

[ l CONTACT: James W. Clifford (301)415-1352

• Meetings between NRC technical staff and applicants or licensees are open for interested  ;

members of the public, petitioners, intervenors, or other parties to attend as observers pursuant l to " Commission Policy Statement on Staff Meetings Open to the Public," 59 Federal Reaister l 48340,9/20/94.

DOCUMENT NAME: SO317.WPD OFC PDIV-2/PM PDIV-2/PlVI PDIV-2/LA

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NAME Mhay JClib EN l DATE 3/1 /99 3/I-/99 3/ 3./99 '

OFFICIAL RECORD COPY

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361 PDR h

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i cc:  !

Mr. R. W. Krieger, Vice President Resident inspector / San Onofre NPS

. Southem California Edison Company clo U.S. Nuclear Regulatory Commission l San Onofre Nuclear Generating Station Post Office Box 4329 P. O. Box 128 San Clemente, California 92674 i San Clemente, Califomia 92674-0128 '

Mayor Chairman, Board of Supervisors City of San Clemente County of San Diego 100 Avenida Presidio 1600 Pacific Highway, Room 335 San Clemente, Califomia 92672 i San Diego, Califomia 92101 i Mr. Dwight E. Nunn, Vice President Alan R. Watts, Esq. Southern Califomia Edison Company  ;

Woodruff, Sprodlin & Smart San Onofre Nuclear Generating Station 701 S. Parker St. No. 7000 P.O. Box 128 Orange, California 92668-4702 San Clemente, Califomia 92674-0128 '

Mr. Sherwin Harris Mr. Harold B. Ray Resource Project Manager Executive Vice President i Public Utilities Department Southem Califomia Edison Company City of Riverside San Onofre Nuclear Generating Station 3900 Main Street P.O. Box 128 Riverside, California 92522 San Clemente, Califomia 92674-0128  ;

Regional Administrator, Region IV U.S. Nuclear Regulatory Commission Harris Tower & Pavilion 611 Ryan Plaza Drive, Suite 400 Arlington, Texas 76011-8064 Mr. Michael Olson San Onofre Liaison San Diego Gas & Electric Company P.O. Box 1831 San Diego, Califomia 92112-4150 Mr.' Steve Hsu Radiologic Health Branch '

State Department of Health Services Post Office Box 942732 Sacramento, Califomia 94234 l

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• Distribution of Notice for March 17.1999 Meetina with Southern Califomia Edison i Hard Coov )

Docket File PUBLIC l i

PDIV-2 Reading l JClifford ' )

OGC l ACRS Receptionist (TWFN)

E-Mail l Scollins/RZimmerman l BSheron (BWS) l JZwolinski(JAZ) l SBlack (SCB)  !

WBateman (WHB) j EPeyton (ESP) i OPA (e-mail to OPA) j GHolahan (GMH) )

MSnodderly (MRS1)

MGray (MXG3)

CBerlinger (CHB)

RBarrett (RJB3)

MCunningham TKing (TLK)

AMalliakos (ACM1)

KParczewski(KIP)

JO'Brien (JBO)

FHasselberg (FWH)

DLange, OEDO KBrockman, RIV (KEB)

LSmith, RIV BHenderson, RIV PMNS (Meeting Announcement Coordinator) l

f i 1

\ .. o i Attachment AGENDA AND DISCUSSION TOPICS FOR MARCH 17.1999 MEETING WITH SOUTHERN CALIFORNIA EDISON COMPANY (SCE)

Agenda *

Introductions

Topics for Discussion * - NRC staff Discussion - SCE/NRC staff Conclusion Toolcs for Discussion:'

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1. With regard to the SONGS analysis supporting that the flammability limit would not be exceeded for a design basis loss-of-coolant accident (LOCA), provide the basis for a radiolytic yield of .3, considering guidance of Parczewski and Benaroya. Also discuss the basis for not assuming five times the amount of hydrogen calculated for 10 CFR 50.46(b)(3).

2. Discuss how the long-term buildup of hydrogen due to radio!ysis during a postulated degraded core accident would be mar, aged (for example, in the severe accident management guidelines).

3. Discuss how core damage assessment procedures, emergency plan response, and  !

severe accident management guidelines will be supported without continuous hydrogen monitoring.

4. Discuss how severe accident management guidelines would be supported without the capability of a controlled purge (e.g., venting the containment).

5. Discuss why the SONGS Individual Plant Examination (IFE) is considered to adequately address the risk due to hydrogen combustion if the worst case sequence only considers a deflagration based on 75% metal-water reactor retaine d invessel.

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