ML17298B564

Discusses Emergency Preparedness Dose Assessment Capability. Chemical & Radiological Analysis Computer Sys Is Primary Sys Used for post-accident Dose Assessment.Sys Expected to Be Installed & Tested by June 1985

ML17298B564
Person / Time
Site:	Palo Verde
Issue date:	12/03/1984
From:	Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	Knighton G Office of Nuclear Reactor Regulation
References
ANPP-31284-EEVB, NUDOCS 8412050479
Download: ML17298B564 (7)

Text

I REGULATORY NFORMATION DISTRIBUTION SYMM (RIDS)

ACCESSION NBR:8412050479 DOC ~ DATE: 80/12/03 NOTARIZED:

YES FACIL:STN"50-528 Palo Ver de Nuclear Stations Unit li Ar izona Publ i STN-50 S29 Palo Verde Nuclear Station~

Unit" 2r Arizona Publi STN 50-530 Palo Verde Nuclear Station~

Unit 3i Arizona Publi AUTHeNAME AUTHOR AFF ILIATION VAN BRUNTiE,ED Arizona Public Service Co ~

REC IP ~ NAME:

RECIPIENT AFFILIATION KNIGHTON g G e N, Licensing Branch 3

DOCKET ¹ OS000528 05000529 05000530

SUBJECT:

Discusses emergency preparedness dose assessment capability ~

Chemical 8 radiological analysis computer sys is primary sys used for post"accident.

dose assessments Sys expected to be installed L tested by June 1985.'ISTRIBUTION CODE:

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Arizona Public Service Company ANPP-31284-EEVB/WFg/GEC December 3,

1984 Director of Nuclear Reactor Regulation Mr. George W. Knighton, Chief Licensing Branch No.

3 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C.

20555

Subject:

Palo Verde Nuclear Generating Station (PVNGS)

Units 1, 2, and 3

Emergency Preparedness-Dose Assessment Capability Docket Nos.

STN 50-528/529/530 File:

84-056-026 G.1.01.10 84-002-493

Dear Mr. Knighton:

The PVNGS Emergency Plan, in Subsection 7.3.1.10, identifies the Chemical and Radiological Analysis Computer System (CRACS) as the primary system to be used for post accident dose assessment.

This system, however, is not expected to be functional by the dat'e of issuance of the PVNGS operating license for Unit 1.

The CRACS is expected to be installed,

tested, and capable of fulfillingthe functions indicated in Subsection 7.3.1.10 of the Emergency Plan by June 1985.

During the interim period until the CRACS is available, we will be using the dose assessment computers for post accident dose assess-ment.

The dose assessment computers are identified in Subsection 7.3.1.10 of the Emergency Plan as the first level backup if the CRACS is unavailable during licensed operation.

The dose assessment computers and other functional support systems and subsystems are able to provide the CRACS capabilities indicated in Subsection 7.3.1.10 of the Emergency Plan.

However, the CRACS when operating will provide automatic updates as inputs feed directly to CRACS from the various support subsystems;

whereas, the data entry for the dose assessment computer must be inputted manually.

The backup to the dose assess-ment computer during the interim period will be hand calculations which is identified in Subsection 7.3.1.10 of the Emergency Plan as the second level backup to the CRACS.

The dose assessment computers were used in lieu of CRACS during our September 26, 1984 Evaluated Exercise and have been reviewed and found accept-able for use in lieu of CRACS by Region V.

They will continue to provide the backup capability when CRACS becomes an operational system.

If you have any questions concerning this matter, please contact me at your earliest convenience.

84i2050479 841203 PDR ADOCK 05000528 F

PDR EEVB/GEC/mb Very truly yours, zzUa ~/hing E.

E.

Van Brunt, Jr.

APS Vice President Nuclear Production ANPP Project Director

Mr. George M. Knighton Emergency Preparedness Dose Assessment Capability ANPP-31284 Page 2

cc: E.

A. Licitra A. C. Gehr J.

B. Martin R.

P.

Zimmerman

ANPP-31284 STATE OF ARIZONA

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COUNTY OF MARICOPA)

I, Donald B. Karner, represent that I am Assistant Vice President, Nuclear Production of Arizona Public Service

Company, that the foregoing document has been signed by me on behalf of Arizona Public Service Company with full authority to do so, that I have read such document and know its

contents, and that to the best of my knowledge and belief, the statements made therein are true.

Donald B. Karner Sworn to before me this~~)

day o 1984.

l Notary Public My Commission Expires:

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