ML20245B650

Responds to NRC Generic Ltr 89-06 Re Implmentation Status of Spds.New SPDS Sys Will Be Fully Implemented by 890630

ML20245B650
Person / Time
Site:	Fort Saint Vrain
Issue date:	06/13/1989
From:	Crawford A PUBLIC SERVICE CO. OF COLORADO
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
RTR-NUREG-0737, RTR-NUREG-737 GL-89-06, GL-89-6, P-89222, TAC-73661, NUDOCS 8906230268
Download: ML20245B650 (4)

Text

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Public Service Publ*ic Serv i*ce' c. , ., cei ,. .

P.O. Box B40 Denver CO 80201 0840 June 13, 1989 Fort St. Vrain A. Clegg Crawford

. Unit No. 1 P-89222 Uu'c*ie$'Ner" dons U..S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555 Docket No. 50-267

SUBJECT:

NRC Generic Letter No. 89-06

REFERENCES:

See Enclosure Gentlemen:

Public Service Company of Colorado (PSC) submitted in Reference 1, the proposed and planned changes to current PSC commitments as a result of the company decision to discontinue nuclear operation at the Fort St.-Vrain Nuclear Generating Station (FSV) on or before June 30, 1990.

As part of the NUREG-0737, Supplement 1 initiatives, PSC committed to continue implementation of the Emergency Operating Procedure (EOP) rewrite effort (with a reduced scope) and recommended cancellation of the Safety Parameter Display System (SPDS) commitment.

TheNuclearRegulatoryCommission(NRC)acceptedthesetwocommitment change recommendations in Reference 2. This NRC letter also indicated that PSC should formally request that the August 2, 1985 Confirmatory Order be modified to indicate the cancellation of the SPDS. The request for the Confirmatory Order Modification will be submitted by June 16, 1989.

By letter dated April 12, 1989 (Reference 3), the NRC issued Generic Letter No. 89-06 regarding the implementation status of the SPDS.

The Generic Letter required a response to either certify that the SPDS fully meets NUREG-0737, or certify that the SPDS will be modified -to meet the NUREG or provide the reasons and compensatory actions taken if no certification could be made. The reasons for PSC not completing implementation of the SPDS in accordance with the requirements of NUREG-0737, Supplement 1, are stated in Reference 1.

As requested by the NRC in Reference 2, all currently operable computer systems used by the operators will be maintained for the balance of plant life.

8906230268 090613 8 PDR ADOCK 05000267 P PDC IO Rw._ _m____

P-89222 2 of 3 H June 13, 1989 The planned implementation of the new E0Ps was originally scheduled

.with the full integration and operation of the SPDS. Due to the SPDS commitment , change, PSC still plans to utilize the completed portions of.the existing SPDS design and software features . which have been integrated into Jthe new E0Ps. The, system will still be referred to as "SPDS". While the new E0Ps. reference certain SPDS display information, PSC acknowledges that the SPDS system at FSV does not meet the full requirements of NUREG-0737 and, therefore, no credit is taken for its conformance to the NUREG.

The.SPDS. system is designed utilizing the existing FSV plant computer systems, data acquisitions systems and man-machine interfaces. Some enhancements in ..the way of additional computer programs' for performing calculations have been made. .The existing SPDS design features have ' undergone Verification and' Validation tests and/or independent reviews. The new SPDS system, as described above, will be fully implemented'by June.30, 1989.

PSC believes that the above referenced letters and discussion adequately' responds to the' requirements of Generic Letter No. 89-06.

Should you have any questions on this matter, please contact Mr. M.

H. Holmes at(303) 480-6960.

Very truly yours,

' d h A. Clegg Crawford Vice President Nuclear Operations q ACC/JCS:emm Enclosure  ;

cc: Regional Administrator, Region IV Attention: Mr. T. F. Westerman, Chief

? Projects Section B Mr. R. E. Farrell Senior Resident Inspector Fort St. Vrain-w _ _ _ __

Enclosure P-89222 3 of 3 June 13, 1989

References:

1) PSC letter, Williams to Document Control Desk, dated January 20,1989(P-89026)

2) NRC letter. Heitner to Milliams dated April-19, 1989-(G-89137) 3)NRCGenericLetterNo.89-06 dated April 12,~1989(G-89161) l I

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... . gm UNITED STATES OF AMERICA

'"', NUCLEAR REGULATORY COMMISSION i

iJ 1' In the Matter

~ Public Service Company of. Colorado ) Docket No. 50-267-Fort St. Vrain Unit No. 1 )

I AFFIDAVIT l

~

t .. A'. -Clegg1 Crawford, being .-first -duly. sworn, deposes and says:

That he-is Vice President,: Nuclear Operations, of Public Service-Company of Colorado, the Licensee herein, that ne has read the information. presented;in the attached letter and knows. the contents

.thereof, and that the statements and matters' set forth.therein are

' true and correct to the best of his knowledge, information 'and belief.

A. Clegg Crawford "

Vice President.

Nuclear Operations STATE OF COLORAD0 ) l

)

COUNTY OF DENVER ) k j

, Subscribe and sworn to before me, a Notary Public on this 16th day of June , 1989 10s}nes hw1o NotaryPublYc l

My commission expires January 6 , 19, 9J i

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