ML17310A785

Informs of Unit 2 PRM Summary Rept Closing Issue Re Operability of Elements of Radiation Monitoring Sys

ML17310A785
Person / Time
Site:	Palo Verde
Issue date:	11/01/1993
From:	Conway W ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
102-02720-WFC-R, 102-2720-WFC-R, NUDOCS 9311170228
Download: ML17310A785 (6)

Text

ACCKLERA B BOCUMENT MSY UYjf:ONSYSTEM REGUL.

ORY INFORMATION DISTRIBUT SYSTEM (RIDS)

ACCESSION,NBR:9311170228 DOC.DATE: 93/ll/Ol NOTARIZED:

NO DOCKET t FACIL,STM-50-529 Palo Verde Nuclear Station, Unit 2, Arizona Publi 05000529 AUTH.NAME AUTHOR AFFILIATION CONWAY,W.F.

Arizona Public Service Co. (formerly Arizona Nuclear Power RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Informs of Unit 2

PRM summary rept closing issue re operability of elements of RMS.

DISTRIBUTION CODE:

AOOID COPIES RECEIVED:LTR

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TITLE: OR Submittal: General Distribution D

NOTES:Standardized plant.

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RECIPIENT ID CODE/NAME PDV LA HOLIAN,B INTERNAL: ACRS NRR/DORS/OTSB NRR/DSSA/SPLB NUDOCS-ABSTRACT OGC/HDS1 EXTERNAL: NRC PDR COPIES LTTR ENCL RECIPIENT ID CODE/NAME PDV PD TRAN,L NRR/DE/EELB NRR/DRCH/HICB NRR/DSSA/SRXB OC/LFDCB RE~IL Ol NSIC COPIES LTTR ENCL D

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NOTE TO ALL"RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTETH CONTACT THE DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT. 504-2065) TO ELIMINATEYOUR NAMEFROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEEDl D

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WILLIAMF. CONWAY EXECUTIVE VICEPRESIDENT NUCLEAR Arizona Public Service Company P.O. BOX 53999

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PHOENIX. ARIZONA85072-8999 102-02720-WFC/RAB/GAM' November 1, 1993 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Station P1-37 Washington, D. C. 20555

Reference:

Letter 161-04180-WFC/JMQ, dated September 25,

1991, from W. F. Conway, Executive Vice President,

Nuclear, APS to NRC, "Process Radiation Monitor RT-204"

Subject:

Palo Verde Nuclear Generating Station (PVNGS)

Unit 2 Docket No. STN 50-529 Process Radiation Monitor Summary Report File: 93-016-545 93-056-026 In the referenced letter, Arizona Public Service Company (APS) provided a history of the Process Radiation Monitor (PRM) RT-204 with respect to the PVNGS Unit 2 License Condition to have all elements ofthe Radiation Monitoring System operable.

In that letter, APS stated that PRM RT-204 could not be made operable and would therefore be replaced.

Additionally, APS committed to test the replacement PRM in Unit 2 in accordance with Combustion Engineering Standard Safety Analysis Report (CESSAR)

Section 14.2.12.5.5, and to submit a summary report to the NRC followingthe satisfactory completion of the testing of the PRM.

A temporary compensatory monitor was put in place until the permanent replacement was functional.

During the most recent Unit 2 refueling outage, completed in August 1993, APS replaced the PRM RT-204 with a new monitor.

The new PRM, designated RE-155D, passed a

calibration test and was evaluated through power ascension after the refueling outage to verify that the monitor readings and reactor coolant system gross activity grab samples correlated.

This acceptance testing was considered to be sufficient to meet the objective of CESSAR 14.2.12.5.5 to verify proper operation of the PRM. This letter constitutes the Unit 2 PRM summary report to close this issue.

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- U.'S. Nuclear Regulatory Commission ATTN:. Document Control Desk Process Radiation Monitor Summary Report Page 2 i

Should you have any questions, please contact Richard A. Bernier at (602) 393-5882.

Sin erely, WFC/RAB/6AM/kl cc:

B. H. Faulkenberry B. E. Holian J. A. Sloan

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