ML17297A812

Responds to NRC 810619 Request for Info Re Meteorological Sys.Towers a & B Will Contain Instrumentation Described in Table 2.3-26 of Fsar.Sys Will Be Operational by Fuel Load. Location of Tower B Shown on Encl Drawing

ML17297A812
Person / Time
Site:	Palo Verde
Issue date:	09/08/1981
From:	Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	Tedesco R Office of Nuclear Reactor Regulation
References
ANPP-18875-JMA, NUDOCS 8109150624
Download: ML17297A812 (10)

Text

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" Responds to NRC 810619 request" for-info r e meteor ologfcal sys.Towers'.

4 B wfll contain fnstr umentatfon descry'ibad fn T'able 2",3 26'f FSAR,Sys will be. operational by fuel load;.

Locatfon of Tower B sh'own on encl. drawfng DISTRIBUT'ION CODE)!

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IRatlKIIIIV IZBEIHWIIClotl CKOIBIPuHW P.o. BOX 21666 PHOENIX, ARIZONA85036 September 8, 1981 ANPP-18875-JMA/KWG Mr. R. L. Tedesco U.

S. Nuclear Regulatory Commission Washington, D. C.

20555

Subject:

Palo Verde Nuclear Generating Station (PVNGS) Units 1, 2 and 3

Docket Nos. 50-528/52'9/530 File:

81-056-026 G.1.10 1 iso,/

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E P 1 4 1981 ~::f

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Dear Mr. Tedesco:

The following information on the PVNGS meteorological system is provided in response to questions transmitted to us by 6/19/81 telecon with your staff.

The meteorological instrumentation provided at PVNGS is listed in our response to question 2A.2 in the Palo Verde FSAR.

The manufacturer, model and specifications are provided in Table 2.3-26 of the FSAR.

Both Tower A and B will contain these identical instruments, as described in question 2A.2.

The calibration of these instruments will be in compliance with R.G. 1.33 and these procedures are per those of R.G. 1.23 for safety related activities.

The system will be in operation by fuel load.

Attached is a drawing indicating the approximate location of Tower B.

A marked-up FSAR page 2A-2 indicating a slight change in the wording, which will be incorporated in a future amendment is also attached.

If you have any questions, please contact me.

Very truly u

E. E. Van Brunt, Jr.

APS Vice President Nuclear Projects ANPP Project Director EEVBJr/KWG/bj Attachments cc:

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I, Edwin E. Van Brunt, Jr., represent that I am Vice President Nuclear Projects of Arizona Public Service Company, that the foregoing document has been signed by me on behalf of Arizona Public Service Company with full authority so to do, 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.

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Lh PVNGS FSAR APPENDIX 2A As independent, redundant and validated signals are used, the system can ~re a non-availability of 0.01.

@~nieve Below is a summary eau'le of the sensors used in each inde-pendent meteorological system to monitor the environmental parameters, and the common data processing available.

Sensor Location 200'and Speed and Wind Direction Sensor 35'and Speed and Wind Direction Sensor 200'c 35'spirated Temperature Sensor 35'spirated Dewpoint Sensor Rainfall Monitor Located at Ground Level Tower System' Provided Provided Provided Provided Provided Tower System B

Provided Provided Provided Not Provided Not Provided Digital

& Analog Process-ing Provided 35'mbient

'd ~1 200'-35'T Provided Provided The environmental parameters monitored by each independent tower system permit highly accurate and reliable meteor-ological data necessary to cover all data for the Pasquill stability classes and transport projections needed for the PVNGS site.

The auxiliary analog information for each tower system is provided on analog recorders located at the meteorological station in'the respective tower system equipment trailers.

Analog information for each tower system is converted to digital data and transmitted by two serial links to the plant site where the data is reduced to fifteen-minute and hourly average meteorological parameters, and where all effluent and environmental parameters are recorded and available for time Amendment 5

2A-2 August 1981

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