IR 05000528/1985032

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Provides Spray Pond Pressure Monitoring Schedule,Per Insp Repts 50-528/85-32 & 50-529/85-31.Monitoring Will Be Done on Monthly Basis for Implementation on 860228
ML17299A976
Person / Time
Site: Palo Verde  Arizona Public Service icon.png
Issue date: 01/30/1986
From: Van Brunt E
ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To: Knighton G
Office of Nuclear Reactor Regulation
References
ANPP-34867-EEVB, TAC-60904, NUDOCS 8602040136
Download: ML17299A976 (6)


Text

REGULATO INFORMATION DISTRIBUTION

'TEM (RIDS)ACCESSION NBR: 8602040136 DOC.DATE: 86/Oi/30 NOTARIZED:

NO FACIL: STN-50-528 Palo Vev de Nuclear Stationi Unit 1E Arizona Pub 1 i STN-50-529'alo Vev de Nuc leav Station>Unit 2E Av i zona Pub li AUTH.NAME AUTHOR AFFILIATION VAN BRUNTE E.E.Av i zona Nuclear Power Pv o Ject (formev lg Av izona Public Serv REC,IP.NAME RECIPIENT AFFILIATION KNIGHTONi G.M.PMR Pv'oJect Div ectorate 7 SUBJECT: Pv ovides spray pond pv essuv e monitoring scheduleI pev Insp Repts 50-528/85-32 5 60-529/85-3i.

Monitov ing vill be'one on month 1 g basi s f ov imp I ementati on on 860228.DISTRISUTION CODE: SOSID COPIES RECEIVED: LTR g ENCL G SIZE: TITLE: OR/Licensing Submittal:

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Dear Mr.Knighton:

PVNGS Technical Specification 6'.8.4.f requires the spray ponds to be monitored in accordance with station procedure 73AC-9SP01, which currently requires that pressure monitoring be performed on a weekly basis.Weekly pressure monitoring has been performed in Unit 1 for the past six months and in Unit 2 for the past two months.The results of the monitoring show that there has been no detectable decrease in system pressure over this time period.The instru-ment tolerance band for the spray nozzle discharge pressures is+0.15 psi and the normal operating band has also been+0.'15 psi.These results are substantiated in the above referenced inspection report.On the basis of these results, we believe the pressure monitoring can be performed on a monthly basis.Should the system pressure drop to the alert range (6.2 psig), the monitoring frequency would increase to weekly.The nominal design pressure is 7'psigo Based on this information, our current implementation date of reducing the frequency of the spray pond pressure monitoring from weekly to monthly is February 28, 1986.Please inform us by that date, if you have any comments.PDR~P>>~86P>~P Bhp2p 8 OCK pspppsz8 PDR pg//u ~: f'l Mr.George W.Knighton Spray Pond Pressure Monitoring Schedule ANPP-34867 Page 2 If you have any questions, please contact Mr.W.F.Quinn of my staff.Very truly yours, zmu~E 4 J%E.E.Van Brunt, Jr.Executive Vice President Project Director EEVB/WFQ/PGN/rw cc: R.P.Zimmerman E.A.Licitra A.C.Gehr I' }}