ML17223A169

NPDES Monitoring Rept for Apr 1989. W/890607 Ltr

ML17223A169
Person / Time
Site:	Saint Lucie
Issue date:	04/30/1989
From:	Barrons J, Woody C FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
L-89-203, NUDOCS 8906130167
Download: ML17223A169 (4)

Text

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ACCESSION NBR:8906130167 DOC.DATE: 89/04/30 NOTARIZED: NO DOCKET FACIL:50-335 St. Lucie Plant, Unit 1, Florida Power & Light Co. 05000335 50-389 St. Lucie Plant., Unit 2, Florida Power & Light Co. 05000389 AUTH. NAME AUTHOR AFFILIATION BARRONS,J.H. Florida Power & Light Co.

WOODY,C.O. Florida Power & Light Co.

RECIP.NAME RECIPIENT AFFILIATION

SUBJECT:

"NPDES Monitoring Rept for Apr 1989.<< W/890607 ltr.

DISTRIBUTION CODE: IE23D COPIES RECEIVED:LTR ENCL SIZE:

TITLE: Environmental Event Report (per Tech Specs)

NOTES RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD2-2 LA 4 4 PD2-2 PD 1 1 NORRIS,J 1 1 INTERNAL: ACRS 5 5 AEOD/DS P/TPAB 1 1 AEOD/PTB 1 1 NRR/DEST/ADE 8H 1 1 NRR/DREP/EPB 10 1 1 NRR/DREP/RPB 10 1 1 NRR/PMAS/ILRB12 1 1 NUDE STRACT 1 '1 RGN2 'ILE OGC/HDS2 01 1

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P.O. Box 14000, Juno Beach, FL 33408-0420 FRL JUNE 7 1989 L-89-203 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D. C. 20555 Gentlemen:

Re: St. Lucie Units 1 and 2 .

Docket Nos. 50-335 and 50-389 Environmental Protection Plan Report National Pollutant Dischar e Elimination S stem NPDES Re ortable Event In accordance with Section 3.2.1. of the St. Lucie Units 1 and 2 Environmental Protection Plans, attached is a copy of the Discharge Monitoring Report (DMR) required by the St. Lucie Plant NPDES Permit with respect to a reportable event. Additionally, a description of the event is provided.

Very truly yours, C. O. Woo Acting S or Vice President Nuclear COW/MSD/gp Attachments cc: Stewart D. Ebneter, Regional Administrator, Region Senior Resident Inspector, USNRC, St. Lucie Plant II, USNRC 3A i 67 8+0<'-"0 ePO(~

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                                                                ~ re ~nireant panahlies tor submilling false information. including COMMENT AND EXPLANATIONOF ANYVIOLATION                                                                                                          the possb,hhty ol tine and imprh onment for knovnng violations.

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DESCRIPTION OF THE EVENT On April 27, 1989, between 12:45 and 2:45 p.m., during a chlorination on Unit 2, the 0.2 ppm average limit for free available oxidation (FAO) was exceeded at the condenser outlet. Multigrab samples for that period averaged 0.24 ppm FAO. This exceedance was due to Plant start-up where only two of the four circulating water pumps were operating, therefore reducing dilution flow. Total residual oxidants (TRO) measured by a continuous monitor at the discharge canal terminus remained less than 0.01 ppm during this period. At the terminus, Unit 2 flow is combined with flow from four circulation water pumps'on Unit 1. To date, when three or four circulating water pumps were in operation, average FAO has never exceeded 0.2 ppm. In the future, sodium hypochlorite injection will be throttled should outlet FAO begin to exceed 0.2 ppm.}}