ML17222A616

NPDES Noncompliance Notification:On 881021,10,000 Gallons of Ph 10.4 Water Released Into Intake Canal.Caused by Pipe Break in Valve Pit.Plant Work Order Issued to Repair Pipe

ML17222A616
Person / Time
Site:	Saint Lucie
Issue date:	11/14/1988
From:	Conway W FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
L-88-528, NUDOCS 8812200362
Download: ML17222A616 (4)

Text

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ACCESSION NBR:8812200362 DOC.DATE: 88/lo/31 NOTARIZED: NO DOCKET FACIL:50'-335 St. Lucie Plant, Unit 1, Florida Power,a Light Co. 05000335 50-389 St. Lucie Plant, Unit 2, Florida Power 6 Light Co. 05000389 AUTH. NAME AUTHOR AFFILIATION CONWAYiW.F. Florida Power a Light Co.

RECIP.NAME RECIPIENT AFFILIATION

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SUBJECT:

"NPDES Discharge Monitoring Rept for Jan-Oct 1988." W/881214 ltr.

DISTRIBUTION CODE: IE23D COPIES RECEIVED:LTR TITLE: Environmental Event Report (per Tech Specs)

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nEcEMBER < ~ ~968 L-88-528 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-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, W. F. Conw y Senior Vice President Nuclear WFC/MSD/cm Attachments cc: Malcolm L. Ernst, Acting Regional Administrator, Region II, USNRC Senior Resident Inspector, USNRC, St. Lucie Plant an FPL Group company

Descri tion'of the Event On 10/21/88, at approximately ll:00 a.m., the St. Lucie Plant Neutralization Basin was neutralized to a pH of 10.4 prior to dfscharge to the storm drain system. This system normally drains to the west'percolation ponds. During the discharge, a pipe broke in a valve pit near the plant's intake canal.

Water overflowed the pit and flowed down an embankment to the intake canal before the operator was able to shut the pump off. An estimated 10,000 gallons of pH 10.4 water was released into the intake canal. Areas upstream and downstream in the canal were sampled ftanedfately followfng the release.

No difference in the pH of the saline intake water was detected.

A Plant Work Order was issued to repair the broken pipe. In the interim, Neutralization basin discharges are being dfscharged in accordance with the permit via NPDES Serial 002 to the intake canal.