ML17223A883

NPDES Noncompliance Notification:On 900616,main Condenser Chlorinated Twice for 220 Minutes Exceeding Permit Limit. Procedure Modified to Allow Only Chemistry Personnel to Alter or Move Signs Indicating Order of Chlorination

ML17223A883
Person / Time
Site:	Saint Lucie
Issue date:	08/10/1990
From:	Sager D FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
L-90-292, NUDOCS 9008230243
Download: ML17223A883 (6)

Text

ACCELERATED DIS RIBUTION DEMONST ATION SYSTEM ey REGULATORY INFORMATION DIS RIBUTION SYSTEM (RIDS)

ACCESSION NBR:9008230243 DOC.DATE: 90/08/10 NOTARIZED: NO DOCKET FACIL:50-389 St. Lucie Plant, Unit 2, Flo ida Power 6 Light Co. 05000389 AUTH. NAME AUTHOR AFFILIATXON SAGER,D.A. Florida Power 6 Light Co.

RECIP.NAME RECXPIENT AFFILIATXON Document Control Branch (Document Control Desk)

SUBJECT:

NPDES noncompliance notification:,on 900616,main condenser chlorinated twice for 220 minutes exceeding permit limit.

DISTRIBUTION CODE: IE23D COPIES RECEIVED:jLTR TXTLE: Environmental Event Report (per Tech Specs) g ENCL 1 SIZE:

NOTES RECIPIENT COPXES RECIPIENT COPXES ID CODE/NAME LTTR ENCL D CODE/NAME LTTR ENCL PD2-2 LA 3 3 PD -2 PD 1 1 NORRIS,J 1 1 INTERNAL: ACRS 5 5 AEOD/DSP/TPAB 1 1 AEOD/PTB 1 1 NRR/DREP/PEPB9D 1 1 NRR/PMAS I 1 1 OGQ/HDS2 1 1 1 1 RG 2 1 1 RGN2/DRSS/EPRPB 1 1 EXTERNAL: LPDR 1 1 NRC PDR 1 1 NSIC 1 1 NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE iVASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM P I-37 (EXT. 20079) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED: LTTR 231 ENCL 21

P.O. Box14000, Juno Beach, FL 33408-0420 AVG I 0 l990 L-90-292 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 Gentlemen:

Re: St. Lucie Unit 2 Docket 50-389 Environmental Protection Plan Report National Pollutant Discharge Elimination S stem NPDES Re ortable Event In accordance with Section 3.2.1 of the St. Lucie Unit 1 Environmental Protection Plan, 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.

Should you have any questions, please contact us.

Very truly yours,

'h. 4. J-~.~

D. A. Sager er Vice President St. Lucie Plant DAS.JMP.kw Attachments cc: Stewart D. Ebneter, Regional Administrator, Region II, USNRC Senior Resident Inspector, USNRC, St. Luci'e Plant DAS/PSL 8227 9008230 2~3 PDR 5'00ei0 an FPL Group company S AOocy 050 zE~

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On Saturday, June 16, 1990, the St. Lucie Unit 2 main condenser was chlorinated twice for a total of 220 minutes. The first chlorination was conducted from 8:00 A.M. to 9:50 A.M., and the second from 5:50 P.M. to 7:40 P.M. This represents an exceedence of the NPDES permit limit of 110 minutes per day per unit of chlorination time. Unit 1, which is also typically chlorinated for 110 minutes each day, was not chlorinated on June 16.

The week prior to the incident, chlorination of Unit 2 was being conducted on the day shift and Unit 1 on the evening shift. On June 13, 1990, the signs on the chlorination control panel (which indicate which unit is to be chlorinated and on which shift) were reversed so Unit 1 effluent could be sampled for NPDES permit compliance on the morning of June 15. Sometime, probably on June 16, 1990, the signs were again switched by operations personnel causing some confusion and resulting in Unit 2 being chlorinated on the day shift and again on the evening shift, even though the signs and logs indicated that Unit 1 should have been chlorinated on the evening shift.

The procedure for chlorination has now been modified to only allow Chemistry (Laboratory) personnel to alter or move the signs which indicate the order. of chlorination. FPL expects that this countermeasure willprevent a recurrence of this event.

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