05000267/LER-1980-038, Forwards LER 80-038/03L-0

Forwards LER 80-038/03L-0

ML19331B880
Person / Time
Site:	Fort Saint Vrain
Issue date:	08/08/1980
From:	Warembourg D PUBLIC SERVICE CO. OF COLORADO
To:	Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19331B881	List: 05000267/LER-1980-038, Forwards LER 80-038/03L-0 05000267/LER-1980-038-03, /03L-0:on 800709,during Regeneration of Batch of Condensate Polisher Resin,Waste Water Was Discharged to Liquid Effluent Sys.Caused by D-12,D-13 Regeneration Valves Being in Wrong Position.Valve Positions Manually Corrected
References
P-80253, NUDOCS 8008130473
Download: ML19331B880 (5)

LER-1980-038, Forwards LER 80-038/03L-0

Event date:
Report date:
2671980038R00 - NRC Website

text

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. a_ J PLATTEVILLE, COLOR ADO 80651 August 8, 1980 Fort St. Vrain Unit No.1 P-80253 Mr. Karl V. Seyfrit, Director Nuclear Regulatory Commission Region IV Office of Inspection and Enforcement 611 Ryan Plaza Drive Suite 1000 Arlington, Texas 76012 Reference: Facility Operating License No. DPR-34 Docket No. 50-267

Dear Mr. Seyfrit:

Enclosed please find a copy of Reportable Occurrence Report No. 50-267/

80-38, Final, submitted per the requirements of Technical Specification AC 7.5.2(b)2.

Also, please find enclosed one copy of the Licensee Event Report for Reportable Occurrence Report No. 50-267/80-38.

Very truly yours, oa)&J a.d /-

Don Warembourg Manager, Nuclear Production DW/cls Enclosure S

cc: Director, MIPC

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8008130473

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RIPORT DATE:

August 8, 1980 REPORTABLE OCCURRENCE 80-38 ISSUE O OCCURRENCE DATE:

July 9, 1980 Page 1 of 4 FORT ST. VRAIN NUCLEAR GENERATING STATION PUBLIC SERVICE COMPANY OF COLORADO 15805 WELD COUNTY ROAD 19 1/2 PLATIEVILLE, COLORADO 80651 REPORT NO. 50- 267/80-38/03-L-0 Final IDENTIFICATION OF OCCURRENCE:

During the regeneration of a batch of condensate polisher resin, vaste water was discharged to the plant liquid effluent system instead of the vaste neutralizing tank. This resulted in a degraded mode of LCO NR 1.1, and is reportable per Fort St. Vrain Technical Specification AC 7.5.2(b)?.

EVENT

DESCRIPTION

On July 9,1980, during the evening shif t, operations personnel were regener-ating a batch of condensate polisher resin. See Figure 1.

The valves, D-12 and D-13, which controls the discharge path of the waste water did not auto-matically line up properly and discharged the waste caustic used in the resin regeneration to the Turbine Building sump instead of the waste neutralization tank. This resulted in the waste water being discharged to the yard drain and then to the Goosequill Ditch.

Fort St. Vrain Technical Specification LCO NR 1.1 requires that the regener-ation effluent be stored in lined evaporation ponds and establishes limits for various chemicals in the effluent. The discharge of the regeneration waste water to the Goosequill Ditch was not in accordance with the Techni-cal Specification. The LCO limit for pH was exceeded as follows:

LCO NR 1.1 Limit Actual Values Time 6.0 - 9.0 9.3 1930 hours0.0223 days <br />0.536 hours <br />0.00319 weeks <br />7.34365e-4 months <br /> 9.1 2305 hours0.0267 days <br />0.64 hours <br />0.00381 weeks <br />8.770525e-4 months <br /> 8.57 0030 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> 7-10-80 Dilution by the Jay Thomas -Ditch water prevented any detrinental effect to the Farm Pond or the South Platte River.

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REPORTABLE OCCURRENCE 80-38 ISSUE O Page 2 of 3 EVENT

DESCRIPTION

(Cont'd')

l Operations personnel noted the problem of high pH in the Goosequill Ditch, checked the possible sources, and found the regeneration vaste being dis-charged to the Turbine Building sump. The discharge path selector was manu-ally changed to send all waste water to the vaste neutr311 zing tank. Cor-rective action returned the pH value to less than 9.0 within 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br />.

CAUSE

DESCRIPTION:

Cause of the inadvertent discharge of the regeneration waste water was not determined. The D-12/D-13 valves were not in the correct position; however, the instrumentation personnel checked the circuits and found no problems with the controls.

CORRECTIVE ACTION:

Immediate action consisted of manually directing regeneration waste water to the waste neutralizing tank.

Followup action was to continue the sampling until the pH values were back within acceptable limits and a Plant Trouble Report t as issued to check sys-tem operation.

No further corrective action is anticipated or required.

REPORTABLE OCCURRENCE 80-38 ISSUE O Page 3 of 4 4

Beckman Solubj dge Waste Water l

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From Regener-p 13 6 l

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n D-12 High Con-CE ductivity J

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. Turbine Waste Neutrali::ation Tank Building Sump i

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REPORTABLE OCCURR.*.".qCE 80-38 ISSUE O Page 4 of 4 J

Prepared By:

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Asa B. Reed Technical Services Supervisor Reviewed By:

he-sw MYw M.y J. W. 'Gahm

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Technical Services Supervisor Reviewed By:

Frank. M. Machie Operations Manager i

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l Approved By:

CLLsw Don Warembourg G/

Manager, Nuclear Production i

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