ML20213G853

Forwards Wastewater Rept for Oct 1986. Normal Operation of Waste Treatment Facility & Settling Basins Commenced on 861106

ML20213G853
Person / Time
Site:	Davis Besse
Issue date:	11/10/1986
From:	Storz L TOLEDO EDISON CO.
To:	Gephart A OHIO, STATE OF
Shared Package
ML20213G856	List: ML20213G853 ML20213G868
References
GA86-0618, GA86-618, NUDOCS 8611180371
Download: ML20213G853 (2)

Text

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. t TOLEDO EDISON t

EDISON PLAZA d 30o MA08 SON AVENUE i TOLEDO, OHIO 43652 RR 2 P-8-86-10 E 2.40.1.1.3 GA86-0618L November 11, 1986 Technical Records Section Ohio Environmental Protection Agency P.O. Box 1049 Columbus, Ohio 43216-1049 Gentlemen:

Attached is a copy of the October, 1986 Wastewater Report for Davis-Besse Nuclear Power Station, Unit No. 1, Permit Number 2IB00011*DD.

Immediately following the PCB incident on August 21, 1986, the settling basins were isolated from the station discharge (Outfall

1. 001). Sampling at the station discharge continued until September 17, 1986, to verify that no PCB's were discharged to Lake Erie.

Throughout September, 1986, the settling basins were isolated and there was no discharge to Outfall #001. Therefore, no PCB analyses were reported.

Starting October 3, 1986, the north settling basin was dewatered, as recommended by the Northwest District Office of the Ohio EPA, through a bed of activated carbon. From filtration efficiency tests performed, the adsorption of PCB onto the carbon ensured that at no time during the dewatering process was the PCB concentration at Outfall #001 greater than 1 part per trillion. Sampling of discharge from the south settling basin was performed in accordance with permit requirements with results from the analysis at Outfall

1. 602 being recorded on the enclosed monthly reports.

Normal operation of the Water Treatment Facility and the settling basins commenced on November 6, 1986. It will take approximately three weeks to fill the north settling basin and subsequently discharge to Outfall #001. During this period, effluent from the Water Treatment Facility will be sampled to ensure there is no further PCB discharge from the affected sumps.

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I 8611180371 861110 I PDR ADOCK 05000346 R PDR a

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. Tcchnical Rec:rds S:ction November 11, 1986 Page 2 Once discharge is established from the north settling basin, ad-ditional sampling will be done at Outfall #001 for some period of time to ensure that the discharge meets Lake Erie Water Quality Standards.

Results of our sampling program will be reported in the cover letter of the November, 1986. Monthly Wastewater Report.

Yours truly,

/  :

L. F. Storz Plant Manager, Davis-Besse M[./

A. F{ Gephart Davis-Besse Nuclear Power Station 3-84-58 (419) 249-5000, Extension 7589 Class III Operator, Wastewater Treatment LFS/PJM/jjh Attachments (2 copies)

I cc: P. Byron, NRC Resident Inspector A. Gephart J. Scott-Wasilk J. F. Stolz, NRC j J. Sullivan bec: D. B. Amerine D. W. Briden R. K. Flood R. J. Scott 1

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