ML20245H481

NPDES Noncompliance Notification:On 890626,11 Gallons of Houghto-Safe 620 Hydraulic Fluid Spilled in Subpile Room of Unit During Preparation for CRD Removal Work.Major Portion of Spill Collected in Dry Well Sumps & Floor Flushed

ML20245H481
Person / Time
Site:	Peach Bottom
Issue date:	08/07/1989
From:	Willsey W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	Corriveau E PENNSYLVANIA, COMMONWEALTH OF
References
NUDOCS 8908170122
Download: ML20245H481 (2)

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PHILADELPHIA ELECTRIC COMPANY 23O1 M ARKET STREET P.O. BOX 8699 PHILADELPHIA A, PA.191o1 1215)841 4000 August 7, 1989 Mr. Edward Corriveau l Chief, Permits and Grants Section i

Bureau of Water Quality Management Department of Environmental Resources One Ararte Blvd.

Harrisburgh, PA 17110 Re: Peach Bottom Generating Station NPDES Permit PA 0009733

Dear Mr. Corriveau:

Pursuant to your discussion with David Mobraaten concerning a contained eleven gallon spill of Houghto-Safe 620 hydraulic fluid (primarily ethylene glycol), we are requesting permission to discharge the spilled material through our on-site treatment systems.

On June 26, 1989, there was a spill of 11 gallons of Houghto-Safe 620 hydraulic fluid to the floor of the unit three sub pile room during preparation for control rod drive removal work. An unknown quantity of this product was initially released to the dry well sump which was in automatic pumping mode at the time of the release. Based on TOC analyses, it is suspected that very little of the product was released to the dry well sump which was pumped to the floor drain collector tank. The volume of the collector tank was pumped to the floor drain surge tank as a precautionary measure in isolating that portion of the spill. The drywell sumps were subsequently isolated and put into manual operation so that the remaining major portion of the spill was collected in the dry well sumps.

To clean up the spill, the sub pile room floor was flushed to the dry well sumps. These sumps were pumped out to 47 drums which contain varying concentrations of Haughto-Safe 620 and radioactivity.

We propose to batch process the 47 drums (2585 gallons) of water through our Epicore system which gpgf3 8908170122 890007 \

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1 consists of a series of filters and charcoal beds. The-effluent from this treatment ~ system would then be-

' discharged to'the'"B" laundry drain tank which is part of' the normal rad waste treatment system and checked against

-pertinent NRC requirements prior to discharge.;

The NPDES discharge point;from radwaste treatment is designated as 701 which is located in"the discharge _ canal.

The release from the laundry drain tank is a batch process-of 1000 gallons at a time at a rate.of 100 gpm which is mixed in.the discharge' canal,'with a minimum dilution flow from the circulating water system of 200,000 gpm, (one circulating water-pump), and discharged to the. river.via NPDES discharge point 001.;

The contents of'the floor drain surge tank (30,000 gallons)'will be processed through'our normal ~radwaste treatment system (pre coat filter and deminerializer) using present methods'and procedures.

There should-be no impact on the river from the discharge of this' material using the methods described above. . We wish to have a two week approval period in which to discharge the aforementioned waste water. Your prompt review and favorable response to this matter would be greatly appreciated.

A material safty data sheet is attached for your-information which provided a list of chemicals in=Houghto-Safe 620.

If there are any questions, please call David Mobraaten at (215) 841-5679.

Sincerel ,yours,.

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W. B. Willsey ;

Director Environmental Affairs Attachment DWM:ttj cc: NRC Director, ONRR Washington, DC w/ attachments NRC Administrator, OIE King of Prussia, PA w/ attachments

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