ML20066J806

NPDES Noncompliance Notification:On 901110-11,hydrazine Released Into Catawba River.Caused by Release from Auxiliary Electric Boiler Into Floor Drain.Measures to Correct Problem & Minimize Recurrence Identified

ML20066J806
Person / Time
Site:	Mcguire, McGuire
Issue date:	01/30/1991
From:	Carter J DUKE POWER CO.
To:	Myers J NORTH CAROLINA, STATE OF
References
NUDOCS 9102050108
Download: ML20066J806 (3)

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DUKEPOWER January 30, 1991 North Carolina Emergency Response Commission Joseph F. Myers, Chairman 116 West Jones Street Raleigh, NC 27603-1335 Charlotte-Mecklenburg Emergency Management Office Wayne Broome 125 South Davidson Street Charlotte, NC 28202

SUBJECT:

McGuire Nuclear Station Superfund Amendments and Reauthorization Act (SARA)

Follow-up Release Notification File: MC-707.26 Dear Sirst Pursuant tn 40 CFR Part 355 (Emergency Planning and Notification),

Duke Power Company hereby provides written f ollow-up emergency notice of a reportable SARA release. From November 10 to 11,1990, hydrazine was released into the Catawba River in concentrations no greater than 225 parts per billion (ppb). It is estimated that a total of one pound of hydrazine was released in the 24-hour period.

Hydrazine is considered to be an Extremely Hazardous Substance under SARA with a reportable quantity of one pound. Verbal notification was made to your of fices on November 15, 1990, as well as to the National Response Center, the North Carolina Department of Environment, Health, and Natural Resources Regional Office in Mooresville, the Nortn Carolina Division of Environmental Management, and the North Carolina Division of Emergency Management. An additional notification was made to the Nuclear Regulatory Commission resident inspector as is required by 10CFR Part 50.72(b)(2)(vi).

The release occurred when the station's auxiliary electric boiler released water containing hydrazine into a floor drain which discharged into the station's wastewater collection basin (WWCB).

Measures have been identified to correct the problem and to minimize the possibility of a recurrence. Due to the low concentrations of hydrazine that were released, no impact to the receiving waters resulted from the event. In addition, there were no anticipated acute or chronic health risks associated with this release.

9102050108 910130 PDR ADOCK 05000369

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e If you have any questions concerning this notification, please contact Mike Ruhe at (704) 373-2374 or Dave Phillips at (704) 875-4633.

< Very truly yours,

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John S. Carter echnical System Manager Nuclear Environmental Compliatace j MR/1356 xc NRC Regional Administrator, Region II NRC Office of Nuclear Reactor Regulat.lon NRC Document. Control Desk /

NRC Resident Inspector

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,. l bc T.L. McConnell G.D. Gilbert D.W. Phillips R.P. Michael R.O. Sharpe J.S. Carter M.S. Tuckman M.E. Hollis H.B. Tucker Staff (route)

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