ML20082D127

Ro:On 910706,released Approximately 100 Gallons of Sodium Hypochlorite in Ground.Release Occurred When Portable Tank Overturned.Area Flushed W/Water & Neutralized Prior to Discharge Into Lake Wylie

ML20082D127
Person / Time
Site:	Catawba
Issue date:	07/16/1991
From:	Carter J DUKE POWER CO.
To:	Howell C, Mckinney S SOUTH CAROLINA, STATE OF, YORK COUNTY, SC
References
NUDOCS 9107230209
Download: ML20082D127 (1)

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• Duke lhwr Company (704p7340;j

• Nuclear Production Department P O B u l007 Charlotte, NC 282011001 DU,W POWER July 16, 1991 South Carolina Emergency Response Commission Stan M. McKinney, Chairman Division of Public Safety Programs Edgar A. Brown Building 1205 Pendleton Street Columbia, SC 29221 York County Emergency Preparedness Agency Cotton Howell 155 John 6cn Stroet P.O. Box 11706 Rock Hill, SC 29731 SUBJEC2 Catawba Nuclear Station Superfund Amendments and Reauthorization Act (SARA)

Follow-up Release Notification File CN-707.26 Pursuant to Oubchapter J of 40 CFR, Part 355 (Emergency Planning and Notification), Duke Powsr Company hereby provides written follow-up emargency notice of a reportable hazardous substance release as defined by the Comprehensive Environmental Response, Compensation, and Liabili:y Act of 19PO (CERCLA). As your offices were verbally notified on July 6, 1991, approximately 100 gallons (130 pounds) of sodium hypochlorite was released to the ground at the Catawba Nuclear Station on the afternoon of July 6, 1591. Notification of this release was also made to the National Response Center, the Nuclear Regulatory Commission as required Dy 10 CFR Peru 50.72 gb)(2)(vi), and by the Environmental Protection Plan as contained in the Technical Specification of the Operating License.

The duration of the release was approximately 10 minutes. The reportable quantity for sodium hypochlorite, as assigned by Tcble 302.4, 40 CFR Part 302, is 100 pounds. Sodium hypochlorite is not considered to be an Extremely Hazardous Substance under SARA.

The release occurred rhen a pa cable tank containing a 13% sodium hypochlorite solution overturned while being moved onsite. The spill entered a yard drain after travelling acroce the ground and collected into a yard drain secondary containment sump system. From there it was pumped into the station's Conventional Wastewater Treatment System (WC) .

The spill area was flushed with water, routed to WC, and the sodium hypochlorite neutralized within WC prior to discharge into Lake Wylie.

There are no anticipated acute or chronic health risks associated with this release. The Catawba Nuclear Station employees that responded to the spill were dressed out in appropriate protective equipment and no one was injured as a result of the spill or its cleanup.

If you have any questions concerning this notification, please contact Mike Ruhe at ( 4) 373-2374 or Robert Wylie at (803) 831-3233.

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J.S. Carter, Tec nical System Manager Nuclear Environmental Compliance xc: NRC Regional Adminisurator, Region II NRC Office of Nuclear Reactor Regulation NR .aument Control Desk pHRC rasident Inspector f

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