ML20080R413

NPDES Noncompliance Notification:On 840215,oil Spill Occurred Near Cooling Water Intake Structure.Caused by Overflow,Due to Heavy Rains,Of Tank Containing Oil Used in Fire Fighting Exercises.Cleanup Underway

ML20080R413
Person / Time
Site:	North Anna
Issue date:	02/17/1984
From:	Taylor J VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	Chewning R VIRGINIA, COMMONWEALTH OF
References
NUDOCS 8402280274
Download: ML20080R413 (2)

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VIRGINI A ELECTRIC AND POWER COMP ANY, RICHMOND, VIRGINI A 23261 February 17, 1984 CE-RTIFIED l%IL RETURi1 RECEIPT REQUESTED Mr. R. B. Chewning, P.E.

Regional Director

' Valley Regional Office State Water Control Board 116 North Main Street P. O. Box 268 Bridgewater, Virginia 22812 North Anna Power Station - Oil Spill - February 15, 1984

Dear Mr. Chewning:

This is to confirm the oil spill that occurred on February 15, 1984 at our North Anna Power Station. This spill was reported by telephone to your office and the National Response Center on the same day.

'At approximately 3:00 p.m. on February 15, 1984, station personnel discovered that oil had entered Lake Anna near the cooling water intake

-structure. The oil had entered a nearby cove via a discharge ditch.

Immediately following discovery of the spill, cleanup efforts began. A containment boom was placed around the sheen at the intake structures, and adsorbent material was used to remove oil from the lake surface. In addition, earth which was contaminated by oil was removed in the vicinity of the drainage ditch. Some of the oil was observed to have entered the screen well of the intake structure, and was entrained through the power station. This oil was contained by the floating boom permanently deployed across the cooling water discharge canal, and cleanup was also initiated in that area. Since station cleanup supplies were low, a contractor, Browning-Ferris Industries, was called in to assist in cleanup of the spill.

The source of oil was found to be a steel container or tank which contained oil used in fire fighting training exercises. Unusually heavy rains caused the tank located in the northwest laydown area to overflow. The exact quantity of oil which reached the lake is not known, as it could not be determined how much oil was in the tank at the time of overflow. In addition, some oil was caught on the ground surface and in the drainage ditch before reaching the lake.

8402280274 840217 PDR ADOCK 05000338 S PDR 1921

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ar. R. B. Chewning, P.E. 2 To prevent a recurrence of this type of overficw, the tank was emptied of the remaining oil and water. The tank will also be inspected periodically to forestall refilling and overflow. Station personnel are also trying to determine whetner there is another area this tank can be relocateo to in oroer to further rainimize the possibility of future problems of this nature.

Station biological perscnnel assisteo in the cleanup effort. These personnel did not observe any adverse environmental 1:.1 pact to fish or other aquatic biota as a result of this spill and will maintain a close surveillance of the spill area curing the next few days.

If you have any questions regarding this ..atter, please let me know.

Very truly yours,

~ ' - ,,

a u poys F, John A. Taylor, Ph.6.

Manager Water Quality SWE/yo cc: Mr. J. P. O'Reilly, USNRC, Docket tio. 50-333/50-339 -

Mr. H. R. Denton, USNRC, Occket No. 50-338/50-339 /

Mr. M. B. Shymlock, USNRC, Docket lio. 50-338/50-339 U. S. Coast Guaro

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