ML20009H262

Informs of 810703 Facility Oil Spill.On 810703,station Transformer Ruptured & Caught Fire.Unknown Quantity of Oil Washed to Lake Anna Via Discharge Storm Sewer.Cleanup Continued Until 810705.No Environ Impact Cited

ML20009H262
Person / Time
Site:	North Anna
Issue date:	07/08/1981
From:	Brehmer M VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	Kregloe W VIRGINIA, COMMONWEALTH OF
References
NUDOCS 8108070118
Download: ML20009H262 (2)

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hlP VIRGINIA ELECTRIC AND POWER COMPANY July S, 1531 s ) '

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CERTIFIED Mall RETURN RECEIPT RE@ ESTED

!;r. W. L. Areej ! ce Follution Centrol Engineer halley Regional Office State Water Control Ucard l i t. :or d naia stract F. ,. .w. L ,

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inis is to inform you cf an oil spill taat occurred on July 3, 1 J1 at our :iortn Anna Power Station.

On the morning of July 3,1%1, a station transformer serving Unit : af tue worta ,snna Power Station ruptureu snu cau9 .t t fire. As a result of tne station's fire fignting efforts an unknown quantity of insulating oil from the transformer was washed to Lake Anna by way of a storm sewer which aischarges near the station's cooling water intake structure. Sased upon testing of tnis particular station transformer prior to t'ais incident, we nad ascertaineu that the transformer oil containeu less than .>.0 pm of polycnlorinated oiphenyls (PCbs).

, ta t i en oe rsor.ne l immediately responded u this spill . A log bacm was ceployeo arounu the intake area to contain toe oil. However, because tne ecoling water intakes withdraw watcr free. tha lake, tne oil l contained in ciais area was ultimately pum;;ed througn tiie station and into tx statien s cooling saccr discnary canal.

t a buoin constructed of hay baiis ucs placed across the tr.cutr. of tne disc.1arge caril as an initial absorbent material. This boca was ceployed oy station-personnel to contain the oil in the ciscnarge canal and to prevent oil from entering t he. lagoons of the waste neat treatment faciiity.

On the af ternoon of July 3,1901, an oil spill contractor, l Browning-Ferris industries (t,FI) of Chester, Virginia, was erpioyed to I fully clean up and remove all the oil resultlan from tnis spill. i3FI deployed a second absorbent and contali, ment. W m across tne mouth of the discharge canal. Additional absorbent material ano a vacuum skimmer were i used to remove oil from the canal, 13FI and station personnel continued g(,>7 l

the cleanup operation until the morning of July 5,1341. 5 A very small amount of oil did enter the first lagoon of the /O waste heat treatment facility. However, the nature and small quantity of this oil prevented cleanup and it quickly dissipated by natural means.

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Mr. W. L. Kr gloe 2 The North A.ina Power Station has a certified Spill Prevention Control and Countermeasure Plan (expiration date - 9/8/81) which is currently undergoing review for considerations unrelated to this oil spill.

Because of the swift and effective action of station personnel and our oil spill contractor in containing and reroving the oil, we have not observed nor do we anticipate any damaga to fish, wildlife, vegetation, or puolic or private property as a result of this occurrence.

If you have any questions or desire further information, please let us know.

Very truly yours,

/C / - # L Morris L. Brehmer,/ Ph.D. 5 Executive Manager Environmentai Services cc: U. S. Coast Guard iluclear Regulatory Commission i

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