ML20077E063

Advises That on 910415,small Amount of Diesel Fuel Contamination Found While Drilling Cathodic Protection Well. Groundwater Monitoring Well Will Be Installed Where Well Drilled for Cathodic Protection Well

ML20077E063
Person / Time
Site:	Catawba, 05000141
Issue date:	04/18/1991
From:	Nietering A DUKE POWER CO.
To:	Berenbrok M SOUTH CAROLINA, STATE OF
References
NUDOCS 9106060063
Download: ML20077E063 (3)

Text

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OUKE POWER April 18, 1991 S.C. Department of Health and Environmental Control (DHEC)

Ground-Water Protection Division 2600 Bull Street Columbia, SC 29201 ATTENTION: Mark Berenbrok

SUBJECT:

Catawba Nuclear Station Underground Storage Tanks File: CN-707.20

Dear Mr. Berenbrok:

At Catawba Nuclear Station on April 15, 1991, a small amount of diesel fuel contamination was found while drilling a cathodic protection well. You have requested the details of the corrective action already taken and future planned corrective action. This information is attached.

If you have any questions about this, please contact me at ,

(704) 373-2758.

J. S. Carter, Technical System Manager Nuclear Environmental Compliance

& A

-Alan Nietering Nuclear Production Engineer

\ARN Attachments 9106060063 910418 PDR ADOCK O*3000413 /

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s Attachment 1 Corrective Action Taken

1. 4/15/91 - Well drillers noticed diesel fuel odor in the fluid at the bottom of a cathodic protection well they had drilled.

They notify station compliance personnel.

2. 4/15/91 -

Station compliance personnel investigated the situation, looked at environmentcl regulations on this topic, and notified DHEC.

3. 4/15/91 - Plant personnel started monitoring diesel fuel level in the Unit 1 emergency diesel generator fuel tanks every three hours. These tanks are located near the newly drilled well.

4. 4/15/91 - Groundwater monitoring wells near the newly drilled well were monitored for diesel fuel. No diesel fuel detected in these wells via a snif f test. These wells are monitored on a weekly basis and have not indicated any groundwater contamination.

5. 4/16/91 - Samples from groundwater monitoring wells near the newly drilled well were taken and visually inspected. No diesel fuel is detected in these wells.

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I Attachment 2 Corrective Action Planned the 4 die.s1 This should

1. An Underground Tank Tester will integrity testfuel tanks loc be performed on 4/19/91 or shortly thereafter. h well This 2.

A groundwater monitoring the well cathodic will be installed well. where protectionto more thoroughly te was drilled for groundwater monitoring well will help usinvestigate the soil cont l

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