RBG-27822, NPDES Noncompliance Notification:On 880504,analysis of Sample Indicated Exceeded Oil & Grease Concentration. Screening Analysis Will Continue Until Util Investigation Identifies Cause & Appropriate Corrective Measures

NPDES Noncompliance Notification:On 880504,analysis of Sample Indicated Exceeded Oil & Grease Concentration. Screening Analysis Will Continue Until Util Investigation Identifies Cause & Appropriate Corrective Measures

ML20154D404
Person / Time
Site:	River Bend
Issue date:	05/09/1988
From:	Deddens J GULF STATES UTILITIES CO.
To:	Oneill M LOUISIANA, STATE OF
References
RBG-27822, NUDOCS 8805190177
Download: ML20154D404 (2)

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GULF STATES UTILITIES COMPANY POSY OFFICE BOX 220 St F R ANC6SytLLE. LOUT $ TAN A 70775 R6 E4 BEND STAT:CN ARE A CODE $04 635 6094 346 8661 l

May 9, 1988 RBG- 27822 File Nos. Gl.11.2 l

Ms. Maureen O'Neill, Assistant Secretary Office of Water Resources Department of Environmental Quality Post Office Box 44091, Capitol Station Baton Rouge, LA 70804-4091

Dear Ms. O'Neill:

l l

Water Discharge Permit No. 0409 NPDES Permit No. LA0042731 l River Bend Station - Unit 1 l On the afternoon of May 4. 1988, analysis of a sample from Outfall 002, l collected on April 30, 1988, indicaced an Oil and Grease (0&G) concentration l of 26 mg/1, which exceeded the permitted maximum 0&G of 20 mg/1. The Outfall l 002 sample was from a 1,760-gallon batch release of low volume waste.

The excursion resulted in the discharge of an estime.ted 0.4 pounds of oil and grease to the dississippi River. The relatively small amount of material, which was discharged via Outfall 001 as a previously monitored effluent, was determined to have had no measurable impact on the receiving stream.

A similar excursion was noted on November 17, 1987, and was reported by letter dated November 20, 1987. Extensive investigations of that occurrence never resulted in conclusive identification of the wax-like material extracted by the 0&G analysis, or of its pcssible point (s) of origin. Preliminary indications are that the same unidentified material was responsible for the present excursion. At the times of collection, the visual appearance of these samples was normal and there was no indication of the presence of oil or grease. ,

Gulf States Utilities Company is continuing its investigation of the possible causes of the intermittent problem. Until GSU has identified the cause and appropriate corrective measures to prevent recurrence, a screening analysis of each batch of this type of low volume waste will be performed prior to release.

8805190177 880509 /

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i Ms. O'Neill Page 2 May 9, 1988 I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information submitted, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations.

Sincerely, James C. Deddens ,

Senior Vice President River Bend Nuclear Group JCD/JEB/ JVC/ ch cc: Mr. Myron Knudson, Director Water Management Division (6W)

U.S. Environmental Protection Agency, Region VI ,

Allied Bank Tower 1 1445 Ross Avenue l Dallas, TX 75202-2733 .

1 Capitol Regional Office Watet Pollution Control Division 11720 Airline Highway Baton Rouge, LA 70817-1720 U.S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555 U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive Suite 1000 i Arlington, TX 76011 l 1

NRC Resident Inspector Post Office Box 1051 St. Francisville, LA 70775 ,

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