RBG-24571, NPDES Noncompliance Notification:On 861007,failure of Sludge Return Pump Threatened to Flood Pump Well.Sludge Pumped from Well to Ground.Approx 3,000 Gallons Reached Storm Drain Leading to Outfall 006

NPDES Noncompliance Notification:On 861007,failure of Sludge Return Pump Threatened to Flood Pump Well.Sludge Pumped from Well to Ground.Approx 3,000 Gallons Reached Storm Drain Leading to Outfall 006

ML20211C441
Person / Time
Site:	River Bend
Issue date:	10/14/1986
From:	Deddens J GULF STATES UTILITIES CO.
To:	Givens J LOUISIANA, STATE OF
References
RBG-24571, NUDOCS 8610210371
Download: ML20211C441 (2)

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?n GULF STATES UTILITIES river BEND STATION POST OFFICE BOX 220 ' ST FRANCISVILLE. LOUISIANA 70775 6

ARE A CODE 504 635 6094 346 8651 October 14, 1986 RBG- 24571 File No. G1.11.2 Mr. J. Dale Givens, Assistant Secretary Office of Water Resources Department of Environmental Quality P.O. Box 44091, Capitol Station Baton Rouge, Louisiana 70804 p

Dear Sir:

3 Water Discharge Permit No. WPO409 i NPDES Permit No. LA0042731 i This- letter is a written follow-up to the verbal notification, l made by telephone on October 7, 1986, of an unauthorized i discharge of diluted clarifier sludge at River Bend Station.

On the morning of October 7, 1986, failure of a sludge return pump threatened to flood the pump well and diluted sludge was-pumped from the well to the ground. During the period between '

6:00 a.m. and 8:00 a.m. it is estimated that less than 3,000 gallons of material reached the storm water drainage leading to Outfall 006. Samples collected at Outfall 006 at 9:00 a.m. did not show any marked increase in Total Suspended Solids and the pH was within permitted limits.

The material discharged was diluted sludge from the makeup water clarifiers which provide primary clarification of Mississippi River water for use as cooling water. In the clarifiers the only chemical treatment is the addition of the polyelectrolyte.

Diluted sludge is normally discharged back to the Mississippi-River. It is not expected that the small amount of material would have adversely impacted the receiving water, Grants Bayou.

Gulf States Utilities ~ Company is evaluating possible measures to prevent a recurrence .of this discharge.

I certify under penalty of law that this document and all

, attachments were prepared under the 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 i system, or those persons directly responsible for gathering the information,. the information submitted is to the best of my knowledge and belief, true, accurate, and complete. I am aware DOCK hoho 58 C'M & """

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2- October 14, 1986 that there are significant penalties for submitting false information including the possibility of fine or imprisonment for knowing violations.

Sincerely, J. C. Deddens Vice President River Bend Nuclear Group JCD/JEB/ ERG / /je cc: Mr. Myron O. Knudson (6W), Director Water Management Division U.S. Environmental Protection Agency, Region VI InterFirst Two Building, 1201 Elm Street Dallas, TX 75270 Capitol Regional Office Water Pollution Control Division 11720 Airline Highway Baton Rouge, LA 70817 Mr. Robert Bernero, Director Division of Licensing Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Mr. Robert D. Martin, Administrator Region IV, U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 1000 Arlington,-TX 76011 m