RBG-25181, NPDES Noncompliance Notification:On 861229,overflow of Temporary Sludge Holding Area Discovered.Caused by Diversion of Stream Due to Malfunctioning Pumps in Sludge Return Sys. Use of Temporary Holding Area Discontinued

NPDES Noncompliance Notification:On 861229,overflow of Temporary Sludge Holding Area Discovered.Caused by Diversion of Stream Due to Malfunctioning Pumps in Sludge Return Sys. Use of Temporary Holding Area Discontinued

ML20207N128
Person / Time
Site:	River Bend
Issue date:	01/05/1987
From:	Deddens J GULF STATES UTILITIES CO.
To:	Givens J LOUISIANA, STATE OF
References
RBG-25181, NUDOCS 8701130484
Download: ML20207N128 (2)

Text

o n

awf 9 8E NO ST ATiON POST OFFICE Box 220

_a ST FRANCtSwtLE LOuS ANA 70775 Adf A CODE 504 635 6094 346 6651 January 5, 19 RBG- 25181 File No. Gl.11.2 Mr. J. Dale Givens, Assistant Secretary Office of Water Resources Department of Environmental Quality P.O. Box 44091, Capitol Station Baton Rouge, LA 70804

Dear Mr. Givens:

Water Discharge Permit No. WPO409 NPDES Permit No. LA0042731 This letter is a written follow-up to the verbal notification, made by telephone on December 30, 1986, of an unauthorized discharge of Mississippi River water to River Bend Station Outfall 006.

At 2:45 p.m. on December 29, 1986, an overflow of a temporary sludge holding area was discovered. Pumping to the holding area was stopped at 3:15 p.m. and the discharge terminated. Investigation showed that at 10:45 a.m., because of malfunctioning pumps in the sludge return system, the stream had been diverted to the temporary holding area.

During the ensuing period, the capacity of the holding area was exceeded and the overflow followed surface drainage to Outfall 006.

The duration of the discharge was less than 4-1/2 hours and the calculated maximum volume was less than 34,000 gallons. Analysis of the discharge indicated a pH of 7.1 S.U., a Total Suspended Solids of 42.8 mg/1, and an Oil and Grease of 1 mg/1. The discharge was also sampled for Total Organic Carbon and the analysis will be completed and included in the December 1986, Discharge Monitoring Report for Outfall 006. To prevent a recurrence of the discharge, use of the temporary holding area has been discontinued.

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 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 that there are significant penalties for submitting false information including the possibility of fine and imprisonment for knowing violations.

Sjncerely, 8701130484 B70105 PDR ADOCK 05000458 S PDR C. Deddens ,

Senior Vice President / fg

' /,'

.~ $, River Bend Nuclear Group \

JCD/ B/ /JWC/JVC/je

v cc

W.H. Odell T.F. Plunkett J.V. Conner B.L. St. Cyr Nuclear Document Control Mr. Myron 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 U.S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555 Mr. Robert D. Martin, Regional Administrator Region IV, U.S. NRC 611 Ryan Plaza Drive, Suite 1000 Arlington, TX 76011

__