W3P86-0130, NPDES Noncompliance Notification:On 860129,TSS Concentration Equaled 264 Mg/L.Caused by Buildup of High Solids on Concrete Pit Floor Where Samples Collected.Pit Cleaned

NPDES Noncompliance Notification:On 860129,TSS Concentration Equaled 264 Mg/L.Caused by Buildup of High Solids on Concrete Pit Floor Where Samples Collected.Pit Cleaned

ML20205J617
Person / Time
Site:	Waterford
Issue date:	02/14/1986
From:	Barkhurst R LOUISIANA POWER & LIGHT CO.
To:	Hartung R ENVIRONMENTAL PROTECTION AGENCY
Shared Package
ML20205J620	List: ML20205J622 W3P86-0130, NPDES Noncompliance Notification:On 860129,TSS Concentration Equaled 264 Mg/L.Caused by Buildup of High Solids on Concrete Pit Floor Where Samples Collected.Pit Cleaned
References
W3P86-0130, W3P86-130, NUDOCS 8602260135
Download: ML20205J617 (3)

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4 I e P. O. BOX 60340 LOUISIANA / 17 BAR NEWNNE STREET ORLEANS, LOUISlANA 70160 e (504) 595-3100 POWE A & LIGHT NSNhrsN February 14, 1986 W3P86-0130 3A-25.01.02 A4.10 QA Mr. Roger C. Hartung, Chief Enforcement Branch, 6W-E U. S. Environmental Protection Agency Region VI Interfirst Two Building 1201 Elm Street Dallas, Texas 75270

SUBJECT:

Waterford Steam Electric Station - Unit Number 3 NPDES Permit Number LA0007374

Dear Mr. Hartung:

As required by Part I.C.2 of the subject permit as administratively modified by your letter of September 12, 1983, Discharge Monitoring Reports (DMR's) for January 1986 are enclosed. Copies of this letter and the DMR's are also being submitted to the Office of Water Resources of the Louisiana Department of Environmental Quality.

Please note that although I have signed each DMR, I am making the following certification which appears in 40 CFR 122.22(d) (published at 48 FR 39619 on September 1, 1983) in lieu of that printed on the DMR (EPA Form 3320-1 I

(Rev. 10-79)):

I certify under penalty of law that this document and all j attachments were prepared under (my) direction or l 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 anel 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 l knowing violations.

l l

8602260135 860214 PDR ADOCK 05000382

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s PDR I/

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Mr. Roger C. Hartung W3P86-0130 Page 2.

Should you have any questions or comments, please contact Ms. Chadi Groome of our Nuclear Licensing Office at (504) 595-2846.

Yours very truly, i

ah urs Plant Manager-Nuclear RPB/CDG/sub Attachment cc (w/ Attachments): J.. Givens - LA DEQ R. D Martin - Region IV TfE Sw__~Isi.gh.6ml-NRR NS40674SEG -

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A. ________._.___.-._______.____________.____________________._____________._______._._____._.___.__.______.

r-e MONTHLY NONCOMPLIANCE DISCUSSION Outfall 003: TSS Concentration = 264 mg/l on January 29, 1986 Upon becoming aware of this noncompliance, the Service Building oil / water separator, which discharges through this outfall, was opened for cleaning. When opened, the separator appeared clean and operating properly, and the oil and grease concentration in this and other recent samples supports this. The high solids concentration in this sample is attributed to build-up on the floor of the concrete pit from which samples are collected.

There is very little flow thorugh this area and very little depth of liquid from which to draw a sample. It is thought that the solids may have reached a level which interfered with sample collection. It is also thought that while the TSS concentration of the sample indicated a noncompliance, except-for possibly a brief period immediately after sample collection, the actual continuous discharge to the environment was within effluent limitations, and that the solids on the bottom were stirred up during sample collection. The pit was cleaned to alleviate this problem. The sample collected on February 5, 1986 had a TSS concentration of 7mg/1, verifying that the outfall had returned to compliance by that time.

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