ML20085B248

Forwards Revised Approval Ltr Which Replaces 950315 Approval Ltr from Sc Dept of Health & Environ Control,Approving Use of Stated Chemicals Provided Discharge Level for Each Parameter Less than No Observed Effect Concentration Level

ML20085B248
Person / Time
Site:	Catawba
Issue date:	06/08/1995
From:	Estridge J DUKE POWER CO.
To:	Davis W, Harris J, Jackson A DUKE POWER CO.
References
NUDOCS 9506140395
Download: ML20085B248 (2)

Text

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6 June 8,1995 j

i A.P. Jackson - CNO3CH I J.T. Harris - CN01EM W.J. Davis - CN01CH G.W. Sain - EC07D G.L Ward - EC07D S.D. Davenport - EC07D S.W. Rodgers - CNO3CH J.S. Velte-MG03A3 C.T. Peed - CN01EM

Subject:

Catawba Nuclear Station -NPDES Permit No. SC0004278 DHEC Revision on Approval for Use of Chemicals File: CN-702.13 Attached please find the revised approval letter which replaces the March 15,1995 approval letter from SCDHEC for the use of the four maintenance chemicals.

Should you have any questions concerning this letter please give me a call at 875-5965.

Sincerel ,

[

John Estridge, Engineer Environmental Division, Water Protection jte/444 cc: y NRC Document Distribution List M.A. Lascara - MF03A5 9506140395 950608 PDR ADOCK 05000413 P PDR f\

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, South Carolina ,. _

Soard: John H. Burriss, Chairman Richard E.Jabbour, DOS Sandra J. Molander. Secretary William M. Hull.Jr MD Roger Leaks,Jr.

Department of Health and Environmental Control 2600 Bun Street. Columbia, Sc 29201 Promohng Health, Protecting the Environment WWWS May 26,1995 tilN 2'1995' O FILE Mr. John S. Carter, Technical System Manager Environmental Division Duke Power Company O COPY 13339 IIagers Ferry Road Huntersville, N.C. 28078-7929 O ROUTE Re: Approval for Use of Chemicals Duke Power Co./ Catawba Nuclear Station NPDES Permit No. SC0004278 York County

Dear Mr. Carter:

Our Office has received your May 10,1995 letter requesting a modification to the March 15, 1995 approval letter for the use of additional treatment chemicals at the Duke Power Company / Catawba Nuclear Station in York County. After reviewing your request, we approve the use of the following maintenance chemicals provided the discharge level for each parameter is less than the no observed effect concentration (NOEC) level for that parameter:

1) Carbohydrazide (hydrazine substitute)

2) NALCO DYNACOOL 1389 (cooling water dispersant)

3) dibromo-3-nitrilopropionamide or DBNPA (microorganism control)

4) 3-MPA or 3-methoxypropylamine (ethanolamine replacement)

Also, as stated in your May 10,1995 letter additional toxicity testing using Ceriodaphnia dubia shall be performed if the NOEC limit for the treatment chemicals is approached. This approval replaces our March 15,1995 approval letter.

If you should have any questions, please call me at (803)734-4784.

Sincerely, Y

J% 711.

Timothy M. Eleazer Environmental Engineer Associate Industrial and Agricultural Wastewater Division TME/ CAT 2 cc: Al Williams, Catawba EQC l O m ,c % ,