ML20029A212

Forwards Revised Page 18 to Toxicity Rept on Diffuser Element Contained in Recently Submitted Discharge Monitoring Rept

ML20029A212
Person / Time
Site:	Sequoyah
Issue date:	01/30/1991
From:	Schmierbach M TENNESSEE VALLEY AUTHORITY
To:	Crownover S TENNESSEE, STATE OF
References
NUDOCS 9102050066
Download: ML20029A212 (3)

Text

. _ _ ,

TENNESSEE VALLEY AUTHORITY SPB 2P 1 Knoxville,. Tennessee 37302-1499

'JAN 301991 1

4 Mr. -Sims R. Crownover, Manager of Enforcement and Compliance Division of Water Pollution Control Tennessee Department of Health and Environment TERRA Building 150 Ninth Avenue, North Nashville, lennessee 37219-5404

Dear Mr. Crownover:

REVISION TO THE SEQUOYAH NUCLEAR PLANT (SON) T0XICITY REPORT - NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM PERMIT NUMBER TN0026450 On January 25, we submitted the SQN Discharge Monitoring Report including the most recent toxicity report on the diffuser effluent. After-the submission, we discovered errors on page 18 of the toxicity reports which, we would like to correct.

Please replace page 18 of.-the original submission with the enclosed. I apologize for any confusion that might have been created.

If you have any questions regarding this revision, please contact Abraham H. Loudermilk Jr. at (615) 632-6656 in Knoxville.

Sincerely, h /

[.'M.Pau'chmierbach, Manager Environmental Quality Enclosure cc (Enclosure):

- Mr. Douglas K. Lankf ord, Chief South Carolina Tennessee Unit Facilities Performance Branch Water Management Division U. S. Environmental Protection Agency, Region IV 345 Courtland Street, NE Atlanta, Georgia 30365 Continued on page 2 l' \

I

- 9102050066 910130 gDR ADOCK 0500 7- An Eaual Opportunity Employer

- - - . . . . ~ . - . - - . . - . - . - , _ - . , . -

~

JAN 301991 Sims R. Crownover cc: Mr. Phillip L. Stewart, Manager Tennessee Department of Health and Environment Chattanooga Field Office Division of Water Pollution Control 2501 Milne Street Chattanooga, Tennessee 37406 \

U. L._Nuche.tJfgulatory .Commis_s n Attn: Document Control Desk Washington, D.C. 30323 B. A. Wilson, Assistant Director for Inspection Programs '

TVA Projects Division U. S. Nuclear Regulatory Commission Region II,1101 Marietta Street, NW Suite 2900 Atlanta, Georgia 30323 l

l l

l 1

I h

7.0. CONCLUSION Tests conducted on the SQN diffuser effluent (DSN101) from l December 5-12, 1990, did not show toxicity (survival, or l growth or reproduction effects) to fathead minnows, j Ceriodaphnia, or algae. r I

8.0 REFERENCES

)

1. Letter, R. M. Dinclair to Ralph H. Brooks, June 30, 1988,

-Re NPDES Permit No..TN0024650-

2. . Letter, M. Paul Schmierbach to Ralph M. Sinclair, July- 22,- -

1988, Ret Selection of Control Water for Toxicity Testing l

-3. Field Operations Eqtural Resource Engineering Proce(u_r_eg. t Manual. Vol. 1, Division of Natural Resource Operations, Tennessee Valley Authority.

4. W. B. Horning and.C. 1. Weber (eds.), Ehprt-+erm Methods for Estimating the Chronic Toxicity of Effly,ents and j Receivinz Waters to Fegghwater Organisms, Second Edition, EPA /600/4-89/001 (March 1989).- '

S. ECKENFELDER INC., Good Laboratory Practices for Aquatic Toxicology, June 1990 Nashville, TW.-

ABD-0009C 1:

l

. . . . -