ML19254F433

Forwards Summary of Investigation of Facility Chlorination Practices.Chlorination Practices Comply W/Discharge Limitations for Chlorine Residuals

ML19254F433
Person / Time
Site:	Sequoyah
Issue date:	11/02/1979
From:	Elashry M TENNESSEE VALLEY AUTHORITY
To:	Kaplan C ENVIRONMENTAL PROTECTION AGENCY
References
NUDOCS 7911090423
Download: ML19254F433 (2)

Text

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TENNESSEE VALLEY AUTHORITY Nonnte. TEMMaassa 37828 NOVEMBER 2 1979 Mr. Charles H. Kaplan Coordinator, Thermal Analysis Unit h Enforcement Division Environmental P.T tection Agency 345 Courtland Stuet, NE.

I Atlanta, Georgia 30308 l

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Dear Mr. Kaplan:

Item 2 of the enclosure to the February 15, 1979, letter to you from

H. G. Moore, Jr. concerning the proposed chlorine limitations, stated i that TVA was investigating alternatives to our proposed chlorination j practices to meet the NPDES permit discharge limitations for chlorine residuals.

l k Th investigation has been completed, and TVA has determined that tne chlorination practices as described in the enclosure to this letter l

should assure compliance with the discharge limitations for chlorine residual.

i If you have any questions concerning this report or need additional

' information, please let ce know.

f Sincerely, I

i i Mohamed T. El-Ashry, Ph.D.

I ,

Director of Environmental Quality cc: Mr. Elmo Lunn, Director Mr. Paul Frey

Division of Water Quality Control Environmental Protection Agency Tenneesee Department of Public Health College Station Road l 621 Cordell Hull Building Athens, Georgia 30605 Nashville, Tennessee 37219 l Mr. Don Sells Chief

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Mr. Jack McCormick, Regional Engineer Environmental Projects j Division of Water Qunlity Control Branch No. 2 Tennessee Department of Public Health U.S. Nuclear Regulatory Connaission l

. 2501 Milne Street Washington, D.C. 20555 Chattanooga, Tennessee 37406 l

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7911090 An Equal Opportumty Employer ,

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• Attachment .

S,U: DIARY OF CitLORINATION PRACTICES AT SEOUOYAll NUCf. EAR PLANT Condenser Circulatine Water System (CCW)

No chlorination.

CCW Cooling Towers No chlorination.

Essential Raw Cooling Water System (ERCW)

This systes will be chlorinated continuously during the entire clam spawning period, usually from late May or early June to late October.

When the auxiliary ERCW cooling towers are tested, chlorination will be discontinued and verification of no chlorine residual will be accomplished before the test begins. Also, chlorination will be dis-continued if necessary during closed mode operation of the cooling towers in order to be in compliance with the current NPDES permit.

Raw Cooling Water (RCW) System and Raw Service Water (RSW) System The RCW and RSW systems will be chlorinated continuously for two 3-week periods per year, once at the beginning of the clam spawning season and then again at the end. Continuous treatment during the entire clam spawning period may be required if periodic treatment does not result in ef f ective control. Chlorination of the RCW and RSW systems will be discontinued if necessary-during closed mode operation of the cooling towers in order to be in compliance with the current NPDES permit.

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