ML20216F099

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Forwards Quarterly Aquatic Toxicity Monitoring Rept for Jul 1997 for Millstone Station, Discharge Serial Numbers 001A,001B,001C & 006.All Test Acceptable Except for Dsn 001A
ML20216F099
Person / Time
Site: Millstone  Dominion icon.png
Issue date: 08/29/1997
From: Scace S
NORTHEAST NUCLEAR ENERGY CO.
To:
CONNECTICUT, STATE OF
Shared Package
ML20216F102 List:
References
SES-97-GN-144, NUDOCS 9709110164
Download: ML20216F099 (1)


Text

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Nuclear Energy mu.too. suci.a, ro.er si.iion

-* Nenheut Nuclear Energy Company P.O. Bos 128

'e e'" Waterford. CT 06385-0128 (860) 447 1791 August 29,1997 ru (s60) 444 4m

' * * * "' e synem SES-97-GN-144 Dll380 Aquatic Toxicity Water Management Bureau Department of Environmental Protection 79 Elm Street Hartford, CT 06106-5127 Millstone Station NPDES Permit No. CT0003263 Ouarterly Aouatic Toxicity Monitoring Recort - July 1997 Northeast Nuclear Energy Company (NNECO) is submitting the Quarterly Aquatic Toxicity Monitoring Report - July,1997 for NNECO's Millstone Nuclear Power Station Discharge Serial Numbers 001 A,001B,001C and 006. All tests conducted this quarter were acceptable with one exception. - The Mysid test conducted on July 1, for DSN 001 A had two control replicates with less than 90% survival. The test was repeated on July 16 with the control replicates again having

+ less than 90% survival. Ms. Traci lott of the Connecticut DEP was informed of this situation on -

August 28,1997 and it was agreed that the test will be repeated as soon as possible in September.

All remaining tests at DSN 001 A,001B,001C and 006 had either LC50 or NOAEL>100% and were therefore acceptable with Mysidopsis bahia and/or Cyprinodon vareigatus and thus showed no toxicity.

If there are any questions related to these results, please call Mr. Paul Jacobson, Manager.

Environmental Services - Nuclear at (860) 447-1791 ext.2335.

- Very truly yours,

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NORTHEAST NUCLEAR ENERGY COMPANY

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S. E. Scace 7 Director - Nuclear Engineering Programs cc: NRC NRC ResMent Inspector Mr. James Grier @${lfIk!

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