ML17326A043

NPDES Noncompliance Notification:On 990707,unnatural Turbidity Was Observed at Outfall 002.Caused by Bentonite Clay Being Fed Into Discharge Vaults During Molluscicide Treatment.Clay Feed Was Terminated on 990708

ML17326A043
Person / Time
Site:	Cook
Issue date:	07/09/1999
From:	Carlson J INDIANA MICHIGAN POWER CO.
To:	Morley F MICHIGAN, STATE OF
References
NUDOCS 9907190078
Download: ML17326A043 (4)

Text

REGULA RY INFORMATION DISTRIBUTI SYSTEM (RIDS)

A'CCESSiON NBR:9907190078 DOC.DATE: 99/07/09 NOTARIZED: NO DOCKET ¹ FACIL:50-315 Donald C. Cook Nuclear Power Plant, Unit 1, Indiana M 05000315 50-316 Donald C. Cook Nuclear Power Plant, Unit 2, Indiana M 05000316 AU'lH.NAME AUTHOR AFFILIATION CARLSON,J.P. Indiana Michigan Power Co.

RECIP.NAME RECIPIENT AFFILIATION MORLEY,F. Michigan, State of

SUBJECT:

NPDES noncompliance notification: on 990707,unnatural turbidity was observed at Outfall 002.Caused by bentonite clay being fed into discharge vaults during molluscicide treatment. Clay feed was terminated on 990708.

DISTRIBUTION CODE: C001D COPIES RECEIVED:LTR ENCL SIZE:

TITLE: Licensing Submittal: Environmental Rept Amdt 6 Related Correspondence NOTES:

0 RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL STANG 1 1 INTERNAL 1 1 LA 1 1 NUDOCS -ABSTRACT 1 1 OGC/RP 1 0 RGN3 DRS/RSB 1 1 EXTERNAL: NOAC 1 1 NRC PDR 1 1 it1 1

D L. jr

'E NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE. TO HAVE YOUR NAME OR ORGANIZATION REMOVED FROM DISTRIBUTION LISTS OR REDUCE THE NUMBER OF COPIES RECEIVED BY YOU OR YOUR ORGANIZATION, CONTACT THE DOCUMENT CONTROL DESK (DCD) ON EXTENSION 415-2083 TOTAL NUMBER OF COPIES REQUIRED: LTTR 8 ENCL 7

One Cook Rant BidymMI49106 616 465 5901 lNQlANA NlCHlSAN Mr. Fred Morley, District Supervisor PQMfM Surface Water Quality Division Michigan Department of Environmental Quality 1342 SR M89 West Suite B Plainwell MZ 49080 July 9, 1999

Dear Mr. Morley:

Re: Cook Nuclear Plant NPDES Permit MZ0005827 This notification is provided as required by Part I, Section A.1 (a.) (c.) of NPDES Permit MZ0005827.

On July 7, 1999, at 1245 hours0.0144 days <br />0.346 hours <br />0.00206 weeks <br />4.737225e-4 months <br />., unnatural turbidity was observed at Cook Plant Outfall 002 (Condenser Cooling Water and Miscellaneous Low Volume Waste.) the turbidity was observed during a molluscicide treatment being performed at the Cook Nuclear Plant, in accordance with the conditions of our NPDES permit.

On July 7, 1999 from 1042 to 2252 hrs., Betz-Dearborn CT-2 was applied for zebra mussel control in plant raw water systems. The observed turbidity was caused by bentonite clay being fed into the discharge vaults for Units 1 and 2, during the molluscicide treatment. Clay is used to satisfy the NPDES Permit detoxification requirements. Clay feed was terminated at 0200 hours0.00231 days <br />0.0556 hours <br />3.306878e-4 weeks <br />7.61e-5 months <br /> on July 8.

The turbidity observed during the molluscicide treatment was expected, since similar observations have been made during previous treatments. Preventive actions are not possible to the detoxification requirements contained in the NPDES permit.

Should you have any questions please contact me at (616)465-5901 ext. 1153.

Sincerely John P. Carlson Environmental Superintendent C: Nuclear Regulatory Commission Si1enviro-l1correspondences1surrace eater~turbidity Ocl.doc 9907l90078 990709 PDR ADOCK,050003i5 S PDR',

AEP:America's Em1Pi Pnriaer"

Mr. Fred Morley July 9, 1999 NPDES Notification of Turbidity at Outfall 002.

I certify under penalty of law that I have personally examined and am familiar with the information submitted on this and all attached documents, and based on my inquiry of those individuals immediately responsible for obtaining the information, I believe the submitted information is true, accurate and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment.

T. P. Noonan Plant Manager

7 Q

f II