ML17326A119

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NPDES Noncompliance Notification:On 990909,unnatural Turbidity Was Observed at Cook Plant Outfall 001 & 002. Caused by Bentonite Clay Being Fed Into Discharge Vaults During Molluscicide Treatment.Terminated Clay Feed
ML17326A119
Person / Time
Site: Cook  American Electric Power icon.png
Issue date: 09/10/1999
From: Carlson J
INDIANA MICHIGAN POWER CO.
To: Morley F
MICHIGAN, STATE OF
References
NUDOCS 9909200077
Download: ML17326A119 (5)


Text

Ci REGULAR. RY INFORMATION DISTRIBUTI Iv SYSTEM (RIDS)

ACCESSION NBR:9909200077 DOC.DATE: 99/09/10 NOTARIZED: NO DOCKET FACIL:50-315,Donald C.

Cook Nuclear Power Plant, Unit 1, Indiana M

05000315 50-316 Donald C.

Cook Nuclea'r Power Plant, Unit 2, Indiana M

05000316 AUTH.NAME

'UTHOR AFFILIATION'ARLSON,J.P.

Indiana Michigan Power Co.'ECIP.NAME RECIPIENT AFFILIATION MORLEY,F.

Michigan, State of

SUBJECT:

NPDES noncompliance notification:on 990909,unnatural turbidity was ubserved at Cook Plant Outfall 001

&, 002.

Caused by bentonite clay being fed into discharge vaults

. during molluscicide treatment. Terminated clay feed.

DISTRIBUTION CODE:

IE23D COPIES RECEIVED: LTR I

ENCL 0 SIZE:

TITLE: Environmental Event Report (per Tech Specs)

NOTES:

E RECIPIENT ID CODE/NAME STANG,J INTERN ': FILE CENTER 0

COPIES LTTR ENCL 1

1 1

RECIPIENT ID CODE/NAME OGC/RP COPIES LTTR ENCL 0

EXTERNAL: NOAC NRC PDR D

'E NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE. TO HAVE YOUR NAME OR ORGANIZATION REMOVED FROM DISTRZBUTION 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 6

ENCL

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Indiana Michigan ~

Power Company Cook wuorear Ranr One Cook Rara arkkrnan. MI49106 616 466 6901 Mr. Fred Morley, District Supervisor Surface Water Quality Division Michigan Department of Environmental Quality 1342 SR M89 West Suite B

Plainwell MI 49080 INDIANA MICHIOiAN POWER September 10, 1999

Dear Mr. Morley:

Re:

Cook Nuclear Plant NPDES Permit MI0005827 This notification is provided as required by Part I, Section A.l (a.)

(c.) of NPDES Permit MI0005827.

On September 9,

1999, at 0810 hours0.00938 days <br />0.225 hours <br />0.00134 weeks <br />3.08205e-4 months <br />, unnatural turbidity was observed at Cook Plant Outfall 001 and 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 September 8 -

9 from 1816 hours0.021 days <br />0.504 hours <br />0.003 weeks <br />6.90988e-4 months <br /> to 0540 hours0.00625 days <br />0.15 hours <br />8.928571e-4 weeks <br />2.0547e-4 months <br />, 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 1010 hours0.0117 days <br />0.281 hours <br />0.00167 weeks <br />3.84305e-4 months <br /> on September 9.

The turbidity observed during the molluscicide treatment was

expected, since similar observations have been made during previous treatments.

Preventive actions are not possible due to the detoxification requirements contained in the NPDES permit.

We continue to work with the MDEQ Surface Water Quality permit writer to delete this requirement for this treatment.

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

1153.

John P. Carlson Environmental Superintendent C:r Nuclax Regulatory=Commissionr r

9909200077

'ar909iO PDR ADOCK 050003l5 I>>,

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AEl'rAlner/ea's Enemy) Iarlrrer-

Mr. Fred Morley September 10, 1999 14PDES Notification of Turbidity at Outfall 001 and 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.

oonan Plant Manager

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