ML17333B005
| ML17333B005 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 08/19/1997 |
| From: | Fitzpatrick E AMERICAN ELECTRIC POWER CO., INC. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| AEP:NRC:1208U, NUDOCS 9708250101 | |
| Download: ML17333B005 (11) | |
Text
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~ "'EGULATORINFORMATION DIBTRIBUTIONIETEM (RIDE)
L A(.CESSION NBR:9708250101 DOC.DATE: 97/08/19 NOTARIZED:
NO DOCKET ¹ FACIL:50-315 Donald C.
Cook Nuclear-Power Plant, Unit 1, Indiana M
05000315 AUTH,NEjfs;..:
AUTHOR AFFILIATION FITZPAMJC>K,E, American Electric Power Co., Inc.
RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)
SUBJECT:
Forwards notification to MI Dept of Environ Quality,dtd 970722 re Unit, 1 (outfall 001) analyzer calibr drift,per NPDES Permit MI0005827,Part 1I,A.5.
DISTRIBUTION CODE:
IE23D COPIES RECEIVED:LTR ENCL SIZE:
TITLE: Environmental Event Report (per Tech Specs)
NOTES:
RECIPIENT ID CODE/NAME PD3-3 PD INTERNAL FILE CENTER EXTERNAL: NOAC COPIES LTTR ENCL 1
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1 RECIPIENT ID CODE/NAME HICKMAN,J OGC/HDS2 NRC PDR COPIES LTTR ENCL 1
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NOTE TO ALL "RIDSN RECIPIENTS:
PLEASE HELP US TO REDUCE WASTE. TO HAVE YOUR NAME OR ORGANIZATION REMOVED FROM DZSTRIBUTION 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 7
ENCL 7
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Indiana Michigan Power Company 500 Circle Drive Buchanan, Ml 491071395 I&iMINIM MICHIGAN IIOSFM August 19, 1997 Docket No.:
50-315 U.
S. Nuclear Regulatory Commission ATTN:
Document Control Desk Washington, D.
C.
20555 Gentlemen:
AEP: NRC: 1208U Donald C.
Cook Nuclear Plant Unit 1 NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)
PERMIT NO. MI0005827 EXCEEDED CHLORINATION The attached notifications are forwarded for your information pursuant to Cook Nuclear Plant's NPDES Permit MI0005827, Part II, A.5.
Attachment 1 is our notification to the Michigan Department of Environmental Quality (MDEQ), dated July 22, 1997, regarding unit 1 (outfall 001) analyzer calibration drift.
Attachment 2 is our notification to the MDEQ, dated July 25, 1997, regarding exceedence of total residual oxidant in the daily continuous chlorination of the unit 1 circulating water system.
Should you have any notifications, please Ext. 1153.
Sincerely, E. E. Fitzpatrick Vice President questions or concerns regarding these contact John Carlson at 616/465-5901, vlb Attachments cc:
A. A. Blind A. B. Beach MDEQ -
DW E( RPD NRC Resident Inspector J.
R. Padgett 9'708250iQi 9708i'P PDR ADOCK 050003i5 S
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ATTACHMENT 1 TO AEP:NRC:1208U DONALD C.
COOK NUCLEAR PLANT UNIT 1 JULY 22 g 1997 g NOTIFICATION TO MDEQ
American Electric P er Nuclear Generatio p
500 Circle Drive Buchanan. Ml 491071373 NHERICAM'LECTRIC POWER Mr. Fred Morley Plainwell District Office, SWQD Michigan Department of Environmental Quality 1342 M-89 West, Suite B Plainwell, Michigan 49080 July 22, 1997
Subject:
Cook Nuclear Plant National Pollutant Discharge Elimination System Permit No. MI0005827
Dear Mr. Morley:
This notification is made pursuant to Cook Nuclear Plant's NPDES Permit MI0005827, Part II, A.5.
On July 14, 1997, the Unit 1 (outfall 001) analyzer was calibrated as part of the twice-weekly calibration schedule.
When the evaluation of calibration data was completed on July 18, 1997, it was determined that the analyzer had drifted in a non-conservative direction.
It is estimated that the readings logged on July 13, 1997, were actually 20 times higher than indicated.
Therefore, the three readings of 6, 15, and 20 pg/I were calculated to be 120, 300, and 400 pg/I, respectively.
The daily maximum intermittent value is estimated to be 273 Ijg/I. The Total Residual Oxidant daily maximum intermittent limitfor Outfall 001 is 200 pg/I, with a single sample limitof 300 yg/I.
The exceedence occurred during intermittent chlorination on July 13, 1997, from 1050 to 1130 EDT. There was no exceedence of the continuous chlorination limit.
The analyzer was recalibrated and returned to service on July 14, 1997.
The cause of the analyzer drift is under investigation.
Please contact John Garison at (616) 465-5901, ext 1153, with any questions you have.
Sincerely, Qgz~'~r Diane M. Fi g r Environme t
Affairs Manager
Mr. Fred Morley
~ Page 2 July 22, 1997 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.
J. R. Sampson Plant Manager
Mr. Fred Morley
'age 3 July 22, 1997 bc:
<M~S. Ackermari J. P. Garison C. E. Hawk D. O. Morley B. K. Zordell
ATTACHMENT 2 TO AEP:NRC:1208U DONALD C.
COOK NUCLEAR PLANT UNIT 1 JULY 25 ~
1 997 g NOTIFICATION TO MDEQ
Arnericar< Electric Power Cook Nuclear Plant One Cook Place Srktgrnan. Ml491 C6 6164655901 ANERICAN ELECTRIC POWER Mr. Fred Morley Plainwell District Office, SWQD Michigan Department of Environmental Quality 1342 M-89 West, Suite B Plainwell, Michigan 49080 July 25, 1997
Subject:
Cook Nuclear Plant National Pollutar.l Discharge Elimination System Permit No. MI0005827
Dear Mr. Morley:
This notification is made pursuant to Cook Nuclear Plant's NPDES Permit MI0005827, Part II, A.5.
On July 21,
- 1997, during the daily continuous chlorination of the Unit One Circulating Water System, the Outfall 001 daily maximum was measured at 0.013 ppm Totyl Residual Oxidant (TRO). This value exceeds the permitlimit of 0.006 p
d '~ii ft kM Permit MI0005827. Chlorination was terminated upon discovery of the exceedence.
The cause of the exceedence was a failed back pressure regulator.
The regulator adjusting device on the sodium hypochlorite feed pump skid loosened due to mechanical vibration.
As a corrective measure, all back pressure regulators associated with the chlorination system were modiTied to protect them from similar failures caused by mechanical vibration.
Please contact John Garison at (616) 465-5901, ext 1153, with any questions you have.
Sincerely, Diane M. Fitzg Environmental Affairs Manager
Mr. Fred Morley Page 2 July 25, 1997 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.
J. R. Sampson Plant Manager
Mr. Fred Morley Page 3 July 25, 1997 bc:
M. S; Ackerman J. P. Garison C. E. Hawk D. O. Morey B. K. Zordell MDEQ File