ML20214P996

Corrected NPDES Noncompliance Notification:On 860903,turbine Room Sump Overflowed Into Circulating Water Sys Intake Forebay.Caused by Airlocked Suction Lines.Grab Sample Taken. Condition Rept Will Determine Corrective Action

ML20214P996
Person / Time
Site:	Cook
Issue date:	09/09/1986
From:	Lemasters G INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	Bantjes J MICHIGAN, STATE OF
References
NUDOCS 8609240132
Download: ML20214P996 (3)

Text

C 5@36 5e- 316

.. q

?bM U,*~~ _ INDIANA & MICHICAN ELECTRIC COMPANY ONE SUMMIT SouARE.P.O 90K 60 FORT WAYNE,IN 46801 Te8ephone (219) 4252111 September 9, 1986 (corrected copy)

Mr. John Bantjes Surface Water Quality Division Department of Natural Resources P. O. Box 355 Plainwell, Michigan 49080

SUBJECT:

Donald C. Cook Nuclear Plant NPLES Permit No. MI 0005827 This letter confirms our September 5, 1985 telephone call.

When regeneration of the plant makeup water demineralizer is anticipated, a plant procedure calls for minimizing the level of effluent in the turbine room sump in order to accommodate the backwash volume. During normal operations turbine room sump effluent is discharged to the plant absorption pond.

During routine regeneration on September 3, the turbine room sump had filled to the point of high-level alarm. When pumps were started, suction lines became airlocked causing the sump to overflow to the circulating water system intake forebay. (Circulating water system discharges to Lake Michigan.) Pumps were stopped and valves recycled to achieve flow. Over-flow occurred from 1905 to 1925 hours0.0223 days <br />0.535 hours <br />0.00318 weeks <br />7.324625e-4 months <br /> and was calculated at 4000 gallons.

Although no sample was taken due to the emergency nature of the overflow, l

a grab sample of the turbine room sump taken at 2115 hours0.0245 days <br />0.588 hours <br />0.0035 weeks <br />8.047575e-4 months <br />, was analyzed i and'found to contain 1.1 PPM Oil and Grease and a pH of 6.68.

j A condition report required by plant procedures has documented the event I

and will determine any corrective and preventative action.

By copy of this letter, the Nuclear Regulatory Commission is notified pursuant to the requirements of Appendix B, Part II, Nonradiological Environmental Protection Plan, Section 3.2.

Very truly yours, 8609240132 860909 PDR S

ADOCK 05000315 PDR l

C. E. LeMasters l Executive Assistant l

GEL /df h['

l c: J. G. Keppler - NRC, Region III W. G. Smith, Jr. I (

o s.

',- Mr. J:hn Bantjes Septecher 9, 1986 (corrected copy)

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.

[ . E. LeMasters 9

9 9

. - . , , , . . . , , . __ _ , _ . _ . . . . - ~ . ,

. . , . y . .., _. ,

e

+

i c: M. P. Alexich - Columbus H. B. Brugger - Columbus J. E. Dolan - Columbus R. W. Jurgensen - Columbus R. F. Kroeger - Columbus K. D. Mack - Columbus R. W. Reeves /C.-E. Hawk - Columbus A. A. Blind - Cook Plant T. A. Kriesel - Cook Plant NRC Resident Inspector - Cook Plant PNSRC - Cook Plant J. F. Stietzel - Cook Plant G. Charnoff, Esq. -- Shaw, Pittman, Potts & Trowbridge R. E. Zahler, Esq. - Shaw, Pittman, Potts & Trowbridge R. C. Callen - Michigan Public Service Commission D. R. Hahn - Michigan Department of Public Health

~

s

[H EREDientoS E Nudle d Tread or[R M lat' ion'3 Dottie Sherman - ANI Library

• INPO - Records Center s