ML17321A847

NPDES Noncompliance Notification:On 850804,low Ph Found on Heating Boiler Blowdown Prior to Mixing W/Cooling Water. Probably Caused by Inadequate Ph Control

ML17321A847
Person / Time
Site:	Cook
Issue date:	08/15/1985
From:	Will Smith INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
NUDOCS 8508270224
Download: ML17321A847 (4)

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~ I&&tria ~ >.i GUUTItiG INDI NA Br MICHIGANElECTRIC COMPANY DONALD C. COOK NUCLEAR PLANT EC P.O. Box 458, Bridgman, Michigan 49106 (616) 465.5901 UBS SS August 15, l9 85 )

Mr. J.G. Keppler, Regional Administrator United States Nuclear Regulatory Commission Region 799 III Roosevelt Road Glen Ellyn, IL 60137 Operating License DPR-58/74 Docket Nos. 50-315/50-316

Dear Mr. Keppler:

Pursuant to the requirements of Appendix B, Part II, Nonradiological, Environmental Protection Plan, Section 3. 2, a copy of the report to the Michigan Water Resources Commission notifying them of a low pH on the Heating Boiler blowdown prior to mixing with cooling water on August, 4, 1985, is attached. This report is required by Amendment No. 54 to Facility Operating License No. DPR-58 and Amendment No. 40 to Facility Operating License No. DPR-74 dated May 6, 1982.

Sincerely, Plant Manager

/bab Attachment cc: John E. Dolan M.P. Alexich R.F. Kroeger H.B. Brugger R.W. Jurgensen NRC Resident Inspector R.C. Callen, MPSC G. Charnoff, Esq.

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/E,'loacrka INDIANA & MICHIGANEIECTRIC COMPANY ONE SUMMIT SQUARE. P.O. 8OX 60. FORT WAYNE. IN. 46601 TeIephone (219) 425 2111 RICHARD C. hIEhiGE August 9, 1985 Vice President (Corrected ~CO )

Paul D. Zugger, Executive Secretary Michigan Water Resources Commission Stevens D. Mason Building, Box 30026 Lansing, Michigan 48909

Dear Mr. Zugger:

RE: Donald C. Cook Nuclear Plant NPDES Permit No. MI 0005827 Boiler Blowdown pH The heating boiler which had been last used on February 26, 1985 was started on July 16, 1985. A sample taken on August 4, 1985 from the blowdown prior to mixing with cooling water, had a pH of 5.56. The high pH for the day was 9.57. The average of three pH samples during the day was 7.87.

The low pH value was likely the result of inadequate pH control.

Very truly yours, C'.

Richard C. Menge Vice President RCM/df c: W. G. Smith 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.

c'.

Richard C. Menge

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