ML20072J294

NPDES Noncompliance Notification:On 830525,pH of Retention Pord Discharge Exceeded Limits.Caused by Leaks in Retaining Board Used to Siphon Sludge from Pond to Discharge.Leaks Repaired on 830526

ML20072J294
Person / Time
Site:	Point Beach
Issue date:	06/23/1983
From:	Fay C WISCONSIN ELECTRIC POWER CO.
To:	WISCONSIN, STATE OF
References
WI-0000957-2, WI-957-2, NUDOCS 8306300058
Download: ML20072J294 (1)

Text

O lMsconsin Sectnc mmcwa 231 W. MICHIGAN, P.o. box 2046. MILWAUKEE. WI 53201 June 23, 1983 STATE OF WISCONSIN Department of Natural Resources WPDES Permit Section P.O. Box 7921 Madison, Wisconsin 53707 Gentlemen:

C WPDES Permit No. WI-0000957-2 POINT BEACH NUCLEAR PLANT On May 27, 1983, the Department was notified of a high pH discharge from the Point Beach Nuclear Plant. The pH of the retention pond discharge i j (sample point 501) was 10.3 (s.u.) on May 25, 1983.

On May 9, 1983, we began to lower the level of the retention pond in order to inspect the bottom contour and to determine if aquatic organisms p were disturbing the sludge and causing problems with pH. When the retaining boards were replaced and the pond allowed to refill, leaks developed in the retaining boards that acted to siphon sludge from the bottom of the pond into the discharge. The sludge, which is primarily lime sludge from the 7

makeup water treatment process, resulted in the high pH of the discharge.

The low volume of water discharged from the retention pond into the once-through cooling water discharge ~did not have a significant impact on the pH of the outfall. A pH sample taken of outfall 001 on May 25 was 8.3 (s.t.).

The leaks in the retaining boards were repaired on May 26, 1983. No chemical additions were made to adjust the retention pond pH since the cooling water outfall pH was within the permit limits of 6.0 to 9.0 (s.u.).

Very truly yours, h'

[4M Vice President - Nuclear C. W. Fay cc: DNR Lake Michigan District CNRC Washington, D.C.

NRC Region III g

8306300058 830623 PDR ADDCK 05000266 g PDR