ML20246B813

Provides Followup Rept to Util 890524 Noncompliance Ltr.Util Has Determined That Blowdown Diffuse Line Partially Blocked W/Either River Silt Settled in Diffuser or Built Up Inside Pipe Since Diffuser Inception.Matl Will Be Removed

ML20246B813
Person / Time
Site:	Limerick
Issue date:	06/20/1989
From:	Mccormick M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	Bauer R PENNSYLVANIA, COMMONWEALTH OF
References
NUDOCS 8907100125
Download: ML20246B813 (2)

Text

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• PHILADELPHIA ELECTRIC COMPANY l

LIMERICK GENER ATING ST ATION P. O. BOX' A l S AN ATOG A, PENNSYLV ANI A 19464 June 20, 1989 Mr. Robert Bauer, Jr.

Department of Environmental Resources l Bureau.of Water Quality. Management i 1875 New Hope Street l:

Norristown, PA 19401

SUBJECT:

Cooling Tower Blowdown Manhol? Overflow Incident Tollowup, Limerick Generating Station,

' NPDES Permit No. PA-0051926 l

Philadelphia Electric Company noncompliance

REFERENCE:

letter to Mr. Robert Bauer, Jr. of DER from-M. J. McCormick, dated May 24, 1989.

Dear Mr. Bauer:

This letter is a followup to the noncompliance letter dated May 24, 1989 from Limerick Generating Station. It has been determined' that the blowdown diffuser line is partially blocked.

Arrangements have been made to remove the obstructing material.

.This material is believed to be either river silt which settled in the diffuser during the recently' completed four . month refueling outage or river silt which built up inside the pipe since the diffuser's inception. Regardless of the origin, the material will be removed and disposed of as soon as river conditions permit. Removal will be accomplished by mobile dredging or similar equipment.

8907100125 890620 h PDR ADOCK 05000352 D.

s PDC

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1 Physical access to the diffuser is only possible when the i Schuykill River flow is at a minimum. Recent and consistent i rains have elevated river flowrates to above normal condition for i this time of year. This has postponed resolution of the problem until river flow returns to normal. 1 Completion of this task should preclude the blowdown manhole from overflowing and thereby preventing any future noncompliance of this type.

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t[J.McCormick,Jr.

Plant Manager RSU/sjm rsu 6/15/89.1 cc: U. S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555 Administrator Region I Office of Inspections and Enforcement U. S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, FA 19406 Station Resident NRC Inspector Tom Kenny, M.C. #NRC Program Management Section (3WM52)

Permits Enforcement Branch l Water Management Division Environmental Protection Agency Water Permits Section Region III 841 Chestnut Building Philadelphia, PA 19107 l

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