ML20056A180

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Forwards Info Re NPDES Permit Noncompliance Reported to Permit Agency for Month of Mar 1990,per 830426 Agreement
ML20056A180
Person / Time
Site: Brunswick  Duke energy icon.png
Issue date: 07/25/1990
From: Loflin L
CAROLINA POWER & LIGHT CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NLS-90-133, NUDOCS 9008060055
Download: ML20056A180 (2)


Text

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, .. 9 ggg SERIAL: NLS-90 133 Carolina Power & Light Company 07 25 90  !

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i United States Nuclear Regulatory Ovmmission i ATTENTION: Document Control Desk

-Washington, DC 20555 BRUNSWICK STEAM ELECTRIC PLANT, UhIT.NOS. 1.AND 2 i DOCKET NOS. 50-325 & 50 324/ LICENSE NO.C. DPR-71 & DPR-62 l NPDES PERMIT NONCOMPLIANCE i Centlemen; i

By letter dated April 26, 1983, Carolina Power & Light Company (CP&L) agreed l to provide the NRC with copies of changes and/or violations to the National  !

Pollutant Discharge Elimination System (NPDES) permit requiring notification -!

to the permit agency.

i CP&L is providing the attached information regarding NPDES permit noncom-pliance which was reported to the permit agency.for the month of March 1990. j Yours very truly, f

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.L. . in Mana r Nuclear Licen ing Section DJK/ecc (753ECC)

Attachment cc: Mr. S. D. Ebneter Mr. N. B. Lc. l Mr. R. L..Prevatte eq b is 411 Fayetteville Street

  • P. O Box 1551
  • Raleign, N C. 27602 gegensmanslangsungmanimmEEnggemenremami . (QO l 9008060053 900723 ms hDR ADOCK 03000324 '

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FINE MESH SCREEN NONCOMPLIANCE On March 31, 1990, Unit 1 operated with two fine mesh screens and one coarse mesh screen in service. The NPDES Permit requires the operation of three fine  !

mesh _acreened pumps if three or more circulati - water pumps are in operation on a unit.

At 0835 on March 31,.the IB circulating' water intake pump (CWIP) equipped with fine mesh screens tripped due to high differential pressure. The 1A CWIP with coarse mesh screen was started at that_ time. At 0836 the 1C and ID CWIPs also tripped due to high differential pressure. At 0838,f the 1B CWIP was restarted. At 0851, the'1C and ID CWIPs were restarted and the 1A CWIP was shut down. The high differential pressure was believed to be caused by debris in the water at the intake canal, p

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