ML20245L193
| ML20245L193 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 08/14/1989 |
| From: | Loflin L CAROLINA POWER & LIGHT CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NLS-89-233, NUDOCS 8908220027 | |
| Download: ML20245L193 (2) | |
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' Carolina Power & Light Company SERIAL: -
. NLS-89-233 AUS 141989, 1
n (UnitedSt'atesNuclearRegulatoryCommission ATTENTION: Document Control Desk Washington, DC 20555
, BRUNSWICK STEAM ELECTRIC' PLANT, UNIT NO. 2 DOCKET NO.'50-3221/ LICENSE NO. DPR-62 NPDES PERMIT VIOLATION
'. Gentle' men:
Pursuants to our icommitiment' to' inform the NRC of NPDES violations requiring notification (to the permitting. agency, CP&L is providing the information
!regarding a.recent violation.
4 Yours very truly, Wjf L.
fl n Manager Nuclear Licensi Section DBB/crs
( zl50CRS) '
Enclosure cc:-.Mr.'S. D.'Ebneter Mr. W. H. Ruland'
- Mr.'E; G. Tourigny l
l f0 1
411 Fayetteville Street e P. O. Box 1551
- Raleigh, N C 27602 i8908220027.890814
'PDR-ADOCK 05000324 s
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-PDC
_ - _ = -
Jr.
Flow Exceedance The NPDES permit limit for circulating water flow is 1105 cfs during the period from April through June. On June 29, 1989, Brunswick Unit 2 exceeded this limit for 56 minutes (from 0037-0133), during start-up of the unit.
Due to problems with water in the steam air ejectors, the plant experienced low condenser vacuum during the start-up process.
It was, ther efore, necessary to place the 2C circulating water pump in service, which increased the circulating water flow from 1000 ofs to 1208 cfs.
The increased flow allowed for greater condenser cooling and steam condensation, and increased the condenser vacuum. Failure to increase the vacuum would likely have resulted in the unit tripping off-line.
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