PNO-II-89-020, on 890214,plant Shut Down Due to Continuing SG Conductivity & Sulphate Problems Associated W/Resin Intrusion Event.During Shutdown Steam Generators Flushed & Mechanically Cleaned Along W/Dearating Tank

PNO-II-89-020:on 890214,plant Shut Down Due to Continuing SG Conductivity & Sulphate Problems Associated W/Resin Intrusion Event.During Shutdown Steam Generators Flushed & Mechanically Cleaned Along W/Dearating Tank

ML20247D188
Person / Time
Site:	Summer
Issue date:	03/13/1989
From:	Modenos L NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:
References
PNO-II-89-020, PNO-II-89-20, NUDOCS 8903300399
Download: ML20247D188 (1)

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. March 13, 1989 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE PN0-II-89-20 l This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance. The information is as initially received without verifi-cation or evaluation, and is basically all that is known by the Region II staff on this l date. ,-

FACILITY: South Carolina Electric & Gas Co. Licensee Emergency Classification:

V. C. Summer Notification of Unusual Event I Docket No. 50-395 Alert I Jenkinsville, South Carolina Site Area Emergency General Emergericy X Not Applicable

SUBJECT:

V. C. SUMMER SHUTDOWN IN EXCESS OF 48 HOURS Due to continuing SG conductivity and sulphate problems associated with a resin intrusion event that occurred on February 14, 1989, a decision was made to shut the unit down on March 10, 1989. At the time of shutdown SG cation conductivity ranged from 0.95 to 1.0 micromho per centimeter and sulphates ranged from 56 to 77 parts per billion. The EPRI recommended limits are _0.8 and _20, respectively. The plant is in cold shutdown. The steam generators are being flushed by filling and draining. Plans then call for mechanical cleaning of the S/G's, dearating tank, main condenser and piping systems. All three pressurizer safety valves will be replaced while the unit is shutdown. The licensee anticipates the outage to last approximately 21 days.

A regional Water Chemistry Specialist will be on site the week of March 20, 1989.

1 This information is current as 10:00 a.m. on March 3, 1989.

-FOR INFORMATION ONLY-CONTACT: L. Modenos - 242-5619 l DISTRIBUTION:

1 One White M' land Nat'l Flint North Bank Bldg Regions MAIL T0: DCS (Original IE 34)

Chairman Zech ARM Region I DOT (Transportation Only)

Comm. Roberts 0IA Region II Comm. Carr AE0D Region III FAX T0: INPO 7 or Comm. Rogers Region IV NSAC Comm. Curtiss Region V RII SECY NRC OC OGC Nicholson Lane LICENSEE (Reactor Licensee) 51/o OCA RES NRC HQ OPERATIONS CENTER 3 <r ,

GPA/SLITP/PA l ED0 l 01 H Street NRR ACRS NMSS PDR psA 6 5520: //89 0 TO REGIONS AND HQ If- I'/ I 8903300399 890313 PDR I&E i PNO-II-89-020 PNU _ l

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