ML20085E872
| ML20085E872 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 09/18/1975 |
| From: | Lewis J CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | Baker K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML20085E873 | List: |
| References | |
| AO-75-021, AO-75-022, AO-75-21, AO-75-22, NUDOCS 8308160621 | |
| Download: ML20085E872 (1) | |
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[d 9 f5' SUBJ-PALISADES PLANT - ABNORM AL OCCURRENCES 75-21 AND 75-22
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THIS IS TO CONFIRM VERBAL NOTIFICATION 10 MR K R B6KER OVER THc.
PAST WEEKEND CONCERNING TWO ABNORMAL OCCURRENCES AT PALISADES PLANT AS FOLLOWS-v g' A0 75 BORON CONCENTRATION WAS FOUND TO BE ABOUT 1700 PPM IN g
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SIRV TANK AND SI BOTTLES AS OPPOSED TO TECHNICAL SPECIFICATIONS LIMIT OF 1720 PPM.
ALL TANKS WERE LORATED TO ABOVE 1720 PFA WITHIN 12 HOURS OF SAMPLE VERIFICATION.
CAUSE IS SPECULATIVE AT THIS IIME SINCE SIRW T ANK WAS TOO FULL TO BE DILUTED FOLLOWING A 1770 PPM SAMPLE TAKEN THREE DAYS PRIOR.
INVESTIG ATION CONIINUES AND DETAILS WILL FOLLOV IN 10 DAY REPORT.
A0 75 IIIGH PRESSURE SAFETY INJECTION VALVE MOV-3007 WAS FOUND INOPERABLE WITH THE DISK APPARENTLY SEPAHATED.
WE HAVE SWITCHED TO THE REDUNDANT HPSI IIEADEh AND TiiE ASSOCIATED VALVES WHICH OPERATE AUTOMATICALLY ON SIS SIGNAL.
THE VALVE WILL BE DISASSEMBLED AND FAILURE ANALYZED AT THE NEXT COLD SHUTDOWN.
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