ML20084K583
| ML20084K583 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 09/27/1974 |
| From: | Stephenson B COMMONWEALTH EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML20084K585 | List: |
| References | |
| NUDOCS 8305190485 | |
| Download: ML20084K583 (1) | |
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e g> JAMES G KEPPLER REGIONAL DIRECTOR DIRECTORATE OF REGULATORY OProATinNS g
DEGION III U S ATOMIC ENERGY COMMISSION 799 ROOSEVELT RD O GLEN ELLYN IL 60137 g
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THE SUBJECT IS DPR19 DRESDEN NUCLEAR POWER STATION UNIT 2 TH WILL CONFIRM A CONVERSATION WITH F MAURA 0F YOUR OFFICE AT 1 -
l O HOU7S THIS 1%TE CONCERNING DEGRADATION OF LIQUID WASTE PIPING IN g
THE RADVASTE SYSTEM DUE TO THE FAILURE OF 2 1/4 INCH r>RESSURE SWITCH INSTRUMENT LINES ON "B" WASTE COLLECTOR FILTER.
MAINTENANCE IN O THE CROWDED WORK AREA WHERE THESE PRESSURE SWITCHES ARE LOCATED g
INADVERTENTLY CAUSE THE SWITCHES TO BE BUMPED AND. JARRED ENOUGH SO THAT DURING THE OPERATION OF THE FILTER BACKWASH CYCLE, THE O DOME VENT AND DOME DRAIN PRESSURE SWITCHES BROKE LOOSE AND SPILLED g'
CONTAMINATED WATER TO THE FLOOR.
BOTH FAILURES WERE LOCATED AND ISOLATED IMMEDI ATELY AND THE SPILLED WATER WAS CONTAINED IN THE
(') DADWASTE FLOOR DR AI N SYSTEM.
THIS NOTIFICATION WILL BE FOLLOWED BY g
~A 10 EMY REPORT.
B B STEPHENSON SUPERINTENDENT DRESDEN NUCLEAR P0YER STATION COMMONWEAL Q TH EDISON C0 ROUTE 1 f0RRIS IL 60450 Q
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