ML20065H107
| ML20065H107 | |
| Person / Time | |
|---|---|
| Site: | 05000000, Indian Point |
| Issue date: | 10/27/1980 |
| From: | Abraham K NRC OFFICE OF PUBLIC AFFAIRS (OPA) |
| To: | |
| Shared Package | |
| ML082180533 | List:
|
| References | |
| FOIA-82-261 PR-I-80-149, NUDOCS 8210040401 | |
| Download: ML20065H107 (2) | |
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7 UNITED STATES f
~i NUCLEAR REGULATORY COMMISSION e
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OFFICE OF PUBLIC AFFAIRS, REGION I 631 a Avenue, King of Pnmis, Ps.19406
/5 No:
I-80-149 P
Contact:
Karl Abraham-A FOR IMPEDIATE RELEASE Tel:
215/337-5330 (October 27,1980) 337-5000.
NRC STAFF SENDS INFORMATION TO ALL NUCLEAR POWER PLANT LEAXAGE OF RIVER WATER INTO INDIAN POINT UNIT 2 CONTAI to the operators of all nuclear power plants about the circ n
leakage of Hudson River water into the containment building of the Indian Point Un reactor near Buchanan. New York.
full power early on October 17 when a nuclear instrument malfun shut down about 4:15 a.m., and workers entered the containment to investiga The plant was at about 11 a.m.
A large quantity of water was found on the containment building floor and subsequently also in the cavity under the reactor vessel.
filled with water.
The total quantity has been estimated to be aboutThe containment sumps we The principal source of leakage was from fan cooler units which are used to coo 100,000 gallons.
inside containment.
restarted twice on that day, and again on the morning of Octo was placed in a cold shutdown condition on October' 22.
of the vessel to a height of about nine feet.The cavity under the vessel ac Analyses are bein unacceptable thermal stresses were placed in the reactor vessel.g made to determine if The following combination of conditions contributed to this situation:
a i-1.
Both containment sump pumps were out of order; t
one because of blown electrical fuses, and the other because of the binding of a float that senses water in the sump and controls the start-ing of the sump pump.
2.
The operators were not alerted to the rising water level in contaiment by the sump water indicating lights.
3.
The hold-up tanks that receive. water from the sump pumps also received water from other sources, such as the continuing flow of process water, and laboratory drain water, which masked the absence of sump pump flow to 'the holding tanks.
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261
1 I-80-149 2
October 27, 1980 4.
There were significant, multiple service water (river water) leaks from several containment fan cooling tinits directly onto the floor of the containment.
These coolers have a history of leakage.
Because the water comes from the river and returns to it, rather than from a closed system of storage tanks, there is no water inventory from which losses could be detected.
The Consolidated Edison Company:is making modifications and repairs to the affected
. systems.
and analyses before restart of the plant would be permitted.The NRC staf has provided a basis for reconinending o requiring licensees o take specific actions.
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