ENS 46634
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ENS Event | |
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16:09 Feb 22, 2011 | |
Title | Offsite Notification Due to Loss of Potable Water Supply |
Event Description | Arizona Public Service Co. made an offsite notification to the Maricopa County Environmental Services Division at 0909 MST on February 22, 2011, to report a loss of power to the Palo Verde Nuclear Generating Station drinking water supply pumps which resulted in the depressurization of the site domestic water supply header. The pumps were out of service on February 21, 2011, between the hours of 2001 and 2300 MST. Full service has been restored.
The loss of power was related to the loss of Startup Transformer A-E-NAN-X02 as reported in ENS #46633 at 0023 on February 21, 2011. The NRC Resident Inspectors have been notified. |
Where | |
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Palo Verde ![]() Arizona (NRC Region 4) | |
Reporting | |
10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
Time - Person (Reporting Time:+-1.67 h-0.0696 days <br />-0.00994 weeks <br />-0.00229 months <br />) | |
Opened: | Kent Chavet 14:29 Feb 22, 2011 |
NRC Officer: | Dong Park |
Last Updated: | Feb 22, 2011 |
46634 - NRC Website
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Unit 1 | |
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Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
Unit 2 | |
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Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
Unit 3 | |
---|---|
Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
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