ENS 41954
ENS Event | |
|---|---|
03:04 Aug 28, 2005 | |
| Title | Unusual Event Declared Due to Hurricane Warning |
| Event Description | At 2204 CDT, an Unusual Event was declared due to a Hurricane warning in St Charles Parish, LA. The licensee does not have any Limiting Conditions for Operation on safety related equipment. No electrical grid disturbances currently exist.
The licensee will be notifying the NRC Resident Inspector. The licensee notified the State and Local government agencies.
Waterford 3 will commence a plant shutdown to Mode 4 on August 28, 2005 at 1100 CDT. The goal is to be approximately 325 deg F reactor coolant system temperature with both trains of Shutdown Cooling in service [expected at approximately 0100 CDT 08/29/05] . This is approximately 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> before hurricane force winds are expected on site. Notified R4DO (Jones), NRR EO (Kuo), IRD Mgr. (Wilson), DHS (York), and FEMA (Canupp).
As a result of Hurricane Katrina, all offsite power was lost at 0800 CDT. The emergency diesel generators successfully started and loaded. Notified R4DO (R. Bywater), NSIR (Leach, Wilson), NRR EO (Kuo, Jung), FEMA (Kuzia), DHS (Stransky).
The Hurricane warning for St Charles Parish, LA, has been discontinued by the National Weather Service. Initiating condition, D UE-5, is no longer applicable. Waterford 3 remains in an Unusual Event for initiating condition C UE-1, loss of all offsite power. An agreement to relax 60 minute notification updates to State and local authorities remains in effect. The licensee has notified State and local authorities as well as the NRC Resident Inspector. Offsite power is available to the licensee switchyard. However, the voltage is too high for plant specification and the licensee remains disconnected from offsite power and on the emergency diesel generators.
Waterford 3 remains in an Unusual Event for initiating condition C UE-1, loss of all offsite power. An agreement to relax 60 minute notification updates to State and local authorities remains in effect. The communications system for Public Automatic Branch Exchange (PABX) is working internally, but not externally. Other areas where communications are lost are Emergency Operations Facility (EOF), Operations hotline, Reactor Auxiliary Building (RAB), and the Emergency Notification System (ENS). Waterford has use of an industrial hotline to a circuit in the Parish of St Charles, however, this is very limited in its capability. The Civil Defense communication system is still inoperable.
NRC exited monitoring mode at 1800 CDT on 9/6/05. Notified R4 IRC (Waig), R4DO (Powers), IRD (Leach), DHS (Cartlidge), FEMA (Kuzia).
At 17:57 CDT the licensee exited from the Unusual Event. Offsite power was restored and communications were reestablished with (1) a functional operational hotline, (2) a dedicated open line to NRC Headquarters Operations Center, and (3) having the plant PABX circuits routed through Little Rock, AK area code. The plant is holding in Mode 5 until further notice, however, this may change when the decision to (or not to) repair a check valve in the Safety Injection system is made. Notified R4DO (Powers), IRD (McGinty), NRR EO (Hackett), DHS (Sullivan), and FEMA (Kuzia).
This report has been updated to reflect the correct time of the licensee exiting their unusual event classification. Unusual event was exited at 1740 CDT not 1757 CDT. Notified R4DO (Powers), IRD (McGinty), NRR EO (Jung). |
| Where | |
|---|---|
Waterford  Louisiana (NRC Region 4) | |
| Reporting | |
| Emergency class: | Unusual Event |
| 10 CFR 50.72(a) (1) (i), Emergency Class Declaration | |
| Time - Person (Reporting Time:+-3.7 h-0.154 days <br />-0.022 weeks <br />-0.00507 months <br />) | |
| Opened: | Kenny Cambrey 23:22 Aug 27, 2005 |
| NRC Officer: | Jeff Rotton |
| Last Updated: | Sep 8, 2005 |
| 41954 - NRC Website
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Unit 3 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 570422024-03-22T04:37:00022 March 2024 04:37:00
[Table view]10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Notification of Unusual Event Due to Fire in the Protected Area ENS 554352021-08-29T23:12:00029 August 2021 23:12:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Notification of Unusual Event Due to Loss of Offsite Power ENS 528632017-07-17T21:17:00017 July 2017 21:17:00 10 CFR 50.72(b)(3)(v)(A), Loss of Safety Function - Shutdown the Reactor, 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Unusual Event Declared Due to Loss of Offsite Power ENS 444542008-09-01T04:00:0001 September 2008 04:00:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Notification of Unusual Event Due to Hurricane Warning Onsite ENS 419542005-08-28T03:04:00028 August 2005 03:04:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to Hurricane Warning ENS 410402004-09-14T21:04:00014 September 2004 21:04:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to Hurricane Watch in St. Charles Parish 2024-03-22T04:37:00 | |