Semantic search
| Entered date | Event description | |
|---|---|---|
| ENS 49528 | 12 November 2013 01:23:00 | At 0002 EST, Unit 1 Manually tripped the Reactor from 90% power due to an unisolable leak in the Digital Electro-Hydraulic (DEH) System. All CEAs fully inserted into the Reactor Core. All systems responded as expected on the trip. Decay Heat removal currently using Main Feedwater and Steam Bypass Control System. After the trip, DEH pumps were secured to stop the transfer of fluid from the DEH system to the Turbine Building. Investigation ongoing to determine exact location of the leak. This condition is reportable pursuant to 10CFR50.72(b)(2)(iv)(B). The was no impact on Unit 2. The NRC Resident Inspector has been notified. |
| ENS 43529 | 27 July 2007 13:13:00 | At 1200 EDT, the following off-site agencies were notified of 0.68 gallons of 35 weight-percent Hydrazine spillage into a concrete berm: National Response Center, State Emergency Response Commission, and Florida Department of Environmental Protection. The amount of Hydrazine spilled was greater than the reportable quantity of 0.34 gallons of 35 weight-percent hydrazine. As stated above, the leak was fully contained in its designated containment area and none reached the environment. The leak has been identified and stopped, area has been cleaned. Notification is due to 10CFR50.72 (b)(2)(xi), due to notification of off-site agencies. The licensee notified the NRC Resident Inspector. |
| ENS 42445 | 23 March 2006 10:25:00 | At approximately 1030 this morning, the ENS lines for unit 1, unit 2, and Technical Support Center will be unreliable and may be unavailable for maintenance on off-site telephone circuitry. The expected duration will be until 1600 on 3/23/06. Commercial telephones will still be available. The loss of the ENS communications is reportable under 10CFR 50.72 (b)(3)(xiii). St Lucie will perform a phone test following ENS restoration. Commercial phone lines to the site are still available. The licensee notified the NRC Resident Inspector.
ENS lines for unit 1, unit 2 and the Technical Support Center have been restored and tested. The licensee notified the NRC Resident Inspector. Notified R2DO (C. Evans) |
| ENS 41067 | 24 September 2004 17:23:00 | Hurricane warning in effect for St. Lucie County including Plant Site. Hurricane warning was issued by the National Weather Service. St. Lucie Nuclear Power Plant entered an Unusual Event Classification per Emergency Action Level 5B (Hurricane Warning). State and Local Officials notified by the licensee. The NRC Resident Inspector was notified of this by the licensee.
St. Lucie Unit 1 commenced a plant shutdown at 0820 in preparation for Hurricane. St. Lucie Unit 2 will commence plant shutdown at 0900 in preparation for Hurricane. St. Lucie still in Unusual Event due to Hurricane warning. Unit 1 expects to enter mode 3 at approximately 1230 hours with Unit 2 entering mode 3 between 1300-1330 hours. Both Units will remain in mode 3 with restart dates to be determined. Highest sustained winds on-site are projected at 120 mph. Current wind speed on-site is between 14-15 mph sustained from a northerly direction. The licensee notified both state and local agencies and will inform the NRC Resident Inspector. Notified R2DO (Robert Haag), NRR (Stu Richards), IRD (Susan Frant), R4DO (William Johnson), FEMA (Erwin) and DHS-DOE Desk (left message).
St. Lucie Units 1 & 2 have shutdown and have been removed from service. R2DO (Haag) , NRR EO (Stu Richards), FEMA (Erwin), DHS (Algen), R4DO (William Johnson), NRC Region 2 (Hufham) & IRD (S. Frant) notified. The NRC Resident Inspector will be notified of this by the licensee.
Hurricane warning has been discontinued. Unusual Event exited at 1412 EDT. R2DO (Haag), NRR EO (Richards), IRD Manager (S. Frant), R4DO (Bill Johnson), FEMA (Austin), DHS (Travis Johnson) , DOE (Robert Turner), NRC/DOT (Crews), USDA (Lori Thomas) & DHS-DOE Desk (message left) notified. The NRC Resident Inspector was notified of this update by the licensee. HOO Note: See related ENs # 41071, 41072 and 41073. |