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| Entered date | Event description | |
|---|---|---|
| ENS 50796 | 8 February 2015 08:12:00 | At approximately 0848 (EST) on February 7, 2015, a contract employee was found unresponsive at a VC Summer Unit 1 facility outside the Owner Controlled Area. The VC Summer Medical Emergency Response Team responded to the scene and provided assistance until offsite medical personnel arrived. Emergency Medical Services arrived on the scene and transported the individual to a local area hospital. VC Summer has reported this to OSHA and is reporting this to the NRC in accordance with 10 CFR 50.72 (b)(2)(xi). The NRC Resident Inspector has been notified.
At 0935 EST, on February 16, 2015 SCE&G notified OSHA that the contract employee had passed away. This update also corrects the second sentence of the initial notification that station personnel versus the Medical Emergency Response Team responded to the scene. The NRC Resident Inspector has been notified. Notified R2DO (Nease). |
| ENS 50293 | 22 July 2014 07:53:00 | At 0414 (EDT on 7/22/2014), VC Summer Nuclear Station automatically tripped due to decreasing water level in the 'C' Steam Generator. The trip occurred when valve XVB-09210 WI System Condensate Bypass Valve failed to open as required while the station was removing the Condensate Polishing System during startup. The Condensate Polishing System is used to purify and filter the condensate from the non-nuclear, secondary side of the plant. This valve failure caused low level in the Deaerator Storage Tank, which consequently tripped all feedwater pumps. This loss of feedwater led to Lo-Lo Steam Generator level in the 'C' Steam Generator. All Emergency Feedwater pumps automatically started on Lo-Lo Steam Generator level and all control rods inserted fully. The Steam Generator levels recovered quickly. Presently the plant is in Mode 3. Decay heat is being removed by dumping steam to the condenser. A station response team is actively investigating the cause of the event. The NRC Resident Inspector has been notified." The licensee will notify the State and local governments. |
| ENS 50229 | 26 June 2014 15:15:00 | This is a non-emergency notification regarding a very small amount of Special Nuclear Material (SNM) which is unaccounted for. On May 30, 2014, a discrepancy was found in the V.C. Summer Nuclear Station SNM inventory. After extensive review, it was determined on June 19, 2014 that one nuclear instrumentation incore detector could not be located at V.C. Summer Nuclear Station. Detectors of this type are used to measure incore neutron flux (intensity of neutron radiation) inside the reactor vessel. This is being reported under 10 CFR 20.2201 (a)(1)(ii) Reports of Theft or Loss of Licensed Material. According to V.C. Summer documentation, there should be 42 such detectors in storage. Only 41 detectors could be physically located. There is no evidence of theft or diversion of the detector. Detectors of this type contain very small amounts of Uranium-235 (.0041 grams/detector), which qualifies them as SNM. The detector is believed to be located in a storage location in the Reactor Building (RB). The RB storage location will be inspected during the next refueling outage. This event had no effect on plant operations. No impact on public health and safety has been identified. A written report will be made in accordance with 10 CFR 20.2201(b)(1)(i-vi). The NRC Resident Inspector has been notified by the licensee. THIS MATERIAL EVENT CONTAINS A "LESS THAN CAT 3" LEVEL OF RADIOACTIVE MATERIAL Sources that are "Less than IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. Some of these sources, such as moisture density gauges or thickness gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf |
| ENS 42068 | 23 October 2005 05:30:00 | Hurricane Warning for St. Lucie Plants 1 & 2. U-2 will be going to Mode 4 prior to Hurricane force winds on site. U-1 in refueling outage, outage risk safety assessment will be green prior to hurricane force winds on site. The licensee indicated that all emergency diesel generators are operable on both units. The licensee indicated that they needed to restore A train component cooling water on Unit 1. The licensee is in EAL# 11A for Hurricane Warning - Unusual Event. The licensee will notify the NRC Resident Inspector. UPDATE FROM NRC (WILSON) TO NRC (KNOKE) AT 17:00 ON 10/23/05 The NRC entered into Monitoring Mode due to hurricane force winds expected to be at the site within 12 hours. |