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| Start date | Title | Description | Topic | |
|---|---|---|---|---|
| ENS 52674 | 12 April 2017 19:30:00 | Loss of the Technical Support Center Ventilation System | Oyster Creek Generating Station has experienced a loss of the Technical Support Center (TSC) ventilation system due to charcoal filter test failure. A charcoal filter replacement is planned. If an emergency is declared requiring TSC activation during the time TSC ventilation is non-functional, the TSC will be staffed and activated using existing emergency planning procedure unless the TSC becomes uninhabitable due to ambient temperature, radiological, or other conditions. If relocation of the TSC becomes necessary, the Emergency Director will relocate the TSC staff to an alternate location in accordance with applicable site procedures. This notification is being made in accordance with 10 CFR 50.72(b)(3)(xiii) due to a loss of the TSC. An update will be provided once the TSC ventilation has been restored to normal operation. The NRC Resident Inspector will be notified.
This is a retraction of ENS notification 52674. After further testing and evaluation, the station concluded that the TSC Ventilation Charcoal filter met the acceptance criteria, and the TSC Ventilation was not inoperable at the moment the original ENS notification was performed. The licensee will notify the NRC Resident Inspector. Notified R1DO (Arner). | |
| ENS 50261 | 8 July 2014 00:40:00 | Technical Specification Required Shutdown | On July 7, 2014 at approximately (2040 EDT), an issue was discovered with currently removed Electromatic Relief Valves (EMRVs) that calls the operability of the currently installed EMRVs into question. Based on this new information, all 5 of the currently installed EMRVs were conservatively declared inoperable. With the potential of 5 EMRVs inoperable a Technical Specification shutdown is required under Technical Specification 3.4.b, whereby reactor pressure shall be reduced to 110 psig or less within 24 hours. This event is immediately reportable under: 50.72(b)(2)(i), 'The initiation of any nuclear plant shutdown required by the plant's Technical Specifications.' 50.72(b)(3)(v)(D), 'Any event or condition that at the time of discovery could have prevented the fulfillment of the safety function of structures or systems that are needed to: (D) Mitigate the consequences of an accident.'" The licensee notified the NRC Resident Inspector. The licensee will notify the State of New Jersey and issue a press release.
The original concern and July 7, 2014 EN (report) was caused by abnormal wear found on removed Electromatic Relief Valve actuators. However, on July 8, 2014, upon completion of in situ testing as well as visual examination of the installed EMRV actuators, it was determined that the 5 currently installed EMRVs were fully operable and capable of performing their safety function. Therefore, Oyster Creek is retracting the notifications made under 50.72(b)(2)(i) and 50.72(b)(3)(v)(D). The licensee notified the NRC Resident Inspector and the State will be notified. The licensee will be issuing a press release. Notified the R1DO (DeFrancisco). | Time of Discovery |
| ENS 49850 | 22 February 2014 21:37:00 | Offsite Notification Concerning a Small Hydraulic Fluid Spill | (The New Jersey Department of Environmental Protection) and Ocean County Health (Department were) notified of a spill of approximately 1 cup of hydraulic fluid (oil) that leaked from a vehicle and entered a storm drain at approximately 1615 (EST). The licensee notified the NRC Resident Inspector.
Upon subsequent review of the Material Safety Data Sheet associated with the fluid that leaked from the vehicle, it was determined that the fluid was not a hazardous substance as defined by the State of New Jersey (Appendix A of N.J.A.C. 7:1E). Additionally, it was determined that the fluid did not reach surface water. Based on this information, the New Jersey Department of Environmental Protection (NJDEP) was notified that the fluid that leaked from the vehicle did not reach surface water and was not a hazardous substance. The NJDEP notification was updated for the record. For the above reasons, the 4 hour non-emergency ENS notification made under EN # 49850 is hereby retracted The NRC Resident Inspector has been informed. Notified R1DO (DeFrancisco). | |
| ENS 43502 | 18 July 2007 19:49:00 | Spill of Ethylene Glycol Reported to State | Notified New Jersey D.E.P. (Department of Environmental Protection) of a spill of ethylene glycol in the Site Emergency Building at Oyster Creek. The spill was reported to NJDEP in accordance with N.J.A.E. 7:1.E, 7:26. The spill was contained and cleaned. The spill occurred during work on the Site Emergency Building air conditioning system. The licensee notified the NRC Resident Inspector.
At 11:55 on 7/19/07, New Jersey Dept. of Environmental Protection (NJDEP) was informed that: The spill of ethylene glycol, reported to them on 07/18/07, was subsequently determined to be a substance other than ethylene glycol; it was not a hazardous substance; and it was not discharged to the environment. Therefore, no report was required and the NJDEP notification (on 07/18/07) was retracted. For the above reasons, the 4 hour non emergency ENS notification , made under EN # 43502, is hereby retracted. NRC R1DO (Jim Krafty) notified. The NRC Resident Inspector was notified of this retraction by the licensee. |