Semantic search
| Entered date | Event description | |
|---|---|---|
| ENS 48102 | 13 July 2012 14:20:00 | At 12:00 on July 13, 2012 it was determined, during a conference call with the Exelon siren vendor, that Oyster Creek emergency planning zone (EPZ) sirens may be unreliable. The unreliability is being caused by an intermittent signal on the frequency used to activate the sirens. Therefore, an 8-hour report is required under 10 CFR 50.72(b)(3)(xiii) due to a potential 'Loss of Emergency Preparedness Capabilities.' Additionally, Exelon is contacting the Federal Communications Commission (FCC) for troubleshooting and reporting purposes, as well as, the New Jersey Office of Emergency Management (NJ OEM) and the Ocean County Office of Emergency Management to institute compensatory actions. Due to contacting other government agencies a 4-hour report is required per 10 CFR 50.72(b)(2)(xi). Exelon will notify the NRC Operations Center upon full-restoration of the Oyster Creek EPZ siren system. The NRC Resident Inspector has been informed.
As of 2058 EDT on July 14, the licensee has declared that all 42 sirens have been restored to a reliable status. The siren vendor has shifted the activation frequency to avoid the interference. The vendor is still working with the FCC to determine the cause of the interference signal at the original frequency. The licensee has notified the NRC Resident Inspector. R1DO (Doerflein) notified. |
| ENS 44612 | 29 October 2008 22:37:00 | The State of New Jersey was notified of a spill to the ground of a hazardous substance. A tube leak in a new radwaste heat exchanger caused an expansion tank to overflow resulting in less than one (1) gallon of water containing corrosion inhibiting chemicals to be discharged to the ground. The heat exchanger and the new radwaste service water system were removed from service, stopping the leak. Initial samples did not detect radioactivity in the water. Cleanup of the spill is in progress. The licensee notified the NRC Resident Inspector. |
| ENS 44526 | 29 September 2008 14:45:00 | A loss of internal phone systems was experienced at the station on 9/29/08 at 0918. This loss included the ENS phone line. Compensatory measures using cellular phones were established with the NRC. The phone outage did not affect the emergency plan state and local notification system. This event had no adverse affect on plant operations. Intermittent phone outages are expected until the issue is resolved. Maintenance is ongoing to investigate and correct the cause. The licensee notified the NRC Resident Inspector. |