10/9/14 Still no update on:Non-Agreement State Event Number: - TopicsExpress



          

10/9/14 Still no update on:Non-Agreement State Event Number: 50499 Rep Org: HIGH ENERGY DEVICES, LLC Licensee: HIGH ENERGY DEVICES, LLC Region: 3 City: BRIDGETON State: MO RELEASE OF KRYPTON -85 The licensee received 125 millicuries of Krypton-85 in a cylinder that was in excess of their license limit. The license limit is 5 millicuries. During an experiment to transfer the Krypton-85 to an evacuation chamber, the chamber did not pressurize as expected, and all 125 millicuries of Krypton-85 was evacuated to atmosphere. The licensee is still investigating the incident and will provide additional information when it becomes available. * * * UPDATE PROVIDED BY JOSEPH KOCH TO JEFF ROTTON AT 0835 ON 10/07/2014 * * * Licensee provided correction to the original report. Event date was 09/26/2014 at 1600 CDT. Notified R3DO (Orlikowski), FSME (McIntosh) and FSME Events Resource via email. Power Reactor Event Number: 50518 Facility: LIMERICK Region: 1 State: PA Unit: [1] SODIUM HYPOCHLORITE LEAK WITH POTENTIAL TO ENTER THE ENVIRONMENT This notification is being made as a result of notifications to other government agencies. A sodium hypochlorite leak occurred on site at Limerick Generating station on 10/7/14, that had the potential to enter the environment. The leak has been isolated. A flow control valve in the U1 cooling tower chemical treatment system caused the leak. The sodium hypochlorite that leaked was deposited into the onsite Holding Pond. The Holding Pond was being discharged at the time of the leak in accordance with procedures to support normal plant operations. The leak was discovered at 2110 hours [EDT on 10/7/14] and isolated at 2115 hours. The Holding Pond discharge was secured at 2125 hours. Sampling of the Holding Pond confirmed the presence of sodium hypochlorite. Since the Holding Pond was being released at the time of the leak, there is a potential that greater than 67 gallons of sodium hypochlorite could have been released to the Schuylkill River. This report is being made due to the potential that a reportable quantity of sodium hypochlorite could have discharged to the Schuylkill River while the Holding Pond was releasing during the sodium hypochlorite leak. Evaluations are being performed to quantify this actual volume of sodium hypochlorite that was discharged as a result of the leak. The licensee has notified the NRC Resident Inspector and state and local authorities. Power Reactor Event Number: 50519 Facility: ARKANSAS NUCLEAR Region: 4 State: AR Unit: [ ] [2] POTENTIAL FIRE INDUCED CABLE FAILURE IN MULTIPLE FIRE ZONES INPO-IER-L4-14-33 (Direct Current Circuits Challenge Appendix R Fire Analysis) was reviewed to determine applicability to ANO Unit 1 & 2. It was determined that 2P-21, Turbine Generator Emergency Seal Oil Pump, control cables are not fused and are routed through multiple fire zones containing safe shutdown equipment. A potential fire induced cable failure in any of these fire zones could result in a secondary fire or damage adjacent cables along the path of the unprotected cable. The concern is that under fire safe shutdown conditions, it is postulated that a fire in one zone can cause short circuits potentially resulting in secondary fires or cable failures in other fire zones where the cables are routed. The secondary fires or cable failures are outside the assumptions of the 10 CFR 50 Appendix R Safe Shutdown Analysis. This condition is reportable as an 8-hour ENS report in accordance with 10 CFR 50.72(b)(3)(ii)(B) as an unanalyzed condition. Compensatory measures (fire watches) have been implemented for affected zones of the plant. The NRC Resident Inspector has been notified. Power Reactor Event Number: 50520 Facility: HARRIS Region: 2 State: NC Unit: [1] POTENTIAL LEAK FROM A PIPE COULD RESULT IN DAMAGE TO BOTH TRAINS OF ELECTRICAL POWER SYSTEMS This is a non-emergency notification. At approximately 10:40 AM on October 8, 2014, with the Harris Nuclear Plant operating at 100% power, a condition was discovered where a potential leak from a pipe supplying water to the fire suppression system in the diesel fuel oil storage tank building could result in damage to equipment in both trains of the onsite electrical power system. Neither the leak from the piping nor the damage to equipment actually occurred, so there are no actual safety consequences and no impact to public health and safety or the environment due to this condition. The condition was discovered during a Harris staff evaluation in the corrective action program. The condition will be fully investigated, including the extent of condition, and corrective actions taken to resolve the issue. Compensatory actions have been taken as interim actions to ensure safety systems are not impacted by the potential pipe leak. This event is reportable per 10 CFR 50.72(b)(3)(v). The NRC Resident Inspector has been notified. And other reportable events..... nrc.gov/reading-rm/doc-collections/event-status/event/en.html
Posted on: Thu, 09 Oct 2014 13:25:37 +0000

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