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| Entered date | Event description | |
|---|---|---|
| ENS 50177 | 6 June 2014 15:13:00 | At approximately 11:27 AM EDT on June 6, 2014, Duke Energy personnel notified the North Carolina Department of Environment and Natural Resources of a spill of treated domestic waste water. The waste water was released through a break in the discharge line from the waste water facility to the permitted discharge outfall. The treated waste water entered the plant's storm drain system. The release has been stopped and the line repaired. An investigation is in progress to determine the cause and any additional corrective actions. There is no impact to public health and safety or the environment due to this incident. This event is reportable per 10 CFR 50.72(b)(2)(xi), an event related to protection of the environment for which a notification to other government agencies has been made. The NRC Resident Inspector has been notified. |
| ENS 45838 | 14 April 2010 15:49:00 | This 60-day telephone notification is being made under reporting requirements specified by 10 CFR 50.73(a)(2)(iv)(A) and 10 CFR 50.73(a)(1). On 2/16/10 at 1122 EST, following maintenance activities on 'B' Emergency Safeguards Sequencer, Clearance Order 213623, was in the process of being lifted when an automatic start of 'B' Motor Driven Auxiliary Feedwater (MDAFW) pump occurred. Water flowed to all three Steam Generators resulting in an increase of reactor power by 0.1%. Isolation of Steam Generator Blowdown and Blowdown Sampling also occurred. The actuation occurred during work associated with replacement of relay 2-55/1163 which was installed incorrectly in the "B" Sequencer cabinet. At the time of the event, all Steam Generator levels were normal. No actual condition existed that would require an automatic start of the "B" MDAFW pump and therefore this event has been classified as an invalid actuation. All equipment operated properly. The 'B' MDAFW pump was secured by operations at 1123 EST. This invalid actuation was entered into the corrective action program as (Harris Nuclear Condition Report) NCR 381672. The safety significance of this event is considered to be minimal. The 'B' MDAFW pump started and operated normally and the 'A' MDAFW and Turbine Driven Auxiliary Feedwater (TDAFW) pumps were available. Immediate corrective actions were to secure the "B" MDAFW pump and restore Steam Generator Blowdown and Sampling. The licensee has notified the NRC Resident Inspector. |