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| Start date | Reporting criterion | Title | Event description | System | LER | |
|---|---|---|---|---|---|---|
| ENS 56559 | 5 June 2023 22:23:00 | 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | Offsite Notification | The following information was provided by the licensee via email: At 1823 EDT, the shift manager was notified that one siren, part of the public notification system (siren number 10), spuriously activated for approximately one minute. Monroe County agencies were notified regarding the actuation. The cause of the actuation is being investigated and the ability for the siren to actuate has been removed until the cause is determined. There is no impact to the emergency planning zone. This event is a four-hour, non-emergency report for notification to other government agencies in accordance with 10 CFR 50.72(b)(2)(xi). | ||
| ENS 53666 | 14 October 2018 04:00:00 | 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | Offsite Notification Due to a Sodium Hypochlorite Leak | Notified New York State Department of Environmental Conservation for draining of sodium hypochlorite (12-15% by weight) from the storage tank into it's engineered secondary containment of approximately 1300 gallons. Reportable per regulation 6 NYCRR Part 597. The NRC Resident Inspector will be notified by the licensee. Licensee investigation into the cause of the leak is ongoing. | Secondary containment | |
| ENS 53124 | 17 December 2017 12:55:00 | 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | Offsite Notification Following Sulfric Acid Spill | Ginna notified New York State Department of Environmental Conservation of a sulfuric acid spill of approximately 270 gallons in the AVT, All Volatile Treatment, building. Ginna is currently contacting offsite support for hazardous chemical cleanup. The spilled sulfuric acid is currently contained within the secondary containment structure associated with the sulfuric acid tank. There is no release to the environment. There is no impact to habitability in the AVT building at this time. The licensee notified the NRC Resident Inspector. | Secondary containment | |
| ENS 51307 | 11 August 2015 03:32:00 | 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | Inadvertent Siren Activation | At approximately 2332 EDT on August 10, 2015, the Ginna Control Room was notified of an inadvertent siren activation by the Monroe County Emergency Center. It is unclear at this time why the siren inadvertently activated. Company personnel are addressing the issue with the siren. The licensee notified the NRC Resident Inspector. The siren activated for approximately 1 minute. The licensee will remove the siren from service until the cause of the inadvertent actuation can be corrected. The licensee has a sufficient number of sirens to allow this siren to be removed from service. | ||
| ENS 51225 | 13 July 2015 16:10:00 | 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | Inadvertent Activation of Emergency Siren by Vendor | At approximately 1210 (EDT) on July 13, 2015 during conduct of vendor maintenance, a contract maintenance worker inadvertently activated siren 71. The licensee was notified of the siren activation by the vendor at 1211 (EDT). Wayne County was notified of the siren activation by the vendor at 1212 (EDT). One of the 96 sirens in the 10-mile Emergency Planning Zone (EPZ) were activated for less than one minute. No press release is planned by Exelon. The NRC Resident Inspector has been notified. | ||
| ENS 47137 | 9 August 2011 16:30:00 | 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | Inadvertent Actuation of an Emergency Siren | (There was an) inadvertent actuation of siren 46 due to water intrusion into the control box. The door was knocked open by a falling tree branch. Power to the siren has been isolated to prevent re-occurrence. Repair is scheduled for August 10, 2011 The licensee notified both Wayne and Monroe counties and the NRC Resident Inspector. | ||
| ENS 46775 | 21 April 2011 21:00:00 | 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | Potential Inadvertant Activation of One Emergency Siren | On April 20, 2011, several hours after a severe lightning storm in the early morning hours, RE Ginna Nuclear Power Plant received a report that a siren may have activated. There was no specific location provided in the report. A review of the siren computer history showed no indication of any siren activation during that time frame. During the daily silent test of the siren system, one siren was determined to have failed due to loss of its AC power. During an inspection of the siren on April 21, 2011, it was reported that the siren appeared to have been struck by lightning. A number of electronic components in the siren had to be replaced and as a result the technicians were unable to determine if the siren had activated. As such. there is a potential that the siren may have been the source of the initial report. The siren has been tested and returned to service. The NRC Resident Inspector was notified by the licensee. The licensee notified the Public Utilities Commission and Wayne and Monroe Counties. | ||
| ENS 46398 | 5 November 2010 16:45:00 | 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | Small Petroleum Spill within Site Property | This communication is intended to serve as a notification that the New York State Department of Environmental Conservation has been informed of a petroleum spill within the site property. A slight sheen and odor that indicated a petroleum product has been released to a local creek within the owner controlled property. A petroleum spill from an unknown vehicle was discovered along the length of an entrance driveway and in a parking lot, which due to the local rain entered the storm water system. Due to the area affected along the driveway spill location, Ginna's spill remediation vendor has been contacted to assist with the cleanup. Petroleum absorbent booms have been placed in the creek and along driveway runoff locations to minimize any further introduction of the spilled product and to further protect the waterway. The licensee notified the NRC Resident Inspector. | ||
| ENS 46285 | 28 September 2010 15:30:00 | 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | Offsite Notification - Faulty Alarm Actuation | At 1130 hrs. on September 28, 2010, the site was notified by Wayne County, New York of a single siren activation at 0620 hrs. for approximately 2 minutes. The single siren activation was not related to any condition or event at Ginna Station. The NRC Resident Inspector has been informed of the activation. A maintenance crew is currently investigating the cause of the spurious activation. | ||
| ENS 45635 | 19 January 2010 10:53:00 | 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | Offsite Fire Department Assistance Required for a Failed Residential Transformer | At 0553 hours on 01/19/2010, plant personnel noted smoke emanating from a residential transformer within the Protected Area which was not affecting plant operation. The on-site fire brigade was dispatched to investigate. Rochester Gas and Electric Corporation (RG&E) was notified to isolate the off-site power supply to the transformer. While awaiting the arrival of RG&E personnel, the on-site Fire Brigade noted that the transformer smoke was worsening along with increased noises from the transformer. The Ontario Fire Department was notified at 0715 hours to provide off site assistance. Ginna remains at 100% power, normal operating temperature of 574 degrees, and normal operating pressure of 2235 psig. The transformer supplies power to office trailers. The licensee notified the state and the NRC Resident Inspector. | ||
| ENS 45510 | 19 November 2009 18:00:00 | 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | Offsite Notification Due to Low Level Radioactive Spill | The New York State Department of Environmental Conservation and other State and Local officials were notified today, November 19, 2009, that there had been a spill of low level radioactive material at an excavation site at the facility. Workers were conducting planned modification activities, replacing a section of piping, when sediment fell from the pipe to the ground and localized water at the excavation site. Samples of the localized water in the excavation after the sediment had fallen in exceeded the limit of the site procedure for notifying State and Local officials for a groundwater spill. No elevated levels have been detected in the nearest plant monitoring well. Therefore, we have no indications that there has been a release beyond the site from this source. Cleanup activities are currently in progress. The licensee notified the NRC Resident Inspector. The section of piping being replaced was between the plant storm drain system and the discharge canal. The radioactive material was identified as Cs-137 but was not quantified at the time of this report. | ||
| ENS 44108 | 31 March 2008 12:00:00 | 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | Offsite Notification Due to Minor Gas Spill | At or about 0800 on 3/31/08 it was reported that a petroleum sheen was observed in the parking lot headed for the creek. Upon investigation from the responding spill team and Maintenance, the source of the sheen was found to be coming from an employee's vehicle. It was a very minor drip of petroleum (less than 1/2 cup) that was pushed by the rain to the soil and storm catch basin. A boom was put in place to avoid the sheen from entering the creek. The parking lot and soil were cleaned and a catch device was placed under the vehicle. New York State Department of Environmental Conservation (DEC) - Avon Spill Unit- was notified and assigned spill number 0751599 to the event. No further action is required. The licensee has notified the NRC Resident Inspector. | ||
| ENS 44025 | 1 March 2008 18:15:00 | 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | Offsite Notification Due to Steam Leak Affecting Asbestos Lagging | An emergency asbestos project notification was made to NYS (New York State) Department of Labor in accordance with NYS Code Rule 56. The amount of damaged insulation has been identified as a minor project. The emergency asbestos project is a result of a Moisture Separator Reheater 1A level control system steam leak, which occurred at 0535 3/1/08. No visible damage to permanent structures or equipment, beyond the steam leak, is evident. A cap blew off a level transmitter which wetted and dislodged the surrounding asbestos insulation which subsequently fell to the floor below. The steam leak has been isolated. There were no injuries or adverse impacts on plant operations. The licensee will notify the NRC Resident Inspector. | ||
| ENS 43781 | 14 November 2007 17:20:00 | 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | Offsite Notification of Chemical Spill Onsite | During Construction Activities for a new Security Training facility, an earth mover overturned resulting in a spill of diesel fuel, hydraulic fluid, and engine coolant. The magnitude of the spill is not positively known at this time, but is believed to be less than 50 gallons. The event occurred outside the Protected Area. No personnel were injured during the event. The New York State Department of Environment Conservation (NY DEC) has been notified per plant procedures (Avon Office DEC Spill #75111)." At the time of this report, the earth mover was still overturned and the licensee is taking actions to resolve. No media interest is anticipated as a result of this incident. The licensee notified the NRC Resident Inspector. | ||
| ENS 43182 | 23 February 2007 18:36:00 | 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | Small Natural Gas Leak at Gas Meter | On Friday 2/23/07 at approximately 13:36 EST the Ontario, NY Volunteer Fire Department arrived on site at the Ginna Training Center in response to a report of natural gas leak The report was made to the local gas utility by an employee of the facility. This report was not made through the normal channel of control room communications. Per the local gas utility response procedure, they notify the 911 Emergency call center, if their response time is greater than 30 minutes. The local television media responded to the site based on the 911 radio transmission. The Fire Department left site at 13:57 hours. The gas utility found a minor leak on the gas meter outside the building. The licensee notified the NRC Resident Inspector and is expected to discuss this incident with the media. | ||
| ENS 41876 | 28 July 2005 00:00:00 | 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | Offsite Notification Concerning Power Reduction to Take Plant Offline | The New York State Public Service Commission was notified that Ginna is coming offline due to chemistry concerns. EPRI level 3 guidelines (for sodium and chloride levels) were exceeded during line-up of the blow down system during maintenance. Required action is to reduce power to less than 5% reactor power and perform system cleanup. The licensee notified the NRC Resident Inspector. | ||
| ENS 41105 | 8 October 2004 18:10:00 | 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | Offiste Notification to Fire Department Due to Natural Gas Line Break | A natural gas pipeline was broken by a backhoe while digging at a location between 300 to 400 feet outside the protected area fence southwest of the plant. The licensee made offsite notifications to local fire departments and Rochester Gas and Electric which have responded to the scene and are in the process of isolating the line break. The broken gas line is 2.5 inches in diameter and the licensee does not consider the break a threat to the plant and will continue normal operation. The licensee is monitoring the situation and is monitoring for excessive natural gas concentrations. The licensee has notified the NRC resident inspector. | ||
| ENS 40360 | 28 November 2003 04:30:00 | 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | Plant Had an Inadvertent Siren Activation | At 2330 11/27/2003 RG&E Energy Operations Center Notified the Control Room that an Emergency Notification Siren on Arbor Road was going off. The Siren System Controller was checked and verified that the siren had inadvertently activated. The Siren System Controller was used to reset and then check that the siren was operable. The siren was reset by 2345 11/27/2003. The 4 hour notification was inadvertently missed by the midnight shift. The licensee will be investigating the cause of this inadvertent siren activation. The licensee notified the NRC Resident Inspector.
At 2330 on November 27, 2003, RG&E was notified that an Emergency Notification Siren on Arbor Road appeared to have inadvertently activated. However, since that time, RG&E has performed an extensive evaluation and determined that there is no indication that the siren in the vicinity had been activated. This event has been discussed with the resident inspector and he has been informed that the event will be retracted. Notified R1DO (Aniello Della Greca) |