ENS 40908
ENS Event | |
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16:10 Jul 29, 2004 | |
Title | Offsite Notification Due to Raw Sewage Discharge to Lake Ontario |
Event Description | A report was received in the Unit 2 Control Room by Site personnel that raw sewage appeared to be seeping from a manhole inside the protected area. The Fire Department and Environmental Department were dispatched to the area. It was reported back to the Unit 2 Control Room that raw sewage was seeping from the manhole and filling nearby ditch and flowing to a storm sewer.
Due to the leakage, Nine Mile Point entered their HAZMAT response procedure. Initial investigation for the sewage release found the sewage lift station pumps' control switch in the "OFF" position preventing the pumps from operating. The lift station pumps were restarted and the discharge from the manhole stopped. Lift station pumps continue to function properly and cleanup efforts are underway. Investigation is underway on why the lift station pump control switches were in the off position. Based upon initial calculations, it was determined approximately 3000 gallons of raw sewage was released from manhole to a nearby storm sewer which discharges to Lake Ontario. Nine Mile Point has notified the Oswego County Department of Health and New York State Department of Environmental Conservation. No hazards exist to offsite personnel and no wildlife has been adversely affected. The Licensee notified the NRC Resident Inspector, Local and State agencies.
The licensee is retracting this report based on the following: Subsequent investigation has determined that approximately 400 gallons of raw sewage was released into the storm drainage ditch. There was no active flow in the storm drainage ditch at the time of the event. Samples indicate that the raw sewage did not reach the lake. The event was reclassified as a State Pollutant Discharge Elimination System Permit Upset with minor impact to the environment. Therefore, the event notification from July 29, 2004 is retracted. The licensee informed the NRC Resident Inspector. Notified R1DO (Cobey). |
Where | |
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Nine Mile Point New York (NRC Region 1) | |
Reporting | |
10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
Time - Person (Reporting Time:+-0.4 h-0.0167 days <br />-0.00238 weeks <br />-5.4792e-4 months <br />) | |
Opened: | Rager Orzell 15:46 Jul 29, 2004 |
NRC Officer: | Chauncey Gould |
Last Updated: | Aug 27, 2004 |
40908 - NRC Website
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Unit 2 | |
---|---|
Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
WEEKMONTHYEARENS 573342024-09-23T11:20:00023 September 2024 11:20:00
[Table view]10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation, 10 CFR 50.72(b)(2)(iv)(A), System Actuation - ECCS Discharge Automatic Reactor Scram Due Turbine Trip ENS 553632021-07-19T18:58:00019 July 2021 18:58:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Onsite Medical Emergency ENS 518962016-05-01T12:47:0001 May 2016 12:47:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Onsite Fatality Not Related to Work ENS 517232016-02-10T07:47:00010 February 2016 07:47:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Actuation of One Emergency Siren ENS 503902014-08-21T12:50:00021 August 2014 12:50:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Actuation of One Emergency Siren ENS 489292013-04-16T13:14:00016 April 2013 13:14:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Emergency Siren Activation Due to Personnel Error ENS 481872012-08-14T14:06:00014 August 2012 14:06:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to State and Local Agencies Concerning Tritium Found in Groundwater Inleakage ENS 481052012-07-13T21:40:00013 July 2012 21:40:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification of Emergency Siren Activation ENS 471272011-08-05T23:32:0005 August 2011 23:32:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Inadvertent Emergency Notification Siren Actuation ENS 466582011-03-06T04:15:0006 March 2011 04:15:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Spurious Siren Activation ENS 463852010-11-02T00:04:0002 November 2010 00:04:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Oil Spill ENS 462822010-09-27T12:48:00027 September 2010 12:48:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - Loss of One Emergency Response Siren ENS 436732007-09-28T17:10:00028 September 2007 17:10:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Emergency Siren Activated Inadvertently During a Thunderstorm ENS 409082004-07-29T16:10:00029 July 2004 16:10:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Raw Sewage Discharge to Lake Ontario ENS 406242004-03-29T22:22:00029 March 2004 22:22:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification of a Fatality 2024-09-23T11:20:00 | |