ENS 45860
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ENS Event | |
|---|---|
18:03 Apr 20, 2010 | |
| Title | Offsite Notification - Sodium Hydroxide Released Into Berm |
| Event Description | At about 0755 (PDT) on April 20, 2010, approximately 200 gallons of sodium hydroxide (caustic) was released into the SONGS Caustic Skid Berm. The release was fully contained within the bermed area and there was no release to the environment. The release is believed to have occurred from a Unit 2 caustic pump pressure safety valve (PSV) during the performance of condensate polishing demineralizer regeneration. The release has been secured and SONGS personnel have pumped the caustic to poly drums.
Between 1103 and 1125 (PDT) SONGS notified the San Diego Department of Environmental Health (DEH), the State of California Emergency Management Agency (CalEMA), and the National Response Center of the contained non-radioactive caustic spill within the protected area of the facility. Therefore, Southern California Edison is reporting this occurrence to the Nuclear Regulatory Commission in accordance with 10 CFR 50.72(b)(2)(xi). SONGS Unit 2 is in Mode 1 at approximately 98% power and Unit 3 is in Mode 1 at approximately 50% power. The NRC Resident Inspector will be notified of this occurrence and will be provided a copy of this report. Additional information regarding this event will be provided to one of the Resident Inspectors at the site. |
| Where | |
|---|---|
San Onofre  California (NRC Region 4) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
| Time - Person (Reporting Time:+0.6 h0.025 days <br />0.00357 weeks <br />8.2188e-4 months <br />) | |
| Opened: | Clay Williams 18:39 Apr 20, 2010 |
| NRC Officer: | Charles Teal |
| Last Updated: | Apr 20, 2010 |
| 45860 - NRC Website | |
Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (98 %) |
| After | Power Operation (98 %) |
Unit 3 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (50 %) |
| After | Power Operation (50 %) |
WEEKMONTHYEARENS 563762023-02-21T22:02:00021 February 2023 22:02:00
[Table view]10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to Local Agency ENS 546122020-03-26T03:00:00026 March 2020 03:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification for Sewage Release ENS 541792019-07-23T21:05:00023 July 2019 21:05:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification ENS 535802018-09-05T07:00:0005 September 2018 07:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Notification to a Government Agency for Assistance Relative to a Medical Emergency ENS 522522016-09-19T19:30:00019 September 2016 19:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to San Diego Regional Water Quality Control Board ENS 510182015-04-27T22:27:00027 April 2015 22:27:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to Local Agency ENS 504702014-09-18T19:35:00018 September 2014 19:35:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - Failure to Submit Required Semi-Annual and Annual Samples and Reports Per Npdes ENS 501152014-05-14T21:54:00014 May 2014 21:54:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Press Release Concerning Wildfire Near the Facility ENS 489132013-04-11T06:26:00011 April 2013 06:26:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Fbi Notified Due to Degraded Security Radio Communications ENS 484282012-10-21T15:05:00021 October 2012 15:05:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Hydrogen Leakage ENS 483442012-09-26T00:07:00026 September 2012 00:07:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to a Freon Leak from Building Air Conditioner ENS 474812011-11-28T14:00:00028 November 2011 14:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification of Unplanned Acidic Solution Discharge ENS 474012011-11-01T21:50:0001 November 2011 21:50:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Alert Declared Due to an Ammonia Leak ENS 472892011-09-23T00:30:00023 September 2011 00:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to County Agency Due to Inadvertent Wastewater Discharge ENS 469042011-05-29T16:57:00029 May 2011 16:57:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to an On-Site Sulfuric Acid Spill ENS 467552011-04-14T19:35:00014 April 2011 19:35:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to State of California Due to Hydrogen Leak ENS 466212011-02-17T23:11:00017 February 2011 23:11:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Hydrazine Spill Contained Onsite ENS 466162011-02-15T19:40:00015 February 2011 19:40:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Off-Site Notification of Sewage Spill Contained On-Site (<100 Gallons) ENS 466122011-02-12T00:15:00012 February 2011 00:15:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification of a Sewage Spill Contained Onsite ENS 465502011-01-18T17:45:00018 January 2011 17:45:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Siren Growl Heard Offsite ENS 464992010-12-21T04:20:00021 December 2010 04:20:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Access to Primary Emergency Operations Facility Not Possible Due to Flooding ENS 463952010-11-04T22:04:0004 November 2010 22:04:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Portal Radiation Monitor Alarm on a Scrap Shipment ENS 461332010-07-28T16:45:00028 July 2010 16:45:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification of a Sulfuric Acid Spill ENS 460472010-06-25T21:27:00025 June 2010 21:27:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Hazmat Spill Requiring Offsite Notifications ENS 459432010-05-21T20:20:00021 May 2010 20:20:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to California Department of Public Health ENS 458602010-04-20T18:03:00020 April 2010 18:03:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - Sodium Hydroxide Released Into Berm ENS 456842010-02-08T08:10:0008 February 2010 08:10:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Emergency Siren Spurious Actuation ENS 456362010-01-19T12:30:00019 January 2010 12:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Emergency Siren Spurious Actuation ENS 453282009-09-04T00:30:0004 September 2009 00:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to Los Angeles County Public Health Radiation Management Division ENS 452742009-08-19T18:50:00019 August 2009 18:50:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification for Inadvertant Actuation of Sirens for 10 Seconds ENS 449852009-04-12T11:30:00012 April 2009 11:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Sulfuric Acid Spill Into Burm ENS 449832009-04-10T16:00:00010 April 2009 16:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Sulfuric Acid Overflow ENS 443742008-07-29T21:00:00029 July 2008 21:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Press Release Concerning Impact of Earthquake on Southern California Edison Assets ENS 439332008-01-25T17:00:00025 January 2008 17:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Inadvertent Actuation of Emergency Siren ENS 426442006-06-14T05:05:00014 June 2006 05:05:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - Auto Accident Fatality ENS 423702006-02-23T12:00:00023 February 2006 12:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Minor Leakage of Wastewater from Transport Truck ENS 406192004-03-28T21:49:00028 March 2004 21:49:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification at San Ofre 2 and 3 Due to Inadvertent Weapon Discharge 2023-02-21T22:02:00 | |
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