ENS 46395
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ENS Event | |
|---|---|
22:04 Nov 4, 2010 | |
| Title | Portal Radiation Monitor Alarm on a Scrap Shipment |
| Event Description | On November 4, 2010, at approximately 1504 PDT, San Onofre Nuclear Generating Station (SONGS) was notified that scrap circuit breakers salvaged from the SONGS warehouse had alarmed a portal radiation monitor at a metal recycling facility in Los Angeles County. The monitor indicated a reading approximately 40% above background levels. Naturally occurring isotopes in the circuit breakers are suspected to have alarmed the portal monitor. The metal recycling vendor (Alpert and Alpert) called the Los Angeles branch of the California Department of Health Services, Radiologic Health Branch to obtain a special permit authorizing the return shipment to SCE.
SCE is reporting this event in accordance with 10CFR50.72(b)(2)(xi). At the time of this report, Unit 2 was operating at 100% power and Unit 3 is defueled. The licensee notified the NRC Resident Inspector.
On November 5, 2010, employees of the San Onofre staff disassembled the scrap circuit breakers that had been sent from the San Onofre Warehouse to the Alpert and Alpert salvage yard on November 4. These high voltage circuit breakers contain arc chutes consisting of large ceramic plates that contain naturally occurring radioactive material. All ceramic materials were removed. Health Physics technicians then re-surveyed the circuit breaker casings by direct and indirect survey and verified that they did not contain any detectable levels of radioactive material. Indirect survey of the ceramic material demonstrated that they had no detectable levels of removable radioactive material. The California Department of Health Services, Radiologic Health Branch will be notified of these results. The licensee has notified the NRC Resident Inspector. R4DO (Howell) and FSME (Chang) notified. |
| 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:+0.3 h0.0125 days <br />0.00179 weeks <br />4.1094e-4 months <br />) | |
| Opened: | John Custer 22:22 Nov 4, 2010 |
| NRC Officer: | Pete Snyder |
| Last Updated: | Nov 6, 2010 |
| 46395 - NRC Website | |
Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (99 %) |
| After | Power Operation (99 %) |
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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