ENS Event | |
|---|---|
07:00 Sep 21, 2015 | |
| Title | Agreement State Report - Damaged Source Housing |
| Event Description | The following report was received from the State of California via email:
On Sept. 21, 2015, [the] RSO [Radiation Safety Officer for] ExxonMobil contacted Los Angeles County Radiation Management regarding an equipment malfunction to one of the two sources in Vessel #5C31, found during routine maintenance. [Source information]; cesium-137, Model 7063 K-ray; SN: 29456B; 500 milliCuries. Per [the RSO], the source housing was damaged and was left in its normal operating position. Using a Ludlum Model 3, 44-6 beta gamma probe, the background radiation was measured at approx. 0.02 mR/hr and the radiation rate at 1 meter from the source is 0.06 mR/hr. The service company has been contacted and repair/replacement will be performed as soon as possible. California Report 5010#: 092115
The following information was excerpted from a updated report received from the State of California via email: The shutter was stuck in the open position as used during its normal operating position. Using a Ludlum Model 3, 44-6 beta gamma probe, the background radiation was measured at approx. 0.02 mR/hr and the dose rate at 1 meter in areas outside of the vessel that could be occupied is approx. 0.06 mR/hr. The dose rate obtained in the path of the beam after passing thru two vessel walls is approx. 0.6 mR/hr. The vessel walls are 1 inch thick steel and the vessel diameter is approximately 8 feet. Notified R4DO (Pick) and NMSS_Events_Notification via email. |
| Where | |
|---|---|
| Exxonmobil Oil Corporation Torrance, California (NRC Region 4) | |
| License number: | 0113-19 |
| Organization: | California Radiation Control Prgm |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+32.05 h1.335 days <br />0.191 weeks <br />0.0439 months <br />) | |
| Opened: | Joji Ortego 15:03 Sep 22, 2015 |
| NRC Officer: | John Shoemaker |
| Last Updated: | Sep 23, 2015 |
| 51416 - NRC Website | |
Exxonmobil Oil Corporation with Agreement State | |
WEEKMONTHYEARENS 531002017-11-28T06:00:00028 November 2017 06:00:00
[Table view]Agreement State Agreement State Report - Two Nuclear Gauges Involved in Fire ENS 514162015-09-21T07:00:00021 September 2015 07:00:00 Agreement State Agreement State Report - Damaged Source Housing 2017-11-28T06:00:00 | |