Semantic search
| Entered date | Event description | |
|---|---|---|
| ENS 47134 | 6 August 2011 22:25:00 | The licensee notified the state of California that on 8/5/2011 they had discovered one of its tritium exit signs missing. The licensee is investigating. The sign contained approximately 20 curies of H-3.
Following a licensee review of inventory, the missing tritium exit sign was discovered. Therefore, the event is being retracted. Notified the R4DO (Haire), FSME EO(Chang), ILTAB via email and Mexico via fax. Sources that are "Less than IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. Some of these sources, such as moisture density gauges or thickness gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf This source is not amongst those sources or devices identified by the IAEA Code of Conduct for the Safety & Security of Radioactive Sources to be of concern from a radiological standpoint. Therefore is it being categorized as a less than Category 3 source |
| ENS 42823 | 31 August 2006 20:29:00 | The State provided the following information via email: A truck carrying waste materials from Adams Steel in Anaheim set off the radiation alarm at the Simi Valley Landfill on 8/29/06. The landfill monitor reading was approximately 600K (bkg 4K). LA County (DELETED) responded to the landfill on 8/30/06 and identified the nuclide as Cs-137, with radiation levels of 13 mR/hr on the side of the truck, 1.2 mR/hr at 3 feet from the side of the truck, and background in the cab of truck. Based on these radiation readings, it appears the source is located approximately 1 foot inside of the truck and is approximately 10 milliCi in activity. A DOT exemption form was completed by LA County and the truck returned to the Adams Steel yard late on 8/30/06, and parked in a remote location. LAC completed their own 5010 (082906) on the response to Simi Valley. RHB responded to Adams Steel on 8/31/06, and located an approximate 7 milliCi Cs-137 bare source, located approximately 3 feet from the top of the trailer load and approximately 1 foot in from the side of the trailer. The source was taken by RHB to hold until Adams Steel can arrange for disposal of the source. California incident #083006 THIS MATERIAL EVENT CONTAINS A "LESS THAN CAT 3" LEVEL OF RADIOACTIVE MATERIAL Sources that are "Less than IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. Some of these sources, such as moisture density gauges or thickness gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks. |
| ENS 41388 | 8 February 2005 20:36:00 | The California Radiation Health Bureau reported that a radiopharmaceutical carrier had lost 112 milliCuries of Thallium-201. The shipment of thallium was picked up at the airport in Burbank, CA and was in transport to Loma Linda, CA when it was discovered missing. The carrier had made two stops after picking up the product in Burbank, CA. The carrier reported that when they left Placentia, CA, (the second stop) their truck tailgate was closed. When they reached Loma Linda, CA, they discovered that the tailgate was open. It is believed that the package with the thallium fell out on the interstate between Placentia and Loma Linda. The carrier searched the route twice without success. The State of California did notify the California Highway Patrol of the missing package. California incident number is 020805. |
| ENS 41367 | 3 February 2005 15:28:00 | At 1205 on February 2, 2005, the licensee called the Brea office to report that one of their moisture density gauges had been run over by construction equipment at 1145 that morning. The gauge was damaged to the extent that they were unable to retract the source rod back into the shielded position (CPN, model 3, # M22054410 - 10 mCi Cs-137 and 50 mCi Am:Be). The incident happened at a construction site located at 3208 Quarter Horse Drive in Yorba Linda at the water reservoir. The outer gauge casing was in pieces, the rod handle was broken and the source rod was extended into the ground. The maximum dose rate with the source rod extended into the ground was 2 mrem/hr at contact measured with a Bicron microrem instrument. The dose rate when the source rod was extracted from the ground was approximately 30 mrem/hr at one foot from the rod tip. The Cs-137 end of the gauge source rod was placed in a lead pig, which was taped into place to keep the Cs-137 source shielded. The unit remains were placed in a plastic bag which was then placed into the transportation case. The device was transported to the local CPN service representative - Maurer Technical Services. Maurer Technical Services stated the sources appeared to be intact, and they took a wipe for a leak test. The wipe was sent out for counting. Alpha and beta surveys at the accident scene did not detect any contamination. Two wipes of the source housings were collected, which were counted in the Brea office on a Ludlum 3030 alpha-beta counter the next day. No contamination was detected on these two wipes. The incident apparently occurred when the construction equipment, a front end loader, changed direction to avoid a truck, and there wasn't time for the gauge operator, who was in a safe location about 15 feet from the gauge, to signal the front end loader to stop. |
| ENS 41279 | 22 December 2004 13:53:00 | The following information was received via Email: Licensee called to report one of their Troxler 3430 gauges (serial number 23691- 8 mCi Cs-137 / 40 mCi Am 241/Be) had been stolen along with the vehicle it was in. The gauge was reported to be locked in the enclosed SUV which was parked outside of the Riverside office this morning (12/22/04). The gauge user came out to his vehicle at about 0445, shortly after transferring the gauge from the storage facility to his vehicle, and discovered the vehicle had been stolen. A report was filed with the Riverside Police Department (P304357039).
This gauge was recovered approximately noon yesterday (12/22/04), the same day it was stolen, when the stolen truck was recovered. The gauge was still in its transportation case in the truck and apparently had not been accessed. Notified NMSS (T Essig), R4DO (Spitzberg), TAS (J Foster) (email), and faxed to Mexico. |