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Event Notification Report for August 4, 2015

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
08/03/2015 - 08/04/2015

** EVENT NUMBERS **


51258 51261

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Agreement State Event Number: 51258
Rep Org: TEXAS DEPT OF STATE HEALTH SERVICES
Licensee: TEXAS QA SERVICES, INC.
Region: 4
City: GRAND PRAIRIE State: TX
County:
License #: L04601
Agreement: Y
Docket:
NRC Notified By: ART TUCKER
HQ OPS Officer: HOWIE CROUCH
Notification Date: 07/24/2015
Notification Time: 11:50 [ET]
Event Date: 07/24/2015
Event Time: [CDT]
Last Update Date: 07/24/2015
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
HEATHER GEPFORD (R4DO)
NMSS_EVENTS_NOTIFIC (EMAI)

Event Text

TEXAS AGREEMENT STATE REPORT - UNABLE TO RETRACT RADIOGRAPHY CAMERA SOURCE

The following information was obtained from the State of Texas via email:

"On July 24, 2015, the Agency [Texas Department of State Health Services] was notified by the licensee's radiation safety officer (RSO) that one of his crews was unable to retract a 39 curie Iridium-192 source into QSA 880 D camera. The RSO stated the radiographers had completed their first shot of the day in a shooting bay and noted the lock on the camera did not trip when the source was retracted. The RSO stated the radiographers noted the dose rate where they were standing was 30 millirem per hour after they attempted to retract the source. The radiographers notified the RSO of the event. The RSO responded to their location. The RSO is authorized to recover disconnected sources.

"The RSO stated he recovered the source by disconnecting the source guide tube and shaking the source out of the guide tube and into a shield they have designed for this purpose. The RSO was able to connect the source pig tail to the drive cable and retract the source into the camera. The RSO stated he received 15 millirem during the source retrieval. No member of the general public received a dose as a result of this event. The RSO stated they cycled the source in and out of the camera several times without incident. The RSO stated he remained at the work site and monitored the radiographers for several shots and did not note any issues. The RSO is not sure at this time if a source disconnect or misconnect occurred. The RSO is continuing to investigate the event.

"Additional information will be provided as it is received in accordance with SA-300."

The event location was Wedge Measurements Systems located in Joshua, TX.

Texas Incident #: 1-9327

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Agreement State Event Number: 51261
Rep Org: ARIZONA RADIATION REGULATORY AGENCY
Licensee: TLS SYSTEMS, LLC
Region: 4
City: TUSCON State: AZ
County:
License #: AZ 10-086
Agreement: Y
Docket:
NRC Notified By: AUBREY V. GODWIN
HQ OPS Officer: HOWIE CROUCH
Notification Date: 07/24/2015
Notification Time: 17:24 [ET]
Event Date: 07/12/2015
Event Time: [MST]
Last Update Date: 07/24/2015
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
HEATHER GEPFORD (R4DO)
NMSS_EVENTS_NOTIFIC (EMAI)

This material event contains a "Less than Cat 3 " level of radioactive material.

Event Text

ARIZONA AGREEMENT STATE REPORT - MISSING TRITIUM LIGHT SOURCE

The following information was received from the State of Arizona via email:

"On July 22, 2015, the licensee reported that they lost one gaseous tritium light source on approximately July 12, 2015. The licensee was removing each source from its subsequent device in order to make disposal more efficient. The lost source was part of a TLS Model 42000 drogue light. The model 42000 drogue light consists of two 450 millicuries (November 1988 assay date) mb-Microtec Model T4376-1 gaseous tritium light sources mounted in a stainless steel assembly. The sources are held in place with silicone. To remove the sources from the drogue light, the silicone (containing two sources) is removed from the stainless steel housing. The silicone is then placed in solvent to soften it. Once the silicone is soft, the sources are removed with little effort and with little or no silicone adhering to the source.

"The sources were placed in the solvent on July 12, 2015 and the nonradioactive components of the assemblies, including the silicone, were discarded as regular trash on that date. The source removal and consolidation was completed for all legacy sources on July 22, 2015, at which time, a complete inventory was performed and one source was discovered to be missing. The missing tritium source has a current activity of 100 millicuries.

"The Agency [Arizona Radiation Regulatory Agency is continuing to investigate the event."

Arizona First Notice: 15-017

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. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf

Page Last Reviewed/Updated Tuesday, August 04, 2015
Tuesday, August 04, 2015