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Event Notification Report for July 16, 2018

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
7/13/2018 - 7/16/2018

** EVENT NUMBERS **


53488 53490 53492

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Agreement State Event Number: 53488
Rep Org: TEXAS DEPT OF STATE HEALTH SERVICES
Licensee: STANLEY
Region: 4
City: TULSA   State: OK
County:
License #: LOK-32187-0
Agreement: Y
Docket:
NRC Notified By: ART TUCKER
HQ OPS Officer: HOWIE CROUCH
Notification Date: 07/05/2018
Notification Time: 18:02 [ET]
Event Date: 07/03/2018
Event Time: 00:00 [CDT]
Last Update Date: 07/19/2018
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
GEOFFREY MILLER (R4DO)
KEVIN WILLIAMS (NMSS)
GRETCHEN RIVERA-CAPELLA (EMAIL)
PATRICIA MILLIGAN (EMAIL)

Event Text

TEXAS AGREEMENT STATE REPORT - POTENTIAL OVEREXPOSURE EVENT

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

"On July 5, 2018, the Agency [Texas Department of State Health Services] was notified by the licensee's [Stanley out of Tulsa, OK] consultant that an overexposure event may have occurred involving radiographers working in the state of Texas, under reciprocity, at a field site near Midland, Texas, but offered no actionable information. At 1620 hours [CDT], the consultant called back and stated that a crew was performing radiography in a pit using a 99.6 Curie iridium - 192 source. The individual who received the high exposure had been working in the dark room. He completed the task he was working on and exited the dark room and went straight to the pit. He picked up the collimator and started to move it while the source was still in the collimator. The other radiographers yelled at him and he dropped the source and left the pit.

"The consultant stated the calculations for the dose to the individual's hand provided by the licensee is 284 rem. The consultant stated the radiographer held the source for about 3 seconds and the dose calculation was based on no shielding. The consultant stated there is currently no apparent injury to the individual's hand. The consultant stated the licensee is contacting REAC/TS in Oak Ridge, Tennessee, for assistance. The licensee's radiation safety officer is conducting an investigation into the event. Additional information will be provided as it is received in accordance with SA-300."

Texas Incident #9592

* * * UPDATE FROM THE STATE OF OKLAHOMA TO HOWIE CROUCH ON 7/6/18 AT 1032 EDT * * *

The following information is excerpted from an email that was received from the state of Oklahoma:

Oklahoma DEQ [Department of Environmental Quality] Radiation Management was contacted by the radiation safety officer (RSO) of Stanley Inspection, License No.: OK-32187-01, after hours on 7/5/2018. Stanley Inspection, a radiography company, was working in Midland, TX under reciprocity, and one of the radiographers potentially overexposed his hand. Stanley Inspection was instructed by Texas to do medical monitoring for the radiographer, including bloodwork and photographs of his overexposed extremity.

Notified R4DO (Miller) and NMSS Events Notifications (email).

* * * UPDATE FROM IRENE CASARES TO DONG PARK ON 7/19/18 AT 1158 EDT * * *

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

"Stanley Inspection Services reported that a radiation overexposure may have occurred involving radiographers working in Texas, under reciprocity, at a field site on 7/3/2018 near Midland, Texas. Reported to NRC as update on July 19, 2018. After complete investigation and reenactment of the incident the following information was obtained and being provided as an update of the incident.

"On July 3, 2018, a radiographer working a temporary field site project under reciprocity (OK licensee in TX) with another crew had an incident. The radiographer was working in the dark room and was developing film. He completed this task and exited the darkroom. This was the last shot of the day in which this crew was working. It was the last image for this shot in which four images are taken for this weld of a 36 inch pipe at a time of 6.5 minutes each image. They were about to end the workday. It was at dusk and his assistant went to the front of the vehicle to get a flashlight while a member of the other crew showed up. The time of day was between 9 and 10 pm. When this person showed up, the radiographer was exiting the darkroom. These two radiographers both walked down into the pit to retrieve the film, when they were walking to the film, the assistant arrived at the back of the truck, stating that the source was still out and at that time the survey meter being carried by the other crew member (RDS-30, Mirion technologies) was alarming. The person carrying the survey meter was about 2-3 feet behind the first radiographer. The first radiographer had already put his fingers (index and middle) and thumb on the collimator for estimated 3 seconds as he was checking to ensure it had not moved from the mark/film while imaging. He explained that he heard the alarms from the survey and dosimetry meters and they both ran out of the pit. It was reenacted on 16 July to confirm how he placed his fingers on the collimator and estimated the time. The Delta 880, sn D15456, camera was loaded with, QSA, A424-9, 66225G, Ir-192, at an activity of 101.5 curies. The calculated dose to the hand for 3 seconds with a collimator made of tungsten rated at 4 HVL was 25.54 rem for the extremity dose. The initial whole body dose was estimated to be unshielded at 109 mrem. The radiographer had been wearing an electronic dosimeter (Tracerco) which was acting as an alarming rate meter and dosimeter. The film badge was processed with results of 18 mrem. And the dosimetry was reported to have read 24 mrem by the radiographer for that day's work. The dosimeter was sent for verification/accuracy checks. The radiographer had his blood drawn as instructed by REAC/TS and the RSO photographed his fingers/hands for 3 weeks. The radiographer stated he had no abnormal redness, tingling or sensations in the tissue of the hand. The supporting documents and reenactment support an estimated dose of 25.54 rem to the extremity and approximately 20 mrem to the whole body.

"The company is completing its documentation of the incident and will be providing its detailed report with corrective actions, another update will be forthcoming."

Notified R4DO (Young), INES (Milligan) and NMSS Events Notifications via email.

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Agreement State Event Number: 53490
Rep Org: CALIFORNIA RADIATION CONTROL PRGM
Licensee: YOUNGDAHL CONSULTING
Region: 4
City: EL DORADO HILLS   State: CA
County:
License #: 4482-09
Agreement: Y
Docket:
NRC Notified By: KENNETH FUREY
HQ OPS Officer: HOWIE CROUCH
Notification Date: 07/06/2018
Notification Time: 11:43 [ET]
Event Date: 07/06/2018
Event Time: 00:00 [PDT]
Last Update Date: 07/10/2018
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
GEOFFREY MILLER (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
ILTAB (EMAIL)
CNSNS (MEXICO) (FAX)
This material event contains a "Less than Cat 3" level of radioactive material.

Event Text

CALIFORNIA AGREEMENT STATE REPORT - STOLEN TROXLER MOISTURE DENSITY GAUGE

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

"[A Troxler] Moisture Density Gauge (Serial #18330) was stolen from a parked vehicle at a residence. An unknown subject cut a security cable then took the yellow box containing the device and associated equipment. The box was in the rear bed of a pickup truck. The police department has been notified and are enroute to investigate."

The Troxler contained an 8 mCi AmBe-241 source and a 48 mCi Cs-137 source.

California Report No.: 5010070618

* * * UPDATE ON 7/10/18 AT 1024 EDT FROM KENNETH FUREY TO BETHANY CECERE * * *

The following was received by email from the State of California:

"The Troxler 3440, serial #18330 reported stolen on July 6, 2018 was recovered by the Rancho Cordova Police Department on July 7, 2018 at 2000 PDT after it was dumped in the Walmart parking lot in Rancho Cordova. [A representative] of Youngdahl Consulting took possession of the gauge."

Notified R4DO (Pick), NMSS Events Notification, ILTAB, and CNSNS (Mexico) by email.

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

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Agreement State Event Number: 53492
Rep Org: LOUISIANA RADIATION PROTECTION DIV
Licensee: MISTRAS GROUP, INC
Region: 4
City: SABINE PASS   State: LA
County:
License #: LA-10986-L01
Agreement: Y
Docket:
NRC Notified By: RUSSELL CLARK
HQ OPS Officer: DAVID AIRD
Notification Date: 07/06/2018
Notification Time: 16:32 [ET]
Event Date: 05/10/2018
Event Time: 00:00 [CDT]
Last Update Date: 07/06/2018
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
GEOFFREY MILLER (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)

Event Text

LOUISIANA AGREEMENT STATE REPORT - POTENTIAL OVEREXPOSURE

The following is an excerpt from a report received from the state of Louisiana via email:

"On June 12, 2018, the Radiation Safety Officer (RSO) for MISTRAS Group, Inc. (MGI), received a Landauer Corporation dosimetry report for an Excessive Exposure to the whole body. The report indicated that an instructor received a whole body exposure of 5168 mR during the month of May, yielding a whole body cumulative exposure to date of 5618 mR. A MGI two-person crew, composed of a radiography instructor and a radiography trainee were making exposures at a temporary jobsite located at the Bechtel Liquid Natural Gas Project at Sabine Pass, Louisiana in Cameron Parish. The exposure device was a QSA GLOBAL Model 880D loaded with a 74 Ci Ir-192 source.

"When the RSO informed the instructor of the reported excessive exposure, the instructor claimed that one day during May 2018, he had dropped his badge while he and his trainee were performing panoramic exposures, but did not notice the badge missing until after the exposure was completed. The instructor stated he searched for his badge and recovered it from the platform approximately one foot directly below the area being radiographed for a 90-second exposure. Upon further questioning of the above instructor, the RSO learned the body badge had been dropped and inadvertently exposed on May 10, 2018. The RSO stated the instructor failed to report the incident on the date of occurrence. The instructor claimed his direct-reading pocket dosimeter had not gone off-scale or received a high reading. The instructor stated that he believed his badge had only been missing for a single exposure. Health Physics calculations performed by the RSO using the isotope, activity, distance and exposure time provided to him by the instructor do not adequately account for the above excessive exposure in terms of the claimed single inadvertent exposure to the badge, as described.

"Instead of promptly utilizing the Louisiana Department of Environmental Quality [LDEQ] required emergency hotline number, the RSO for the licensee sent an email to an LDEQ radioactive materials inspector on June 25, 2018 at 11:59 am [CDT], approximately 13 days after the RSO for the licensee first discovered the excessive exposure."

Event Report ID No.: LA 180013


Page Last Reviewed/Updated Friday, May 03, 2019
Friday, May 03, 2019