United States Nuclear Regulatory Commission - Protecting People and the Environment
Home > NRC Library > Document Collections > Reports Associated with Events > Event Notification Reports > 2015 > December 23

Event Notification Report for December 23, 2015

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
12/22/2015 - 12/23/2015

** EVENT NUMBERS **


51605 51608

To top of page
Agreement State Event Number: 51605
Rep Org: TEXAS DEPT OF STATE HEALTH SERVICES
Licensee: UNION CARBIDE CORP - SEADRIFT OPERATIONS UNIT
Region: 4
City: PORT LAVACA State: TX
County:
License #: 00051
Agreement: Y
Docket:
NRC Notified By: IRENE CASARES
HQ OPS Officer: JOHN SHOEMAKER
Notification Date: 12/14/2015
Notification Time: 15:14 [ET]
Event Date: 12/14/2015
Event Time: [CST]
Last Update Date: 12/14/2015
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
RAY AZUA (R4DO)
NMSS_EVENTS_NOTIFIC (EMAI)

Event Text

AGREEMENT STATE REPORT - FIXED GAUGE WITH SHUTTER STUCK IN THE OPEN POSITION

The following report was received from the State of Texas via email:

"On December 14, 2015, the Agency [Texas Department of State Health Services] was notified by the licensee's radiation safety officer [RSO] that while performing routine test of gauge shutters they found a gauge where the shutter failed to operate. The gauge is located on a polyurethane tank/vessel. The gauge is an Ohmart Vega model SHF2 containing source serial number 9754GK of 200 millicurie cesium - 137. The shutter was left in the normal operating, unshielded position [open]. The source does not pose any additional risk of exposure to the workers or members of the general public. The RSO stated they have called TechStar to repair the gauge within the next few days."

Texas Report #: I 9365

To top of page
Agreement State Event Number: 51608
Rep Org: OHIO BUREAU OF RADIATION PROTECTION
Licensee: MISTRAS GROUP, INC.
Region: 3
City: HEATH State: OH
County:
License #: 03320460000
Agreement: Y
Docket:
NRC Notified By: STEPHEN JAMES
HQ OPS Officer: JOHN SHOEMAKER
Notification Date: 12/15/2015
Notification Time: 17:16 [ET]
Event Date: 12/11/2015
Event Time: 17:38 [EST]
Last Update Date: 12/15/2015
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
NICK VALOS (R3DO)
NMSS_EVENTS_NOTIFIC (EMAI)

This material event contains a "Category 2 " level of radioactive material.

Event Text

AGREEMENT STATE REPORT - UNATTENDED RADIOGRAPHIC EXPOSURE DEVICE

The following report was received from the State of Ohio via email:

"On 12-11-2015, at 1738 EST, a radiographic exposure device was left unattended by licensee personnel and found by a customer's employee.

"Licensee's investigation indicated that their crew had performed 2 exposures at 2 minutes and 30 seconds on each exposure. Customer operations wanted to get their nuclear gauges back online as soon as possible so when the last exposure was complete the radiographer sent the assistant to let [the Customer] operations know they were complete. The radiographer then broke down everything and picked up the assistant [radiographer] at the ops building. They then drove back to the trailer where the radiographer went to the smoking area and the assistant went to the restroom. When the assistant came out they both went to back of the vehicle to grab film and they realized that the source was not in the vehicle. They immediately drove back to the area.

"While enroute back to the location of the radiography work they received a phone call from the customer's project manager that an employee had located an unattended exposure device. When the crew arrived, they determined the device was in the same place where they left it and the device was locked. Estimated time that the device was unsecured was 15 minutes. They surveyed the device, secured the device in the vehicle, and went back to the trailer. The licensee left a voice mail at ODH [Ohio Department of Health] at 1819 EST describing the situation.

"There was an immediate safety stand down put in place and no further exposures were to be made. On Saturday morning, 12/15/15, there was a conference call made at 0706 EST to the licensee's crews that were working. The crew that was involved in the incident were suspended from any radiographic work until a full investigation was made.

"On 12-14-2015, the [licensee's] RSO [Radiation Safety Officer] conducted a site visit and there was another safety meeting held with all crews on site.

"The exposure device was an 880 Delta made by QSA, the device contained 33.2 curies of IR-192, the source was made by QSA, model number 424-9.

"A more detailed report is expected from the licensee."

Ohio State NMED Report: OH150013

THIS MATERIAL EVENT CONTAINS A "CATEGORY 2" LEVEL OF RADIOACTIVE MATERIAL

Category 2 sources, if not safely managed or securely protected, could cause permanent injury to a person who handled them, or were otherwise in contact with them, for a short time (minutes to hours). It could possibly be fatal to be close to this amount of unshielded radioactive material for a period of hours to days. These sources are typically used in practices such as industrial gamma radiography, high dose rate brachytherapy and medium dose rate brachytherapy. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf

Page Last Reviewed/Updated Wednesday, December 23, 2015
Wednesday, December 23, 2015