Skip to main content

Event Notification Report for March 30, 2010

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
03/29/2010 - 03/30/2010

EVENT NUMBERS
4694045803

Non-Agreement State
Event Number: 46940
Rep Org: HEMLOCK SEMICONDUCTOR CORPORATION
Licensee: HEMLOCK SEMICONDUCTOR CORPORATION
Region: 3
City: HEMLOCK   State: MI
County:
License #: 21-32682-01
Agreement: N
Docket:
NRC Notified By: WALLACE MILLETT
HQ OPS Officer: BILL HUFFMAN
Notification Date: 06/09/2011
Notification Time: 12:30 [ET]
Event Date: 03/30/2010
Event Time: 00:00 [EDT]
Last Update Date: 06/09/2011
Emergency Class: NON EMERGENCY
10 CFR Section:
30.50(b)(2) - SAFETY EQUIPMENT FAILURE
Person (Organization):
JULIO LARA (R3DO)
ANGELA MCINTOSH (FSME)
Event Text
FIXED PROCESS GAUGE SHUTTER FAILURE

The RSO reported a shutter problem on a fixed mounted process gauge manufactured by Ohmart Vega (Model SHF-2) containing a 200mCi CS-137 source. The shutter problem was discovered during a semi-annual shutter test on 3/30/2010 when it was determined that the shutter would not close. The shutter is normally always open to support the manufacturing process and the failure to close did not pose any personnel risk at the time of occurrence. A representative from the gauge manufacturer repaired the shutter onsite and the shutter has functioned acceptably since the repair.

The RSO noted that this event occurred over one year ago and he was unaware that it was reportable at the time. The RSO was alerted to the reportability requirements of this incident during his review of NRC Information Notice IN-2011-09.


General Information or Other
Event Number: 45803
Rep Org: VIRGINIA RAD MATERIALS PROGRAM
Licensee: VIRGINIA DEPARTMENT OF TRANSPORTATION
Region: 1
City: SELMA   State: VA
County:
License #: 760-437-1
Agreement: Y
Docket:
NRC Notified By: MICHAEL WELLING
HQ OPS Officer: DONALD NORWOOD
Notification Date: 03/31/2010
Notification Time: 16:44 [ET]
Event Date: 03/30/2010
Event Time: 14:15 [EDT]
Last Update Date: 03/31/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
Person (Organization):
PAUL KROHN (R1DO)
DUNCAN WHITE (FSME)
Event Text
AGREEMENT STATE REPORT - DAMAGED PORTABLE MOISTURE DENSITY GAUGE

The following is a synopsis of information received via facsimile from the Commonwealth of Virginia:

On Tuesday, March 30, 2010, a Virginia Department of Transportation (VDOT) employee was using a Model #3440 moisture density gauge (Serial #31899). This gauge was damaged when a compaction roller ran over it. The time of the incident was approximately 2:15 pm. The VDOT inspector had left the gauge unattended to go to her pick-up to get the gauge tools needed to perform a density test. Upon arriving back at the gauge, the inspector noticed that the gauge had been hit by the compaction roller. The location where this event occurred was at a construction site on route 696 in Selma, VA in the Staunton District area, on the South side of the bridge, at Abutment A, station number 101+ 75.

The inspector roped off the area, stopped the compaction roller, and called the District RSO from the Staunton District. The District RSO arrived at approximately 4:15 pm. The District RSO took a survey of the area and recorded readings of 1.2 to 1.7 mr/hr. The District RSO checked the source rod and determined that it was still in the shield. The gauge was transported to VDOT's home office at 6200 Elko Tract Road and is now in storage. No personnel were injured as a result of this event.

Virginia Event Report ID No.: VA-10-01