| U.S. Nuclear Regulatory Commission
Operations Center Event Reports For
10/04/2010 - 10/05/2010 ** EVENT NUMBERS ** |
 | General Information or Other | Event Number: 46291 | Rep Org: PA BUREAU OF RADIATION PROTECTION
Licensee: UNIVERSIAL WELL SERVICES, INC
Region: 1
City: MEADVILLE State: PA
County:
License #:
Agreement: Y
Docket:
NRC Notified By: DAVID ALLARD
HQ OPS Officer: JOHN KNOKE | Notification Date: 09/29/2010
Notification Time: 21:15 [ET]
Event Date: 09/29/2010
Event Time: 07:50 [EDT]
Last Update Date: 09/29/2010 | Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
| Person (Organization):
MEL GRAY (R1DO)
KEVIN HSUEH (FSME)
| Event Text AGREEMENT STATE REPORT - SOURCE HOUSING ON DENSITOMETER DETACHED FROM EQUIPMENT
The following information was sent from the commonwealth via fax:
"Excessive equipment vibration while the licensee was working at a job site caused the source housing of the Berthold LB8010 densitometer (Ser. No. 10049) to dislodge itself from the base plate, and detach from the equipment it was mounted to. The source housing was not damaged, the shutter is fully functional, and current survey readings similarly match past surveys; approximately 200 microroentgen per hour (uR/h) being the highest reading at 1 meter, with the shutter was closed and beam pointed toward the ground. The SS&D sheet on this densitometer notes a [maximum] 50 milliCuries (mCi) of Cs-137 source. Exact current activity on this unit to be determined.
"CAUSE OF THE EVENT: Excessive vibration during use, and [perhaps] a design problem with how the source housing is bolted to a mounting plate.
"ACTIONS: To prevent this from happening in the future, the clamps will be switched out on all the licensee's inline densitometers. In the meantime, the device is being sent back to Berthold to be remounted using a new version clamp. They will try to send whatever they can of the old clamp that failed to Berthold so it can be inspected.
"PaDEP/BRP [state] will be performing an inspection of the device and equipment, as well as interviewing those involved with the source housing recovery for additional details.
"The licensee will also be providing a full report with their findings and corrective actions."
PA Event Report No: PA100023 |
| Other Nuclear Material | Event Number: 46307 | Rep Org: 3M
Licensee: 3M
Region: 3
City: SPRINGFIELD State: MO
County:
License #: 22-00057-03
Agreement: N
Docket:
NRC Notified By: FRED ENTWISTLE
HQ OPS Officer: MARK ABRAMOVITZ | Notification Date: 10/04/2010
Notification Time: 16:23 [ET]
Event Date: 10/04/2010
Event Time: 09:30 [CDT]
Last Update Date: 10/04/2010 | Emergency Class: NON EMERGENCY
10 CFR Section:
30.50(b)(2) - SAFETY EQUIPMENT FAILURE
| Person (Organization):
DAVE PASSEHL (R3DO)
KEVIN HSUEH (FSME)
| Event Text NUCLEAR PROCESS GAUGE MISALIGNED
"This is a report of failure of equipment to function as designed resulting in increased radiation levels.
"The equipment is an NDC [model 302] beta gauge, serial number 8996, containing a 200 mCi Kr-85 radioactive source. The gauge is installed on the 33 Coater at the Frame 4 position at the 3M Co. manufacturing plant, 3211 East Chestnut Expressway, Springfield, MO 65802.
"The gauge had been shut down last week when operators noted incorrect thickness readings. The gauge shutter was closed at that time. This morning, Oct. 4, 2010, at about 9:30 AM [CDT] maintenance personnel inspected the gauge. At that time they determined that the gauge heads were misaligned. The facility Radiation Safety Officer was contacted. It was further determined that the gauge shutter could be opened with the gauge heads in misaligned position. As the detector head serves as the beam stop with the shutter open this could result in personnel exposure.
"The RSO determined that no personnel were in the immediate vicinity of the gauge at the time when the incorrect readings were obtained and the shutter closed. Therefore there were no personnel exposures that resulted." |
| Power Reactor | Event Number: 46308 | Facility: WATERFORD
Region: 4 State: LA
Unit: [3] [ ] [ ]
RX Type: [3] CE
NRC Notified By: JOE WILLIAMS
HQ OPS Officer: MARK ABRAMOVITZ | Notification Date: 10/04/2010
Notification Time: 19:40 [ET]
Event Date: 10/04/2010
Event Time: 15:00 [CDT]
Last Update Date: 10/04/2010 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
| Person (Organization):
MICHAEL SHANNON (R4DO)
|
| Unit | SCRAM Code | RX CRIT | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode | | 3 | N | Y | 100 | Power Operation | 100 | Power Operation | Event Text OIL SHEEN ENTERS INTAKE STRUCTURE FROM UPSTREAM
"This is a Non-Emergency 4 hour notification being made in accordance with 10CFR 50.72(b)(2)(xi), an Offsite Notification. On October 4, 2010, at 1500 CDT, the Waterford 3 Operations supervision was notified by the Outside Operations watchstander that there appeared to be a diesel oil film from upstream of the Mississippi River collecting on the upstream side of the Waterford 3 non-safety related Circulating Water intake weir. The Chemistry Department environmental expert went to investigate with the Outside watch and verified that a diesel film was washed upon the north wall of the weir at the shore line forming about a 50 square foot sheen of diesel. Safety systems are not impacted by this condition.
"At 1609, the National Response Center was notified of the discovery of the sheen at our intake from an unknown source upstream. The incident report number was 956006. The Coast Guard was notified and the Waterford 3 environmental chemist received a call from the Coast Guard requesting information. The information was confirmed that a diesel film was washed upon the north wall of the intake structure weir at the shore line forming about a 50 square foot sheen of what appears to be red colored diesel. At 1734, Louisiana Hazardous Materials Hotline was notified (IR# 10-05779)."
The licensee notified the NRC Resident Inspector. |
| Power Reactor | Event Number: 46309 | Facility: WOLF CREEK
Region: 4 State: KS
Unit: [1] [ ] [ ]
RX Type: [1] W-4-LP
NRC Notified By: JAMES KNAP
HQ OPS Officer: MARK ABRAMOVITZ | Notification Date: 10/04/2010
Notification Time: 23:06 [ET]
Event Date: 10/04/2010
Event Time: 22:00 [CDT]
Last Update Date: 10/04/2010 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(i) - PLANT S/D REQD BY TS
| Person (Organization):
MICHAEL SHANNON (R4DO)
|
| Unit | SCRAM Code | RX CRIT | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode | | 1 | N | Y | 100 | Power Operation | 100 | Power Operation | Event Text TECHNICAL SPECIFICATION REQUIRED SHUTDOWN
"On 10/4/2010, at 2200 CDT, Wolf Creek Generating Station (WCGS) commenced a plant shutdown due to inoperability of the 'A' Train of Essential Service Water (ESW). On 10/2/2010, at 0642 CDT, 'A' Train ESW was declared inoperable due to indications of a leak on the buried ESW supply line. Technical Specification 3.7.8, Essential Service Water (ESW) System, Condition A, allows 72 hours to restore an inoperable ESW train. Location of the leak was identified using Ground Penetrating Radar and confirmed by excavation. Work is underway to evaluate and repair the leak. Since this work is expected to take longer than the allowed completion time (72 hours), it was decided to commence plant shutdown prior to expiration of the allowed 72 hours (10/5/2010 at 0642 CDT). Plant shutdown is required by Technical Specification 3.7.8, Condition B. Current plan is for the plant to be in Mode 3 (Hot Standby) by 0700 CDT on 10/5/2010. Plant cool down to Mode 5 will commence following shutdown and continue until such time as the leak has been repaired and the train restored to operable or until Mode 5 is reached."
The leak has been quantified as approximately 11.5 gpm.
The licensee notified the NRC Resident Inspector. | |