Event Notification Report for December 10, 2007
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
12/09/2007 - 12/10/2007
Power Reactor
Event Number: 43832
Facility: PALISADES
Region: 3 State: MI
Unit: [1] [] []
RX Type: [1] CE
NRC Notified By: TODD MULFORD
HQ OPS Officer: JASON KOZAL
Region: 3 State: MI
Unit: [1] [] []
RX Type: [1] CE
NRC Notified By: TODD MULFORD
HQ OPS Officer: JASON KOZAL
Notification Date: 12/10/2007
Notification Time: 22:21 [ET]
Event Date: 12/10/2007
Event Time: 18:30 [EST]
Last Update Date: 12/10/2007
Notification Time: 22:21 [ET]
Event Date: 12/10/2007
Event Time: 18:30 [EST]
Last Update Date: 12/10/2007
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
Person (Organization):
JOHN MADERA (R3)
JOHN MADERA (R3)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
NOTIFICATION TO OFFSITE AGENCIES DUE TO ELEVATED TRITIUM LEVELS
"Five new ground water monitoring wells were recently installed at Palisades Nuclear Plant in support of the Nuclear Energy institute (NEI) ground water initiative. The initial sampling of one of these wells displayed a level of tritium that triggered the communication protocol of the NEI initiative on ground water protection. On December 10, 2007, at 1830 hours, Entergy confirmed that the tritium concentration for this well was 22,000 picoCuries per liter (pCi/l). The threshold for initiating the communication protocol is 20,000 pCi/l (Offsite Dose Calculation Manual limit for drinking water). This well is located inside the owner controlled area and inside the protected area. This well is not a drinking water source. Entergy is continuing to investigate the source of tritium identified in this well. Samples from the remaining four wells are below minimum detectable activity levels. There is no indication that tritium has migrated off the Palisades site. The licensee plans to notify the State of Michigan, Van Buren County Office of Domestic Preparedness, City of South Haven, Covert Township, and the South Haven Charter Township.
"The licensee has notified the NRC Resident Inspector."
"Five new ground water monitoring wells were recently installed at Palisades Nuclear Plant in support of the Nuclear Energy institute (NEI) ground water initiative. The initial sampling of one of these wells displayed a level of tritium that triggered the communication protocol of the NEI initiative on ground water protection. On December 10, 2007, at 1830 hours, Entergy confirmed that the tritium concentration for this well was 22,000 picoCuries per liter (pCi/l). The threshold for initiating the communication protocol is 20,000 pCi/l (Offsite Dose Calculation Manual limit for drinking water). This well is located inside the owner controlled area and inside the protected area. This well is not a drinking water source. Entergy is continuing to investigate the source of tritium identified in this well. Samples from the remaining four wells are below minimum detectable activity levels. There is no indication that tritium has migrated off the Palisades site. The licensee plans to notify the State of Michigan, Van Buren County Office of Domestic Preparedness, City of South Haven, Covert Township, and the South Haven Charter Township.
"The licensee has notified the NRC Resident Inspector."
General Information or Other
Event Number: 43833
Rep Org: NORTH DAKOTA DEPARTMENT OF HEALTH
Licensee: UNIVERSITY OF NORTH DAKOTA
Region: 4
City: GRAND FORKS State: ND
County:
License #: 33-12827-01
Agreement: Y
Docket:
NRC Notified By: CHRIS SCHMALTZ
HQ OPS Officer: BILL HUFFMAN
Licensee: UNIVERSITY OF NORTH DAKOTA
Region: 4
City: GRAND FORKS State: ND
County:
License #: 33-12827-01
Agreement: Y
Docket:
NRC Notified By: CHRIS SCHMALTZ
HQ OPS Officer: BILL HUFFMAN
Notification Date: 12/11/2007
Notification Time: 09:17 [ET]
Event Date: 12/10/2007
Event Time: 15:45 [MST]
Last Update Date: 01/03/2008
Notification Time: 09:17 [ET]
Event Date: 12/10/2007
Event Time: 15:45 [MST]
Last Update Date: 01/03/2008
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
RUSSELL BYWATER (R4)
MICHELE BURGESS (FSME)
RUSSELL BYWATER (R4)
MICHELE BURGESS (FSME)
AGREEMENT STATE REPORT FROM NORTH DAKOTA OF A POSSIBLE OVEREXPOSURE
A physician researcher at the University of North Dakota received a report from Landauer of a radiation exposure reading on his badge of 74 Rem deep dose and 69 Rem shallow dose. The monitoring period for the badge (monthly or quarterly) was not known to the State. Investigation has determined that the researcher is believed to have worked only with P-32 and has done nothing out of the ordinary. The lab area where the researcher worked has been surveyed and there is no indication of contamination. The researcher is currently having blood work done to determine if there is any indication of radiation damage. The licensee is also working with Landauer focusing on the discrepancy between the deep dose and shallow dose readings on the badge. For an overexposure of this magnitude, it would be expected that the shallow dose would be much greater than the deep dose.
The University Radiation Committee is leading the investigation for the licensee. The State plans to evaluate the results of the licensee's investigation findings before considering what actions it will take .
* * * UPDATE FROM CHRIS SCHMALTZ TO RYAN ALEXANDER AT 0931 EST ON 12/19/2007 * * *
The North Dakota Department of Health was informed from Landauer that the physician researcher's ring badge from the time period had been processed and showed no remarkable dose above normal doses seen for those conducting activities similar to that of the researcher. Additionally, Landauer identified residual contamination (not quantified) on the researcher's primary dosimetry badge that showed the excessive deep dose and shallow dose. It appears at this time that the majority of the dose delivered to the primary badge may have been due to the contamination on the badge. Results of the blood work have not been completed the time of the update.
The researcher is currently restricted from working in radiation areas and using radioactive materials, pending the completion of the investigation.
Notified R4DO (Farnholtz) and FSME EO (Morell).
* * * UPDATE FROM CHRIS SCHMALTZ TO JOE O'HARA AT 1421 EST ON 01/03/2008 * * *
The North Dakota Department of Health was informed by the University of North Dakota via letter that the university received a report from Landauer that indicates the contamination was limited to the physician's badge and that the dose was to the badge and not to the individual. Blood work and a medical exam conclude that the physician was not overexposed. The dose in question was limited to the badge. Based upon the reported results, the State does not consider this to be an overexposure event.
Notified R4DO(Lantz) and FSME EO (Morell)
A physician researcher at the University of North Dakota received a report from Landauer of a radiation exposure reading on his badge of 74 Rem deep dose and 69 Rem shallow dose. The monitoring period for the badge (monthly or quarterly) was not known to the State. Investigation has determined that the researcher is believed to have worked only with P-32 and has done nothing out of the ordinary. The lab area where the researcher worked has been surveyed and there is no indication of contamination. The researcher is currently having blood work done to determine if there is any indication of radiation damage. The licensee is also working with Landauer focusing on the discrepancy between the deep dose and shallow dose readings on the badge. For an overexposure of this magnitude, it would be expected that the shallow dose would be much greater than the deep dose.
The University Radiation Committee is leading the investigation for the licensee. The State plans to evaluate the results of the licensee's investigation findings before considering what actions it will take .
* * * UPDATE FROM CHRIS SCHMALTZ TO RYAN ALEXANDER AT 0931 EST ON 12/19/2007 * * *
The North Dakota Department of Health was informed from Landauer that the physician researcher's ring badge from the time period had been processed and showed no remarkable dose above normal doses seen for those conducting activities similar to that of the researcher. Additionally, Landauer identified residual contamination (not quantified) on the researcher's primary dosimetry badge that showed the excessive deep dose and shallow dose. It appears at this time that the majority of the dose delivered to the primary badge may have been due to the contamination on the badge. Results of the blood work have not been completed the time of the update.
The researcher is currently restricted from working in radiation areas and using radioactive materials, pending the completion of the investigation.
Notified R4DO (Farnholtz) and FSME EO (Morell).
* * * UPDATE FROM CHRIS SCHMALTZ TO JOE O'HARA AT 1421 EST ON 01/03/2008 * * *
The North Dakota Department of Health was informed by the University of North Dakota via letter that the university received a report from Landauer that indicates the contamination was limited to the physician's badge and that the dose was to the badge and not to the individual. Blood work and a medical exam conclude that the physician was not overexposed. The dose in question was limited to the badge. Based upon the reported results, the State does not consider this to be an overexposure event.
Notified R4DO(Lantz) and FSME EO (Morell)