| U.S. Nuclear Regulatory Commission
Operations Center Event Reports For
08/10/2011 - 08/11/2011 ** EVENT NUMBERS ** |
 | Agreement State | Event Number: 47132 | Rep Org: CALIFORNIA RADIATION CONTROL PRGM
Licensee: PAVEMENT ENGINEERING
Region: 4
City: YUBA CITY State: CA
County: SUTTER
License #: CA-4977-45
Agreement: Y
Docket:
NRC Notified By: JASON FASSELL
HQ OPS Officer: ERIC SIMPSON | Notification Date: 08/06/2011
Notification Time: 17:44 [ET]
Event Date: 08/06/2011
Event Time: 05:30 [PDT]
Last Update Date: 08/06/2011 | Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
| Person (Organization):
BOB HAGAR (R4DO)
CHRISTEPHER MCKENNEY (FSME)
ILTAB VIA EMAIL ()
MEXICO VIA FAX ()
|
| This material event contains a "Less than Cat 3" level of radioactive material. | Event Text AGREEMENT STATE REPORT - LOST TROXLER GAUGE
The following information was obtained from the State of California via email:
"At 0530 PDT on 8/6/2011, a Model 4640 Troxler material density gauge belonging to Pavement Engineering of Redding, CA was lost at a construction site between McAllen Road and Olivehurst on Highway 70 south of Yuba City, CA. The operator set the gauge down by the side of the road and returned to find it missing. It was reported missing at 1105 PDT on 8/6/2011 to the California Emergency Management Agency who contacted the California Department of Public Health, Radiological Health Branch (RHB) at 1126 PDT. Sutter County Sheriff's office has responded and is investigating. Also contacted was Sutter County Fire Dept. A health physicist has been deployed from RHB to assist in the search with a variety of radiation survey instruments in case the gauge was misplaced by the side of the road.
"The gauge contains 9 mCi of Cs-137. "
* * * UPDATE ON 08/06/2011 AT 1936 PDT FROM JOHN FASSELL (VIA EMAIL) TO ERIC SIMPSON * * *
"A survey by RHB staff over 0.6 miles of highway margin assisted by licensee personnel failed to recover the gauge. A reward will be posted by the licensee."
Notified R4DO (Hagar) and FSME EO (McKenney) via 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 |
| Agreement State | Event Number: 47134 | Rep Org: CALIFORNIA RADIATION CONTROL PRGM
Licensee: ANHEUSER BUSCH
Region: 4
City: FAIRFIELD State: CA
County:
License #:
Agreement: Y
Docket:
NRC Notified By: ROBERT GREGOR
HQ OPS Officer: CHARLES TEAL | Notification Date: 08/06/2011
Notification Time: 22:25 [ET]
Event Date: 08/05/2011
Event Time: 19:44 [PDT]
Last Update Date: 08/06/2011 | Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
| Person (Organization):
BOB HAGAR (R4DO)
CHRISTEPHER MCKENNEY (FSME)
ILTAB VIA EMAIL ()
MEXICO VIA FAX ()
|
| This material event contains a "Less than Cat 3" level of radioactive material. | Event Text AGREEMENT STATE REPORT - MISSING TRITIUM EXIT SIGN
The licensee notified the state of California that on 8/5/2011 they had discovered one of its tritium exit signs missing. The licensee is investigating. The sign contained approximately 20 curies of H-3.
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
This source is not amongst those sources or devices identified by the IAEA Code of Conduct for the Safety & Security of Radioactive Sources to be of concern from a radiological standpoint. Therefore is it being categorized as a less than Category 3 source |
| Power Reactor | Event Number: 47138 | Facility: DUANE ARNOLD
Region: 3 State: IA
Unit: [1] [ ] [ ]
RX Type: [1] GE-4
NRC Notified By: JEFF MIELL
HQ OPS Officer: HOWIE CROUCH | Notification Date: 08/10/2011
Notification Time: 02:06 [ET]
Event Date: 08/10/2011
Event Time: 01:00 [CDT]
Last Update Date: 08/10/2011 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
| Person (Organization):
BILLY DICKSON (R3DO)
|
| 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 POTENTIAL LOSS OF TSC OPERABILITY WHILE PERFORMING PLANNED MAINTENANCE
"A planned maintenance evolution at the Duane Arnold Energy Center (DAEC) will have the potential to remove the plant computer systems (Plant Process Computer, Intranet, and Internet) from service. The TSC would be rendered non-functional with the loss of all computer systems. The replacement and testing of the automatic power transfer relay is expected to de-energize the computer systems for less than 20 minutes at any time.
"If an emergency is declared requiring TSC activation during this period, the TSC will be staffed and activated using existing emergency planning procedures. Maintenance will be terminated and power will be restored to the plant computer systems. The restoration of power to all computer systems is estimated to take less than one hour.
"This notification is being made in accordance with 10CFR50.72 (b)(3)(xiii) due to the potential loss of an Emergency Response Facility (ERF). An update will be provided once the plant computer systems power supplies have been restored to normal operation."
The licensee has notified the NRC Resident Inspector.
* * * UPDATE FROM STEVE BREWER TO CHARLES TEAL ON 08/10/11 AT 1305 EDT * * *
The TSC has been restored to operational status.
The licensee has notified the NRC Resident Inspector. Notified R3DO (Dickson). |
| Power Reactor | Event Number: 47139 | Facility: HARRIS
Region: 2 State: NC
Unit: [1] [ ] [ ]
RX Type: [1] W-3-LP
NRC Notified By: JOHN DOORHY
HQ OPS Officer: VINCE KLCO | Notification Date: 08/10/2011
Notification Time: 14:42 [ET]
Event Date: 08/10/2011
Event Time: 07:30 [EDT]
Last Update Date: 08/10/2011 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
| Person (Organization):
GEORGE HOPPER (R2DO)
|
| 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 EMERGENCY SIRENS OUT OF SERVICE DUE TO A COMMUNICATION PROBLEM
"At approximately 0730 [EDT] on 8/9/11 a siren system communication problem was discovered by Emergency Preparedness personnel at the Harris Nuclear Plant (HNP). Telecommunications was contacted to troubleshoot the problem and at approximately 0820 [EDT] the communications system was restored. A previously scheduled quarterly growl test was conducted with 83 sirens performing satisfactorily. Upon further investigation, it was determined that there were communication failures recorded during the 0600 [EDT] report.
"20 of the 83 sirens were impacted by the communications errors. The previous 0000 [EDT] report indicated no communications errors. Investigation is continuing as to the ability of the sirens to be activated during the period the errors were received. It is likely that the ability to activate the sirens had been lost, therefore, this event is reportable per 10 CFR 50.72(b)(3)(xiii) due to the loss of a significant portion of the offsite notification system. The cause of the communication errors are believed to be due to radiofrequency disturbances however the investigation is ongoing.
"In the event that the sirens had been needed, the State of North Carolina and all four counties within the 10-mile emergency planning zone would have implemented mobile route alerting, as detailed in the Emergency Plan."
The licensee notified the NRC Resident Inspector. |
| Power Reactor | Event Number: 47141 | Facility: NINE MILE POINT
Region: 1 State: NY
Unit: [ ] [2] [ ]
RX Type: [1] GE-2,[2] GE-5
NRC Notified By: JOHN APRIL
HQ OPS Officer: BILL HUFFMAN | Notification Date: 08/11/2011
Notification Time: 01:05 [ET]
Event Date: 08/11/2011
Event Time: 00:16 [EDT]
Last Update Date: 08/11/2011 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
| Person (Organization):
RAY POWELL (R1DO)
|
| Unit | SCRAM Code | RX CRIT | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode | | 2 | M/R | Y | 15 | Power Operation | 0 | Hot Shutdown | Event Text MANUAL REACTOR SCRAM INSERTED DUE TO A FEEDWATER LEAK ON A MIN FLOW LINE
"NMP2 inserted a manual reactor scram due to a through wall leak on feedwater pump 2FWS-P1A minimum flow line. 2FWS-P1A has been removed from service to minimize the leak. All control rods inserted and all systems functioned as designed. The unit will remain in hot shutdown until plant startup."
All systems functioned as required and the scram was uncomplicated.
The plans to issue a press release and has informed the NRC Resident Inspector and the New York State Public Service Commission. | |