Event Notification Report for July 23, 2002
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
07/22/2002 - 07/23/2002
General Information or Other
Event Number: 39084
Rep Org: NE DIV OF RADIOACTIVE MATERIALS
Licensee: GEOTECHNICAL SERVICES, INC.
Region: 4
City: OMAHA State: NE
County:
License #: 0138-01
Agreement: Y
Docket:
NRC Notified By: SUE SEMERENA
HQ OPS Officer: LEIGH TROCINE
Licensee: GEOTECHNICAL SERVICES, INC.
Region: 4
City: OMAHA State: NE
County:
License #: 0138-01
Agreement: Y
Docket:
NRC Notified By: SUE SEMERENA
HQ OPS Officer: LEIGH TROCINE
Notification Date: 07/23/2002
Notification Time: 16:52 [ET]
Event Date: 07/23/2002
Event Time: 12:39 [CDT]
Last Update Date: 07/23/2002
Notification Time: 16:52 [ET]
Event Date: 07/23/2002
Event Time: 12:39 [CDT]
Last Update Date: 07/23/2002
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
BILL JONES (R4)
ERIC LEEDS (NMSS)
BILL JONES (R4)
ERIC LEEDS (NMSS)
AGREEMENT STATE REPORT INVOLVING THE DISCOVERY OF A CPN MOISTURE DENSITY GAUGE BY A THIEL GEOTECH CLIENT IN OMAHA, NEBRASKA, AND THE SUBSEQUENT REPORT OF THE LOSS OF THE SAME GAUGE BY GEOTECHNICAL SERVICES, INC.
At approximately 1100 CDT on 07/23/02, an engineering company (Thiel Geotech) notified the Nebraska Division of Radioactive Materials that one of their clients had found a CPN moisture density gauge. The gauge was discovered in a pad-locked transport container at a construction site (approximately 180th and Harrison) in Omaha, Nebraska. Thiel Geotech is licensed to use/hold similar gauges, and representatives of Thiel Geotech transported the gauge to their office in order to secure it.
The State reported that the gauge (model CPN-131, serial number MD00105439) contained a maximum of 50 millicuries of americium-241/beryllium and a maximum of 10 millicuries of cesium-137. At the request of the State, Thiel Geotech broke through the padlock to check the gauge and to perform surveys. There was no observable damage, and the survey results were normal. The State was able to identify the owner of the gauge fairly soon via an ownership label and the serial number.
At approximately 1239 CDT on 07/23/02, Geotechnical Services, Inc., notified the Nebraska Division of Radioactive Materials of the loss of the same gauge. Geotechnical Services, Inc., also notified local law enforcement.
The Nebraska Division of Radioactive Materials has had several conversations with both companies and has also been in contact with local law enforcement. The State requested Thiel Geotech to hold the gauge pending the State's investigation, which is currently planned for tomorrow.
(Call the NRC operations officer for a Nebraska Division of Radioactive Materials contact telephone number.)
At approximately 1100 CDT on 07/23/02, an engineering company (Thiel Geotech) notified the Nebraska Division of Radioactive Materials that one of their clients had found a CPN moisture density gauge. The gauge was discovered in a pad-locked transport container at a construction site (approximately 180th and Harrison) in Omaha, Nebraska. Thiel Geotech is licensed to use/hold similar gauges, and representatives of Thiel Geotech transported the gauge to their office in order to secure it.
The State reported that the gauge (model CPN-131, serial number MD00105439) contained a maximum of 50 millicuries of americium-241/beryllium and a maximum of 10 millicuries of cesium-137. At the request of the State, Thiel Geotech broke through the padlock to check the gauge and to perform surveys. There was no observable damage, and the survey results were normal. The State was able to identify the owner of the gauge fairly soon via an ownership label and the serial number.
At approximately 1239 CDT on 07/23/02, Geotechnical Services, Inc., notified the Nebraska Division of Radioactive Materials of the loss of the same gauge. Geotechnical Services, Inc., also notified local law enforcement.
The Nebraska Division of Radioactive Materials has had several conversations with both companies and has also been in contact with local law enforcement. The State requested Thiel Geotech to hold the gauge pending the State's investigation, which is currently planned for tomorrow.
(Call the NRC operations officer for a Nebraska Division of Radioactive Materials contact telephone number.)
Power Reactor
Event Number: 39085
Facility: LIMERICK
Region: 1 State: PA
Unit: [] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: BOB REINER
HQ OPS Officer: LEIGH TROCINE
Region: 1 State: PA
Unit: [] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: BOB REINER
HQ OPS Officer: LEIGH TROCINE
Notification Date: 07/23/2002
Notification Time: 17:30 [ET]
Event Date: 07/23/2002
Event Time: 16:32 [EDT]
Last Update Date: 07/23/2002
Notification Time: 17:30 [ET]
Event Date: 07/23/2002
Event Time: 16:32 [EDT]
Last Update Date: 07/23/2002
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
Person (Organization):
RICHARD CONTE (R1)
RICHARD CONTE (R1)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | M/R | Y | 100 | Power Operation | 0 | Hot Shutdown |
MANUAL REACTOR SCRAM DUE TO THE LOSS OF CONDENSER VACUUM FOR UNKNOWN REASONS
The following text is a portion of a facsimile received from the licensee:
"Limerick Unit 2 was manually scrammed due to a loss of main condenser vacuum. All systems functioned as expected during the scram. No [emergency core cooling system injections] occurred. All rods fully inserted. No [safety relief valves] lifted. The unit is currently stable in Mode 3. Investigation into the loss of vacuum is continuing."
The licensee stated that the main steam isolation valves remained open during the event. There were no reactor core isolation cooling system injections, and none were required. There were no related surveillance or maintenance activities ongoing at the time of the reactor scram, and there was nothing unusual or misunderstood with the exception of the cause for the loss of condenser vacuum.
The licensee also stated that reactor vessel level and pressure control are currently being maintained via normal condensate and feedwater and via normal turbine bypass, respectively. The main condenser is available as the heat sink, and main condenser vacuum is being maintained via the steam jet air ejectors. The mechanical vacuum pump had also been prepared and is available to maintain condenser vacuum if needed. Containment parameters were reported to be normal.
The licensee notified the NRC resident inspector.
The following text is a portion of a facsimile received from the licensee:
"Limerick Unit 2 was manually scrammed due to a loss of main condenser vacuum. All systems functioned as expected during the scram. No [emergency core cooling system injections] occurred. All rods fully inserted. No [safety relief valves] lifted. The unit is currently stable in Mode 3. Investigation into the loss of vacuum is continuing."
The licensee stated that the main steam isolation valves remained open during the event. There were no reactor core isolation cooling system injections, and none were required. There were no related surveillance or maintenance activities ongoing at the time of the reactor scram, and there was nothing unusual or misunderstood with the exception of the cause for the loss of condenser vacuum.
The licensee also stated that reactor vessel level and pressure control are currently being maintained via normal condensate and feedwater and via normal turbine bypass, respectively. The main condenser is available as the heat sink, and main condenser vacuum is being maintained via the steam jet air ejectors. The mechanical vacuum pump had also been prepared and is available to maintain condenser vacuum if needed. Containment parameters were reported to be normal.
The licensee notified the NRC resident inspector.
Hospital
Event Number: 39095
Rep Org: NORWALK HOSPITAL
Licensee: NORWALK HOSPITAL
Region: 1
City: NORWALK State: CT
County:
License #: 06-06941-01
Agreement: N
Docket:
NRC Notified By: MALCOLM POWELL
HQ OPS Officer: STEVE SANDIN
Licensee: NORWALK HOSPITAL
Region: 1
City: NORWALK State: CT
County:
License #: 06-06941-01
Agreement: N
Docket:
NRC Notified By: MALCOLM POWELL
HQ OPS Officer: STEVE SANDIN
Notification Date: 07/26/2002
Notification Time: 10:00 [ET]
Event Date: 07/23/2002
Event Time: 00:00 [EDT]
Last Update Date: 07/26/2002
Notification Time: 10:00 [ET]
Event Date: 07/23/2002
Event Time: 00:00 [EDT]
Last Update Date: 07/26/2002
Emergency Class: NON EMERGENCY
10 CFR Section:
20.2201(a)(1)(ii) - LOST/STOLEN LNM>10X
10 CFR Section:
20.2201(a)(1)(ii) - LOST/STOLEN LNM>10X
Person (Organization):
RICHARD CONTE (R1)
MELVYN LEACH (NMSS)
RICHARD CONTE (R1)
MELVYN LEACH (NMSS)
I-125 SEED UNACCOUNTED FOR FOLLOWING IMPLANTATION
On 7/23/02 a male patient underwent surgery for implantation of Iodine-125 seeds as part of the treatment plan for prostate cancer. Following the surgery, the technician discovered that only 7 instead of 8 of the original 110 seeds delivered to the OR [Operating Room] were remaining. A survey of the area was unable to locate the missing seed [338 millicuries]. The RSO believes that either the missing seed was inadvertently washed down the OR sink drain during cleanup or that 103 instead of 102 seeds prescribed were implanted. The licensee will submit a written report within 30 days.
On 7/23/02 a male patient underwent surgery for implantation of Iodine-125 seeds as part of the treatment plan for prostate cancer. Following the surgery, the technician discovered that only 7 instead of 8 of the original 110 seeds delivered to the OR [Operating Room] were remaining. A survey of the area was unable to locate the missing seed [338 millicuries]. The RSO believes that either the missing seed was inadvertently washed down the OR sink drain during cleanup or that 103 instead of 102 seeds prescribed were implanted. The licensee will submit a written report within 30 days.