Event Notification Report for February 23, 2000
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
02/22/2000 - 02/23/2000
General Information or Other
Event Number: 36724
Rep Org: ARKANSAS DEPT OF HEALTH
Licensee: MATERIAL TESTING OF ARKANSAS, INC.
Region: 4
City: LITTLE ROCK State: AR
County:
License #: ARK859BP0302
Agreement: Y
Docket:
NRC Notified By: JERED THOMPSON
HQ OPS Officer: STEVE SANDIN
Licensee: MATERIAL TESTING OF ARKANSAS, INC.
Region: 4
City: LITTLE ROCK State: AR
County:
License #: ARK859BP0302
Agreement: Y
Docket:
NRC Notified By: JERED THOMPSON
HQ OPS Officer: STEVE SANDIN
Notification Date: 02/24/2000
Notification Time: 14:49 [ET]
Event Date: 02/23/2000
Event Time: 12:00 [CST]
Last Update Date: 02/24/2000
Notification Time: 14:49 [ET]
Event Date: 02/23/2000
Event Time: 12:00 [CST]
Last Update Date: 02/24/2000
Emergency Class: NON EMERGENCY
10 CFR Section:
20.2201(a)(1)(i) - LOST/STOLEN LNM>1000X
10 CFR Section:
20.2201(a)(1)(i) - LOST/STOLEN LNM>1000X
Person (Organization):
CHARLES MARSCHALL (R4)
BRIAN SMITH (NMSS)
CHARLES MARSCHALL (R4)
BRIAN SMITH (NMSS)
AGREEMENT STATE REPORT INVOLVING A STOLEN TROXLER MOISTURE DENSITY GAUGE
AT APPROXIMATELY 1200 CST ON 2/23/00, A TROXLER MOISTURE DENSITY GAUGE WAS STOLEN FROM A MATERIALS TESTING OF ARKANSAS, INC., TRUCK PARKED AT A WALMART STORE IN LITTLE ROCK, AR. THE GAUGE WAS A MODEL #3430, S/N 26636 CONTAINING TWO RADIOACTIVE SOURCES; 8 mCi Cs-137 AND 40 mCi 241- AmBe.
LOCAL POICE WERE INFORMED AND THE GAUGE WAS RECOVERED ABOUT 2 HOURS LATER ABANDONED ROADSIDE. THERE WAS NO DAMAGE OR INDICATION OF TAMPERING.
THE ARKANSAS DEPT. OF HEALTH ISSUED A PRESS RELEASE AND WILL CONTACT THE NRC REGION IV OFFICE.
CONTACT THE HEADQUARTERS OPERATIONS OFFICER FOR THE LICENSEE'S ADDRESS.
AT APPROXIMATELY 1200 CST ON 2/23/00, A TROXLER MOISTURE DENSITY GAUGE WAS STOLEN FROM A MATERIALS TESTING OF ARKANSAS, INC., TRUCK PARKED AT A WALMART STORE IN LITTLE ROCK, AR. THE GAUGE WAS A MODEL #3430, S/N 26636 CONTAINING TWO RADIOACTIVE SOURCES; 8 mCi Cs-137 AND 40 mCi 241- AmBe.
LOCAL POICE WERE INFORMED AND THE GAUGE WAS RECOVERED ABOUT 2 HOURS LATER ABANDONED ROADSIDE. THERE WAS NO DAMAGE OR INDICATION OF TAMPERING.
THE ARKANSAS DEPT. OF HEALTH ISSUED A PRESS RELEASE AND WILL CONTACT THE NRC REGION IV OFFICE.
CONTACT THE HEADQUARTERS OPERATIONS OFFICER FOR THE LICENSEE'S ADDRESS.
Power Reactor
Event Number: 36720
Facility: MONTICELLO
Region: 3 State: MN
Unit: [1] [] []
RX Type: [1] GE-3
NRC Notified By: ELLIS PFEFFER
HQ OPS Officer: DICK JOLLIFFE
Region: 3 State: MN
Unit: [1] [] []
RX Type: [1] GE-3
NRC Notified By: ELLIS PFEFFER
HQ OPS Officer: DICK JOLLIFFE
Notification Date: 02/23/2000
Notification Time: 18:00 [ET]
Event Date: 02/23/2000
Event Time: 14:00 [CST]
Last Update Date: 02/23/2000
Notification Time: 18:00 [ET]
Event Date: 02/23/2000
Event Time: 14:00 [CST]
Last Update Date: 02/23/2000
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iii)(C) - POT UNCNTRL RAD REL
10 CFR Section:
50.72(b)(2)(iii)(C) - POT UNCNTRL RAD REL
Person (Organization):
JAMES CREED (R3)
WILLIAM BECKNER (NRR)
JAMES CREED (R3)
WILLIAM BECKNER (NRR)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | N | 0 | Cold Shutdown | 0 | Cold Shutdown |
- Discovery of unfiltered leak path from Secondary Containment to outside atmosphere via the SBGT System -
During Standby Gas Treatment (SBGT) System testing, the pressure in the room containing the SBGT System was found to be at a lower pressure than Secondary Containment (SC). The SBGT System draws a negative pressure on the SC during accident scenarios. The SBGT System room is located outside SC. With the SBGT System room being at a lower pressure than SC, a possible leakage path is created from SC into the SBGT System room, into the SBGT System (downstream of the filters) and out the plant stack. This path bypasses the SBGT System filtering assumed in the offsite dose analysis. This leakage path is small, but is not currently assumed in the accident analysis.
The licensee is determining corrective actions and plans to resolve this issue prior to restarting the plant.
The licensee notified state and local officials and the NRC Resident Inspector.
During Standby Gas Treatment (SBGT) System testing, the pressure in the room containing the SBGT System was found to be at a lower pressure than Secondary Containment (SC). The SBGT System draws a negative pressure on the SC during accident scenarios. The SBGT System room is located outside SC. With the SBGT System room being at a lower pressure than SC, a possible leakage path is created from SC into the SBGT System room, into the SBGT System (downstream of the filters) and out the plant stack. This path bypasses the SBGT System filtering assumed in the offsite dose analysis. This leakage path is small, but is not currently assumed in the accident analysis.
The licensee is determining corrective actions and plans to resolve this issue prior to restarting the plant.
The licensee notified state and local officials and the NRC Resident Inspector.
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
Fuel Cycle Facility
Event Number: 36721
Facility: PORTSMOUTH GASEOUS DIFFUSION PLANT
Region: 3 State: OH
Unit: [] [] []
RX Type: URANIUM ENRICHMENT FACILITY
Comments: 2 DEMOCRACY CENTER
6903 ROCKLEDGE DRIVE
BETHESDA, MD 20817 (301)564-3200
NRC Notified By: RICK LARSON
HQ OPS Officer: DICK JOLLIFFE
Region: 3 State: OH
Unit: [] [] []
RX Type: URANIUM ENRICHMENT FACILITY
Comments: 2 DEMOCRACY CENTER
6903 ROCKLEDGE DRIVE
BETHESDA, MD 20817 (301)564-3200
NRC Notified By: RICK LARSON
HQ OPS Officer: DICK JOLLIFFE
Notification Date: 02/23/2000
Notification Time: 19:11 [ET]
Event Date: 02/23/2000
Event Time: 08:35 [EST]
Last Update Date: 03/10/2000
Notification Time: 19:11 [ET]
Event Date: 02/23/2000
Event Time: 08:35 [EST]
Last Update Date: 03/10/2000
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
JAMES CREED (R3)
WILLIAM BRACH (NMSS)
JAMES CREED (R3)
WILLIAM BRACH (NMSS)
- Emergency response procedures implemented due to a smoke head alarm and high pressure vent actuation -
At approximately 0835 on 02/23/00, Portsmouth operations personnel received a smoke head alarm for extended range product (ERP) compressor W-3 in Area Control Room (ACR)-4. At the same time, another operator in ACR-4 looked at the TV monitor for the ERP compressors and saw a "puff" of smoke around compressor W-3. The plant's "SEE & FLEE" emergency procedures were immediately implemented. The ERP stations' high pressure vent actuated taking the station below atmospheric pressure. Results of all surveys performed during the emergency response were less than minimum detectable activity. At 0949, the emergency response was cancelled. The ERP station was made inoperable to allow for testing of the system by operations and engineering personnel. Portsmouth is reporting this alarm as a valid actuation of a "Q" Safety System.
This event is reportable to the NRC as a valid actuation of a "Q" Safety System in accordance with Safety Analysis Report, Section 6.9 (24-HOUR REPORT).
There was no loss of hazardous or radioactive material nor radioactive or radiological contamination exposure as result of this event.
The NRC Resident Inspector and DOE site representative were notified of this event.
PTS-2000-020 PR-PTS-00-01079
* * * RETRACTION 1501 3/10/2000 FROM HALCOMB TAKEN BY STRANSKY * * *
"After further investigation, it has been determined that a 'Q' safety system actuation did not occur. The Pyrotronic smoke detectors and the ERP station high pressure vent are not classified as 'Q' safety systems. The CADP smokeheads, which are classified as 'Q' safety systems, did not actuate. Since there was no safety system actuation, this event has been determined to be not reportable to the NRC and is being retracted."
The NRC resident inspector has been informed of this retraction. Notified R3DO (Lanksbury).
At approximately 0835 on 02/23/00, Portsmouth operations personnel received a smoke head alarm for extended range product (ERP) compressor W-3 in Area Control Room (ACR)-4. At the same time, another operator in ACR-4 looked at the TV monitor for the ERP compressors and saw a "puff" of smoke around compressor W-3. The plant's "SEE & FLEE" emergency procedures were immediately implemented. The ERP stations' high pressure vent actuated taking the station below atmospheric pressure. Results of all surveys performed during the emergency response were less than minimum detectable activity. At 0949, the emergency response was cancelled. The ERP station was made inoperable to allow for testing of the system by operations and engineering personnel. Portsmouth is reporting this alarm as a valid actuation of a "Q" Safety System.
This event is reportable to the NRC as a valid actuation of a "Q" Safety System in accordance with Safety Analysis Report, Section 6.9 (24-HOUR REPORT).
There was no loss of hazardous or radioactive material nor radioactive or radiological contamination exposure as result of this event.
The NRC Resident Inspector and DOE site representative were notified of this event.
PTS-2000-020 PR-PTS-00-01079
* * * RETRACTION 1501 3/10/2000 FROM HALCOMB TAKEN BY STRANSKY * * *
"After further investigation, it has been determined that a 'Q' safety system actuation did not occur. The Pyrotronic smoke detectors and the ERP station high pressure vent are not classified as 'Q' safety systems. The CADP smokeheads, which are classified as 'Q' safety systems, did not actuate. Since there was no safety system actuation, this event has been determined to be not reportable to the NRC and is being retracted."
The NRC resident inspector has been informed of this retraction. Notified R3DO (Lanksbury).