Event Notification Report for April 05, 2008
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
04/04/2008 - 04/05/2008
EVENT NUMBERS
44124
Power Reactor
Event Number: 44124
Facility: RANCHO SECO
Region: 4 State: CA
Unit: [1] [] []
RX Type: [1] B&W-L-LP
NRC Notified By: STEVE REDEKER
HQ OPS Officer: JEFF ROTTON
Region: 4 State: CA
Unit: [1] [] []
RX Type: [1] B&W-L-LP
NRC Notified By: STEVE REDEKER
HQ OPS Officer: JEFF ROTTON
Notification Date: 04/07/2008
Notification Time: 18:41 [ET]
Event Date: 04/05/2008
Event Time: 11:40 [PDT]
Last Update Date: 04/07/2008
Notification Time: 18:41 [ET]
Event Date: 04/05/2008
Event Time: 11:40 [PDT]
Last Update Date: 04/07/2008
Emergency Class: UNUSUAL EVENT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
Person (Organization):
RYAN LANTZ (R4)
THEODORE QUAY (NRR)
JEFFREY CRUZ (IRD)
RYAN LANTZ (R4)
THEODORE QUAY (NRR)
JEFFREY CRUZ (IRD)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | N | 0 | Decommissioned | 0 | Decommissioned |
UNUSUAL EVENT REPORTED AFTER-THE- FACT DUE TO A FIRE ONSITE
"Rancho Seco is a defueled reactor. All fuel is in the Rancho Seco ISFSI.
"During decommissioning operations in the reactor building, a debris fire occurred while the contractor was cutting rebar during the removal of interior concrete. Assorted trash and combustible materials were ignited.
"The building was evacuated per procedures and onsite SMUD staff and contractors brought the fire under control utilizing available fire suppression equipment after several minutes and the fire was deemed extinguished at 1340 hours, 4/5/08.
"No injuries occurred.
"All weekend work operations were ceased and a fire watch was established. A review of the incident occurred and measures to prevent future fires were employed.
"Decommissioning work resumed Monday, 4/7/08. As part of the After Action Review it was determined official notification to response and regulatory agencies still needed to be made.
"No detectable airborne contamination occurred.
"No contaminated personnel occurred."
The fire was detected in destruction debris under a pile of concrete rubble in the reactor building. The fire was initially extinguished at 1045 PDT by onsite personnel. The fire reflashed two additional times and was extinguished until it was determined to by completely extinguished at 1340 PDT on 04/05/08 and the licensee terminated the Unusual Event. The event was declared and logged by the ISFSI Technician on 04/05/08, who is also the onsite Emergency Coordinator when an emergency is declared. It was discovered on the morning of 04/07/08 that the emergency declaration was made and logged on 04/05/08 at 1140 PDT, but no offsite regulatory notifications had been made.
The licensee notified the local NRC Inspector (Garcia) and Region 4 (Keller). The licensee will be notifying the state and local emergency response organizations.
"Rancho Seco is a defueled reactor. All fuel is in the Rancho Seco ISFSI.
"During decommissioning operations in the reactor building, a debris fire occurred while the contractor was cutting rebar during the removal of interior concrete. Assorted trash and combustible materials were ignited.
"The building was evacuated per procedures and onsite SMUD staff and contractors brought the fire under control utilizing available fire suppression equipment after several minutes and the fire was deemed extinguished at 1340 hours, 4/5/08.
"No injuries occurred.
"All weekend work operations were ceased and a fire watch was established. A review of the incident occurred and measures to prevent future fires were employed.
"Decommissioning work resumed Monday, 4/7/08. As part of the After Action Review it was determined official notification to response and regulatory agencies still needed to be made.
"No detectable airborne contamination occurred.
"No contaminated personnel occurred."
The fire was detected in destruction debris under a pile of concrete rubble in the reactor building. The fire was initially extinguished at 1045 PDT by onsite personnel. The fire reflashed two additional times and was extinguished until it was determined to by completely extinguished at 1340 PDT on 04/05/08 and the licensee terminated the Unusual Event. The event was declared and logged by the ISFSI Technician on 04/05/08, who is also the onsite Emergency Coordinator when an emergency is declared. It was discovered on the morning of 04/07/08 that the emergency declaration was made and logged on 04/05/08 at 1140 PDT, but no offsite regulatory notifications had been made.
The licensee notified the local NRC Inspector (Garcia) and Region 4 (Keller). The licensee will be notifying the state and local emergency response organizations.