| U.S. Nuclear Regulatory Commission
Operations Center Event Reports For
03/01/2006 - 03/02/2006 ** EVENT NUMBERS ** |
 | Power Reactor | Event Number: 42370 | Facility: SAN ONOFRE
Region: 4 State: CA
Unit: [1] [ ] [ ]
RX Type: [1] W-3-LP,[2] CE,[3] CE
NRC Notified By: LEE KELLY
HQ OPS Officer: JOHN KNOKE | Notification Date: 02/23/2006
Notification Time: 15:07 [ET]
Event Date: 02/23/2006
Event Time: 04:00 [PST]
Last Update Date: 03/01/2006 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
| Person (Organization):
GREG PICK (R4)
BILL MAIER (R4)
|
| Unit | SCRAM Code | RX CRIT | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode | | 1 | N | N | 0 | Decommissioned | 0 | Decommissioned | Event Text MINOR LEAKAGE OF WASTEWATER FROM TRANSPORT TRUCK
"On February 22, 2006, at 1000 PST, two tankers containing wastewater with trace levels of radioactivity departed San Onofre Nuclear Generating Station (SONGS) Unit 1 Industrial Site for Clive, Utah. Each truck contained about 4500 gallons of water. At about 0400 PST February 23, 2006, SCE was notified by the trucking company [Triad Transport Company] that minor leakage from a valve on top of one of the trucks had been observed. The leakage was observed while the truck was stopped in Parawan, Utah approximately 4 hours from its destination.
"The driver of the truck immediately notified his management who traveled to the site, identified the origin of the leak as spray from a valve on top of the truck, relieved the tank pressure from a vent valve, and stopped the leak. Dampness was observed on the ground beside the tanker. Unconfirmed measurements indicate radiation levels are near background.
"SCE has dispatched a team to the site to coordinate remediation efforts as necessary. The second tanker has arrived at the site in Clive, Utah and no leakage was observed during receipt inspection. The Director of the Utah's Division of Radiation Control and the NRC Resident Inspectors have been notified of this occurrence. At the time of this report, Unit 1 was undergoing decommissioning."
The activity from the radionuclides in the entire truck totaled 70.9 mCi, and primarily consisted of Cs-137 (41 mCi), Ni-63 (15 mCi), and Co-60 (5 mCi). The transport company notified the National Response Center. The truck traveled thru 4 States: CA, NV, AZ UT.
* * * UPDATE FROM C. WILLIAMS TO M. RIPLEY 1607 EST 03/01/06 * * *
"On February 23, 2006, SCE notified the NRC that a small leak had been identified from a tanker that was transporting wastewater with trace levels of radioactivity from SONGS to Clive, Utah. That incident was reported to the NRC in accordance with 10CFR50.72.(b)(2)(xi) and the Utah Division of Radiation Control.
"SCE is updating this report to provide the NRC with the following remediation status:
"1. SCE has decontaminated the tanker exterior and the leaking flange has been repaired. On February 24, 2006, the tanker completed its trip to the disposal site in Clive, Utah. Enroute, SCE personnel followed the tanker and inspected the flange at planned stops every hour. No leakage was observed and the tanker was received at the disposal facility without further incident.
"2. SCE surveyed the truck stop in Parowan and identified two contaminated locations. The first was an asphalt area near the diesel pumps; the second was a gravel area where the truck had parked (about 150 yards from the diesel pumps). All contaminated materials including asphalt, concrete, dirt, and gravel were removed and shipped to the disposal site in Clive, Utah. No detectable levels of licensed material remain at the
truck stop.
"3. SCE surveyed personnel at the truck stop and determined that one individual had been contaminated. The pants leg of the trucking supervisor who had climbed on top of the truck to stop the leak had been contaminated (SCE took possession of the contaminated garment). There was no contamination on his skin.
"4. Approval was obtained from the Utah Division of Radiation Control, the remediated areas of the truck stop were backfilled.
"5. SCE is continuing to investigate the cause of the flange leak and will implement appropriate corrective actions.
"The NRC resident Inspectors have been notified of this update and will be provided with a copy of this update."
Notified R4 DO (J. Whitten) and NMSS EO (S. Flanders) |
| Power Reactor | Event Number: 42378 | Facility: INDIAN POINT
Region: 1 State: NY
Unit: [2] [ ] [ ]
RX Type: [2] W-4-LP,[3] W-4-LP
NRC Notified By: STEPHEN PRUSSMAN
HQ OPS Officer: MIKE RIPLEY | Notification Date: 03/01/2006
Notification Time: 18:13 [ET]
Event Date: 03/01/2006
Event Time: 14:35 [EST]
Last Update Date: 03/01/2006 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
| Person (Organization):
CHRISTOPHER CAHILL (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 Standby | Event Text MANUAL REACTOR TRIP AS A RESULT OF DROPPED CONTROL RODS
"On March 1, 2006, at 1435 hours, the Reactor Protection System was manually actuated while at 100 percent power upon indication of 12 dropped rods. All safety systems actuated as required and safety equipment operated as expected. There were eight control rods that did not indicate full insertion. One control rod had a bad rod bottom light bulb and the other seven control rods require calibration to indicate full insertion. Auxiliary Feedwater started as expected. The Emergency Diesel Generators did not start as offsite power remained available and stable. No primary or secondary relief valves lifted. The plant is in Hot Standby at normal temperature and pressure with residual heat removal using auxiliary feedwater and normal heat removal through the condenser via steam dumps. There was no radiation released.
"An investigation revealed that a manual disconnect switch for power control cabinet 1AC was open and scaffold work was being performed in the area. Cabinet 1AC is the power supply for the 12 dropped rods. The event is still under investigation and a post trip review is being conducted."
The licensee notified the State and the NRC Resident Inspector. |
| Power Reactor | Event Number: 42379 | Facility: SUSQUEHANNA
Region: 1 State: PA
Unit: [1] [2] [ ]
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: RICH KLINEFELTER
HQ OPS Officer: MIKE RIPLEY | Notification Date: 03/01/2006
Notification Time: 22:22 [ET]
Event Date: 03/01/2006
Event Time: 21:27 [EST]
Last Update Date: 03/02/2006 | Emergency Class: ALERT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
| Person (Organization):
CHRISTOPHER CAHILL (R1)
MELVYN LEACH (IRD)
JOSE CALVO (NRR)
JIM DYER (NRR)
SAM COLLINS (RA)
|
| Unit | SCRAM Code | RX CRIT | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode | | 1 | N | Y | 93 | Power Operation | 93 | Power Operation | | 2 | N | Y | 100 | Power Operation | 100 | Power Operation | Event Text ALERT DECLARED DUE TO HALON DISCHARGE IN SECURITY CONTROL CENTER
"At 21:27 on March 1, 2006, a Susquehanna security officer evacuated the security control center and notified the control room of a fire alarm and actuation of the Halon fire suppression system. The actuation of this system resulted in a potential atmosphere immediately dangerous to life and health [IDLH] of personnel in a plant vital area. The fire brigade responded to the event, donning respirators to enter the building, but saw no visible smoke or flames. As a result of an IDLH atmosphere in a plant vital area, Susquehanna entered the emergency plan at the Alert level."
The NRC Resident Inspector was informed and responded to the site. The licensee notified state, local and other government agencies. The licensee plans on issuing a press release.
Notified DHS (Hill), FEMA (Liggett), DOE (Bailey), EPA (National Response Center, Baumgartner), HHS (Riggs), and USDA (D. Timmons).
* * * UPDATE AT 0530 EST ON 3/2/06 FROM RICH KLINEFELTER TO S. SANDIN * * *
The licensee terminated the Alert 0433 EST based on the following:
Habitability was restored to the security control center by
1. Stopping the Halon discharge
2. Ventilating the affected area
3. Restoring access
4. Isolating Halon sources in the adjacent area to prevent a recurrence and,
5. Posting Fire Watches.
The licensee informed State/local agencies and the on-site NRC Resident Inspector.
Notified Region I (Perry), NRR EO (Calvo), IRD (Leach), DHS (Hill), FEMA (Liggett), DOE (Pauley), EPA (National Response Center, McCrossen), HHS (H. Peagler), and USDA (D. Timmons). | |