Event Notification Report for January 4, 2005

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
01/03/2005 - 01/04/2005

** EVENT NUMBERS **

General Information or Other	Event Number: 41300
Rep Org: MA RADIATION CONTROL PROGRAM Licensee: UNIVERSITY OF MASS - AMHERST Region: 1 City: AMHERST State: MA County: License #: 60-0107 Agreement: Y Docket: NRC Notified By: JOHN SUMARES HQ OPS Officer: JEFF ROTTON	Notification Date: 12/30/2004 Notification Time: 11:25 [ET] Event Date: 12/23/2004 Event Time: 15:30 [EST] Last Update Date: 12/30/2004
Emergency Class: NON EMERGENCY 10 CFR Section: AGREEMENT STATE	Person (Organization): JAMES TRAPP (R1) ELMO COLLINS (NMSS) AARON DANIS (TAS)

Event Text

AGREEMENT STATE LOST RADIOACTIVE SOURCE

"University of Mass - Amherst called [Massachusetts Radiation Control Program] to report a missing Ni-63 source in an ECD detector. A Varian Model 3700 gas chromatograph [GC] machine was due for leak testing on 11/15/04. The unit could not be found and was presumed missing. The unit's ECD contained a Ni-63 source (8 milliCurie) and had serial number A3240. In Sept / Oct of 2004, laboratory equipment was moved and / or sent to the trash. It is suspected that the missing GC was mistakenly sent out for disposal at that time, and in Nov. 2004, the licensee determined the unit was missing."

The calibration date of the source activity was not known at the time of the report. The last known confirmed inventory of the device was when the last leak test was performed in May 2004

Power Reactor	Event Number: 41302
Facility: DIABLO CANYON Region: 4 State: CA Unit: [1] [2] [ ] RX Type: [1] W-4-LP,[2] W-4-LP NRC Notified By: JOY SKAGGS HQ OPS Officer: JEFF ROTTON	Notification Date: 12/31/2004 Notification Time: 06:27 [ET] Event Date: 12/31/2004 Event Time: 03:15 [PST] Last Update Date: 01/03/2005
Emergency Class: NON EMERGENCY 10 CFR Section: 50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE	Person (Organization): TOM FARNHOLTZ (R4)

Unit	SCRAM Code	RX CRIT	Initial PWR	Initial RX Mode	Current PWR	Current RX Mode
1	N	Y	100	Power Operation	100	Power Operation
2	N	Y	100	Power Operation	100	Power Operation

Event Text

LOSS OF EMERGENCY NOTIFICATION SIRENS

"Loss of 21 emergency notification sirens due to a loss of power. A rain storm in San Luis Obispo county resulted in a loss of a local substation. This substation supplies power to 21 of [over 400] emergency sirens. Investigation and repair of the substation is in progress."

This siren outage eliminates emergency notification siren coverage in one specific area. The local sheriff department has been notified to implement alternate notification protocols until the sirens in that area are operable. The licensee will notify the NRC Resident Inspector.

* * * UPDATE FROM DIABLO CANYON (J. WELSCH) TO M. RIPLEY 0945 EST 12/31/04 * * *

Power was restored to the substation and the 21 affected emergency notification sirens have been returned to service.

The licensee will notify the NRC Resident Inspector. Notified R4 DO (T. Farnholtz).

* * * UPDATE FROM DIABLO CANYON PARKER TO MACKINNON 1620 EST 01/03/05 * * *

Correction: Total number of emergency sirens at Diablo Canyon site is 131 sirens not 400 sirens. R4DO (Linda Smith) notified.

The NRC Resident Inspector was notified of this update.

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