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Event Notification Report for July 11, 2015

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
07/10/2015 - 07/11/2015

EVENT NUMBERS
51222

Power Reactor
Event Number: 51222
Facility: SALEM
Region: 1     State: NJ
Unit: [1] [] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: MARK FIOCCO
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 07/11/2015
Notification Time: 18:46 [ET]
Event Date: 07/11/2015
Event Time: 18:22 [EDT]
Last Update Date: 07/11/2015
Emergency Class: UNUSUAL EVENT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
Person (Organization):
CHRISTOPHER CAHILL (R1DO)
DAN DORMAN (R1RA)
JENNIFER UHLE (NRR)
BILL GOTT (IRD)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N Y 100 Power Operation 100 Power Operation
Event Text
UNUSUAL EVENT FOR A CO2 RELEASE AFFECTING NORMAL PLANT OPERATIONS

"At 1810 [EDT], the Salem unit 1 control room received an alarm that a CO2 discharge occurred in the Diesel Fuel Oil Transfer Pump Rooms on the 84 foot elevation in the Auxiliary Building. The control room referred to the OHA [Overhead Annunciator] response procedure S1.OP-AR.ZZ.0001 for OHA A-8, 'Fire Prot CO2/Halon Disch.' The ARP [Alarm Response Procedure] directed implementation of the S1.OP-AB.Fire-0001 procedure and control room ventilation was shifted to the 'fire outside' mode of operation. The on site fire protection team responded to the area and confirmed the CO2 discharge. The [on site] fire department determined that there was no fire and no smoke in the area of the discharge. The Fire Brigade Liaison inspected the equipment and determined that there was no adverse impact to any equipment located in the vicinity of the discharge and no operational impact on the plant.

"All systems responded as expected.

"There were no personnel injuries as a result of the discharge.

"Atmosphere in the area of the discharge has been verified normal and no restrictions to the area are in place."

The cause of the discharge was determined to be a faulty detector. No off site response was requested and an hourly firewatch will be initiated until the detector is repaired.

The licensee will notify the NRC Resident Inspector and has notified the states of Delaware and New Jersey.

Notified DHS, FEMA Operations Center, and NICC and e-mailed Nuclear SSA and FEMA National Watch Center.

* * * UPDATE AT 2206 ON 7/11/15 FROM MARK FIOCCO TO MARK ABRAMOVITZ * * *

The Unusual Event was terminated at 2154 EDT.

The licensee notified the NRC Resident Inspector and the states of Delaware and New Jersey.

Notified IRD (Stapleton), R1DO (Cahill), NRR (Morris), DHS, FEMA Operations Center, and NICC and e-mailed Nuclear SSA and FEMA National Watch Center.