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Event Notification Report for October 09, 2017

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
10/08/2017 - 10/09/2017

EVENT NUMBERS
5300453005

Power Reactor
Event Number: 53004
Facility: POINT BEACH
Region: 3     State: WI
Unit: [1] [2] []
RX Type: [1] W-2-LP,[2] W-2-LP
NRC Notified By: DENNY SMITH
HQ OPS Officer: BETHANY CECERE
Notification Date: 10/09/2017
Notification Time: 09:15 [ET]
Event Date: 10/09/2017
Event Time: 07:37 [CDT]
Last Update Date: 10/09/2017
Emergency Class: UNUSUAL EVENT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
Person (Organization):
DAVID HILLS (R3DO)
CYNTHIA PEDERSON (R3 R)
BRIAN HOLIAN (NRR)
MICHAEL F. KING (NRR)
BERNARD STAPLETON (IRD)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N N 0 Cold Shutdown 0 Cold Shutdown
2 N Y 100 Power Operation 100 Power Operation
Event Text
UNUSUAL EVENT DECLARATION FOR TOXIC GAS SPILL

At 0737 CDT on 10/9/17, Point Beach declared an Unusual Event with Emergency Action Level HU 3.1 due to report of toxic gas from a spill in a service building within the protected area. The spill is contained and cleanup operations are in progress. The spill was not in a contaminated area or vital area. The janitorial worker injured while mixing cleaning chemicals in a closet was taken to the hospital.

The licensee notified the NRC Resident Inspector.

Notified DHS SWO, FEMA Operations Center, DHS NICC, FEMA NWC (email), DHS Nuclear SSA (email), and FEMA NRCC SASC (email).

* * * UPDATE ON 10/9/17 AT 1111 EDT FROM DENNY SMITH TO BETHANY CECERE * * *

"Point Beach has terminated the Unusual Event at 0944 [CDT] on 10/9/2017. The Unusual Event condition is no longer warranted.

"The NRC Resident Inspector has been notified."

Notified R3DO (Hills), NRR EO (King), IRD (Stapleton), DHS SWO, FEMA Operations Center, DHS NICC, FEMA NWC (email), DHS Nuclear SSA (email), and FEMA NRCC SASC (email).


Power Reactor
Event Number: 53005
Facility: MILLSTONE
Region: 1     State: CT
Unit: [] [] [3]
RX Type: [1] GE-3,[2] CE,[3] W-4-LP
NRC Notified By: NORMAN KUZEL
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 10/09/2017
Notification Time: 14:23 [ET]
Event Date: 10/09/2017
Event Time: 14:05 [EDT]
Last Update Date: 10/09/2017
Emergency Class: UNUSUAL EVENT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
Person (Organization):
DON JACKSON (R1DO)
BERNARD STAPLETON (IRD)
DAVID LEW (R1 D)
BRIAN HOLIAN (NRR)
MICHAEL F. KING (NRR)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
3 N Y 100 Power Operation 100 Power Operation
Event Text
NOTIFICATION OF UNUSUAL EVENT - FLAMMABLE GAS IN THE TURBINE BUILDING

While troubleshooting a hydrogen differential pressure gauge, operators found a hydrogen concentration greater than the lower explosive limit (4% hydrogen concentration). The licensee evacuated the turbine building. The licensee is ventilating the area to allow personnel access to isolate and repair the leak. The plant Fire Brigade is on standby.

This event was declared for GU-2: release of toxic or flammable gas.

The main generator pressure and hydrogen concentration are stable.

The licensee notified the NRC Resident Inspector.

Notified DHS SWO, FEMA Operations Center, DHS NICC, FEMA NWC (email), DHS Nuclear SSA (email), and FEMA NRCC SASC (email).

* * * UPDATE AT 1630 EDT ON 10/9/2017 FROM NORMAN KUZEL TO MARK ABRAMOVITZ * * *

The unusual event was terminated at 1617 EDT because the leak was isolated and the hydrogen concentration in the Hydrogen Control Cabinet was zero percent.

The licensee notified the NRC Resident Inspector.

Notified the R1DO (Jackson), IRD MOC (Stapleton), NRR (King), DHS SWO, FEMA Operations Center, DHS NICC, FEMA NWC (email), DHS Nuclear SSA (email), and FEMA NRCC SASC (email).