Event Notification Report for April 14, 2010
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
04/13/2010 - 04/14/2010
Power Reactor
Event Number: 45840
Facility: PILGRIM
Region: 1 State: MA
Unit: [1] [] []
RX Type: [1] GE-3
NRC Notified By: KENNETH KNELL
HQ OPS Officer: DONG HWA PARK
Region: 1 State: MA
Unit: [1] [] []
RX Type: [1] GE-3
NRC Notified By: KENNETH KNELL
HQ OPS Officer: DONG HWA PARK
Notification Date: 04/14/2010
Notification Time: 20:54 [ET]
Event Date: 04/14/2010
Event Time: 17:03 [EDT]
Last Update Date: 04/14/2010
Notification Time: 20:54 [ET]
Event Date: 04/14/2010
Event Time: 17:03 [EDT]
Last Update Date: 04/14/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
MEL GRAY (R1DO)
MEL GRAY (R1DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
LOSS OF EMERGENCY RESPONSE ORGANIZATION IN-PLANT NOTIFICATION SYSTEM
"At 1703 EDT on Wednesday, April 14, 2010, the Pilgrim Nuclear Power Station (PNPS) determined that the in-plant paging/notification systems used to notify the Emergency Response Organization (ERO) were not functioning as designed or required by the Emergency Plan. Specifically, the in-plant notification system which is comprised of the Computerized Automated Notification System (CANS) and back-up system (BEEPS) could not be determined to function reliably or consistently during an Emergency Plan drill or event.
"Compensatory measures exist to contact members of the ERO by procedure via call-trees through the operations and security organizations at the site. Immediate actions are being taken to restore the system to functional status working with the service provider for the in-plant paging/notification systems.
"It cannot be determined at the time of this notification as to when the system will be restored to full, functional status.
"The licensee has notified the NRC Senior Resident Inspector."
"At 1703 EDT on Wednesday, April 14, 2010, the Pilgrim Nuclear Power Station (PNPS) determined that the in-plant paging/notification systems used to notify the Emergency Response Organization (ERO) were not functioning as designed or required by the Emergency Plan. Specifically, the in-plant notification system which is comprised of the Computerized Automated Notification System (CANS) and back-up system (BEEPS) could not be determined to function reliably or consistently during an Emergency Plan drill or event.
"Compensatory measures exist to contact members of the ERO by procedure via call-trees through the operations and security organizations at the site. Immediate actions are being taken to restore the system to functional status working with the service provider for the in-plant paging/notification systems.
"It cannot be determined at the time of this notification as to when the system will be restored to full, functional status.
"The licensee has notified the NRC Senior Resident Inspector."
Power Reactor
Event Number: 45841
Facility: PRAIRIE ISLAND
Region: 3 State: MN
Unit: [] [2] []
RX Type: [1] W-2-LP,[2] W-2-LP
NRC Notified By: JOHN KEMPKES
HQ OPS Officer: VINCE KLCO
Region: 3 State: MN
Unit: [] [2] []
RX Type: [1] W-2-LP,[2] W-2-LP
NRC Notified By: JOHN KEMPKES
HQ OPS Officer: VINCE KLCO
Notification Date: 04/14/2010
Notification Time: 21:00 [ET]
Event Date: 04/14/2010
Event Time: 16:20 [CDT]
Last Update Date: 04/14/2010
Notification Time: 21:00 [ET]
Event Date: 04/14/2010
Event Time: 16:20 [CDT]
Last Update Date: 04/14/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
Person (Organization):
STEVE ORTH (R3DO)
STEVE ORTH (R3DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | Y | 83 | Power Operation | 83 | Power Operation |
OFFSITE NOTIFICATIONS DUE TO FISH KILL AND CHEMICAL RELEASE
"The licensee notified the State of Minnesota Department of Natural Resources and the Minnesota Pollution Control Agency (MPCA) at 1620 CDT of a fish kill that occurred during a change to the plant circulating water system. Approximately 300-400 fish were found dead in the discharge canal during inspections related to a Zebra Mussel Treatment in progress. The fish included carp, green sunfish, bluegill, carpsuckers, and gizzard shad. The cause appears to be related to temperature changes in the canal as the external circulating water system was manipulated to achieve the 82-84 deg (F) condenser inlet temperatures needed for the treatment and a reduction in plant blowdown flow to the river required by the site discharge permit. The dead fish were contained in discharge canal due to a net that was deployed on Monday in preparation for zebra mussel treatment conducted today (treatment started at 1030 am). Fish in the discharge canal have been dead for 12 to 24 hours. The fish kill is unrelated to the zebra mussel treatment mulluscide addition and did not extend to state waterways.
"During the Zebra Mussel treatment, detectable mulluscide was found at the sluice gates to the Mississippi River at 1607 and the chemical addition was stopped The chemical is normally neutralized by addition of clay prior to reaching the sluice gates. The 1607 and 1620 samples at the sluice gates showed 0.6 ppm and 0.8 ppm of CL-2005 mulluscide and the 1730 sample had returned to non-detectable. The plant notified the Minnesota Department of Emergency Management of the chemical release at 1856, event number 110570. The MPCA will be notified during business hours tomorrow.
"A news release is not planned."
The licensee notified the NRC Resident Inspector.
"The licensee notified the State of Minnesota Department of Natural Resources and the Minnesota Pollution Control Agency (MPCA) at 1620 CDT of a fish kill that occurred during a change to the plant circulating water system. Approximately 300-400 fish were found dead in the discharge canal during inspections related to a Zebra Mussel Treatment in progress. The fish included carp, green sunfish, bluegill, carpsuckers, and gizzard shad. The cause appears to be related to temperature changes in the canal as the external circulating water system was manipulated to achieve the 82-84 deg (F) condenser inlet temperatures needed for the treatment and a reduction in plant blowdown flow to the river required by the site discharge permit. The dead fish were contained in discharge canal due to a net that was deployed on Monday in preparation for zebra mussel treatment conducted today (treatment started at 1030 am). Fish in the discharge canal have been dead for 12 to 24 hours. The fish kill is unrelated to the zebra mussel treatment mulluscide addition and did not extend to state waterways.
"During the Zebra Mussel treatment, detectable mulluscide was found at the sluice gates to the Mississippi River at 1607 and the chemical addition was stopped The chemical is normally neutralized by addition of clay prior to reaching the sluice gates. The 1607 and 1620 samples at the sluice gates showed 0.6 ppm and 0.8 ppm of CL-2005 mulluscide and the 1730 sample had returned to non-detectable. The plant notified the Minnesota Department of Emergency Management of the chemical release at 1856, event number 110570. The MPCA will be notified during business hours tomorrow.
"A news release is not planned."
The licensee notified the NRC Resident Inspector.