Event Notification Report for October 01, 2001
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
09/30/2001 - 10/01/2001
EVENT NUMBERS
38335383363833738664
Fuel Cycle Facility
Event Number: 38335
Facility: PADUCAH GASEOUS DIFFUSION PLANT
Region: 3 State: KY
Unit: [] [] []
RX Type: URANIUM ENRICHMENT FACILITY
Comments: 2 DEMOCRACY CENTER
6903 ROCKLEDGE DRIVE
BETHESDA, MD 20817 (301)564-3200
NRC Notified By: TONY HUDSON
HQ OPS Officer: LEIGH TROCINE
Region: 3 State: KY
Unit: [] [] []
RX Type: URANIUM ENRICHMENT FACILITY
Comments: 2 DEMOCRACY CENTER
6903 ROCKLEDGE DRIVE
BETHESDA, MD 20817 (301)564-3200
NRC Notified By: TONY HUDSON
HQ OPS Officer: LEIGH TROCINE
Notification Date: 10/01/2001
Notification Time: 12:59 [ET]
Event Date: 10/01/2001
Event Time: 02:00 [CDT]
Last Update Date: 10/01/2001
Notification Time: 12:59 [ET]
Event Date: 10/01/2001
Event Time: 02:00 [CDT]
Last Update Date: 10/01/2001
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
DAVID HILLS (R3)
JOHN HICKEY (NMSS)
DAVID HILLS (R3)
JOHN HICKEY (NMSS)
ACTIVATION OF THE HIGH VOLTAGE UF6 RELEASE DETECTION SYSTEM DUE TO A UF6 LEAK TO ATMOSPHERE
The following text is a portion of a facsimile received from Paducah personnel:
"At 0200 CDT, on 10-01-01, the Plant Shift Superintendent was notified of an activation of the High Voltage UF6 Release Detection System at the C-315 Tails Withdrawal Building. Two UF6 detector heads had alarmed due to a UF6 leak to atmosphere from the rupture disc assembly for the 'B' UF6 accumulator. Operations isolated and pulled down the affected system. The Plant Emergency Squad responded and closed the rupture disc isolation valves. High volume air samples were taken with negative results. Health Physics surveyed the area in C-315 and determined that contamination was limited to the housing near the accumulator. The C-315 building was then released to operations with controls on the area of contamination."
"This event is reportable to the NRC per the Safety Analysis Report, section 6.9, table 1, criteria J.2, safety system actuation due to a valid signal as a 24-hour event notification."
"The NRC Senior Resident Inspector has been notified of this event."
"PGDP Problem Report No. ATR-01-5077; PGDP Event Report No. PAD-2001-040; Event Worksheet: [38335]
Responsible Division; Operation."
***** UPDATE FROM KEVIN BEASLEY TO LEIGH TROCINE AT 2105 EDT ON 10/01/01 *****
The following text is a portion of a facsimile received from Paducah personnel:
"Further investigation determined that the UF6 was released from a tube that connected the rupture disc assembly to a calibration buggy. The connection tube had come in contact with a heater that melted a section of the tube allowing the UF6 release."
Paducah personnel notified the NRC resident inspector. The NRC operations officer notified the R3DO (David Hills) and NMSS EO (Patricia Holahan).
The following text is a portion of a facsimile received from Paducah personnel:
"At 0200 CDT, on 10-01-01, the Plant Shift Superintendent was notified of an activation of the High Voltage UF6 Release Detection System at the C-315 Tails Withdrawal Building. Two UF6 detector heads had alarmed due to a UF6 leak to atmosphere from the rupture disc assembly for the 'B' UF6 accumulator. Operations isolated and pulled down the affected system. The Plant Emergency Squad responded and closed the rupture disc isolation valves. High volume air samples were taken with negative results. Health Physics surveyed the area in C-315 and determined that contamination was limited to the housing near the accumulator. The C-315 building was then released to operations with controls on the area of contamination."
"This event is reportable to the NRC per the Safety Analysis Report, section 6.9, table 1, criteria J.2, safety system actuation due to a valid signal as a 24-hour event notification."
"The NRC Senior Resident Inspector has been notified of this event."
"PGDP Problem Report No. ATR-01-5077; PGDP Event Report No. PAD-2001-040; Event Worksheet: [38335]
Responsible Division; Operation."
***** UPDATE FROM KEVIN BEASLEY TO LEIGH TROCINE AT 2105 EDT ON 10/01/01 *****
The following text is a portion of a facsimile received from Paducah personnel:
"Further investigation determined that the UF6 was released from a tube that connected the rupture disc assembly to a calibration buggy. The connection tube had come in contact with a heater that melted a section of the tube allowing the UF6 release."
Paducah personnel notified the NRC resident inspector. The NRC operations officer notified the R3DO (David Hills) and NMSS EO (Patricia Holahan).
Power Reactor
Event Number: 38336
Facility: PERRY
Region: 3 State: OH
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: ROBERT AYER
HQ OPS Officer: LEIGH TROCINE
Region: 3 State: OH
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: ROBERT AYER
HQ OPS Officer: LEIGH TROCINE
Notification Date: 10/01/2001
Notification Time: 19:14 [ET]
Event Date: 10/01/2001
Event Time: 16:00 [EDT]
Last Update Date: 10/01/2001
Notification Time: 19:14 [ET]
Event Date: 10/01/2001
Event Time: 16:00 [EDT]
Last Update Date: 10/01/2001
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):
DAVID HILLS (R3)
DAVID HILLS (R3)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
OFFSITE NOTIFICATION REGARDING OUTFALL STRUCTURE SAMPLES IN EXCESS OF RELEASE LIMITS
The following text is a portion of a facsimile received from the licensee.
"Injection of [a] microbiological agent commenced at 1140 hours to treat the station raw water systems for Zebra Mussel infestation. [The] agent used was Spectrus CT-1300 (Clamtrol). Injection was being made at the station intake structure, and [a] detoxification agent was being added at the outfall structure prior to returning to Lake Erie. At 1600 hours, it was discovered that samples taken at the outfall structure indicated concentration of this chemical of 0.35 ppm which is in excess of the release limit of 0.04 ppm contained in the Chemical Permit. This event requires notification of the US EPA. [The] feed rate of the Clamtrol was decreased, and [the] feed rate of the detoxification agent was increased. Injection of the chemical was terminated at approximately 1740 hours. Sampling is continuing to determine when compliance with the Chemical Permit is reestablished."
The licensee notified the NRC resident inspector and plans to notify the US EPA.
The following text is a portion of a facsimile received from the licensee.
"Injection of [a] microbiological agent commenced at 1140 hours to treat the station raw water systems for Zebra Mussel infestation. [The] agent used was Spectrus CT-1300 (Clamtrol). Injection was being made at the station intake structure, and [a] detoxification agent was being added at the outfall structure prior to returning to Lake Erie. At 1600 hours, it was discovered that samples taken at the outfall structure indicated concentration of this chemical of 0.35 ppm which is in excess of the release limit of 0.04 ppm contained in the Chemical Permit. This event requires notification of the US EPA. [The] feed rate of the Clamtrol was decreased, and [the] feed rate of the detoxification agent was increased. Injection of the chemical was terminated at approximately 1740 hours. Sampling is continuing to determine when compliance with the Chemical Permit is reestablished."
The licensee notified the NRC resident inspector and plans to notify the US EPA.
Power Reactor
Event Number: 38337
Facility: PERRY
Region: 3 State: OH
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: ROBERT AYER
HQ OPS Officer: LEIGH TROCINE
Region: 3 State: OH
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: ROBERT AYER
HQ OPS Officer: LEIGH TROCINE
Notification Date: 10/01/2001
Notification Time: 19:14 [ET]
Event Date: 10/01/2001
Event Time: 15:30 [EDT]
Last Update Date: 10/01/2001
Notification Time: 19:14 [ET]
Event Date: 10/01/2001
Event Time: 15:30 [EDT]
Last Update Date: 10/01/2001
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
DAVID HILLS (R3)
DAVID HILLS (R3)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
24-HOUR REPORT REGARDING AN OPERATING LICENSE CONDITION VIOLATION (POTENTIAL MAXIMUM POWER LEVEL VIOLATION)
The following text is a portion of a facsimile received from the licensee.
"This report is being made in accordance with Perry Nuclear Power Plant (PNPP) Unit 1 Operating License Condition 2.F, as a potential violation of the Maximum Power Level of 3758 [MWth] as described in License Condition 2.C(1)."
"General Electric (GE) report titled, 'Impact of Steam Carryover Fraction on Process Computer Heat Balance Calculations, September 2001,' documents a non-conservative assumption for moisture (carryover) used in the calculation of core thermal power. The assumed carryover fraction of 0.1% was discovered to be closer to 0.0% (non-conservative) in later model GE BWRs."
"Following initial review by PNPP staff, moisture carryover has not been tested at Perry since the initial startup test program, and the plant was potentially affected by the non-conservative core thermal power calculation results presented by GE. The plant is unable to perform carryover testing at this time to provide a more accurate MWth bias; therefore, until testing can be accomplished a conservative 3 MWth bias is suspected. Additionally, the plant staff continues to investigate the overall effect of the moisture carryover term within the Heat Balance equation."
"PNPP Unit 1 has an administrative 8-hour average power limit of 3754 MWth (reactor power reduction of 4 MWth) that was conservatively implemented on 09/20/01 when the plant initially identified the potential concern in the corrective action program."
The licensee notified the NRC resident inspector.
(Refer to event numbers 38330, 38340, 38344, 38445, 38347, 38349, 38356, and 38357 for similar events at Fermi, Hope Creek, Grand Gulf, Columbia Generating Station, Limerick 2, River Bend, Clinton, and Limerick 1.)
The following text is a portion of a facsimile received from the licensee.
"This report is being made in accordance with Perry Nuclear Power Plant (PNPP) Unit 1 Operating License Condition 2.F, as a potential violation of the Maximum Power Level of 3758 [MWth] as described in License Condition 2.C(1)."
"General Electric (GE) report titled, 'Impact of Steam Carryover Fraction on Process Computer Heat Balance Calculations, September 2001,' documents a non-conservative assumption for moisture (carryover) used in the calculation of core thermal power. The assumed carryover fraction of 0.1% was discovered to be closer to 0.0% (non-conservative) in later model GE BWRs."
"Following initial review by PNPP staff, moisture carryover has not been tested at Perry since the initial startup test program, and the plant was potentially affected by the non-conservative core thermal power calculation results presented by GE. The plant is unable to perform carryover testing at this time to provide a more accurate MWth bias; therefore, until testing can be accomplished a conservative 3 MWth bias is suspected. Additionally, the plant staff continues to investigate the overall effect of the moisture carryover term within the Heat Balance equation."
"PNPP Unit 1 has an administrative 8-hour average power limit of 3754 MWth (reactor power reduction of 4 MWth) that was conservatively implemented on 09/20/01 when the plant initially identified the potential concern in the corrective action program."
The licensee notified the NRC resident inspector.
(Refer to event numbers 38330, 38340, 38344, 38445, 38347, 38349, 38356, and 38357 for similar events at Fermi, Hope Creek, Grand Gulf, Columbia Generating Station, Limerick 2, River Bend, Clinton, and Limerick 1.)
General Information or Other
Event Number: 38664
Rep Org: MISSISSIPPI DIV OF RAD HEALTH
Licensee: H&H X-RAY SERVICES
Region: 2
City: State: MS
County:
License #: MS622-01
Agreement: Y
Docket:
NRC Notified By: B. J. SMITH
HQ OPS Officer: JOHN MacKINNON
Licensee: H&H X-RAY SERVICES
Region: 2
City: State: MS
County:
License #: MS622-01
Agreement: Y
Docket:
NRC Notified By: B. J. SMITH
HQ OPS Officer: JOHN MacKINNON
Notification Date: 01/31/2002
Notification Time: 16:06 [ET]
Event Date: 10/01/2001
Event Time: 12:00 [CST]
Last Update Date: 01/31/2002
Notification Time: 16:06 [ET]
Event Date: 10/01/2001
Event Time: 12:00 [CST]
Last Update Date: 01/31/2002
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
MIKE ERNSTES (R2)
JOHN HICKEY (NMSS)
MIKE ERNSTES (R2)
JOHN HICKEY (NMSS)
OVEREXPOSURE
The film badges of two radiographers working for H& H X-Ray Services were processed for the month of October, 2001. The readings of the film badges for the month of October were 7909 mrem and 3825 mrem. H & H X-Ray Services individuals were using a 68 curie (Iridium-192) radiography camera in Monroe, LA. The State of Mississippi Division of Radiation Health is following up on this report.
The film badges of two radiographers working for H& H X-Ray Services were processed for the month of October, 2001. The readings of the film badges for the month of October were 7909 mrem and 3825 mrem. H & H X-Ray Services individuals were using a 68 curie (Iridium-192) radiography camera in Monroe, LA. The State of Mississippi Division of Radiation Health is following up on this report.