Event Notification Report for January 12, 2010
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
01/11/2010 - 01/12/2010
Power Reactor
Event Number: 45620
Facility: COOK
Region: 3 State: MI
Unit: [1] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: BEN HUFFMAN
HQ OPS Officer: HOWIE CROUCH
Region: 3 State: MI
Unit: [1] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: BEN HUFFMAN
HQ OPS Officer: HOWIE CROUCH
Notification Date: 01/11/2010
Notification Time: 14:00 [ET]
Event Date: 01/12/2010
Event Time: 04:00 [EST]
Last Update Date: 01/12/2010
Notification Time: 14:00 [ET]
Event Date: 01/12/2010
Event Time: 04:00 [EST]
Last Update Date: 01/12/2010
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):
CHRISTINE LIPA (R3DO)
CHRISTINE LIPA (R3DO)
| 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 |
UNAVAILABILITY OF TSC VENTILATION SYSTEM AND CHARCOAL FILTER FOR SCHEDULED MAINTENANCE
"The Cook Nuclear Plant (CNP) Technical Support Center (TSC) ventilation system air conditioning and filtration systems are scheduled to be removed from service for scheduled preventive maintenance at 0400 on January 12, 2010.
"Under certain accident conditions, the TSC may become unavailable due to the inability of the filtration system to maintain a habitable atmosphere. Compensatory measures exist to relocate TSC personnel to the unaffected unit's control room if necessary based upon results of procedurally required monitoring of TSC radiological conditions.
"The TSC ventilation system air conditioning and filtration systems are scheduled to be restored to service by 1400 on Tuesday January 12, 2010.
"The licensee has notified the NRC Senior Resident Inspector.
"This notification is being made in accordance with 10 CFR 50.72 (b)(3)(xiii) due to unavailability of an emergency response facility."
* * * UPDATE FROM BEN HUFFMAN TO HOWIE CROUCH @ 1420 EST ON 01/12/10 * * *
"The TSC ventilation system and charcoal filter were returned to functional status at 1418 EST on Tuesday, January 12, 2010.
"This follow up notification is being made to provide closure of the initial notification under 10 CFR 50.72 (b)(3)(xiii)."
The licensee has notified the NRC Resident Inspector. Notified R3DO (Lipa).
"The Cook Nuclear Plant (CNP) Technical Support Center (TSC) ventilation system air conditioning and filtration systems are scheduled to be removed from service for scheduled preventive maintenance at 0400 on January 12, 2010.
"Under certain accident conditions, the TSC may become unavailable due to the inability of the filtration system to maintain a habitable atmosphere. Compensatory measures exist to relocate TSC personnel to the unaffected unit's control room if necessary based upon results of procedurally required monitoring of TSC radiological conditions.
"The TSC ventilation system air conditioning and filtration systems are scheduled to be restored to service by 1400 on Tuesday January 12, 2010.
"The licensee has notified the NRC Senior Resident Inspector.
"This notification is being made in accordance with 10 CFR 50.72 (b)(3)(xiii) due to unavailability of an emergency response facility."
* * * UPDATE FROM BEN HUFFMAN TO HOWIE CROUCH @ 1420 EST ON 01/12/10 * * *
"The TSC ventilation system and charcoal filter were returned to functional status at 1418 EST on Tuesday, January 12, 2010.
"This follow up notification is being made to provide closure of the initial notification under 10 CFR 50.72 (b)(3)(xiii)."
The licensee has notified the NRC Resident Inspector. Notified R3DO (Lipa).
Hospital
Event Number: 45973
Rep Org: BRISTOL HOSPITAL
Licensee: BRISTOL HOSPITAL
Region: 1
City: BRISTOL State: CT
County:
License #: 06-02057-01
Agreement: N
Docket:
NRC Notified By: BERNARD PERCARPIO
HQ OPS Officer: BILL HUFFMAN
Licensee: BRISTOL HOSPITAL
Region: 1
City: BRISTOL State: CT
County:
License #: 06-02057-01
Agreement: N
Docket:
NRC Notified By: BERNARD PERCARPIO
HQ OPS Officer: BILL HUFFMAN
Notification Date: 06/02/2010
Notification Time: 15:46 [ET]
Event Date: 01/12/2010
Event Time: 00:00 [EDT]
Last Update Date: 06/02/2010
Notification Time: 15:46 [ET]
Event Date: 01/12/2010
Event Time: 00:00 [EDT]
Last Update Date: 06/02/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
35.3045(a)(1) - DOSE <> PRESCRIBED DOSAGE
10 CFR Section:
35.3045(a)(1) - DOSE <> PRESCRIBED DOSAGE
Person (Organization):
GLENN DENTEL (R1DO)
LARRY CAMPER (FSME)
GLENN DENTEL (R1DO)
LARRY CAMPER (FSME)
DOSE LESS THAN PRESCRIBED DOSE IN TWO SEPARATE BRACHYTHERAPY TREATEMENTS
"[Patient #1], with localized prostate cancer, had an ultrasound directed transperineal implant with 60 I-125 seeds on 1/12/2010. The total activity implanted was 20.4 mCi. Final dosimetry was based on a CT scan performed on 2/16/2010. This revealed a D90 of 8400 cGy which was lower than the prescribed dose of 14500 cGy. The patient and referring physician were notified and the patient then received supplemental external beam irradiation of the prostate with 3000 cGy delivered between 3/11/2010 and 4/08/2010. The patient is currently doing well with minimal treatment related symptoms.
"[Patient #2], with localized prostate cancer, had an ultrasound directed transperineal implant with 66 Cs-131 seeds on 1/12/2010. The total activity implanted was 186 mCi. Final dosimetry was based on a CT scan performed on 2/16/2010. This revealed a D90 of 6500 cGy which was lower than the prescribed dose of 11000 cGy. All seeds were accounted for in the final review. However, careful review of the isodose lines revealed adequate coverage of the involved areas of the prostate. The patient and referring physician were notified and the prescribing physician indicated that additional treatment was not necessary.
"[Both] events occurred due to unexpected displacement of the seeds in an inferior (caudal) direction.
"[The licensee] continues to use preplanning for all prostate brachytherapy patients with careful direct supervision of needle and seed placement. Six (6) patients have been treated with brachytherapy at Bristol Hospital since January 2010 and the final dosimetry has been acceptable for all."
A Medical Event may indicate potential problems in a medical facility's use of radioactive materials. It does not necessarily result in harm to the patient.
"[Patient #1], with localized prostate cancer, had an ultrasound directed transperineal implant with 60 I-125 seeds on 1/12/2010. The total activity implanted was 20.4 mCi. Final dosimetry was based on a CT scan performed on 2/16/2010. This revealed a D90 of 8400 cGy which was lower than the prescribed dose of 14500 cGy. The patient and referring physician were notified and the patient then received supplemental external beam irradiation of the prostate with 3000 cGy delivered between 3/11/2010 and 4/08/2010. The patient is currently doing well with minimal treatment related symptoms.
"[Patient #2], with localized prostate cancer, had an ultrasound directed transperineal implant with 66 Cs-131 seeds on 1/12/2010. The total activity implanted was 186 mCi. Final dosimetry was based on a CT scan performed on 2/16/2010. This revealed a D90 of 6500 cGy which was lower than the prescribed dose of 11000 cGy. All seeds were accounted for in the final review. However, careful review of the isodose lines revealed adequate coverage of the involved areas of the prostate. The patient and referring physician were notified and the prescribing physician indicated that additional treatment was not necessary.
"[Both] events occurred due to unexpected displacement of the seeds in an inferior (caudal) direction.
"[The licensee] continues to use preplanning for all prostate brachytherapy patients with careful direct supervision of needle and seed placement. Six (6) patients have been treated with brachytherapy at Bristol Hospital since January 2010 and the final dosimetry has been acceptable for all."
A Medical Event may indicate potential problems in a medical facility's use of radioactive materials. It does not necessarily result in harm to the patient.