ML17345B093
| ML17345B093 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 05/04/1983 |
| From: | Mcdonald D Office of Nuclear Reactor Regulation |
| To: | Robert E. Uhrig FLORIDA POWER & LIGHT CO. |
| References | |
| NUDOCS 8305180541 | |
| Download: ML17345B093 (12) | |
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-I NAY 04 Ige3 Docket Nos. 50-250 and '50-251 Or. Robert E. Uhrig, Vice President Advanced Systems and Technology florida Power and Light Company Post Office Box 14000 Juno Beach, Florida 33408
Dear Dr. Uhrig:
DISTRIBUTION Docket~
NRC POR L PDR NSIC ORBIIl Rdg DEisenhut OELD JMTaylor ELJordan ACRS-10 CParrish OMcOonald RSerbu Gray
SUBJECT:
SITE VISIT AND OVERYIEH 'OF TURKEY'PgBfTALARA/RADIATIONPROTiECTION PROGRAtl FOR STEAN GENERATOR REPLACEMENT On March 29 and 30, 1983, members of the Radiological Assessment
- Branch, members of the Division of Fuel Cycle and Material Safety and personnell from Pacific Northwest Laboratory '(PNL) visited the Turkey Point facility for an overview of the radiation p'rotection and ALARA aspects of your steam generator rep'f5cement effort.
The staff members would like to express their apprec(ation to the FPRL personnel who were extremely helpful and responsive during the,visit.
The enclosed Trip Report.provides details.and observations of the staff during the site visit.
The detailed information provided to our contreat'.for,,
PNL, will be of assistance in performing a generic study on the radiological assessment of steam generator repair and replacement.
Your cooperation and assistance is greatly appreciated.,
Sincerely,
Enclosure:
Trip Report' cc w/enclosure>
See next page 8305%80541 830504 PDR ADOCK 05000250 P
PDR Daniel G. NcDonald, Project t<anager Operating Reactors Branch 41 Division of Licensing OFFICEI SURNAME/
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Robert E. Uhrig Florida Power and Light Company cc:
Harold F. Reis, Esquire Lowenstein, Newman,, Reis and Axelrad 1025 Connecticut
- Avenue, N.W.
'uite 1214 Washington, D.
C.
20036 Norman A., Coll, Esquire
- Steel, Hector and Davis 1400 Southeast First National Bank Building Miami, Florida 33131 Mr. Henry Yaeger, Plant Manager Turkey Point Plant Florida Power and Light Company P. 0.
Box 013100 Miami, Florida, 33101 Mr. Jack, Shreve Office of the Public Counsel Room 4, Holland Bui ldi'ng Tallahass'ee,
-Florida 32304 Administrator Department of Environmental Regulation Power Plant Siting Section State of Florida 2600 Blair Stone Road Tallahassee, Florida 32301 Resident Inspector Turkey Point Nuclear Generating Station U. S. Nuclear Regulatory Commission Post Office Box 1207 Homestead,. Florida 33030 James P. O'Reilly Regional Administrator - Region II U.
S. Nuclear Regulatory Commission 101 Marietta Street - Suite 3100 Atlanta, Georgia 30303
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TOPICAL
SUMMARY
TURKEY POINT TRI P March 29' 30, 1983
'PERSONNEL'NVOLVED NRC Richard E. Cunningham, Director, Divi.sion of Fuel Cycle and Material
- Safety, NMSS Frank J.
Congel, Chief, Radi'ological Assessment Branch,'SI/NRR Richard J.
- Serbu, Radiation Protection Section, 'RAB/DSI/NRR FPBL Joe Danek, Corporate Health Phys'ici st Turkey Point. -
Pat Hughes, Plant Health.Physicist Jim.,Bates, Plant ALARA, Supervisor
'AGENDA I
1.
Discussion of Turkey Point Steam Generator Replacements-Joe Danek discussed the operati'onal and radiological aspects of the S/G'eplacements,,
keying on preparation,
- doses, and specific ALARA measures.
He noted that while the. lessons learned from the efforts on the first unit were important, the biggest, gains in reduci'ng dose and smoothing the effort came from the use of experienced personnel,, particularly
'upervisors, on the second unit efforts.
Very significant. dose savings-20'5 to 30 or greater - are expected over dose expendi tures for equiva-lent work on the first'. effort, with accompanying: time: and.manpower savings.
FPSL is willing to share their lessons learned
& experience with other utili.ties.,
Of particular interest, personnel from CP8L
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have.visited Turkey Point in preparation for their planned
'S/G replace-ments in.1984.
FP8L feels their strong
'ALARA effort has: paid off in the efficiency of this operation.
Our PNL contractors al,so attended this briefing, and received additional detailed information which will be documented i'n the "Radiol'ogical Assessment of Steam Generator Repair and Replacement" NUREG, slated for publication in October.
2.
Tour of Training and Mockup Facilities Joe Danek and Jim Bates showed us the large and extensive facilities needed to train the many contractor personnel for the outages.
(Specific efforts were directed to minfmize the number'f people needed 'for the work effort).
Training for radiation, workers was part of a 20'hour training course which included'ecture and'erformance of practical factors (e.g.
donning/removing PC 's; entry 8 egress of control points; working with radioative equipment).
Specific training for steam gener-ator entry is conducted on a full scale mockup-.
The, channel heads removed from the new replacement S/G's were used to provide workers with actual experience in cutting and weldi,ng the channel heads and divider plates.
3.
Turkey Point Dose Control System Turkey Point employs a computer-based dose tracking system which allows real time update of worker and task dose.
A HP 1000 computer,
'connected with several remote terminals enables the control point personnel to input doses from self-reading pocket chamber readings, into a data base.
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Accumulated dose is updated, and'llowable remaining dose is automatical ly calculated and displayed.
The system effectively prevents individuals from exceeding local dose control levels, monitors dose extensions, and helps avert overexposures, since the updates are instantaneous once inputed, and all other control points will have the same information.
The information is also available to the ALARA Supervisor for task dose update.
Programs have been developed in-house specifically suited to Turkey Point's dose tracking needs.
Morker dose updates are routinely provided on printouts for workers and supervisors.
Men TLO 's are read out (in accordance with local procedures),
the doses.by TL'0 and pocket chamber are automatically compared and discrepancies flagged and investigated.
4.
Tour of-Aux Building and Containment Jim Bates escorted us through the auxilliary and containment, where the recovery phase of the steam generator work was in progress.
He pointed out.the principal work sites and radiological conditions-associated with the work zones.
Pork, areas frequently contained portable radi ation monitoring meters with readily visible LED dose rate displays.
These were mounted on stands in high dose areas to provide workers with con-tinual dose rate reminders..
The work areas were remarkably clean for the amount of work being done and numbers of personnel involved.
Area radio-logical postings were well kept, and survey maps clearly showed dose rates and contami nation levels for all accessable areas.
A general area decon of the containment had been performed to improve the radiological
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conditions and ease the impact on the work and workers (e.g.
from protec-tive clothing requirements, respiratory protection requirements).
Main containment entry was via the equipment hatch.
The smaller personnel hatch required passage through an area open to the weather (typical of many plants).
'Control point egress required whole body frisking and eventual exit through a highly sensitive liquid scintillation portal monitor.
We also were able to check out at first hand the computerized dose tracking system - our dose expended and dose remaining were imme-diately updated and available to other terminals.
5.
Miscellaneous We also received entry and exit whole body counts.
FPSL owns their own I
whole body counting systems and kept them manned by I/M technicians during the outage.
They reported a favorable cost-benefit in owning the equip-ment and being able to process large number of people quickly, minimizing waiting and back-ups.
Administrative systems. associated with radiation protection were fairly smooth and streamlined.
Large change areas were specially buil,t for the outage.
We also viewed the "masoleum" built for on site storage of the removed steam generators.
I also discussed our 8-2522 contract work with the PNL Project h1anager,,Mary Ann Parkhurst, and Glen Hoenes during this visit.
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