ML20058H872
| ML20058H872 | |
| Person / Time | |
|---|---|
| Site: | 07000398 |
| Issue date: | 12/07/1993 |
| From: | Pevey L NATIONAL INSTITUTE OF STANDARDS & TECHNOLOGY (FORMERL |
| To: | Soong S NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| TAC-L30550, NUDOCS 9312130254 | |
| Download: ML20058H872 (7) | |
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/ y UNITED CTATES DEPARTMENT OF COMMERCE National Institute of Stander da and Technology Gaitrersburg. Marylet 20899
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DEC 071993 Sean Soong Docket 70-398 Licensing Branch 2 License SNM-362 -
Licensing Branch TAC No. L30550 Division of Fuel Cycle Safety and Safeguards, NMSS United States Nuclear Regulatory Commission Washington, D.C. 20555-0001
Dear Dr. Soong:
In response to your letter of Nov.10 requesting additional information on our decommissioning funding plan, we are providing responses to the 4 modifications given in the query.
If you have questions regarding this information, please contact Mr. T. Hobbs of the Health Physics Group at (301) 975-5800.
Sincerely, h
W L. E. Pevey, ef Occupational Health and Safety Division (Materials Licensing Manager) enclosures p'if 080047 9312130254 931207 PDR ADOCK 07000398
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RESPONSES TO REQUESTED MODIFICATIONS TO NIST DECOMMISSIONING FUNDING PLAN, SUBMITTED 12/93 i
Modification No. (1) Submit additional detail to support the cost estimates (Regulatory Guide 3.66, Appendix F)
Response No. (1)
De cost estimates have been reformatted as outlined in the cited reference.
The details are shown in the attached tables.
Modification No. (2) Account for the costs of conducting a final radiation survey (Regulatory Guide j
3.66, pages 1-9 and F-5) i Response No. (2)
The final survey costs are shown in the tables attached. The final radiation survey cost estimates were included in the original submission. The guidelines used for the original cost estimate preparation specifically include the cost of the final radiation survey and associated tasks (NUREG/CR-1754, i
Technology, safety and costs ofdecommissioning reference non-fuel-cycle l
nuclearfacilities, 54.4.4, The termination surwy).
Modification No. (3) Substantiate the extent of contamination at the facility Response No. (3)
Research and development functions involving radioactive materials at the facility range from tracer experiments utilizing 'H, "C, '2P, etc. to l
sophisticated chemistry with transuranic nuclides. Normally projects involve i
batch processes to pursue specific technical als. The conclusion of a project requires that all residues of preceding operations be removed to preclude interference with further research and development that usually has national and international reference standards implications. Radiation safety l
monitoring and surveys to assure continuing integrity of good work practices over nearly 30 years helped establish a knowledge base concerning contamination levels and other work practice consequences that might impact decommissioning efforts.
Additional knowledge was gained through a decommissioning effort that was successfully concluded. A laboratory previously used for transuranic chemistry and a storage area for plutonium and uranium standard reference materials were decommissioned and final survey results confirmed by an NRC contractor survey. The NRC approved release of these facilities for public use. The knowledge gained from this effort was utilized to generate the estimates of contamination levels anticipated from other laboratories that will I
face ultimate decommissioning.
l The estimates for the accelerator facilities were generated through I
complete surveys of residual radiation levels following termination of operations of the linear electron accelerator, existing knowledge of activation products in concrete from high energy electron bombardment, and preliminary tests of contamination depths combined with calculations of activation depths and areas and irradiation levels through the years of operation. The tritium activity in the Low Scatter Room of the positive ion accelerator was estimated
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l RESPONSES TO REQUESTED MODIFICATIONS TO NIST DECOMMISSIONING FUNDING PLAN, SUBMITTED 12/93, page 2 from contamination surveys of benches and other surfaces in the area and was, if anything, extremely conservatively extrapolated to a 10% areal contamination factor.
The Reactor laboratories have been used continuously for over 25 years to date with a miscellany of irradiation processes products. A continuing radiation surveillance program for contamination and other safety impacts indicate that, again, a conservative estimate of residual radioactivity j
i was chosen for the cost estimating.
Modification No. (4) Clarify that no credit was taken for salvage value (Regulatory Guide 3.66, l
page 1-10)
Response No. (4)
As discussed in Part 3, Packacine. Shionine. and Disposal of Radioactive Wgstes, in the attached tables, there may be some recovery of materials but l
l these savings are not explicitly reflected in the cost estimates presented.
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Therefore, no credit has been claimed for salvage value, t
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1.
Pfannine and Prereration Table 1 Work Days Total Cost Ing Supervisor Foreman Technician Craftsmen Laborers Clerical M
(5k) 1.
Preparation of Documentation for Regulatory Agencies 50 137 10 25 222 62.3 2.
submittal of Deconunissioning Plan to NRC 12 50 20 82 21.3 3.
Development of Work Plans 50 100 50 25 225 55.8 4.
Procuring of Special Equipment 12 25 20 57 13.4 5.
StaffTraining 7
30 20 30 30 10 127 28.1 6.
Characterization of Radiological Condition of the Facility 375 375 720 20 1490 329.1 7
Total 506 717 800 30 30 120 2203 509.9 8.
50% Contingency and Ancillary increase 253 358.5 400 15 15 60 1101.5 254.9 9.
Grand Total 759 1075.5 1200 45 45 180 3304.5 764.8 Tabte 2 Unit Cost for Workers Positien Basic Safaries (5/v)
Overhead Rate (%)
Worker Cost / Year Worker Cost / Day Supervisor (IIP) 65000.
19 77350 309 Foreman 52000 52 79040 316 Cransman 42000 52 63840 255 Technician (11P) 27000 19 32130 129 Laborer 29000 52 44080 176 Clerical 19000 19 22610 90 attachment page I of 4
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4 2.
Decontamination end'or Dismantline of Radioactive Fscility Components Dimensions Glove Boxes 15 7.5 (m')
Fume flood 140 396.9 (m')
Lab Benches 140 1030 (m)
Sink and Drain 122 1220 (m)
Amours of Floor Space 122 2476 (m')
Ventilation Duet Work 142 1420 (m) 2 Amours of Wall space 366 7356 (m )
Table 3 Work Days Total Cost I_ng Suoervisar Foreman Technicians Crabmen Laborers Maj (Ski e
1.
Decon/ Dismantle blajor Comronents and/or Processing and 8
15 30 10 40 103 20.7 Storage Tanks 2.
Decon/ Dismantle Laboratories. Fume licods, Glove Boxes.
150 175 550 125 550 1550 301.3 Benches. etc.
3.
Decon/DismantleWeste Areas 10 15 30 5
30 90 18.3 4.
Decon/ Dismantle Service Facilities 5
5 15 4
14 43 8.5 5.
hionitor for compliance, Reclean, and rerenitor, if necessary 20 20 70 50 160 30.3 6.
Total 193 230 695 144 684 1946 379.1 7.
50% Ancillary incresw 96.5 115 347.5 72 342 973 139.5 8.
25 % Contingency Increase 72.4 86.3 260.6 54 256.5 729.8 142.2 9.
Grand Total 361.9 431.3 1303.1 270 1282.5 3648.8 710.8 stischment page 2 of 4 m
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Eauirment'5urrly Ouentity Cnst f$k)
Expendables estimated 189.1 Recoverables estimated 93.1 25% ContingencyIncrease 94.1 Total 376.2 3.
Packaring. Shirring. and Disposal of Rsdioactive Westes With the closure of the national radioactive waste disposal sites and the uncertainties in the timing of the availability of the regional compact states' disposal site, or in the costs that will be involved in disposal there, no precise breakouts of radioactive waste disposal costs can be made. Estimates of the radioactive waste volume generated in the decommissioning of the facility indicate that the equivalent of 275 drums, each 0.208 nf (55 gallons), for a total volume of 57.2 m' (15,000 gallons or 2,000 ft'), witi be generated. Some materials will be transported to offsite facilities for super compaction while others will not be suitable for such treatment. A portion of the generate
- waste may be recoverable by processors, leaving disposable residues, and some of the generated wastes will disporA of directly with no recovery processes involved.
With the estimate of 275 d ams oflow level radioactive waste generated, the following estimates of handling, processing, and disposal costs are provided:
Tables 5. 6. 7 Total Cost fik)
V'este Packaging, Drum Costs, Local Management
' 252.8 Volume Reduction, Packaging and Shipping, Re+rieval 816.0 and Locs! ILfanagement of Compacted RAW Fina! Disposal Following Accessibility of Compact 275.0 States' Disposal Facility Total 1343.8 attachment page 3 of 4
4.
Restorstion of Contaminated Areas on Facility Ground l
Table 8 Work Days Teal Cost M
Surervisor Fereman Technicians C9Rsmen Laborers Ist,a!!!
dk) a Remove Concrete and Resurface 24 25 90 7
140 2R6 53.4 Total 24 25 90 7
140 286 53.4 50% Ancittary increase 12 12.5 45 3.5 70 143 26.7 25% contingencylacrease 9
9.4 33.8 2.6 52.5 107.3 20.0 Grand Total 45 46.9 168.8 13.1 262.5 536.3 100.0
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5.
Final Radiation Surver Table 9 Work Days Taal Cost Insh Surervisor Foreman Technicians Cransm_eg laborers M
dk)
Resurvey & Confirm 75 15 125 5
20 240 48.8 Total 75 15 125 5
20 240 48.8 50% Ancillary increase 37.5 7.5 62.5 2.5 10 120 24.4 25% Contingency lacrease 28.1 5.6 46.9 1.9 7.5 90 18.3 Grand Total 140.6 28.1 234.4 9.4 37.5 450 91.6 6.
Site Stabilization. Lenz-Term surveillance (if applicable)
NOT APPLICABLE attachment page 4 of 4
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