ML20036A025
| ML20036A025 | |
| Person / Time | |
|---|---|
| Site: | 07000398 |
| Issue date: | 04/19/1993 |
| From: | Kammer R NATIONAL INSTITUTE OF STANDARDS & TECHNOLOGY (FORMERL |
| To: | Tokar M NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| NUDOCS 9305070236 | |
| Download: ML20036A025 (16) | |
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UNITED CTATED DEPARTMENT OI: COMM2RCE fy National Institute of Stander da and Technology g.
co t< =nuro. varviano eoesa OFFICE OF THE DIRECTOR -
g April 19,1993 Michael Tokar, Section Leader Licensing Section 2 Docket Number 70-398 Licensing Branch License Number SNM-362 Division of Fuel Cycle Safety and Safeguards U.S. Nuclear Regulatory Commission Mail Stop 6H3 Washington, D.C. 20555
Dear Mr. Tokar:
Enclosed is the Statement of Intent, the Certification of Financial Assurance, and the NIST Decommissioning Funding Plan Development document for our license number SNM-362. This information supersedes all previous submittals on this subject.
Sincerely, g
Raymo id G. Kammer Acting Director Enclosures s
5 9305070236 930419 PDR ADOCK 07000398 C
F CERTIFICATION OF FINANCIAL ASSURANCE Principal:
U. S. DEPARTMENT OF COMMERCE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY GAITHERSBURG, MARYLAND USNRC License Number SNM-362 issued to:
U. S. Department of Commerce National Institute of Standards and Technology ATTN: Mr, L. E. Pevey, Chief Occupational Health and Safety Division (Materials Licensing Officer)
Gaithersburg, Maryland 20899 Issued to:
U. S. Nuclear Regulatory Commission Washington, D. C. 20555 This is to certify that the National Institute of Standards and Technology, an agency of the U. S.
Department of Commerce, is licensed to possess source, byproduct, and special nuclear materials in the amounts and forms shown on the attached sheet, and that fmancial assurance in the amount of
$3,386,706, as prescribed by 10 CFR 70, will be requested and obtained for the purpose of decommissioning.
(
. hM- $ 3
/
Raymond G. Kamber Date Acting Director l
l l
l STATEMENT OF INTENT USNRC License Number SNM-362 is for research and development at the National Institute of Standards and Technology in Gaithersburg, Maryland.
The purpose of this statement is to guarantee that funds in the amount of $3,386,706, or more, as needed, will be requested and obtained sufficiently in advance of decommissioning to prevent delay of required activities.
L i
i M
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H:-11-1a Raymond G. Kammer' Date Acting Director
NIST RADIOACTIVE MATERIALS LICENSE LIMITS NUCLIDE CHEMICAL / PHYSICAL FORM MAXIMUM AMOUNTTO POSSESS A(1).
Uranium enriched to less than 20 Any 30 grams of U-235 wt% in the U-235 im*re A(2).
Uranium enriched to less than 20 Storage only, awaiting disposition 21 grams of U-235 wt % in the U-235 isotope B(1).
Uranium enriched to greater than 20 Any 230 grams of U-235 wi% in the U-235 isotope B(2).
Uranium enriched to greater than 20 Storage or.ly, awaiting disposition 157 grsms of U-235 wt% in the U-235 isotope C.
Uranium-233 Any 6 grams of U-233 D(1).
liutonium Any 40 grams of plutonium D(2).
Plutonium Storege only, awaiting disposition 46 grams of plutonium E.
Plutonium Scaled sourses 800 grams of plutonium F.
Plutonium enriched to more than 80%
Any 5 grams of Pu-238 in the Pu-238 isotope G.
U-natural (source material)
Any 159 kilograms H.
Thorium (source material)
Any 69 kilograms 1.
Uranium depleted in the U-235 Any 46 kilograms
]
I isotope (source material) 3.
Co-60 Scaled sources 2,000 suries K.
Co-137 Scaled sources 2,000 curies L.
Po-210 Scaled sources 20 curies M.
Am-241 Scaled sources 40 curies N.
Cf-252 Scaled sources 10 curies O.
Sr 90 Scaled sources 3 curies P.
Co 60 Irradiators 56,000 curies Q.
Cs-137 Irradiators 7,000 curies R.
Any other bypruduct material Any not to exceed 4 curies for each nuclide of half-life less than 30 days and I curie for any other nuclide, and 4000 curies total, except as follows:
- a. H.3
'2,000. curies
- h. C-14
- 5. curies
- c. Co-60
- 5. curies
- d. Kr-85 35 curies
- e. Mo-99
- 20. curies
- f. Tc-99m
- 20. curies
- g. Xe-133
- 20. curies
- h. Cs-137
- 20. curies l_
- 1. Au-198 300. curies J. Am-241 0.025 curies
- k. Am-243 0.025 curies
- 1. Cm-242 0.025 curies
- m. Cm-244 0.025 curies
- n. Cf-252 0.025 curies S.
Any byproduct material Neutron irradiated samples or containers 1,100 curies T.
Irradiated Fuel Four pellets (storage only, eweiting 0.25 grams of U-235 disposition)
NATIONAL INST!TLrrE OF STANDARD 5 AND TECHNotA0Y GAITHilSBUltO. MARYLAND Doownber, tW2
NIST DECOMMISSIONING FUNDING PLAN DEVELOPMENT Health Physics, April,1993 Introduction As required by the USNRC for license number SNM-362, a decommissioning funding plan has been developed for the eventual termination of radiological work covered by that license. Decommissioning a facility rJsures that the facilities and components involved in the terminated work are either sufficiently free of radiological contamination that they may be
)
turned over to the general public or packaged and delivered to radioactive waste disposal authorities.
In developing this plan, the primary reference was NUREG/CR-1754, Technology, safety ami costs ofdecommissioning reference non-jitel-cycle nuclearfacilities, dated February,1981, and its more recent addendum, NUREG/CR-1754-ADD-1, Compendium of current information, dated October,1988. Only the work associated with license SNM-362 was reviewed. None of the facilities covered by the NIST reactor license was considered.
For this plan development, the NIST materials license operations were divided into three sections, one covering the laboratory facilities used for radiochemistry, sealed sources, etc., one covering the accelerator facilities, especially the terminated Linear Electron Accelerator project's Wing A of Bldg. 245, and one covering the portions of Bldg. 235 that are not included in the reactor license's indemnified areas. The projected costs for each of the sections were generated separately, using techniques that are explained in the appropriate section of this report, following this introductory section.
Labor costs were estimated using current civil service general schedule pay tables and the current overhead charge of 19% for personnel benefits now used for NIST Health Physics staff sa! aries, and Plant Division labor charges applied to work orders. The latter use a 52% charge-out overhead cost.
1 Comparison of current labor costs to those used in the NUREG for 1988 indicate that an average increase of 36% has occurred from 1988 to 1993. This increase, a factor of 1.36, was assumed to hold for all costs from 1988 to 1993. Therefore, the per imit costs cited in the reference information have been increased by a factor of 1.36.
Table 1 - LABOR COSTS IN 1993 $
I basic cost ($/y) c' head (W) cost ($/y)
- cost (s/d)
Supervisor (GS-14) 65000 19 77350 309 Foreman
$2000 52 79040 316 Craftsman 42000 52
'63840 255 laborer 29000 52 44080 176 HP Technician (GS-8) 27000 19 32130 129 l
Secretary (GS-4) 19000 19 22610 90 imwmi.
Cost estimation The NUREG reference uses a calculational scheme that subdivides the facility into components and further subdivides each component into unit portions. Calculations are performed with unitary elements and cost factors for each unitary element to derive a complete cost for decommissioning each component type.
Table 2 shows the components used for calculation, the dimensional unit for each component, and the number of units of each component in the standard size and configuration.
Table 2 - COMPONENT UNIT DETAILS COMPONENT units of DIM _ PAR DIM _ PAR (atandard unit size) hood decorsamination and RAW cubic meters 2.835 ghwe box decontamination and RAW cubic meters 0.5 bench decontamination and RAW meters 8.7 sink decontamination and RAW meters 10 vent decontamination and RAW eneters 10 wall decontamination' square meters 59.16 floor decontamination' square meters 19.72 1:
No RAW is considered for floor or wall /cciling because a number of barrels of RAW are estimated for these, based on the materials estimated as required for decontamination. Little of the normal floor or wall / ceiling surfaces should be contaminated so that removalis required.
The tabulated unit cost factors from the tables in the NUREG, adjusted with the factor of 1.36, were used to generate costs for decommissioning the various components to be treated in a module. In the NUREG, values for UNIT Cn, in $k, were estimated for a variety of laboratory types, depending on the radionuclide used in a laboratory. As radionuclide work at NIST involves any radionuclide, almost any of the radionuclides might be encountered in the decommissioning project. Therefore, an average value was determined from all the various values shown in the NUREG for each of the unit component costs. The various unit cost factors used in this calculation are shown in Table 3, below.
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t Table 3 - UNIT COSTING FACTORS (all values in $k)
COMPONENr UNTr_C.
UNTr_C.,
UNIT _Cv.
- UNTr_Cw, hood decontamination 0.90 0.87 0.08 0.33 hood RAW l.35 0.69 0.08 0.05 glove box decontamination 4.96 6.09 0.07 0.29 glove box RAW 6.53 4.91 0.07 0.18 bench decontamination 0.12 0.19 0.08 0.37 bench RAW 0.35 0.18 0.08 0.04 stink decontamination 0.07 0.04 0.08 0.20 mink RAW 0.12 0.07 0.08 0.04 vent decontamination 0.08 0.04 0.11 0.14 7
vent RAW 0.11 0.04 0.11 0.03 well decontamination 0.08 0.05 0.08 0.45 floor decontamination 0.04 0.04 0.08 0.45 in Table 3, UNIT _Cxx is the unit cost factor for each cost element, as used in this plan, with XX as:
MP labor cost element, ES = equipment and supplies cost element, WP = waste packaging cost element, and VR = waste volmne reduction cost element.
DIXVPLAN.RPT Pup 3 9
Laboratory Section Initial estimates and assumptions Certain assumptions and decisions must be made prior to starting the decommissioning project. These influencing factors can be modified as additional information becomes available.
o There are 100 standard laboratory modules, each 5.8 meters long by 3.4 meters wide by 3.4 meters high.
o Each laboratory module has I hood of 2.835 m' volume, I sink with a 10 m long drain pipe, and a 10 meter length of vent / duct piping, o
Each laboratory has 1% wall lengths of bench space.
O There are 10 glove boxes, each with 0.5 m' volume.
o Initial radiation surveys indicate that:
Five percent of a laboratory's floor area and 5% of the wall / ceiling area will need to be decontaminated.
Ten per cent of the bench length will need decontamination.
Ten per cent of the hoods will need decontamination.
Half of the glove boxes will need decontamination.
Ten per cent of the length of the vent / duct will need decontamination.
o Follow up radiation surveys, upon completion of decontamination efforts, indicate that each laboratory will generate 1 barrel (55-gallon or 0.21 m') of low level radioactive waste. The scrap contributions from components to be disposed of, estimated to be I hood,1 glove box, 8.7 m of bench length, and 100 m of vent / duct length, are included in this.
o The total dimensions of the laboratories considered at NIST were about 20 times the dimensions of the NUREG's reference institutional user laboratory. That factor of 20 was applied to determine the labor costs for the preliminary deve%pment work.
Actual decommissioning labor calculations use the actual dimensions of the components of the laboratories, so application of that factor was unnecessary as an extra element.
O The status of radioactive waste (RAW) disposal options is currently uncertain. The customarily used disposal site at Barnwell, SC, is in the process of closing to out-of-r state customers such as NIST. It is assumed for the purposes of this plan that the Appalachian states group, i.e., Maryland, Pennsylvania, Delaware, and New Jersey, will complete the task of preparing to accept low-level radioactive wastes (LLRW) by the time that decommissioning is necessary for NIST. The cost of a 208-1 (55-gallon) drum of LLRW is estimated at $1,000. This is assumed to include the cost for an agent to accept the waste at the NIST site and transport the waste to the disposal site.
nueram e.
+-
Preliminary evaluation efforts costs Prior to initiation of the labor on the project, certain tasks are required to minimize errors, reduce wasted effort, and assure adequate cleanliness of an area and its residual components for general public use. Table 4 shows these tasks and the work estimates required to accomplish those tasks, with a cost assigned by time spent by each involved worker type.
Table 4 - PRELIMINARY WORK EFFORT FOR LABORATORIES (work days amt 1993$)
SUPERVISOR FOREMAN CRAITSMAN HP TECH LABORER SECTY Prepare documents 25 75 0
0 0
25 Perform rad. survey 100 100 0
200 0
0 Deveky work plan 25 50 0
25 0
25 s per day 309 316 255 129 152 90 Total cost. s 46350 71100 0
29025 0
4500 A total cost for the initial work assessment, including the initial radiological surveys to classify the elements of the laboratories as " clean" or as candidates for decontamination or disposal is the sum of the various portions of the work, $150,975. Rest periods, preparation time, materials movements, etc. will increase the time required to do the work, so an ancillary time fraction of 50% is added to this. The total for this preliminary work is, thus,-
estimated to be $226,462. The segregation of elements into those to be cleaned of residual i
~
contamination or those to be dismantled and prepared for radioactive waste disposal will be included in subsequent projects, described below.
j i
Work estimates Using the product of DIM _ PAR and UNIT _Cxx for each component, a cost for decommissioning each component can be calculated. Table 5 shows these data, with Cxx indicating the cost in $k. The DIM _ PAR column indicates the total units to be treated and, in parentheses, the per cent of the total units in the laboratory complex.
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Table 5 - COMPONENT COSTS FOR LABORATORIES (C values in $k)
COMPONINT DIM _ PAR C,
C.,
Cv, Cwp Total sk hond decontamination 28.35 (10%)
25.45 24.68 2.27 9.25 61.64 hood RAW 2.835 (1 %)
3.82 1.97 0.23 0.15 6.17 glove box decontamination 2.5 (50%)
12.41 15.23 0.18 0.71 28,53 glove box RAW 0.5 (10%)
3.26 2.45 0.03 0.09 5.84 bench decontamination 87 (10 %)
10.65 16.56 6.96 31.95 66.12 bench RAW 8.7 (1 %)
3.08 1.54 0.71 0.35 5.68 mink decontamination 100 (10 %)
6.80 4.08 8.00 20.40 39.28 sink RAW 10 (1%)
1.22 0.68 0.82 0.41 3.13 vent decontamination 100 (10%)
e.16 4.08 11.00 13.60 36.84 vent RAW 100 (10%)
10.88 4.08 10.s8 2.72 28.56 wall decontamination 295.8 (5 % )
24.14 16.09 23.66 133.!!
197.00 floor decontamination 98.6 (5 %)
4.02 4.02 7.89 44.25 60.19 Subtotal 113.89 95.47 72.63 257.00 538.98 50% ancillary time increase 56.94 56.94 (prep.. setup, rest periods, etc.)
25 % contingency increase 42.71 23.87 18.16 64.25 148.98 TOTAL 213.54 119.33 90.78 321.25 744.91 The total dollar sum of the cost of decontaminating and preparing for radioactive waste disposal is $744,910. This includes the 50% increase in ancillary time for the labor cost figures and an overall 25% increase as a contingency fund. The 100 barrels of radioactive waste that are generated will cost $100,000 in the final disposal. effort. The initial preparation and planning effort costs are $226,462. Thus, the total cost for decommissioning the laboratory portion of the NIST materials licensed activities, i.e., the sum of these three parts, will be $1,071,372.
Accelerator Section Initial estimates and assumotions Certain assumptions about this portion of the materials licensed facilities are necessarj
.to project decommissioning costs. Among the assumptions and decisions are the following:
o The involvement of licensed materials in accelerator operations force the facilities to be treated as if they were licensed by authorities, regardless of their unlicensed status, per se. Also, it is quite likely that other regulatory impacts and public perceptions of.
the facilities will make it necessary to decommission them in a manner like those facilities that are licensed.
Portions of certain beam intensive areas in the Wing A Linac complex will require o
removal of concrete to remove activation products. It is estimated that an average wrona.m r s I
depth of 0.1 m (4") will reduce radioactivity levels to acceptable. The cost of concrete removal, from a substantial wall, with final smooth finish restoration, is estimated to be $215 per square meter ($20 per square foot) of wall surface. Among the areas that will require this treatment are:
the Linac tunnel, A010,45.8 meters long by 0.9 meters wide by 0.9 meters e
high,10% will be removed, e
Measurement Room No.1, A018, a cube 12 meters on a side, 5% will be
- removed, the Magnet Room, A007, estimated to be the equivalent of a Measurement e
Room,10% will be removed, the entire Neutron Time of Flight Facility, NTOF and Blockhouse, G104 and
- and, e
G105, considered, with the shaft from the Magnet Room to the Blockhouse, to be the equivalent of a Measurement Room,10% will be removed.
The radiochemistry facility in Service Area No. 2, A006, is considered the equivalent o
of a standard radiochemistry laboratory, as treated in Part 1 of this plan. Associated with the hood is a pneumatic system for sample movement that will approximate another hood for the laboratory.
o The low Scatter Room of the positive ion Van de Graaff, B23, is about 9 meters squared by 18 meters high, with a grating floor between the two levels and equipment on both levels. It will be cons:dered as having 10% of its area contaminated with tritium. This will be treated as ifit were wall contamination for cost estiinating
- i purposes.
O All the other accelerator and radiation use areas will be found with no contamination nor activation requiring action beyond the initial surveys.
Eteliminary evaluation efforts costs Just as in the standard laboratory portion of this plan, prior to initiation of the labor on the project, certain tasks are required to minimize errors, reduce wasted effort, and assure adequate cleanliness of an area and its residual components for general public use. Table 6 shows these tasks and the work estimates required to accomplish those tasks, with a cost assigned by time spent by each involved worker type. Given that a substantial learning curve will have been developed through implementing the work in Part 1, it is estimated that 25%
of that effort will be required for the same result in Part 2, here, except for the radiological survey portion of the work. It is estimated that an equivalent amount of work for monitoring will be required here as for the laboratory facilities.
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Table 6 - PRELIMINARY WORK EFFORT FOR THE ACCELERATOR (work days and 1993$)
SUPERVISOR FOREMAN CRAFTSMAN HP TECH LABORfJt SECTY
.l Prepare documenta 63 18.75 0
0 0
63 Perform rad survey 100 100 0
200 0
0
'5 Develop work plan 63 12.5 0
63 0
6.3
$ per day 309 316 255 129 152 90 Total cost. $
34793 41475 0
26613 0
1125
-)
Thus, a total cost for the initial work assessment, including the initial radiological surveys to classify the elements of the areas as " clean" or as candidates for decontamination or disposal is $104,006. A 50% ancillary time addition for preparation, rest periods, etc.
brings the total to $156,009.
1 Work estimates Concrete removal will require Health Physics attendance and supervisory functions, J
so the $215 per square meter cost is estimated to increase to twice that figure, i.e., $430 per j
2 square meter. From the areas involved,232.5 m of wall surface will need removal and renovation; the total cost of this will be $99,975. The total volume of concrete removed will be 23.25 m', yielding a total of 112 barrels of RAW, costing $112,000. It is estimated that about 25% of that number of barrels of waste will be required to contain the materials used in the surface removal, including workers' Anti-C ' clothing, wipers, tools, etc. That-calculates to 28 barrels, for a cost of $28,000. Thus, the total cost of concrete removal is -
t estimated to be $239,975.
The single laboratory, with one hood, one sink / drain, and 10 m of vent / duct, but with a
no glove box nor bench, is estimated to be the size of a standard laboratory.. module and costs.
t can be calculated to cost as shown in Table 7.
!q TABLE 7 - COMPONENT COSTS FOR ACCELERATOR LAB (C values in $k)
COMPONENT DIM _ PAR C,
C, Cv, -
Cw,,
Total hood decontamination 2.835 (100%)
2.54 2.47 '
O.23 0.93 6.17 hood RAW 2 835 (100 5) 3.82 1.97 0.23 0.15 6.17 sink decontamination 10 (l00 5) 0.68 0.41 0.80 2.04 3.93 duct RAW 10 (100%)
1.09 0.41 1.09 0.27 2.86 j
wall decontamination 2.96 (5 %) -
0.24 0.16 0.24 1.33 1.97 i
floor decontamination 0.99 (5 %)
0.04 0.04 0.08 0.44 0.60
-. I Total $k 8.41 5.46 2.67 5.16
- 21.70 '
- 50% ancillary time increase 4.21 4.21 (prep., setup. rest petiods etc.
'}
25% contingencyincrease -
3.15 137 0.67 J 1.29 6.48
.[
TOTAL <
-15.77 6.83
- 334:
6.45 _
3239 The component cost' for decommissioning the laboratory in the accelerator complex,-
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including the ancillary time for labor and the contingency factor, will be $32,390.
For the Iow Scatter Room, the decontamination of 10% of the total wall area will involve 8 areas, i.e.,4 walls on each of 2 levels, and 2 floor areas on each of the 2 levels, each of the areas being 9 meters square, so the total wall area to be treated will be 64.3 square meters and the total floor area to be treated will be 16.2 square meters. Using the unit costing factors from Table 3 for wall and floor decontamination, the total cost to decommission the Low Scatter Room will be $42.8k for the walls and $9.9k for the floors.
Thus, the total cost will be $52,700.
The total cost for decommissioning the accelerator complex is, therefore, estimated to be $481,074.
Reactor Section initial estimates and assumptions There are two independent areas at the Reactor complex that do not fall within the indemnified area described in the Reactor license. These are that area within Bldg. 235 but outside the Confinement Building, and the Radioactive Waste Annex. For the purposes of this plan, these two areas will be treated separately, after the preliminary work effort costs are estimated.
The initial labor costs for the Annex will approximate those for the Accelerator portion described in the section immediately preceding this section. The labor costs for the laboratory portion of the Reactor will approximate the costs for the laboratory section described in the first section of this plan, because of the significant potential for tritium contamination of any surface within the building. Thus, the total labor costs for the preliminary studies and surveys are estimated to be $156,000 + $226,500 = $382,500.
Work estimates The Radioactive Waste Annex is an appendage at the rear of Bldg. 235. It is approximately 7.5 meters wide by 12 meters long by 4.5 meters high. It is estimated that 75% of the floor and 50% of the walls will require decontaminating. Various pieces of equipment, e.g., compactor, barrel handling tools, bins, etc., are within the enclosed volume. It is estimated that the equipment will be the equivalent of 5 hoods, with 50% to be decontaminated and 25% to be treated as RAW. Table 8 shows the calculated values for the various elements in the costing process.
6 DIXVPLAN.RIT Pass 9
i Table 8 - COMPONENT COSTS FOR RADIOACTIVE WASTE ANNEX (C values in $k)
COMPONENT DIM _ PAR C,
C.,
C.
Cw, Total $k hood decontamination 7.09 (50 %)
6.38 6.17 0.57 2.34 15.46 hood RAW 3.54 (25 %)
4.78 2.45 0.28 0.18 7.69 i
i wall decontamination 99 (50 %)
7.92 4.95 7.92 44.55 65.34 I
floor decontamination 67.5 (75 5 )
2.70 2.70 5.40 30.38 41.18 Total $k 21.78 16.27 14.17 77.45 129.67 50% ancillary time increase 10.89 10.89 (prep.. setup, rest periods, etc.)
25% contingencyincrease 8.17 4.07 3.54 19.36 35.14 TOTAL 40.84 20.34 17.71 96.81 175.70 Tic cost for the Annex work is, then, $175,700. If an estimated 5 barrels of RAW are generated, a disposal cost of $5,000 is added to this, for a grand total for the area of
$180,700.
The interior portion of Bldg. 235 that is not covered by the Reacior operating license can be described as follows:
o There are the equivalent of 20 standard laboratory modules, considering the warm, semi-warm, and hot labs.
O Each laboratory has 2 hoods; half will be decontaminated and half will be disposed of as RAW.
o There are 5 glove boxes in the complex; all will be disposed of as RAW.
o There is I sink / drain in each laboratory; 8 will be decontaminated and 2 will be RAW.
There is a 10 meter length of vent / ducting for each laboratory; 5 will be o
decontaminated and 15 will be RAW.
o Workbenches cover 3.75 meters of each 5.8 meter wall length; 75%.will be decontaminated ar.d 25% will be RAW.
i o
One barrel of RAW will be generated for each laboratory.
-o Ten barrels of RAW will be generated in decontaminating the non-laboratory part of the building.
The decommissioning component costs, based on these assumptions, will be as shown in Table 9.
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f Table 9 - COMPONENT COSTS FOR REACTOR LABORATORIES (C values in $k)
COMPONENT DIM _ PAR C,
C.,
Cv, C,,,
Total hood decontamination 56.7 (50 %)
50.89 4935 4.54 18.51 123.29 hood RAW 56.7 (50 %)
7634 3933 4.63 3.08 12338 glove box decontamination 0
0.00 0.00 0.00 0.00 0.00 glove box RAW 2.5 (100 %)
16.32 12.27 0.17 0.44 29.21 workbench decontamination 174 (75 % )
2130 33.13 13.92 63.89 132.24 workbench RAW 58 (25 %)
20.51 10.25 4.73 237 37.86 sink decontamination 80 (80 %)
5.44 3.26 6.40 1632 31.42 sink RAW 20 (20 %)
2.45 1.36 1.63 0.82 6.26 duct decontamination 100 (25 %)
8.16 4.08 11.00 13.60 36.84 duct RAW 300 05%)
32.64 12.24 32.64 8.16 85.68 9.65 6.44 9.46 53.24 78.79 wall decontamination 118 3 (10 %)
floor decontamination 295.8 05%)
12.07 12.07 23.66 132.76 180.56 Total $k 255.77 183,78 112.79 313.18 865.52 50% ancillary time increase 127.89 127.89 (prep., setup. rest periods. etc.)
5 25% contingencyincrease 95.91 45.95 28.20 78.29 248.35 TOTAL 479.57 229.73 140.98 391.47 -
1241.76 The costs for component work on the interior portion of Bldg. 235 is estimated to be r
$1,241,760. Radioactive waste disposal for 30 barrels of RAW generated will cost $30,000.
Thus, the total cost of the laboratory portion will be $1,271,760. - Combined with the estimate for the preliminary work, $382,500, and the work to decommission the Radioactive Waste Annex, $180,700, the total cost for decommissioning the Reactor complex, exclusive of that portion of the facility that is covered by the Reactor license, is $1,834,260.
v IECOPLAN.RIT Pass li
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Total Decommissioning Costs for License SNM-362 Summing the costs of the various parts of the radiological areas used in work under license SNM-362 leads to a total cost estiinate as shown in Table 10 for decommissioning.
Table 10 - SNM-362 TOTAL DECOMMISSIONING COST ESTIMATE (in 1993 $k) l Facility Cost in 1993 $
laboratories 1,071,372 accelerators 481,074 reactor 1,834,260 TOTAL 3,386,706 Esumates of the decommissioning costs projected into the future for license SNM-362 can be based on the " Implicit Price Deflators for Gross National Product", the inflation indicator con.monly used by the Federal Government. This assumes about a 5% per annum increase in costs, leading to estimated costs in future years as shown in Table 11.
Table 11 - ESTIMATES OF FUTURE DECOMMISSIONING COSTS -
Year Projected Estimated Decommissioning Cost 1995 3,725,377 2000 4,572,053 2010 6,265,406 2025 8,805,436 A review of the estimated decommissioning costs for license SNM-362 will be performed at each license renewal application.
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