ML19345G860
| ML19345G860 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 01/26/1979 |
| From: | Hykys R, Laguardia T NUCLEAR ENERGY SERVICES, INC. |
| To: | |
| Shared Package | |
| ML19345G856 | List: |
| References | |
| NES-81A0592, NES-81A592, NUDOCS 8104220536 | |
| Download: ML19345G860 (105) | |
Text
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DOCUMENT NO'NES 81A0592 REV~ 0 J
g NUCLEAR ENERGY SERVICES, INC.
PAGE 1
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EXHIBIT D DECOMMISSIONING STUDY OF ENRICO FERMI ATOMIC POWER PIANT, UNIT 2 Prepared For 8
Detroit Edison Company By Nuclear Energy Services, Inc.
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- 8" Thomas S. LaGuardia and c14n. i nn n<rk. A uvvve APPROVALS DATE TITLE / DEPT.
_$ 1 G N A T U R E Mgr. Engineering Support
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/~2d'7f AC Services
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V 810/22053b
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DOCUMENT NO* NES 81A0592 (1
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NUCLEAR ENERGY SERVICES. INC.
PAGE 2 op 51
.Ov TABLE OF COtfrENTS 2
p Page 5
1.
Summary..........................................................
8 2.
End Product Description..........................................
I 8
l 2.1 Introduction...............................................
8 2.2 Prompt Removal / Dismantling Alternative.....................
9 2.3 Entombment Alternative.....................................
10 2.4 Mothballing Alternative....................................
i 11 j
2.5 Delayed Removal / Dismantling Alternative....................
i 11 l
2.5.1 Dormancy...........................................
. J 2.5.2 Delayed Removal / Dismantling........................
12 1
15 i
3.
Cost Estimate....................................................
15 3.1 Primary Decommissioning Alternatives.......................
15 3.2 Combination Alternatives...................................
l,.
(l' Entombment-Delayed Removal / Dismantling.............
15 li 3.2.1 i:}
3.2.2 Mothballing-Delayed Removal / Dismantling............
18 i
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FORM # NES 205 W78
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DOCUMENT NO. wee annu'
. NUCLEAR ENERGY SERVCES. INC.
PAGE. 3 OF 51 1
1 O I
LIST OF TABLES t
1 Page 1.1 Assumptions Used in Decommissioning Cost Estimates for the Enrico Fermi, Unit 2, Atomic Power Plant.........................
21 r
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r 1.2 Sumary of Fermi 2 Decommissioning Cost Estimates................
23 l
1.3 Cost Estimates for Prompt Removal / Dismantling of Fermi Unit 2....
24 1.4 Cost Estimate for Entombment of Fermi Unit 2.....................
30 1.5 Cost Estimate for Mothballing of Fermi Unit 2....................
35 1.6 Decommissioning Cost Estimate Notes..............................
39 1.7 Duration of Fermi 2 Removal / Dismantling Activities...............
41
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1.8 Duration of Fermi 2 Entombment Activities........................
44 I
1.9 Duration of Fermi 2 Mothballing Activities.......................
46 O
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DOCUMENT NO. NES 81A0592 JAR ENERGY SERVICES NC.
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LIST OF FIGURES Figure Nurber Title Page 1
Section of Reactor Building......................
48 2
Top View of Reactor Building Fifth Floor......................................
49 3
Entorb=ent - Removal / Dise.antling Corbination......................................
50 4
Mothballing - Removal / Disr.antling 0
Corbination......................................
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DOCUMENT NO. NES 81A0592 A. EAR ENERGY SERVICES, INC.
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- 1.
SUMMARY
This report provides cost and schedule estimates of the prompt removal / dis-s.antling, entombment, mothballing, and delayed removal / dismantling (after moth-balling or entombment) alternatives for the decommissioning of the Enrico Fermi l
Unit 2 Atomic Power Plant. The estimated cost of each of these alternatives will provide a basis for economic evaluations to be performed by the Detroit Edison Company in planning for the recovery of these costs.
The promit removal / dismantling alternative was selected as the reference case for estimating the costs of decomissioning Fermi 2.
This decommissioning alter-native is the most expensive prompt decomissioning method and provides a basis for comparison to other decomissioning alternatives. For this reason it has been de-veloped in detail in this report.
l l
The p'rompt removal / dismantling alternative assumes the radioactive materials are removed from the site and all buildings and facilities dismantled immediately after shutdown. The dismantling, shipment and burial of activated and contaminatet
[.
systems for this alternative is expensive because the highly radioactive components i
must be removed by remote cutting, shipped, and buried under stringent and costly requirements. The time period required to disnantle, remove waste and restore the site, is 72 months.
The entombment alternative consists of sealing the radioactive components and structures within an entombment barrier at shutdown. Site maintenance costs are provided for security intrusion monitoring equipment, insurance,and facility main-tenanc,e to ensure entombment integrity. Entombment activities require 34 months Lt
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I for coepletion.
The mothballing alternative is the least expensive proept method of decccrd-ssioning. This method consists of draining, de-energizing and securing the plants' operational syste=s. All entrances to plant buildings are secured and a full tine security force is initiated. A yearly cost is associated with the methballinr1 al-ternative to cover maintenance, security and insurance. The ti=e required to r. th-ball the Fer=i 2 plant is ten months.
USNRO Regulatory Guide 1.86 defines mothballing and ento =b=2nt as cpen-ended alternatives with no provision for ultinate disposal. The period required for radioactive caterials to decay to unrestricted access levels is too leng to favor Os rothballing or ento-leent as a viable per=anent alternative.
l l
The delayed remeval/distantling alternative consists of plant disassenbly and I
disposal af ter a der:ancy period of approxir.ately 100 years. At the end of this period, the radioactive r.aterials will have decayed sufficiently to per=it the i
vesrel and internals to be re=0ved without sophisticated re=ote undervater cutting techniques.
The cost esticates for each decoc=issioning alternative for the Fer=1 2 plant are listed below. All costs are in 1978 dollars and include a 25% contingen.y.
Proept Removal /Disrantling
$ 83,420,500 l
Entombment
$ 15,207,400 Entoeb=ent Dormancy
$ 110,500/ year Mothballing 4,845,100 I
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Mothballing Dormancy 277,100/ year Entombmenti - Delayed Dismantling
$ 70,077,000 Mothballing - Delayed Dismantling
$78,354,125 1
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2.0 END PRODUCT DESCRIPTION 2.1 Introduction f
The initial phase of decommissioning activities. after plant shutdown would i
be performed by the existing operating plant staff. These activities would in-clude removal of all fuel and source material from the vessel and storage racks for off-site disposal, in accordance with e'xisting plant technical specifications and procedures.
Plant work areas would be cleaned of surface contamination, as re-quired, and all liquid and sol'.d wastes would be removed. Concurrent with these activities, the utility would submit the Decommissioning Plan to the NRC for ap-I proval.
2.2 Prcept Removal / Dismantling Alternatives With this alternative prompt removal of radioactive material and dismantling of the plant systems and buildings is initiated immediately after shutdown. Acti-vated components such as vessel internals and associated piping systems must be remotely segmented, packaged, shipped and buried under stringent and costly re-quirements. All buildings and structures (reactor, turbine, radwaste,and auxiliary buildings, and the RER complex and cooling towers) are removed from the site to l
three feet below grade. Non-contaminated concrete rubble may be used on-site for fill of building cavities below grade. The site is then restored to its natural contour, landscaped and released for unrestricted access.
O i
Initially the dismantling alternative is the most expensive form of de-conunissioning.
It is an irreversible process in which the plant will never again l
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be used for the generation of electricity. There are no ongoing environmental i
obligations or financial burdens that must be born by the utility as in the en-tombment or mothballing modes of decommissioning. Decommissioning cost and pay-ments are in present day dollars and are not subject to uncertain future monetary rates.
This form of decommissioning is final. k'here is no possibility of future modification of this plant for fossil or modified nuclear electric generation, that may possibly develop from technological advancements.
2.3 Entombment Alternative O
The entombment alternative consists of removing spent fuel and wastes, de-contamination or removal of contaminated material and equipment outside the en-tombment boundary, and construction of an entomb =cnt barrier within the reacts -
t building.
l The entombment barrier was selected to be within the reactor building to limit the plant areas requiring controlled access. The boundary for Fermi 2 en-tombment consists of the reactor primary containment (drywell, supression charber, bioshield, and adjacent reactor building structural concrete per Figure l's 2).
The entombment barrier will contain the radioactive reactor vessel and internals, reactor coolant system piping within the drywell, incore instrumentation system, and other miscellaneous components. All openings in this boundary, including the fuel pool and service pool, and equipment and access hatches will be sealed with 2 ft.
thick reinforced concrete slabs to prevent personnel entry.
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The reactor vessel and reactor coolant system will be drained. All pipes will be cut and seal welded closed near their prisery containment penetrations.
All remaining contaminated syste=s external to the entorbment boundary will be decontaminated or removed for off-site burial in controlled burial grounds. This will include contaminated systems in the auxiliary building, radwaste building, add the turbine building. Non-contaminated systems in all buildings will be drained, de-energized and retired in place.
All syste=s required during the Dormancy Period such as fire protection, light-ing and radiation and intrusion mopitoring will be prepared for continued use.
O x11 re = tor==i1e1=e. a=xiii rr d=11di=e terst e >=itei=e
=d asa ce=>1ex exte==a1 doors and hatches will be locked closed. All other accesses to plant buildings will be secured to prevent unauthorized entry, but will be accessible for periodic inspections.
A final radiation survey will be performed of all plant buildings and grounds t.
outside the ento-5-*nt barrier to ensure that there is no radioactive contamination i
i above unrestricted access levels.
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2.4 Mothballing Alternative i
i In the mothballing alternative all fuel and in-core source material is removed from the site. All plant areas are cleaned and liquid and solid wastes are pro-cessed for disposal. Contaminated and noncontaminated systems are drained, de-energized and retired in place.
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All systems required during the Dormancy Period such as fire protection, light-ing and radiation and intrusion senitoring will be prepared for continued use. All reactor building ', auxiliary building, turbine building &nd RHR complex external
- i doors and hatches will be locked closed. All other accesses to plant buildings will be secured to prevent unauthorized entry, but will be accessible for periodic in-I' L
spections.
A full time security force and a yearly maintenance cost is incurred with this alternative.
2.5 Delayed Removal / Dismantling Combinations 2.5.1 Dormancy A Dormancy Period of approximately 100 years is estirated to provide sufficien-time for the radioactive vessel internals to decay to levels low enough to permit manual removal. Specifically, the nest highly activated top guioc will decay to a contact exposure rate of 300 mR/hr. This reduced radiation level would eliminate the ne-d for special remote-operated underwater cutting tools, necessary for dis-I mantling at reactor shutdown, to segment and remove internals and vessel segments.
The 100 year Dormancy Period would also allow for contamination in reactor auxiliary systems (primarily Co60) to decay to unrestricted access levels. For purposes of this study, unrestricted access levels are assumed to be below 0.4mR/hr at 1 cm.
The decay process will eliminate the need for decontaminatica of any sys-O For the Entombment alternative there will be no need for a full-time physical l*
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security guard force during the Dormancy Period since all radioactive r.aterial is contained within the entombment barrier. Periodic inspections would be made in accordance with USNRO Regulatory Guide 1.86 as described below.
A fulltime security force is assumed for the Mothballing alternative since the radioactive material is not protected by an entombment barrier.
The Dormancy Period of approximately 100 years will require monitoring of in-i trusion and radiation detectors. The alarms for these detectors would be installed in either an adjacent manned utility-owned facility, or in local law enforcenent agency facilities. These monitors must be inspected and maintained periodically.
O The plar.t bu n dings and grounds must be maintianed to insure the integrity of the perimeter fence and access doors to the plant buildings. These physical bar-riers should be inspected quarterly in accordance with USNRC Regulatory Guide 1.86.
A facility radiation survey should be performed at least quarterly to verify that no radioactive material is present beyond the entomb =ent barriers.
An environmental radiation survey should be performed at least semiannually to verify that no significant amounts of radiation were released to the environment 2.5.2 Delayed-Removal / Dismantling At the end of the 100 year Dormancy Period described above, the Dismantling and Removal phase of the decormissioning program will be initiated.
In general, al 9
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radioactive structures, systems and cocponents will be removed and shipped to con-trolled burial sites. The remaining non-radioactive systems and components will be removed for potential scrap value. All structures will be demolished to a. level of 3 ft. below grade and non-contaminated concrete will be used on-site for fill. The disposition of specific structures, systems and components are discussed below.
Access barriers installed or constructed for the ento: bment alternative must i
be removed. The concrete entombment barrier over the vessel, fuel pool,and service
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pool must be dismantled by controlled blasting.
The portions of the plant that are radioactive after the 100 year Domancy O
> =toa re th etor v==e2
=* i=t ra 2=-
'* coat et so or r t or th tar guide will be 300 mR/hr. which is low enough to per=it direct access for manual cutting using a plasma are cutting torch. These components will be cut into seg-ments, packaged and shipped for controlled burial. All other internals and the vessel may similarly be removed ad shipped for controlled burial. Upon removal of the reactor vessel and any local contamination from the cutting activities, the site will be free from any radioactivity.
I All non-contaminated piping, valves, pumps and electrical equipment will be removed from the reactor building and either salvaged or sold for scrap. The over-head crane will be the last piece of equipment to be dismantled within the reactor building and sold for scrap. The structural steel top of the reactor building will be removed by wrecking ball, torch cutting and mechanical disassembly. The remain-O ing concrete will be removed by controlled blasting.
C$ncurrent with removal of the components in the reactor building, systems non l
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essential to the dismantling activities may be removed from the auxiliary building, radwaste building, RHR complex, and turbine building.
Circulating water pumps, tanks and piping will be removed and scrapped. The systems essential to dismantling such as electrical distribution, plumbing, heating and ventilation will be secured and removed from each building when they are no longer required to support dismantling.
Each building and the cooling towers will be dismantled to 3 ft. below the grade level. Structural steel will be cut into shippable lengths and sold for scrap.
Concrete floors, walls and roofs will be remon d and used as fill for the building cavities below grade level. Iocal sand or soil may be used to fill the remaining foundation cavities to grade level. The site will be graded as required to conform to the surrounding site contour.-
O A final radiation survey will be performed to insure there is no radiation in excess of unrestricted access levels. Upon approval of the final survey the USNRO will terminate the possession-only license and ruturn the site to unrestricted use.
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- 3. COST ESTIMATE The basis for the cost estimates was the AIF-NESP study report, "An Engineering I
Evaluation of Nuclear Power Reactor Deconsnissioning Alternatives" by W.J. Manion and T.S. LaGuardia. The unit cost factors used in the estimate for the Fermi 2 plant were in 1978 dollars and were adjusted to reflect the labor cost in the vicinity of the plant. The assumptions made concerning the size of Fermi 2 relative to the AIF Study reference plant, labor rates in the Detroit vicinity, and cost re-ductions after the 100 year dormancy period are listed in Table 1.1.
3.1 Primary Decomissioning Alternatives The cost estimates for the primary decomissioning alternatives of Prompt Removal / Dismantling, Entocirnent and Mothballing are surrearized in Table 1.2.
The costs for each major activity are presented in Tables 1.3.hrough 1.5.
Table 1.6 lists the notes referenced in the cost tables to explain key elements of specific work activities.
rf.1 3.2 Combination Alternatives The cost estimates for the combination decorrnissioning alternatives of En-tombment-Delayed Removal / Dismantling and Mothballing-Delayed Removal / Dismantling are shown graphically in Figures 3 and 4, respectively.
O 3.2.1 Entombment - Delayed Removal Dismantling,
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'I The ' Entombment" curve shown in Figure 3 represents the initial cost of 8
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achieving the entombed condition plus the cu=ulative maintenance and surveillan:e costs at any point in time. ' The " Removal-Dis =antling" curve represents the cost of perforring removal-dissantling at any point in time. Therefore, the "Ent--%-,-t/
Rem: val-Dis =antling" curve represents the accu =ulated costs at a point in ti=e plus the cost of co plete dis e.tling at that point in time. The usefulness of this re-presentation is to indi= ate when significant reductions in dis =antling cost o: =
due to technical simplification. It is those points in ties which should be evalua-ted econo =ically, reflecting escalation and the time value of reney, against other alternatives.
The re:cval-dis =antling costs in this coetination rode exclude the pre-de: =-
O r.issioning period cost sin =e these costs are included in the entccinent phase.
Table 1.4 shows the total entechnent cost to be 512.2 million and Table 1.3 shows the total dissantling cost to be $66.7 r.illion. The initial dismantling ecst she-r.
on the figure is $61.8 million which reflects sero pre-de:-r--issioning cost and the re= oval work already accecplished in enterceent. The annual raintenance and sr-veillance cost is $88,400.
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The first cost reduction breakpoint of the removal-dismantling cost cun*e occurs at 52 years when the syste= with the highest conta ination level decays to unrestricted access levels (assumed for purposes of this study to be 0.4=5/hr at
~ 1 cm) and does not have to be decontaminated, shipped and buried. The controlling BWR system in this case is the recirculation system which has an estimated initial l O i=t r= 1 tr r 6e r >=5 a'81-ert- =12r tr== c '
===t =1= ti==-
't takeh52yearsfortherecirculationsystemCo60 to de=ay to 0.4 r.P/hr, at which
+4== a $10.5 million dismantling cost reduction is possible. This cost reduction results from the elimination of deconta-ination, shipping and burial, and fro =
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simplified concrete removal using conventional removal techniquer at lower cost 3
($87/yd vs $330/yd ).
These reductions are associated with critical path activi-ties, and accordingly reduced period dependent undistributed costs are also.in-cluded.
l The second breakpoint of the dismantling cost curve at 104 years shows the cost reduction for manual removal of vessel internals, burial and shipping. Manual remova) is possible because ti.e most radioactive internals (top guide) will have decayed to a contact dose rate of 300 mR/hr.* The following items will decrease 60 f
in cost as a result of 104 years Co decays l
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ITEM COST DECREASE, $
l i
1.
vessel remote tooling 965,000 2.
Internals cutting (includes shipping and burial) 2,065,800 3.
Vessel cutting (includes shipping and burial) 1,452,800 4.
Decontamination 568,400 5.
Concrete removal 2,531,4c0 d
6.
Shipping (piping, components and structures) 2,352,700 7., Burial (piping, ixmponents 3,048,900 and structures)
,
- Arbitrarily selected as"the criteria for which manual removal is considered feasible.
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Undis.tributed Costs 14,137,500 TOTAL DECREASE:
27,122,500 This reduces dismantling costs from $61.8 million (immediately following entombment)
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to $34.7 million (after 104 years delay). Therefore, the total cost for Entombment Delayed Removal / Dismantling after 104 years delay is $56.1 million in 1978 dollars (excluding contingency, escalation and the time value of money).
3'. 2. 2 Mothballing - Delayed Removal / Dismantling The Mothballing - Delayed Removal / Dismantling curves are shown in Figure 4 and are similar to those in Figure 3.
O Table 1.5 shows the total Mothballing cost to be $3.9 million and Table 1.3 l
shows the total Dismantling cost to be $66.7 million. The difference of $62.8 million represents the cost of dismantling shortly after shutdown excluding pre-decommissioning. The annual maintenance and surveillance cost is $221,700.
i The first cost reduction breakooint of the dismantlino cost curve occurs at i
60
[
52 years when the recirculation system co will have decayed to 0.4mR/hr. At this an $11.4 million dismantling cost reduction is possible. This cost reduction re-sults from the eliminatir.n of decontamination, shipping and burial, and from simplified concrete r'emoval using conventional removal techniques at lower cost 3
3
($87/yd vs $330/yd ).
These reductions are associated with critical path activi-tiest and accordingly the period dependent undistributed costs would also be re-O duced.
The undistributed costs are included in the $11.4 million reduction.
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O The second breakpoint of the dismantling cost curve at 104 years shows the cost reduction 'for manual removal of vessel internals, burial and shipping.
Manual
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removal is possible because the most radioactive internals (top guide) will have de-cayed to a contact dose rate of 300 mR/hr.* The following items will decrease in.r?\\
GO cost as a result of 104 years Co decay:
COST DECREASE, S ITEM 1.
Vessel remote tooling 965,000 2.
Internals cutting (includes shipping and burial) 2,065,800 0
3-v 1==ttiae (i==2=a -
shipping and burial) 1,452,800 i
(
i 4.
Decontamination 710,900 5.
Concrete removal 2,570,200 l
6.
ShippLs (piping, components and structures) 2,352,700 7.
Burial (piping, components and structures) 3,048,900 8.
Undistributed Costs 14,137,500
'crr^t occar^$== 27 soa aoo O
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- Arbitrarily selected as the criteria for which manual removal is considered feas
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This reduces dismantling costs from $62.8 million (incediately following r.cth-balling to $35.5 million (after 104 years delay). Therefore, the total cost for Mothballing - Delayed Removal / Dismantling after 104 years delay is $62.7 million in 1978 dollars (ircluding contingency, escalation and the time value of money).
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TABLE 1.1 ASSUF2TIONS USED IN DECOMMISSIONING COST ESTIMATE FOR FERMI 2 ATOMIC POWER PIAhr 1.
Plant size is approximately the same as the reference BWR plant in the AIF Stud)
Adjustments for volumes of concrete were made per Detroit Edison Corpany draw-ings of the Ferni 2 plant.
2.
Contract Labor costs were estimated from rates provided by Detroit Edison Con-O ev ror tse oetz it re.
3.
Consultant rates were estimated at $45/hr. (vs. $30/hr. in the AIF Study).
4.
Salaried employee rates used in the study were increased 55% over those used in the AIF Study (to account for escalation and regional variation).
5.
Material and Capital Equipment costs were increased by 35% and 22% respectively over those used in the AIF Study (for gscalation and regional variation).
6.
All costs shown are in 1978 dollars and are 1978 costs.
7.
Shipping costs were increased from AIF costs due to the increase in distance O
to the burial grounds.
The AIF Study assumed a 500 mile distance to a burial ground. The Fermi 2 plant is approximately 2300 road miles (one way) fro = the i
wa' te burial site on Federally owned land near Richland, WA.
The Richland s
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TABLE 1.1 (continued) burial site was used as the basis for shipping costs.
8.
No decon:tsmination will be required at the dis =antling phase af ter the 103 year dormancy period.
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9.
Disposal of the reactor vesse1 and internals after the 103 year derrant period will sti11 require controlled burial as either low specific activity (LSA) or large quantity radioactive material. Estimated cost for burial of the vessel and internals after 100 years decay is esticated to be approximately 10% of the cost to bury these co=ponents if dis =antled at shutdown.
O 10.
conta=1nated co=,onents vizi decar to unrestricted a= cess 1evets euri=2 the 100 year dormant period and may be sold as scrap.
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i Table 1.2 1
SUtiMARY OF FET.MI 2 DECOMMISSIONING COST ESTIMATES i
Cost
- Description 83,420,500 Prompt Re:noval/ Dismantling 15,207,400 Entombment l
i 110,500/yr Dorrancy after Entombment 4,B45,100 Mothballing 277,100/yr Domancy after Mothballing Entombment / Dismantling After 104 years Delay 70,077,000 I
1 I-Mothballing/ Dismantling After 104 years Delay 78,354,125
't 1
Costs are in 1978 dollars and include a 254 contingency factor l
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$.s TABLE 1.3 Notes COST ESTIMATE FOR PROMPT (on RZM3 VAL / DISMANTLING OF FERMI UNIT 2 Table
'G DECON-TAMINATION REMOVAL SHIPPING BURIAL TOTJ.L MAJOR ACTIVITY NOTI 1.
Rer.ove fuel and incore source ma-
- 33g, terial 2.
Clean plant areas,
and process all liquid and solid r;ot wastes.
3.
Review plant draw-
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55,100 ings.
4.
Perform detailed 26,000 radiation survey.
5.
Estir. ate residual l
6,600 by-product inven-tory O
6.
Prepare and sub.it possession-only 22,500 license application with revised tech-nical specifica-tions.
7.
Prepare end product 5,400 discription.
i 8.
Perfor:n detailed calculations of f
32,500 by-product inven-t tory l F 9.
Define major se-quence of work 7,200 activities.
LO.
Perform safety analysis of the 16,200 dismantling oper-ations O
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51 TABLE 1.3 COST ESTIMATES FOR PROMPT RE)CVAL/ DISMANTLING OP FERMI UNIT 2 DECON-i TAMINATION REMOVAL
- SHIPPING, BURIAL TOTAL MAJOR ACTIVITY NOTE 11.
Submit dismantle-ment plan to NRO 11,200 for approval 12.
Receive possession erily 31 cense -
1,800 deactivate reactor 5 implement revised technical specifica-tions 13.
Receive discantle-ment order; co.: ence dismantling removal program Sub-Total Pre-Deco = is-sioning work activities 184,500 Undistributed costs, Removal / Dismantling 17,300 Project Management 17,300 Engineering QA l
Utility staff during Pre-Decomtissioning 3,255,000 period Decommissiong staff 208,100 start up Sub-Total Undistributed I
3,497,700 Total Pre-Decot. mission-ing Period Cost 3,682,200 i
14.
Prepare activity
- E' 1,088,600 dismantling 15.
Prepare integrated dismantlement se-21,600 quence.
i
.O DOCUMENT NO. me==e
" f NUCLEAR ENERGY SERWCES. INC.
'N 51 PAGE 26 OF S- -
TAF2: 1.3 i
COST ESTIMATES FOR PROMPT l
REMOVAL / DISMANTLING OF FERMI UNIT 2 l
DECON-TAMINATION REMOVAL SHIPPING -
BURIAL
' ICTAL MAJOR ACTIVITY NOTE!
16.
Perform plant preparation and,
283,300 construct temporary facilities 17.
Design teeporary -
liquid waste clean
(
9,000 up system 18.
Design & procure l
965,000 cutting equipment ~
~
for vessel and internals removal 19.
Procure contamin-ation control enve-102,100 lope and special equipment 20.
Obtain contracts for cask liners and 9,000 shipping containers 21.
Prepare detailed l
work procedures I
789,400 for dismantling activities 22.
Install te=porary liquid waste 29,300 cleanup syste=
23.
Remove and dispose f n n-essential 137,200 2,515,700 1,707,300 2,312,400 6,672,600 syster.s 24.
Decontaminate, cut, ship, and bury dry 1,300 1,900 7,500 9,200 19,900 well head 25.
Decontaminate expos-ed surfaces of 1,300 1,300 reactor vessel head 26.
Cut, load, ship,,and bury the reactor 76,500 191,700 21,000 289,200 vessel head
me
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DOCUMENT NO. "
- 592 4'
,. a M ENERGY SERVICES, ENC.
PAGE 28 OF 4 TABLE 1.3 COST ESTIMATES FOR PROMPT REMOVAL / DISMANTLING OF FERMI UNIT 2 DECON-TAMINATION REMOVAL SHIPPINO-BURIAL TOTAL MAJOR ACTIVITY NOTE!
38.
Backfill building 527,400 foundations 39.
Grade and land-l 202,800 scape site 40.
Prepare and sub=it a final dismantling 27,000 program report and request ternination of the possession-only license includi,g survey results.
41.
Terminate possess-1,800 i n-only license and return site to unrestricted use Sub-Total IRemoval/ Dis-710,900 23,444,700 7,320,300 5,067,900 44,295,900 Mantling Work Activities Removal / Dismantling Undistributed Costs:
l Process liquid waste gen'-
675,600 erated by decontaminatidn l!
Decommissioning staff l
(through Activity 35) 14,429,500 Decommissioning staff 1,041,900 (after Activity 35)
Health Physic,s Supplies,;I l
264,000 l
Decontamination Rig and 180,000 supplies l
i 1,018,300 Heavy Equipment i
Equipment for pipe cut "
41,400 ting 558,000 Security Force g
775,000 11uelear Insurance 864,000 Engineering Consultants
DOCUMENT NO. ES 81A0592 NUCLEAR ENERGY SERVICES, INC.
PAGE to OF-M TABLE 1.3 COST ESTIMATES FOR PROMPT REMOVAL / DISMANTLING OF FERMI UNIT 2 DECON-TAMINATION_
REMOVAL SHIPPING.
BURIAL 50;AL MAJOR ACTIVITY
};3Tre Project Administration 2,592,000 (QA)
Sub-Total Undistributed 22,440,500 costs:
Total Decomissioning Costs: Removal /Dise.antl-66,736,400 ing.
O l
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9 O
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DOCUMENT NO. NES 81A52,9 l'
.):b NUCLEAR ENERGY SERVICES,INC.
PAGE in OF 51 w
TABLE 1.4 Notes (on Cost Estimate for Entombment of Fermi Unit 2 Table 1 m DEC0!i-TA!!INATIO t REMOVAL SHIPPING BURIAL TOTAL MAJOR ACTIVITY NOTE!
ENTOMBMENT l
1.
Remove fuel and l
incore source ma-tiote terial 2.
Clean plant areas and process all
. liquid and solid Note vastes.
3.
Review plant draw-55,100 in95 4.
Perform detail radi-26,000 ation survey.
5.
Estimate residual 6,600 by-product inven-tory.
6.
Prepare and submit possession-only license application 1
22,500 with revised tech-I mical specifications 7.
Prepare end product 5,400 description 8.
Perform detailed calculations of 32',500 by-product inventory 9.
Define major se-quence of work 7,200 activities
- 10. Perform safety anal-ysis of the entomb-16,200 ment operations
- 11. Prepare a safety analysis of the 90,000 end product
~
- 12. Prepare and submit 11,200 Entombment plan to 19
DOCUMENT NO.
ses 81AS29 q
J' NUCLEAR ENERGY SERVICES,INC.
5 PAGE u
or 51
, cs TABLE 1.4 (continued)
{
DECON-
' TAMINATION REMOVAL SHIPPING BURIAL
'!OTAL MAJOR ACTIVITY NOTE
- 13. Receive possession-only licenser de-activate reactors 1,800 implement revised technical specifi.
cations. NRC review l
of Entorbment plan and issue of Entorb-ment Order SUB-TCTIAL PRE-DECO.T*.IS-SIONING WORK ACTIVITIES, 274,500 ENTOMBMENT UNDISTURBED COSTS, ENTOMBMENT 25,900 Project Management 25,900 Project Quality Assur 3,255,000 Utility Staff 38,800 Deco==tissioning Staf f SUB-TOTAL UNDISTRIBUTED 3,345,600 COSTS f
TCrrAL PRE-DECO.t!ISSION-1 ING PERIOD COST, ENIOMB,
l 3,620,100 MENT i
- 14. Prepare activity 144,000 specifications for, entombment
- 15. Prepare integrated 16,200 entorbment sequence
- 16. Prepare detailed work procedures for 86,400 entorthment opera-tions
- 17. Drain, de-energize and secure non-con-90te taminated systems e
_ ~
DOCUMENT NO. NES 81A529 NUCLEAR ENERGY SERVICES,INC.
2 PAGE 32 OF-si
.el 6
TABLE 1.4 (continued)
DECON-TAMINATION REMOVAL SHIPPING-BURIAL
'!OTAL MAJOR ACTIVITY MOTES
- 18. Drain reactor vas-sel l
- 19. Drain, deconta=1-nate, de-energize and secure or 376,900 172,800 192,400 518,000 1,260,100 re=ove the conta=1-nated systems.
- 20. Prepare lighting, fire protection, ventilation and 7,800 alar = systems for post deco==ission-ing use.
- 21. Construct ento =b-C ment structure.
102,200
~
~
- 22. Install reactor cont-7,800 ain=ent pressure equalization line.
- 23. Decontaminate 89,400 floors and walls
- 24. Perform radiation survey Hote
- 25. Secure b'ilding u
access Hote l
- 26. Prepare and sub=it,
l 9,300 final report to l
NRC l
O e
e
g DOCUMENT NO. _ NES 82 A529 NUCLEAR ENERGY SERVICES. INC.
?
4 PAGE OF M1 0
TABLE 1.4 (continued)
DECON-TAMINATION REMOVAL SHIPPING.
BURIAL
'IOTAL MAJOR ACTIVITY NOTE!
SUB-TOTAL DECOMMISSION-ING UORK ACTIVITIES, 1,723,200 E W.: 3 MENT l
i UNDIt?RIBUTED COSTS, ENTOMBME:C
\\
Process liquid wastes 441,300 gr.nerated by decontam-ination 4,650,000 Decocmissioning staff Health physics 41,500 supplies l
125,600 Deconta:.ination rig.
and Other decontamination equip =ent Equipment for pipe 41,700 cutting & hoists 207,400 Security Force 408,000 Engineering consultant 232,500 Project Quality Assur.
i 232,500 Project Administration 442,100 Nuclear Insurance SUB-TCfrAL UNDISTRIBUTED 6,822,600 COSTS, ENTOMSMEtC l
TCyrAL DECOMMISSIONING 12,165,900 COSTS, ENTOMBMENT O
POST DECOMMISSIONING '
DORMANCY COST (ANNUAL)"
- 27. Perform quarterly inspections defined 0,800 in Regule-tory Guide
i O
DOCUMENT NO, NES 81A529 NUCLEAR ENERGY SERVICES,INC.
't PAGE ta op__
51 2
TABLE 1.4 (continued)
DECON-TAMINATION REMOVAL SHIPPING BURIAL g AL MAJOR ACTIVITY yo;g 28, Perform semiannual.
15,500 environ = ental survey 29, Prepare reports de-22,400 fined in Regulatory Guide 1.86 SUB-TOTAL POST-DECOM-ISSIONING WORK 58,700 ACTIVITIES, DOR."R30Y UNDISTRIBUTED COSTS (per year), DORMANCY Health physics 1,000 supplies Nuclear Insurance 1,000
- ote
- ' ^
- "C' 27,700 SUB-TCYrAL UNDISTRIBUTED 29,700 gg
,,;g COST FOR 88,400 DOP.uR;0Y PERIOD l
l 1
e.
e a
O 0
0
sO DOCUMENT NO.
NES 81A0592 NUCLEAR ENERGY SERVidES,INC.
OF M PAGE "
U TABLE 1.5 Cost Estimate for Mcthballing of Fermi Unit 2 DECoti-BURIAL
'1DTAL MA.70R ACTIVITY NOTE TAMINATION REMOVAL SHIPPING PRE-DECOW.ISSIONING COST t
1.
Remove fuel and in-core source material:;ote 2.
Clean plant areas and process all flote liquid and solid wastes.
3.
Review plant 22,500 drawings 4.
Perform detailed
';ote Plant radiation survey O
5-z tt= te re ia= 1 by-product material 6,900 inventory l
6.
Prepare and submit possession-only t
22,500 gicense specifica-tions 7.
Define major sequenc r 3,600 8.
Receive possession only license; de-1,800 activate reactor, l'
implement modified technical specific,-
ations SUB-TOTAL PRE-DECOMMIS-SIONING M ACT M TIES 57,300 UNDISTRIBUTED COSTS:
Project Management & Qua-13,700 lity Assurance l
SUB-TCrfAL UNDISTRIBUTED 13,700 COSTS I
i j
'IOTAL PRE-DECOMMISSION-IHO PERIOD COST:
l 71,000
O DOCUMENT NO wrs e1Aos92
?.
NUCLEAR ENERGY SERVICES,INC.
OF 51 PAGE "
i TABLE 1.5 COST ESTIMATE FOR MOTHBALLINO OF FERMI UNIT 2 DECON-TAMINATION REM 3 VAL SHIPPING BURIAL
'MyfAL MAJOR ACTIVITY KOTE DECOMMISSIONING WORK ACTIVITIES
- 9. " Prepare detailed 71,300 work procedures
- 10. Define post-decc=-
missioning systen Note requirements
- 11. Drain, de-energize and secure non-con-Note tamimated syste=s.
- 12. Drain reactor ves-Note sel.
- 13. Drain, flush, de-
~
energize and secure contaminated l
systems i
- 14. Prepare syste=s post-deco==iss?
7,800 ioning period.
- 15. Install reactor o ntainment Pressure 7,800 equilization line.
[ -
- 16. Re=ove loose contanination from -
ygo building pathways.
- 17. Perform radiition su.cvey of the plant Not and post radiation signs.
- 18. Secure all accesses to the plant build,-
Not ings.
e
DOCUMENT NO.
NES BIA0592
'. +
NUCLEAR ENERGY SERVICES, INC.
~.
P. AGE 17 OF M C:
TABLE 1.5 COST ESTIMATE FOR MOTHBALLING OF FERMI 2 DECON-TA".INATION REMOVAL SHIPPING' BURIAL
' ICTAL MAJOR ACTIVITY NOTE!
SUB-TOTAL DECOMMISSION-86,'900 ING WORK ACTIVITIES I
UNDISTRIBUTED COSTS:
441,300 Disposal of liquid wastes 2,753,600 Utility staff l
46,800 Health physics supplies 69,800 Security force 48,600 Flushing rig 15,100 Other flushing equipment 120,000 Engineering consultants
{}
Nuclear insurance 223,000 SUB-TOTAL UNDISTRIBUTED COST:
3,718,200
'IOTAL DECOMMISSIONING COSTS: MOTHBALLING l
3,876,100 l
POST DECOMMISSIONING
_PER YEAR)
(
j 1
19.
Perform quarterly inspections defined 20,800 in Regulatory Guide 1.86.
l l
20.
Perform semi-annual environmental survey 21.
Prepare reports defined in Regulator r 22,400 Guide 1.86.
()'
MISSIONING WORK ACTIVI-SUB-TOTAL POST-DECOM-58,700 UNDISTRIBUTED COSTS:
(_PER YEAR) l
O DOCUMENT NO. NES 81A0592 NUCLEAR ENERGY SERVICES, INC.
PAGE 1R CF-53 l
TABLE 1.5 CCST ESTIMATE FOR M7THBALLING OF FERMI 2 l
DECON-TAMIN* TION REMOVAL SHIPPING-BURIAL MTAL MAJOR ACTIVITY NOTE:
Full time security 93,000 force 1,000 Health physics supplies Nuclear insurance 1,000 68,000 Maintenance allowance l
SUB ' ICTAL UNDISTRIBUTED 163,000 COSTS:
'MIAL POST-DECO:: MISSION-ING COSTS (PER YEAR) 221,700 See Table 1.6 for Notes I
l t
I c
O l
e e
9-l 4
(~)
t DOCUMENT NO.
,, NUCLEAR ENERGY SERVICES, INC.
l 39 PAGE OF 51 TABIT. 1.6 DECOMMISSIONING COST ESTIMATE NOTES a.
This activity will be performed by the utility staff. The cost is insluded in the undistributed cost category.
b.
Utility Staff During Entombment Pre-Decommissioning consists of the same plant operations staff as for an operating reactor, and utility craft labor such as mechanics, health physics technicians, maintenance personnel, used during decommissioning.
c.
Decommissioning Staff Startup consists of the administrative staff con-tracted to perform the decommissioning. This would include a project superintendent, administrative personnel, health physics technicians, clerks, and craft labor.
d.
Utility Staff During Dismantling Pre-Decommissioning consists of a plant superintendent, admininstrative services assistant, health physicist, maintenance supervisor, plant engineer, shift supervisors, operators, clerks, and craft labor. This is a reduced staff, smaller
()
than that used for Entombment Pre-Decommissioning.
Decommissioning Staff (after Activity 25) for Dismantling represents e.
l a reduced dismantling workforce because of the reduced work activity.
l 1.
Non-essential systems ares l
Main Steam Control Rod Drive Reactor Core Isolation Core Spray High Pressure Coolant Injection Automatic Depressurization Emergency Equipment Cooling l{
Primary Containment Punp Back Containment Nitrogen Inerting Standby Gas Treatment Turbine Generator i
~
l Main Condenser Turbine Bypass Feed and Feedwater Heate, Circulating Water Condensate Fuel Pool Cooling i 2;st e,
Fuel Handling (inc1pding nev and spent fuel racks)
()
Turbine Building closed Cooling Uater Control Room Chilled Water Standby AC Power Supply DC Power
! i
..t g[, NUCLEAR ENERGY SERVICES,INC.
DOCUMENT NO.
?
PAGE 40 op q O
g.
Essential Systems are:
Reactdr Water Recirculation i
I Reactor Water Cleanup Condensate Storage Facilities Electric Power Instrumentation & Control Compressed Air Reactor Building Closed Cooling Water General Service Water Demineralized Water Makeup Potable & Sanitary Waste Water Heating, Ventilation, and Air Conditioning Fire Protection
~
Gaseous Radwaste Liequid Radwaste Solid Radwaste O
G
?
1 h
!O 1
i
NUCLEAR ENERGY SERVICES, INC.
DOCUMENT NO.
m c nunso3 PAGE 41 OF_ 51 4
O TABLE 1.7 DURATION OF FERMI 2 REMOVAL / DISMANTLING ACTIVITIES DURATION PERIOD, ACTIVITY MONTHS 1.
Remove fuel and in-core source material 0 1/2 2.
Decontaminate plant areas and process 0 1/2 all liquid and solid wastes 3.
Review plant drawings b-1 4.
Perfom detailed radiation survey 1-3 5.
Estimate residual by-product inventory 1-1/2 1/2 O
Prepare and submit possession-only 1-1/2 - 4 6.
license application with revised technical specifications 7.
Prepare end product description 2-1/2 - 3 e
8.
Perform detailed calculations of by-2-1/2 - 5 I
product inventory activities 1.l Define major sehence of work 9.
3-5 ll activities Ii 10.
Perfom safety analysis of the 4-1/2 1/2 dismantling operations 11.
Prepare and submit Dismantling Plan 6-9 To NRC for approval lli 12.
Receive Possession-only license; 6-1/2 1/2 deactivate reactors implement l!
revised technical specifications li 1
- 13. NRO review of Dismantling Plan and 9 - 12 Issue of Dismantling Order 14.
Prepare activity specifications 2 - 14 l,
for dismantling l,
romu e ass aos wm
O DOCUMENT NO.
wre siansM
[ NUCLEAR ENERGY SERVICES,INC.
4 PAGE OF 51 O
TABLE 1.7 DURATION OF TERMI 2 REMOVAL / DISMANTLING ACTIVITIES i
DURATION PERIOD, ACTIVITY Moimis
' 15.
Prepare integrated dismantling 12 - 14 sequence 16.
Perform plant preparation and con-struct temporary facilities 0 - 12 17.
Design water cleanup system 11 - 12 18.
Design and procure remote cutting equipment for vessel and internals 6 - 13 removal 19.
Procure conta.ination control 10 - 13 l
envelope and special equipment l
[
20.
Obtain contracts for casks, liners, 11-1/2 - 13 l
and shipping centainers 7 - 15 21.
Prepare detailed work procedures for dismantling activities 22.
Install water cleanup system 12 - 13 23.
Drain, decontaminate, remove and 8 - 19 dispose of non-essential systems.
24.
Decontaminate, cut, ship, and bury drywell 11-1/2 - 12 l
head 25.
Decontaminate exposed surfaces of reactor vessel 12 1/2 head 26.
Cut, load, ship and bury the reactor vessel head 12-1/2 1/2 27.
Cut, ship and bury vesse? internals 12 - 28 O
28.
Cut, ship and bury reactor vessel 28 - 46 29.
Drain, decontaminate, remove and dispose of 35 - 61 essential systems
0 DOCUMENT NO. we apn397
" NUCLEAR ENERGY SERVICES,INC.
7' PAGE 43 OF 51 O
TABLE 1.7
, DURATION OF TERMI 2 REMOVAL / DISMANTLING ACTIVITIES I
DURATION PERIOD, l
ACTIVITY MONTHS t
30.
Remove reactor shield wall 46 - 50 31.
Perform radiation survey prior to 50 1/2 opening secondary containment 32.
Remove drywell & torus steel 50-1/2 - 67 33.
Remove reactor building crane 53-1/2 1/2 34.
Remove reactor building structural steel 53-1/2 1/2 35.
Remove reactor & auxiliary building 54-1/2 - 67 concrete (walls & floors) 36.
Remove other plant buildings 46 - 69 37.
Perfom final radiation survey 69 1/2 38.
Backfill foundations 69-1/2 1/2 39.
Grade and landscape 70 - 72 l
40./
41.
Prepare and submit final report to.NBC:
L receive termination of possession-only license 67 - 72 1
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DOCUMENT NO. __ we nianwy NUCLEAR ENERGY SERVICES, INC.
PAGE Ad OF R1 O
TABLE 1.8 DURATION OF FERMI 2 ENTOMBMENT ACTIVITIES DURATION PERIOD, ACTIVITY MONTHS 1.
Remove fuel and in-core source material 0 1/2 2.
Clean plant areas and process all liquid and solid wastes 0 1/2 3.
Review plant drawings 0-1 O
4.
Perform detail radiation survey 1-3 5.
Estimate residual by-product inventory 1-1/2 1/2 l
6.
Prepare and submit possession-only license application with revised technical speci-1-1/2 - 4 fications 7.
Prepare end product description 2-1/2 - 4 8.
Perform detailed calculations of by-product 2-1/2 - 5 inventory 9.
Define major sequence of work activities 3-1/2 - 5 1'
10.
Perform safety analysis of the entembment 4-1/2 1/2 operations 11.
Prepare a safety analysis of and product 3-1/2 - 6
- 12. Prepare and submit Entombment Plan to NRC 6-9 for approval 13.
Receive possession-only license; deactivate 6-1/2 1/2 O
reactors implement revised technical speci-fications
- 14. Prepare activity specifications for 1-1/2 - 14 entombment
-e,-
,,, - - - -,,,, ~,, - -,,,, - - - - - -, -
'o DOCUMENT NO. NES 81A0592 NUCLEAR ENERGY SERVICES, INC.
8 PAGE 45 OF_,51
'O TABLE 1.8 DURATION OF FERMI 2 ENTOMBMEh7 ACTIVITIES DURATION PERIOD, A*:TIVITYa-MONTHS
- 15. Prepare integrated entombment sequence 11-1/2 - 14 16.
Prepare detailed work procedures for 8 - 12 entombment operations 17.
Drain, de-energize and secure non-9 - 13 contaminated systems 18.
Drain reactor vessel 13 - 14 l
l 19.
Drain, decor.taminate, de-energize and 12 - 29 secure or remove the contaminated systems O
20.
Prepare lighting, fire protection and alarm 29 1/2 systems for post decommissioning 21.
Construct entombment structure 14 - 15 22.
Install reactor containment pressure 29-1/2 - 30 equalization line 23.
Decontaminate floors and walls 27 - 29 24.
Perform radiation survey 30 - 31 25.
Secure building access 30 - 31 26.
Prepare and submit final report to NRO 31 - 34 l
DORMANCY 1.
Provide maintenance and surveillance of 100 Years site
O DOCUMENT NO. wm nianno I.
9 NUCLEAR ENERGY SERVICES,INC.
46 PAGE OF M1 O
TABLE 1.9 1
DURATION OF FERMI 2 MOTHBALLING ACTIVITIES i
DURATION PERIOD, ACTIVITY MONTHS 1.
Remove fuel and in-core source material 0 - 6 1/2 2.
Clean plant areas and process 0 1/2 all liquid and solid wastes 3.
Review plant drawings 0-1 4.
Perform radiation survey 1 1/2 5.
Estimate residual by-product inventory l-1/2 1/2 6.
Prepare and submit possession-only 1/2 1/2 license application with revised tech-nical specifications 7.
Define sequence of work activities 1 1/2 8.
Receive possession-only licenses 6-1/2 1/2 deactivate reactors implement re-vised technical specifications b;
9.
Prepare work procedures 1-1/2 1/2 p
10.
Define post-decommissioning system 3-1/2 - 5 requirements 11.
Drain, de-energize and secure non-4-1/2 1/2 contaminated systems 12.
Drain the reactor vessel 7-1/2 - 8 13.
Drain, flush, de-energize 4-1/2 1/2 and secure contaminated systems
- 14. Frepare systems required 7-1/2 1/2 during post-deconunissioning period
,o -. s.
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NUCLEAR ENERGY SERVICES,iNC.
PAGE A7 OF _p i
O r
TABLE 1.9 i
e DURATION OF FERMI 2 PETIHBALLING ACTIVITIES l
DURATION PERIOD, ACTIVITY MO!.'IHS 15.
Install reactor containment pressure 7-1/2 - 8 equalization line r
16.
clean loose contamination frcan building pathways 7-1/2 - 9 j
17.
Perform radiation survey of plant 9 1/2 and post radiation signs O
18.
Secure all accesses to the plant 9-1/2 - 10 buildings l
O
- ^ ^ - - -
.) :,
Pcg2 48 o p),
u.
1 i
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-Roof elevation 735'-6" l
en i
i i
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% structural steel l
[
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's It== w b e im a - e d s s
-5th floor - elevation 684'-t
\\
g Dr'yer Separator l
Fuel Storage Pool S * ** 8' -
P (Re-Pool
-4th floor - elevation 659'-t actor Center elevation 645'-9" Line
- 3rd floor - elevation 641-6'
)
l
- 2nd floor - elev'a tion 613'-i C
Dryvell T
elevation 597'-0" Center I st floor - elevation 583'-t Line i
I ressure Suppression Chamber elevation 557'-9 Center Line Base slab - elevation 540'-t
=. existing reactor building concrete 2 ft. thick reinforced concrete
=
constructed as an entombment barrier SECTION OF REACTOR BUILDING tigure 1 W
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1 2-v6t e.lc..>.w.ti m.p w.v:ce w,
~
2 ft. thick reinforced concrete
=
placed over pools and d m ell as entc,nbment barriers O
TOP VIEW OF REACTOR BUILDING FIFTH FLOOR figure 2
,o,
..:a-
'
- as -
y[
%./
v m
w j
O o
FIGURE 3 i
-l f
O i
y ENTOMBMENT-REMOVAL / DISMANTLING e
70 COMBINATION l
60 1
I 50 p
i.
i I
i l
8 40 A
O M
z i
8 o
>4 d
30 y-g a
- . ' s i
E-.
3..
i b -l m
i.
g 20 i
p#
ENTOMB-REMOVAL / DISMANTLING i
. "" ~~T.
RMVL/DISM.(EXCLUDING PRE-DECOMM)
~ " ", 7 ENTOMBMENT & MAINTENANCE e i
1 g
'I.'.
10 r
I a
I I
f I
i i
f 1
i e
I l
I l
I O
20 40 l
60 80 100 120 140 160 180-i 200 3
=
- 104, 52 g
'I als h.
TI
' EARS g
h U
{
o v
v an N
1 en
$3 a,
1 FIGURE 4 70 MOTHBALLING-REMOVAL / DISMANTLING u
COMBINATION 1
60 l
l i
~
~
50 un
/
/
l
/
i
^/
8 I40 l
w o
=
S X
d
/
30 z:
/-
~
/
s-.
/
/
b HBALL-REMOVAL / DISMANTLING' y
[-
~ i l RMV./DISM.(EXCLUDING PRE-DECOMN)
~
l
/
~ ""' ~ """ MOTHBALLINB & MAINTENANCE ' " -
~
f
/
i
,.i f
/' :
i l
i
/
a
/
,10 y
/
M
/
e e
i i
i e
i e
i i
'60 80 100 120 140 160
- 180, 200 5l2 0
20 40 104 4
-l TIME, YEARS
. =
4 i
f lO f
Answer to Question 3 i
The annual costs associated with the three deconsnissioning alternatives previously dis-l 1
{
cussed are also contained in the report attached to the response to question 2.
These i
j costs are summarized below in 1978 dollars.
Prompt Removal N/A i
i
-Entombment
$110,500/ year 1
Mothballing
$277,100/ year i
d
. O t
t l
l t
I i.
l l
1 i
I Y
I t
LO i
1 3
)
,. _. - _,. ~..
. - -. - -