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l^ Appendix E - Detailed Description of Alternative 1: DOEIRI.r2001-11 I Full Removal and Disposal Rev. e t Dran B RedlinclStrikeout I involved in operating the facility and the building modifications and upgrades necessary to safely 2 accomplish the activities would be identified. Modifications identified would be designed. The 3 services and/or new equipment needcd would be procured. 4 5 No known building repairs or upgrades are needed. Also, it is assumed for this alternative that 6 minimal equipment repairs and upgrades would be necessary. 7 8 E.1.3.1.2 221-U Facility Modifications. l.imited modifications to the 221-U Facility are 9 necessary to accomplish equipment removal and decontamination operations. First, the roof 10 covering (versus the roof structure) of the 221-U Facility would be replaced. Other facility 11 modifications would primarily involve disconnecting and blanking utility and electrical lines 12 where they are no longer required, and installing temporary utilities that would be required to 13 support planned operations. The change room at the northeast end of the operating gallery would 14 be renovated and established as the main access and egress point for canyon operations. Water 15 and drain lines for the change room facility could be tied into the active systems in the 16 271-U Office Building. 17 18 Additional 480-volt electrical service requirements would be installed, as necessary, to support 19 portable ventilation requirements and selected decontamination equipment, such as air 20 compressors for pneumatic tools and temporary greenhouse structures. In addition, 480-volt (""21 electrical service would be installed to support waste processing and decontamination/ 22 disassembly operations within specially designed enclosures erected in section 1 of the 23 221-U Facility. 24 25 Facility modification would also involve removing and disposing of interfering structures, 26 equipment, and material. During this phase of the work scope, equipment and material removal 27 would be limited to "clean" areas of the 271-U Office Building, the 221-U Facility galleries, and 28 associated storage spaces. This activity would include the removal of the following: 29 30 • Installed and fixed equipment 31 • All unattached equipment and components 32 • Abandoned supplies 33 • Materials 34 • Debris. 35 36 These items would be sorted for reuse, recycle, or disposal. 37 38 E.1.3.2 Decontamination and DecommissioninR (D&D) or Railroad Tunnel. Before 39 excavating the northwest side of the canyon, the railway tunnel would be removed. The tunnel 40 extends 46 m(150 ft) eastward from the east side of the canyon building and allowed train 41 access into the third cell of the canyon. The tunnel is a reinforced concrcte structure with a soil 42 cover about 1.5 m (5 ft) deep. There are unreinforced wing-wall retaining structures at the ends (0,^143 of the tunnel. The tunnel is assumed to have light surface contamination that could be fixed in 44 place with fixative application. It is assumed that a backhoc with a processor would be used for Final Feasibility Studyjor the Canyon Disposition Initiative (221-U Facility) iat>s 100 E-7
t^' Appendix E -Detailed Description of Alternative 1: DoE/RI,-2001-11 Full Removal and Disposal Rev. eLUMft 13 Redline/StrikeMt 1 demolition. Demolition debris would be sized for load, haul, and acceptance criteria for ERDF. 2 Demolition of the railroad tunnel would improve access to the building through cell 3. As a last 3 step in railroad tunnel work, a truck door would be constructed at the tunnel's connection to 4 221-U (cell 3). This door would allow access to the building without disrupting proper 5 ventilation of the canyon. 6 7 E.1.33 Removal of Equipment in the Building. For evaluating this step in Alternative 1, B photographs of the canyon eperating-dcck and of a majority of the process cells were reviewed. 9 Based on this review, it is estimated that there are anoroximatelv 5.400 ms (7.000 vds) of 10 contaminated eauinment andcorrmonents ( ¢ross loose volume before size reduction) currentlv 11 stered-on the canyQn eck. process cells. and hot pipgtrench. Afterjizc reduction. it is 12 estimated that this volume will be reduced to t#terettre approximately 4,100 m(5,300 yd) of 13 equipment and components (gross loose volume) on the canyon epeFatingdeck, process cells, 14 galleries, andleF hot pipe trench. It is assumed that the size-reduced volume of al}+sueh 15 equipment would be placed in containers and hauled to ERDF for disposal, and none would be 16 salvaged for reuse or recycle. 17 1 B All of the equipment and materials stered in the canyon must be removed. Work would start 19 with the equipment on the canyon eperatingdeck followed by equipment removal from the 20 process cells and the hot pipe trench. Due to the large size of the equipment, it would require ^11 some level of size reduction for disposal. After all of the equipment is removed from the 22 canyon, equipment in the galleries would be addressed. 23 24 ^ The canyon eperating-deck must be cleared of equipment steped-on top of the process cells prior 25 to opening the cells. Early removal of equipment from the deck may be necessary to reduce the 26 radiation dose. Additionally, early removal of this equipment would provide space for other 27 work activities. The canyon would be used as a packaging facility, to prepare material for 28 transportation. 29 30 ^ Equipment from the k-sanyon deck would be reduced in size and volume as 31 necessary for it to fit into modular (sea-land type) containers. This would require a disposition 32 plan for each equipment item. If breaking or cutting activities are necessary for disposing of the 33 equipment, the canyon would be the best place to do these activities because it is a closed facility 34 for controlling contamination spread. During final design, size-reduction technologies and other 35 newer technologies would be evaluated for use. For this final feasibility study report, the use of 36 conventional size-reduction technologies is assumed. 37 38 Equipment would be double wrapped as packaging ready for loading into the container. The 39 container loading would occur inside the canyon. The equipment currently on the sanyon 40 operetingdeekcanyon deck would be removed through the railway tunnel using a truck that 41 would access the tunnel through a new truck door. The truck door would be installed after the 42 railroad tunnel was completely removed. ('t3 44 An equipment disassembly and decontamination enclosure, if necessary, would be installed on 45 the canyon dcek at the northeast end of the 221-U Facility. The enclosure Final Feasibiliry Sradyjor the Can)hau Dirpotirlou lafrlatlve (221 •U Facility) Junc'7003 E-8
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AR TARGET SHEET The following docum
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(^N r^ r Proposed Plan for the Cany
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(^N (0-^, (^N 1 2 3 r• • .`•
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^ (^N t^ the steHitFths+amedielaeti
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o"N DOF/RIr2001-29 Draft D Redline/
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(^N i0,"% / ' DOF/RL-2001-29 Draft
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I f^ ^ DOE!RL-2001-29 Ikaft D Redli
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Page 21 and 22: ! ' t^ Project Prepare the existing
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Page 25 and 26: ^ POINTS OF CONTA CP ^ U.S. Drnartm
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Page 33 and 34: . . .,.. Appendix C - Risk Modeling
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Page 45 and 46: Appendix D- Slope Stability Analysi
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Page 67 and 68: Appendix E - Detailed Description o
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Appendix F - Detailed Description o
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^ (10^' (^N DOF/RL-2001-11 Rev. AjD
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^N r^ 1 n DOF/RLr2061-1 l ' Rev. I
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1 ^ (^N ^ DoFJRL-M-t t ^ Rev. I Dnf
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Appendix G -Detailed Description of
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Appendix G - Detailed Description o
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Appendix G- Detailed Description of
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... ,. Appendix G - Detailed DescrI
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o"^, Appendix G - Detailed Descript
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- •s. t .W ;. . Appendix G - Deta
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.. . .,. .. . Appendix G- Detailed
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Appendix G -Detailed Description of
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^ . , , ,... Appendix G - Detailed
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Appendix G- Detailed Description of
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^• ^ Appendix G - Detailed Descri
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^ ^ t"'^N 1 2 DOElRL-2001-I1 Rev. 9
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t^N (M"N Final Feasibifity Stady ja
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,.r.. . Appendix H - Detailed Descr
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(^\ Appendix H - Detailed Descripti
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Appendix H - Detailed Description o
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Appendix N- Detailed Description of
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Appendix It - Detailed Description
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(^N 5 6 7 8 9 to 11 12 13 14 15 16
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^N i ' (0-1% C Appendix H- Detailed
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Appendix H-Detailed Description of
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f^ ^ DOFJRL-2001-I I Rev. N raft Rc
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f^ ^ 1 2 DOFlRI.-2001-11 Rev. pI af
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I ,.,. , ... . DOFJRI.-2001-11 Appe
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^ DOF/RL-2001-11 I Appendix I - Dec
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DOFJRI.-2001-11 I Appendix I- Decom
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^ DOFlRI.•2001-11 Appendix I -Dec
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^ ("` ^ DOFJRI.2001-11 Rev. G I. Dr
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^ r^, TABLES DOFJRIr2001-11 • Rev
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^ Appendix J- Applicable or Relevan
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t^ ^ Appendix J-Applicable or Relev
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^ Appendia J- Applicable or Relevan
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