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Appendix F - Detailed Description of Alternative 3: noFIRL-2001-I1<br />

Entombment with Internal Waste Disposal Rev. A 1 Drafi ti<br />

I<br />

Redlinc/Strikeout<br />

ATTACHMENT Fl - FUNCTIONAL HIERARCIIY<br />

1 F.1.3.2.1 Size and dismantle equipment from canyon floor<br />

2 F. 1.3.2.2 Place canyon eqmt into cells<br />

3 F.1.3.2.3 Fog cell/eqmt with fixative<br />

4 F.1.3.2.4 Grout cells and replace cover blocks<br />

5 F.132.5 Pressure grout cells once cover blocks in place<br />

6 F.1.3.2.6 Remove pipe from Operating Gallery to allow container<br />

7 placement.<br />

8 F.1.3.2.7 Remove the bails from the cc1l cover blocks<br />

9 F.1.3.3 D&D Railroad Tunnel<br />

10 F.I.3.3.1 Remove soil cover from rail tunnel<br />

1I F. 1.3.3.2 Fix contamination on tunnel interior<br />

12 F.1.3.3.3 Demolish rail tunnel. Clear demolition debris to allow truck<br />

13 access to Cell 3.<br />

14 F.13.3.4 Place containerized and other wastes into Cell 3 (rail tunnel)<br />

15 F.1.3.35 Construct concrete wall to close rail tunnel opening in canyon<br />

16 F.1.3.3.6 Grout Cell 3 solid with covers in place<br />

17 F.1.3.3.7 Place demolition debris into tunnel section (inner half)<br />

18 F.1.3.3.8 Fill voids if found in demolition debris w/ flowable grout<br />

19 F.1.3.4 Hot Pipe Trench<br />

20 F.1.3.4.1 Remove Cover blocks<br />

21 F.1.3.4.2 Fog trench/piping with fixative<br />

22 R1..3.4.3 Grout pipe trench full with pipes in place and replace cover<br />

23 blocks<br />

24 F.1.3.4.4 Pressure grout trench once cover blocks in place<br />

25 F.1.3.4.5 Remove the bails from the hot pipe trench cover blocks<br />

26 F.1.3.5 Remove Surface Contamination<br />

27 R.1.3.6 Fix contamination on 22I-U interior surfaces<br />

28 F.1.3.6.1 Building interior (canyon walls, floor & roof)<br />

29 F.I.3.6.2 Inspect and verify<br />

30 F.1.4 Modify external area<br />

31 F.1.4.1 Disposition external aboveground legacy structures and systems within<br />

32 the environmental cap footprint<br />

33 F.1.4.1.1 Disposition 276-U Solvent Recovery Facility<br />

34 F.1.4.1.2 Disposition 271-U office building<br />

35 F.1.4.1.3 Disposition Front and Rear Stairs for 221-U<br />

36 F.1.4.1.4 211-U Tank Fann and 211-UA Tank Farm<br />

37 F.1.4.1.5 Disposition 241-WR Vault'I7torium Storage<br />

38 F.1.4.1.6 Disposition 2714-U Warehouse<br />

r"^\39 F.1.4.1.7 Disposition 275-UR Chemical Storage Warehouse<br />

40 R1.4.1.8 Disposition 200-W-44 Sand Filter<br />

41 F.1.4.1.9 Disposition 291-U Process Unit Plant<br />

Final Feasibillry Study jor thc Canyon Disposition Initlative (221-U Fatility)<br />

J une 2 3 F-30

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