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ID_ Task Name _ <br />1 Expansion of RCC Buttress at Screening Building <br />2 RCC Buttress Anchors <br />3 Stone Columns <br />4 Peizorneters for Monitoring Stone Columns <br />5 Piezometers (Landslide Hydrogeology) <br />6 Inclinometers <br />7 Mfcroeles (Phase 1 & 2A) <br />8 Horizontal Drains <br />9 Horizontal Trenches (Phase 1) <br />10 Pond Lining <br />11 Dewatering Wells <br />12 Rock Buttress at Material Storage Bench <br />13 F -Seam Sump Rehabilitation <br />14 Upper Diversion Ditch <br />15 Hor17orital Trenches above MSB <br />16 Replacement of Inclinometers & Piezometers <br />Figure H7 — - - -- - -- - -- — Time Line of Corrective Measures <br />West Elk Mine Landslide Mitigation <br />- - - -- <br />ar A r Ma Jun199 Jul Au Se Oct Nov Dec_ Jan Feb Mai Apr Ma�Jun'9t98 ul Aug _ _ _ _ _ 1999 __ <br />a��L � _ �g —J Sep T Oct J Nov�ec Jani I Mar Apr L May 1 Jun --T-J-- <br />Ju Au S� T Oct Nov <br />i <br />PCrn➢�Nl ll It L <br />CI ns L3Yennit <br />StcborYExhibrt _. ___. ----- ---- _ -___. _. _. _ -_ _. _. !. ------- <br />Class D Revision <br />_ TyPdSe4- <br />C'I,, ❑ Report O Hyrlro ❑Gem•ml <br />Doc Type: -_ <br />OFlpphcation ((,oal only) El Er ❑ Fi fnii on.ent ❑Inspection <br />Project- Appendix H Task <br />Date_ Mon 7/26/99 Progress <br />Milestone ♦ Rolled Up Task Roiled Up Progress <br />Summary ^ Rolled Up Milestone O <br />Page 1 <br />��fiir� I e �e k fi <br />F� If% <br />j iA•('� (t�Q <br />