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Pamll AmeMneN (Ml-0a/-G'mv NFe <br />CM0000693 <br />CLIMAX MINE RECLAMATION COST ESTIMATE <br />Flnanclal Re.."na Unit Rates <br />Robinson Lake <br />Assumpilons: <br />(1) Clean dosure including removal of all known sources of contamination wig be achieved, thereby rendering the rater stored in the lake to be highly useable <br />(2) Per Habitat, Exhibit E, AM06 application, Robinson Lake reclamation will involve (a) excavagon of remaining sludge, and (b) biosolids application around the edge. <br />(3) Revegetation is covered eisevhere. <br />Tasks: <br />Pre-Excavation Work and Water Management <br />Sediment and Subsoil Removal <br />Finish Work <br />Timing <br />Slimes only - 22% Lawrence 2008, 38% Skanska 2010,10% Habitat 2010.11, balance 2011+ <br />Total Cost <br />$2,637,570 <br /> <br />X of Sw II _ -? Via C sf Ur.it ?Tot.l Eiju i t7Unk '" Co Lll t Tot M t <br />Tre LiArxa EnuIP InILi.,IV I me Farto QI U-1 ?Prrd,ictl n Unr Revd E9uT - Caal Later Tolxl Lah. Cc+t ^Mator ?I? - Ccat ?t? T ICOai_ <br />Pre-Excavagon Work and Water Management $723,070.00 <br />Sediment and Subsoil Removal $1,807,000.00 <br />Finish Wnrk <br />nn <br />TON F n r_ M 'I r a A, -, TA <br />o-. <br />TOTAL COSTS 2,637,570Y <br />Lower Robinson Lake Cleanoul actual costa from 2010 (Skanska) <br />Do not use numbers for Habitat since their numbers are skewed <br />resulting from their slimes failure and higher than typical cosh (vs. Lavxence Constr. Co. In 2008 and Skanska in 2010) <br />Description of Work Most Likely Cost In 12/31110 S <br />Den ral <br />M: bill-fl- $269,000 <br />Environmental - SPCC, Stormwater, & Dust Control $20,000 <br />Clearing and Grubbing $10,000 <br />Haul Roads 530,000 <br />Demobilization 315,000 <br />Subtotal $344,000 <br />Pre-Excavation Work and Water Management <br />Diversion, Devratering and Un-watering $379,070 <br />Subtotal $379,070 <br />Sediment and Subsoil Removal <br />Develop Access into Robinson Lake $15,000 <br />Dev stop Access Into FIII Area $10,000 <br />Excavate and Haul Sediments to Fill Area (300K cy) $5.40 $1,620,000 <br />Excavate, Haul and Place Native Materials (10% over-exc.) $162,000 <br />Subtotal $1,807,000 <br />Finish Work <br />Final Recontouring at Robinson Lake $45,000 <br />Final Recpnlouring at Fill Area $22.500 <br />Regrade and Re-establish Cover on Face of 2-Dam to Pre-existing Condition $40,000 <br />Subtotal 6107,500 <br />Total 62,637,670 <br />Notes: <br />Lawrence Constr. Co. - 4 months in 2008 <br />Slimes excavated: 220,000 cy <br />Skanska - 3 months in 2010 Slimes excavated. 380,000 cy <br />Habitat- 4 months In 2010-2011 Slimes excavated - 100,000 cy max. <br />Erae1 L Feb 2011