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State of Colorado <br /> DEPARTMENT OF NATURAL RESOURCES <br /> DIVISION OF RECLAMATION, MINING AND SAFETY <br /> Page 10 of 13 <br /> Task VI1.1-Revegetation <br /> While the majority of the site has been successfully revegetated,some portions remain where seeding was unsuccessful or never <br /> occurred.It is estimated that approximately 4.0 acres of the area disturbed by mining activity will require revegetation(with a 10% <br /> contingency).Areas of the site to be revegetated will be seeded with the approved seed mix that has been used previously,and is <br /> recorded in the Reclamation Plan and Revegetation Guidelines.The seed mix is made up of native species that are able to survive <br /> without supplemental water;therefore,costs for irrigation have not been included in this cost estimate.A hydromulcher will be used to <br /> hydroseed all areas where necessary. <br /> The Location Factor for Colorado Springs has been applied to all RSMeans rates. <br /> A copy of the seed palette price quote is presented in Attachment 2. <br /> Monitoring <br /> Costs to monitor and maintain of the revegetation efforts are addressed in Section IX of this document. <br /> Task Cost Summary <br /> Item Cost <br /> Equipment Cost $ 1,230 <br /> Labor Cost $ 2,493 <br /> Material Costs $ 1,672 <br /> Total Cost: $ 5,395 <br /> Equipment Cost <br /> Activity Equipment Quantity Unit Unit Cost Cost <br /> Hydroseeding JHydromulcher 191.7 MSF $ 7.30 $ 1,399 <br /> Location Factor: 87.9% <br /> Total: $ 1,230 <br /> Source:RS Means Heavy Construction Cost Data: 329219.14-5800-Hydro or air seeding <br /> Labor Cost <br /> Activity I Labor Category Quantity Unit/Hours Unit Cost Cost <br /> Hydroseeding Hydromulcher 191.7 MSF $ 14.80 $ 2,837 <br /> Location Factor: 87.9% <br /> Total: $ 2,493 <br /> Source:RS Means Heavy Construction Cost Data: 329219.14-5800-Hydro or air seeding <br /> Material Costs <br /> Material Description Quantity Unit Unit Cost Cost <br /> Seed Mix Native Seed Mix 4.4 Acres $ 380.00 $ 1,672 <br /> Total: $ 1,672 <br /> Source:2022 Seed Mix Invoice;T-P Enterprises,Inc. <br /> Assumptions and Calculations <br /> Area to Hydroseed <br /> 4.4 Total Area to Reseed(Acres)with 10%Contingency <br /> 43,560 Square Feet/Acre <br /> 191,664 Total Area(Square Feet) <br /> 191.66 Total Area(Thousand Square Feet[MSF]) <br /> Exhibit L-Reclamation Cost Estimate www.sespeconsulting.com <br />