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EXHIBIT L WORST CASE RECLAMATION SCENARIO <br />The worst case reclamation scenario for the Tri County Pit is at the end of mining of Pit 1, when <br />the largest amount of dewatering would be necessary. The steps of reclamation at this point are <br />outline below: <br />Pit 1 Reclamation <br />• Pit 1 dewatering = 110 ac -ft at $60/ac-ft = $6,600 <br />• Pit 1 final backfilling = 2HAV to 3HAV slope for 3000' by 20' at $1.50/CY = $33,333 <br />• Topsoiling of all disturbed areas outside of lakes = 20.47 ac by 12 inches deep at <br />$1.50/CY = $49,537 <br />• Wetland revegetation = 3.60 ac at $1500/ac = $5,400 <br />• Dryland revegetation = 16.87 ac at $800/ac = $13,496 <br />• Facility removal (office trailer, truck scale, etc.)_ $10,000 <br />Table L-1 Reclamation Task and Cost Estimate <br />Activity Description <br />Time Months <br />Cost $ <br />Facility removal from shop area <br />1.0 <br />10,000 <br />Pit 1 dewatering <br />1.0 <br />6,600 <br />Pit 1 final backfilling last 3000' <br />2.0 <br />33,333 <br />Topsoiling of all disturbed areas outside of lake <br />1.0 <br />49,537 <br />Wetland revegetation(seeding,mulching, etc. <br />0.5 <br />5,400 <br />Dryland revegetation (seeding, mulching, etc. <br />1.0 <br />13,496 <br />Totals <br />6.5 <br />$118,366 <br />DRMS Costs 28% x direct costs <br />1.8 <br />$33,142 <br />Total Bond Amount <br />8.3 <br />$151,508 <br />Tri County Pit Sept 2016 L-1 <br />