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REVISIONS TO EXHIBIT C <br />In order to gain an understanding of the extent of the mining operation, it is helpful to know the acres <br />disturbed by different aspects of the mining operation. Each aspect is listed in the following table with <br />associated disturbed area. The table illustrates a point in time when the mining disturbance will be at its <br />maximum. This occurs during the mining of Cell 4, prior to mining in Cell 5. The mining disturbance <br />will be at its greatest when the southern portion of Ce114 has been mined out and the mining face is <br />nearing the northern portion of the cell. The exterior cell walls along the most southern portion of Ce114 <br />will be backfilled and graded for creation of the groundwater lake. Backfilling will have begun in <br />portions of the cell further north. At this time, Cell 1 and Cell 3 will be backfilled with process fines and <br />excess overburden material, and topsoil grading and seeding will be complete. Partial backfilling of <br />Ce112 will have occurred adjacent to the South Platte River. The backfilled area will be graded and <br />seeded, but additional backfilling will still need to be done in anticipation of creating the final <br />groundwater lake. Portions of Cells 2 and 4 may also be in use as sedimentation basins. <br /> <br />As ect <br />Minin O eration Disturbed Area <br />acres <br />Minin Celll <br />A Backfilled area with potential reseeding, includes completed <br />sedimentation onds 25 <br />Minin Cell2 <br />B Area being backfilled, graded, and seeded, includes 1,700 ft of <br />3H:1 V side slo es for creation of oundwater lake 8 <br />Minin Cell a <br />C Backfilled azea with potential reseeding, includes completed <br />sedimentation onds 12 <br />Minin Cell o <br />D Stri ed overburden and to soil in antici ation of minin 10 <br />E Area being backfilled, graded, and seeded, includes 1,100 ft of <br />3H:1 V side slo es for creation of oundwater lake <br />10 <br />Minin Cell s <br />F Not disturbed 0 <br />General As ects <br />G Roads and conve ors 1.0 <br />H Process lant site, office, and scale house 18.0 <br />TOTAL DISTURBED AREA 84 <br />