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PVRE Pit 41 <br /> d. Please estimate the volume of overburden that will need to be replaced over the affected area and provide a cost <br /> for this activity. <br /> The topsoil/overburden estimated to be replaced is shown on the revised cost estimate notes. It assumes at <br /> total depth of 17" (1.42 feet). It calculates to a total of 5,534 cubic yards for that area around the perimeter <br /> plus an additional 14 feet of exposed slope. Again,this is based on the expectation of a pond at the end of the <br /> life of the pit. <br /> e. Please revise the estimate for revegetation for the entire 9.9 acre affected area. <br /> We can provide an estimate for revegetation that would include the entire 9.9 acres, but that seems to fly in <br /> the face of facts. Looking at a google earth map of the immediate area(see attached)shows that any <br /> excavation that has occurred in this immediate area has resulted in a pond, The proximity to the South <br /> Platte River and the high water table almost make this a certainty. <br /> Again, assuming the pit's final disposition is a pond, re-vegetation will not be possible for the entire 9.9 acres. <br /> The cost estimate is based on revegetation of that area projected to lie outside the pond. I am also including a <br /> cost estimate showing top soil replacement for 9.9 acres but do not believe that will be the end result. <br /> Rule 6.3.5, Exhibit E-Map <br /> 16)Each map submitted with this exhibit; with the exception of the Mining Plan Map, Reclamation Plan Map and <br /> the Final Contour Map, have two scales depicted on the maps. There are several discrepancies between the two <br /> scales shown on each map. Please revise these maps to only show one scale and please insure the scale is correct <br /> and adequate. <br /> The Exhibit E maps have been revised to indicate the correct scales. <br /> 17)Please revise the Mining Plan and Reclamation Plan map to clarify the post mine slopes to comply with Rule <br /> 3.1.5(7) and Rule 6.3.4(1)(d). <br /> The Mining and Reclamation Plan maps have been revised to show that slopes five feet above to 10 feet below <br /> anticipated water level will be maintained at a slope of 3H:1V. <br /> 18)Please revise the reclamation plan to state the average thickness of topsoil and overburden to be replaced <br /> throughout the affected area. <br /> The reclamation plan is hereby revised to indicate that the topsoil and overburden thickness shall be 14-17 <br /> inches throughout the affected areas above water level. <br /> Rule 6.3.8, Exhibit H—Municipalities Within a Two-mile Radius <br /> 19) Please revise Exhibit H to list the mailing address and telephone number of the governing body for the City of <br /> Sterling. <br /> 5 <br />