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..~ ~' <br />"3. Water walls and aasoaiatad powar• linen •ra owned by thr <br />property owner and are to be removed. Having no effect on <br />the proposal, they do not appear on the pr^e-mining plan map. <br />J4. gpproximately 30X of the site is irrigated and in production <br />of hay, with the r^emainder• in pasture. Une hundred per^cer~t <br />of the hay field and 80X of the pasture are covered by <br />vegetation. Cottonwood trees line the South Platte River <br />fror~taoe and an ancient ox-bow that once cut into the <br />western side of the site. <br />Exhibit_D__ Min.ing_.F?~ar, <br />J1. Average topsoil depth across the site is 6 inches, so an <br /> average depth of topsoil stripped for each mining phase will. <br /> be 6 inches. Adequate ouantities of soil will be salvaged <br /> to allow replacement to a depth of 10 to 12 inches on thEa <br /> pit slopes and 12 to 16 inches at the plant site. <br />J <br />2. At any one time 35 acres will be mined and another SS acres <br /> str^ipped with are average topsoil depth of 6 inches. This <br /> translates to 24,200 C.Y. of topsoil stared at any ore time. <br />~/3. Typical topsoil storage locations will occur alone the lake <br /> edge, as stated iri a note on the Mining Plan. <br />/4. Over•bur•der~ stockpi les wi l l be placed along the edge of the <br /> lake, as stated in a note on the Minino Plan. <br />~~ <br />(\~ ~ 'S. Yes, only on-site aver^bur•den materials will be used to <br /> <br />,c. yC <br />11,, backfill slope areas. /yv}c~ Soot Cu.+.+e~r .. ill b~ JSf~ ~y.,~7~Hlcj s/jc~3T~hb/~•~ <br />6~. One of two methods will be used to create and maintain pit <br /> slopes that are no steeper than 3H:iV for 5 ft. above to 1~Zi <br /> ft. below water line. The first method will be to mine <br /> oravel at the 1s1 slope, ar~d then broken concrete will bc:' <br /> dumped onto this 1s1 slope below the water^ level. The <br /> concrete should imbed itself into the side slope, and this; <br /> irregular sur^face should allow backfill material, unshed <br /> into the lake, to oather along the slope rather than slitlE~ <br /> down towards the lake's center. This method should allow us <br /> to attain 3H:1V slope. If this doesn't work the alternative <br /> will be to mine the lakes at 2Hs1V slopes, and then backfill <br /> to the desired 3H:IV final slopes. <br />f7. No asphalt batch plant will be installed. <br />/6. Fuel materials will be stored out of the floodplain, and a <br />berm will be constructed ar^ound the storage tank at <br />approximately a 50 foot radius. 6hould an accident occur, <br />this would contain the spill. <br />