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Rindahl & The previous operator removed a majority of the topsoil from the permit area. Because the permit area occurs in a mapping unit of Blakeland loamy sand that has considerable wind deflation, it is highly likely that the "topsoil" was already gone due to wind erosion. The Soil Survey of E1 Paso County Area, Colorado, soil map, Sheet No. 9, indicates two major areas of wind deflation. Additional photo interpretation and field investigation indicate an extensive area of wind deflation (about 15 AC> has occurred. Most likely the topsoil did not exist prior to the previous operator disturbing the area. The "stripped" 20 acres of topsoil was not stockpiled. Its history is not known. Your calculations are correct but this material does not exist. However, due to the nature of the soil on site enough material of a loamy sand texture should 6e available to cover the deflated area 4 to B inches deep. With soil analysis, mulching (crimped), and amendments as necessary, it is felt reclama- tion will be successful. Topsoil remaining on the non-deflated non-disturbed areas will be stockpiled. Topsoil or loamy sand (which is the texture of the original topsoil) removed in subsequent operations will be used to reclaim previously disturbed areas, Loamy sand and topsail will be mixed as most physi- cal and chemical parameters are expected to be similar except for original matter. 2. 'The area (~rnpn ~~d for- stncE,pil.ing topsoil is not adegr.tate for F.he amount of topsail calci.tla'ted above. If the area givE!n were totally used (g i.ving a rectangular solid of dimensions L0' „ lei' ,: !30' ) the amount. of topsu> 1 stnr-ed would anl.y he '96 cuh:ic yard.=., of topsoil from the first :>tagc of mining or thc~ 16, 1 ~'~ c::r.tbi.c: yards from the "~U ;acres already stripped. I'lE:•a~;r~ cl.ar~ify the topsoil stor-aye p1,,in:~. If aII of the material you have estimated were available your evaluation would be correct. Generally there will be about 161 cubic yards of material stockpiled from the processing area with another 150 or so cubic yards coming from roads, etc. This combined figure (161 + 150) is close to the 296 cubic yards you have calculated to 6e in the proposed stockpile. The topsoil removal from the mining phases will 6e daisy-chain or over-the-shoulder and therefore as an area is mined topsoil will 6e stripped in advance and replaced on the area 3 Engineering & Envnonmental Services