Laserfiche WebLink
MINI <br />Requbem ent: Any topsoil that is stockpiled for more than one season OR is not frequently added <br />to will be seeded. <br />DISCUSSION: Although topsoil stockpiling will rarely be needed in [he future for this <br />operation. Protection of the stockpiles that are created is important. Most of the soils removed from this <br />point on will be used very soon or immediately after removal. Any stockpiles will be planted with the <br />following mixture. This planting will be applied to those portions of the stockpile [hat will no longer <br />receive additional soil. Where additional soil is periodically added to the stockpile, no planting is needed <br />as those areas will be in a highly disturbed condition most of the time and any planting would not have <br />sufficient development time to provide protection. Furthermore, stockpile areas that are frequently <br />disturbed [end to have a very rough surface in contrast to stockpile areas that have been undisturbed for <br />some time. The rough surface tends to capture water and reduce wind erosion. <br />Pueblo East -Mixture for Use on Topsoil Stockpiles - (broadcast seeding) <br />S ecies Variet Ibs/acre PLS PLS seeds/s foot <br />Western W heatgrass Arriba 8.0 20.20 <br />Slender W heatgrass San Luis 6.0 21.90 <br />Tall Wheatgrass Jose 10.0 18.14 <br />Alkali Sacaton Salado 0.50 20.18 <br /> TOTALS= 24.50 80.42 <br />Based on NRCS recommendation with modification for temporary growth on stockpiles. <br />STEP 4: Overburden Stripping and Storage <br />Requirement: Overburden will be removed from each area as i[ is opened for mining rather than <br />over the entire area all at once. <br />Requirement: Overburden removed from lands mined shall be used to construct the barrier berms <br />of sediment basins in Phase 1 as well as final blending with wash fines [o complete backfilling. <br />DISCUSSION: The overburden exists not only directly above the gravel but usually <br />immediately above the ground water level. At certain times of the year (late winter) the ground water <br />level may decline to the point where there is some gravel above the ground water, but generally the top of <br />the water table is located at the interface of the overburden and gravel. Thus, material located between [he <br />Pueblo East Pit Amendment 3 (2007) Exhibit D Page 27 of 34 <br />