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.~ • • This seed mixture recommendation is based upon adaptation of the selected species to a sandy loam surface texture of the overlying, shaped and graded backfill material. Due to the possibility of varying amounts of subsoil clay or shale material being incorporated into the final backfill material after processing, it is highly recommended that a soil texture determination be performed after final grading but prior to seeding, to determine final growth medium surface texture. The SCS can provide this soil texture determination upon request. Final surface texture <e.g. clayey or loamy) may necessitate minor modifications to the recommended seeding mixture. In addition to the enclosed SCS recommendation for the reclamation seeding mixture, a plan for required tree planting formulated by Fort Carson DEH staff is also enclosed for reference. Any questions regarding the tree planting specifications should be referred to the Fort Carson staff. 5) Seeding should be accomplished using an appropriate grass drill. The drill should be equipped with a satisfactory seed-feeding mechanism, agitator(s), double-disk furrow openers with depth bands, and packer (press) wheels and/or drag chains. If small legume seed is to be drilled, the drill should have an appropriate legume (alfalfa) box with individual calibration capability; this would also hold true for small, scarified grass seed. Distance between drill rows should not exceed 12 inches. Seed may be broadcast in areas which are inaccessible to a grass drill (e.g. steep slopes). If the seed is broadcast, the recommended seeding rates per acre in column (3) on form CO-ECS-S should be doubled. The seed should be uniformly distributed and covered by hand raking or dragging an English (or similar) harrow over the seeded area. Under no conditions should seed be placed deeper than three-quarter (3/4) inch below the soil surface, and preferably no deeper than one-half (1/2) inch. Seeding should not be done when the soi I surface is frozen. 6) Spring planting (March-April) should be satisfactory; late fall planting (after November 1) is also acceptable. If supplemental irrigation is available, the seedbed should be kept moist but not excessively wet while germination and seedling establishment are occurring. Water should be provided sufficient only to keep the plants from experiencing water stress or wilting, so that root systems will develop into deeper soil layers and rely more heavily on natural soil moisture as the growing season progresses. If no water is available to provide limited irrigation at time of seeding and germination, seeding should preferably be done in late fall, with soil and air temperatures cold enough to prevent seed germination, but prior to permanent winter snowfall. Seeds will remain dormant over winter and germinate the following spring using snowmelt moisture.