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Mr. Frank M. Graham Jr. -2- May 19, 1983 <br /> 3. r+hat is the expected survival rate for the large trees and the primary species will be Russian Olive and Cottonwood, whose survival rate are 80 - 90%. <br /> shrubs which the operator plans to plants Please list the We,rdo try some evergreens, but the losses run auout 50%. .,e do find many Uottonwood <br /> species of trees and shrubs that will be planted and the numbers volunteers with no loss. Our landscaper noes throw in a variety or species that ne eels will <br /> of each species. do well iii the areas of known water table after mining is complete. We also plan to plant <br /> Dogwood and Cinifoils. <br /> 4. Has the operator considered buying a few hundred tree and shrub We.haye tried seedlings and lost all due to weed control measures and the constant management. <br /> seedlings from the Colorado State Forest Service? The cost per <br /> 100 is around $25.00, planting costs are no more than $1.00 per I <br /> plant and with initial watering and limited care, survival would <br /> be at least 50 percent. <br /> 5. The Soil Conservation Service "grass mix" containing 1 grass and We have no problem with additional grasses, but hold down on the buffalo grass. <br /> 1 legume will not provide a diverse, long lasting vegetation <br /> cover as required Dy law. The staff recommends that the Tom¢ <br /> operator provide a grass mix containing at the very least 3 � <br /> species of grass and 1 legume. The use of species native to the <br /> region is emphasized by the doara. <br /> 6. As recommended by the Soil Conservation Service, "Fertilizer O.K. <br /> should be applied immediately prior to planting and mixed with <br /> the soil by harrowing. Fertilizer rates should be oased on a <br /> soil test. However, no less than 40 pounds of nitrogen and 40 <br /> pounds of phosphorous are recommended. <br /> After seeding, the areas should be mulched with 3,U00 to 4,000 pounds We have been successful in the past without using straw, but we might need to consider it here <br /> per acre of straw. The mulch should be crimped into the soil. This particularly on east side. <br /> should afford the seeded area protection from wind erosion." The <br /> staff suggests that the operator follow the S.C.S. fertilizer and <br /> mulch recommendations. <br /> C. Exhibit G - Hydrology <br /> 1. The Colorado Division of 'dater Resources is reviewing this O.K. <br /> portion of the application. A copy of their review will be sent <br /> to the operator as soon as it is available. I <br /> D. Exhibit L - Reclamation Costs <br /> 1. Please provide the caterpillar dozer or scraper model to be used Topsoil will be placed around the perimeter of the pit, thus it will just be pushed over the edge, <br /> for final grading and topsoil placement and the average one way There are no particular pieces of equipment assigned to this work -- whatever is available -- <br /> distance that topsoil will be moved for replacement. or we, may even contract it out. <br /> 2. At 6 trees minimum per acre and 10 shrubs minimum per acre, the I agree. <br /> operator will be planting a minimum of 36 trees and 60 shrubs. <br /> Therefore, (36 trees x $35.00 per tree = $1 ,260.00) tree and <br /> shrub planting costs will total $2,460.00. <br /> 3. Mulch and fertilizer will need to be figured for this site to western is not apposed to amending the cost. <br /> meet the S.C.S. recommendations. Therefore, the staff suggests <br /> that the following costs be included for 6 acres needing <br /> revegetation: <br />