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USDA Soil Conservation Service <br /> 823 Desert Flower Blvd . <br /> Pueblo, CO 81001 <br /> !November 6, 1990 <br /> This is in reference to an on-site investigation done November <br /> 2, 1990 on a clay mine expansion located in the SW1/4 of the <br /> SE1/4 of Section 30 T22S R67W near Beulah , CO. The following <br /> information may be used to revegetate the site . <br /> The site is not prime farmland. The present use is rangeland . <br /> The owner of the land is J. P. Hanratty . General Refractories <br /> Co. will do the mining and will be responsible for the <br /> reclamation. <br /> Soils information is attached. <br /> The present plant community is dominated by blue grama and a <br /> lesser amount of western wheatgrass. Red threeawn, sand <br /> dropseed , ring muhly , tumblegrass, and japanese brome occur in <br /> trace amounts. Shrubs found on the site are broom snakeweed, <br /> fringed sagebrush , and Gambol oak . A variety of forbs are <br /> found on the site including hairy goldaster, alfileria, plains <br /> pricklypear, aster and buckwheat species . Oneseed juniper and <br /> ponderosa pine also occur on the site. See the attached <br /> inventory for a listing of the vegetation amounts. Present <br /> ground cover is estimated at 25% and total annual production <br /> is estimated at 600-800 pounds per acre air-dry . <br /> The Soil Conservation Service recommends the following steps <br /> to revegetate the site: <br /> 1) At least 6 inches of the top layer of soil should be <br /> removed and stockpiled. <br /> 2) After mining is complete and prior to spreading the <br /> topsoil , the area should be bank sloped so that no slope is <br /> steeper than a 3: 1 slope. Rough areas should be smoothed to <br /> permit easier seeding and mulching. The area should be <br /> scarified to a depth of 6 inches to permit better bonding <br /> between the topsoil and the underlying soil material . After <br /> scarification, the topsoil should be uniformly spread over the <br /> area. <br /> page 1 of 3 <br />