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0881 N Hwy 285 Monte Vista, CO 81146 \\ September 5, 1986 Mr. John T. Ungefug 117 White Pine Drive Alamos a, CO 81101 Dear Mr. Ungefug: Enclosed is information on the plant community and soils around the existing quarry located in Sec. 19, TLON, R6E, NMPM in Rio Grande County. This site is an active quarry at the present time. The present plant community consists mainly of Indian ricegrass, rabbit brush, sand drop seed and ribes. Other species present include four wing saltbrush, juniper, scarlet globe mallow, sage, blue grams, prickly pear, yucca, and squirrel tail. The following seeding rates and recommendations are made for any disturbed areas where established vegetation is desired. Indian Ricegrass 3 lbs/Ac PLS Western Wheatgrass - Arriba Variety 1.0 lbs/Ac PLS Streambank Wheatgrass - Sodar Variety 1.5 lbs/Ac PLS Sand Dropseed 0.1 lbs/Ac PLS C The above seeding rates are in pounds of pure live seed per acre but apply only if the seed is planted with a drill. If the seed is broadcast, double the seeding rates. The seeding s hould be completed in last fall ,Just prior to fre eze up and snowfall. This will avoid seed loss to spring winds and alloy new seedling to take full advantage of winter moisture. If seeding is to be done in spring, it is recommended that a mulch be considered to increa se su rvival of the new seeding. Soils are very shallow over bedrock in much of this area. While soil depths range from 0 to 16" in many places, the topsoil should be saved and used for any future reclamation work. The topsoil can be spread over the quarry floor or other disturbed areas after tl~e rock has been removed. Side slopes should be no steeper than 3 to 1 and south facing side slopes should be close to 5 to 1 if possible. For addition soils information please see the attached soil suitability and limitation tables. If fertilization is to be used, a one time application of 18-46-0 will be beneficial. The fertilizer should be applied at a rate of 300 pounds per acre. Barnyard manure will also be very beneficial in improving the soil and increasing the water holding capacity of the soil.