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i ~ <br />EXHIBIT "I" <br />SOILS INFORMATION <br />The following information was determined from "Soil Survey of Chaffee-Lake area, Colorado. United <br />States Department of Agriculture, Soil Conservation Service'. Sheet Number 20, an aerial photo with the <br />land types mapped is attached for reference. <br />The Gravelly Alluvial Land (Gv) is the deposit left from Flooding that is intended to be processed. The <br />Ottrey gravelly loam (OuB) is the soil classification that is to the north, west and south of the effected land <br />and is assumed [o lie underneath the flood-deposited material. This topsoil has been exposed in various <br />areas in the proposed area from previous operations. The Rock Outcrop (Ro) is the soil type from where <br />the riprep will be quarried. The Rockland (RcF) is listed for reference only as it is within the effected land. <br />Elevation ranges from 7840 to 8040 feet. The average annual precipitation is I I to 16 inches, average <br />annual soil tempereture is 46 degrees Fahrenheit, and average soil temperature in summer is 64 degrees <br />Fahrenheit. The frost-free season is 75 [0 100 days. <br />Gtavelly Alluvial Land - Gv: <br />A gently sloping to sloping mapping unit that consists of highly stratified deposits of granitic gravel and <br />sand. It is on fans and tce slopes along the Arkansas River. The fans and slopes are associated mainly with <br />the granitic rock outcrops. There is little Cute soil material. The surface is covered with cobble and gravel <br />in places, and in some areas there are scattered stones. The fans and tce slopes are subject to periodic <br />deposition. There is little or no plant cover. Where plants are present, they are mostly weeds, rebbitbrush, <br />and traces of gress. This land is not suitable for range, because of the sparse, variable plant cover. <br />Rockland -RcF: <br />Rock land, 15 to 60 degree slopes, is a land type [hat occtus along the eastern edge of the survey area from <br />Salida to Riverside. It is associated with rock outcrop. Rock land is 50 to 90 percent outcrops of rock and <br />10 to 50 percent very shallow soils. Shallowness is the most important soil characteristic. The exposed <br />rock consists of Pike's Peak granite with gneiss and schist, Silver Pltune granite with gneiss and schist, <br />tracltyte, perlite and dibase. These are low sediment-producing materials. <br />Access to this land type is limited by the topography. The plant cover is sparse; it is mainly scrubby pinyon <br />pine and such grasses as blue grams, mountain mutely, and Indian ricegrass. <br />Surface runoff is rapid, but the harrrd of erosion is only moderate. The available water capacity is low. <br />The mapping unit is used for watershed, wildlife habitat and very limited grazing. <br />Rock Outcrop - Ro: <br />Rock Outcrop is a steep and very steep land type that occurs throughout the survey area. Bare bedrock <br />makes up 90 percent or more of the mapping unit, and there are many sheer bluffs, crags and talus slides. <br />Lack of roads and rough topography make accessibility difficult. <br />Most of the geological material in this land type is Pike's Peak granite with gneiss and schist, Silver Plume <br />granite with gneiss and schist, trechyte, perlite and dibase. These are very low sediment-producing <br />materials. <br />The plant cover is very sparse. A few pinyon pines and other conifers grow in the crevices and cracks <br />where fan materials and moisture accumulate. Rock outcrop is used for wildlife habitat, recreation and <br />watershed. <br />