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SOILS INFORMATION <br /> under this soil is primarily derived from aeolian sources, so the wind erosion hazard is quite <br /> understandable. <br /> This soil provides excellent sites for building as it does not have any appreciable shrink-swell <br /> characteristics. In some places it is used for rangeland,but its productivity is low and its need for <br /> intensive management is distinctive. <br /> The native vegetation is dominated by western wheatgrass, side-oats grama, and needle and <br /> thread. However, few areas exist that still have the native or potential vegetation. Where range uses <br /> were predominant in the past the vegetation has been interseeded to increase production. Also, even <br /> short-term overgrazing alters the composition. Farming is possible on this soil, but because of its <br /> porosity intensive irrigation is needed and even then it does not produce well. Trees can be grown <br /> near irrigation ditches and water holes, but without a ready supply of water, tree survival is very low, <br /> except for deeply rooted species that have been carefully cultivated. On the whole, uses other than <br /> urban construction, marginal rangeland, or sand mining are simply not cost effective. <br /> TYPICAL PHYSICAL AND CHEMICAL CHARACTERISTICS: <br /> BUILDING SITES: Very few limitations present. <br /> ENGINEERING PROPERTIES: <br /> 0 TO 11 INCHES I I TO 60 INCHES <br /> USDA TEXTURE: LOAMY SAND LOAMY SAND TO SAND <br /> > 3" FRAGMENTS: 0% 0 % <br /> PASSING SIEVE 4: 95 - 100 % 95 - 100 % <br /> PASSING SIEVE 10: 90 - 100 % 80 - 100 % <br /> PASSING SIEVE 40: 40 - 60 % 35 - 60 % <br /> PASSING SIEVE 200: 15 - 30 % 5 - 25 % <br /> EROSION FACTOR (K): 0.10 0.10 <br /> WIND EROS. GROUP: 2 2 <br /> Daniels Sand Pit#2 Amendment (2008) Exhibit I Page 3 of 8 <br />