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EXHIBIT J-1 <br /> The average annual precipitation in most of this area ranges from 6 to 10 inches(150 to 255 millimeters).A small <br /> part of this area receives as much as 24 inches of annual precipitation. <br /> Much of the precipitation occurs as high-intensity, convective thunderstorms during the period July through <br /> September. May and June are usually the drier months. Precipitation is more evenly distributed throughout the year <br /> in the northern part of the MLRA than in the southern part,where there is a significant peak in late summer.The <br /> northern part of the MLRA receives more precipitation as snow during winter than the southern part.The average <br /> annual temperature ranges from 41 to 54 degrees F(5 to 12 degrees C). The freeze-free period averages 170 days <br /> and ranges from 110 to 235 days. <br /> The dominant soil orders in this MLRA are Aridisols and Entisols. Mollisols occur at the higher elevations, <br /> particularly in the northern part of the MLRA.The dominant soil temperature regime is mesic,and the dominant soil <br /> moisture regime is aridic.The soils receiving less than 8 inches(205 millimeters)of precipitation annually have an <br /> aridic soil moisture regime.The soils receiving 8 to 12 inches(205 to 305 millimeters)have an aridic soil moisture <br /> regime that borders on ustic. The soils receiving 12 to 16 inches (305 to 405 millimeters)generally have an ustic soil <br /> moisture regime that borders on aridic.The dominant soil mineralogy is mixed and soils are formed in slope alluvium <br /> or residuum derived from shale or sandstone. Many of the soils are shallow or moderately deep to shale or <br /> sandstone bedrock.The soils at the lower elevations generally have significant amounts of calcium carbonate, <br /> salts, and gypsum. <br /> Ecological site concept <br /> The soils of this site formed mostly in slope alluvium, residuum,and/or colluvium from sandstone and shale. Surface <br /> soils are channery fine sandy loam,gravelly loam extremely channery loam to extremely sandy loam in texture. <br /> Rock fragments may be present on the soil surface and throughout the profile, and can make up a significant <br /> amount of the soil volume.These soils are shallow,well-drained, and have moderate to moderately rapid <br /> permeability. pH is moderately to strongly alkaline. Available water-holding capacity ranges from .5 to 2 inches of <br /> water in the upper 20 inches of soil.The soil moisture regime is mostly ustic aridic and the soil temperature regime <br /> is mesic. Precipitation ranges from 8-12 inches annually. <br /> Associated sites <br /> R034BY212UT Semidesert Loam (Wyoming Big Sagebrush) <br /> Semidesert Loam(Wyoming big sagebrush) <br /> R034BY227UT Semidesert Shallow Loam(Black Sagebrush) <br /> Semidesert Shallow Loam(Black Sagebrush) <br /> R034BY23OUT I Semidesert Shallow Loam(Salina Wildrye) <br /> Semidesert Shallow Loam(Salina wildrye) <br /> Table 1.Dominant plant species <br /> Tree (1)Juniperus osteosperma <br /> Shrub (1)Artemisia nova <br /> Herbaceous (1)Leymus salinus ssp. salinus <br /> Physiographic features <br /> This site occurs on benches, hill slopes, and back slopes. Slopes are mostly 2 to 50 percent. Elevations range from <br /> 4,700 feet on north aspects to 7,000 feet on south aspects. Rock outcrops are often associated with these soils. <br /> Table 2.Representative physiographic features <br /> Landforms (1)Structural bench <br /> (2) Hill <br /> Runoff class Medium to very high <br /> Flooding frequency,None <br />