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• Dry Mixed Sltrub <br />The Vegetation report does not address cover of This minor community although it is nosed the <br />vegetation is more sparse than the Mixed Shrub community. Assume the eegclalive cover is <br />between 30 and 50"/0. <br />Table 2-2d-Runof(curve numbers for grid and semiarid rangelands <br />Cover Type -Oak-aspen-mountain brush mixture <br />Hydrologic Condition Fair <br />Soil Type -Absarokee C <br />Curve Nurnber 57 <br />Previously Disturbed Area <br />The previously disturbed areas are the light use roads above the silo. These roads have been <br />invaded with oak brush and other underslon_'. The condition of the cover would be considered <br />poor < 30%, <br />Table 2-2d-RunofTcun~e numbers for arid and semiarid rangelands <br />Cover Type -Oak-aspen-mountain brush mixture <br />• Hydrologic Condition Poor <br />Soil Type -Absarokee C <br />Curve Nwnber 74 <br />The previously disturbed area also includes a small amount of the meadon• community which <br />was also assigned a cun•e number of 7d. <br />Disturbed Area <br />The disturbed area is made up of basically three cover types. They are: I) paving; 2) coal pad <br />and facilities and; 3) dirt slopes. The coal pad and facilities are considered to be gravel <br />surfaced. <br />Table 2-2a-Runoff curve numbers for urban areas. <br />Cover Type -Paved <br />Soil Type -Absarokee C <br />Cun'e Number 92 <br />Corer Type -Gravel <br />Soil Type -Absarokee C <br />Curve Number ti7 <br />Cover Type - Dirl <br />Soil T}'pe -Absarokee C <br />Curve Number K7 <br />TR-o ~ <br />TRatt EXH-8 -4 - ~i~~7 <br />