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TABLE <br />Wei <br />hted 13-3L-9 <br />CP Facto <br /> g r <br /> Pond 005 - SYS-2 <br /> <br /> Vegetation Tvpe CP Area (ac.) <br /> Mixed Brush 0.003 15.3 <br /> Sagebrush 0.003 49,7 <br /> Western Wheatgrass 0.006 2,2 <br /> Topsoil Stockpile 0.180 2.5 <br /> Topsoil Removed/Disturbed 0,600 19.8 <br /> Total 89.5 <br /> Yeighted A verage CP )2.538 = 0.140 <br /> 89.5 <br /> TABLE 1 3-3 C-10 <br /> Yeighted CP Factor <br /> Pond 005 - SYS-3 <br /> <br /> Vegetation Tvpe CP Area (acJ <br />• Mixed Brush <br />Sa <br />ebrush 0.003 <br />0 <br />003 T6.5 <br />2 <br />5 <br /> g . . <br /> Western Yheatgrass 0.006 0,8 <br /> Steep Mountain Brush 0.006 0.8 <br /> Haul Road 0.500 77.1 <br /> To[el 37,7 <br /> Weighted Average CP = 5.618 = 0.777 <br /> 31.7 <br />CP x Area <br />0.046 <br />0.149 <br />0.0)3 <br />0.450 <br />11.880 <br />12.538 <br />LP x Area <br />0.050 <br />0.008 <br />0.005 <br />0.005 <br />5.550 <br />5.618 <br />storage CapaC1SV <br />The storage rapacity was also analyzed using the SED CAD computer program. Results of the <br />SEDCAD model show the storm runoff volume from the 10-year, 24-hour precipitation event <br />to be 4,64 ac-f t. The ponding area is designed to store 2.5 ac-ft of sediment. There <br />will be no discharge through the emergency spillway during [he )0-year, 24-hour storm <br />event. In addition, there will be adequate freeboard from the emergency spillway to the <br />top of embankment during the 100-year, 24-hour storm event. Table 13 -3C-11 is a summary of <br />the As-built storage cepac ity. <br />• <br />13-3-11 Revised 08/11/92 <br />