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f I%wl K, a) ar w ai i/ 0, aj NJ <br /> 1070 Henderson Mine Historic Precipitation <br /> and Snowmelt Based on <br /> Berthoud Summit Snotel Station <br /> Runoff Hydrograph for Snowmelt <br /> (Based on Sinusoldal Hydrograph) <br /> Length of Period= 5 Hours Peak Intensity= 0.96 in1hr <br /> Snowmelt Runoff Increments= 24 Infiltration Rate= 0.09 n/hr <br /> 1.000 4 � Design Daily Depth= 2.4 Inches <br /> Z 800 <br /> p a 4t� 1r ; Basin Runoff <br /> 0.600 - .a �• Basin A-1 Basin A-2 Basin A-3 <br /> 7�E uC Intensity Inc.Depth Nei Runoff Area(Ac) Area(Ac) Area(Ac) <br /> r L t Time Alpha in/hr In/hr 2.14 2.43 3.04 <br /> S 0.200 °"' " ' 1. " y 0 4.712 0.000 0.00 0.0 0.0 0.0 <br /> 0.000 - • •' • +'•' =�' ,+' !• 0.21 4.974 0.016 0.00 0.00 0.0 0.0 0.0 <br /> 0.42 5.236 0.084 0.01 0.00 0.0 0.0 0.0 <br /> 0 1 2 3 4 5 6 0.63 5.498 0.141 0.03 0.05 0.1 0.1 0.2 <br /> Time(hours) 0.83 5.760 0.240 0.05 0.15 0.3 0.4 0.5 <br /> Snowmelt Intensity(in/hr) 1.04 6.021 0.356 0.07 0.27 0.6 0.7 0.8 <br /> Net Runoff(in/hr) 125 6.283 0.480 0.10 0.39 0.8 1.0 1.2 <br /> 1AS 6.545 0.604 0.13 0.51 1.1 1.3 1.6 <br /> 1.67 6.807 0.720 0.15 0.63 1.4 1.5 1.9 <br /> _ 1.88 7.069 0.819 0.17 0.73 1.6 1.6 2.2 <br /> 2.08 7.330 0.896 0.19 0.81 1.7 2.0 2.5 <br /> Snowmelt Runoff 2.29 7.592 0.944 0.20 0.85 1.8 2.1 2.6 <br /> 3.0 2.50 7.854 0.960 0.20 0.87 1.9 2.1 2.7 <br /> ,� _ Pyi vn Yu y;t1.(:y: 2.71 a.116 0.944 0.20 0.85 1.8 2.1 2.6 <br /> 2.5 ., I; v 2.92 8.378 0.896 0.19 0.81 1.7 2.0 2.5 <br /> m 2.0 - '`' , ° 3.13 8.639 0.819 0.17 0.73 1.6 1.8 2.2 <br /> 1:�- • � r '# • 3.33 8.901 0.720 0.15 0.63 1.4 1.5 1.9 <br /> 1.5 '. .: „4 A: F. <br /> t 1.0 3.54 9.163 0.604 0.13 0.51 1.1 1.3 1.6 <br /> 0.5 • ) r '+ r 1'v t { 3.75 9.425 0.480 0.10 0.39 0.8 1.0 1.2 <br /> 0.0 _,r'rt`�„t1•Ji(L`n:1. rii S'r tL' r 396 9.687 0.356 0.07 0.27 0.6 0.7 0.8 <br /> 4.17 9.948 0.240 0.05 0.15 0.3 0.4 0.5 <br /> 0 1 2 3 1 5 6 4.38 10.210 0.141 0.03 0.05 0.1 0.1 0.2 <br /> - Basin A-1 Area(Act 2.14 Bassin A-2 Area(Ac)2.43 4.79 4. 10.734 10. 0.016 0.0 0.01 0.00 0.0 0.0 0.0 <br /> 34 0.00 0.00 0.0 0.0 0.0 <br /> Basin A-3 Area(Ac)3.04 5.00 10.996 0.000 1 0.00 0.00 1 0.0 1 0.0 1 0.0 <br /> Total Precip.->»> 2.400 2.01 2.01 2.01 <br /> Ce- 0.64 <br /> Figure lb <br /> W.W.Wheeler and Assoc.,Inc. <br /> 3/25199 <br />