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NewFietds <br /> Newmont <br /> VLF/OSA Closure Study <br /> Arequa Gulch VLF Stormwater Diversion Channel <br /> Watershed Characteristics and Lag Time Calculation <br /> 10.8(S + 1)0.7 <br /> tP 1900yO.5 <br /> tP Lag Time (hr.) <br /> I Length to Divide (ft) <br /> y Avg. Watershed Slope (%) <br /> CN Composite Curve Number <br /> S 1000/CN-10 (in.) <br /> la Initial Abstraction (0.2*S) <br /> Input Values <br /> Lag Time and Watershed Characteristics <br /> Watershed Area (mil) I(ft) CN y s tP(hr) tP (min) la (in.) <br /> Northl 0.0575 1,943 71.00 27.9% 4.08 0.13 8.0 0.817 <br /> North2 0.0214 1,995 71.00 33.1% 4.08 0.12 7.5 0.817 <br /> Northeast 0.2401 4,127 71.00 42.2% 4.08 0.20 11.8 0.817 <br /> East 0.0507 3,222 71.00 3L7% 4.08 0.19 11.2 0.817 <br /> Southeast 0.2406 6,186 70.00 36.0% 4.29 0.30 18.2 0.857 <br /> West 0.2262 4,926 1 71.00 1 35.6% 1 4.08 1 0.25 1 14.9 0.817 <br /> SGVLF East1 0.0730 3,600 j 70.30 36.1% 4.22 0.20 11.7 0.845 <br /> SGVLF East2 0.0957 4,407 1 68.20 1 37.8% 1 4.66 0.24 1 14.2 1 0.933 <br />