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PROJECT: RITEAID #5231 - EVERETT, WA <br /> DRAINAGE BASIN HYDROGRAPH DATA <br /> * Calculations based upon SBUH using Stormshed software <br /> EXISTING CONDITIONS <br /> Event Peak Q (cfs) Peak T (hrs) Hyd Vol (acft) Area (ac) Method Raintype <br /> 6 mo 0.3908 8.00 0.1246 2.0100 SCS TYPE1A <br /> 2 year 0.6624 8.00 0.2177 2.0100 SCS TYPE1A <br /> 10 year 0.9987 8.00 0.3338 2.0100 SCS TYPE1A <br /> 100 year 1.4751 8.00 0.5006 2.0100 SCS TYPE1A <br /> Record Id: EX <br /> Design Method SCS Rainfall type TYPE1A <br /> Hyd Inty 10.00 min Peaking Factor 484.00 <br /> Abstraction Coeff 0.20 <br /> Pervious Area 0.08 ac DCIA 1.93 ac <br /> Pervious CN 90.00 DC CN 98.00 <br /> Pervious TC 5.00 min DC TC 6.00 min <br /> Pervious CN Calc <br /> Description SubArea Sub cn <br /> EX. LANDSCAPE 0.08 ac 90.00 <br /> Pervious Composited CN (AMC 2) 90.00 <br /> Pervious TC Calc <br /> Type Description Length Slope Coeff Misc TT <br /> Fixed EX. LANDSCAPE 5.00 min <br /> Pervious TC 5.00 min <br /> Directly Connected CN Calc <br /> Description SubArea Sub cn <br /> EX. ROOF, PAVING 1.93 ac 98.00 <br /> DC Composited CN (AMC 2) 98.00 <br /> Directly Connected TC Calc <br /> Type Description Length Slope Coeff Misc TT <br /> Fixed PAVING, ROOF 6.00 min <br /> Directly Connected TC 6.00min <br /> Terraforma Design Group, Inc. to <br />