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39 <br /> AN NAN DALE <br /> at Creek Wood <br /> Drainage Basin Breakdown <br /> 30-Aug-12 <br /> Given: <br /> 1) Basin consist of Roughly four areas, as noted below: <br /> Site and Immediate Area 47.06 AC <br /> Area North of 140 entering Eastern Stream 11.08 AC <br /> Area entering Western Stream 20.07 AC <br /> Area South of 140 entering Eastern Stream 75.14 AC <br /> Total 153.35 AC <br /> 2) Based on previous calculations, 5.03 acres of impervious are proposed <br /> 3) 5.03 acres represents an increase in impervious of 3.2% <br /> 4) Breakdown of Remaining Basins estimated from ACAD and aerial maps <br /> 5) Based on current soils info, most soils are hydrologic group B with some group <br /> C. Group B used for preliminary calculations <br /> Area Total <br /> Location Impervious Managed OS Wooded Area CN <br /> 98 61 60 <br /> ac ac ac ac <br /> AREA#1: Site and Immediate Area <br /> Site area 5.03 5.78 25.65 36.46 65.40 <br /> Remaining 0 0 10.60 10.60 60.00 <br /> Subtotals 5.03 5.78 36.25 47.06 64.18 <br /> Remaining Basins <br /> NE 140 1.16 2.05 7.87 11.08 64.16 <br /> West 3.49 11.23 5.35 20.07 67.17 <br /> South 50 10 15.14 75.14 85.42 <br /> Subtotals 54.65 23.28 28.36 106.29 79.76 <br /> TOTALS <br /> Totals 59.68 29.06 64.61 153.35 74.98 <br /> of Area 38.92% 18.95% 42.13% <br />