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i <br /> � <br /> e�cc <br /> ( Topper <br /> Project Lot Sheet <br /> Job it 208221 2 <br /> i B JAS 12/5/2008 <br /> I <br /> IBasin C81 100-yr <br /> Runotf <br /> i Ralional Method Calculalions C= 0.801 coefficient <br /> Peak <br /> Rainfall <br /> � 1= 3.111 Intensity <br /> � � A= o.a2ea Drainage Basin (acres) <br /> iStorm Duration= 100 <br /> Calculations <br /> � for I <br /> P= 3.8 <br /> Tc= G.3 Time of Concentration <br /> a�+= 2.61 <br /> Ib�:= 0.63 <br /> I <br /> INotes and Assumplions: <br /> � I From Chapter 3 of the KC Surface <br /> Water Design R9anual <br /> I <br /> t <br /> I <br /> t <br /> I SlormwaterSitePlan QQOO <br /> Everett Community Coilege � <br /> Topper Parking Lot 11 <br /> 208221.10 <br /> � f�l <br />