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I <br /> I <br /> ���� <br /> � Topper <br /> Project Lot Sheet <br /> Job# 208221 3 <br /> � D JAS 12/5/2008 <br /> IBasin C82 25-yr <br /> Runoff <br /> I Ralional A4elhod Calculalions C= 0.641 coeNicienl <br /> Peak <br /> Rainfall <br /> � 1= 2.453 Intensity <br /> � • � � A= 0.1591 Drainage Basin(acres) <br /> iStorm Duration= 25 <br /> Calculalions <br /> I for I <br /> P= 3.05 <br /> Tc= 6.3 Time of Concenlntion <br /> an= 2.66 <br /> Ib�:= 0.�5 <br /> ! <br /> � Notes and Assumptions: <br /> ( I From Chapter 3 of the KC Surface <br /> Water Design Manual <br /> I <br /> f <br /> ! <br /> I <br /> � Stormwater Site Plan Q Q Q O <br /> Everett Community College . <br /> Topper Parking Lot 12 <br /> 208221.10 <br /> � �7 <br />