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STOR�4\VATER SI7'G PL:W <br />AUGUS�I':� AV'GODS CONUOAIINIU�15 <br />Rcturn Pcriod Pcak Ratc cfs Volumc(� <br />2 Ycar 0.00 19G <br />lOYcar OA1 �1-1 <br />100 Ycar 0.04 1,1 I i <br />htAY 20, 2003 <br />PAGIi li <br />G\ISTING I3r�SIN 4 <br />This basin has a tributary arca of 0.22 acres in the existing conditions. Thc ground cover <br />has been taken as undisturbed forest. <br />Land Use CN Ama(ac`i <br />TiCCS S'i. BNS�I %� � �2 <br />The flow path for the time of concentration ealculation consists uf the tbllo�� inp;: <br />Shect Plo�v (trees) 120 0.04 ?�. � <br />Total timc of concentration = 37.1 minutcs. <br />Thc cxisting runoff rates arc: <br />Rcturn Period Pc.ik Ratn�cis V� umc ct <br />2 Ycar 0.00 � o <br />I0 Ycar 0.01 43G <br />100 Year 0.04 941 <br />L�ISTING Br�SIN � <br />"Chis basin :�as a tributary area of 0.37 acres in the existing conelitions. "I'hc gru�,��;i co��cr <br />has be��:� t�ke^ a� e:�disturbed lorest. <br />Land Use CN Arca(ac) <br />Trces & Brush 76 0.37 <br />The flow path for the time of concentration calculation consists uf the following: <br />Flow Tvpc Len�!th {�_ S1ol)��__{fl/tt �I'imc min <br />Shcet Flow (trecs) 150 0.0�1 3'-•� <br />Tutal timc of ccncentcation = 323 minutcs. <br />Thc existing runoff rates are: <br />Return Period Peak Rate(efs) Volume(ci) <br />Z Ycar 0.01 274 <br />10 Ycur 0.02 727 <br />100 Ycar 0.07 1,531 <br />Scc Appendix C Yor Sto,-mShcd'�" basin output. <br />J v.Ic:n;onCr:�.g`iwqusia Ymet Sde P'an 0]�O�TOocamems�SSP03-0]"l.oOCDWH/5'(n <br />