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SI OIL�i\VATLR SI"fG PLAV <br />:1UGU5'I'A R'OODS CONDO�I1NIUb4S <br />F_A''ISTING SIT� IIYDROLOGY <br />IYISTING BASIY 1 <br />MAY 20, 2003 <br />PAGL 14 <br />This basin has a Iributary area of 0.35 acres in thc existing condit�on. Thc ground cuvcr <br />has becn taken as undisturbed Y'orest. <br />Land Use CN Area (ac) <br />Trocs & Bnish 76 0.3� <br />Thc t7ow path for thc time of concentra[ion calculation consists of the following: <br />Plow Tvpe Leneth (ft) Slone (R/ft) Time (min) <br />Sheet Flow (trees) 160 0.033 3�4.3 <br />Total timc of concentration = 34.8 minutcs. <br />Thc cxistin� runoff rates arc: <br />Rctum Pcriod Pcak Ratc(cY:s) Volumc(ctl <br />2 Yc�r 0.01 261 <br />10 Ycar 0.02 633 <br />l00 Ycar 0.06 1,494 <br />GYIS'I'ING BAS[N2 <br />This basin has a tributary arca of 2.23 acres in thc cxisting conditions. Thc ground ccn cr <br />has becn !aken as undisturbcd forest. <br />Land Usc CN _Arca(ac� <br />Trecs �. Brush 7C 2.23 <br />"I'hc ilow path for thc time of conccntration calculation consists of ihc li�llo�vin�z: <br />I�low Tvpc Lcneth 1t SI����/It) Timc (min� <br />Sliect Flow (trees) 2S0 0.0G0 -1�.3 <br />Total timc of concentration = 45.3 minutcs. <br />'fhc cxisting runoff ratcs are: <br />Re�um Period Peak Ratc(cfs) Volumcfct� <br />'_' Ycnr 0.03 1,CG0 <br />10 Ycar O.12 -1,-100 <br />100 Year 0.37 9,� � I <br />L\ISTING I3ASIN 3 <br />This brisin h1s a tributary arca of 0?6 acres in tho r�i,tiu�, conditiuns. 'fhc eround covcr <br />has bccn takcn as undisturbed ,`c;•;st. <br />L�md Use CN Arca ac <br />Trces & Brush 76 0?G <br />The ilow path for the time of concentration calculation consists of thc Following: <br />Plow Tvpe Len¢th (tt) Sl�c f't/it Timc min <br />Sheet ; low (trees) 220 Q0� �l0? <br />Total timc of concentration = 40.2 minutcs. <br />The existing runotf ra[es are: <br />J',MornsanCra�gNzgusW 4Voca. Sito PUn OJ-01`-0ccumems155F09-0]] OOC��i/SfRI <br />�S <br />