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Casper Creek Townhouses <br />6/04/93 <br />� <br />88-4555 <br />CRO <br />WETLAND ANALYSIS <br />Basin "C" <br />EXISTING SITE CONDITIONS <br />r a 1.88 acres <br />N Value 83.0 <br />Tlme ot Concentration <br />The existing time of concentration travel path of Basin "C" consists of 125 feet of <br />sheet flow over toiast at 2.0 percent. The time of concentrat�on was calculated <br />within thc cnmputer program "WaterWorks Version 2" to be 35.22 minutes. <br />DEVELOPED SITE CONDITIONS <br />Area 0.79 acres <br />CN Values <br />Impervious Area = 0.45 acres (Rooftops - Buildings 5-8 to wetland) <br />C'Nimpervlou� — 98 <br />Pervious Area = 0.34 acres <br />CNperv�ou� = 87.60 <br />Tfine of Concentratt�r <br />A practicai minimum time of concentration of 10.0 minutes will be used as the <br />developed time ci concentration for Basin "B". This is a conservative assumption. <br />