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Schmidt Development <br />Drainage Study <br />12/20/07 <br />SITE HYDRAULIC ANALYSIS <br />Existing Conditions: <br />Total Site Development Area = <br />Basin = <br />Existing Pervious = <br />Existing ASPH = <br />Roof Buildings <br />Existing Impervious Area = <br />Ll = 193' @ 6.22% <br />Tc = 15.38/7.0 <br />Develoned Conditions <br />0.384 Acres <br />16,720.0 SF = 0.384 Acres <br />9,523.0 SF = 0.219 Acres <br />2,042 SF <br />5,155 SF <br />7,197 SF = 0.165 Acres <br />Proposed New Rooftop = 3,344 SF <br />Proposed Parking = 8,736 SF <br />Proposed Sidewalk = 1,460 SF <br />Total New Impervious = 13.540 SF <br />Proposed Pervious = 3,180 SF = <br />Proposed Impervious Area = 13.540 SF = <br />Net Impervious Increase = 13,540 — 7,197 <br />= 6,343 SF = <br />0.073 Acres <br />0.311 Acres <br />ROW Improvement Area = 5,668 SF <br />ROW Pervious Area = 145 SF <br />ROW Parking Paving = 5,523 SF = <br />t Proposed I ip. Area & ROW Parking = 0.444 Acres <br />Proposed Pervious & ROW Pervious = 0.077 Acres <br />P(6-month) =z 0.99 <br />P2 = 1.5 Tc=7.0 <br />�P10 = 2.2 <br />P100 = 3.2 <br />0.1456 AC <br />0.1301 Acres <br />0.0033 Acres <br />0.1334 Acres <br />4 PRO)ECT.05780 <br />