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<br /> . C. Fee Basis <br /> 1) Land Use - Land Use for determining surface water management fees <br /> shall be the existing land use at the date of enactment of the Surface <br /> Water Management Ordinance. As land is developed, or redeveloped, the <br /> fees will be recomputed based on the revised land use. <br /> 2) Soils - Soil Conservation Service (SCS) - Type B soils shall be assumed <br /> for determining the curve number runoff index (CN) in the revenue <br /> equation. <br /> 3) Rainfall (P) - A 2" rainfall will be used on the revenue equation. <br /> 4) Runoff Indices (CN) - The runoff indices for the property classificatiDns <br /> are as follow: <br /> Classifications Land Use Utility Factor <br /> 1 Single-Family Residential (1\3 acre lots) 72 <br /> 2 Mixed Low & Medium Density Residential 82 <br /> . 3 Apartments, Industrial Office, <br /> Institutions (churches, schools, <br /> government buildings, hospitals) 88 <br /> 4 Business/Commercial 92 <br /> 5 Undeveloped -- <br /> 6 Parks, Cemeteries, Golf Courses <br /> Arboretum 65 <br /> 7 Parking Lots 98 <br /> 5) Revenue Equation - The revenue equation for computing the runoff <br /> volume (Q) shall be based on the runoff equation in the Soil Conservation <br /> Service (SCS) National Engineering Handbook Section 4/Hydrology. The <br /> equation is as follows: <br /> Q = (P-O.2S)2 where S = (lOOD/CN) - 10 <br /> P + Q,8S and P = 2" <br /> . <br />