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29 <br /> SLIDING SCALE FOR RESIDENTIAL IMPERVIOUS SURFACE RATIOS ' <br /> 7 <br /> Lot Size Impervious Surface Ratio Lot Size Impervious Surface Ratio <br /> (Acres) (%) (Acres) (%) <br /> 6,0 4.50 3.0 9.00 <br /> 5.9 4.65 2.9 9.15 <br /> 5.8 4.80 2.8 9.30 <br /> 5.7 4,95 2.7 9.45 <br /> 5.6 5.10 2.6 9.60 <br /> 5.5 5.25 2.5 9.75 <br /> 5.4 5.40 2.4 9.90 <br /> 5.3 5.55 2.3 10.05 <br /> 5.2 5.70 2,2 10.20 <br /> 5.1 5,85 2.1 10.35 <br /> 5.0 6.00 2.0 10.50 <br /> 4.9 6.15 1.9 10,65 <br /> 4.8 6.30 1.8 10.80 <br /> 4.7 6.45 1.7 10.95 <br /> 4.6 6.60 1.6 11.10 <br /> 4.5 6.75 1.5 11.25 <br /> 4.4 6.90 1.4 11,40 <br /> 4.3 7.05 1.3 11.55 <br /> 4.2 7,20 1.2 11,70 <br /> 4.1 7.35 1.1 11.85 <br /> 4.0 7.50 1.0 12,00 <br /> 3.9 7.65 0.9 12.15 <br /> 3.8 7.80 0.8 12.30 <br /> 3.7 7.95 0.7 12.45 <br /> 3.6 8.10 0.6 12.60 <br /> 3.5 8.25 0.5 or less 12.75 <br /> 3.4 8.40 'The lot area to be used in calculating <br /> impervious surface shall be a minimum of <br /> 3.3 8.55 one acre (43,560 square feet), and shall <br /> include the gross lot area (including road <br /> 3.2 8.70 right-of-way) for lots served by private <br /> roads, and the lot area plus one-half of any <br /> 3.1 8.85 adjacent right-of-way for lots served by <br /> public roads. <br /> 6 <br />