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Sedcad Notes: <br />Drill Sites -Gentle Slopes <br />• Soils - Vazious. Conservative estimates for `typical' site versatility used. HSG = D, K = 0.28. <br />Structure #1 <br />CN = 94 Fallow - baze soil. <br />C = 0.05 From SedCAD - Seedings -permanent (2 to 12 months) <br />P = 0.386 From RUSLE 1.06 <br />^ Frequent disturbance <br />Contoured <br />^ Ridge height code = 6 (>6" ridges) from ripping <br />• Furrow grade = I <br />Equivalent slope = 8% <br />Cover/management code: 3 -very rough <br />No strips or concave slopes <br />L = 100 typical <br />S = 8% calculated <br />• Area = 0.5 acres Slightly lazger than typical <br />The grass filter used to reduce the slightly elevated settleable solids is very small and <br />conservatively specified. A filter of 10' X 15' is required to reduce the settleable solids to <br />acceptable levels. <br />Appreciable runoff from these sites is unlikely. The surface roughening practices would result in <br />sufficient surface retention to eliminate runoff. Current models, however, provide no practical <br />quantitative basis to consider the surface retention abilities of such management practices. <br />• <br />