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Sedcad Notes: <br />Drill Sites with good cover <br />• Soils -Various. Estimates for `typical' site used. HSG = B, K = 0.24. <br />Structure #1 <br />CN = 62 Arid and semiarid rangelands -Herbaceous -mixture of grass, weeds, and low- <br />growing brush, with brush the minor element -good condition. <br />C = 0.012 From RUSLE 1.06 <br />• Time invariant <br />• 5 -desert grassland <br />^ 650 Ib/ac annual production potential -typical number from NRCS. <br />Reclaimed areas are expected to be higher. <br />^ 25% canopy cover -personal experience. <br />^ >70% ground cover <br />^ 0.5 feet average fall height <br />^ Roughness 1.0 inches -mixed grass prairie. <br />^ Mechanical disturbance -yes <br />^ 5 years since last disturbance <br />P = 0.433 From RUSLE 1.06 <br />^ Frequent disturbance <br />• Contoured <br />• Ridge height code = 6 (>6" ridges) from ripping <br />• Furrow grade = 3% <br />• Equivalent slope = 25% <br />^ Cover/management code: 3 -very rough <br />^ No strips or concave slopes <br />L = l40 typical <br />S = 25% some of the steeper sites <br />Area = 0.5 acres Slightly lazger than typical <br /> <br />