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• <br />Watershed Analysis Rule 2.06.5(2)(d) <br />Appreciable Brush or Brushes (2 m fall ht.) <br /> 40% Ground Cover 60% Ground Cover <br />Canopy G W AVE G 8 W G W AVE G 8 W <br />25% 0.090 0.14 0.070 0.040 0.085 0.062 <br />50% 0.085 0.13 0.108 0.038 0.081 0.060 <br />APPRECIABLE BRUSH <br />CANOPY PERCENT GROUND COVER <br />40.0 56.7 60.0 <br />25.0 % G 8 W 0.070 0.063 0.062 <br />43.2 % Pre-mined 0.067 <br />50.0 % G & W 0.108 0.068 0.060 <br />• <br />r, <br />ICJ <br />G: Cover at surface is assumed to be grass, grasslike plants, decaying compacted duff, <br />or litter. <br />W: Cover at surface is mostly broadleaf herbaceous plants (as weeds with little lateral root <br />network near the surface, and/or undecayed residue). <br />P =erosion control practice factor <br />This factor represents support practices which slow runoff water and thus reduce the <br />amount of soil it can carry. Neither the pre-mined area or the reclaimed area will have any <br />erosion control practices such as cross slope farming, contouring or stipcropping. <br />Therefore, the erosion control practice factor for both the reclaimed and pre-mined area <br />will be set at 1.0. <br />April 98 <br />4xi <br />7,2-2 8~ RN -03 <br />!f PP~ovEp Iz~rv~49 <br />