Laserfiche WebLink
Table 1 (continued) <br />RRACING <br />Must contain 10 -year <br />runoff volumes without overflowing, <br />otherwise P -Factor <br />= 1.00 <br />Slone ( 1 <br />1 to 2 . . . . . <br />. . . . . . . . . . . . 1.00 <br />0.12 <br />3 to 8 . . . . . <br />. . . . . . . . . . . .1.00 <br />0.10 <br />9 to 12 . . . . <br />. . . . . . . . . . . . 1.00 <br />0.12 <br />13 to 16 . . . . <br />. . . . . . . . . . . . 1.00 <br />0.14 <br />17 to 20 . . . . <br />. . . . . . . . . . . . 1.00 <br />0.16 <br />> 20 . . . . <br />. . . . . . . . . . . . 1.00 <br />0.18 <br />GRASS BUFFER STRIPS TO <br />FILTER SEDIMENT LADEN SHEET FLOWS <br />Strips must be at <br />least 125 feet wide and have a ground <br />cover value of 50% <br />or greater, otherwise P -Factor = <br />1.00. <br />Basin Slone <br />0% to 10% . . . <br />. . . . . . . . . . . .1.00 <br />0.60 <br />10% to 24% . . . <br />. . . . . . . . . . . . 1.00 <br />0.80 <br />NOTE: Use of other C -Factor of P -Factor values reported in this <br />table should be substantiated by documentation <br />0.00 <br />0 10 20 30 40 60 80 70 80 90 <br />ESTABLISHED GRASS GROUND COVER <br />. <br />GROUND COVER REPRE&ENT9 THE PORTION OP <br />TOTAL SOIL 9URFACE AREA OCCUPIED ffY <br />GRAB$ WHEN VIEWED PROM ABOVE <br />Figure 9: C -Factors for Established Grass (from HDI, Jan, 1991). <br />