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-; <br />,r <br />CP factor 0.005 to Trapper's selected land use, Reasonable based on following three <br />0.07 canopy, and surface comments. <br /> rou hness (see below). <br />Permanent <br />pasture, Reasonable because, of the four CP- <br />rangeland, idle None factor tables in SCS TR-5l, <br />land, and "Permanent Pasture,...." is the most <br />grazed appropriate. <br />woodland <br />No appreciable Reasonabte because reclamation <br /> None currently is herbaceous vegetation <br />canopy with minimal cano <br /> The Division is not concluding on <br /> the reasonableness of a 65% <br /> Reclaimed land surface is reduction for surface roughness. <br />Reduced 65% rougher than pre-mining The selected CP factors of 0.005 to <br />for surface surface because seedbed 0.07 aze reasonable, however, <br />roughness prep. and seeding is because they are greater than 0.003, <br />produced by <br />' performed along the the CP factor indicated by the more <br />Trapper <br />s contour, thick reveg. creates than 94% ground cover on the <br />reclamation tortuous flow paths, and pazcels. (DMG calculates ground <br />methods. stock tanks roughen surface. cover for CP factor as sum of <br /> herbaceous, perennial, and litter as <br /> shown in Table 1.2-2 of this <br /> submittal.) <br /> Slope lengths and magnitudes input <br /> for this subroutine were reasonable <br /> because they matched field data. <br /> The land use description, "Forest <br />Time of concentration None with heavy ground litter" is <br /> reasonable based on page 100 of <br /> SEDCAD 3's manual which <br /> includes "hay meadows" in this <br /> descri tion <br />Table 4 -SEDCAD 4 Parameters: Post-minin -continued <br />Page 6 <br />