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T <br />. ~' <br />Table 2 •USLE calculation: Post-mining <br />Variable Trapper's <br />selection Trapper's source Division's comment <br />R 30 SCS map of R factors for Reasonable based on Trapper's <br /> Colorado location on the R factor ma . <br /> Reasonable because soils in bond <br /> release area would have the same <br /> Trapper permit C-81-O10 erodibility as soils in previous bond <br />K 0.25 Appendix Q release area, SL-Ol, where Division <br /> selected a 0.25 value for its USLE <br /> calculation in Memo to SL-01 file <br /> dated 11/23/98. <br /> Reasonable because a 15.7% slope, <br />LS 6.2 SCS LS table; 510 ft., 15.7% 510 feet long accurately represents <br /> reclaimed drains es. <br /> SCS C factor for permanent Reasonable because the selected <br /> pasture, rangeland, idle land, land use matches the actual land use, <br />C 0.049 and grazed woodland - no and mining eliminated the canopy; <br /> canopy, 85% herbaceous cover, reclamation is mostly herbaceous <br /> grass type (Table 1.2-1 of bond plants. <br /> release submittal) <br /> Reasonable. No adjustment for <br />P 1.0 SCS P factor table conservation practices is reasonable <br /> because the final reclaimed ground <br /> surface was smoothed b dra in . <br />Page 2 <br />