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• 10. These values are similar to those recommended by Barrett et al. (1980), MDSL (1983), <br />WDEO {1985), USDA (1983), USDI-OSMRE (1985a), Schafer {1979, 1980), and <br />USDI-BLM (1977). <br />11. Proposed by USDI-OSMRE (1985a). <br />12. These values are similar to those recommended by Barrett et al. (1980), MDSL (1983), <br />Schafer (1979, 1980), USDI-OSMRE (1985a), and USDI-BLM (1977). USDA (1979) <br />proposes 12. <br />13. Proposed by USDI-OSMRE (1985a). <br />14. The specific percentage of clay or sand will depend upon clay mineralogy, size of sand <br />fraction, and saturation percentage. Abbreviations include s -sand, M-Cos -medium to <br />coarse sand, s -loamy sand, lays sandy loam, I loam, si -silt, sil -silt loam, sicl -silty clay <br />loam, sic -silty clay, cl -clay loam, sc -sandy clay, c -clay. <br />15. Very similar to recommendations by Schafer (1979, 1980), USDI-OSMRE (1985a), USDA <br />(1983), WDEO (1985), and USDA (1979). <br />16. Similar to USDI-OSMRE (1985a), USDA (1979) proposes greater than 60% clay. <br />17. Recommended by MDSL (1983), WDEO (1985), and USDI-OSMRE (1985a). Schafer <br />(1979, 1980) proposes 8. The lower limit recommended by Barth et al. (1981). <br />18. The actual maximum acceptable molybdenum concentration will depend upon the plant <br />species proposed in the revegetation plan seed mix and their potential for molybdenum <br />accumulation. The depth of replaced topsoil must also be evaluated. <br />19. Reommended by MDSL (1983). Barth et al. (1981) and Sutton et al. (1981) recommend <br />2.0. <br />20. Presented by Peabody (1987} from data extrapolated from Neuman and Munshower <br />(1983). A value of 2 assumes 100% legumes with 2 feet of topsoil while a value of 8 assumes <br />100% grasses with 2 feet of topsoil. An upper limit of 1.0 is proposed by MDSL (1983) and <br />• Revised 27 Aug 2002 27 <br />