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~~~ ~G~~ <br />rm'vonmrnml rrrcnrins andrn¢mrcn <br /> <br />The soils within these map units were examined for physical and morphologi~~al <br />characteristics at five locations. At the time of the survey, the soils in map unit SA w.'re <br />frozen at most locations and full examination was not possible. <br />Soi! santpli~:g and analysis. Samples of the stockpiled soil material, the undisturbed soils <br />itt map units SA and 7C, and the material on the cut slopes west of the loadout were <br />collected for laboratory analysis. Soils were sampled from pits dug by hand usin€; a <br />shovel and auger. Samples were collected in accordance with soil sampling procedures <br />recommended by the SCS (1972). A detailed profile description was recorded at each <br />undisturbed soil sampling site. All sample site locations were recorded on the field map. <br />One quart of soil material was obtained from each sampled increment. Soil samples were <br />placed in cleaz polyethylene bags, labelled and delivered to Inter-Mountain Laboratories, <br />Inc. in Sheridan, Wyoming for analysis. Parameters and methods are shown in Table 1. <br />Analysis results were transferred electronically precluding transcription ertors. <br />Table I. Laboratory methods for soil analyses. <br />Parameter Method reference • <br />Particle size Gw, G. W. and J. N. Bauder. 1986. Method 15-5, p. 404; sieve analysis <br />distribution for vfs. <br />Texture Soil Survey Staff. 1951. Page 209. <br />pH U.S. Salinity Lab. 1969. Method 21a, p. 102. <br />Organic matter Nelson, D.W. and L.E. Sommers. 1982. Method 29-3.5.3, p. 570. <br />Sodium adsorption U.S. Salinity Lab. 1969. Method 20b, p. 102. <br />ratio <br />Electrical Rhoades. J.D. 1982. Method 10-3.3, p. 167. <br />conductivity <br />Saturation percentage U.S. Salinity Lab. 1969. Method 26 and 27, p. 107. <br />Carbonates U.S. Salinity Lab. 1969. 1.lclhod 25, p. 105. <br />Gypsum Soil Conservation Service. 1972. Mclhod 6F, p. 40 <br />Results <br />The three existing topsoil stockpiles, nine soil sample sites, and twenty-six soil <br />observation sites are shown on Exhibit 9-1, Soil Types, Sample Sites, ar:d Topsoil <br />Stockpiler. 5oi1 data for the soil sample sites is presented in Appendix A. Field notes for <br />the soil observation sites are presented in Appendix B. <br />~.. <br />-2- <br />