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'~i <br />Overburden Analysis <br />Analysis of the strata to be affected by Trinidad Basin <br />Mining was done by Colorado State University Soil Testing Lab <br />on core hole 04. This hole is plotted on the Revised Geologic <br />Map. The results of the tests are included along with the <br />fallowing discussion of each parameter. <br /> <br />The pH values range from 7.5 to 9.2 in the samples front <br />the core hole. Since none of the values are low there appear <br />to be no problems connected with acid materials at the site. <br />EC <br />The EC values range from 0.4 5.~, of which only sample <br />member 10 is above the 4.0 rating established by the Wyoming ~ <br /><, <br />Guidelines as good for soil use. .Thus sample 010 overburden <br />material will be buried deep within the fill and should not lead <br />to any other problems. <br />Total Combustible Solids <br />Excluding the coal beds to. be removed (Sample 04,17,19) the <br />only problem foreseen is sample 010 which contains coal lenses. <br />However due to the position of the material it will be buried in <br />the fill and thus not problematic. <br /> <br />159 <br />