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) <br />~. characteristic of the sampled materials should not be considered a limitation to the proposed use of this <br />~;~ <br />material. <br />t': <br />t`~; Following an analysis of this report, the Colorado Division of Minerals and Geology accepted these <br />w data and interpretations and allowed the proposed use of this material as a refuse cover. <br />"t <br />3.1.3 EFMC Sampling Program (Sampling Program VII) <br />,-; <br />3 <br />~' The seven soil samples submitted to the CSU laboratory as a result of the seventh sampling program <br />[{te, v (Weaver 1994) represented overburden and fill materials similar to those sampled during the Juty, 1994 <br />{s~) program. The results of the laboratory analyses conducted on these samples are summarized in Table 3, <br />below. <br />TABLE 4 <br />SUMMARY OF LABORATORY ANALYSES-EFMC SAMPLING PROGRAM <br />~` ~ <br />~N <br />Range of Range of <br />Parameter Values Parameter Values <br />I`? pH 7.2-7.8 NO3-N (ppm) 1.0-7.0 <br />~~,~y Electrical conductivity (mmhos/cm) 0.6-2.3 P (ppm) 0.5-4.7 <br />~~ Percent organic matter 1.5-13.9 K (ppm) 88.8-172.0 <br />Lime estimate Low Zn (ppm) 0.8-15.9 <br />r,•1 <br />~:~ Texture Sandy clay-sandy clay loam Mn (ppm) 5.1-11.9 <br />Fe (ppm) 13.5-41.0 Cu (ppm) 1.7-4.6 <br />~~ All values, for which suitability parameters have been developed, are classed as "suitable" with <br />respect to topsoil substitute status (Schafer 1979, Sutton et al. 1981, Wyoming Department of <br />Environmental Quality 1989). <br />3 2 July, 1994 Samg~ing Prograrr~fSam~ling Program VIIII <br />The results of the July, 1994 sampling program are summarized in Table 5, below, which depicts the <br />ranges of values for all parameters for which the 60 samples were analyzed. A discussion detailing these <br />results is also provided along with comments pertinent to the topsoil substitute suitability and reclamation <br />pp~~ potential of the materials sampled. It should be noted that there are no suitability guidelines for the <br />~i chemical parameters NO3-N, P, K, Fe, Mn, lime estimate and percent organic matter. The results of the <br />ll~~ analyses for these parameters have been included to demonstrate the characteristics of the sampled <br />r5 <br />8 <br />