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were performed in order to identify those horizons which contain <br />potential acid-forming, toxic-forming, or alkalinity-producing <br />materials. As was previously stated, these analyses were performed <br />by Natural Resources Laboratory, Inc., of Golden, Colorado. Table <br />8 shows the breakdown of analysis intervals for the overburden <br />analyses. <br />Each interval was analyzed according to the parameters <br />established by Mr. Roy Cox (CMLRB) which were documented in a <br />letter dated November 20, 1980. Subsequent communications with <br />Mr. Cox (see letter at the end of this Appendix) resulted in the <br />partial modification of this list as it applied to Wyoming Fuel <br />Company. Natural Resources Laboratory, Inc., worked closely with <br />the CMLRB in order to help establish the methodology required for <br />some of the parameters. A list of all overburden parameters <br />included in the analyses is found in Table 9. The analytical <br />• results of the overburden samples tested are listed in Table 10. <br />Table 11 is a brief statistical analysis of the results of some of <br />the more important parameters tested. The following is a summary <br />and discussion of these parameters. <br />pH <br />Values for pH in the two holes range from a low of <br />7.5 to a high of 8.8. All of these values are alkaline and are <br />below the "unsuitable" designation according to Wyoming DEQ <br />Guideline No. 3. The mean value of 8.41 for hole LM1B-4 places <br />it just outside the "good" category into the "fair" category as <br />a suitable topsoil. Hole LM2C-5, with a mean value of 7.81, falls <br />well within the "good" designation. Hence, no alkalinity problems <br />should be encountered with respect to pH. <br /> <br />-36- <br />