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• 2.04.6 <br />Since gypsum is a relatively insoluble material, the acid produced by the <br />oxidation of pyrite would be effectively neutralized. <br /> <br />(3)(a)(iii)(D) <br />• <br />PR-OS <br />The contribution of organic sulfurto acidity is considered negligible since organic <br />sulfur is only slowly oxidized from the organic form to the sulfate form and may <br />be tied up in other organic forms almost immediately. Since no inorganic sulfate <br />exists in these drill hole samples, it too may be disregarded with respect to <br />acidity concerns. <br />Two drill holes from the B-2 Seam were cored and analyzed for forms of sulfur. <br />See Exhibit 6 for a tabulation of the laboratory reports and the locations of the <br />drill holes. The results of the analysis follows: <br />SULFUR FORMS B-2 SEAM <br /> Sulfur Forms (%) <br />Drill Hole Pyritic Organic Sulfate Total <br />BRL-IP-00-66 0.01 0.48 <0.01 0.49 <br />GVB-DH7C 0.06 0.48 <0.01 0.54 <br />The results of the geochemical analyses presented below indicates, by its acid <br />base potential, the B-Seam coal is not acid producing. <br />A chemical analysis of the stratum immediately above and below the D-seam <br />was performed on the core from three drill holes, DH-1516, & 25. See Exhibit <br />6 for a copy on the laboratory reports. <br />The following table presents the results of the geochemical analysis and limits <br />from published guidelines: <br />2-04 - 18 - 7/03 <br />~ PPRou~ <br />Q~zS/a'3 <br />