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Geochemistry of Coal and Burden Materials • The chemistry of the associated roof and floor materials of the "F" coal seams are presented in Exhibit 9, Chemical Analysis of Roof and Floor Materials. RAG EC has not obtained similar samples from the roof and floor of the "F" and "E" coal seams. The roof and floor samples were taken using an underground core rig (Diamec 250 Series) from the No. 5 Mine workings. The locations of the six (6) underground core holes, from which samples have been obtained, have been noted on the Geology Map (Map 7). The six (6) holes used in the analysis were as follows: 86 - 06 86-19 • 85 - 28 • 85 - 19 • 85 - 36 • 85 - 54 RAG EC had originally planned to sample and analyze the waste material that is placed on the waste disposal pi8 (Refer to Exhibit 21, Waste Disposal Site). However, since roof and floor materials have been analyzed from both the "F" and "E" coal seams, this sampling is no longer necessary with the exception of a few SAR valves. The parameters tested are within Wyoming guidelines for overburden suitability. Since it is planned to cover the waste material with a minimum cover of four (4) feet, the waste material will not impair any revegetation efforts. In addition to the chemical analyses, the sulfur forms for be "F" and "E" Coal Seams have been tabulated and are • presented in Table 10, Sulfur Form Analyses for the "F" and "E" Coal Seams. As expected, the majority of the sulfur in the coal is organic and the sulfate sulfur is either immeasurable or insigni£cant It is requested [hat [his information be kept CONFIDENTIAL. Included in Exhibit 8, Supplemental Geologic Information, are geologist's interpretations of representative drill hole logs found in the permit area. The location of the representative drillholes can be found on the Geology Map (Map 7) n U Permit Renewal No. 3 2.04-10 Revised 7/10/00