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CHEMICAL AND PHYSICAL PROPERTY TESTING: <br />Results of chemical analyses prepared by Colorado State <br />University soil testing lab are relatively self explanatory and will <br />be found in Appendix A of this report. <br />In addition to the chemical testing of those materials sur- <br />rounding the coal seam and the seam itself, we have performed certain <br />physical property .tests on both the roof rock and the coal seam in <br />order to provide some general pre-mining data for use in pillar <br />design and design of roof support. This testing included modulus of <br />rupture testing, unconfined compression testing, and, in some cases, <br />determination of Young's modulus and Poisson's ratio. Results of this <br />testing will be found in Appendix B of this report. <br />You have also requested some consultation regarding the effec- <br />tiveness of rock reinforcement fixtures and/or other means of support <br />or linings in both the portal area and in the mine proper. <br />FIELD INVESTIGATION: <br />Two deep test borings were placed in the vicinity of the entry <br />area for the proposed ne~v mine. These two test borings were labeled <br />Nos. 3 and 4, and penetrated to 99.5 and 59.5 feet, respectively. <br />Test boring locations are approximately as indicated on the map <br />accompanying this report. <br />Test Boring No. 4 was located in the area closest to the portal <br />T: <br />and entry area. This test boring indicated the "E"" seam location <br />at something on the order of 30 feet below ground surface. However, <br />at this particular location, the coal seam itself was not encountered. <br />Instead, a burned zone was observed consisting of an open void with <br />thin zones of ash deposits overlain by heat altered rock. <br />' 1 <br />