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cause tension crack development at the surface, particularly where the underlying <br /> bedrock is shallow. However, as mentioned previously, in this steeply sloping <br /> environment we would anticipate the inpact of these tension cracks to be <br /> tem4orarY- <br /> 5.0 CON= JSICNS <br /> the proposed mining in the B seam will produce surface subsidence and, in <br /> the process, will trigger the oaurence of any remaining u WWlete subsidence in <br /> the C seam. The maximum subsidence magnitude will be on the order of 5.4 ft. <br /> occuring over the panels in the northwest portion of the mine plan. This <br /> subsidence will not damage any man-made facilities nor permanently alter surface <br /> or subsurface drainage. subsidence will produce tension cracks at the surface <br /> which will gradually heal over time due to the effects of surface creep, <br /> incipient landslide movement, and sediment transport. we would expect no long <br /> term detrimental impacts from the predicted multiseam subsidence at this site. <br /> 6.0 CIOSORE <br /> In the event that changes in the nature of the primed mine plan, surface <br /> use, etc. are made, the conclusions and recomerdations contained in this report <br /> shall not be considered valid unless the charges are reviewed and conclusions of <br /> this report are modified or verified in writing. This report has been prepared <br /> for Bear Coal Company for application to the Bear Mine No.3 in accordance with <br /> generally accepted engineering principals. No other warranty expressed or <br /> implied is made. <br />