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:~ <br />January 11, 1994 <br />Page 2 <br />7. Based on monitoring stations over the Northwest Number 1 <br />longwall panel, the angle of draw exceeded 8.8 degrees but <br />was less than 35 degrees. Additional stations will be <br />established over the Nw#2 panel to better define the angle <br />of draw. <br />B. The depth of the coal seam varies from 520-750 feet <br />within the subsidence monitoring area. <br />If you have any questions or require additional information, <br />please contact me, <br />Si rely, <br />~~~ <br />Ronald G. Thompson <br />Senior Mine Engineer <br />