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<br />Item Predicted impact io <br />ermit a lication <br />Observed impact ~ <br />Prediction accurate. <br /> Maximum 18.4 ft. <br /> in two-seam <br />Vertical mining aeeas. Between 2000 and 2007 visual Although subsidence <br />subsidence Less than l ft. <br />observations aze used for displacements have not been <br />magnitude near panel edges <br />verifying the conceptual surveyed since 1999, visual <br /> in single-seam <br />subsidence model <br />rather than observations described in the <br /> minin areas. , Spring 2007 report indicate <br /> quantitative monitoring. The <br /> <br />Horizontal <br />Maximum <br />Spring 2007 report included a subsidence displacements and <br />displacement horizontal strain pre-mining survey over panel E- the angle of draw have <br />probably not significantly <br />magnitude of 3.9% 1. exceeded the predicted values. <br />Angle of draw 8 - 21 degrees <br /> Rockfalls No rockfalls or cracking found in <br />USFS roads , <br />cracking visual survey for Spring 2007 Yes <br /> report <br /> No draining by subsidence cracks <br />USFS ponds Draining found in visual survey for Spring Yes <br /> 2007 re ort. <br />