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Fall 2013 Subsidence and Geologic Field Observations <br />South of Divide and Dry Fork Mining Areas (E -Seam) <br />Figure 5. Spring 2013 image looking south along <br />the northwestern edge of the MDW E4 -08 pad at <br />two sub - parallel subsidence cracks. These cracks <br />coincide with the greatest fill depth of the pad but <br />do not appear to exhibit the characteristic parallel <br />orientation to the edge of the pad as is expected <br />with differential settlement. <br />Figure 6. Fall 2013 view at the same area as <br />shown in Figure 5. Note how the rightmost crack <br />has widened and deepened. <br />Figure 7 is of the same pad looking north at several other cracks located on the western edge of <br />the pad. Differential settlement of the pad is causing this deepest fill portion of the pad to settle, <br />move downgradient to the west, and pull apart. Field observations found a series of five en echelon <br />cracks on this portion of the pad all in a somewhat arcuate pattern open to the west, suggesting the <br />development of a likely landslide head scarp. Overburden depth at this location is about 1,050 feet <br />above Mined E -seam Longwall Panel E4 (approximately 200 feet south of the projected tailgate <br />entries). <br />831 - 032.795 Wright Water Engineers, Inc. Page 9 <br />January 2014 <br />