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Spring 2013 Subsidence and Geologic Field Observations <br />South of Divide and Dry Fork Mining Areas (E -Seam) <br />Figure 20. Spring 2013 view looking south of healing subsidence cracks as originally observed <br />during our fall 2012 field visit. Field observations revealed considerable reduction in area crack <br />widths, depths, continuity and edge sharpness. <br />4.14.3 Location 10 <br />Figure 21 is a photograph of the northeastern edge of the MDW E3 -17.5 pad showing subsidence <br />cracks that appear to be exacerbated by differential settlement given their location near the edge <br />of the pad and in the area of the largest fill placement. Some cracks were observed toward the <br />center of the pad and on the cut slope at this location during the fall 2012 field visit. However, the <br />cracks at the edge of the pad were not noted or photographed at that time. The cracks observed <br />during the fall 2012 field visit were nearly imperceptible during our spring 2013 field visit. <br />4.15 Photographic Observation Point 6 <br />This photographic observation location was established during the spring 2013 field visit as a <br />baseline for assessing potential changes to the landscape associated with E -seam longwall mining <br />within and west of the Deer Creek drainage. <br />831 - 032.795 Wright Water Engineers, Inc. Page 30 <br />September 2013 <br />