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Fall 2019 Subsidence and Geologic Field Observations <br /> Southern Panels Mining Area <br /> 4i^ <br /> E'er• ," � ���"� `.,; <br /> � r <br /> 1 q <br /> d <br /> fi^ <br /> N <br /> ry <br /> Figure 17. Eastward view during the fall 2019 field visit of a relatively continuous <br /> differential settlement crack along the south side of the road connecting the MVB <br /> E8-3 pad with the MVB E8-4 pad. <br /> 4.6.2 Location 8 <br /> Figure 18 shows the differential settlement cracks first observed on the southwest corner of the <br /> MVB E8-4 pad during our spring 2019 field work. A comparison photo obtained during our fall <br /> 2019 field visit found that some of the cracks had healed while others had expanded. The largest <br /> of the cracks denoted by a black arrow in Figure 19 measuring 45 feet in length with a maximum <br /> width of 6 inches and a maximum depth of 18 inches. The E-seam overburden thickness at this <br /> location is approximately 1,000 feet. <br /> 831-032.910 Wright Water Engineers, Inc. Page 26 <br /> February 2020 <br />