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Spring 2018 Subsidence and Geologic Field Observations <br />South of Divide and Dry Fork Mining Areas <br />4.4.2 Location 2 <br />Several small subsidence cracks with an orientation of approximately S72°W were observed <br />crossing the entire southern portion of the E7-9 MVB pad during our spring 2018 field visit (Figure <br />4). While not large, these cracks are at a location on the pad that does not suggest differential <br />settlement. The maximum dimensions of these non -continuous cracks were 0.75 -inches in width <br />and 2 inches in depth. E -seam overburden at this location is about 1,200 feet. <br />Figure 4. Spring 2018 eastward view of several <br />small subsidence cracks on the southern <br />portion of the MVB E7-9 pad. <br />Also present on the west edge of the pad were four semi -parallel differential settlement cracks <br />spaced about six feet apart and running roughly parallel with the existing surface topography. <br />These cracks had maximum dimensions of 1 inch in width and 4 inches in depth. <br />Lastly, there was a series of cracks running nearly north/south in the northeast corner of the pad <br />that appeared to indicate that a mud pit had previously occupied that area during the drilling of the <br />831-032.900 Wright Water Engineers, Inc. Page 15 <br />August 2018 <br />