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Fall 2015 Subsidence and Geologic Field Observations <br />South of Divide and Dry Fork Mining Areas <br />Figure 6. Spring 2014 northward view of long, <br />relatively continuous subsidence cracks located <br />on the east side of the MVB E4-16 pad. The <br />nearly continuous nature of this crack is <br />believed to be the result of a brittle sandstone <br />layer less than one foot below the pad surface. <br />3.12.3 Location 5 <br />6"M � <br />w` _►`+ <br />A <br />Figure 7. Fall 2015 view of the same <br />subsidence cracks from nearly the same <br />vantage point showing apparent widening of the <br />crack due to weathering and collapse of the <br />crack edges. <br />Beginning in spring 2015, several subsidence cracks with an orientation of NO -10°E, generally <br />with an offset separation of between 15 and 25 feet, were observed along this traverse at its <br />southernmost end above mined E -seam Longwall Panel E5. Figure 8 is a photograph of one of <br />these cracks as observed looking in a southwestern direction. This crack location is along the road <br />above the middle of E -seam Longwall Panel E5 approximately 300 feet southwest of the MVB <br />E5-17 pad. E -seam overburden at this location is about 900 feet. <br />831-032.797 Wright Water Engineers, Inc. Page 15 <br />March 2016 <br />