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Fall 2017 Subsidence and Geologic Field Observations <br />South of Divide and Dry Fork Mining Areas <br />feet. The maximum dimension of these longer cracks was 1 inch wide and 4 inches deep. One of <br />the smaller cracks (i.e., 3 feet in length) was observed to have a width of 8 inches and depth of 3 <br />feet. Images from this location were unsatisfactory in representation of the observed features and <br />therefore not included in the Spring 2017 Subsidence Report. Observations from our fall 2017 <br />field visit found limited random evidence of the cracks along the access road with considerable <br />weathering and healing evident. <br />Figure 7. Southward view of two sub -parallel differential settlement cracks likely exacerbated by longwall <br />mining that passed beneath this area during the past year <br />4.3.2 Location 3 <br />As Traverse C -C circles to the west and north, the road drops steeply approximately 800 feet south <br />of the MVB E6-14 pad. As the road crosses the mined E -seam Longwall Panel E6 headgate <br />entries, a noticeable step (or elevation drop) in the road was first observed during our spring 2017 <br />field visit in association with a series of semi -parallel subsidence cracks (at least five) over a <br />distance of approximately 50 feet. The most abrupt elevation change measured about 10 inches <br />(Figure 8). <br />831-032.799 Wright Water Engineers, Inc. Page 17 <br />February 2018 <br />