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Fall 2017 Subsidence and Geologic Field Observations <br />South of Divide and Dry Fork Mining Areas <br />and depth dimensions of 8 inches and 14 inches, respectively (Figure 5). The two other sub - <br />parallel cracks were also intermittent but with smaller width and depth dimensions. <br />Observations of these same features during the fall of 2017 field visit found continued evidence of <br />portions of the subsidence cracks on the pad as well as differential settlement cracks on the east <br />edge of the pad where the greatest fill material had been placed. Comparison photos of the pad <br />(Figures 5 and 6) shows the change between spring and fall 2017. Figure 7 shows the differential <br />settlement cracks on the pad. Observations during our fall 2017 field visit could not relocate the <br />subsidence crack in the road south of the MVB E6-13 pad access road that was previously <br />observed. <br />Figure 5. Southward view (spring 2017) along <br />the west side of the fenced area around the <br />MVB showing portions of the longest <br />subsidence crack (intermittent over 250 feet). <br />Figure 6. Southward view (fall 2017) of the same <br />area, and from the same general location, as <br />shown in Figure 5. <br />Several subsidence cracks were observed during the spring 2017 field visit along the access road <br />immediately after its departure from the main road. The orientation of these cracks was <br />approximately N45°E over a distance of approximately 130 feet with the longest totaling about 20 <br />831-032.799 Wright Water Engineers, Inc. Page 16 <br />February 2018 <br />