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Spring 2017 Subsidence and Geologic Field Observations <br />South of Divide and Dry Fork Mining Areas <br />Figure 6. Southeastward view of a subsidence crack along the access road to the MVB E6-14 pad. <br />This crack has created an elevation drop of approximately 10 inches from south side to the north <br />side. <br />4.3.4 Location 5 <br />Traverse C -C terminates at the MVB E6-14 pad (Location 5). During the spring 2017 field visit, <br />subsidence cracks were observed both on the access road leading onto the pad and on the pad, <br />itself. The crack in the access road was observed to have an orientation of about N20°W. <br />Subsidence cracks on the pad created small graben -like structures where material between the <br />parallel cracks dropped in elevation (Figure 8). One such structure was measured to be 15 inches <br />wide with a depth of 18 inches. The most continuous of the several cracks extended across the <br />pad and the nearby soil stockpile, a distance of about 150 feet (Figure 9). <br />Also of note on the pad were differential settlement cracks on the north edge where the maximum <br />amount of fill had been placed. <br />831-032.799 Wright Water Engineers, Inc. Page 16 <br />August 2017 <br />