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Spring 2016 Subsidence and Geologic Field Observations <br />South of Divide and Dry Fork Mininq Areas <br />I <br />Figure 3. Northward view of a nearly continuous differential settlement crack on the MVB E6-12 pad. <br />Longwall mining had not occurred beneath this area at the time of our spring 2016 field visit. <br />Further west along this traverse, the subsidence crack previously reported near the hairpin curve <br />between MVB E5-12/13 and E5-14 is no longer evident in the road and can only be identified by <br />a highly weathered crack on the cut slope side of the road. Regrading has played a significant part <br />in removing the subsidence crack previously visible in the road. <br />Given that longwall mining had not yet occurred beneath the E6-8/9 through E6-11 MVB pads, <br />visits to these locations were performed to assess the conditions prior to mining. As a result, there <br />were no subsidence features observed in association with these pads. Differential settlement <br />cracks were observed on the north edge of the MVB E6-10 pad in the area of greatest fill (see <br />Figure 4). Another area of cracking was observed along the road east of the MVB E6-10 pad. <br />This location is discussed in more detail below as Location 2. <br />831-032.798 Wright Water Engineers, Inc. Page 14 <br />August 2016 <br />�k = <br />Figure 3. Northward view of a nearly continuous differential settlement crack on the MVB E6-12 pad. <br />Longwall mining had not occurred beneath this area at the time of our spring 2016 field visit. <br />Further west along this traverse, the subsidence crack previously reported near the hairpin curve <br />between MVB E5-12/13 and E5-14 is no longer evident in the road and can only be identified by <br />a highly weathered crack on the cut slope side of the road. Regrading has played a significant part <br />in removing the subsidence crack previously visible in the road. <br />Given that longwall mining had not yet occurred beneath the E6-8/9 through E6-11 MVB pads, <br />visits to these locations were performed to assess the conditions prior to mining. As a result, there <br />were no subsidence features observed in association with these pads. Differential settlement <br />cracks were observed on the north edge of the MVB E6-10 pad in the area of greatest fill (see <br />Figure 4). Another area of cracking was observed along the road east of the MVB E6-10 pad. <br />This location is discussed in more detail below as Location 2. <br />831-032.798 Wright Water Engineers, Inc. Page 14 <br />August 2016 <br />