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Fall 2018 Subsidence and Geologic Field Observations <br /> Southern Panels Mining Areas <br /> 2016 and spring of 2017. These features included a slope failure above the road and pad at MVB <br /> E6-10, a subsidence crack across the road approximately 1,000 feet east of the MVB E6-11 pad, a <br /> small cut bank slump and subsidence cracks approximately 60 feet east of the MVB E6-11 pad, <br /> and a subsidence crack on the MVB E6-11 pad itself. Observations from the fall 2018 field visit <br /> found that these features showed continued evidence of healing. <br /> Fall 2018 visits to the MVB E7-5 through E7-7 pads found no subsidence features and no changes <br /> to the hillside slope failure above the soil storage area southwest of the E7-7 MVB pad. A <br /> reconnaissance visit was also made to areas over the central and western portion of E-seam <br /> Longwall Panel E8 to four MVB well pads which extended this traverse to a new E' location as <br /> shown on Map 1. <br /> 4.6 Traverse F-F <br /> Traverse F-F departs Traverse E-E in a southeasterly direction over the east end of mined E-seam <br /> Longwall Panels E5,E6,and E7. This traverse allows access to reclaimed MVB E5-8 above mined <br /> E-seam Longwall Panel E5, reclaimed MVBs E6-1/2/3 through E6-7 above mined E-seam <br /> Longwall Panel E6, and MVBs E7-1/2, E7-3, and E74 above mined E-seam Longwall Panel E7 <br /> (See Map 1). The E-seam overburden depth along this traverse is between 1,000 feet and 1,200 <br /> feet. <br /> No obvious subsidence-related features were observed during our fall 2018 field visit. Previously <br /> observed differential settlement cracks were again noted on the north side of the E7-3 MVB pad. <br /> Road and pad construction crews were observed working on a road south from the E7-1 MVB pad <br /> onto the eastern end of unmined E-Seam Longwall Panel E8. It appeared from a distance that only <br /> one MVB pad had been built at the time of our field observation. Construction equipment and <br /> muddy conditions prevented pre-mining reconnaissance observations of the road and pad. <br /> 831-032.900 Wright Water Engineers, Inc. Page 21 <br /> April 2019 <br />