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Spring 2016 Subsidence and Geologic Field Observations <br />South of Divide and Dry Fork Mininq Areas <br />The portion of this traverse south of Dry Fork currently provides access to three MVB pads above <br />E -seam Longwall Panels E5 and E6 (i.e., E5-15, E5-16, and E6-12). At the time of our spring <br />2016 field visit, longwall mining had occurred beneath E5-15 and E5-16 (see Map 1). <br />As Traverse D -D' continues southward up Poison Gulch, it passes USFS pond P95 where a side <br />access road leads west and then north to the large MVB E5-16 pad. A previously observed slump <br />on the cut slope side of the road leading to this pad remains evident but shows signs of weathering <br />and healing. Subsidence cracks noted on the MVB E5-16 pad also remain present but are difficult <br />to clearly define. <br />Continuing south, Traverse D -D' provides access to the MVB E5-15 and E6-12 pads. No <br />subsidence -related features were observed along the access road to, or on, these pads. Of note was <br />a sizeable differential settlement crack with orientation N5°W on the west edge of the MVB E6- <br />12 pad where the greatest fill material has been placed (Figure 3). This nearly continuous crack <br />was observed from the access road connection to the north end of the pad (a distance of nearly 300 <br />feet). This feature is associated with settlement because longwall mining had not yet passed <br />beneath this area at the time of our spring 2016 field visit. <br />4.5 Traverse E -E' <br />This traverse originates from Traverse A -A' and continues southward to an intersection with <br />Traverse F -F' and then west and south above mined E -seam Longwall Panel E5 and unmined E - <br />seam Longwall Panels E6, E7, and the northern edge of E8 where it terminates at Lick Creek. <br />Traverse F -F' leaves this traverse in a southeasterly direction over the east end of mined E -seam <br />Longwall Panels E5 and E6. This latter traverse is discussed in Section 4.6. Overburden along <br />this traverse varies from about 900 to 1,020 feet. <br />Traverse E -E' allows access to MVBs E5-9/10 through E5-14 above mined E -seam Longwall <br />Panel E5, as well as access to MVBs E6-8/9 through E6-11 (see Map 1) above unmined E -seam <br />Longwall Panel E6. Each of these MVB pads was observed during the spring 2016 field visit. <br />831-032.798 Wright Water Engineers, Inc. Page 13 <br />August 2016 <br />