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Spring 2017 Subsidence and Geologic Field Observations <br />South of Divide and Dry Fork Mining Areas <br />overlying the active portion of the mine and on documenting baseline conditions in areas that have <br />yet to be mined. For this reason, observations from our spring 2017 field visit were specific to the <br />E -seam Longwall Panels E5 and E6 in the SOD and Dry Fork mining areas. In addition, some <br />observations were made along roads over Longwall Panel E7 for baseline purposes. <br />Readers should note that observations are discussed relative to traverses along segments of drill <br />roads providing access to methane ventilation borehole (MVB) pads. Given the dynamic nature <br />of the mining activities, future naming of the traverses will likely vary from report to report. <br />Efforts will be made, as practical, to keep traverse names the same from report to report. However, <br />the specific nomenclature for these features can always be identified by reference to Map 1 of each <br />report. <br />831-032.799 Wright Water Engineers, Inc. Page 6 <br />August 2017 <br />