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Spring 2014 Subsidence and Geologic Field Observations <br />South of Divide and Dry Fork Mining Areas (E -Seam) <br />Thick soil and colluvium derived primarily from the Wasatch Formation is observed along <br />Traverse C -C' with E -seam overburden idepths ranging from 400 to 1,200 feet. The estimated <br />thickness of the surficial material ranges ifrom 75 to 250 feet. <br />Three smaller sub - traverses exist betweon Horse Gulch (Traverse G -G') and Traverse F -F'. The <br />two westernmost sub - traverses were visited during the spring 2014 field visit. The easternmost <br />sub - traverse was within a fenced area containing several horses. Due to concerns about releasing <br />the horses (actively hanging around the, gate area), this area was not visited. Visits to the two <br />westernmost sub - traverses revealed no now subsidence - related features. This was also true for the <br />MDW pads E3 -32.5, E -36, E3 -40, E4 -9 Ond E4 -10 located adjacent to the Dry Fork Road. <br />Observations at a stock pond (USFS Watbr Resources Pond P -62) along the first small sub - traverse <br />east of Horse Gulch and north of the Dty Fork Road found the water level to be similar to that <br />observed in 2012 and 2013. <br />Another of the small sub - traverses along Traverse C -C originates on the north side of the Dry Fork <br />Road approximately 600 feet west of poitlt A'. This small traverse leads to MDW pads E3 -47 and <br />E3 -44. Mining occurred beneath this atea in March 2012. During our spring 2012 field visit, <br />weathered subsidence cracks were observed on the west and south sides of the MDW E3 -47 pad <br />in a nearly north/south orientation. No 4racks were observed on this pad during our spring 2013 <br />or 2014 field visit. Subsidence cracks Were also observed along this small traverse on the south, <br />west and northwest sides of the MDW E5-44 pad during the spring 2012 field visit. Spring 2013 <br />field observations found continued evidence of subsidence cracks along the outside edge of the <br />pad where the greatest amount of fill had been placed. No cracks were observed on this pad during <br />our spring 2014 field visit. Overburden thickness above E -seam Longwall Panel E3 in this area is <br />about 1,100 feet. <br />A small sub - traverse approximately 250 feet east of point A' leads to the MDW E4 -7 and E4 -8 <br />pads. No subsidence - related features were observed on the MDW E4 -7 pad, however subsidence <br />cracks were observed on the MDW E4 -8 pad during the spring 2013 field visit and remained visible <br />during the spring 2014 field visit. Theses cracks are discussed below as Location 1. <br />831 - 032.795 Wright Water Engineers, Inc. Page 10 <br />September 2014 <br />