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description of predicted subsidence phenomenon. <br />The angle of draw in the permit area was predicted by RMG and measured by EFCI. <br />The angle of draw range predicted by RMG in 1983 was 20 to 25 degrees. The <br />apparent angle of draw measured by EFCI varies between 19 and 29 degrees and <br />compares favorably with original RMG predictions. The apparent angle of draw is based on <br />observed subsidence, as measured by EFCI, ranging between 0.03 and 3.21 feet. RMG <br />predicted the angle of draw based on probable subsidence ranging from 1.46 feet to 5.85 feet <br />and a projected worst case vertical subsidence range of 2.60 to 4.36 feet. <br />The location of proposed mine workings and the areal extent of affected surface areas as <br />defined by a predicted maximum angle of draw 29 degrees has been illustrated on the <br />Mine Plan Map, (Map 17). The extent of disturbance was based on mine production for a <br />maximum angle of draw of 29 degrees. <br />2.05.6 -66a Revised: 8/2014 RN -06 <br />