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Subsidence and Geologic Field Observations <br />Apacho Rocks ono Box Canyon Mining Areas <br />July 12-15.2004 <br />Figure gA. Figure 12 from the 2003 report. <br />f.Ol'aUU^ 8: <br />Spring located near the mouth of a northwest•trending side canyron on the cast side of Ihep <br />Creek, where the overburden depth to the B Scam is about 1,000 feet (Figure 10). This point is <br />Iexuted a distance of approximately 800 feet south of the headgate entries of mined longwall <br />panel 17. <br />The point is likely out of the angle of mining influence (calculated angle of draw equals 22 <br />degrces), because the maximum proj~;ted angle of draw for the West Elk mining area is 20 <br />degrees. <br />The Ilow of the spring, which is located in mud and soil, is similar to that of last year <br />(Figure 10). <br />The springy Ilow is estimated to be about U.t g;il!uns per minute (gpm).:uul is appru~imatel~ <br />the same ~alumc as was ob.crved in ~uli~, <br />Wnght Water Engineers, Ina Pepe 22 <br />