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<br />Item Predicted impact in <br /> <br />ermit a lication <br />Observed impact <br />Prediction accurate? <br /> Maximum 67" of <br />Vertical subsidence at the <br /> <br />subsidence mid-panel station, Maximum of 71.4" at station <br />Yes <br /> <br />magnitude 430 [Table 1 of M430 . <br /> Exhibit 4e-3 of <br /> ermit] <br />Horizontal <br />displacement Unspecified. Not reported. N/A <br />ma nitude <br /> Maximum 21 Approximately 19 degrees, based <br /> degrees [page 2 on near-zero subsidence at station <br />Angle of draw of Exhibit 4e-3 in M419 (next to R419) which is Yes. <br /> permit approximately 350 ft. outside <br /> a lication]. direct longwall undermining). <br /> Continued undermining; no <br />Twentymile No off-site impact based on data from <br />Yes. <br />Sandstone impacts monitoring wells (in annual <br /> h drolog re orts). <br />UP Railroad Grade changes (p. Grade changes as predicted. <br />track 2.05-181.6 of Track was successfully re- Yes. <br /> permit) leveled. <br />Yampa Valley <br />Electric None. None. <br />Association <br />owerline <br /> Report contains premining and <br /> post-mining Fish Creek profiles. <br /> Subsidence magnitude is <br /> consistent with prediction in <br /> Pooling of water Exhibit 4e-3 of permit <br />Fish Creek <br />(Exhibit 7e-2 of application. Pooling appears <br />Yes <br />AVF permit) consistent with pooling prediction <br /> in Exhibit 7e-2. Data in report <br /> from surface water and alluvial <br /> water monitoring sites indicate <br /> subsidence did not degrade water <br /> ualit . <br />Foidel Creek Not undermined during this reporting period <br />Middle Creek <br />Monitoring <br />well <br />006BRDH7 <br />