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Conducted sufficient <br />post-mining monitoring 2.05.6(6(c)(i))(F) Yes <br />to verify subsidence <br />rediction <br />Accurately predicted 2.05.6(6)(d)(i) Yes In compliance based on <br />subsidence. observations below. <br />There was no imminent <br />or actual material <br />damage or diminution of In compliance based on <br /> <br />use of renewable 2.05.6(6)(d)(i) Yes <br />observations below. <br />resource lands or <br />structures <br /> <br />Item Predicted impact in <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 68" at station <br />Yes <br /> <br />magnitude 457 [Table 1 of MM457 . <br /> Exhibit 4e-3 of <br /> ermit] <br />Horizontal <br />displacement Unspecified. Not reported. N/A <br />ma itude <br /> The 23-degree value probably <br /> is more accurate than the 30- <br /> degree value mentioned in the <br /> Maximum 21 Division's review of the <br /> degrees [page 2 Approximately 23 degrees (based preceding semi-annual <br />d <br />Angle of draw of Exhibit 4e-3 in °n near-zero subsidence at station n <br />subsidence report for 2 half <br /> R444 that is approximately 475 ft. 2001. In that review the <br /> permit <br />application]. outside direct undermining). horizontal distance between <br /> the edge of workings and zero <br /> subsidence should have been <br /> considered to be 475 ft, rather <br /> than 630 ft. <br /> Continued undermining; no <br />Twentymile No off-site impact based on data from <br /> <br />Sandstone <br />impacts <br />monitoring wells (in annual yes. <br /> h drolo re orls . <br />UP Railroad Grade changes (p. Grade changes as predicted. <br />track 2.05-181.6 of Track was successfully re- Yes. <br /> ermit) leveled. <br />Yampa Valley <br />Electric None. None. <br />Association <br />owerline <br />2 <br />