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• not in the angle of draw of the active mine workings. UTE <br />Engineering was unable to survey this point during 1995. <br />During past subsidence monitoring, Ute Engineering found a <br />discrepancy in this point. As a result, a new subsidence point <br />was established. See the report from UTE Engineering behind <br />tab 7 for an explanation of this data. <br />Station 98: Station 98 was newly established in 1993 and is located at the <br />Grosse-Rhode bunkhouse identified as structure 34 on permit <br />No. C-81-038; Map No. 9-7. Advance mining of Panel Y in the <br />vicinity of this location occurred during December 1993 and <br />retreat mining occurred in early 1994. This station overlies <br />approximately 2050 feet of overburden. The monitoring point <br />established at this site was surveyed December 8, 1993 at <br />elevation 8757.50. The October 1994 survey indicates an minor <br />elevation gain of 0.08 feet compared to the December 8, 1993 <br />survey. The June 1995 survey performed by UTE Engineering <br />showed and increase in elevation of 0.84 feet. As a result, a new <br />subsidence point was established. See the report from UTE <br />Engineering behind tab 7 for an explanation of this data. <br />Station 99: Station 99 is located at the Northwest comer of Section 15. The <br />elevation of Station 99 was defined by satellite survey in July <br />1992 at 7921.9 feet. Station 99 was re-surveyed in January <br />1994 and showed a 0.96 foot elevation loss. The June 1995 <br />survey performed by UTE Engineering checked within 0.01 feet <br />of the satellite survey. The 1996 average showed a drop in <br />elevation of 0.30 feet. Based on the UTE survey, station 99 <br />appears to be stable. Cover in the vicinity of station 99 is <br />approximately 1200 feet. Mining has not been performed in the <br />vicinity of station 99. <br />Pitkin Mesa Pipeline Subsidence Monitoring Summary <br />Seven subsidence monitoring stations were established at locations along the Pitkin <br />Mesa Pipeline which overlies Panel C. Panel C development commenced in <br />October with twenty-four crosscuts completed by January 1, 1993. Panel C was <br />mined utilizing a partial extraction design intended to preclude the development of <br /> <br />Page -8- <br />