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February 03, 2004 <br />Bowie No. 1 Mine Subsidence <br />Survey date December 24, 2003 <br />r ~ <br />LJ <br />• <br />r~ <br />L_J <br />The following table shows the relative change in each subsidence station, <br />For the values based on the GPS Survey. <br />From the June 2003 GPS Survey to the December 2003 GPS Survey. <br />PL-1 N 14 24' W 0.12 - 0.03 <br />PL-2 S 56 19' W 0.06 - 0.04 <br />PL-3 S 74° r~~ W 0.05 - 0.05 <br />PLC S 39 37' W 0.04 0.00 <br />PL-5 WEST 0.04 - 0.03 <br />PL-6 S 22 43' W 0.05 + 0.12 <br />PL-7 S 70 21' W 0.03 - 0.06 <br />Sta 6 N 16 30' E 0.06 - 0.09 <br />Sta 14 S 78 32' E 0.07 - 0.09 <br />Sta 15 S 42 31' E 0.02 - 0.08 <br />Sta 16 Not tied this Survey <br />Changes in the coordinate values from survey to survey may be due to: <br />-Actual changes due to subsidence activity. <br />- Random errors inherent to any field survey. <br />If you have any questions please qll <br />Stephen B. Cragg <br />..a'~~.~•REC~S~ <br />o:' E <br />C~; ;Z'Z' ~ C~ :FO <br />~ ~, 24944 'c, ` ~ <br />o; G7:~ <br />F~J' ~ I ~~,i .=i <br />~0~/,~L L4it'~c-' <br />52-14 <br />