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generated. No mining activity took place in the vicinity of station 14 during 2002. <br />The December 2004 survey results show an elevation loss of 0.05 feet when <br />compared to the November 2001 elevation. <br />Station 15 Station 15 was established for the 1991 surveying year. Station 15 overlies <br />approximately 700 feet of overburden and is located within the 600 - 800 foot <br />overburden depth Stevens Gulch alluvium protective buffer zone. Panel B was <br />retreat mined with partial floor extraction during May, 1492 in the immediate <br />vicinity of station 15. The December 2004 survey results show an elevation gain <br />of 0.01 feet when compared to the November 2001 elevation. <br />Station 16 Station 16 overlies approximately 950 feet of overburden. Surveys at station 16 <br />were initiated in August, 1982 and continued biannually through 1984. Annual <br />surveys occurred in 1992 - 1944. The 1st North - 3 West panel adjacent to and <br />east of station 16 was retreat mined in October 1981. Panel A, located beneath <br />station 16 was retreat mined in July and August, 1991. The August 2004 survey <br />data indicates a 0.08 ft. elevation gain at this site when compared to readings <br />taken in November 2001. Station 16 is located within a mapped landslide azea as <br />well and some minor coordinate variability has been recorded. <br />Station DH55 Drill hole 55 is located over Panel Z with approximately 1750 feet of cover. <br />Panel Z was retreated mined in the vicinity of DH 55 in July 1994. The collar <br />elevation of DH 55 was originally established in 1981 at 8578.57 feet. The <br />monitoring point established at this site was surveyed in January 1994 at elevation <br />8543.11 (-35.46 feet). An apparent error in survey elevation data exists for this <br />site. The October 1994 survey indicates a minor (0.07 foot) gain in elevation <br />compared to the January 1994 survey. The August 2004 survey indicates a loss of <br />0.03 feet when compazed to the November 2001 elevation. <br />Station DH65 Drill hole 65 is located over the I East Main in the west thick coal pod with <br />approximately 1380 feet of cover. In May 1994 the I East Mains were advanced <br />under DH 65. During 1995 retreat mining occurred both north and south of DH <br />65. The October 1994 survey indicates a minor (0.13 foot) gain in elevation <br />compared to the January 1994 survey. The August 2004 survey performed by <br />Cragg Surveying shows a loss of 0.14 feet in elevation when compared to the <br />November 2001 elevation. <br />Station DH66 Drill hole 66 is located over Panel ZZ- I North in the west thick coal pod with <br />approximately 1290 feet of cover. Advance mining occurred under DH 66 during <br />May 1995 and retreat mining occurred during July or August 1995. The collaz <br />elevation of DH 66 was originally established in 1982 at 8209.89 feet. The <br />monitoring point established at this site was surveyed in January 1994 at elevation <br />8189.50 (-20.39 feet). An apparent error in survey elevation data exists for this <br />