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L I • August 30, 2004 Bowie No. 2 Mine Subsidence Survey July 2004 LINE-30 South of Longwall Panels WD-1 and WD-2 STA Date Node # Northing 30-A Nov 2002 1870 20696.49 May 2004/ 2171 20696.39 Ju1y2004~ 2352 20696.39 30-8 Nov 2002 1871 20128.78 May 2004` / 2172 20728.84 July 2004 2353 20128.86 30~ Nov 2002 1872 19743.01 May 2004/ l J 20 4 2173 2 19742.98 19743 04 y u 0 354 . 30-0 Nov 2002 1873 19429.33 May2004f~ 2174 19429.31 July 2004 ~/ 2357 19429.22 Change in position: May 2004 -> July 2004 EasOng Elevation Description 31544.63 7285.59 REBAR+CAP 31544.78 7285.75 31544.70 7285.51 31598.90 7187.31 REBAR+CAP 31598.99 7187.55 31598.96 7187.31 31688.01 7208.60 REBAR+CAP 31688.09 7208.71 31688.11 7208.51 31627.13 7234.04 REBAR+CAP 31627.17 7234.22 31627.14 7234.03 POINT# SURVEY# M 2004 - Ju 2004 BEARING DISTANCE ELEV 30-A 2171 - 2352 WEST 0.08 - 0.24 30-8 2172 -2353 N 67°53' W 0.04 - 0.24 30-C 2173 -2354 N 12°20' E 0.07 - 020 30-0 2174-2357 S 16°07' W 0.09 -0.19 LINE-31 New stations established in November 2003 STA Date Node # Northing 31-A Nov 2003'7 2140 23809.43 July 2004 / 2315 23809.28 31-B Nov 2003` / 2141 23741.08 July 2004 2316 23740.93 31-C Nov 2003`/ 2142 23642.65 July 2004) 2318 23642.47 Fasting Elevation Description 31955.93 8039.94 REBAR~AP 31955.82 8039.89 31941.83 8047.86 REBAR-CAP 31941.74 $047.73 31919.55 8045.61 REBAR-CAP 31919.42 8045.63 Change in position: Nov 2003 -+ July 2004 POINT # SURVEY # Nov 2003 -Jul 2004 BEARING DISTANCE ELEV 31-A 2140 - 2315 S 36°33' W 0.18 - 0.05 31-B 2141-2316 S 30°18' W 0.18 -0.13 31-C 2142 - 2318 S 34°58' W 0.22 + 0.02 S2-20