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0 2.0 GROUND-WATER LEVELS <br />Water level or water pressure have been measured in 24 wells at Trapper Mine in 2008. <br />Wells GD-2, GF-4, GP-3 and GP-4 were flowing wells in 2008 and pressure readings on these <br />wells have been converted to static water head in feet above the measuring point. The water levels <br />are prefixed by a negative sign to indicate a water level above the land surface. Wells GA-1 and <br />GA-2 were destroyed by mining in 1996 (see Hydro-Engineering, L.L.C., 1997 for where these two <br />wells were located) and well GP-1 was destroyed by mining in 2003 (see Hydro-Engineering, LLC <br />2003). Monitoring of wells GB-1, GB-2, GB-5, GF-1, GF-2 and GF-3 ceased at the end of 2003. <br />Wells 81-03A, GE-1, GE-2, GE-3, GLUX-1 and GP-6 ceased monitoring in mid-2006 after their <br />removal from monitoring. <br />The locations of the monitoring wells are shown on enclosed Maps No. 2-1 through 2-3. <br />Well GD-1(2) is completed in the Twenty Mile Sandstone. Three wells, GD-2, GF-6 and GP-5 are <br />used to monitor the QR aquifer. Wells GD-3 and GF-11 are completed in backfill derived from the <br />QR aquifer and, therefore, are also used to monitor the QR aquifer. Wells GP-2, GP4, and GP-8 <br />are used to monitor the KLM aquifer. Five wells, GC-1, GF-4, GP-3, GP-7, and GMP-1 are used to <br />observe changes in the HI aquifer. Wells GF-5 and GF-7 are completed in backfill material derived <br />from the M aquifer and are also used to monitor the Hl aquifer. Wells GC-2, P-8, and GP-9 are <br />used to monitor the 3rd White Sandstone aquifer. Well P-5 is completed in the 2nd White <br />Sandstone between the G and F coals. Well P-3 is perforated in the Lewis Shale. Four alluvial <br />wells, COY, GC-3, P-1 and J-1, are used to monitor the Flume, Pyeatt, and Johnson alluviums. <br />0 <br />Trapper Mining Company 2-1 <br />2008 Annual Report