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2.0 GROUND-WATER LEVELS <br />Water level or water pressure have been measured in 30 wells at Trapper Mine. Wells GD- <br />2, GF-3, GF-4, GP-3, GP-4, and well 81-03A were flowing wells in 2004 and pressure readings on <br />these wells have been converted to static water head in feet above the measuring point. The water <br />levels 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 />The locations of the monitoring wells are shown on enclosed Maps No. 2-1 through 2-3. <br /> <br />I• <br />Well GD-1(2) is completed in the Twenty Mile Sandstone. Five wells, GE-1, GD-2, GF-6, GP-5, and <br />GP-6 are used to monitor the QR aquifer. Wells GD-3 and GF-11 are completed in backflll derived <br />from the QR aquifer and, therefore, aze also used to rr~nitor the QR aquifer. Wells GP-2, GP-4, and <br />GP-8 are used to monitor the KLM aquifer. Six wells, GC-l, GE-2, GF-4, GP-3, GP-7, and GMP-1 <br />aze used to observe changes in the HI aquifer. Wells GF-5 and GF-7 are completed in bacldill material <br />derived from the HI aquifer and are also used to monitor the HI aquifer. Wells GC-2, GE-3, P-8, <br />81-03A, and GP-9 are used to monitor the 3rd White Sandstone aquifer. Well GE-3 is wmpleted in <br />both the 2nd and 3rd White Sandstone and well P-5 are completed in the 2nd White Sandstone <br />between the G and F coals, while GLiTX-1 is used to monitor the 1st White Sandstone. Well P-3 is <br />perforated in the Lewis Shale. Four alluvial wells, COY, GC-3, P-1 and J-l, aze used to rr~onitor the <br />Flume, Pyeatt, and Johnson alluviums. <br />Trapper Mining Company <br />2004 Annual Report <br />