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2.0 GROUND -WATER LEVELS <br />Water level or water pressure has been measured in 26 wells at Trapper Mine in 2017. <br />Wells GD -2, GF -4, GP -3 and GP -4 were flowing wells in 2017 and pressure readings on these wells <br />have been converted to static water head in feet above the measuring point. The water levels are <br />prefixed by a negative sign to indicate a water level above the land surface. Wells GA -1 and GA -2 <br />were destroyed by mining in 1996 (see Hydro -Engineering, L.L.C., 1997 for where these two wells <br />were located) and well GP -1 was destroyed by mining in 2003 (see Hydro -Engineering, LLC 2003). <br />Monitoring of wells GB -1, GB -2, GB -5, GF -1, GF -2 and GF -3 ceased at the end of 2003. Wells <br />81-03A, GE- 1, GE -2, GE -3, GLUX-1 and GP -6 ceased monitoring in mid -2006 after their removal <br />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. Four wells, GD -2, GF -6, GLEV-1 and <br />GP -5 are used to monitor the QR aquifer. Wells GD -3 and GF -11 are completed in backfill derived <br />from the QR aquifer and, therefore, are also used to monitor the QR aquifer. Wells GP -2, GP -4, and <br />GP -8 are used to monitor the KLM aquifer. Six wells, GC -1, GF -4, GLEV-3, GP -3, GP -7, and <br />GMP -1 are used to observe changes in the HI aquifer. Wells GF -5 and GF -7 are completed in <br />backfill material derived from the HI aquifer and are also used to monitor the HI aquifer. Wells GC - <br />2, P-8, and GP -9 are used to monitor the 3rd White Sandstone aquifer. Well P-5 is completed in the <br />2nd White Sandstone between the G and F coals. Well P-3 was perforated in the Lewis Shale and <br />monitoring of this well ceased in late 2016. Five alluvial wells, COY, GC -3, GLEV-2, P-1 and J-1, <br />are used to monitor the Flume, Deacon, Pyeatt, and Johnson alluviums with two of these wells <br />completed in the Flume alluvium. <br />Trapper Mining Company 2-1 <br />2017 Annual Report <br />