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Water levels for well GF -4 are presented in Figure A -5. A large rise in water level in well <br />GF -4 was observed in the last half of 1999 after the repair of the casing on September 29, 1999. <br />Water levels overall were fairly similar the last few years in well GF -4. Mining occurred south of <br />well GF-4 in the early 1980's and is expected to limit water -level changes in the HI aquifer near well <br />GF -4. Water levels in the upgradient unconfined backfill aquifer do not fluctuate as much as the <br />confined HI aquifer. The backfill aquifer may prevent the low recharge year from affecting the water <br />level down gradient in the HI aquifer. It is also possible that the backfill spring in Johnson Gulch <br />may be limiting the head in the backfill aquifer. <br />Wells GF -6 and GF -11 are completed in the QR aquifer and QR backfill, respectively. <br />Backfill well GF -11 is located on the downgradient side of the inactive E pit, while well GF -6 is <br />located downgradient of the pit. GF -11 is 1150 feet upslope and upgradient of GF -6. Overall <br />increases in water levels were observed in wells GF -6 and GF -11 for 2008 with similar but smaller <br />seasonal changes observed in 2009 and 2010 (see Figure A -6). Large seasonal changes were <br />observed in 2011 with overall higher water levels. Water levels in the backfill well overall declined <br />in 2012 through 2014 while the levels were steady down gradient in the QR aquifer. The head in <br />well GF -11 is approximately 13 feet above the head in well GF -6. The water levels in the backfill <br />aquifer may be near fully recovered from mining but have been much more variable the last seven <br />years. <br />Figure A -7 presents water levels for GP -7 and GP -8, which are located very near the <br />eastern boundary of the PA. They are completed in the KLM and HI aquifers and may provide <br />undisturbed baseline data for these intervals but could be influenced by mining for the last few years. <br />Water levels in well GP -7 overall have been steady for the last few years with a gradual decline in <br />2014. A slight increase was observed in 2010 and 2011 in well GP -8 after 3 years of steady water <br />levels from 2007 through 2009. Water levels in well GP -8 gradually rose in 2014 and both of these <br />Trapper Mining Company 2 -6 <br />2014 Annual Report <br />