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dampen the effects of dry and wet years. The recovery from the A pit mining in this area may be <br /> nearly completed. <br /> 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 lower recharge years from affecting the <br /> water level down gradient in the HI aquifer. It is also possible that the backfill spring in Johnson <br /> Gulch 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-I I 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-I I 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 2015 with a small overall rise in 2016 and overall steady levels in 2017 through <br /> 2019 while the levels were steady down gradient in the QR aquifer. The head in well GF-I I is <br /> approximately 19 feet above the head in well GF-6. The water levels in the backfill aquifer may be <br /> near fully recovered from mining. <br /> Figure A-6 also presents the water levels for new wells GLEV-1, GLEV-2 and GLEV-3 <br /> which are located in the northeast corner of the permit and these wells are completed in the R coal, <br /> alluvium and H coal respectively. A gradual decline has been observed in the H coal during the year <br /> at this location with rises early in the year but overall water levels have been steady. Steady water <br /> Trapper Mining Company 2-6 <br /> 2019 Annual Report <br />