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existed prior to 1999. A large decline in water levels started in 1999. A smaller decline occurred in <br />2012 which is likely due to less recharge. <br />Wells GP -3 and GP-4 are less than 1000 feet downgradient from A pit. Both are flowing <br />wells completed in the HI and KLM aquifers, respectively. Water levels in these two wells had <br />shown similar responses in water levels due to changes in precipitation but the 2005 through 2011 <br />water level changes were different (see Figures A -9 and A -10). Water levels in well GP -3 have <br />recovered to above pre -mine levels in this area and show that any depletion of water from upgradient <br />mining has been replaced by recharge to the HI aquifer. The overall gradual declines in water levels <br />in well GP -3 in the years just prior to 2005 are probably a function of below normal precipitation <br />during this period. The water level in well GP-4 has also recovered to pre -mine levels but observed <br />variable levels in 2004 through 2012. The large decline in the fourth quarter is similar to other large <br />declines observed in this well. <br />Well GMP -1 (Figure A -9) is completed in the HI aquifer to monitor ground -water <br />conditions downgradient of the ash disposal site immediately south in A pit. Water levels became <br />steady in 2001 and stayed fairly steady for the next six years with a small increase in 2006 through <br />2011. A very gradual decline was observed in 2012. <br />Figure A -10 also presents water levels for the well COY (alluvium). Water levels at the <br />COY well started to decline in 2009 and 2010 after seven years of overall rising. Overall water <br />levels rose in 2011 but overall declined in 2012. The unconfined alluvial aquifer generally responds <br />gradually to recharge changes. The 2011 and 2012 water -level elevations are slightly lower than the <br />natural high water levels in 1985 and 1986. <br />Well GP -5 is completed in the QR aquifer. GP -5 is immediately downgradient of A pit. <br />Water -level data is tabulated in Table A -1 in Appendix A. Figure A -11 presents the water level <br />versus time plot, showing a rising trend for the previous six years during the period of above normal <br />Trapper Mining Company 2 -7 <br />2012 Annual Report <br />