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below its peak in 2001 and 2002. Concentrations in the QR aquifer are monitored downgradient at <br />well GF -6 and have shown no influence from the upgradient mining, except for a very slight overall <br />increasing trend. These small changes are well within natural variations. Figure B-2 also presents <br />the TDS concentrations for QR wells GP -5 and GLEV-1. TDS concentrations in well GP-5were <br />steady in 2015 while a similar concentration was observed in new well GLEV-1. <br />Figure B-3 presents the TDS concentrations for three KLM aquifer wells. The data for <br />well GP -4 is presented in red square on Figure B-3 with steady values in 2015. The concentrations <br />are overall similar to values for the last several years. TDS concentrations for two of the eastern <br />KLM wells, GP -2 and GP -8, are also shown on this figure with concentrations generally between <br />700 and 800 mg/1. Variable TDS concentrations that are overall steady have been observed in these <br />two wells for the last several years. <br />Figures B-4 presents the TDS concentrations versus time for the HI aquifer wells, The TDS <br />in HI aquifer well GF -4 had gradually increased in concentrations with time but has been fairly <br />steady for the last several years. The small changes are well within natural fluctuations in this well <br />but could be due to upgradient mining. TDS concentration in backfill well GF -5 is slightly greater <br />but is still well within the natural range for the HI aquifer. Significantly higher TDS values have <br />been observed in backfill well GF -7 with the concentrations in the last eighteen years being between <br />the lower levels prior to this period and the maximum historical values from this well. TDS values <br />in this backfill aquifer will likely fluctuate until they decline to a value similar to the HI aquifer in <br />this area. <br />Wells GMP -1 and GP -3 are two HI aquifer wells north of the A pit and are shown on Figure <br />B-5. Higher values of TDS were observed in well GMP -1 during 2006 through 2015. This well is <br />immediately downgradient of the reclaimed A pit and is likely showing fluctuations from the <br />Trapper Mining Company 3-2 <br />2015 Annual Report <br />