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TECHNICAL MEMORANDUM <br />To: BiII Lyle <br />Date: January 3, 2004 <br />Page 6 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />1 <br /> <br />LJ <br /> <br /> <br />Table 2 Selected Pre-Mining Ground Water Chemistry (all concentrations in <br />units of mg/L) <br />Date TDS Fluoride Sulfate Manganese Iron <br />87-9 <br />(8,530 amyl) <br />11/15/1987 260 2.2 57 0.053 0.02 <br />1/13/1988 220 1.8 59 0.036 0.01 <br />4/13/1988 140 1.9 52 0.03 0.01 <br />5/19/1988 230 1.9 88 0.019 0.02 <br />6/21/1988 250 2.1 50 0.024 0.01 <br />8/19/1988 220 2.2 54 0.017 0.01 <br />11/1/1988 270 Z 62 0.018 0.01 <br />1/20/1989 340 2 52 O.OI7 0.01 <br />4/11/1989 260 - 56 O.OI4 - <br />5/10/1989 280 - 67 0.02 - <br />7/]3/]989 230 - 54 0.021 - <br />8/8/1989 290 2 56 0.019 0,01 <br />D87-24 <br />(8,480 ams4 <br />11/15/1987 370 2.7 150 0.71 15 <br />4/13/1988 280 2.6 130 0.17 0.02 <br />5/19/1988 270 2.5 120 0.18 0.08 <br />6/21/1988 370 2.8 120 0.14 0.01 <br />8/19/1988 240 2.7 100 0.17 0.01 <br />11/1/1988 270 3.2 65 0.99 1 <br />4/11/1989 210 - 50 0.1 - <br />5/]0/]989 330 2.1 79 0.58 - <br />7/13/]989 430 - ]20 0.68 - <br />8/8/1989 350 - 93 1.8 2.5 <br />1/10/1990 - - 120 5.7 3.5 <br />D87-25 <br />8 419 amsl <br />]1/15/1987 310 2.4 83 0.6 5.1 <br />4/13/1988 200 2.7 89 0.017 <0.01 <br />5/19/1988 180 3.4 96 0.03 0.01 <br />6/21/1988 300 3.1 97 0.029 <0,01 <br />8/19/1988 330 - 93 0.57 8,4 <br />1(/1/]988 420 - ]00 0.74 15 <br />4/11/1989 410 - 110 0.83 - <br />5/10/1989 450 - 100 0.766 - <br />7/13/1989 330 - 98 0.86 - <br />8/8/1989 440 - il0 0.73 - <br />`-"denotes no data reported <br />o:H. ~«~..~ziz-~<»~„~rc,~m~,lv~m~,v.-za»~.wo-.~y.<mm<»<,m;~.~»~~ <br /> <br />