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Historical Data <br />Harvey Gap-Above Mine-pH <br /> pH <br />year Max Min Avg Std <br /> <br />1996 8.2 7.2 7.6 12.9 <br />1997 8.3 7.5 7.9 0.3 <br />1998 8 7 7.6 0.4 <br />1999 8 7 7.6 0.3 <br />Harvey Gap-Below Mine-pH <br /> pH <br />year Max Min Avg Std <br /> <br />1996 8.4 7.2 7.7 0.4 <br />1997 8.4 7.5 7.9 0.3 <br />1998 8 7 7.5 0.4 <br />1999 8 7 7.4 0.4 <br />Seep-pH <br /> H <br />ear Max Min Av Std <br /> <br />1996 8.4 7.2 7.7 0.4 <br />1997 8 7.5 7.8 02 <br />1998 8 7 7.6 0.4 <br />1999 8 7 7.5 0.3 <br />Harvey Gap-Above Mine-Conductivity <br /> Conductivit <br /> Max Min Av Std <br /> <br />1996 754 476 580 95.5 <br />1997 637 473 556 50 <br />1988 724 434 559 89 <br />1999 740 507 571 69 <br />13 <br />