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MountRoyaleVenturesCashMineHydrology AdrianBrown <br />Table 1 - Elevations of Cash Mine Levels <br />Mine Level Depth <br />(ft) Elevation <br />ft amsl <br />1 115 7935 <br />2 152 7898 <br />3 217 7833 <br />4 296 7754 <br />5 360 7690 <br />6 412 7638 <br />7 490 7560 <br />8 589 7461 <br />9 668 7382 <br />(1) ueptn is oeiow snap collar <br />(2) Shaft collar datum is 8050.29 ft amsl <br />(3) Pumping well collar at 8106.84 ft amsl <br />Table 2 - Water Quality <br />Parameter (3) Upgradient <br />Wells (') Cash Mine <br />Pool (2) Tammany Mine <br />Portal (2) <br />Number of Samples 22 1 1 <br />pH 6.8 6.9 6.9 <br />Conductivity, umhos 670 982 1285 <br />Solids, Dissolved (TDS), mg/I 635 <br />Sulfate (S04), mg/I 347 624 520 <br />Arsenic, mg/I 0.009 0.023 <0.005 <br />Cadmium, mg/I 0.003 0.063 0.030 <br />Copper, mg/I . 0.028 0.080 <0.005 <br />Iron, mg/I 10.616 1.730 <0.02 <br />Lead, mg/I 0.137 0.029 <0.0001 <br />Manganese, mg/I 0.064 <0.02 0.304 <br />Silver, mg/I <0.015 <0.00001 <0.00001 <br />Zinc, mg/I 0.179 8.170 5.530 <br />(1) Metal analyses incwae dotn total (untnterea) ano aissoiveo truterea) results <br />(2) Metal analyses are dissolved (water filtered and acidified in the laboratory) <br />(3) Metals not reported are generally below detection <br />1601A-20060911 9